CN204189868U - A kind of electrode structure of lithium battery - Google Patents
A kind of electrode structure of lithium battery Download PDFInfo
- Publication number
- CN204189868U CN204189868U CN201420685322.XU CN201420685322U CN204189868U CN 204189868 U CN204189868 U CN 204189868U CN 201420685322 U CN201420685322 U CN 201420685322U CN 204189868 U CN204189868 U CN 204189868U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- lug
- spacer ring
- electrode structure
- join domain
- 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 - 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of electrode structure of lithium battery, comprise the first lug, the first pole piece and the second pole piece, first lug is connected with the first pole piece and exceeds its top, second pole piece at least along short transverse higher than the first pole piece, the mode that second pole piece aligns with lower end with the first pole piece is stacking, first pole piece comprises join domain, first lug comprises the connecting portion be positioned at bottom it, and be fixed on join domain by connecting portion, also comprise spacer ring and spacer ring fixed structure, it can by the second pole piece and the first lug be nonconducting separates.The utility model decreases the operational risk brought because of repeatedly bonding, and be conducive to the yields and the production efficiency that improve battery, structure is simple, is easy to practical.
Description
Technical field
The utility model relates to a kind of electrode structure of lithium battery.
Background technology
Lithium battery in the fabrication process, lug is needed to be connected with corresponding positive/negative plate, again by stacking for positive/negative plate formation battery core, and cathode pole piece generally can higher than anode pole piece, in order to avoid the part that exceeds of negative plate touches positive pole ear and occurs the situation of short circuit, in prior art be generally positive pole ear in cathode pole piece on insulation system is set respectively for intercepting electric current, but the combination of this three is substep, namely the installation carrying out at least twice insulation system is needed, insulation system may be made in process of production to install because of operate miss not in place, cause the generation of security incident, so need a kind of safer electrode structure at present.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of electrode structure of lithium battery, and it only just can need can complete insulation between cathode pole piece and positive pole ear through a bonding process, decreases the risk that operate miss brings.
The utility model solves the technical scheme that its technical problem adopts:
A kind of electrode structure of lithium battery, comprise the first lug, the first pole piece and the second pole piece, first lug is connected with the first pole piece and exceeds its top, second pole piece at least along short transverse higher than the first pole piece, the mode that second pole piece aligns with lower end with the first pole piece is stacking, first pole piece comprises join domain, first lug comprises the connecting portion be positioned at bottom it, and be fixed on join domain by connecting portion, also comprise spacer ring and spacer ring fixed structure, it can by the second pole piece and the first lug be nonconducting separates.
As the further improved procedure of such scheme, spacer ring covers the upper part of the second pole piece.
As the further improved procedure of such scheme, spacer ring fixed structure at least covers the part that the first lug contacts with the second pole piece.
As the further improved procedure of such scheme, join domain is the rectangular area being positioned at the first pole piece outermost end.
As the further improved procedure of such scheme, spacer ring fixed structure is insulating tape.
As the further improved procedure of such scheme, the first lug be welded on mode on join domain with connecting portion and the first pole piece affixed.
The beneficial effects of the utility model are:
Decrease the operational risk brought because of repeatedly bonding, be conducive to the yields and the production efficiency that improve battery, structure is simple, is easy to practical.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the overall structure schematic diagram of the utility model embodiment;
Fig. 2 is the front view of the utility model first pole piece embodiment;
Fig. 3 is the front view of the utility model first lug embodiment.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, scheme and effect fully.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
It should be noted that, if no special instructions, when a certain feature is called as " fixing ", " connection " in another feature, it can directly be fixed, be connected in another feature, also indirectly can fix, be connected in another feature.In addition, it is only relative to the mutual alignment relation of each part of the utility model in accompanying drawing that the upper and lower, left and right used in the utility model etc. describe.
In addition, unless otherwise defined, all technology used herein are identical with the implication that those skilled in the art understand usually with scientific terminology.The term used in specification is herein to describe specific embodiment, instead of in order to limit the present invention.Term as used herein " and/or " comprise the arbitrary combination of one or more relevant Listed Items.
In prior art, battery core is by positive plate and negative plate is stacking forms, and pole piece is respectively equipped with the lug exceeding its upper end, general, the height of negative plate can higher than positive plate, and when the two is fitted in the mode of lower end alignment, the upper end of negative plate can exceed a positive plate part.
With reference to Fig. 1, Fig. 2 and Fig. 3, show the schematic diagram of the utility model electrode structure, comprise the first pole piece, in the present embodiment, the first pole piece, for being preferably anode pole piece 10, is provided with join domain 11 thereon, preferably, join domain 11 is for being positioned at the rectangular area of anode pole piece 10 outermost end.
Comprise the first lug, corresponding to anode pole piece 10, it is positive pole ear 20, which is provided with the connecting portion 21 being positioned at lower end, described lug is fixed on join domain 11 by connecting portion, forms lower end and pole piece and is fixed as one, and upper end can the positive plate structure of pole piece activity relatively, preferably, the affixed mode of the two is welding.
Also comprise unshowned second pole piece stacking with the first pole piece 10, in the present embodiment, the second pole piece is cathode pole piece, and itself and positive pole ear 20 are opened by spacer ring 30 and spacer ring fixed structure are isolated.
As a preferred embodiment of the present utility model, spacer ring 30 is connected with positive pole ear 20 by spacer ring fixed structure, and between cathode pole piece and positive pole ear 20, cover the upper part of cathode pole piece, be interposed between both sides by the two nonconducting point, spacer ring fixed structure clad anode lug 20 itself and outer surface partly except connecting portion 21 except, preferably, spacer ring fixed structure is with positive pole ear 20 for starting point, and the anti-opposite side being labelled to anode pole piece 10, increases insulation scope.
Preferred further, spacer ring fixed structure is insulating tape 40.
Adopt in this way, only just need can complete insulation between cathode pole piece and positive pole ear through a bonding process, decrease the risk of operate miss.
More than that better enforcement of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (6)
1. the electrode structure of a lithium battery, comprise the first lug, first pole piece and the second pole piece, described first lug is connected with the first pole piece and exceeds its top, described second pole piece at least along short transverse higher than described first pole piece, the mode that described second pole piece and the first pole piece align with lower end is stacking, it is characterized in that: described first pole piece comprises join domain, described first lug comprises the connecting portion be positioned at bottom it, and be fixed on join domain by described connecting portion, also comprise spacer ring and spacer ring fixed structure, it can by the second pole piece and the first lug be nonconducting separates.
2. electrode structure according to claim 1, is characterized in that: described spacer ring covers the upper part of described second pole piece.
3. electrode structure according to claim 2, is characterized in that: described spacer ring fixed structure at least covers the part that described first lug contacts with the second pole piece.
4. the electrode structure according to any one of claims 1 to 3, is characterized in that: described join domain is the rectangular area being positioned at described first pole piece outermost end.
5. the electrode structure according to any one of claim 4, is characterized in that: described spacer ring fixed structure is insulating tape.
6. the electrode structure according to any one of claim 4, is characterized in that: described first lug be welded on mode on described join domain with connecting portion and described first pole piece affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420685322.XU CN204189868U (en) | 2014-11-14 | 2014-11-14 | A kind of electrode structure of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420685322.XU CN204189868U (en) | 2014-11-14 | 2014-11-14 | A kind of electrode structure of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204189868U true CN204189868U (en) | 2015-03-04 |
Family
ID=52621842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420685322.XU Expired - Fee Related CN204189868U (en) | 2014-11-14 | 2014-11-14 | A kind of electrode structure of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204189868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872250A (en) * | 2018-07-23 | 2018-11-23 | 广州超音速自动化科技股份有限公司 | Lithium battery pole ear welds anti-detection method and tab welding detection system |
| CN113725496A (en) * | 2021-09-01 | 2021-11-30 | 骆驼集团新能源电池有限公司 | Ternary system start-stop lithium ion battery and preparation method thereof |
-
2014
- 2014-11-14 CN CN201420685322.XU patent/CN204189868U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872250A (en) * | 2018-07-23 | 2018-11-23 | 广州超音速自动化科技股份有限公司 | Lithium battery pole ear welds anti-detection method and tab welding detection system |
| CN113725496A (en) * | 2021-09-01 | 2021-11-30 | 骆驼集团新能源电池有限公司 | Ternary system start-stop lithium ion battery and preparation method thereof |
| CN113725496B (en) * | 2021-09-01 | 2024-04-19 | 骆驼集团新能源电池有限公司 | Ternary system start-stop lithium ion battery and preparation method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20201114 |