CN201466087U - Lithium-ion battery cathode-post riveting sealing structure - Google Patents
Lithium-ion battery cathode-post riveting sealing structure Download PDFInfo
- Publication number
- CN201466087U CN201466087U CN2009200970996U CN200920097099U CN201466087U CN 201466087 U CN201466087 U CN 201466087U CN 2009200970996 U CN2009200970996 U CN 2009200970996U CN 200920097099 U CN200920097099 U CN 200920097099U CN 201466087 U CN201466087 U CN 201466087U
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- China
- Prior art keywords
- post
- ion battery
- lithium ion
- negative terminal
- battery
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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
Abstract
The utility model provides a lithium-ion battery cathode-post riveting sealing structure, which comprises a cathode post, an upper insulation pad, a lower insulation pad and a battery cover, and also comprises a joint washer, wherein the cathode post sequentially passes through the joint washer and a pole post positioning groove on the battery cover to be riveted and fixed, the lower insulation pad passes through a riveting head of the cathode post and is fixedly riveted with the upper insulation pad, the battery cover and the cathode post. The riveting sealing structure greatly improves the sealabiltiy of the connection part between the cathode post and the battery cover. By adding a joint washer at the contact part between the cathode post and the pole post positioning groove of the battery cover, the external connection structure is further insulated and sealed.
Description
Technical field
The utility model relates to the lithium ion battery production field, especially a kind of lithium ion battery negative post riveted joint hermetically-sealed construction.
Background technology
Lithium ion battery compare with the battery of other types such as plumbic acid, cadmium nickel have that specific capacity is big, operating voltage is high, charging rate is fast, operating temperature range is wide, have extended cycle life, volume is little, advantage such as in light weight, be widely used in fields such as mobile phone, notebook computer, electric tool at present, and its range of application more and more widely.
Along with the maturation of electric vehicle engineering and perfect day by day, electric automobile, the dream that hybrid vehicle is come into daily life has become possibility, and in the process that electric automobile is popularized, breeding huge business opportunity, and the quality of vehicle-mounted great-capacity power battery performance directly affects the overall performance of electric automobile, this has higher requirement for the electric automobile vehicle mounted dynamic battery, the reliability of battery, fail safe is that the technological difficulties in the lithium ion battery manufacturing process and the sealing of emphasis, particularly battery all are the important step that directly influences battery performance with negative terminal with being connected of battery lid.
Now the lithium ion battery negative post generally adopts screw to be fastenedly connected with nut with battery lid to cooperate, make and have certain sealing function between negative terminal and cap, but the air-tightness of vehicle-mounted high capacity lithium ion battery requires strict more, when capacity increases, interior pressure is also higher relatively, easier leakage or gas leakage after the battery assembling, if sealing property is bad in the lithium ion battery use, the electric liquid that inside battery sucks in airborne moisture and the battery mixes, or the dry crystallization of electrolyte inside volatilization, will cause the decay of battery performance and cycle life, internal resistance increases, influence the various performance parameters of lithium ion battery, finally cause battery can't continue to use, more can cause very big potential safety hazard to battery.Therefore, specialized designs is a kind of at lithium ion battery negative post and battery lid riveted joint hermetically-sealed construction, makes its air-tightness that can satisfy battery good and to be convenient to the production and processing manufacturing be the major issue that needs to be resolved hurrily present stage.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of lithium ion battery negative post riveted joint hermetically-sealed construction.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of lithium ion battery negative post riveted joint hermetically-sealed construction, comprise negative terminal, last insulation cushion, following insulation cushion and battery lid, also comprise seal washer, described negative terminal penetrates the pole detent on seal washer and the battery lid successively and carries out riveted and fixed mutually, following insulation cushion penetrate negative terminal riveted joint and with last insulation cushion, battery lid and negative terminal riveted and fixed.
Preferably, above-mentioned lithium ion battery negative post riveted joint hermetically-sealed construction, described seal washer is " O " type.
Preferably, above-mentioned lithium ion battery negative post riveted joint hermetically-sealed construction, described seal washer is corrosion-resistant seal gasket.
Preferably, above-mentioned lithium ion battery negative post riveted joint hermetically-sealed construction, the material of described seal washer is anticorrosion silicon rubber (PFA) material.
Preferably, above-mentioned lithium ion battery negative post riveted joint hermetically-sealed construction, the material of described negative terminal is a fine copper nickel plating material.
The beneficial effects of the utility model are:
(1) above-mentioned lithium ion battery negative post riveted joint hermetically-sealed construction, increased the sealing of negative terminal and battery lid connecting portion greatly, increase seal washer by the contact site between the pole detent of negative terminal and battery lid, further externally portion connecting structure plays insulation and sealing property;
(2) riveted and fixed has prevented sand holes that welding occurred, has leaked destabilizing factor such as weldering, has strengthened the reliability of battery, has improved owing to the bad long-term circulation that brings of sealing serious problems such as capacity attenuation.
Description of drawings
Fig. 1 is the front view of a kind of lithium ion battery negative post riveted joint hermetically-sealed construction that provides of the utility model;
Fig. 2 is the A-A cutaway view of a kind of lithium ion battery negative post riveted joint hermetically-sealed construction that provides of the utility model.
Among the figure: 1-negative terminal 2-battery lid 3-goes up insulation cushion
Insulation cushion 5-seal washer under the 4-
Embodiment
For further specifying the utility model, existing conjunction with figs. is described in detail:
As depicted in figs. 1 and 2, described lithium ion battery negative post riveted joint hermetically-sealed construction, comprise negative terminal 1, last insulation cushion 3, following insulation cushion 4 and battery lid 2, also comprise seal washer 5, described negative terminal 1 penetrates the pole detent on seal washer 5 and the battery lid 2 successively and carries out riveted and fixed mutually, following insulation cushion 4 penetrate negative terminal 1 riveted joint and with last insulation cushion 3, battery lid 2 and negative terminal 1 riveted and fixed, described seal washer 5 is " O " type anticorrosion silicon rubber (PFA) seal gasket, and the material of described negative terminal 1 is a fine copper nickel plating material.
The assembling process of lithium ion battery negative post riveted joint hermetically-sealed construction described in the utility model:
At first seal washer 5 is penetrated negative terminal 1 during assembling and put into the pole detent of battery lid 2, to descend insulation cushion 4 to penetrate the riveted joint of negative terminal 1 then, and cooperate with last insulation cushion 3, battery lid 2 and negative terminal 1 riveted joint, last insulation cushion 3 cooperates with the interior seal washer of following insulation cushion 4 and battery lid 2 grooves, can guarantee the air-tightness of battery, prevent the intrusion of battery leakage and outside moisture; By the riveted joint mode negative terminal 1 is connected with battery cover board 2, compare traditional Welding Structure, increased the sealing of negative terminal 1 greatly with battery lid 2 connecting portions, by increasing " O " grommet type seal circle 5 in negative terminal 1 and battery lid 2 contacts site, further externally portion connecting structure plays insulation and sealing function, and riveted and fixed prevented sand holes that welding occurred, leak destabilizing factor such as weldering, strengthened the reliability of battery, serious problems such as capacity attenuation have been improved owing to the bad long-term circulation that brings of sealing.
The above only is a preferred implementation of the present 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 improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a lithium ion battery negative post is riveted hermetically-sealed construction, comprise negative terminal, last insulation cushion, following insulation cushion and battery lid, it is characterized in that: also comprise seal washer, described negative terminal penetrates the pole detent on seal washer and the battery lid successively and carries out riveted and fixed mutually, following insulation cushion penetrate negative terminal riveted joint and with last insulation cushion, battery lid and negative terminal riveted and fixed.
2. a kind of lithium ion battery negative post riveted joint hermetically-sealed construction according to claim 1, it is characterized in that: described seal washer is " O " type.
3. a kind of lithium ion battery negative post riveted joint hermetically-sealed construction according to claim 1 and 2, it is characterized in that: described seal washer is corrosion-resistant seal gasket.
4. a kind of lithium ion battery negative post riveted joint hermetically-sealed construction according to claim 3, it is characterized in that: the material of described seal washer is a silastic material.
5. a kind of lithium ion battery negative post riveted joint hermetically-sealed construction according to claim 1, it is characterized in that: the material of described negative terminal is a fine copper nickel plating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200970996U CN201466087U (en) | 2009-06-11 | 2009-06-11 | Lithium-ion battery cathode-post riveting sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200970996U CN201466087U (en) | 2009-06-11 | 2009-06-11 | Lithium-ion battery cathode-post riveting sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466087U true CN201466087U (en) | 2010-05-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200970996U Expired - Lifetime CN201466087U (en) | 2009-06-11 | 2009-06-11 | Lithium-ion battery cathode-post riveting sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201466087U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711594A (en) * | 2018-05-30 | 2018-10-26 | 东莞市奕东电子有限公司 | A kind of battery cover board |
| CN110459709A (en) * | 2019-08-29 | 2019-11-15 | 苏州中顶优品科技有限公司 | Cap sealed felt pad and its application |
| CN114171858A (en) * | 2021-12-10 | 2022-03-11 | 合肥力翔电池科技有限责任公司 | Pole column structure of circular lithium ion battery |
| 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 |
-
2009
- 2009-06-11 CN CN2009200970996U patent/CN201466087U/en not_active Expired - Lifetime
Cited By (5)
| 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 |
| CN108711594A (en) * | 2018-05-30 | 2018-10-26 | 东莞市奕东电子有限公司 | A kind of battery cover board |
| CN110459709A (en) * | 2019-08-29 | 2019-11-15 | 苏州中顶优品科技有限公司 | Cap sealed felt pad and its application |
| CN114171858A (en) * | 2021-12-10 | 2022-03-11 | 合肥力翔电池科技有限责任公司 | Pole column structure of circular lithium ion battery |
| CN114171858B (en) * | 2021-12-10 | 2024-03-29 | 合肥力翔电池科技有限责任公司 | Pole structure of circular lithium ion 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: 20100512 |