CN202534740U - Winding-type high-power battery core cell structure - Google Patents
Winding-type high-power battery core cell structure Download PDFInfo
- Publication number
- CN202534740U CN202534740U CN2012201569618U CN201220156961U CN202534740U CN 202534740 U CN202534740 U CN 202534740U CN 2012201569618 U CN2012201569618 U CN 2012201569618U CN 201220156961 U CN201220156961 U CN 201220156961U CN 202534740 U CN202534740 U CN 202534740U
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- negative
- base material
- positive
- battery core
- winding
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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 a winding-type high-power battery core cell structure. The winding-type battery core cell structure comprises a battery core cell, wherein the battery core cell is formed by winding a positive plate and negative plates; the positive plate and the negative plates are separated by diaphragms; a positive substrate is reserved on one side of the positive plate and is used as a positive tab area directly; a negative substrate is reserved on one side of each negative plate and is used as a negative tab area directly; the positive tab and the negative tabs protend symmetrically from the two sides of the core cell when the cell core is formed in a wound manner; and after the cell core winding is finished, the positive tab and the negative tabs are subjected to cutting edge processing so as to facilitate the immersion of the electrolyte. According to the utility model, the positive substrate and the negative substrates are directly used as tabs, so that the superior conductive performance of a substrate per se is reserved, each of the plates are used for forming a parallel structure, thereby achieving the high-power discharge, and the structural stability of the core cell per se and the consistency are greatly improved simultaneously.
Description
Technical field
The utility model relates to a kind of battery, particularly relates to a kind of core born of the same parents structure of convoluted high-power square lithium ion battery.
Background technology
The square lithium ion battery of lithium ion manufacturer production at present mostly adopts winding method to carry out the battery born of the same parents and makes; Before the coiling respectively on the empty paper tinsel of the base material that both positive and negative polarity is reserved welding extend positive and negative lug, each layer pole piece is to be the series connection form like this, battery current lead-through between pole piece end and lug when discharging and recharging need be passed through whole pole piece; Welding simultaneously can produce certain contact internal resistance; The size of solder side has determined the watt level of final battery, and the consistency of welding effect directly influences the consistency of internal resistance, and its impedance of difference of welding material is also variant; And there is certain reliability in welding, so welding back core born of the same parents' structural stability also weakens thereupon.
The utility model content
The utility model technical problem to be solved provides a kind of convoluted high power battery core born of the same parents structure that can realize that high power discharge, consistency are high, reliability is high.
In order to solve the problems of the technologies described above; The convoluted high power battery core born of the same parents structure that the utility model provides; Comprise positive plate and negative plate, separate with barrier film between positive plate and the negative plate, be reserved with the anodal ear field base material of formation positive pole in a side of described positive plate; Side at described negative plate is reserved with the negative pole ear field base material that constitutes negative pole, and described anodal ear field base material and negative pole ear field base material stretch out from core born of the same parents bilateral symmetry respectively when being wound into the core born of the same parents.
Described anodal ear field base material and negative pole ear field base material are cut with side cut after the completion of reeling.
Adopt the convoluted high power battery core born of the same parents structure of technique scheme, the positive and negative electrode base material directly as lug, has been kept the superior electric conductivity of base material itself; And each layer pole piece formed parallel structure; Just can make electric current lead each layer pole piece simultaneously when discharging and recharging like this, electric current can just can not be conducting to arbitrary location point of electric core through whole pole piece, and conducting speed promotes greatly; But high power discharge has improved consistency and the stability of structure of core born of the same parents own simultaneously greatly.Reel to accomplish the processing of cutting edge again of the anodal ear field base material that makes up the back and negative pole ear field base material, be beneficial to the immersion of electrolyte.Can be widely used in electrokinetic cells such as electric tool, electric bicycle.
Description of drawings
Fig. 1 is core born of the same parents schematic top plan view.
Fig. 2 is core born of the same parents front elevational schematic.
Fig. 3 is a positive plate applying structure sketch map.
Fig. 4 is a negative plate applying structure sketch map.
Embodiment
Below in conjunction with embodiment the utility model is described further.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4; Present embodiment battery born of the same parents are reeled with negative plate 2 by positive plate 1 and form; Separate with barrier film 3 between positive plate 1 and the negative plate 2, the anode dressing sector width is less than negative pole dressing sector width, and promptly anodal material area edge 7 is within negative pole material area edge 8; Negative pole dressing sector width is less than the barrier film width, and promptly negative pole material area edge 8 is within diaphragm edge 9; Side at positive plate 1 is reserved with anodal ear field base material 4; Side at negative plate 2 is reserved with negative pole ear field base material 5; Anodal ear field base material 4 stretches out from core born of the same parents bilateral symmetry respectively with negative pole ear field base material 5 when being wound into the core born of the same parents; Anodal ear field base material 4 whole formations are anodal, and negative pole ear field base material 5 integral body constitute negative pole; Processings of cutting edge again of anodal ear field base material 4 that reel to accomplish the back combination and negative pole ear field base material 5, anodal ear field base material 4 and negative pole ear field base material 5 are cut with side cut 6 after accomplishing reeling, and are beneficial to electrolyte from the 6 immersion core born of the same parents that cut edge.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, anodal ear field base material 4 and negative pole ear field base material 5 directly are used as lug, kept the superior electric conductivity of base material itself; And each layer pole piece formed parallel structure; Just can make electric current lead each layer pole piece simultaneously when discharging and recharging like this, electric current can just can not be conducting to arbitrary location point of electric core through whole pole piece, and conducting speed promotes greatly; But high power discharge has improved consistency and the stability of structure of core born of the same parents own simultaneously greatly.
Claims (2)
1. convoluted high power battery core born of the same parents structure; Comprise positive plate (1) and negative plate (2); Separate with barrier film (3) between positive plate (1) and the negative plate (2); It is characterized in that: be reserved with in a side of described positive plate (1) and constitute anodal anodal ear field base material (4), be reserved with the negative pole ear field base material (5) that constitutes negative pole in a side of described negative plate (2), described anodal ear field base material (4) and negative pole ear field base material (5) stretch out from core born of the same parents bilateral symmetry respectively when being wound into the core born of the same parents.
2. convoluted high power battery core born of the same parents structure according to claim 1 is characterized in that: described anodal ear field base material (4) and negative pole ear field base material (5) are cut with side cut (6) after the completion of reeling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201569618U CN202534740U (en) | 2012-04-13 | 2012-04-13 | Winding-type high-power battery core cell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201569618U CN202534740U (en) | 2012-04-13 | 2012-04-13 | Winding-type high-power battery core cell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534740U true CN202534740U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201569618U Expired - Fee Related CN202534740U (en) | 2012-04-13 | 2012-04-13 | Winding-type high-power battery core cell structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766941A (en) * | 2014-01-03 | 2015-07-08 | 罗伯特·博世有限公司 | Electrode for battery cell |
-
2012
- 2012-04-13 CN CN2012201569618U patent/CN202534740U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766941A (en) * | 2014-01-03 | 2015-07-08 | 罗伯特·博世有限公司 | Electrode for battery cell |
| CN104766941B (en) * | 2014-01-03 | 2019-11-15 | 罗伯特·博世有限公司 | Electrode for secondary battery unit |
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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 |
Granted publication date: 20121114 Termination date: 20180413 |
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| CF01 | Termination of patent right due to non-payment of annual fee |