CN202308077U - Lower gasket structure of lithium ion power battery - Google Patents
Lower gasket structure of lithium ion power battery Download PDFInfo
- Publication number
- CN202308077U CN202308077U CN2011203607944U CN201120360794U CN202308077U CN 202308077 U CN202308077 U CN 202308077U CN 2011203607944 U CN2011203607944 U CN 2011203607944U CN 201120360794 U CN201120360794 U CN 201120360794U CN 202308077 U CN202308077 U CN 202308077U
- Authority
- CN
- China
- Prior art keywords
- battery
- lower gasket
- gasket structure
- pole group
- lithium ion
- 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 relates to the technical field of manufacturing of a lithium ion battery, in particular to a lower gasket structure of a lithium ion power battery. The lower gasket structure is characterized by comprising a gasket body, wherein a plurality of liquid suction through holes are arranged on the gasket body. The lower gasket structure has the beneficial effects that the lower gasket structure has a simple structure; the bottom of a battery shell is isolated and insulated from a pole group by the gasket body, so that the safety of the battery is greatly ensured, the phenomenon of short circuit between the battery pole group and the bottom of the battery shell is effectively prevented and the lower gasket structure takes a necessary insulation protection effect; and the liquid suction through holes on the gasket body can be used for accelerating the speed that the battery pole group is sufficiently wet by electrolyte and also accelerating the liquid suction speed of the pole group, so that the wettability of the battery pole group is improved, the wetting time is reduced, the product quality is improved and the market competitiveness of a product is strengthened.
Description
Technical field
The utility model relates to technical field of lithium-ion battery, relates in particular to a kind of lithium-ion-power cell lower gasket structure.
Background technology
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, adopt the hermetically sealed design in bottom of battery utmost point group mostly, on the one hand; Electrolyte can not well be absorbed by utmost point group, causes battery pole piece to produce the dead band, thereby influences the electrical property and the security performance of battery; The electrolyte infiltrating time is also longer simultaneously, has reduced production efficiency; On the other hand, because the battery pole piece matrix all be metal material, just very the aluminium foil negative pole is that Copper Foil and battery container are steel or aluminium matter, and the phenomenon that is short-circuited easily bottom battery utmost point group and the battery case influences battery quality.
The utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned technology, and a kind of lithium-ion-power cell lower gasket structure is provided, and avoids the bottom short circuit of battery utmost point group and battery case, improves the wetting property of battery utmost point group.
The utility model is for realizing above-mentioned purpose, and adopt following technical scheme: a kind of lithium-ion-power cell lower gasket structure is characterized in that: comprise shim body, said shim body is provided with several imbibition through holes.
Preferably, said imbibition through-hole diameter is 2mm-4mm.
Preferably, said shim body thickness is 0.1mm-0.2mm.
Preferably, said shim body adopts the macromolecule polypropylene material of electrolyte resistance corrosion.
The beneficial effect of the utility model is: simple in structure; Through shim body with battery case bottom and utmost point group isolated insulation; Guarantee the fail safe of battery greatly, effectively prevented the generation of battery utmost point group and battery case bottom short circuit phenomenon, played necessary insulation protection effect; Imbibition through hole on the shim body can quicken electrolyte and soak into battery utmost point group fully, accelerates the rate of liquid aspiration of utmost point group simultaneously, improved battery utmost point group wettability, reduced infiltrating time and improved the quality of products, strengthen the competitiveness of product in market.
Description of drawings
Fig. 1 is the vertical view of the utility model;
Fig. 2 is the profile of the utility model.
Embodiment
Embodiment below in conjunction with accompanying drawing and preferred embodiment detailed description the utility model.As shown in the figure, a kind of lithium-ion-power cell lower gasket structure comprises shim body 1, and shim body thickness is 0.1mm-0.2mm.Shim body adopts the macromolecule polypropylene material of electrolyte resistance corrosion, and cleaning surfaces does not have greasy dirt, and neatly smooth, edge does not have burr.Said shim body is provided with several imbibition through holes 2, and the imbibition through-hole diameter is 2mm-4mm, makes battery utmost point group form path up and down and has guaranteed that electrolyte soaks into the rate of liquid aspiration that battery utmost point group is accelerated utmost point group simultaneously fully.
But the utility model hand paste is put into battery case in battery utmost point group bottom together with battery utmost point group and also can be made into coiled material and use manipulator to put into battery case prior to battery utmost point group.
The utility model is simple in structure, with battery case bottom and utmost point group isolated insulation, has guaranteed the fail safe of battery through shim body greatly, effectively prevents the generation of battery utmost point group and battery case bottom short circuit phenomenon, has played necessary insulation protection effect; Imbibition through hole on the shim body can quicken electrolyte and soak into battery utmost point group fully, accelerates the rate of liquid aspiration of utmost point group simultaneously, improved battery utmost point group wettability, reduced infiltrating time and improved the quality of products, strengthen the competitiveness of product in market.
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. lithium-ion-power cell lower gasket structure, it is characterized in that: comprise shim body, said shim body is provided with several imbibition through holes.
2. lithium-ion-power cell lower gasket structure according to claim 1 is characterized in that: said imbibition through-hole diameter is 2mm-4mm.
3. lithium-ion-power cell lower gasket structure according to claim 1 and 2 is characterized in that: said shim body thickness is 0.1mm-0.2mm.
4. lithium-ion-power cell lower gasket structure according to claim 3 is characterized in that: said shim body adopts the macromolecule polypropylene material of electrolyte resistance corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203607944U CN202308077U (en) | 2011-09-23 | 2011-09-23 | Lower gasket structure of lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203607944U CN202308077U (en) | 2011-09-23 | 2011-09-23 | Lower gasket structure of lithium ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202308077U true CN202308077U (en) | 2012-07-04 |
Family
ID=46376910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203607944U Expired - Lifetime CN202308077U (en) | 2011-09-23 | 2011-09-23 | Lower gasket structure of lithium ion power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202308077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11495867B2 (en) | 2018-02-23 | 2022-11-08 | Lg Energy Solution, Ltd. | Rust inhibitor for gasket, gasket for secondary battery including same, and secondary battery including gasket for secondary battery |
-
2011
- 2011-09-23 CN CN2011203607944U patent/CN202308077U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11495867B2 (en) | 2018-02-23 | 2022-11-08 | Lg Energy Solution, Ltd. | Rust inhibitor for gasket, gasket for secondary battery including same, and secondary battery including gasket for secondary 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 |