CN2845181Y - Cylindrical soft packed batteries - Google Patents
Cylindrical soft packed batteries Download PDFInfo
- Publication number
- CN2845181Y CN2845181Y CNU2005200596868U CN200520059686U CN2845181Y CN 2845181 Y CN2845181 Y CN 2845181Y CN U2005200596868 U CNU2005200596868 U CN U2005200596868U CN 200520059686 U CN200520059686 U CN 200520059686U CN 2845181 Y CN2845181 Y CN 2845181Y
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- battery
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- plastic packaged
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- Y02E60/122—
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to the technical field of a lithium ion battery, particularly a lithium ion battery adopting a cylindrical soft package. A cylindrical battery body is composed of an aluminium-plastic package outside the battery body and a lithium ion battery core inside the aluminium-plastic package, wherein the battery core is wound up into a cylinder to be wrapped in the aluminium-plastic package. After the utility model adopts the technical scheme and the aluminium-plastic package with soft texture, rigid package products can be reduced to solve the problem that the cost is increased by blasting; meanwhile, the utility model adopts the battery with cylindrical soft package, the maximum volume of a product can be increased effectively (under the condition of equal surface area, the volume of a cylinder is larger than that of an oblong), and thus, the relative capacity of the battery can be enhanced.
Description
Technical field:
The utility model relates to technical field of lithium ion, refers in particular to a kind of lithium ion battery that adopts cylindrical flexible package.
Background technology:
The packing that lithium rechargeable battery adopted in the market is nothing more than dual mode: a kind of is the hard packaging lithium ionic cell (its profile is generally cylindrical) that adopts stainless steel case or aluminum hull; Another kind is exactly the flexible packing lithium ion battery (its profile is generally block cuboid) that adopts aluminium plastic composite packaging.For hard packaging lithium ionic cell, the material of its external packing is harder, because battery is taking place damagedly to reveal, overcharges, can produce gas under the situation such as high temperature, this gas will cause burning, the blast of battery as if untimely release.For this reason, usually the hard packing battery product all can adopt safety device, this safety device generally is divided into two kinds: a kind of employing on the battery container that punching press forms is carved with indentation, detect the fail safe of battery by hindering degree quarter, for example the patent No. is just to have announced a kind of " column type lithium cell anti-explosion safety housing " in 02245256.7 the Chinese patent specification; Another kind is to adopt housing to be provided with an explosionproof hole, and for example the patent No. is just to have announced " a kind of lithium cell cover plate and manufacture method thereof with rupture pressure disc " in 01123958.1 the Chinese invention patent specification.It is that an explosion-proof covering board is set on lithium battery, this explosion-proof covering board is formed by cover plate matrix and foil assembly welding, on the cover board produce the aperture of certain diameter in advance, ultrasonic bonding foil around in the hole, before the ultrasonic bonding foil, after solder side is coated with fluid sealant, carry out ultrasonic bonding in advance,, reach the purpose of explosion under the certain pressure by the thickness of control foil and the size and the shape of explosionproof hole.
By content recited above as can be seen, adopt the lithium ion battery of rigid package must have perfect anti-explosion structure, and these anti-explosion structures are generally all very complicated, processs loaded down with trivial detailsly, cause the cost increase of product.And opposite, the anti-air-blowing of flexible package, the processing of leakage device are comparatively simply, fast.
The utility model content:
Technical problem to be solved in the utility model just is to overcome the shortcoming of the said goods, in conjunction with present technology, provides a kind of cylindrical flexible-packed battery.
For solving the problems of the technologies described above, the utility model has adopted following technical scheme: this cylindrical battery main body constitutes by being positioned at the outer field core of lithium ion cell aluminum-plastic packaged and that be positioned at aluminum-plastic packaged inside of battery main body, wherein battery be wound into cylinder be wrapped in aluminum-plastic packaged in.
Described battery comprises cathode sheets, barrier film and the anode strip that stacks gradually together, and wherein cathode sheets and anode strip are drawn cathode tab and anode lug respectively.
Described aluminum-plastic packaged by be positioned at outer field nylon layer, aluminum layer in the middle of being positioned at and the polymeric layer that is positioned at internal layer be composited.
After the utility model adopts technique scheme, adopt comparatively soft aluminum-plastic packaged of quality, not only reduce the cost increase problem that the rigid package product causes for solving explosion, adopt the flexible-packed battery of cylinder moulding can effectively improve the maximum volume of product (under equal surface area situation simultaneously, columniform volume is greater than the volume of cuboid), so just improved the relative capacity of battery.
Description of drawings:
The present invention is further illustrated below in conjunction with accompanying drawing:
Fig. 1 is a cross-sectional view of the present utility model;
Fig. 2 is an aluminum-plastic packaged structural representation of the present utility model;
Fig. 3 is the structural representation of the utility model battery;
Fig. 4 is the structural representation after the utility model battery core is reeled;
Fig. 5 is the schematic diagram after the packing moulding of the present utility model.
Embodiment:
See Fig. 1,2,3, the utility model is a kind of cylindrical flexible-packed battery, its cylindrical battery main body 1 is made of the core of lithium ion cell 3 that is positioned at battery main body 1 outer field aluminum-plastic packaged 2 and is positioned at aluminum-plastic packaged 2 inside, and wherein battery 3 is wound into cylinder and is wrapped in aluminum-plastic packaged 2.Described aluminum-plastic packaged 2 by be positioned at outer field nylon layer 21, aluminum layer 22 in the middle of being positioned at and the polymeric layer 23 that is positioned at internal layer be composited.For example, adopt three layers aluminum-plastic packaged, its skin is PET (polyethylene terephthalate) material, and the centre is an aluminium foil, and internal layer is PE (polyethylene) or PP (polypropylene).Battery 3 comprises cathode sheets 31, barrier film 32 and the anode strip 33 that stacks gradually together, and wherein cathode sheets 31 is drawn cathode tab 311 and anode lug 331 respectively with anode strip 33, as shown in Figure 3.Certainly, battery 3 also can adopt the mode of multilayer stack, for example, is superposeed successively by cathode sheets 31, barrier film 32, anode strip 33, barrier film 32, cathode sheets 31 5 layer materials successively.Be wound into the negative electrode earphone 311 of columniform battery 3 and anode lug 331 with the negative electrode and the anode of drawing respectively as this lithium-ion electric tank main body 1.
See Fig. 4,5, the utility model at first, is wound into cylinder with battery 3 when making, and its cathode tab 311 and anode lug 331 are stretched out by cylindrical lower end and upper end respectively.With aluminum-plastic packaged 2 whole cylinder is wrapped up then.When parcel, should at first cathode tab 311 be got on around folding, stretch out by the upper end of battery main body 1 with anode lug 331.
After the utility model adopts technique scheme, adopt quality comparatively soft aluminum-plastic packaged 2, not only reduce the cost increase problem that the rigid package product causes for solving explosion, adopt the flexible-packed battery of cylinder moulding can effectively improve the maximum volume of product simultaneously, so just improved the relative capacity of battery.On the other hand, with respect to common hard packing battery, the utility model also have protection against the tide (aluminum-plastic packaged 2 because the existence of cladding material, and its chemical property is stable, not can at air generation chemical reaction), not with characteristics such as electrolyte inside mixes.For common flexible-packed battery, because battery 3 is wound into cylinder, order the utlity model has higher intensity.
Claims (3)
1, cylindrical flexible-packed battery, comprise cylindrical battery main body (1), it is characterized in that: this cylindrical battery main body (1) constitutes by being positioned at battery main body (1) outer field aluminum-plastic packaged (2) and being positioned at aluminum-plastic packaged (2) inner core of lithium ion cell (3), and wherein battery (3) is wound into cylinder and is wrapped in aluminum-plastic packaged (2).
2, cylindrical flexible-packed battery according to claim 1, it is characterized in that: described battery (3) comprises cathode sheets (31), barrier film (32) and the anode strip (33) that stacks gradually together, and wherein cathode sheets (31) is drawn cathode tab (311) and anode lug (331) respectively with anode strip (33).
3, cylindrical flexible-packed battery according to claim 1 is characterized in that: described aluminum-plastic packaged (2) by be positioned at outer field nylon layer (21), aluminum layer (22) in the middle of being positioned at and the polymeric layer (23) that is positioned at internal layer be composited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200596868U CN2845181Y (en) | 2005-06-15 | 2005-06-15 | Cylindrical soft packed batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200596868U CN2845181Y (en) | 2005-06-15 | 2005-06-15 | Cylindrical soft packed batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2845181Y true CN2845181Y (en) | 2006-12-06 |
Family
ID=37487124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200596868U Expired - Fee Related CN2845181Y (en) | 2005-06-15 | 2005-06-15 | Cylindrical soft packed batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2845181Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915648A (en) * | 2014-03-31 | 2014-07-09 | 上虞安卡拖车配件有限公司 | High-power large-capacity long-service-life flexibly-packaged lithium ion battery |
| CN105633333A (en) * | 2015-12-30 | 2016-06-01 | 惠州亿纬锂能股份有限公司 | Cylindrical-structure lithium ion battery and preparation method thereof |
| CN110729446A (en) * | 2019-09-27 | 2020-01-24 | 惠州市众鑫达科技有限公司 | Polymer soft-package single-end tab cylindrical battery and manufacturing process thereof |
-
2005
- 2005-06-15 CN CNU2005200596868U patent/CN2845181Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915648A (en) * | 2014-03-31 | 2014-07-09 | 上虞安卡拖车配件有限公司 | High-power large-capacity long-service-life flexibly-packaged lithium ion battery |
| CN105633333A (en) * | 2015-12-30 | 2016-06-01 | 惠州亿纬锂能股份有限公司 | Cylindrical-structure lithium ion battery and preparation method thereof |
| CN105633333B (en) * | 2015-12-30 | 2018-03-27 | 惠州亿纬锂能股份有限公司 | A kind of lithium ion cylinder structure battery and preparation method thereof |
| CN110729446A (en) * | 2019-09-27 | 2020-01-24 | 惠州市众鑫达科技有限公司 | Polymer soft-package single-end tab cylindrical battery and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN NEW ENERGY TECHNOLOGY CO. Free format text: FORMER OWNER: DONGGUAN NEW ENERGY-SOURCE ELECTRONIC SCIENCE-TECHNOLOGY CO., LTD. Effective date: 20080815 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080815 Address after: North Science and Technology Industrial Zone, Songshan Lake Science and Technology Industrial Park, Guangdong, Dongguan Province, China: 523080 Patentee after: Dongguan Amperex Technology Co., Ltd. Address before: South District, Guangdong City, Dongguan Province: 523080 Patentee before: Dongguan New Energy Source Electronic Sci-Tech Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20140615 |
|
| EXPY | Termination of patent right or utility model |