CN202308114U - Lithium-ion power battery - Google Patents
Lithium-ion power battery Download PDFInfo
- Publication number
- CN202308114U CN202308114U CN201120407668XU CN201120407668U CN202308114U CN 202308114 U CN202308114 U CN 202308114U CN 201120407668X U CN201120407668X U CN 201120407668XU CN 201120407668 U CN201120407668 U CN 201120407668U CN 202308114 U CN202308114 U CN 202308114U
- Authority
- CN
- China
- Prior art keywords
- battery
- lithium
- pole group
- ion
- shim
- 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 - Lifetime
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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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Abstract
The utility model discloses a lithium-ion power battery, wherein a shim made of a macromolecule polypropylene material is arranged between the bottom of a battery shell and a pole group, and a plurality of liquid absorbing through holes are uniformly arranged on the shim. According to the lithium-ion power battery, the shim is arranged between the bottom of the battery shell and the pole group, thus the bottom of the battery shell can be effectively isolated and insulated from the pole group, the safety of a battery is greatly ensured, short circuit of the bottom of the battery shell and the battery pole group is effectively prevented, a necessary insulation protection function is achieved; and because the plurality of liquid absorbing through holes are uniformly arranged on the shim, the battery pole group forms an access vertically, the wetting property of the battery pole group is improved, the wetting time is reduced, thus the electric property of the battery is improved.
Description
Technical field
The utility model belongs to the battery technology field, particularly a kind of lithium-ion-power cell.
?
Background technology
The range of application of lithium ion battery more and more widely.Particularly in recent years, the development of lithium-ion-power cell was fast-developing especially, simultaneously the research of battery utmost point group built-in electrical insulation, electrolyte infiltration etc. was also goed deep into day by day.The insulation safety property of battery, the wettability of electrolyte are key technology emphasis and the requirements in electrokinetic cell making and the design process.
At present, lithium-ion-power cell adopts the hermetically sealed design in bottom of battery utmost point group mostly, and electrolyte can not be absorbed by utmost point group well; Thereby cause battery pole piece to produce the dead band; Influenced the electrical property and the security performance of battery, the electrolyte infiltrating time is also longer simultaneously, has reduced production efficiency.
The utility model content
The utility model purpose is to provide a kind of lithium-ion-power cell, and the electrolyte that is intended to solve existing lithium-ion-power cell can not be absorbed by utmost point group well and cause battery pole piece to produce the dead band, influences the electrical property of battery and the problem of security performance.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is following:
A kind of lithium-ion-power cell is provided with the pad that a macromolecule polypropylene material is processed between battery case bottom and utmost point group, evenly offer some imbibition through holes on the said pad.
Preferably, said pad is a rectangle.
Preferably, said spacer thickness is 0.1-0.2mm.
Preferably, said imbibition through hole is circular, and its diameter is 3mm.
The utility model is through being provided with the pad that a macromolecule polypropylene material is processed between battery case bottom and utmost point group; Can be effectively with battery case bottom and utmost point group isolated insulation; Guaranteed the fail safe of battery greatly; Effectively prevent the generation of battery utmost point group and battery case bottom short circuit phenomenon, played necessary insulation protection effect; Owing to evenly offer some imbibition through holes on the said pad, improved simultaneously battery utmost point group wettability, reduced infiltrating time, improved the electrical property of battery.
Description of drawings
Fig. 1 is the plan structure sketch map of the lithium-ion-power cell pad that provides of the utility model embodiment;
Fig. 2 is the cross-sectional view of the lithium-ion-power cell pad that provides of the utility model embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing.
Shown in Fig. 1-2, a kind of lithium-ion-power cell is provided with the pad 1 that a macromolecule polypropylene material is processed between battery case bottom and utmost point group, evenly offer some imbibition through holes 2 on the said pad 1.
This imbibition through hole 2 is convenient to electrolyte to utmost point group internal penetration, can make battery utmost point group form path up and down, has guaranteed that electrolyte fully soaks into battery utmost point group, has also accelerated the rate of liquid aspiration of utmost point group simultaneously.
Said pad 1 is processed for the macromolecule polypropylene material punching press of electrolyte resistance corrosion, and cleaning surfaces does not have greasy dirt, and neatly smooth, edge does not have burr; Said pad 1 is arranged between battery case bottom and the utmost point group, has played necessary insulation protection effect, has also improved the electrical property of battery simultaneously.
Preferably, said pad is a rectangle.
Preferably, said spacer thickness is 0.1-0.2mm.
Preferably, said imbibition through hole is circular, and its diameter is 3mm.
But the pad hand paste that is provided with in the said lithium-ion-power cell is put into battery case in battery utmost point group bottom with battery utmost point group together; Also can be made into coiled material, use manipulator to put into battery case prior to battery utmost point group.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of the utility model.
Claims (4)
1. a lithium-ion-power cell is characterized in that, between battery case bottom and utmost point group, is provided with the pad that a macromolecule polypropylene material is processed, and evenly offers some imbibition through holes on the said pad.
2. lithium-ion-power cell according to claim 1 is characterized in that, said pad is a rectangle.
3. lithium-ion-power cell according to claim 1 and 2 is characterized in that, said spacer thickness is 0.1-0.2mm.
4. lithium-ion-power cell according to claim 1 is characterized in that, said imbibition through hole is circular, and its diameter is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120407668XU CN202308114U (en) | 2011-10-24 | 2011-10-24 | Lithium-ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120407668XU CN202308114U (en) | 2011-10-24 | 2011-10-24 | Lithium-ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202308114U true CN202308114U (en) | 2012-07-04 |
Family
ID=46376947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120407668XU Expired - Lifetime CN202308114U (en) | 2011-10-24 | 2011-10-24 | Lithium-ion power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202308114U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9748552B2 (en) | 2012-12-25 | 2017-08-29 | Byd Company Limited | Battery having protection components |
| US9941505B2 (en) | 2012-12-25 | 2018-04-10 | Byd Company Limited | Battery |
-
2011
- 2011-10-24 CN CN201120407668XU patent/CN202308114U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9748552B2 (en) | 2012-12-25 | 2017-08-29 | Byd Company Limited | Battery having protection components |
| US9941505B2 (en) | 2012-12-25 | 2018-04-10 | Byd Company Limited | Battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |