CN208986122U - A kind of HORIZON~○ C~2M battery preventing pole plate expansion short circuit - Google Patents
A kind of HORIZON~○ C~2M battery preventing pole plate expansion short circuit Download PDFInfo
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- CN208986122U CN208986122U CN201821685611.4U CN201821685611U CN208986122U CN 208986122 U CN208986122 U CN 208986122U CN 201821685611 U CN201821685611 U CN 201821685611U CN 208986122 U CN208986122 U CN 208986122U
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- negative electrode
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- accommodating groove
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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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Abstract
本实用新型提供一种防止极板膨胀短路的水平铅酸电池，包括电池外壳，以及由正、负极板和隔膜组成的电池极群，其特征在于，所述电池外壳包括底板、顶盖和两侧板，所述侧板在每块负极板的延伸方向上设置有负极活性物质容置槽，该负极活性物质容置槽与任意正极板分离。本实用新型能够通过负极活性物质容置槽控制负极活性物质的膨胀路径避免正、负极板接触短路。
The utility model provides a horizontal lead-acid battery for preventing the expansion and short circuit of the pole plates, which comprises a battery casing, and a battery pole group composed of positive and negative plates and a diaphragm, and is characterized in that the battery casing comprises a bottom plate, a top cover and two The side plate is provided with a negative electrode active material accommodating groove in the extending direction of each negative electrode plate, and the negative electrode active material accommodating groove is separated from any positive electrode plate. The utility model can control the expansion path of the negative electrode active material through the negative electrode active material accommodating groove to avoid the contact short circuit between the positive electrode and the negative electrode plate.
Description
[technical field]
The utility model relates to a kind of battery more particularly to a kind of HORIZON~○ C~2M batteries for preventing pole plate expansion short circuit.
[background technique]
Lead-acid battery starts from the charge and discharge in the sulfuric acid solution of 10wt% about Pb electrode of Gaston Plante in 1859
Research.1881, the lead plaster that red lead, sulfuric acid and water mix was coated on stereotype as electrode by Camille Faure,
Stereotype is changed to stereotype grid by Ernest Volckmar.This two technologies alleviate lead-acid battery positive and negative pole lead paste softening and shedding,
Effectively improve the capacity of lead-acid battery.Thus lead-acid battery structure basic forming and moves to maturity.By grinding for more than 150 years
Study carefully and improve, lead-acid battery is all reformed in directions such as pole plate, additive, separator material and manufacturing process.Currently, lead
Sour battery production and reserve of electricity still occupy first of electrochmical power source, make huge tribute for the development and progress of human society
It offers.Because its have many advantages, such as reliable and stable, memory-less effect, it is cheap, monomer high capacity cell can be made into, lead-acid battery is
It is widely used as automobile starting power supply, uninterruptible power supply, the electrical source of power from electric bicycle to diesel submarines and accumulation power supply
Etc..
The basic structure of traditional lead acid batteries is that positive/negative plate is formed by the grid for being coated with lead plaster, between positive/negative plate with every
Film separates, and positive/negative plate is welded to battery current and external connection after corresponding busbar connector through pole, and battery cover is by battery
Sealing, prevents electrolyte from flowing out.The pole plate of traditional lead acid batteries is placed by the way of vertical, will appear electrolysis in use process
One of the main reason for polarization phenomena of liquid stratification phenomena, i.e. concentration of electrolyte difference, this is battery capacity decline and the lost of life.
In order to solve problem above, it has been developed that a kind of HORIZON~○ C~2M battery: dipolar configuration subject to pole plate, i.e., in plate
The positive electrode active material of coating on one side of grid is positive plate, and it is negative plate that another side, which coats negative electrode active material,；Between bipolar plates with diaphragm every
It opens, is horizontally staggered and stacks according to certain position, then pressure frame is installed fixed, form battery module and be fitted into battery case,
It is sealed after cast welding, then by acid filling, chemical conversion, is finally made horizon battery.Although this HORIZON~○ C~2M battery solves
Electrolyte stratification phenomena, and internal resistance is small, lightweight, the series connection between cell is directly realized by by the galvanized wire of connection bipolar plates,
Without welding (conventional elements lattice series connection, first by the welding of the integrally welded positive exit and next unit of a upper unit
Integral cathode exit is integrally formed by welding again, realizes the series connection of adjacent cells lattice).
But for lead-acid battery, during electrochemical reaction occurs, positive and negative electrode active material can occur
Different degrees of volume expansion, pierces through diaphragm, and positive electrode active material contact short circuit, or is made by pole plate edge slot positive and negative
Pole plate contacts with each other and causes short circuit, leads to battery failure.It is therefore prevented that the expansion of cell active materials causes positive and negative pole plate
Contact short circuit is the effective means of lead-acid battery service life of improving the standard.
[summary of the invention]
The utility model provides a kind of HORIZON~○ C~2M battery for preventing pole plate expansion short circuit, can pass through negative electrode active material
The expansion path of accommodation groove control negative electrode active material avoids positive and negative pole plate contact short circuit.
The technical solution of the utility model is as follows:
A kind of HORIZON~○ C~2M battery preventing pole plate expansion short circuit, including battery case, and by positive and negative pole plate and diaphragm
The battery electrode group of composition, which is characterized in that the battery case includes bottom plate, top cover and both side plate, and the side plate is negative at every piece
Negative electrode active material accommodation groove is provided on the extending direction of pole plate, the negative electrode active material accommodation groove and any positive plate point
From, that is to say, that the accommodation groove does not contact with any positive plate.For HORIZON~○ C~2M battery, positive discharge is by PbO2Conversion
For PbSO4, about 1.5 times of volume expansion；Cathode is converted into PbSO by Pb4, about 1.95 times of volume expansion；In addition, negative electrode active material is
Mandruka lead, intensity are far below the brown lead oxide of anode, so, during expansion, just it is being easy in thickness direction turgor pressure
Contracting cathode, and horizon battery casing rigidity is high, assembling pressure is big, and the expansion of cathode vertical direction is limited, can only spread around, again
Since weft is non-stretchable, expansion can only be carried out to two sides, although the characteristic that cathode has charging to shrink, negative plate is pressurized when discharging
Caused by two sides expansion can not restore, with cycle-index increase it is more serious.In general, in a limited space, after expansion
Cathode dendrite may grow up in vertical direction, it is short-circuit contact formation with anode.The accommodation groove can be living for the cathode of expansion
Property substance provides certain accommodating space in the extending direction of negative plate.Under the stacking pressure of battery case, the cathode of expansion
Active material can preferably extend to two side directions, climb and then contact with positive plate short without the edge slot along pole plate
Road, to improve the comprehensive performance and service life of battery.
Further, the height of above-mentioned negative electrode active material accommodation groove is 0.2~3mm bigger than the thickness of the negative plate.It is negative
Extremely activity accommodation groove is highly preferred more bigger than the thickness of negative plate, to guarantee that the negative electrode active material of all expansions is all defined
Within the scope of accommodation groove, without climbing along pole plate edge slot.
Further, the length of above-mentioned negative electrode active material accommodation groove is suitable with the length of the negative plate, quite refers to phase
Deng or it is bigger, the negative electrode active material of expansion is all limited within the scope of accommodation groove as principle.
Further, the groove depth of above-mentioned negative electrode active material accommodation groove is 0.5~5mm.Groove depth is related to the thickness of side plate,
In existing type, within battery effective time, the negative electrode active material accommodation groove of 0.5~5mm depth, which has been able to meet, to be held
Receive expansion negative electrode active material space requirement.
Further, the two sides of above-mentioned battery electrode group are provided with the separator of liquid barrier and/or gas flowing, the electricity
Shell position corresponding with the separator in pond is provided with glue groove, and sealing medium is filled in the glue groove, and the cathode is living
Property substance accommodation groove at a distance from the glue groove be greater than 0.The setting of separator and sealing medium can guarantee different battery poles
Liquid gas blowby is not altered at the galvanized wire of bipolar plates between group；Active material accommodation groove is not penetrated through with glue groove, then expands spilling
Negative electrode active material can not be also difficult to control because of the labyrinth at bipolar plates galvanized wire, can preferably ensure positive and negative electrode
Isolation between plate.Sealing medium take curable fluid as preferred, such as epoxy glue, plastics.
Further, above-mentioned battery case is composed of isolated bottom plate, top cover and both side plate.The shell of separate type makes
The all parts for obtaining battery preferably assemble, and are also conducive to positioning and processing.
Further, above-mentioned side plate is provided with for positioning surface Nian Jie or welding with bottom plate, and the bottom plate, which is provided with, matches
Close the locating slot of the positioning surface.Side plate forms the fixed company of sealing with the bonding or welding of locating slot by positioning surface with bottom plate
It connects.
Further, above-mentioned side plate and the top cover are fastened by screw or hot melt or dovetail self-locking.The structure energy
Certain stacking pressure is enough born, additional pressure frame is not needed and allows inside battery there are biggish stacking pressure, more
Active material after controlling expansion well overflows in the extending direction of pole plate and guarantees longitudinal direction and do not expand.
Further, the two sides of above-mentioned top cover and side plate cooperation are provided with forked tail platform, and the side plate is corresponding with forked tail platform
Position is provided with the dovetail groove for cooperating with forked tail platform, and the two mutual cooperation can make side plate and top cover solid by dovetail self-locking
It is fixed.
Further, the stacking pressure 50-200kPa between the top cover and bottom plate of above-mentioned battery case shows to deposit between pole plate
In certain pressure to force dilatant to be expanded to accommodation groove.It discharges by PbO pole2It is converted into PbSO4, 1.5 times of volume expansion；
Cathode is converted into PbSO by Pb4, 1.95 times of volume expansion；In addition, negative electrode active material is mandruka lead, intensity is far below just
The brown lead oxide of pole, so, during expansion, just it is being easy to expand in thickness direction and is compressing cathode, and horizon battery casing rigidity
Height, assembling pressure is big, and the expansion of cathode vertical direction is limited, can only spread around, and since weft is non-stretchable, expansion can only
It is carried out to two sides.Although the characteristic that cathode has charging to shrink, the expansion of two sides caused by negative plate is pressurized when discharging can not restore,
Increase with cycle-index more serious.For conventional batteries, one stacking pressure is small, and the two plastic housing intensity is low, is not enough to limit
Positive/negative plate is expanded in thickness direction；When battery cluster stacking pressure is sufficiently large, plastic housing is sufficiently strong, cathode then can around without
It is thickness direction expansion, the cathode accommodation groove for adding two sides so just has meaning.
The beneficial effects of the utility model are as follows:
1) negative electrode active material accommodation groove is arranged by the side plate in battery case in the utility model, can be the negative of expansion
Pole active material provides certain accommodating space in the extending direction of negative plate, under the stacking pressure of battery case, expansion
Negative electrode active material can preferably extend to two side direction of pole plate, will not be along pole plate without growing along vertical direction
Edge slot climb so that with positive plate contact short circuit, linear deformation will not occur, thus improve battery comprehensive performance and
Service life.
2) side plate, bottom plate, top cover and separator of separate type form cavity, then pass through more than media filler interstructural sky
Gap forms the good cell of leakproofness for being used to accommodate single group battery electrode group of good seal；Only increasing separator can only
Guarantee not altering liquid gas blowby at the galvanized wire of connection bipolar plates, can not block acid solution and gas from the border of separator adjacent
The diffusion of unit compartment, therefore, must increase sealing structure, be formed by the side plate, bottom plate and top cover of separate type on battery case
Battery case, separator can be assembled in, and be arranged be used for filled media sealing structure, with ensure not alter liquid and
Gas blowby；
2) battery case of the utility model by separate type side plate, bottom plate and top cover by pin, grafting, bonding or
The fixation of the modes such as welding is formed, the dovetail self-locking structure especially between side plate and top cover, can tolerate higher assembling pressure
Power provides necessary stacking pressure without pressure frame additional in traditional structure, so that plate active material will not be in longitudinal direction
Apparent dilatancy occurs, the negative electrode active material of expansion is forced to be spilled over to negative electrode active material accommodation groove to two sides；
3) separator of the utility model can be by media such as epoxy glues, can be according to the property of fluid before solidifying
Designed channel is sufficient filling with, such as glue groove and injecting glue slot, may be implemented after solidification bonding between different components and
The sealing in gap, can generate the effect of good barrier acid solution and acid gas, and certain fixed function is played to battery electrode group；
4) assemble method of the separate type shell of the utility model is reasonable, and step is easy, and sealing effect is good, is both conducive to mention
The overall performance of high battery, and improve the packaging efficiency of HORIZON~○ C~2M battery.
[Detailed description of the invention]
Fig. 1 is the schematic internal view of the side plate of embodiment one；
Fig. 2 is the A-A ' of the side plate of embodiment one to sectional view.
Mark explanation: 1, side plate；2, negative electrode active material accommodation groove；3, positioning surface；4, dovetail groove；5, glue groove；D, slot
It is deep；T, height.
[specific embodiment]
The utility model is described in further details with specific embodiment below, but the utility model be not only limited to
Lower specific embodiment.
Embodiment provided below is not the range that is covered to limit the utility model, and described step is not yet
It is to execute sequence to limit its.Those skilled in the art, which do the utility model in conjunction with existing common knowledge, obviously to be changed
Into also falling within the protection scope of the requires of the utility model.
Embodiment one
A kind of HORIZON~○ C~2M battery preventing pole plate expansion short circuit, including battery case, and by positive and negative pole plate and diaphragm
The battery electrode group of composition.Its battery case is made of separation bottom plate, top cover and both side plate, and side plate 1 is provided with for viscous with bottom plate
It connects or the positioning surface 3 of welding, the bottom plate is provided with the locating slot for cooperating the positioning surface, side plate 1 and bottom plate pass through positioning surface 3
It is sealedly and fixedly connected with the bonding or welding of locating slot formation.
Side plate 1 is provided with negative electrode active material accommodation groove 2 on the extending direction of every piece of negative plate, the negative electrode active material
Accommodation groove 2 is separated with any positive plate, that is to say, that the accommodation groove 2 does not contact with any positive plate.The accommodation groove 2 can be with
Certain accommodating space is provided in the extending direction of negative plate for the negative electrode active material of expansion, in the stacking pressure of battery case
Under, the negative electrode active material of expansion can preferably extend to two side directions, climb without the edge slot along pole plate so with
Positive plate contact short circuit, to improve the comprehensive performance and service life of battery.
It is subject to and illustrates direction, the height T of negative electrode active material accommodation groove is generally 0.2~3mm bigger than the thickness of negative plate,
Length is suitable with the length of negative plate, and groove depth d is 0.5~5mm.Side plate 1 is provided on the corresponding position of separator for holding
The glue groove 5 of sealing medium is set, sealing medium, the negative electrode active material accommodation groove 2 and the appearance glue are filled in glue groove 5
The separation of slot 5 does not penetrate through.Sealing medium is preferably epoxy glue.
Embodiment two
The HORIZON~○ C~2M battery of embodiment two and the difference of embodiment one are that side plate 1 is provided with pin hole, and pin passes through pin
Side plate 1 and top cover are fixed together by nail hole, and such fixation allows entire battery case to bear certain stacking pressure.
Battery performance detection
Self-discharge rate, cycle life and the expansion short-circuit conditions of 1 HORIZON~○ C~2M battery of table
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821685611.4U CN208986122U (en) | 2018-10-17 | 2018-10-17 | A kind of HORIZON~○ C~2M battery preventing pole plate expansion short circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821685611.4U CN208986122U (en) | 2018-10-17 | 2018-10-17 | A kind of HORIZON~○ C~2M battery preventing pole plate expansion short circuit |
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| CN208986122U true CN208986122U (en) | 2019-06-14 |
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| CN201821685611.4U Active CN208986122U (en) | 2018-10-17 | 2018-10-17 | A kind of HORIZON~○ C~2M battery preventing pole plate expansion short circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078325A (en) * | 2020-01-03 | 2021-07-06 | 易德维新能源科技(宿迁)有限公司 | Polar plate of bipolar battery and bipolar battery comprising same |
-
2018
- 2018-10-17 CN CN201821685611.4U patent/CN208986122U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078325A (en) * | 2020-01-03 | 2021-07-06 | 易德维新能源科技(宿迁)有限公司 | Polar plate of bipolar battery and bipolar battery comprising same |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200122 Granted publication date: 20190614 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210426 Granted publication date: 20190614 |
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| PD01 | Discharge of preservation of patent | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20260309 Address after: 313199 Pheasant Town Emerging Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee after: Chaowei Power Group Co.,Ltd. Country or region after: China Address before: 310000 Zhejiang Province Hangzhou City Yuhang District Cangqian Street Longyuan Road 88 No. 3 Building A402 Patentee before: ZHEJIANG TULANTE ENERGY STORAGE TECHNOLOGY Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |