CN201820839U - Improved structure of pole roll of nickel-hydrogen battery with long service life - Google Patents
Improved structure of pole roll of nickel-hydrogen battery with long service life Download PDFInfo
- Publication number
- CN201820839U CN201820839U CN2010205600381U CN201020560038U CN201820839U CN 201820839 U CN201820839 U CN 201820839U CN 2010205600381 U CN2010205600381 U CN 2010205600381U CN 201020560038 U CN201020560038 U CN 201020560038U CN 201820839 U CN201820839 U CN 201820839U
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- CN
- China
- Prior art keywords
- battery
- length
- diaphragm
- pole piece
- barrier film
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- 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
- 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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses an improved structure of a pole roll of a nickel-hydrogen battery with long service life, which comprises a positive pole piece, a negative pole piece and a diaphragm, wherein the length of the diaphragm is longer than the sum of the length of the positive pole piece and the length of the negative pole piece, more than one ring of the diaphragm is increased on the pole roll, and the length of the diaphragm exceeds the sum of the length of the positive pole piece and the length of the negative pole piece by 10%-50%. After adopting the technical scheme, the alkali injection quantity of the battery can be improved by increasing the length of the diaphragm and utilizing the performances of moisturization and adsorption of the diaphragm; simultaneously, as the increased diaphragm is not extruded, the amount of the adsorbed electrolyte is far greater than that of the extruded diaphragm, thereby being very conductive to storing electrolyte in the battery and preventing obvious flow of alkali liquor in the battery due to excessive alkali injection, while the situation is not conductive to an anti-burst ball in a battery cap and can cause pressure loss of the anti-burst ball and cause leakage or creepage of the battery when the time is long.
Description
Technical field:
The utility model relates to a kind of structure-improved of long-life Ni-MH battery utmost point volume.
Background technology:
One of them factor that influences the Ni-MH battery life-span is the deal of electrolyte, the electrolyte of Ni-MH battery is all absorbed by barrier film and stores, the length of existing nickel-hydrogen battery separator and positive plate length are suitable with negative plate length sum, poling is rolled up because positive/negative plate and barrier film need be reeled simultaneously, barrier film can be squeezed, the electrolyte content of its absorption and maintenance is less, causes the Ni-MH battery life-span shorter relatively.
Summary of the invention:
The purpose of this utility model is in order to overcome the shortcoming of above-mentioned prior art, a kind of long-life Ni-MH battery utmost point volume structure to be provided.
For achieving the above object, the technical scheme that the utility model provides is: a kind of structure-improved of long-life Ni-MH battery utmost point volume, include positive plate, negative plate and barrier film, the length of barrier film is longer than positive/negative plate length summation, at the barrier film that has more on the utmost point volume more than the circle.
The length of barrier film surpasses 10%～50% of positive/negative plate length summation.
After adopting technique scheme, by increasing the length of barrier film, the performance of the absorption of preserving moisture of barrier film, improve the notes alkali number of battery, simultaneously, the barrier film that increases is not owing to be squeezed, so the electrolyte content of its absorption will be much larger than the barrier film that is squeezed, so just be very beneficial for the storage of inside battery electrolyte, and can prevent to avoid annotating alkali too much and the tangible alkali lye of inside battery flows, this situation is unfavorable for the explosion-proof ball in the battery cap, can cause the pressure loss of explosion-proof ball, and the time for a long time also can cause battery leakage or climb alkali.
Description of drawings:
Fig. 1 is the structural representation of the utility model Ni-MH battery utmost point volume.
Embodiment:
Now elaborate the utility model in conjunction with the accompanying drawings:
Embodiment one: make 50CH4000mAh Ni-MH battery utmost point volume: the both positive and negative polarity active material is respectively by joining slurry, starching, oven dry, compressing tablets etc. are made on the positive plate 1 and negative plate 2 of battery, positive plate 1 size 325mm * 36mm * 0.56mm and negative plate 2 size 410mm * 36mm * 0.24mm, cut the size 1190mm * 42mm * 0.18mm of barrier film 3, earlier the membrane portions that exceeds positive plate 1 and negative plate 2 length is reeled, wind the pure membrane coil of multi-turn, put into positive plate 1 and negative plate 2 respectively according to normal order again, and continue to finish coiling, the level volume of winding is inserted in the C box hat, annotating alkali then seals, change into by technology, 50CH4000 battery qualified product; The 60D7000 of this structure life performance of the battery of structure usually promotes (with the calculating of 100%DOD depth of discharge) more than 25%.
Example two: make 60D7000mAh long-life Ni-MH battery utmost point volume: the both positive and negative polarity active material is respectively by joining slurry, starching, oven dry, compressing tablets etc. are made the positive plate and the negative plate of battery, positive plate size 440mm * 45mm * 0.52mm and negative plate size 635mm * 45mm * 0.25mm, and cut barrier film 1600mm * 52mm * 0.18mm, earlier the membrane portions that exceeds positive plate and negative plate length is reeled, wind the pure membrane coil of multi-turn, put into positive plate and negative plate respectively according to normal order again, and continue to finish coiling, the level volume of winding is inserted in the C box hat, annotate alkali again, seal, change into, make the 60D7000 battery; The 60D7000 of this structure life performance of the battery of structure usually promotes (with the calculating of 100%DOD depth of discharge) more than 30%.
Above-mentioned with reference to embodiment this long-life Ni-MH battery utmost point to be involved in capable description be illustrative rather than determinate, therefore in the variation and the modification that do not break away under the utility model general plotting, should belong within the protection range of the present utility model.
Claims (2)
1. the structure-improved of a long-life Ni-MH battery utmost point volume includes positive plate, negative plate and barrier film, and it is characterized in that: the length of barrier film is longer than positive/negative plate length summation, at the barrier film that has more on the utmost point volume more than the circle.
2. the structure-improved of a kind of long-life Ni-MH battery utmost point volume according to claim 1, it is characterized in that: the length of barrier film surpasses 10%～50% of positive/negative plate length summation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205600381U CN201820839U (en) | 2010-10-13 | 2010-10-13 | Improved structure of pole roll of nickel-hydrogen battery with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205600381U CN201820839U (en) | 2010-10-13 | 2010-10-13 | Improved structure of pole roll of nickel-hydrogen battery with long service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201820839U true CN201820839U (en) | 2011-05-04 |
Family
ID=43918783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205600381U Expired - Fee Related CN201820839U (en) | 2010-10-13 | 2010-10-13 | Improved structure of pole roll of nickel-hydrogen battery with long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201820839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540706A (en) * | 2021-07-12 | 2021-10-22 | 欣旺达电动汽车电池有限公司 | Battery cell and battery |
-
2010
- 2010-10-13 CN CN2010205600381U patent/CN201820839U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540706A (en) * | 2021-07-12 | 2021-10-22 | 欣旺达电动汽车电池有限公司 | Battery cell and battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20161013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |