CN201167106Y - High-power stacking type pole ear structure for dynamic lithium battery - Google Patents
High-power stacking type pole ear structure for dynamic lithium battery Download PDFInfo
- Publication number
- CN201167106Y CN201167106Y CNU2008200833994U CN200820083399U CN201167106Y CN 201167106 Y CN201167106 Y CN 201167106Y CN U2008200833994 U CNU2008200833994 U CN U2008200833994U CN 200820083399 U CN200820083399 U CN 200820083399U CN 201167106 Y CN201167106 Y CN 201167106Y
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- Prior art keywords
- ear
- lithium battery
- welded
- negative
- hold down
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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 a high-power stacked pole ear structure of a dynamical lithium battery. An anode aluminum pole ear and a cathode copper pole ear which are positioned at a connection part are respectively compacted and attached to an anode ear and a cathode ear through compacting devices, so that both pole ears on stacked pole pieces are firmly welded on externally connected pole ears, the contact between the welded parts is complete and compact, and the internal resistance is low; therefore, the heat rate is low, and the pole ear structure is suitable for high-rate discharge of the battery.
Description
Technical field
The utility model relates to a kind of lithium ion battery, especially relates to a kind of high-power cascade type dynamic lithium battery extreme ear structure.
Background technology
Present lamination type lithium ion battery battery core is to be separated by barrier film by multi-disc positive plate and multi-disc negative plate to be laminated, the technology that it all adopts stacked lug and switching lug directly to weld mostly, in batch process, there are some defectives in this structure: not prison welding is easy to occur rosin joint admittedly, easily strike sparks during welding, weld part breakage or the like problem, and the welding burr is many, the weld part internal resistance is higher cause for high-power large-current electric core it to discharge it produces bigger heat and makes electric core temperature height, in addition, poor stability in batch process causes the internal resistance of different product to differ bigger.
Summary of the invention
The utility model mainly be solve the existing in prior technology not prison welding, the weld part internal resistance is higher and poor stability, for the high technical problem of high-power its discharge temp of big electric current, a kind of high-power cascade type dynamic lithium battery extreme ear structure is provided.High-power cascade type dynamic lithium battery extreme ear structure, its anodal aluminium pole ears that will be in connecting portion by hold down gag compresses and fits in anode ear, the negative pole copper polar ear compresses and fits in negative electrode lug, make the lug on the stacked pole piece all firmly be welded on the external lug, make that the weld part contact is complete, fine and close, internal resistance is low, thereby caloric value is few, is fit to the battery high-multiplying power discharge.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of high-power cascade type dynamic lithium battery extreme ear structure, it comprise be located at by some positive/negative plates separate by barrier film and the ion battery electricity core that is laminated on anodal aluminium pole ears, negative pole copper polar ear, and the anode ear that is welded and connected with anodal aluminium pole ears, with the negative electrode lug that the negative pole copper polar ear is welded and connected, the connecting portion outside of described anodal aluminium pole ears and anode ear is provided with anodal aluminium pole ears is compressed the hold down gag that fits in anode ear; The connecting portion outside of described negative pole copper polar ear and negative electrode lug is provided with the negative pole copper polar ear is compressed the hold down gag that fits in negative electrode lug.Anodal aluminium pole ears and anode ear, negative pole copper polar ear and negative electrode lug adopt the mode of ultrasonic bonding or electric resistance welding welding to be welded as a whole; Before the welding, hold down gag can compress the anodal aluminium pole ears that is in connecting portion and fit in anode ear, the negative pole copper polar ear compresses and fits in negative electrode lug, make the lug on the stacked pole piece all firmly be welded on the external lug, this structure, make anodal aluminium pole ears and anode ear, the spark that produces when negative pole copper polar ear and negative electrode lug welding is few, burr is few, short circuit and micro-short circuit ratio have been reduced significantly, the solder bond bilge construction is smooth simultaneously, firmly, do not have damaged, making has bigger relative contact long-pending between the lug of connection, can reach the effect that the no small pieces in long-time vibration back drop; In addition, this structure makes weld part obtain more consistent welding effect, makes to make the internal resistance of different product differ less by good stability in batch process, improves the stability of electric core performance.
As preferably, described hold down gag is the metallic plate that is arranged on stacked lug both sides and is welded as a whole with it.The metallic plate of both sides is clamped connecting portion, and this structure is easy to make, and stacked lug small pieces are compressed firmly, and two metallic plates also are easy to be welded as a whole.
The anodal aluminium pole ears that hold down gag of the present utility model can adopt alternative two metallic plates of other modes will be in connecting portion compresses and fits in anode ear, the negative pole copper polar ear compresses and fits in negative electrode lug; it has the know-why identical with the utility model; and obtain the technique effect that is equal to the utility model, still belong within the protection range of the present utility model.
Therefore, the utlity model has rational in infrastructure, be easy to characteristics such as making, especially have have between the lug of lug joint portion sound construction, connection bigger relative contact long-pending, can reach long-time vibration afterwards no small pieces drop, produce in batches the stable beneficial effect of internal resistance.
Description of drawings
Accompanying drawing 1 is the schematic diagram of electric core and external lug;
Accompanying drawing 2 is schematic diagrames that external lug inserts cell polar ear;
Accompanying drawing 3 is a kind of structural representations of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the high-power cascade type dynamic lithium battery of the utility model extreme ear structure, shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, it comprise be located at by some positive/negative plates separate by barrier film and the ion battery electricity core 3 that is laminated on anodal aluminium pole ears 5, negative pole copper polar ear 4, and the anode ear 2 that is welded and connected with anodal aluminium pole ears 5, the negative electrode lug 1 that is welded and connected with negative pole copper polar ear 4.
The connecting portion outside of anodal aluminium pole ears 5 and anode ear 2 is provided with anodal aluminium pole ears 5 is compressed the hold down gag 7 that fits in anode ear 2; The connecting portion outside of negative pole copper polar ear 4 and negative electrode lug 1 is provided with negative pole copper polar ear 4 is compressed the hold down gag 6 that fits in negative electrode lug 1.Hold down gag 6, the metallic plate of hold down gag 7 for being arranged on stacked lug both sides and being welded as a whole with it.
Claims (2)
1, a kind of high-power cascade type dynamic lithium battery extreme ear structure, comprise be located at by some positive/negative plates separate by barrier film and the ion battery electricity core (3) that is laminated on anodal aluminium pole ears (5), negative pole copper polar ear (4), and the anode ear (2) that is welded and connected with anodal aluminium pole ears (5), with the negative electrode lug (1) that negative pole copper polar ear (4) is welded and connected, it is characterized in that: the connecting portion outside of described anodal aluminium pole ears (5) and anode ear (2) is provided with anodal aluminium pole ears (5) is compressed the hold down gag (7) that fits in anode ear (2); The connecting portion outside of described negative pole copper polar ear (4) and negative electrode lug (1) is provided with negative pole copper polar ear (4) is compressed the hold down gag (6) that fits in negative electrode lug (1).
2, high-power cascade type dynamic lithium battery extreme ear structure according to claim 1 is characterized in that: described hold down gag (6), the metallic plate of hold down gag (7) for being arranged on stacked lug both sides and being welded as a whole with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200833994U CN201167106Y (en) | 2008-02-15 | 2008-02-15 | High-power stacking type pole ear structure for dynamic lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200833994U CN201167106Y (en) | 2008-02-15 | 2008-02-15 | High-power stacking type pole ear structure for dynamic lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201167106Y true CN201167106Y (en) | 2008-12-17 |
Family
ID=40192497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200833994U Expired - Fee Related CN201167106Y (en) | 2008-02-15 | 2008-02-15 | High-power stacking type pole ear structure for dynamic lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201167106Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635342A (en) * | 2009-08-18 | 2010-01-27 | 长春锂源新能源科技有限公司 | Method for fastening connection between pole lug and pole post of lithium ion power battery |
| CN101814592A (en) * | 2010-03-12 | 2010-08-25 | 珠海锂源动力投资有限公司 | Method for connecting polar lug and polar column of lithium ion battery |
| CN101814591A (en) * | 2010-03-12 | 2010-08-25 | 珠海锂源动力投资有限公司 | Method for connecting polar lug and polar column of lithium ion battery |
| CN113644389A (en) * | 2020-04-27 | 2021-11-12 | 北京小米移动软件有限公司 | Battery module and manufacturing method thereof |
-
2008
- 2008-02-15 CN CNU2008200833994U patent/CN201167106Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635342A (en) * | 2009-08-18 | 2010-01-27 | 长春锂源新能源科技有限公司 | Method for fastening connection between pole lug and pole post of lithium ion power battery |
| CN101814592A (en) * | 2010-03-12 | 2010-08-25 | 珠海锂源动力投资有限公司 | Method for connecting polar lug and polar column of lithium ion battery |
| CN101814591A (en) * | 2010-03-12 | 2010-08-25 | 珠海锂源动力投资有限公司 | Method for connecting polar lug and polar column of lithium ion battery |
| CN113644389A (en) * | 2020-04-27 | 2021-11-12 | 北京小米移动软件有限公司 | Battery module and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20130215 |