阅读说明：本技术 铅蓄电池用铅网板栅及其制备方法 (Lead mesh grid for lead storage battery and preparation method thereof ) 是由 刘孝伟 于 2019-09-16 设计创作，主要内容包括：本发明涉及一种铅蓄电池用铅网板栅,包括由经线和纬线编织而成的板栅本体,所述的板栅本体中至少包括一个独立板栅；沿所述独立板栅纬线方向两侧形成粗塑料纬线边框；粗塑料纬线边框之间设置有粗铅丝纬线,所述粗铅丝纬线之间设置有细塑料纬线；沿所述独立板栅经线方向两侧形成粗塑料经线边框；粗塑料经线边框之间设置有细塑料经线。具有铅用量少,板栅设置有边框,在电池充放电过程中能够限制活性物质的膨胀、不易发生正负活性物接触短路和正极活性物软化脱落,提高电池使用寿命,板栅设置有极耳不需要预制汇流排的优点。(The invention relates to a lead mesh grid for a lead storage battery, which comprises a grid body woven by warps and wefts, wherein the grid body at least comprises an independent grid; forming thick plastic weft frames along two sides of the independent grid weft direction; thick lead wire wefts are arranged between the frames of the thick plastic wefts, and thin plastic wefts are arranged between the thick lead wire wefts; forming thick plastic warp frames along two sides of the warp direction of the independent grid; and thin plastic warps are arranged between the coarse plastic warp frames. The battery has the advantages that the lead consumption is low, the grid is provided with the frame, expansion of active substances can be limited in the battery charging and discharging process, contact short circuit of positive and negative active substances is not easy to occur, the positive active substances are not easy to soften and fall off, the service life of the battery is prolonged, and the grid is provided with lugs without prefabricating a busbar.)

1. A lead mesh grid for a lead storage battery is characterized in that: the grid comprises a grid body woven by warps and wefts, wherein the grid body at least comprises an independent grid; forming thick plastic weft frames along two sides of the independent grid weft direction; and thick lead wire wefts are arranged between the thick plastic weft frames.

2. The lead grid for lead storage batteries according to claim 1, wherein fine plastic wefts are arranged between the coarse lead wire wefts.

3. The lead net grid for lead storage batteries according to claim 2, wherein thick plastic warp frames are formed along both sides of the warp direction of the independent grid; and thin plastic warps are arranged between the coarse plastic warp frames.

4. The lead grid for lead storage batteries according to claim 2, wherein the coarse plastic weft diameter is greater than the coarse lead wire weft diameter, and the coarse lead wire weft diameter is greater than the fine plastic weft diameter.

5. The lead grid for lead storage batteries according to claim 4, characterized in that: the thick lead wire weft consists of a glass fiber lead wire core wire and an alloy coated on the glass fiber lead wire core wire.

6. The lead grid for lead storage batteries according to claim 5, characterized in that: the fine plastic wire weft is made of PP plastic.

7. The lead grid for lead-acid batteries according to any one of claims 1 to 6, characterized in that: the independent grid forms a lead belt along the warp direction, and the lead belt and the thick lead wire weft are integrated.

8. The lead grid for lead storage batteries according to claim 7, characterized in that: and the independent grid is woven with a lead belt along the warp direction.

9. The lead grid for lead storage batteries according to claim 7, characterized in that: the lead belt and the thick lead wire weft are integrated through brazing.

10. The lead grid for lead-acid batteries according to any one of claims 1 to 6, characterized in that: the lead belt type grid comprises a grid body and is characterized in that the grid body at least comprises two independent grids, a lead belt is formed between the two independent grids along the warp direction, and the lead belt and the thick lead wire weft of the two independent grids are integrated.

11. A pole plate, comprising: the plate is made of the lead grid for lead storage battery according to any one of claims 1 to 6.

12. A lead-acid battery, characterized in that: made from the plate of claim 11.

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of lead storage batteries, in particular to a lead mesh grid for a lead storage battery and a preparation method thereof, wherein the lead mesh grid is high in production efficiency and good in corrosion resistance.

[ background of the invention ]

The lead accumulator is widely used in the fields of automobile starting power supply, uninterrupted power supply, power supply and energy storage power supply from electric bicycle to diesel submarine, etc. because of its advantages of stability, reliability, no memory effect, low cost, capacity of being made into single large-capacity battery, etc., its output and energy storage amount are still the first of chemical power supply. The grid of the traditional lead storage battery has three preparation methods: firstly, gravity casting is carried out, and the method has wide application range, low efficiency and high pollution; the grid is punched, the method is to prefabricate the lead belt first and then punch and process, its advantage is high in efficiency, but will produce 70-80% blanking while punching, the energy consumption is high, and can only make the sheet bar below 1.2 mm; and thirdly, continuous casting and rolling, the method has the advantages of high efficiency and low energy consumption, but the grid is not corrosion-resistant and can only be used for manufacturing a thin grid with the thickness of less than 1.5 mm. Therefore, a lead mesh grid has been developed instead, i.e. a glass fiber composite lead wire is woven to form a mesh, so that lead wires with different wire diameters can be manufactured according to actual requirements, a lead mesh with any thickness can be theoretically woven to be used as a battery grid, and the battery grid is light in weight, corrosion resistant and free of lead dust pollution, as disclosed in patent CN 102751507A.

For lead mesh grids, there are currently two different manufacturing methods of weaving by shuttleless looms and weaving by shuttleless looms.

The action of weaving the lead net by using the shuttle loom is as follows: a, regularly opening and closing warps, wherein when the warps are opened, a weft shaft winding wefts is pulled by a shuttle box to pass through the first warp to the last warp in an opening area in a forward direction, and a semi-circular arc is formed at the first warp; b. the beating-up mechanism pushes the weft to the root of the opened angle of the warp, the warp is closed to clamp the weft, meanwhile, the net moves a weft interval required by design along the warp direction, and the weft in the shuttle box is reversed; c. the warp threads continue to move in the vertical direction and are opened again, the shuttle box reversely passes through the last warp thread in the opening area to the first warp thread, and a semicircular arc is formed at the last warp thread; d. the beating-up mechanism pushes the weft to the root of the opened angle of the warp, the warp is closed to clamp the weft, and the net moves along the warp direction by a weft interval required by design; e. repeating a-d until the weft thread in the shuttle box is used up, and replacing the new weft thread shaft.

As shown in figure 1, the lead net obtained by the weaving method of the shuttle loom has the advantages that the weight of the glass fiber composite lead wires is heavy, the adhesive force between the lead wires is large, the length of weft threads capable of being wound in a shuttle box is very limited, the shuttle needs to be frequently replaced, the efficiency is extremely low, and the waste caused by the residual weft threads of the shuttle every time is not small.

The action of weaving the lead net by the shuttleless loom is as follows: a, regularly opening and closing warps, wherein when the warps are opened, wefts are pulled to a rapier head cross connection area in the middle in a forward direction by a thread feeding rapier and are retained, meanwhile, a receiving rapier also moves to the rapier head cross connection area in a reverse direction, and after the rapier head of the receiving rapier clamps the wefts, the rapier head of the thread feeding rapier looses the wefts; b. the thread feeding rapier and the connecting rapier move reversely, exit from the connecting area and return to the original position, and the beating-up mechanism pushes the weft thread to the root of the opening angle of the warp thread; c. the rapier head of the receiving rapier looses the weft, the warp is closed to clamp the weft, and the weft is cut off at the same time; d. the net moves along the warp direction by a weft distance required by design; e. the warp continues to move in the original direction, the warp is opened again, the weft is clamped by the yarn feeding rapier again, and the a-d is repeated.

The lead net obtained by the weaving method of the shuttleless loom is shown in figure 2, the weft shaft of the method does not need to pass through a warp area, theoretically, the length can be infinite, the number of times of intermediate weft changing and stopping is small, and the efficiency is high.

However, in the above prior art, both the shuttle loom and the shuttleless loom are single weft weaving methods (for example, the warps and the wefts have the same fineness, or the warps and the wefts have the same fineness), and the lead mesh grid manufactured by the method has the following defects: the warp and weft are made of lead wires, and the lead consumption is large; the grid has no frame, so that the expansion of active substances cannot be limited in the charging and discharging processes of the battery, the contact short circuit of positive and negative active substances and the softening and falling of the positive active substance are easy to occur, and the service life of the battery is reduced; the grid has no pole lug, the bus bar needs to be prefabricated, and then the grid is welded with the weft lead wire to form the pole lug, so that the process is complex and the efficiency is low.

In conclusion, the current lead net preparation methods have obvious defects to be further improved.

[ summary of the invention ]

Aiming at the defects in the prior art, the invention provides the lead net for the lead storage battery, which has the advantages that the lead consumption is low, the grid is provided with the frame, the expansion of active substances can be limited in the charging and discharging processes of the battery, the contact short circuit of positive and negative active substances and the softening and falling of the positive active substance are not easy to occur, the service life of the battery is prolonged, and the grid is provided with the lugs without prefabricating a busbar.

In order to solve the technical problems, the invention adopts the technical scheme that: a lead mesh grid for a lead storage battery comprises a grid body woven by warps and wefts, wherein the grid body at least comprises an independent grid; forming thick plastic weft frames along two sides of the independent grid weft direction; and thick lead wire wefts are arranged between the thick plastic weft frames.

Furthermore, fine plastic wefts are arranged between the thick lead wire wefts;

further, forming thick plastic warp frames along two sides of the warp direction of the independent grid; and thin plastic warps are arranged between the coarse plastic warp frames.

Further, the diameter of the thick plastic weft is larger than that of the thick lead wire weft, and the diameter of the thick lead wire weft is larger than that of the thin plastic weft.

Further, the thick lead wire weft consists of a glass fiber lead wire core wire and an alloy coated on the glass fiber lead wire core wire;

further, the fine plastic silk weft is made of PP plastic.

Further, the independent grid forms a lead belt along the warp direction, and the lead belt and the thick lead wire weft are integrated.

Further, the independent grids are woven into the lead belts along the warp direction.

Further, the lead belt and the lead bullion weft are integrated through brazing.

Further, the grid body at least comprises two independent grids, a lead belt is formed between the two independent grids along the warp direction, and the lead belt and the thick lead wire weft of the two independent grids are integrated.

Further, the pole plate is made of a lead mesh grid.

Further, a lead-acid battery is prepared from the polar plate.

The invention also provides a preparation method of the lead mesh grid for the lead storage battery, which comprises the following steps:

(1) the warp is a plastic wire or a combination of the plastic wire and a composite lead wire and a lead belt, and the warp is arranged according to the following rule: the lead belt is positioned in the middle of the lead net, the boundary of the lead net coating area is stranded by using a thick plastic wire or a plurality of thin plastic wires or hot melt wires to form an upper frame and a lower frame, and warps in the range of the upper frame and the lower frame are thin plastic wires or thin lead wires;

(2) basic weaving action: the warp threads are opened and closed up and down according to a fixed frequency, when the warp threads are opened, the weft insertion rapier clamps a weft thread head to move in a warp thread opening area, the weft receiving rapier and the weft insertion rapier move oppositely, the two rapier reach a weft thread connection position, the weft insertion rapier releases the weft threads, the weft insertion rapier clamps the weft threads to complete weft thread connection, then the weft insertion rapier returns to a machine head, the weft insertion rapier pulls the weft threads to pass through the warp thread area, the weft thread is horizontally pushed to the root of a warp thread opening angle by a beating-up mechanism, and then the warp threads are crossed and closed to clamp the weft threads; meanwhile, the weft receiving rapier loosens the weft, the shearing device at the machine head cuts off the weft, the weft sending rapier clamps the weft head, the lead net moves a weft interval with a design requirement along the warp direction, the warp continues to move up and down, and is opened again to prepare for the next weft sending;

(3) weft arrangement sequence: the weft is the combination of thick lead wire and plastic wire or thin lead wire, and adjacent weft centre-to-centre spacing is equal, and the interval is 2 ~ 10mm, and different weft let-off mechanisms are released to the weft insertion district by different weft let-off mechanisms and are supplied the weft insertion rapier to get, and its action sequence of different weft let-off mechanisms is by the program control who sets for, in order to realize: the broken boundary wefts of adjacent polar plates in the lead mesh coating area form a left frame and a right frame by using thick plastic wires or lead wires, the wefts in the frame range are thick lead wires and plastic wires or thick lead wires and thin lead wires, and a plurality of plastic wires or thin lead wires are arranged between two adjacent thick lead wires.

The preparation method of the lead mesh grid for the lead storage battery further comprises the following preparation steps of (4) preparing a tab: the middle of two adjacent independent grids is provided with a lead belt (the lead belt extends along the warp direction), the weft and the lead belt are overlapped in a staggered mode, and the weft and the lead belt are welded into a whole in the modes of laser welding, brazing, resistance welding, spot welding and wave-soldering, so that the lead belt becomes a tab for the current of the grids to enter and exit.

The invention has the following beneficial effects:

1. most of the warps and wefts of the lead mesh grid are made of plastic wires instead of lead wires, so that the lead consumption is greatly reduced, the weight of the grid is reduced, and the cost is reduced.

2. The lead mesh grid forms a grid frame by adjusting the thickness of the warps and the wefts, so that the contact short circuit caused by the expansion of positive and negative active substances is limited, the softening and falling of the positive active substances are delayed, and the service life of a battery is prolonged; the grid frame does not need to be additionally prepared or installed, only thick warps and wefts need to be arranged at the broken boundaries of the adjacent independent grids in the lead mesh coating area, and each independent grid is divided into a plurality of thick wefts (playing a reinforcing role) which are arranged at intervals in the frames at two sides, so that the thick frames and the middle reinforcing ribs are formed, the integral strength of the grid is improved, and the grid is not easy to deform; and the fabric is directly woven to form a complete whole, and the preparation process is simplified.

3. The lead mesh grid is woven with the lead belt during weaving, and the lead belt and the lead wire weft are welded into a whole during weaving to form the tab of the grid, so that the operation is simple and the efficiency is high.

4. The diameter of a thick line such as a thick plastic wire, a thick lead wire or a thick plastic wire is preferably more than 1mm, and the diameter of a thin line such as a thin lead wire, a plastic wire or a plastic tape is preferably less than 0.6 mm; the limitation of the specification can well realize the effects of frame effect and integral strength enhancement, so that the limitation of contact short circuit caused by the expansion of positive and negative active substances is facilitated, the softening and falling of the positive active substances are delayed, and the service life of the battery is prolonged; but also can well reduce the weight of the integral grid or polar plate and does not influence the integral performance of the battery.

5. In the preparation process of the lead mesh grid, the lead mesh grid is woven by a shuttleless loom, so that the shuttle does not need to be frequently replaced, and the production efficiency is obviously improved.

[ description of the drawings ]

Fig. 1 is a schematic structural view of a lead mesh grid woven by a conventional shuttle loom;

FIG. 2 is a schematic structural diagram of a lead mesh grid woven by a conventional shuttleless loom;

fig. 3 is a schematic structural view of a lead mesh grid according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a lead mesh grid according to embodiment 2 or 3 of the present invention;

fig. 5 is a schematic structural diagram of a front view of a plate manufactured by a lead mesh grid according to an embodiment of the invention;

fig. 6 is a schematic structural diagram of a side view of a plate manufactured by a lead mesh grid according to an embodiment of the invention;

as shown in the figure: 1. a thick lead wire weft; 2. coarse plastic silk weft; 3. fine plastic wire weft; 4. binding the plastic thread warp; 5. fine plastic filament warp threads; 6, lead strips; 7. a polar plate body, 8. a polar lug.

[ detailed description ] embodiments

The present invention will be described in further detail below with reference to the accompanying drawings, but the present invention is not limited to the following embodiments.

The directions shown in fig. 3 are taken as the upper, lower, left and right of the present invention, that is, the direction parallel to the extending direction of the weft is the left and right, and the direction perpendicular to the weft is the upper and lower.

The lead screen coating area is the area of each independent grid which needs to be coated with lead paste to prepare the polar plate.

The lead mesh grid is a large grid body in the weaving process, according to the size requirement of the independent grid, the specific large grid body contains a plurality of independent grids (each independent grid can be provided with reasonable weft and warp number, thickness, spacing and the like according to the size requirement of each grid) which are connected with each other according to the weaving sequence, and a frame formed by the warp and the weft is arranged on the broken boundary of the adjacent independent grid/pole plate; the first frame starting in the weft or warp direction is not provided with an adjacent grid frame, so that the first frame is an independent frame, and an adjacent disjointed boundary and an adjacent frame can exist in the middle; in addition, if lead bands are introduced into the grids, the frame lines in the warp direction of two adjacent grids are spaced, and the lead bands are placed between adjacent frames of two adjacent independent grids and extend along the warp direction.

The following examples are given for 6-DZM-20 cells