CN201789035U - Lithium battery with high-ratio-capacity battery core - Google Patents
Lithium battery with high-ratio-capacity battery core Download PDFInfo
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- CN201789035U CN201789035U CN2010205036030U CN201020503603U CN201789035U CN 201789035 U CN201789035 U CN 201789035U CN 2010205036030 U CN2010205036030 U CN 2010205036030U CN 201020503603 U CN201020503603 U CN 201020503603U CN 201789035 U CN201789035 U CN 201789035U
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- battery
- battery core
- capacity
- lithium battery
- core
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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 lithium battery with a high-ratio-capacity battery core, which comprises a lithium battery with a battery core. The lithium battery with a high-ratio-capacity battery core is characterized in that an tab is adhered to a portion of a current carrying piece of the battery core, and one or two layers of active substance sections with thicknesses no larger than that of the tab are added to the other portion of the current carrying piece of the battery core. The lithium battery with a high-ratio-capacity battery core has the advantages that limited space is sufficiently used to maximize battery capacity, thickness differences of all portions on the surface of the battery core can be sufficiently balanced, battery deformation caused by battery core stress is effectively reduced, and the lithium battery adopting the scheme for designing, developing, producing and manufacturing wound batteries is simple in structure and simple and easy in operation.
Description
Technical field
The utility model belongs to lithium battery, relates in particular to a kind of lithium battery that can effectively increase the height ratio capacity electricity core of battery capacity and balance electricity core thickness.
Background technology
Along with various electronic devices constantly develop to multifunction, intelligent direction, its energy requirement is also more and more higher at present.This just makes provides the battery of energy need constantly improve capacity for it.And the battery capacity of traditional electrical cored structure can not satisfy a requirement to the battery high-volume and capacity ratio.In traditional battery battery core structure, on a plane of positive and negative electrode carrying object, only covered unique active material section.Vacate one section carrying object then, welding thereon or the bonding lug of going up are processed into electric core by lamination or winding method.It is electric core thickest point that this kind structure forms positive and negative lug place, and the lower shape that is uneven of all the other blank carrying object segment thicknesses not only causes the very big waste of battery volume aspect, does not also bring into play any capacity of battery.And because electric core each several part variable thickness is easy to generate stress in the battery use, cause the battery distortion, influence the use of electrical equipment.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and the lithium battery of a kind of height ratio capacity electricity core is provided, by increasing active material hop count amount on the electric core carrying object, make full use of the confined space and improve battery capacity, and the lip-deep thickness difference of balancing battery reduces battery deformation effectively.
The utility model for achieving the above object, by the following technical solutions: a kind of lithium battery of height ratio capacity electricity core, comprise the lithium battery of electric core, it is characterized in that: described electric core carrying object is stained with lug and sentences the outer active material section that one deck or two layers of thickness are not more than lug that partly increases.
Beneficial effect: give full play to and utilize limited space, make battery capacity accomplish maximum.Fully the thickness difference of each several part on the balance electricity wicking surface effectively reduces the battery deformation that is caused by electric core stress.The the designing and developing and manufacturing of battery that be used to reel of this scheme, it is simple in structure, and is easy to operation.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is traditional takeup type electricity core segment schematic diagram.
Among the figure: 1 positive active material, 2 anode ears, 3 anodal carrying objects, 4 negative electrode active materials, 5 negative electrode lugs, 6 negative pole carrying objects, 7,8, the positive active material section that increases, 9,10, the negative electrode active material that increases.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in the figure, the lithium battery of a kind of height ratio capacity electricity core comprises that the lithium battery of electric core, described electric core carrying object are stained with lug and sentence outer part and increase the active material section that one deck or two layers of thickness are not more than lug.
See Fig. 2 for details, in this traditional takeup type core strueture, between anode ear 2 and the negative electrode lug 5 part thickness less than two lug place thickness, negative electrode lug 5 with left half negative pole carrying object 6 place's thickness less than two lug place thickness.
As shown in Figure 1, on traditional core strueture basis, both positive and negative polarity increases active material section 7,8 and 9,10 respectively.Guarantee active material section 7,9 both thickness add and reach active material section 8, the 10 thickness thickness that adds and be not more than anode ear 2, maximum of negative electrode lug 5 thickness.For guaranteeing the coating of negative electrode active material to positive active material, positive active material section 7,8 length should be less than or equal to negative electrode active material section 9,10 length respectively.
Compare with traditional takeup type core strueture in this structure, increased by 7 ~ 10 active material section, electric core thickness does not increase, and electric core capacity is largely increased.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. the lithium battery of height ratio capacity electricity core comprises it is characterized in that the lithium battery of electric core: described electric core carrying object is stained with lug and sentences outer part and increase the active material section that one deck or two layers of thickness are not more than lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205036030U CN201789035U (en) | 2010-08-25 | 2010-08-25 | Lithium battery with high-ratio-capacity battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205036030U CN201789035U (en) | 2010-08-25 | 2010-08-25 | Lithium battery with high-ratio-capacity battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789035U true CN201789035U (en) | 2011-04-06 |
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ID=43820990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205036030U Expired - Lifetime CN201789035U (en) | 2010-08-25 | 2010-08-25 | Lithium battery with high-ratio-capacity battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610847A (en) * | 2011-12-20 | 2012-07-25 | 友达光电股份有限公司 | Battery cell and manufacturing method thereof |
-
2010
- 2010-08-25 CN CN2010205036030U patent/CN201789035U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610847A (en) * | 2011-12-20 | 2012-07-25 | 友达光电股份有限公司 | Battery cell and manufacturing method thereof |
| CN102610847B (en) * | 2011-12-20 | 2014-07-09 | 友达光电股份有限公司 | Battery cell and manufacturing method thereof |
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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 |
Granted publication date: 20110406 |
|
| CX01 | Expiry of patent term |