阅读说明：本技术 一种用于研究金属基水系电池的模具 (Mold for researching metal-based water-based battery ) 是由 钟澄 张东皓 胡文彬 于 2019-10-12 设计创作，主要内容包括：本发明提供一种用于研究金属基水系电池的模具,涉及能源器件技术领域；包括支撑板、第二电极、电解池、第一电极、盖板、紧固件,电解池中部开设有第一通孔,电解池外周侧开设有取样孔,便于试验中和试验后对电介质的提取、测量和研究,达到近似原位测量的目的；设置密封环与密封槽相配合,提高了电池密封性,避免多孔金属电极直接作为第二电极时第二电极一侧有CO<Sub>2</Sub>进入电解仓,导致电解质溶液碳酸化；支撑板开设放置槽、限位槽,放置槽内设有抵触片、弹性件,抵触片上设置限位块,将待测多孔金属电极置于放置槽内时,第二电极上开设第二通孔,保证电解质在电解仓内的离子交换不受阻碍；还可以对多孔金属电极和致密电极比较测试,减少试验变量。(The invention provides a die for researching a metal-based water-based battery, and relates to the technical field of energy devices; the device comprises a supporting plate, a second electrode, an electrolytic cell, a first electrode, a cover plate and a fastener, wherein a first through hole is formed in the middle of the electrolytic cell, and a sampling hole is formed in the outer peripheral side of the electrolytic cell, so that the device is convenient for extraction, measurement and research of a dielectric medium in a test and after the test, and the purpose of approximate in-situ measurement is achieved; the sealing ring is arranged to be matched with the sealing groove, so that the sealing property of the battery is improved, and CO is prevented from being arranged on one side of the second electrode when the porous metal electrode is directly used as the second electrode 2 Entering an electrolysis chamber to cause the electrolyte solution to carbonate; the supporting plate is provided with a placing groove and a limiting groove, and the placing groove is internally provided with a contact sheet, an elastic piece and a contact sheetThe limiting block is arranged on the electrolytic cell, and when the porous metal electrode to be detected is placed in the placing groove, the second through hole is formed in the second electrode, so that the ion exchange of electrolyte in the electrolytic cell is not hindered; and the porous metal electrode and the compact electrode can be compared and tested, so that the test variables are reduced.)

1. A mold for studying a metal-based aqueous battery, characterized in that: the device comprises a cover plate (5), a support plate (1) and a fastener (6), wherein the fastener (6) is used for limiting the distance between the support plate (1) and the cover plate (5); at least one first electrode (4), at least one electrolytic cell (3) and at least one second electrode (2) are arranged between the cover plate (5) and the support plate (1), and a first through hole (7) is formed in the middle of the electrolytic cell (3) along the height direction of the electrolytic cell;

the adjacent first electrodes (4) are abutted with the electrolytic cell (3), and the adjacent first electrodes (4) are abutted with the cover plate (5); the adjacent second electrodes (2) are abutted with the supporting plate (1), and the adjacent second electrodes (2) are abutted with the electrolytic cell (3);

a plurality of sampling holes (8) are formed in the outer peripheral side of the electrolytic cell (3), and the sampling holes (8) are communicated with the first through hole (7); and a sealing plug (9) is arranged on the peripheral side of the electrolytic cell (3), and the sealing plug (9) is in plug-in fit with the sampling hole (8).

2. The mold for studying a metal-based aqueous battery according to claim 1, characterized in that: one side, close to the cover plate (5), of the support plate (1) is provided with a placing groove (10), the second electrode (2) adjacent to the support plate (1) is provided with a second through hole (11), the projection of the second through hole (11) in the height direction of the electrolytic cell (3) is located on the inner side of the first through hole (7), and a porous metal electrode (12) is arranged in the placing groove (10).

3. The mold for studying a metal-based aqueous battery according to claim 2, characterized in that: the novel solar cell is characterized in that a contact supporting piece (13) is arranged in the placing groove (10), an elastic piece (14) is arranged between the bottom of the placing groove (10) and the contact supporting piece (13), when elastic potential energy stored by the elastic piece (14) is zero, the upper surface of the contact supporting piece (13) and the upper surface of the supporting plate (1) are located on the same plane, and the contact supporting piece (13) and the elastic piece (14) are made of alkali-resistant insulating materials or coated with alkali-resistant insulating layers.

4. The mold for studying a metal-based aqueous battery according to claim 3, characterized in that: a plurality of limiting grooves (15) are formed in the inner peripheral side of the placing groove (10) along the height direction of the placing groove, and limiting blocks (16) in sliding connection with the limiting grooves (15) are arranged on the outer peripheral side of the contact piece (13).

5. The mold for studying a metal-based aqueous battery according to claim 1, characterized in that: the upper surface and the lower surface of the electrolytic cell (3) are respectively provided with an annular sealing groove (17); be provided with sealing ring (18) in seal groove (17), seal groove (17) are located first through-hole (7) outside along electrolysis trough (3) ascending projection in height direction, the height that highly is greater than seal groove (17) of sealing ring (18).

6. The mold for studying a metal-based aqueous battery according to claim 1, characterized in that: annular seal groove (17) have been seted up respectively to the upper surface of backup pad (1) and the lower surface of apron (5), be provided with sealing ring (18) in seal groove (17), the projection of seal groove (17) along electrolytic bath (3) direction of height is located the first through-hole (7) outside, the height that highly is greater than seal groove (17) of sealing ring (18).

7. The mold for studying a metal-based aqueous battery according to claim 1, characterized in that: the number of the sampling holes (8) is three, and the three sampling holes (8) are sequentially arranged along the height direction of the electrolytic cell (3); the sampling hole (8) in the middle part is equidistant from the upper surface and the lower surface of the electrolytic cell (3).

8. The mold for studying a metal-based aqueous battery according to claim 1, characterized in that: and the first electrode (4) and at least one group of combined modules consisting of an electrolytic cell (3) and a second electrode (2) are sequentially arranged between the cover plate (5) and the support plate (1) from the cover plate (5) to the support plate (1).

9. The mold for studying a metal-based aqueous battery according to claim 8, characterized in that: a third electrode (19) is arranged in the first through hole (7), a lead is arranged on the third electrode (19) and is exposed to the outer peripheral side of the electrolytic cell (3) through the sampling hole (8), and the third electrode (19) is made of porous metal.

10. The mold for studying a metal-based aqueous battery according to claim 1, characterized in that: the fastening piece (6) comprises a plurality of bolts (20), nuts (21) and gaskets (22) which are matched with one another, a plurality of first positioning holes (23) are formed in the supporting plate (1) along the height direction of the supporting plate, a plurality of second positioning holes (24) are formed in the electrolytic cell (3) along the height direction of the electrolytic cell, a plurality of third positioning holes (25) are formed in the cover plate (5) along the height direction of the cover plate, and the bolts (20), the nuts (21), the gaskets (22), the first positioning holes (23), the second positioning holes (24) and the third positioning holes (25) are equal in number and correspond to one another; one end, close to the nut (21), of the bolt (20) is an inserting end, one section, far away from the nut (21), of the bolt (20) is a fixed end, the inserting end of the bolt (20) is in inserting fit with the first positioning hole (23), the second positioning hole (24) and the third positioning hole (25), and the gasket (22) is located between the fixed end of the bolt (20) and the cover plate (5); and a sealing cover (26) is arranged at one end of the sealing plug (9) far away from the electrolytic cell (3), and the sealing plug (9) and the sealing cover (26) are provided with a test hole along the central axis thereof.

Technical Field

The invention relates to the technical field of energy devices, in particular to a die for researching a metal-based water-based battery.

Background

Along with the development of global economy, environmental pollution and energy exhaustion are becoming more serious. The development of renewable energy and energy conversion storage technologies is of great importance. Higher theoretical specific energy density of metal-air battery (for example: theoretical specific energy density of zinc-air battery: 1086Wh kg)^-1) And low price and environmental friendliness, etc. are widely paid attention. A conventional metal-air battery consists of a second electrode, an electrolyte and a first electrode.

In the test, the battery mold is usually used for assembling the battery to carry out related test research. However, chemical components of the electrolyte and physical properties such as pH, density, uniformity, etc. are changed during the charge and discharge of the battery. In order to better perform accurate measurement of the relevant variations, it is necessary to extract and measure the physicochemical properties of the electrolyte at different positions (near the second electrode side, near the first electrode side, in the middle of the electrolyte, and the like).

Disclosure of Invention

In view of the drawbacks of the prior art, it is an object of the present invention to provide a mold for studying a metal-based aqueous battery.

In order to achieve the purpose, the invention provides the following technical scheme: a mold for researching a metal-based water-based battery comprises a cover plate, a support plate and a fastener, wherein the fastener is used for limiting the distance between the support plate and the cover plate; at least one first electrode, at least one electrolytic cell and at least one second electrode are arranged between the cover plate and the support plate, and a first through hole is formed in the middle of the electrolytic cell along the height direction of the electrolytic cell; the adjacent first electrodes are abutted with the electrolytic cell, and the adjacent first electrodes are abutted with the cover plate; the adjacent second electrodes are abutted with the supporting plate, and the adjacent second electrodes are abutted with the electrolytic cell; a plurality of sampling holes are formed in the outer peripheral side of the electrolytic cell and communicated with the first through hole; and a sealing plug is arranged on the peripheral side of the electrolytic cell and is in plug-in fit with the sampling hole.

Through adopting above-mentioned technical scheme, backup pad, second electrode, electrolytic bath, first electrode, apron pass through the fastener in order and connect, ensure that the second electrode covers the first through-hole of adjacent electrolytic bath completely, first electrode covers the first through-hole of adjacent electrolytic bath completely, fill up the electrolyte in to the electrolysis storehouse through the sample hole, later with the cooperation of pegging graft of closing plug and sample hole, this structure equipment is simple and convenient, be convenient for in the experiment and after the experiment to extraction, measurement and research of dielectric.

The invention is further configured to: a placing groove is formed in one side, close to the cover plate, of the supporting plate, a second through hole is formed in the second electrode, the second through hole is adjacent to the supporting plate, the second through hole is located on the inner side of the first through hole along the projection of the second through hole in the height direction of the electrolytic cell, and a porous metal electrode is arranged in the placing groove.

By adopting the technical scheme, the porous metal electrode is placed in the placing groove, the insulator can be placed in the placing groove to ensure that the porous metal electrode is abutted against the second electrode, the second electrode can be made of copper materials, silver materials, platinum materials or the like, and the electrolyte enters the placing groove through the second through hole of the second electrode to be in contact with the porous metal electrode; avoiding electrolyte leakage or CO in the air when the porous metal electrode is used as the second electrode₂Enters the electrolytic bin to be contacted with the electrolyte to carbonate the electrolyte.

The invention is further configured to: the anti-contact piece is arranged in the placing groove, the elastic piece is arranged between the bottom of the placing groove and the abutting piece, when elastic potential energy stored by the elastic piece is zero, the upper surface of the anti-contact piece and the upper surface of the supporting plate are located on the same plane, and the anti-contact piece and the elastic piece are made of alkali-resistant insulating materials or coated with alkali-resistant insulating layers.

Through adopting above-mentioned technical scheme, the conflict piece receives the elasticity of elastic component to give the porous metal electrode in the standing groove and keeps away from the power of tank bottom, makes porous metal electrode and the better butt of second electrode, avoids not finding the insulator of suitable height and makes porous metal electrode and second electrode inconsistent.

The invention is further configured to: a plurality of limiting grooves are formed in the inner peripheral side of the placing groove along the height direction of the placing groove, and limiting blocks in sliding connection with the limiting grooves are arranged on the outer peripheral side of the contact piece.

Through adopting above-mentioned technical scheme, through the limiting displacement of spacing groove to the stopper, make the conflict piece can only follow the spacing groove motion in the standing groove, avoid the conflict piece to break away from the standing groove.

The invention is further configured to: the upper surface and the lower surface of the electrolytic cell are respectively provided with an annular sealing groove; the sealing groove is internally provided with a sealing ring, the projection of the sealing groove in the height direction of the electrolytic cell is positioned outside the first through hole, and the height of the sealing ring is greater than that of the sealing groove.

The invention is further configured to: annular seal grooves are formed in the upper surface of the supporting plate and the lower surface of the cover plate respectively, seal rings are arranged in the seal grooves, the projection of the seal grooves in the height direction of the electrolytic cell is located on the outer side of the first through hole, and the height of each seal ring is larger than that of each seal groove.

By adopting the technical scheme, the sealing performance of the metal-based water-based battery mould is improved, the problems of electrolyte dehydration, crystallization and precipitation of solutes such as potassium hydroxide and the like caused by liquid leakage of liquid electrolyte are avoided, and the problems that the conductivity of the electrolyte is rapidly reduced, so that the working time and the cycle life of the battery are greatly reduced, and the accuracy of a test result is influenced are avoided; the soft sealing ring is compressed by force, so that the contact area between the upper surface and the lower surface of the soft sealing ring and other parts is increased, and the sealing performance of the die is further enhanced.

The invention is further configured to: the number of the sampling holes is three, and the three sampling holes are sequentially arranged along the height direction of the electrolytic cell; the sampling hole in the middle part is equidistant from the upper surface and the lower surface of the electrolytic cell.

By adopting the technical scheme, the extraction, measurement and research of the dielectric medium are respectively convenient for the upper part, the middle part and the lower part of the electrolytic bin during and after the test, and the change of the electrolyte of the battery in the working process is more convenient to explore.

The invention is further configured to: and the first electrode and at least one group of combined modules consisting of an electrolytic cell and a second electrode are sequentially arranged between the cover plate and the support plate from the cover plate to the support plate.

Through adopting above-mentioned technical scheme, be convenient for assemble the structure of the series connection of a plurality of batteries of test.

The invention is further configured to: and a third electrode is arranged in the first through hole, a lead is arranged on the third electrode and is exposed to the outer peripheral side of the electrolytic cell through the sampling hole, and the third electrode is made of porous metal.

By adopting the technical scheme, the first electrode and the second electrode are used as cathodes, and the third electrode is used as an anode, so that the mass ratio of the anode to the cathode to the catalyst can be conveniently adjusted.

The invention is further configured to: the fastening piece comprises a plurality of bolts, nuts and gaskets which are matched with each other, a plurality of first positioning holes are formed in the supporting plate along the height direction of the supporting plate, a plurality of second positioning holes are formed in the electrolytic cell along the height direction of the electrolytic cell, a plurality of third positioning holes are formed in the cover plate along the height direction of the cover plate, and the bolts, the nuts, the gaskets, the first positioning holes, the second positioning holes and the third positioning holes are equal in number and correspond to one another; the end, close to the nut, of the bolt is an inserting end, the section, far away from the nut, of the bolt is a fixed end, the inserting end of the bolt is in inserting fit with the first positioning hole, the second positioning hole and the third positioning hole, and the gasket is located between the fixed end of the bolt and the cover plate; and a sealing cover is arranged at one end of the sealing plug, which is far away from the electrolytic cell, and a test hole is formed in the sealing plug and the sealing cover along the central axis of the sealing plug and the sealing cover.

By adopting the technical scheme, one end of the bolt close to the nut is in plug fit with the first positioning hole, the second positioning hole and the third positioning hole, and the nut is matched and fastened with the bolt, so that mutually close acting force is applied to the cover plate and the support plate through the bolt and the nut, the contact area between the sealing ring and other parts of the die of the metal-based water-based battery is increased, and the sealing performance of the die of the metal-based water-based battery is further enhanced; by adopting the technical scheme, the sealing plug is convenient to apply acting force to the sealing plug through the sealing cover to separate from the sampling hole when electrolyte is injected, and the sealing plug is respectively in plug-in fit with the corresponding sampling hole by applying acting force to the sealing plug after the electrolyte is injected; the probe of the electronic pH meter can be conveniently inserted into the electrolyte solution through the test hole by arranging the test hole, the pH value is output during the test, the pH change of the electrolyte solution in the battery standing state and the charging and discharging state can be analyzed according to the change quantity of the value and the value, and relevant analysis discussion is developed based on the change quantity.

Compared with the prior art, the invention has the following beneficial effects:

(1) a mould for studying metal-based water-based battery comprises a supporting plate, a second electrode, an electrolytic cell, a first electrode, a cover plate and a fastener, wherein a first through hole is formed in the middle of the electrolytic cell, a plurality of sampling holes are formed in the peripheral side of the electrolytic cell, so that the extraction, measurement and study of dielectric media on the upper part, the middle part and the lower part of the electrolytic cell during and after a test are facilitated, the change of the electrolyte in the working process of the battery is facilitated to be explored, and the purpose of approximate in-situ measurement is achieved;

(2) the sealing ring is matched with the sealing groove, so that the sealing performance of the battery is improved, the acting force which is close to each other is applied to the cover plate and the supporting plate through the fastening piece, the contact area of the sealing ring and other parts of the metal-based water-based battery mould is increased, the sealing performance of the metal-based water-based battery mould is further enhanced, and one side of the second electrode is prevented from having CO when the porous metal electrode is directly used as the second electrode₂Entering an electrolysis chamber to cause the electrolyte solution to carbonate; the assembly is convenient, does not need to have sealed embedding, does not need higher level to aim at, and the electrode only needs to cover the opening of electrolysis storehouse, just can seal completely after the fastening, and through many times of experimental verification, the weeping does not take place in 30 days after the equipment.

(3) The placing groove is formed in the supporting plate, the contact piece and the elastic piece are arranged in the placing groove, the limiting groove is formed in the inner peripheral side of the placing groove, the limiting block is arranged on the outer peripheral side of the contact piece, when the porous metal electrode is tested, the porous metal electrode is placed in the placing groove, at the moment, the second through hole is formed in the second electrode, the porous metal electrode is conveniently placed in the placing groove, the elastic piece and the contact piece enable the porous metal electrode to be in good contact with the second electrode, and the fact that ion exchange of electrolyte in the electrolytic bin is not hindered is guaranteed as far as possible; the invention can also directly carry out comparison analysis, and the comparison test of the electrode made of the porous metal material and the compact electrode, and reduces the variable of the comparison test by using the same set of mould;

(4) a first electrode and a plurality of groups of combined modules consisting of an electrolytic cell and a second electrode are arranged between the cover plate and the support plate; the research on the series connection condition of different batteries or the same battery is facilitated;

(5) through set up the third electrode in first through-hole, be provided with the lead wire on the third electrode and expose at the electrolysis trough periphery side through the thief hole, the third electrode material is porous metal material, and first electrode second electrode is the negative pole, and the third electrode is as the positive pole, is convenient for adjust the mass ratio of positive pole and negative pole and catalyst.

(6) The problem that the compact second electrode is easy to form dendrite in the charging and discharging process, so that the reaction is terminated and even short circuit is caused is solved, and the service life of the battery is prolonged.

Drawings

Fig. 1 is a schematic view of the external structure of a mold for studying a metal-based aqueous battery in example 1;

fig. 2 is a schematic view of an explosion structure of a mold for investigating a metal-based aqueous battery in example 1 to show a first through hole;

fig. 3 is a schematic view of the mold for researching a metal-based aqueous battery in example 1 to show the exploded structure of the positioning post;

fig. 4 is an exploded view of the support plate and the second electrode of the mold for studying a metal-based aqueous battery in example 2;

FIG. 5 is a schematic view of a partial cross-sectional structure of a mold for investigating a metal-based aqueous battery in examples 3 to 4 for a third electrode;

reference numerals: 1. a support plate; 2. a second electrode; 3. an electrolytic cell; 4. a first electrode; 5. a cover plate; 6. a fastener; 7. a first through hole; 8. a sampling hole; 9. a closing plug; 10. a placement groove; 11. a second through hole; 12. a porous metal electrode; 13. a contact piece is abutted; 14. an elastic member; 15. a limiting groove; 16. a limiting block; 17. a sealing groove; 18. a seal ring; 19. a third electrode; 20. a bolt; 21. a nut; 22. a gasket; 23. a first positioning hole; 24. a second positioning hole; 25. a third positioning hole; 26. and (6) closing the cover.

Detailed Description

The present example is intended to provide a mold for studying a metal-based aqueous battery. The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.