CN202285261U - Positive electrode plate electrode tab for power battery - Google Patents
Positive electrode plate electrode tab for power battery Download PDFInfo
- Publication number
- CN202285261U CN202285261U CN2011203607925U CN201120360792U CN202285261U CN 202285261 U CN202285261 U CN 202285261U CN 2011203607925 U CN2011203607925 U CN 2011203607925U CN 201120360792 U CN201120360792 U CN 201120360792U CN 202285261 U CN202285261 U CN 202285261U
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- CN
- China
- Prior art keywords
- positive electrode
- electrode plate
- power battery
- aluminium foil
- battery
- 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 lithium ion battery manufacture, in particular to a positive electrode plate electrode tab for a power battery. The positive electrode plate electrode tab for the power battery comprises a positive electrode tab and a positive electrode plate, wherein the positive electrode plate consists of an aluminum foil and positive electrode powder layers coated on the upper surface and the lower surface of the aluminum foil. The positive electrode plate electrode tab for the power battery is characterized in that blank aluminum foils which are not coated with the positive electrode powder layer are reserved on the upper surface and the lower surface of the front end region of the positive electrode plate, in addition, the length of the blank aluminum foil on one surface is greater than that of the blank aluminum foil on the other surface, blank aluminum foils which are not coated with the positive electrode powder layer are also reserved on the upper surface and the lower surface of the middle region of the positive electrode plate, the number of the electrode tabs is two, and the two electrode tabs are respectively welded at the front end and the middle blank aluminum foil parts. The positive electrode plate electrode tab for the power battery has the beneficial effects that through the positive electrode plate electrode tag structure of the power battery, the design method of the battery electrode plate electrode tab is optimized, the traditional coating and electrode tab welding position is changed, the battery internal resistance is effectively reduced, the integral electric performance such as high-multiplying-power charging and discharging performance and the like of the power battery can be improved, and the scaled industrialized production is convenient to realize.
Description
Technical field
The utility model relates to technical field of lithium-ion battery, relates in particular to a kind of power battery anode sheet lug.
Background technology
For existing pole piece of power battery lug, generally all adopt the single lug of a plurality of utmost point groups to connect; As shown in Figure 1; Single lug is welded on an end of anode pole piece; There is following shortcoming in this kind utmost point group: when high current charge-discharge, because the collector cross section causes the battery caloric value to increase for a short time, battery is caused great damage and influences the high-power efficient that discharges and recharges.Therefore specialized designs a kind ofly increases the battery pole piece collector, rationally the distribute structure of lug welding position is to have very much the production practices meaning.
The utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned technology, and a kind of power battery anode sheet lug is provided, and changes the traditional coating and the welding position of lug, reduces the internal resistance of battery, thereby improves the useful life of battery.
The utility model is for realizing above-mentioned purpose; Adopt following technical scheme: a kind of power battery anode sheet lug; Comprise anode ear and positive plate; Said positive plate is made up of aluminium foil and the anodal bisque that is coated on the aluminium foil upper and lower surfaces; It is characterized in that: said positive plate front end area upper and lower surfaces leaves the blank aluminium foil length on blank aluminium foil and a surface of the anodal bisque of uncoated greater than the blank aluminium foil on another surface, and positive plate zone line upper and lower surfaces also leaves the blank aluminium foil of the anodal bisque of uncoated; Said lug is two, is welded in front end and intermediate blank aluminium foil place respectively.
The blank aluminium foil length of said positive plate front end area one side is 3 times of opposite side.
The beneficial effect of the utility model is: through above-mentioned power battery anode sheet lug structure; Optimize the method for designing of battery pole piece lug; Change traditional coating and lug welding position; Effectively reduce the internal resistance of cell, can improve comprehensive electrochemical properties such as electrokinetic cell high rate charge-discharge pond performance, be convenient to large-scale industrial production.
Description of drawings
Fig. 1 is the structural representation of utmost point group in the prior art;
Fig. 2 is a front view of the prior art;
Fig. 3 is the profile of the utility model;
Fig. 4 is the front view 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 power battery anode sheet lug; Comprise anode ear 1 and positive plate 2, said positive plate is made up of aluminium foil 3 and the anodal bisque 4 that is coated on the aluminium foil upper and lower surfaces, and positive plate adopts special-shaped application pattern; Said positive plate front end area upper and lower surfaces leaves the blank aluminium foil length on blank aluminium foil 5 and a surface of the anodal bisque of uncoated greater than the blank aluminium foil on another surface, and positive plate zone line upper and lower surfaces also leaves the blank aluminium foil 6 of the anodal bisque of uncoated; Said lug is two, is welded in front end and intermediate blank aluminium foil 5,6 places respectively.The blank aluminium foil length of said positive plate front end area one side is 3 times of opposite side; Reaching the width that finally winds battery utmost point group according to the width of rolling up pin decides; Blank paper tinsel will center on battery utmost point group one girth, finally forms the outermost end of positive plate in utmost point group, the anodal negative pole that coats of common name.
Through above-mentioned power battery anode sheet lug structure; Optimize the method for designing of battery pole piece lug, change traditional coating and lug welding position, effectively reduce the internal resistance of cell; Can improve comprehensive electrochemical properties such as electrokinetic cell high rate charge-discharge pond performance, be convenient to large-scale industrial production.
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 (2)
1. power battery anode sheet lug; Comprise anode ear and positive plate; Said positive plate is made up of aluminium foil and the anodal bisque that is coated on the aluminium foil upper and lower surfaces; It is characterized in that: said positive plate front end area upper and lower surfaces leaves the blank aluminium foil length on blank aluminium foil and a surface of the anodal bisque of uncoated greater than the blank aluminium foil on another surface, and positive plate zone line upper and lower surfaces also leaves the blank aluminium foil of the anodal bisque of uncoated; Said lug is two, is welded in front end and intermediate blank aluminium foil place respectively.
2. power battery anode sheet lug according to claim 1 is characterized in that: the blank aluminium foil length of said positive plate front end area one side is 3 times of opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203607925U CN202285261U (en) | 2011-09-23 | 2011-09-23 | Positive electrode plate electrode tab for power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203607925U CN202285261U (en) | 2011-09-23 | 2011-09-23 | Positive electrode plate electrode tab for power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202285261U true CN202285261U (en) | 2012-06-27 |
Family
ID=46296773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203607925U Expired - Lifetime CN202285261U (en) | 2011-09-23 | 2011-09-23 | Positive electrode plate electrode tab for power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202285261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159206A (en) * | 2015-04-13 | 2016-11-23 | 宁德新能源科技有限公司 | Method for preparing lithium ion battery pole pieces |
-
2011
- 2011-09-23 CN CN2011203607925U patent/CN202285261U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159206A (en) * | 2015-04-13 | 2016-11-23 | 宁德新能源科技有限公司 | Method for preparing lithium ion battery pole pieces |
| CN106159206B (en) * | 2015-04-13 | 2019-03-29 | 宁德新能源科技有限公司 | Method for preparing lithium ion battery pole pieces |
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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: 20120627 |