CN104409668A - Power battery top cover with high sealing property and buffering property and processing method for power battery top cover - Google Patents
Power battery top cover with high sealing property and buffering property and processing method for power battery top cover Download PDFInfo
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- CN104409668A CN104409668A CN201410679930.4A CN201410679930A CN104409668A CN 104409668 A CN104409668 A CN 104409668A CN 201410679930 A CN201410679930 A CN 201410679930A CN 104409668 A CN104409668 A CN 104409668A
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- China
- Prior art keywords
- top cover
- insulation layer
- positive
- stationary magazine
- magazine creel
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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 invention discloses a power battery top cover with high sealing property and high buffering property. The power battery top cover comprises a top cover base plate, wherein two polar column holes which respectively penetrate through a positive polar column and a negative polar column are formed in the top cover base plate; a barrel-shaped fixing drum is arranged around the polar column holes in a manner of extending towards the outer upper part; the inner cavity of the fixing drum is larger than the positive polar column or the negative polar column, and an annular clearance is formed between the fixing drum and the positive polar column or the negative polar column; the inner surface of the fixing rum is covered by a first sealed insulating layer; when the positive polar column or the negative polar column penetrates through the corresponding polar column hole, the surface of a column body opposite to the fixing drum is covered by a second sealed insulating layer; an insulating pad for isolating the inner surface of the top cover base plate sleeves the bottom of the positive polar column or the negative polar column; a third sealed insulating layer is arranged in the annular clearance between the fixing drum and the positive polar column or the negative polar column. The invention also discloses a processing method for the power battery top cover with high sealing property and high buffering property. The power battery top cover with high sealing property and high buffering property has the advantages of firm sealing and stable sealing performance.
Description
Technical field
The present invention relates to accessory battery, especially relate to a kind of the electrokinetic cell top cover and the processing method thereof that seal firm, that sealing property is stable high leakproofness and resiliency.
Background technology
Electrokinetic cell is the important component part of new forms of energy battery, and its great advantage is that energy is high, pollution-free; Be the developing direction of new-energy automobile and energy-accumulating power station, thus the safety performance of battery is particularly important, and the sealing of electrokinetic cell top cover is the important leverage of cell safety.The electrokinetic cell of existing market application, sealing means many employings nut between top cover and battery electrode column or riveting method compress, this kind of sealing means is also insecure, loosening phenomenon is there will be in transport, vibrations, charge and discharge process, cell sealing is caused to lose efficacy, thus cause the leakage of electrolyte, make battery short circuit or capacity attenuation, potential safety hazard is caused to battery.
Summary of the invention
For solving the problem, the object of the present invention is to provide a kind ofly to seal firmly, electrokinetic cell top cover that sealing property is stable and processing method thereof.
The present invention is realized by following technical measures, the electrokinetic cell top cover of a kind of high leakproofness and resiliency, comprise top cover substrate, described top cover substrate is provided with two pole column holes be respectively used to through positive terminal and negative terminal, the outside top of described pole column hole surrounding is extended a tubular stationary magazine creel, in described stationary magazine creel, sky is greater than positive terminal or negative terminal and forms annular gap with positive terminal or negative terminal, described stationary magazine creel inner surface is coated with the first sealed insulation layer, described positive terminal or negative terminal are coated with the second sealed insulation layer through during pole column hole relative to the damaged surface of stationary magazine creel, the bottom of described positive terminal or negative terminal is arranged with the insulation cushion of the inner surface of an isolation top cover substrate, the 3rd sealed insulation layer is provided with in the annular gap of described stationary magazine creel and positive terminal or negative terminal.
As a kind of optimal way, described stationary magazine creel inner surface is provided with asperities, described stationary magazine creel indent raised surface is coated with the first sealed insulation layer, described positive terminal or negative terminal are provided with asperities through during pole column hole relative to the damaged surface of stationary magazine creel, and the asperities surface coverage of described pole has the second sealed insulation layer.
As a kind of optimal way, described asperities is pore.
As a kind of optimal way, described 3rd sealed insulation layer extends between the inner surface of positive terminal or negative terminal and top cover substrate.
As a kind of optimal way, described first plating of sealed insulation layer or membrane or be sprayed on stationary magazine creel inner surface, described second sealed insulation layer plating or membrane or be sprayed on positive terminal or negative terminal outer surface.
The processing method of the present invention's also electrokinetic cell top cover of a kind of high leakproofness and resiliency, comprises the following steps:
(1) by the pole column hole of top cover substrate upwards stretched certain altitude formation tubular stationary magazine creel, then chemical surface treatment is carried out;
(2) carry out chemical treatment to the surface of top cover substrate and positive and negative pole, make its surface form some pores, pore has certain degree of depth;
(3) use the method for plating or membrane or spraying, adhere to the sealed insulation layer of thin layer at pore on the surface, by high temperature, sealed insulating material is melted, after cooling curing, form densification, firmly sealed insulation layer;
(4) insulation cushion is inserted in positive and negative pole;
(5) use between positive and negative pole after treatment and top cover substrate and inject or the sealed insulating material of injection moulding or spraying molten, make combining of the sealed insulation layer densification of the encapsulant of melting and top cover substrate and positive and negative pole, thus play the effect of sealing.
As a kind of optimal way, described sealed insulating material is one or more in pottery, plastic cement, glass.
As a kind of optimal way, described insulation cushion is elastomeric material or plastic sealing material.
The present invention utilize multi-layer sealed insulating barrier and insulation cushion make the sealing between top cover substrate and pole more firmly, sealing property is more stable, when being given a shock, high/low temperature change, still keep good sealing property.Especially the requirement of the mobile device such as automobile, model plane can be met.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the embodiment of the present invention;
Fig. 2 is the A partial enlarged drawing of Fig. 1.
Embodiment
Contrast accompanying drawing below in conjunction with embodiment the present invention is described in further detail.
A kind of high leakproofness of the present embodiment and the electrokinetic cell top cover of resiliency, please refer to Fig. 1 to Fig. 2, comprise top cover substrate 1, described top cover substrate 1 is provided with two pole column holes be respectively used to through positive terminal 2 and negative terminal, the outside top of described pole column hole surrounding is extended a tubular stationary magazine creel 3, in described stationary magazine creel 3, sky is greater than positive terminal 2 or negative terminal 10 and forms annular gap with positive terminal 2 or negative terminal 10, described stationary magazine creel 3 inner surface is coated with the first sealed insulation layer 5, described positive terminal 2 or negative terminal 10 are coated with the second sealed insulation layer 8 through during pole column hole relative to the damaged surface of stationary magazine creel 3, the bottom of described positive terminal 2 or negative terminal 10 is arranged with the insulation cushion 9 of the inner surface of an isolation top cover substrate, the 3rd sealed insulation layer 6 is provided with in the annular gap of described stationary magazine creel 3 and positive terminal 2 or negative terminal 10.
The high leakproofness of the present embodiment and the electrokinetic cell top cover of resiliency, please refer to accompanying drawing 1 and Fig. 2, the basis of previous technique scheme can also be specifically, stationary magazine creel 3 inner surface is provided with asperities 4, in described stationary magazine creel 3, asperities 4 surface coverage has the first sealed insulation layer 5, described positive terminal 2 or negative terminal 10 are provided with asperities 7 through during pole column hole relative to the damaged surface of stationary magazine creel 3, and asperities 7 surface coverage of described pole has the second sealed insulation layer 8; Asperities is in the present embodiment for there being pore.
The processing method of the electrokinetic cell top cover of above-mentioned high leakproofness and resiliency, comprises the following steps:
(1) by the pole column hole of top cover substrate 1 upwards stretched certain altitude formation tubular stationary magazine creel 3, then chemical surface treatment is carried out;
(2) carry out chemical treatment to the surface of top cover substrate 1 and positive and negative pole 2,10, make its surface form some pores, pore has certain degree of depth;
(3) method of plating or membrane or spraying is used, the sealed insulation layer of thin layer is adhered on the surface at pore, by high temperature, sealed insulating material (this material can be pottery, plastic cement, glass etc. one or more) is melted, after cooling curing, form fine and close, firmly sealed insulation layer;
(4) insulation cushion 9 is inserted in positive and negative pole 2,10;
(5) use between positive and negative pole 2,10 after treatment and top cover substrate 1 and inject or the sealed insulating material of injection moulding or spraying molten, (this material includes but are not limited to one or more materials of various plastic cement, pottery, glass), by control temperature, pressure, time etc. make combining of the non-metallic layer densification of the encapsulant of melting and top cover and electrode, thus play the effect of sealing.
This top cover make the sealing between top cover substrate and pole more firmly, sealing property is more stable, when being given a shock, high/low temperature change, still keep good sealing property.Especially the requirement of the mobile device such as automobile, model plane can be met.
More than that the electrokinetic cell top cover of high leakproofness of the present invention and resiliency and processing method thereof are set forth; the present invention is understood for helping; but embodiments of the present invention are not restricted to the described embodiments; any do not deviate from the principle of the invention under do change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence, be included in protection scope of the present invention.
Claims (8)
1. the electrokinetic cell top cover of a high leakproofness and resiliency, it is characterized in that: comprise top cover substrate, described top cover substrate is provided with two pole column holes be respectively used to through positive terminal and negative terminal, the outside top of described pole column hole surrounding is extended a tubular stationary magazine creel, in described stationary magazine creel, sky is greater than positive terminal or negative terminal and forms annular gap with positive terminal or negative terminal, described stationary magazine creel inner surface is coated with the first sealed insulation layer, described positive terminal or negative terminal are coated with the second sealed insulation layer through during pole column hole relative to the damaged surface of stationary magazine creel, the bottom of described positive terminal or negative terminal is arranged with the insulation cushion of the inner surface of an isolation top cover substrate, the 3rd sealed insulation layer is provided with in the annular gap of described stationary magazine creel and positive terminal or negative terminal.
2. the electrokinetic cell top cover of high leakproofness according to claim 1 and resiliency, it is characterized in that: described stationary magazine creel inner surface is provided with asperities, described stationary magazine creel indent raised surface is coated with the first sealed insulation layer, described positive terminal or negative terminal are provided with asperities through during pole column hole relative to the damaged surface of stationary magazine creel, and the asperities surface coverage of described pole has the second sealed insulation layer.
3. the electrokinetic cell top cover of high leakproofness according to claim 2 and resiliency, is characterized in that: described asperities is pore.
4. the electrokinetic cell top cover of high leakproofness according to claim 1 and resiliency, is characterized in that: described 3rd sealed insulation layer extends between the inner surface of positive terminal or negative terminal and top cover substrate.
5. the electrokinetic cell top cover of high leakproofness according to claim 1 and resiliency, it is characterized in that: described first plating of sealed insulation layer or membrane or be sprayed on stationary magazine creel inner surface, described second sealed insulation layer plating or membrane or be sprayed on positive terminal or negative terminal outer surface.
6. a processing method for the electrokinetic cell top cover of high leakproofness and resiliency, is characterized in that comprising the following steps:
(1) by the pole column hole of top cover substrate upwards stretched certain altitude formation tubular stationary magazine creel, then chemical surface treatment is carried out;
(2) chemical treatment is carried out to the surface of top cover substrate and positive and negative pole, make its surface form some pores;
(3) use the method for plating or membrane or spraying, adhere to one deck sealed insulation layer on the surface at pore, by high temperature, sealed insulating material is melted, after cooling curing, form densification, firmly sealed insulation layer;
(4) insulation cushion is inserted in positive and negative pole;
(5) use between positive and negative pole after treatment and top cover substrate and inject or the sealed insulating material of injection moulding or spraying molten, make combining of the sealed insulation layer densification of the encapsulant of melting and top cover substrate and positive and negative pole, thus play the effect of sealing.
7. processing method according to claim 6, is characterized in that: described sealed insulating material is one or more in pottery, plastic cement, glass.
8. processing method according to claim 6, is characterized in that: described insulation cushion is elastomeric material or plastic sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679930.4A CN104409668A (en) | 2014-11-23 | 2014-11-23 | Power battery top cover with high sealing property and buffering property and processing method for power battery top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679930.4A CN104409668A (en) | 2014-11-23 | 2014-11-23 | Power battery top cover with high sealing property and buffering property and processing method for power battery top cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104409668A true CN104409668A (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410679930.4A Pending CN104409668A (en) | 2014-11-23 | 2014-11-23 | Power battery top cover with high sealing property and buffering property and processing method for power battery top cover |
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| Country | Link |
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| CN (1) | CN104409668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752646A (en) * | 2015-03-26 | 2015-07-01 | 深圳市科达利实业股份有限公司 | Sealing structure of power battery top cap and electrode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894935A (en) * | 2010-07-08 | 2010-11-24 | 武汉非凡电源有限公司 | Retractable terminal structure of lead-acid storage battery |
| CN102082244A (en) * | 2009-11-28 | 2011-06-01 | 上海比亚迪有限公司 | Battery cover plate assembly, preparation method of battery cover plate assembly, single battery and battery pack |
| CN103647031A (en) * | 2013-12-06 | 2014-03-19 | 广州力柏电动科技有限公司 | Battery insulating and sealing structure |
| CN204315636U (en) * | 2014-11-23 | 2015-05-06 | 深圳市科达利实业股份有限公司 | The electrokinetic cell top cover of high leakproofness and resiliency |
-
2014
- 2014-11-23 CN CN201410679930.4A patent/CN104409668A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082244A (en) * | 2009-11-28 | 2011-06-01 | 上海比亚迪有限公司 | Battery cover plate assembly, preparation method of battery cover plate assembly, single battery and battery pack |
| CN101894935A (en) * | 2010-07-08 | 2010-11-24 | 武汉非凡电源有限公司 | Retractable terminal structure of lead-acid storage battery |
| CN103647031A (en) * | 2013-12-06 | 2014-03-19 | 广州力柏电动科技有限公司 | Battery insulating and sealing structure |
| CN204315636U (en) * | 2014-11-23 | 2015-05-06 | 深圳市科达利实业股份有限公司 | The electrokinetic cell top cover of high leakproofness and resiliency |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752646A (en) * | 2015-03-26 | 2015-07-01 | 深圳市科达利实业股份有限公司 | Sealing structure of power battery top cap and electrode |
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Application publication date: 20150311 |
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