CN201408811Y - Improved structure of high-power lithium ion battery - Google Patents
Improved structure of high-power lithium ion battery Download PDFInfo
- Publication number
- CN201408811Y CN201408811Y CN2009200574246U CN200920057424U CN201408811Y CN 201408811 Y CN201408811 Y CN 201408811Y CN 2009200574246 U CN2009200574246 U CN 2009200574246U CN 200920057424 U CN200920057424 U CN 200920057424U CN 201408811 Y CN201408811 Y CN 201408811Y
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- positive
- negative
- tabs
- lithium ion
- 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
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Abstract
The utility model discloses an improved structure of a high-power lithium ion battery, which comprises a plurality of positive plates, a plurality of positive tabs, a plurality of negative plates, a plurality of tabs and a plurality of insulating diaphragms, wherein each positive plate and each negative plate are equipped with a plurality of corresponding tabs along respective length direction, and the positive tabs and the negative tabs on the positive plates and the negative plates of the battery are laid out on different sides and are shaped into trapezoids. After utilizing the above technical scheme, all the positive and negative tabs are disposed on different sides, and then the space between every two tabs is wider enough than that of the conventional battery, thereby greatly reducing internal resistance of the battery and increasing charging and discharging safety thereof.
Description
Technical field:
The utility model relates to a kind of high-power lithium ion battery.
Background technology:
In order to satisfy the charge-discharge performance of high-power lithium ion battery, the electric core of present high-power lithium ion battery adopts stacked or the lamination takeup type is made.Stacked operating procedure complexity, and even multi-disc lug respectively all along its length on every pole piece of lamination takeup type, the stacked battery of battery collection of this structure and the advantage of coiled battery, but there is shortcoming, this mainly shows because its positive and negative lug all is arranged on the same side when the pole piece laying, and distribute at interval, be subjected to the influence of this structure, the lug width can not be done too greatly, otherwise the too little easy initiation short circuit of the spacing between positive and negative lug, this just causes the internal resistance of cell bigger, has reduced the charge-discharge performance and the security performance of battery.
Summary of the invention:
The purpose of this utility model is in order to overcome the shortcoming of above-mentioned prior art, and a kind of simple in structure, high-power lithium ion battery that internal resistance is little is provided.
For achieving the above object, the technical scheme that the utility model provides is: a kind of structure-improved of high-power lithium ion battery, include multi-disc positive plate, anode ear, negative plate, negative electrode lug and place insulation diaphragm between the positive/negative plate, edge length direction separately is provided with the corresponding lug of multi-disc respectively on every positive and negative plate, and the positive and negative lug on the battery positive and negative plate is positioned at different sides when laying.
Described anode ear and negative electrode lug all are made into trapezoidal.
After adopting technique scheme,,, reduce the internal resistance of cell greatly, strengthen it and discharge and recharge and security performance to lug so there are enough spacings to do widelyer than traditional because positive and negative lug is in different sides.
Description of drawings:
Fig. 1 is the structural representation before the utility model lamination rolled type lithium electricity battery winding;
Fig. 2 is the structural representation behind the utility model lamination rolled type lithium electricity battery winding.
Embodiment:
Now elaborate the utility model in conjunction with the accompanying drawings:
The high-power lithium ion battery of present embodiment includes multi-disc positive plate 1, anode ear 11, negative plate 2, negative electrode lug 22 and places insulation diaphragm 3 between the positive and negative plate 1,2, edge length direction separately is provided with the corresponding lug of multi-disc respectively on every positive and negative plate 1,2, positive and negative lug 11,12 on the battery positive and negative plate 1,2 is positioned at different sides when laying, behind the lay-up they are wound into electric core.Described anode ear 11 and negative electrode lug 22 all are made into trapezoidal, because trapezoidal lug is better than the lug energising performance of other shape, improve the diffusivity of ion, also can reduce the internal resistance of cell.
By many lugs that evenly distribute on pole piece, the move distance in the time of can shortening lithium ion and discharge and recharge is realized discharging and recharging fast than single lug of traditional employing, and the run duration of lithium ion and distance all diminish, and significantly reduces the generation of heat.
Claims (2)
1. the structure-improved of a high-power lithium ion battery, include multi-disc positive plate (1), anode ear (11), negative plate (2), negative electrode lug (22) and place insulation diaphragm (3) between the positive and negative plate (1,2), edge length direction separately is provided with the corresponding lug of multi-disc respectively on every positive and negative plate (1,2), and it is characterized in that: the positive and negative lug (11,12) on the battery positive and negative plate (1,2) is positioned at different sides.
2. the structure-improved of a kind of high-power lithium ion battery according to claim 1, it is characterized in that: described anode ear (11) and negative electrode lug (22) all are made into trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200574246U CN201408811Y (en) | 2009-05-27 | 2009-05-27 | Improved structure of high-power lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200574246U CN201408811Y (en) | 2009-05-27 | 2009-05-27 | Improved structure of high-power lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201408811Y true CN201408811Y (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200574246U Expired - Fee Related CN201408811Y (en) | 2009-05-27 | 2009-05-27 | Improved structure of high-power lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201408811Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400281A (en) * | 2018-01-22 | 2018-08-14 | 中航锂电（洛阳）有限公司 | A kind of preparation method of pole piece |
| WO2021243581A1 (en) * | 2020-06-02 | 2021-12-09 | 宁德时代新能源科技股份有限公司 | Electrode assembly, related battery and apparatus thereof, and manufacturing method and manufacturing apparatus therefor |
| WO2021243583A1 (en) * | 2020-06-02 | 2021-12-09 | 宁德时代新能源科技股份有限公司 | Electrode assembly and related battery, device, manufacturing method, and manufacturing device |
| US11888123B2 (en) | 2019-03-26 | 2024-01-30 | Ningde Amperex Technology Ltd. | Electrode plate, battery cell, and battery |
-
2009
- 2009-05-27 CN CN2009200574246U patent/CN201408811Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400281A (en) * | 2018-01-22 | 2018-08-14 | 中航锂电（洛阳）有限公司 | A kind of preparation method of pole piece |
| US11888123B2 (en) | 2019-03-26 | 2024-01-30 | Ningde Amperex Technology Ltd. | Electrode plate, battery cell, and battery |
| WO2021243581A1 (en) * | 2020-06-02 | 2021-12-09 | 宁德时代新能源科技股份有限公司 | Electrode assembly, related battery and apparatus thereof, and manufacturing method and manufacturing apparatus therefor |
| WO2021243583A1 (en) * | 2020-06-02 | 2021-12-09 | 宁德时代新能源科技股份有限公司 | Electrode assembly and related battery, device, manufacturing method, and manufacturing device |
| CN114467211A (en) * | 2020-06-02 | 2022-05-10 | 宁德时代新能源科技股份有限公司 | Electrode assembly and related battery, device, manufacturing method and manufacturing device thereof |
| CN114503334A (en) * | 2020-06-02 | 2022-05-13 | 宁德时代新能源科技股份有限公司 | Electrode assembly and related battery, device, manufacturing method and manufacturing device thereof |
| US11978844B2 (en) | 2020-06-02 | 2024-05-07 | Contemporary Amperex Technology Co., Limited | Electrode assembly and related battery, battery module |
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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: 20100217 Termination date: 20180527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |