CN2548268Y - Alkaline accumulator - Google Patents
Alkaline accumulator Download PDFInfo
- Publication number
- CN2548268Y CN2548268Y CN02220883U CN02220883U CN2548268Y CN 2548268 Y CN2548268 Y CN 2548268Y CN 02220883 U CN02220883 U CN 02220883U CN 02220883 U CN02220883 U CN 02220883U CN 2548268 Y CN2548268 Y CN 2548268Y
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- CN
- China
- Prior art keywords
- plate
- positive
- negative
- positive plate
- negative plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses an alkaline storage battery with a plurality of draining columns for heat transfer and drainage. A diaphragm of the battery is disposed between the positive plate and the negative plate, the positive and the negative plates are in parallel overlapping, and pole columns are disposed at both sides. The positive plate and the negative plate are staggered, a lateral side of the positive plate of one side extends out, while the lateral side of the negative plate of the opposite side extends out, therefore forming a positive plate confluence group and a negative plate confluence group. The overlapping region of the positive plate and the negative plate is coated with active material, and the gap staggered by the region without coating active material of the positive plate and the negative plate is used as the draining channel. The staggered positive plate by the region without coating active material is the positive plate confluence group, while the staggered negative plate by the region without coating active material is the negative plate confluence group. The region of the positive plate confluence group and the negative plate confluence group is provided with a pore for heat transfer, and a tube for drainage and heat transfer is arranged in the pore. The diaphragm is a diaphragm bag; the place, where the active material is coated, of the positive plate is encapsulated by the diaphragm bag, and the region without coating the active material of the positive and the negative plates is encapsulated by polymeric insulating material.
Description
Affiliated field
The utility model relates to the alkaline battery that a kind of many drainages post carries out the heat exchange drainage.
Background technology is in order to satisfy operating voltage, the capacity requirement of EV or HEV battery modules, need a n shown in Figure 4 cell is combined into battery modules, the relative cooperation mutually of the broad side surface of the wider width of its battery housing, and the narrow side that the width of battery housing is narrower cooperatively interacts into a plane, separate with aluminium radiating fin or other materials between the broad side surface, 2 the battery broad side surfaces of outermost surface and the narrow side of all batteries clamp and are integral with metal tape.
Constituting of cell is equipped with the positive/negative plate group of confluxing in the battery housing, barrier film, electrolyte, on be covered with the safety valve sealing.Drainage thread constitutes from conflux group's the limit, upper end of each positive plate one side of positive/negative plate and upwards draws the drainage sheet, and its drainage sheet top connects positive electrode drainage post.Equally, upwards draw the drainage sheet from the limit, upper end of each negative plate one side, its drainage sheet top connects negative electrode drainage post.
The positive electrode drainage post of each cell of sealing and negative electrode drainage post adopt the nut series connection by striding pole piece, clamp with metal tape at battery housing broad side surface and the narrow side of all series-connected cells, the aluminium radiating fin forms heat dissipation channel between battery housing broad side surface, so that above-below direction forms heat exchanging medium passage, come each cell of heat exchange by cold wind.
But, in the structure of above-mentioned battery, be that each pole plate is confluxed group's the electronics of electrochemical reaction by conflux group's the drainage sheet of upper end of pole plate of each pole plate.Lead to pole.Because this kind drainage way is longer from pole plate whole the distance to the drainage sheet of group of confluxing, and causes the internal resistance of cell to increase, and the electric current distribution inequality, active material utilization is poor, thereby power output is low.In addition, because the internal resistance of cell increases, cause temperature rise speed to improve, the temperature difference aggravation between the pole plate makes that some active material produces phase transformation, oxidation in advance in the battery, finally causes battery to lose efficacy in advance.
Summary of the invention
The utility model provides a kind of alkaline battery, and it effectively reduces the internal resistance of battery and improves the power output of battery, simultaneously in built-up type secondary battery, the temperature homogeneity of each cell is improved, and effectively improves battery pack useful life.
Mainly be provided with electrolyte in its battery case of the utility model, the multi-disc positive plate, multi-disc negative plate and barrier film, barrier film is between positive plate and negative plate, positive plate and negative plate parallel shape are overlapping, it is characterized in that pole is in both sides, positive plate and negative plate stagger, promptly Yi Bian positive plate side stretches out, the negative plate side of opposite edge stretches out, form positive plate group and the negative plate group of confluxing of confluxing, the overlapping region of positive plate and negative plate applies active material, space after staggering in the zone of positive plate and the uncoated active material of negative plate is a drainage channel, the zone of uncoated active material stagger positive plate be the positive plate group of confluxing, the zone of uncoated active material stagger negative plate be the negative plate group of confluxing, conflux group and the negative plate group zone of confluxing of positive plate is provided with the heat exchange pore, be provided with the drainage heat exchanger tube in the heat exchange pore, barrier film is a diaphragm bag, the position that positive plate applies active material is coated by diaphragm bag, and the area surface of the uncoated active material of positive plate and negative plate is wrapped up with insulating polymeric material.Positive plate group and the negative plate group zone of confluxing of confluxing respectively is provided with one and the corresponding Contraband shape baffler that is of its size, baffler is being provided with the heat exchange pore with the pole plate same position, its termination flange of boss hole that the drainage heat exchanger tube passes battery container is enlarging, seal, baffler, pole plate conflux the group, the riveting pipe passed by the drainage heat exchanger tube, the drainage heat exchanger tube makes conflux group, riveting pipe and battery container of seal, baffler, pole plate be bonding state closely by the machinery mode of the pipe body that expands that rises.
The positive plate of positive plate one side group and the negative plate of the negative plate one side group zone of confluxing of confluxing respectively is provided with one and the corresponding Contraband shape baffler that is of its size, and baffler is being provided with the heat exchange pore with the pole plate same position.The area of positive/negative plate can be unequal, and the region surface area that positive plate applies active material exists relation, Δ S=S
Negative-S
Just=0--2000mm
2Or S
Just=aS
Negative0＜a＜1; The upper and lower side that negative plate applies the zone of active material is higher than positive plate, and positive plate and negative plate apply the regional wide not contour of active material, and positive plate and negative plate are wide, contour.Be provided with the sealing of thermoelasticity O type between the boss hole wall of seal and battery container.Each cell contains positive and negative terminals more than 3 pairs at least, and the positive and negative terminals on the positive/negative plate is the drainage heat exchanger tube, and during each cell combination, its drainage heat exchanger tube is connected, and is provided with heat transferring medium in the drainage heat exchanger tube.The positive and negative pole plate of the utility model in uncoated active material zone confluxes to mine massively and is riveted on the mode of drainage strip with perforation, make the pole plate group of confluxing compact, do not produce distortion, the electronics that produces by electrochemical reaction can arrive pole rapidly, electrochemical reaction active material response area reaches higher, increases the energy of battery.Wear the wall pipe and pass in the hole of riveting pipe, behind the mechanical expanding, make pole plate conflux group, drainage strip, wear wall pipe, battery container and form one, like this can be closely fixing reliably with 4.It is unequal that both positive and negative polarity applies the active material region area, and negative pole applies the active material upper end and is higher than the anodal active material upper end that applies, and both positive and negative polarity applies the active material region surface and accumulates in Δ S=S
Negative-S
Just=0-2000m
2Or S
Just=aS
Negative0＜a＜1, both positive and negative polarity is wide isometric, and the coating active material is regional wide not isometric, help solving the inner pressuring sealing of battery like this, the gas that produces needn't transmit with electrolyte mutually by barrier film, and can directly be diffused into negative pole, the solid phase surface that is higher than anodal active material zone at negative pole directly carries out compound, and enough gas recombination spaces promptly are provided, and has increased the particle number of gas phase compound (catalysis) reaction again greatly, thereby improved the gas recombination ability, quickened gas recombination speed, the interior pressure of battery is reduced greatly, avoided causing the battery temperature rise to be quickened because of interior voltage rise is high, battery capacity descends, avoided interior pressure too high, caused the overfrequency of safety valve to open, gassing is frequent, battery shifts to an earlier date failure phenomenon, has improved each cell life-span consistency.Positive/negative plate is wide, contour and to apply the active material zone wide not contour, and positive plate top is not coated with active material and partly adopts insulating polymeric material to coat can to avoid the burr at positive/negative plate edge overlapped.Not only reduced the probability that battery is short-circuited in the initial loading timing, and also reduced battery and in charge and discharge cycles, cause short circuit probability because of electrode expansion mutual extrusion causes burr to penetrate barrier film.Wear wall expand tube flow guiding structure, by the forced heat-exchanging of medium at inside battery, electric reaction heat and ohm heat when taking out of owing to battery charging and discharging, medium is inner mobile fast at each cell, the temperature consistency of each cell is stablized, thereby avoided each cell temperature contrast, particularly avoided cell electrochemical reaction heat and ohm heat to be passed to the difficult problem of the heat conduction velocity difference of battery container from pole piece.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified
Fig. 1 is a structure chart of the present utility model
Fig. 2 is the utility model flow guiding structure cutaway view and hermetically-sealed construction cutaway view
Fig. 3 is the utility model battery combination schematic diagram
Fig. 4 is the comparative example structure chart
Embodiment
According to Fig. 1, shown in Figure 2, positive plate is made of foaming metal nickel, positive plate drainage portion (7) is made of by compressing the back and be welded with the foaming metal nickel that is compressed attenuate on its one side foaming metal nickel, negative plate is made of foaming metal nickel or Ni perforated metal, negative plate drainage portion (8) is made of by compressing the back and welding thereon by the foaming metal nickel that is compressed attenuate foaming metal nickel, regional active material coating zone beyond the drainage portion of positive plate and negative plate, positive plate drainage portion (7) and negative plate drainage portion (8) are coated by insulating polymeric material.
Battery container (1) is long and wide proportional, mainly is provided with electrolyte, multi-disc positive plate, multi-disc negative plate and barrier film in the battery case (1), and outermost pole plate is a negative plate, and promptly negative plate is counted than the elected a slice that manys of the splendid achnatherum plate of cheers.Positive plate active material coating zone is coated by the diaphragm bag that a public side is provided with outlet, compares like this with at the barrier film that clamps continuous bending between positive plate and the negative plate, more helps the battery process assembling.Positive plate, negative plate be parallel shape overlapping and the part stagger, promptly Yi Bian positive plate side stretches out, the negative plate side of opposite edge stretches out, the positive plate extension is that positive plate drainage portion (7) forms the positive plate group of confluxing, the negative plate extension is that the zone of the uncoated active material of negative plate drainage portion (8) forms the negative plate group of confluxing, conflux group and negative plate of positive plate confluxes and respectively is provided with four location holes that pole piece can be located that separated respectively by three heat exchange pores on the group, the relevant position also is provided with location hole on the baffler, location hole with the riveting pipe will conflux group rivet tightly.Space after staggering in the zone of positive plate and the uncoated active material of negative plate is a drainage channel.Battery case (1) left and right sides contains a boss (9), on boss (9), respectively contain 3 trapezoidal boss platforms of dividing equally (10), be plugged with seal (4) in the through hole of trapezoidal boss platform (10), be provided with three RUBBER O type rubber seal (6) between through hole and the seal (4), the compression attenuate also makes conflux group and the negative plate group zone of confluxing of its superimposed positive plate beat the heat exchange pore respectively, be provided with drainage heat exchanger tube (2) in the heat exchange pore, drainage heat exchanger tube (2) two is passed two ends seal (4), the baffler of both sides (3), the pole plate group of confluxing, riveting pipe (6), drainage heat exchanger tube (2) termination becomes enlarging at seal (4) openings flange, drainage heat exchanger tube (2) causes seal (4) crimp and O type rubber seal in battery (to be provided with heat transferring medium in the 9 drainage heat exchanger tubes (2) by the machinery mode of the pipe body that expands that rises, its each cell drainage heat exchanger tube makes it be connected state by jumper pipe) distortion, make seal (4), baffler (3), the pole plate group of confluxing, riveting pipe (6) and battery container (1) are combined closely, and reach multi-sealed state.Be welded with above the battery case (1) and the corresponding lid in battery case (1) cross section (11).Be welded with safety valve (12) on the upper cover body (11), when reaching gassing pressure, safety valve is opened with the protection battery.When each cell combination, its drainage heat exchanger tube (2) makes it be connected state by jumper pipe.
Claims (5)
1, a kind of alkaline battery, its battery case mainly is provided with electrolyte in (1), the multi-disc positive plate, multi-disc negative plate and barrier film, barrier film is between positive plate and negative plate, positive plate and negative plate parallel shape are overlapping, it is characterized in that pole is in both sides, positive plate and negative plate stagger, promptly Yi Bian positive plate side stretches out, the negative plate side of opposite edge stretches out, form positive plate group and the negative plate group of confluxing of confluxing, the overlapping region of positive plate and negative plate applies active material, space after staggering in the zone of positive plate and the uncoated active material of negative plate is a drainage channel, the zone of uncoated active material stagger positive plate be the positive plate group of confluxing, the zone of uncoated active material stagger negative plate be the negative plate group of confluxing, conflux group and the negative plate group zone of confluxing of positive plate is provided with the heat exchange pore, be provided with drainage heat exchanger tube (2) in the heat exchange pore, barrier film is a diaphragm bag, the position that positive plate applies active material is coated by diaphragm bag, positive plate group and the negative plate group zone of confluxing of confluxing respectively is provided with one and the corresponding Contraband shape baffler (3) that is of its size, baffler (3) is being provided with the heat exchange pore with the pole plate same position, its termination flange of boss hole that the drainage heat exchanger tube passes battery container is enlarging, seal (4), baffler (3), the pole plate group of confluxing, riveting pipe (6) is passed by drainage heat exchanger tube (2), drainage heat exchanger tube (2) makes seal (4) by the machinery mode of the pipe body that expands that rises, baffler (3), the pole plate group of confluxing, riveting pipe (6) and battery container (1) are bonding state closely, and the area surface of the uncoated active material of positive plate and negative plate is wrapped up with insulating polymeric material.
2, alkaline battery according to claim 1 is characterized in that the area of positive/negative plate is unequal, and the region surface area that positive plate applies active material exists relation, Δ S=S
Negative-S
Just=0--2000mm
2Or S
Just=aS
Negative0＜a＜1; The upper and lower side that negative plate applies the zone of active material is higher than positive plate, and positive plate and negative plate apply the regional wide not contour of active material, and positive plate and negative plate are wide, contour.
3, alkaline battery according to claim 1 is characterized in that being provided with thermoelasticity O RunddichtringO (9) between the boss hole wall of seal (4) and battery container (1).
4, alkaline battery according to claim 1 is characterized in that each cell contains positive and negative terminals more than 3 pairs at least, and the positive and negative terminals on the positive/negative plate is drainage heat exchanger tube (2), and during each cell combination, its drainage heat exchanger tube is connected.
5, alkaline battery according to claim 1 is characterized in that being provided with heat transferring medium in the drainage heat exchanger tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02220883U CN2548268Y (en) | 2002-05-31 | 2002-05-31 | Alkaline accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02220883U CN2548268Y (en) | 2002-05-31 | 2002-05-31 | Alkaline accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2548268Y true CN2548268Y (en) | 2003-04-30 |
Family
ID=33699089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02220883U Expired - Fee Related CN2548268Y (en) | 2002-05-31 | 2002-05-31 | Alkaline accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2548268Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012089133A1 (en) * | 2010-12-31 | 2012-07-05 | Byd Company Limited | Battery |
| CN102569866A (en) * | 2010-12-31 | 2012-07-11 | 比亚迪股份有限公司 | Battery |
-
2002
- 2002-05-31 CN CN02220883U patent/CN2548268Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012089133A1 (en) * | 2010-12-31 | 2012-07-05 | Byd Company Limited | Battery |
| CN102569866A (en) * | 2010-12-31 | 2012-07-11 | 比亚迪股份有限公司 | Battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030430 |