阅读说明：本技术 一种水平双极性极板铅酸蓄电池和密封方法 (Lead-acid storage battery with horizontal bipolar polar plates and sealing method ) 是由 殷九如 于 2021-11-02 设计创作，主要内容包括：本发明提供了一种水平双极性极板铅酸蓄电池和密封方法,属于铅酸蓄电池技术领域。该铅酸蓄电池包括外壳体和多个极组,其中外壳体具有安装槽,安装槽内具有多组隔离筋板,隔离筋板的板面上具有走线槽,多组隔离筋板将安装槽分隔为多个极组仓和两个铸焊端子仓。多个极组一一对应安装在多个极组仓中,每个极组包括沿竖直方向依次层叠布置的多片极板以及设置在相邻两片极板之间的隔板。每个极板的两端还连接有工序密封条,工序密封条包括连接板和卡板,隔板位于两个卡板之间,卡板经过走线槽伸入密封工艺槽中,多片极板所对应连接的工序密封条的卡板依次层叠布置且相互连接。水平双极性极板铅酸蓄电池和密封方法能够提高铅酸蓄电池的使用寿命。(The invention provides a lead-acid storage battery with a horizontal bipolar plate and a sealing method, and belongs to the technical field of lead-acid storage batteries. This lead acid battery includes shell body and a plurality of utmost point group, and wherein the shell body has the mounting groove, has the multiunit in the mounting groove and keeps apart the gusset, keeps apart the trough on the face of gusset, and the multiunit is kept apart the gusset and is separated the mounting groove for a plurality of utmost point group storehouses and two cast joint terminal storehouses. A plurality of utmost point groups one-to-one installs in a plurality of utmost point group storehouses, and every utmost point group includes the baffle of setting between two adjacent polar plates and the multi-disc polar plate that stacks gradually along vertical direction. The both ends of every polar plate still are connected with the process sealing strip, and the process sealing strip includes connecting plate and cardboard, and the baffle is located between two cardboards, and the cardboard stretches into sealed technology groove through the trough, and the cardboard of the process sealing strip that the multi-disc polar plate corresponds to be connected stacks gradually and arranges and interconnect. The lead-acid storage battery with the horizontal bipolar plate and the sealing method can prolong the service life of the lead-acid storage battery.)

1. A horizontal bipolar plate lead acid battery, comprising:

the outer shell (1), the outer shell (1) is provided with a mounting groove (1a), multiple groups of isolation rib plates (11) are arranged in the mounting groove (1a), each group of isolation rib plates (11) comprises two isolation rib plates (11), the two isolation rib plates (11) are arranged in parallel at intervals and define a sealing process groove (1b), a wiring groove (111) is formed in the surface of each isolation rib plate (11), the mounting groove (1a) is divided into a plurality of pole group bins (1c) and two cast-weld terminal bins (1d) by the multiple groups of isolation rib plates (11) along the horizontal direction, and the two cast-weld terminal bins (1d) are respectively located on two sides of the pole group bins (1 c);

the multiple pole groups (2) are correspondingly installed in the multiple pole group bins (1c) one by one, each pole group (2) comprises multiple pole plates (21), the multiple pole plates (21) are sequentially stacked in the vertical direction, a partition plate (22) is arranged between every two adjacent pole plates (21), two ends of each pole plate (21) are further connected with process sealing strips (23), each process sealing strip (23) comprises a connecting plate (231) and a clamping plate (232), one end of each connecting plate (231) is connected with the corresponding pole plate (21), the other end of each connecting plate (231) is vertically connected with the corresponding clamping plate (232), each partition plate (22) is located between the two clamping plates (232), and each clamping plate (232) extends into the corresponding sealing process groove (1b) through the wiring groove (111) in the vertical direction, the clamping plates (232) of the process sealing strips (23) correspondingly connected with the plurality of polar plates (21) are sequentially arranged in a stacked mode and are connected with one another.

2. The lead-acid storage battery with the horizontal bipolar plate according to claim 1, wherein the plate surface of the clamping plate (232) connected with the connecting plate (231) is abutted to the plate surface of one side, facing the sealing process groove (1b), of the isolating rib plate (11).

3. The lead-acid battery with the horizontal bipolar plate is characterized by further comprising a plurality of heightened slot covers (3), wherein the heightened slot covers (3) correspond to the sealing process slots (1b) one by one, the heightened slot covers (3) are installed in the corresponding sealing process slots (1b) and cover the corresponding sealing process slots (232), and the heightened slot covers (3) are provided with filling openings (31) communicated with the sealing process slots (1 b).

4. The lead-acid storage battery with the horizontal bipolar plate is characterized in that a plurality of reinforcing ribs (311) are arranged in the pouring opening (31), the pouring opening (31) is strip-shaped and parallel to the isolation rib plate (11), the reinforcing ribs (311) are uniformly arranged at intervals along the length direction of the pouring opening (31), the reinforcing ribs (311) are perpendicular to the isolation rib plate (11), and two ends of the reinforcing ribs are respectively connected to two opposite side walls of the pouring opening (31).

5. The horizontal bipolar plate lead-acid battery according to claim 3, characterized in that the process sealing strip (23), the elevated channel cover (3) and the outer casing (1) are injection molded from the same material.

6. The lead-acid storage battery with the horizontal bipolar plate is characterized by further comprising two cast-on terminals (4), wherein the two cast-on terminals (4) are respectively arranged on two sides of the plurality of pole groups (2) in a direction perpendicular to the isolating rib plates (11), the cast-on terminals (4) are clamped with the wiring grooves (111) and extend into the cast-on terminal bin (1d) through the wiring grooves (111), and the heightening groove cover (3) covers the cast-on terminals (4).

7. The horizontal bipolar plate lead-acid battery according to any one of claims 1 to 6, wherein the distance between two opposite groove walls of the mounting groove (1a) in the direction parallel to the isolation rib (11) is greater than the width of the plate (21).

8. The horizontal bipolar plate lead-acid battery according to any one of claims 1 to 6, further comprising a housing cover (5), wherein the housing cover (5) is disposed on the housing body (1) and covers the mounting groove (1a), and the housing cover (5) has a plurality of acid injection holes (51) communicating with the plurality of pole group compartments (1 c).

9. The horizontal bipolar plate lead acid battery according to claim 8, characterized in that the housing cover (5) is connected with the housing body (1) by a thermoplastic sealing process or an epoxy glue bonding process.

10. A sealing method applied to the horizontal bipolar plate lead-acid battery of any one of claims 1 to 9, comprising:

the multiple groups of isolation rib plates (11) are arranged in the mounting groove (1a) of the outer shell (1);

injection molding the process sealing strips (23) at two ends of the plurality of polar plates (21);

arranging the plurality of polar plates (21) in a stacked manner along the vertical direction, arranging the partition plate (22) between two adjacent polar plates (21), wherein the partition plate (22) is positioned between clamping plates (232) of two process sealing strips (23), so that the clamping plates (232) of the process sealing strips (23) correspondingly connected with the plurality of polar plates (21) are sequentially arranged in a stacked manner and are mutually connected to form a plurality of polar groups (2);

installing the plurality of pole groups (2) into the plurality of pole group bins (1c) in a one-to-one correspondence manner, enabling the clamping plates (232) which are sequentially arranged in a stacked manner and connected with each other to extend into the sealed process groove (1b) through the wiring groove (111) so as to isolate the plurality of pole plates (21) and the partition plates (22) from the sealed process groove (1b) and the cast-weld terminal bin (1d), and forming a perfusion cavity (1e) between every two pole group bins (1c) and between the adjacent pole group bins (1c) and the cast-weld terminal bin (1 d);

and pouring sealing materials into the pouring cavities (1e) to seal the pole groups (2) and the wall of the outer shell (1) between the pole groups (2).

Technical Field

The invention relates to the technical field of lead-acid storage batteries, in particular to a horizontal bipolar plate lead-acid storage battery and a sealing method.

Background

The lead accumulator is widely used in automobile starting power supply, uninterrupted power supply, power supply from electric bicycle to diesel submarine, energy storage power supply and other fields. The horizontal bipolar plate battery adopts a mode that the plate is horizontally arranged in the mounting groove of the battery shell, and positive and negative active substances on the plate are alternately stacked (a partition plate is wrapped in the middle) to form a plurality of plate groups, so that three-dimensional series-parallel connection in the battery is realized. In order to ensure that only electrons flow between different pole groups in the battery or between the pole groups at two ends of the battery and the cast-weld terminal and avoid ion flow, integral sealing between a plurality of pole groups and between the cast-weld terminal and the wall of the shell groove is required.

In the related art, it is common to fill an acid solution between the gaps of the plurality of pole groups and between the cast-on terminals located at both ends of the pole groups and the wall of the case groove first, so that the active materials in the pole groups and the separators between the positive and negative active materials are in a relatively liquid saturated state. And then pouring molten sealing materials into the gaps, so that the active materials and the polar plates in a relatively liquid saturated state can avoid absorbing liquid molten sealing materials, and the performance of the battery is prevented from being reduced by chemical reaction. After the molten sealing material is solidified, the sealing between the plurality of pole groups and between the cast-on terminal and the wall of the shell groove can be realized.

Since there are a great number of lead wires for interconnection between the plurality of pole groups of the battery and between the multi-layered active material of each pole group, the lead wires arranged in a crisscross pattern mainly serve to transfer and flow electrons. By adopting the sealing method in the related art, after the lead wires exposed outside the positive and negative active materials are soaked in the acid solution, although the lead wires can be prevented from being absorbed into the liquid-state molten sealing material, the outer surfaces of the lead wires can also react with the acid solution to form a corrosion layer, and meanwhile, the cast-weld terminals and the wall of the outer shell can also be corroded by the acid solution to different degrees, so that the service life of the horizontal bipolar lead-acid storage battery is shortened.

Disclosure of Invention

The embodiment of the invention provides a horizontal bipolar plate lead-acid storage battery and a sealing method, which optimize the sealing mode of the storage battery, integrally seal a plurality of pole groups, cast-weld terminals and the wall of a shell groove by using a molten adhesive sealing material, simultaneously do not need to pre-treat active substances and clamping plates in the pole groups by injecting acid liquor, avoid corroding the shell, lead wires and cast-weld terminals in the storage battery, and further prolong the service life. The technical scheme is as follows:

in a first aspect, an embodiment of the present invention provides a horizontal bipolar plate lead-acid battery, including:

the insulation structure comprises a shell body, wherein the shell body is provided with a mounting groove, a plurality of groups of insulation rib plates are arranged in the mounting groove, each group of insulation rib plates comprise two insulation rib plates, the two insulation rib plates are arranged in parallel at intervals and define a sealed process groove, a wiring groove is arranged on the surface of each insulation rib plate, the mounting groove is divided into a plurality of pole group bins and two cast-weld terminal bins by the plurality of groups of insulation rib plates along the horizontal direction, and the two cast-weld terminal bins are respectively positioned on two sides of the pole group bins;

the polar groups are installed in the polar group bins in a one-to-one correspondence mode, each polar group comprises a plurality of polar plates, the polar plates are sequentially arranged in a stacked mode in the vertical direction, a partition plate is arranged between every two adjacent polar plates, two ends of each polar plate are further connected with process sealing strips, each process sealing strip comprises a connecting plate and a clamping plate, one end of each connecting plate is connected with the corresponding polar plate, the other end of each connecting plate is perpendicularly connected with the corresponding clamping plate, each partition plate is located between the two clamping plates, the clamping plates extend into the sealing process groove through the wiring grooves, and the clamping plates of the process sealing strips, which are correspondingly connected with the polar plates, are sequentially arranged in a stacked mode and are connected with one another in the vertical direction.

Optionally, the plate surface of the clamping plate connected with the connecting plate is abutted against the plate surface of the isolating rib plate facing one side of the sealing process tank.

Optionally, the horizontal bipolar plate lead-acid battery further comprises a plurality of height increasing groove covers, the height increasing groove covers correspond to the sealing process grooves one by one, the height increasing groove covers are installed in the corresponding sealing process grooves and cover the position above the clamping plates arranged in a stacked manner, and filling openings communicated with the sealing process grooves are formed in the height increasing groove covers.

Optionally, a plurality of reinforcing ribs are arranged in the filling opening, the filling opening is strip-shaped and parallel to the isolation rib plate, the reinforcing ribs are arranged along the length direction of the filling opening at even intervals, and the reinforcing ribs are perpendicular to the isolation rib plate, and two ends of the isolation rib plate are respectively connected to two opposite side walls of the filling opening.

Optionally, the process sealing strip, the heightened groove cover and the outer shell are formed by injection molding of the same material.

Optionally, the horizontal bipolar plate lead-acid battery further includes two cast-on terminals, the two cast-on terminals are respectively disposed on two sides of the plurality of electrode groups in a direction perpendicular to the isolation rib plate, the cast-on terminals are clamped with the wiring groove and extend into the cast-on terminal bin through the wiring groove, and the heightening groove cover is disposed above the cast-on terminals.

Optionally, in a direction parallel to the isolation rib plate, a distance between two opposite groove walls of the installation groove is greater than a width of the pole plate.

Optionally, the horizontal bipolar plate lead-acid battery further comprises a housing cover, the housing cover is arranged on the housing body and covers the mounting groove, and the housing cover is provided with a plurality of acid injection holes communicated with the plurality of pole group bins.

Optionally, the housing cover and the housing body are connected by a thermal sealing process or an epoxy glue bonding process.

In a second aspect, an embodiment of the present invention further provides a sealing method, which is applied to the horizontal bipolar plate lead-acid battery described in the first aspect, where the sealing method includes:

arranging the plurality of groups of isolation rib plates in the mounting groove of the outer shell;

injection molding the process sealing strips at two ends of the plurality of polar plates;

arranging the plurality of polar plates in a stacked manner along the vertical direction, arranging the partition between every two adjacent polar plates, and positioning the partition between clamping plates of the two process sealing strips so that the clamping plates of the process sealing strips correspondingly connected with the plurality of polar plates are sequentially arranged in a stacked manner and mutually connected to form a plurality of polar groups;

installing the plurality of pole groups into the plurality of pole group bins in a one-to-one correspondence manner, and enabling the clamping plates which are sequentially stacked and connected with each other to extend into the sealed process groove through the wiring grooves so as to isolate the plurality of pole plates and the partition plates from the sealed process groove and the cast-weld terminal bins, wherein a pouring cavity is formed between each two pole group bins and between the adjacent pole group bins and the adjacent cast-weld terminal bins;

and pouring a sealing material into the plurality of pouring cavities to finish sealing among the plurality of pole groups and between the plurality of pole groups and the groove wall of the outer shell.

The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:

two process sealing strips are arranged on two sides of a plurality of polar plates of each polar group respectively, a sealing surface formed by the process sealing strips at two ends of the plurality of polar plates and a mounting groove wall of the outer shell are matched to form a filling cavity for filling sealing materials, and the plurality of polar plates and the partition plates in the polar groups are mutually isolated from the sealing materials to realize local sealing. When the plurality of pole groups, the cast-weld terminals and the groove wall of the outer shell are integrally sealed by the molten adhesive sealing material, the plurality of pole plates and the partition plates in the pole groups are not contacted with the molten sealing material in the whole process, and active substances and the clamping plates in the pole groups do not need to be pretreated by acid liquor. The lead-acid storage battery sealing process is saved, meanwhile, the case, lead wires and cast-weld terminals in the battery are prevented from being corroded, and the service life of the lead-acid storage battery is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic top view of an outer casing according to an embodiment of the present invention;

FIG. 2 is a front sectional view of the outer housing shown at A-A in FIG. 1;

FIG. 3 is a left side structural cross-sectional view of the outer housing as shown at B-B in FIG. 2;

FIG. 4 is a schematic diagram of a top view of a plurality of pole groups according to an embodiment of the present invention;

FIG. 5 is a cross-sectional elevation view of a plurality of inter-pole group plates as shown at A-A in FIG. 4;

FIG. 6 is a schematic left side view of the multi-pole inter-assembly process seal bar shown at B-B in FIG. 5;

FIG. 7 is a schematic top view of a process seal strip according to an embodiment of the present invention;

FIG. 8 is a front structural cross-sectional view of the process seal bar as shown at A-A in FIG. 7;

FIG. 9 is a schematic left side view of the process seal bar shown at B-B in FIG. 8;

FIG. 10 is a schematic view of a horizontal bipolar plate lead-acid battery according to an embodiment of the present invention;

FIG. 11 is a cross-sectional elevation view of a horizontal bipolar plate lead acid battery as shown at A-A in FIG. 10;

FIG. 12 is a cross-sectional view of the left side view of a horizontal bipolar plate lead acid battery as shown in FIG. 11B-B;

FIG. 13 is a cross-sectional view of an alternative horizontal bipolar plate lead acid battery in accordance with an embodiment of the present invention;

fig. 14 is a flow chart of a sealing method according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the related art, it is common to fill an acid solution between the gaps of the plurality of pole groups and between the cast-on terminals located at both ends of the pole groups and the wall of the case groove first, so that the active materials in the pole groups and the separators between the positive and negative active materials are in a relatively liquid saturated state. And then pouring molten sealing materials into the gaps, so that the active materials and the polar plates in a relatively liquid saturated state can avoid absorbing liquid molten sealing materials, and the performance of the battery is prevented from being reduced by chemical reaction. After the molten sealing material is solidified, the sealing between the plurality of pole groups and between the cast-on terminal and the wall of the shell groove can be realized.

Since there are a great number of lead wires for interconnection between the plurality of pole groups of the battery and between the multi-layered active material of each pole group, the lead wires arranged in a crisscross pattern mainly serve to transfer and flow electrons. By adopting the sealing method in the related art, after the lead wires exposed outside the positive and negative active materials are soaked in the acid solution, although the lead wires can be prevented from being absorbed into the liquid-state molten sealing material, the outer surfaces of the lead wires can also react with the acid solution to form a corrosion layer, and meanwhile, the cast-weld terminals and the wall of the outer shell can also be corroded by the acid solution to different degrees, so that the service life of the horizontal bipolar lead-acid storage battery is shortened.

Fig. 1 is a schematic top view of an outer casing according to an embodiment of the present invention. Fig. 2 is a front sectional view of the outer housing shown at a-a in fig. 1. Fig. 3 is a left side structural sectional view of the outer case shown at B-B in fig. 2. Fig. 4 is a schematic top view of a plurality of pole groups according to an embodiment of the present invention. Fig. 5 is a cross-sectional elevation view of a plurality of inter-pole group plates as shown at a-a in fig. 4. FIG. 6 is a schematic left side view of the multi-pole inter-assembly process seal bar shown at B-B in FIG. 5. Fig. 7 is a schematic top view of a process sealing strip according to an embodiment of the present invention. Fig. 8 is a front structural cross-sectional view of the process seal bar as shown at a-a in fig. 7. Fig. 9 is a left side view schematic of the process seal bar shown at B-B in fig. 8. Fig. 10 is a schematic view of a horizontal bipolar plate lead-acid battery provided by an embodiment of the invention. Fig. 11 is a cross-sectional elevation view of a horizontal bipolar plate lead acid battery as shown at a-a in fig. 10. Fig. 12 is a left side structural cross-sectional view of a horizontal bipolar plate lead acid battery as shown in fig. 11B-B. Fig. 13 is a cross-sectional view of another horizontal bipolar plate lead-acid battery according to an embodiment of the present invention. As shown in fig. 1 to 13, by practice, the present inventors provide a horizontal bipolar plate lead acid battery comprising an outer case 1 and a plurality of pole groups 2.

Wherein, shell body 1 has mounting groove 1a, has multiunit isolation gusset 11 in mounting groove 1 a. Each group of isolation rib plates 11 comprises two isolation rib plates 11, the two isolation rib plates 11 are arranged in parallel at intervals and define a sealing process groove 1b, and the surface of each isolation rib plate 11 is provided with a wiring groove 111. The multiple groups of isolation rib plates 11 divide the installation groove 1a into a plurality of pole group bins 1c and two cast-weld terminal bins 1d along the horizontal direction, and the two cast-weld terminal bins 1d are respectively positioned at two sides of the pole group bins 1 c.

The plurality of pole groups 2 are installed in the plurality of pole group bins 1c in a one-to-one correspondence, and each pole group 2 includes a plurality of pole plates 21. The plurality of polar plates 21 are sequentially stacked in the vertical direction, a partition 22 is arranged between every two adjacent polar plates 21, and two ends of each polar plate 21 are connected with process sealing strips 23. The process sealing strip 23 comprises a connecting plate 231 and clamping plates 232, one end of the connecting plate 231 is connected with the pole plate 21, the other end of the connecting plate 231 is vertically connected with the clamping plates 232, and the partition 22 is located between the two clamping plates 232. The clamping plates 232 extend into the sealing process groove 1b through the wiring groove 111, and the clamping plates 232 of the process sealing strips 23 correspondingly connected with the plurality of polar plates 21 are sequentially stacked and connected with each other in the vertical direction.

In the embodiment of the invention, when the horizontal polarity lead-acid storage battery is manufactured, each pole group 2 is prepared by coating a plurality of pole plates 21 on a grid substrate. The plurality of pole plates 21 are coated in a positive-negative sequential stacking manner, that is, a layer of positive pole plates 21 and a layer of negative pole plates 21 are stacked in a staggered manner, and a separator 22 is arranged between two adjacent layers of pole plates 21 to ensure smooth ion conduction between the plurality of layers of pole plates 21. While laying a plurality of polar plates 21, injection molding process sealing strips 23 at two ends of each layer of polar plate 21, wherein the process sealing strips 23 are connected with the end parts of the polar plates 21 through one end of a connecting plate 231, and the other end of the connecting plate 231 is vertically connected with a clamping plate 232. The chucking plate 232 and the connecting plate 231 form an "L" -shaped stepped structure. While the plurality of electrode plates 21 are sequentially stacked, the chucking plates 232 of the process sealing tapes 23 located at both ends of the plurality of electrode plates 21 are also stacked in the vertical direction and connected to each other. In the horizontal direction, the separator 22 between two adjacent layers of the polar plates 21 is sealed between the clamping plates 232 of two process sealing strips 23. In the horizontal direction, two adjacent pole groups 2 are connected by a plurality of lead wires m, and the lead wires m positioned at the outermost ends of the plurality of pole groups 2 are integrally cast-welded to form the cast-weld terminal 4. After the plurality of pole groups 2 are manufactured, the plurality of pole groups 2 are aligned with the plurality of pole group bins 1c in the mounting groove 1a and are loaded in a one-to-one correspondence manner, so that the plurality of pole groups 2 are assembled with the outer shell 1, a plurality of lead wires m between two adjacent pole groups 2 are arranged in the sealing process groove 1b between the two isolation rib plates 11 through the wiring groove 1a, and the two cast-weld terminals 4 are respectively arranged in the two cast-weld terminal bins 1 d. Meanwhile, the connecting plates 231 of the process sealing strips 23 sequentially stacked on both sides of each pole group 2 are connected with the wiring grooves 111 on the isolation rib plates 11 in a matching manner, and the clamping plates 232 extend into the sealing process groove 1b through the wiring grooves 111. The surface of the plurality of clamping plates 232 arranged in a stacked manner, which faces away from the plurality of polar plates 21, forms a complete sealing surface after being integrally compressed and packed by the polar group 2, and the plurality of polar plates 21 and the separators 22 in the polar group 2 are isolated and sealed from the two adjacent sealing process grooves 1b in the horizontal direction. The plurality of clamping plates 232 in the sealing process groove 1b and the groove wall of the outer shell 1 form an independent filling cavity 1e, and the filling cavity 1e is filled with a sealing material with adhesive property, so that the whole sealing of the horizontal bipolar lead-acid storage battery can be completed by the cured sealing material.

The embodiment of the invention optimizes the sealing mode of the storage battery, two process sealing strips 23 are respectively arranged at two sides of a plurality of polar plates 21 of each polar group 2, a sealing surface formed by the process sealing strips 23 at two ends of the plurality of polar plates 21 is matched with the groove wall of the mounting groove 1a of the outer shell 1 to form a filling cavity 1e for filling sealing materials, and the plurality of polar plates 21 and the partition plate 22 in the polar group 2 are mutually isolated from the sealing materials to realize local sealing. The plurality of electrode groups 2, the cast-on terminal 4, and the groove wall of the outer case 1 are sealed integrally by the molten adhesive sealing material, and the plurality of electrode plates 21 and the separators 22 in the electrode groups 2 are prevented from being in contact with the molten sealing material throughout the entire process, so that pretreatment of the active material and the chucking plate in the electrode groups by an acid solution is not required. The lead-acid storage battery sealing process is saved, meanwhile, the case, lead wires and cast-weld terminals in the battery are prevented from being corroded, and the service life of the lead-acid storage battery is prolonged.

In the present invention, for two adjacent pole groups 2, a plurality of lead wires are connected between each layer of pole plate 21, and the gap between the pole plates 21 is small, so when the process sealing strip 23 is injection molded, the process sealing strip is applied by simultaneously injection molding on both sides of the pole plate 21 while laying each layer of pole plate 21, only the lead wires connected to the pole plates 21 in the same layer are wrapped in the lead wires while molding, and the whole pole group 2 is finally laminated. The injection molding of the process sealing strip 23 after the multiple electrode groups 2 are molded is avoided, the preparation space is small due to excessive lead wires between the two adjacent electrode groups 2, the processing is difficult, the condition that the subsequent sealing effect is influenced by the processing gap is easy to occur, and the sealing property of the horizontal bipolar plate lead-acid storage battery is improved.

For example, for the injection molding of the process sealing tape 23, the injection molding may be performed on the substantially corresponding portion of the grid before the active material is coated on the plates 21, or may be performed on both ends of the active material of each plate 21 after the coating, curing and drying processes are completed on the plates 21. In the embodiment of the invention, the sealing strips 23 are formed by injection molding at the corresponding parts on the grid substrate before the active substances are coated on the polar plates 21, and the active substances are directly connected after being coated.

Optionally, the plate surface of the clamping plate 232 connected to the connecting plate 231 abuts against the plate surface of the side of the isolation rib plate 11 facing the sealing process tank 1 b. For example, in the embodiment of the present invention, after the plurality of pole groups 2 are manufactured, the plurality of pole groups 2 are aligned with the plurality of pole group compartments 1c in the mounting groove 1a and are installed in one-to-one correspondence, and then the assembly of the plurality of pole groups 2 with the outer housing 1 is completed. Through carrying out supporting size design at the process sealing strips 23 of the opposite polar plate 21 both sides and the multiunit isolation rib plate 11 on the shell body 1, set up the interval of cardboard 232 on the sealing strip 23 at each polar plate 21 both ends to be equal with the interval of two isolation rib plates 11 that are close to each other in two sets of adjacent isolation rib plates 11. When the assembly of the plurality of pole groups 2 and the outer shell 1 is completed, the board surface of the clamping board 232 connected with the connecting board 231 is abutted against the board surface of the isolation rib plate 11 facing one side of the sealing process groove 1b, so that each pole group 2 can be matched and fastened with the corresponding pole group bin 1c, and the pole groups are tightly screwed. The phenomenon that the injected molten sealing material permeates into the pole group bin 1c from the sealing process groove 1b through gaps to react with active materials in the pole plates 21 and the partition plate 22 due to assembly size deviation is avoided, and the sealing performance and the battery performance of the horizontal bipolar pole plate lead-acid storage battery are further improved.

Optionally, the horizontal bipolar plate lead-acid battery further includes a plurality of height increasing slot covers 3, the height increasing slot covers 3 correspond to the sealing process slots 1b one by one, the height increasing slot covers 3 are installed in the corresponding sealing process slots 1b and cover the top of the clamping plate 232 arranged in a stacked manner, and the height increasing slot covers 3 are provided with filling openings 31 communicated with the sealing process slots 1 b. For example, after the electrode group 2 is manufactured and is packed and loaded into the corresponding electrode group storage 1c, the electrode plate 21 located at the uppermost layer of the electrode group 2 may have a height difference from the upper edge of the mounting groove 1a due to assembly error, so that a gap may exist between the top of the sealing process groove 1b and the electrode group storage 1c, and the molten sealing material may infiltrate into the electrode group storage 1c from the injection cavity 1e through the gap. In the embodiment of the invention, the heightened groove covers 3 corresponding to the plurality of sealing process grooves 1b one by one are manufactured, after the pole group 2 is packed and loaded into the corresponding pole group bin 1c in a pressing manner, the heightened groove covers 3 are installed in the corresponding sealing process grooves 1b and are covered above the clamping plates 232 arranged in a stacking manner, the upper edges of the uppermost pole plate 21 and the installation groove 1a are isolated and sealed in a height difference mode, molten sealing materials can be poured into the sealing process grooves 1b through the pouring openings 31 in the heightened groove covers 3, the complete independent pouring cavities 1e formed by the plurality of clamping plates 232 in the sealing process grooves 1b and the groove walls of the outer shell 1 are bonded and sealed, and the sealing performance and the battery performance of the bipolar pole plate lead-acid storage battery are further improved.

Optionally, the pouring opening 31 has a plurality of reinforcing ribs 311 therein, the pouring opening 31 is strip-shaped and parallel to the isolation rib plate 11, the plurality of reinforcing ribs 311 are uniformly arranged at intervals along the length direction of the pouring opening 31, the reinforcing ribs 311 are perpendicular to the isolation rib plate 11, and two ends of the reinforcing ribs 311 are respectively connected to two opposite side walls of the pouring opening 31. For example, after the molten sealing material injected into the sealing process tank 1b is solidified and bonded, stress may be applied to the sidewall of the pouring opening 31, and the pole group 2 may bulge during continuous operation of the battery to apply stress to the height-increasing tank cover 1 b. In the embodiment of the invention, the plurality of reinforcing ribs 311 are uniformly arranged between the two opposite side walls of the strip-shaped pouring opening 31 at intervals along the length direction of the strip-shaped pouring opening 31, so that the gap structure of the pouring opening 31 and the overall mechanical strength of the heightened groove cover 3 can be enhanced by the plurality of reinforcing ribs 311, the problems of deformation and generation of gaps due to stress or cracking with a sealing material and the like are avoided, and the sealing performance and the service life of the bipolar plate lead-acid storage battery are further improved.

Alternatively, the process sealing strip 23, the raised channel cover 3 and the outer casing 1 are injection moulded from the same material. Illustratively, in the present embodiment, the process sealing tape 23, the heightening channel cover 3 and the outer casing 1 are injection molded by ABS (Acrylonitrile Butadiene Styrene) plastic or polypropylene plastic. ABS plastics have the advantages of chemical corrosion resistance, heat resistance, high toughness, low price and the like, and are usually used for lead-acid storage batteries with smaller sizes; and the polypropylene plastic has stronger acid and alkali resistance and is generally used for lead-acid storage batteries with larger sizes.

Optionally, the horizontal bipolar plate lead-acid battery further comprises two cast-on terminals 4, the two cast-on terminals 4 are respectively disposed on two sides of the plurality of electrode groups 2 in a direction perpendicular to the isolation rib plate 11, the cast-on terminals 4 are clamped with the wiring grooves 111 and extend into the cast-on terminal bin 1d through the wiring grooves 111, and the heightening groove cover 3 is covered above the cast-on terminals 4. Illustratively, in the embodiment of the present invention, the plurality of lead wires m at both ends of the plurality of pole groups 2 are integrally cast-welded into the cast-on terminal 4 having a shape matching the edge of the wiring groove 111. After the plurality of pole groups 2 are correspondingly installed and connected with the outer shell 1, the two cast-on terminals 4 are respectively clamped with the wiring grooves 111 and extend into the cast-on terminal bin 1d through the wiring grooves 111, so that the assembly is more stable and tight, gaps between the cast-on terminal bin 1d and the sealing process groove 1b are reduced, the phenomenon that the molten sealing materials leak from each other to cause additional stress to the cast-on terminals 4 passing through the wiring grooves 111 to cause offset deformation or damage is avoided, and the sealing performance and the battery performance of the bipolar plate lead-acid storage battery are further improved.

Optionally, in a direction parallel to the isolation rib plate 11, the distance between two opposite groove walls of the installation groove 1a is greater than the width of the pole plate 21. Illustratively, in the embodiment of the present invention, the distance between the two opposite groove walls of the mounting groove 1a is set to be greater than the width of the pole plate 21 in the direction parallel to the isolation rib plate 11. A certain buffer gap is reserved between the polar plate 21 and the groove wall of the mounting groove 1a, so that the phenomenon that the polar group 2 bulges in the continuous working process of the storage battery to generate stress to the side wall of the outer shell 1 to cause deformation is avoided. Correspondingly, the wall thickness of the outer shell 1 provided by the embodiment of the invention can be designed to be relatively thinner and lighter, so that the weight of the battery is reduced, the weight ratio energy of the battery is improved, and the light weight of the lead-acid storage battery is facilitated.

Optionally, the horizontal bipolar plate lead-acid battery further comprises a case cover 5, the case cover 5 is covered on the case body 1 and covers the mounting groove 1a, and the case cover 5 is provided with a plurality of acid injection holes 51 communicating with the plurality of pole group compartments 1 c. Illustratively, in the embodiment of the invention, after the compression packing and the integral sealing of the plurality of pole groups 2 are completed, the cover closing and sealing of the whole horizontal bipolar plate lead-acid storage battery are completed by covering the outer shell cover 5 on the outer shell 1 and covering the mounting groove 1 a. And after the cover is closed, a plurality of acid injection holes 51 on the shell cover 5 can be used for adding acid into the plurality of pole group bins 1c, so that the horizontal bipolar plate lead-acid storage battery can be normally used.

It should be noted that, in the embodiment of the present invention, each of the pole group compartments 1c in the outer casing 1 provided by the embodiment of the present invention is independently sealed, and the inner wall size and the volume are all fixed and the same. The acid adding operation is carried out after the outer shell 1 is covered, so that the sufficient acid liquid adding and the consistency of the acid amount of the electrode group bin 1c where each electrode group 2 is located can be ensured, and the quality and the performance of the lead-acid storage battery can be further ensured.

Optionally, the housing cover 5 is connected to the housing body 1 by a heat sealing process or an epoxy glue bonding process. Illustratively, in the embodiment of the present invention, the covering between the housing cover 5 and the housing body 1 may use an epoxy glue bonding process in addition to a conventional thermoplastic sealing process. The lead-acid storage battery is easier to operate, more reliable and more economical, and can effectively improve the processing efficiency of the lead-acid storage battery and reduce the manufacturing cost. The two processes can ensure the cover fastening tightness and stability between the shell cover 5 and the shell 1, and the selection of the specific process is not limited in the invention as long as the integral sealing property of the lead-acid storage battery can be ensured.

Fig. 14 is a flow chart of a sealing method according to an embodiment of the present invention. As shown in fig. 14, an embodiment of the present invention further provides a sealing method, which is suitable for the horizontal bipolar plate lead-acid battery shown in fig. 1 to 13, and includes:

and S1, arranging a plurality of groups of isolation rib plates 11 in the mounting groove 1a of the outer shell 1.

S2, process sealing tapes 23 are injection molded at both ends of the multi-piece electrode plate 21.

S3, stacking the plurality of polar plates 21 in a vertical direction, disposing a separator 22 between two adjacent polar plates 21, and positioning the separator 22 between the clamping plates 232 of two process sealing strips 23, so that the clamping plates 232 of the process sealing strips 23 correspondingly connected to the plurality of polar plates 21 are sequentially stacked and connected to each other to form a plurality of polar groups 2.

S4, installing the plurality of pole groups 2 in the plurality of pole group bins 1c in a one-to-one correspondence manner, so that the clamping plates 232, which are sequentially stacked and connected to each other, extend into the sealing process groove 1b through the wiring groove 111 to isolate the plurality of pole plates 21 and the separators 22 from the sealing process groove 1b and the cast-weld terminal bins 1d, and a filling cavity 1e is formed between each two pole group bins 1c and between the adjacent pole group bins 1c and the cast-weld terminal bins 1 d.

S5, pouring a sealing material into the plurality of pouring cavities 1e to seal the plurality of pole groups 2 and the plurality of pole groups 2 from the groove wall of the outer housing 1.

According to the sealing method provided by the embodiment of the invention, two process sealing strips 23 are respectively arranged on two sides of a plurality of polar plates 21 of each polar group 2, a sealing surface formed by the process sealing strips 23 on two ends of the plurality of polar plates 21 is matched with the groove wall of the mounting groove 1a of the outer shell 1 to form a pouring cavity 1e for pouring sealing materials, and the plurality of polar plates 21 and the partition plates 22 in the polar group 2 are mutually isolated from the sealing materials to realize local sealing. The plurality of electrode groups 2, the cast-on terminal 4, and the groove wall of the outer case 1 are sealed integrally by the molten adhesive sealing material, and the plurality of electrode plates 21 and the separators 22 in the electrode groups 2 are prevented from being in contact with the molten sealing material throughout the entire process, so that pretreatment of the active material and the chucking plate in the electrode groups by an acid solution is not required. The lead-acid storage battery sealing process is saved, meanwhile, the case, lead wires and cast-weld terminals in the battery are prevented from being corroded, and the service life of the lead-acid storage battery is prolonged.

Further, the sealing method may be embodied as:

a plurality of groups of isolation rib plates 11 are arranged in the mounting groove 1a of the outer shell 1.

Thereafter, process seal bars 23 are injection molded at both ends of the plurality of electrode plates 21.

Then, the plurality of polar plates 21 are stacked in the vertical direction, the separator 22 is disposed between two adjacent polar plates 21, and the separator 22 is located between the clamping plates 232 of the two process sealing strips 23, so that the clamping plates 232 of the process sealing strips 23 correspondingly connected to the plurality of polar plates 21 are sequentially stacked and connected to each other to form a plurality of polar groups 2.

Then, the end portions of the lead wires m exposed outside the process sealing tape 23 at both ends of the plurality of pole groups 2 are integrally cast-welded to form the cast-on terminals 4.

Then, the plurality of pole groups 2 and the two cast-on terminals 4 are correspondingly installed in the plurality of pole group bins 1c and the two cast-on terminal bins 1d one by one, so that the clamping plates 232 which are sequentially stacked and connected with each other extend into the sealing process groove 1b through the wiring groove 111, and the plurality of sealing process grooves 1b isolate the plurality of pole groups 2 and the cast-on terminals 4 one by one.

Then, the plurality of heightened groove covers 3 are respectively arranged above the clamping plate 232 of the uppermost process sealing strip 23 of the plurality of pole groups 2 and the two cast-on terminals 4 in a covering manner, so that a sealing material pouring cavity 1e is formed between every two pole groups 2 and between the two end pole groups 2 and the cast-on terminals 4.

Thereafter, a sealing material is poured into the sealing material pouring cavity 1e to complete sealing between the plurality of pole groups 2 and between the two end pole groups 2 and the cast-on terminals 4 and between them and the outer case 1.

Finally, the case cover 5 is connected with the case body 1 through a thermal plastic sealing process or an epoxy resin adhesive bonding process to complete the overall sealing of the battery.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

The invention is not to be considered as limited to the particular embodiments shown and described, but is to be understood that various modifications, equivalents, improvements and the like can be made without departing from the spirit and scope of the invention.