CN202930491U - Electric core structure of lithium ion power battery - Google Patents
Electric core structure of lithium ion power battery Download PDFInfo
- Publication number
- CN202930491U CN202930491U CN2012205315678U CN201220531567U CN202930491U CN 202930491 U CN202930491 U CN 202930491U CN 2012205315678 U CN2012205315678 U CN 2012205315678U CN 201220531567 U CN201220531567 U CN 201220531567U CN 202930491 U CN202930491 U CN 202930491U
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- CN
- China
- Prior art keywords
- electric core
- lithium ion
- battery
- power battery
- ion power
- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses an electric core structure of a lithium ion power battery. An electric core consists of a plurality of electrode groups which are connected in parallel with one another, wherein a positive electrode tab and a negative electrode tab are arranged on each electrode group; and adjacent electrode groups of positive electrode tabs and negative electrode tabs are staggered from one another. According to the electric core structure of the lithium ion power battery, due to a design that the adjacent electrode groups of positive electrode tabs and negative electrode tabs are staggered from one another, the positions of the electrode tabs of the electrode groups of the electric core are optimized; the conventional method of mutually stacking the electrode tabs of the electrode groups of the electric core is changed, so that the inner resistance of the battery is effectively reduced, the battery assembling reliability is improved, and the utilization rate of a battery space is increased; and moreover, the comprehensive electric properties such as high-magnitude charging and discharging property of the power battery are improved, and the electric core structure can meet a demand of large-scale industrial production..
Description
Technical field
The utility model relates to electrokinetic cell and makes field, especially a kind of electric core of lithium ion power battery structure.
Background technology
Along with the development of lithium ion battery industry, the maturation of electric vehicle engineering and day by day perfect, the application of power lithium-ion battery is also more and more extensive, and the thing followed is that people are to the concern of lithium ion battery power-performance.
For existing electrical core of power battery, generally all adopt the mode of the overlapped connection of a plurality of lugs, this just makes the drainage piece contact area of cell polar ear and battery cover board little, causes the internal resistance of cell higher, affects the high-power efficient that discharges and recharges.Simultaneously, due to the overlapped connection of a plurality of lugs, cause the lug integral thickness to increase, be not easy to be connected with battery cover board drainage piece and connect, but also cause the reduction of battery container space availability ratio.Therefore, the structure of a kind of reasonable layout battery core of specialized designs utmost point group tab welding position is to have very much the production practices meaning.
The utility model content
The purpose of this utility model is to avoid defective of the prior art, provides a kind of distribution of cell polar ear comparatively reasonable, thereby reduces the lug integral thickness, improves the electric core of lithium ion power battery structure of battery container space availability ratio.
For addressing the above problem, a kind of electric core of lithium ion power battery structure of the present utility model, this battery core is composed in parallel by a plurality of utmost point groups, is provided with positive and negative lug on each utmost point group, it is characterized in that: interlaced setting between the positive and negative lug of each of described consecutive roots group.
The number of described utmost point group is even number.
Described battery core is takeup type, is composed in parallel by a plurality of takeup type utmost point groups.
Described battery core is stacked, by a plurality of positive/negative plate groups stacked composition.
Adopt the electric core of lithium ion power battery structure of the utility model structure; the design of interlaced setting between each positive and negative lug of employing consecutive roots group; optimized the position of battery core utmost point group lug; change traditional overlapped method of battery core utmost point group lug; effectively reduce the internal resistance of cell, improved the reliability of battery assembling, improved the utilance of battery space; improve simultaneously the comprehensive electrochemical properties such as electrokinetic cell high rate charge-discharge pond performance, be fit to the needs that large-scale industrial is produced.
Description of drawings
Fig. 1 is the front view of the utility model electric core of lithium ion power battery structure.
Fig. 2 is the stereogram of the utility model electric core of lithium ion power battery structure.
In figure: utmost point group 100; Anode ear 1; Negative electrode lug 2
Embodiment
In order to make those skilled in the art person understand better technical solutions of the utility model, the utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, 2, take battery core as stacked as example, electric core of lithium ion power battery structure of the present utility model, is provided with anode ear 1 and negative electrode lug 2 at stacked composition of utmost point group 100 by a plurality of positive/negative plates form on each utmost point group 100.
Interlaced setting between each positive and negative lug 1,2 of described adjacent utmost point group.
The number of described utmost point group 100 is even number, and namely battery core is composed in parallel by even number utmost point group 100.
Adopt the electric core of lithium ion power battery structure of the utility model structure; the design of interlaced setting between each positive and negative lug of employing consecutive roots group; optimized the position of battery core utmost point group lug; change traditional overlapped method of battery core utmost point group lug; effectively reduce the internal resistance of cell, improved the reliability of battery assembling, improved the utilance of battery space; improve simultaneously the comprehensive electrochemical properties such as electrokinetic cell high rate charge-discharge pond performance, be fit to the needs that large-scale industrial is produced.
Certainly, electric core of lithium ion power battery structure of the present utility model, its battery core can also be takeup type, is namely composed in parallel by a plurality of takeup type utmost point groups.
And in this wound form battery core, interlaced setting between each positive and negative lug of adjacent utmost point group, and the number of utmost point group is even number, namely this wound form battery core is composed in parallel by even number utmost point group.
The above is only 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 principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. electric core of lithium ion power battery structure, this battery core is composed in parallel by a plurality of utmost point groups, is provided with positive and negative lug on each utmost point group, it is characterized in that: interlaced setting between the positive and negative lug of each of described consecutive roots group.
2. electric core of lithium ion power battery structure as claimed in claim 1, it is characterized in that: the number of described utmost point group is even number.
3. electric core of lithium ion power battery structure as claimed in claim 1 or 2, it is characterized in that: described battery core is takeup type, is composed in parallel by a plurality of takeup type utmost point groups.
4. electric core of lithium ion power battery structure as claimed in claim 1 or 2, it is characterized in that: described battery core is stacked, by a plurality of positive/negative plate groups stacked composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205315678U CN202930491U (en) | 2012-10-17 | 2012-10-17 | Electric core structure of lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205315678U CN202930491U (en) | 2012-10-17 | 2012-10-17 | Electric core structure of lithium ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930491U true CN202930491U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205315678U Expired - Lifetime CN202930491U (en) | 2012-10-17 | 2012-10-17 | Electric core structure of lithium ion power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024065795A1 (en) * | 2022-09-30 | 2024-04-04 | 厦门新能达科技有限公司 | Battery pack and electric device |
-
2012
- 2012-10-17 CN CN2012205315678U patent/CN202930491U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024065795A1 (en) * | 2022-09-30 | 2024-04-04 | 厦门新能达科技有限公司 | Battery pack and electric device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220129 Address after: 266500 Minshan Road, Huangdao District, Qingdao, Shandong Patentee after: LISHEN (QINGDAO) NEW ENERGY CO.,LTD. Address before: 300384 Tianjin Xiqing District Binhai hi tech Industrial Development Zone (outer ring) 38 Haitai South Road Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
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| CX01 | Expiry of patent term |