CN201956431U - Special-shaped flexible package lithium ion battery - Google Patents

Special-shaped flexible package lithium ion battery Download PDF

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Publication number
CN201956431U
CN201956431U CN2011200629814U CN201120062981U CN201956431U CN 201956431 U CN201956431 U CN 201956431U CN 2011200629814 U CN2011200629814 U CN 2011200629814U CN 201120062981 U CN201120062981 U CN 201120062981U CN 201956431 U CN201956431 U CN 201956431U
Authority
CN
China
Prior art keywords
lithium ion
ion battery
pole piece
special
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011200629814U
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Chinese (zh)
Inventor
钟千里
焦坤
孙迎新
刘志伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eve Energy Co Ltd
Original Assignee
Huizhou Desay Polypower Battery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huizhou Desay Polypower Battery Co Ltd filed Critical Huizhou Desay Polypower Battery Co Ltd
Priority to CN2011200629814U priority Critical patent/CN201956431U/en
Application granted granted Critical
Publication of CN201956431U publication Critical patent/CN201956431U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model belongs to the field of a flexible package lithium ion battery, which discloses a special-shaped flexible package lithium ion battery. The flexible package lithium ion battery comprises an electrode plate provided with a lug in a welding way, a battery core formed by winding the electrode plate and a flexible package shell used for accommodating the battery core, wherein the widths of the two ends of the electrode plate are different; the lug is welded at the wider end of the electrode plate; the shape of the electrode plate is trapezium or triangle or right triangle. The integral battery is spindle shape or cone shape, thereby being quite appropriate for the requirements on diversity and humanization of a digital product.

Description

A kind of special-shaped flexible packing lithium ion battery
Technical field
The utility model relates to a kind of flexible packing lithium ion battery, relates in particular to a kind of special-shaped flexible packing lithium ion battery.
Background technology
In the last few years, development along with battery technology, lithium ion battery has characteristics such as discharging current is big, good stability, fail safe is good, capacity is big and is widely used in the product scopes such as digital product, electric tool and power toy because of it, bring great convenience for our life.Along with the variation and the hommization of digital product, existing cylindrical more and more inapplicable with rectangular cell.
Summary of the invention
At above-mentioned technological deficiency, technical problem to be solved in the utility model provides a kind of special-shaped battery.
For solving the problems of the technologies described above, the utility model is by the following technical solutions: a kind of special-shaped flexible packing lithium ion battery, comprise the pole piece that is welded with lug, and by pole piece coiling battery that forms and the flexible package shell that holds battery, described pole piece two ends width differs, and described lug is welded on the wide end of pole piece.
Further: in above-mentioned special-shaped flexible packing lithium ion battery, described pole piece shape is a kind of in trapezoidal, triangle, the right-angled triangle.Described pole piece two ends is provided with wide section.Described pole piece two ends are equipped with does not have the empty paper tinsel of coating district, and described lug is welded on the empty paper tinsel district of the wide end of pole piece.Described flexible packing lithium ion battery core monnolithic case is spindle or taper.Described flexible package shell is that groove that two on the shell sheet is equal to size closes up the back and forms the cavity hold battery, and the termination of described groove is partly dark and the footpath is wide all inequality with footpath partly, centre.The cavity integral body that preferred described two grooves close up back formation is spindle or taper.
Compared with prior art, in above-mentioned special-shaped flexible packing lithium ion battery, comprise the pole piece that is welded with lug, and by pole piece coiling battery that forms and the flexible package shell that holds battery, described pole piece two ends width differs, and described lug is welded on the wide end of pole piece.Use the cylindrical roll pin during coiling, between the volume pin, insert two-layer barrier film according to the normal winding operation earlier, on lower floor's barrier film, place negative plate, on the barrier film of upper strata, place positive plate, begin and finish coiling.By this kind film-making, winding method, can realize electric core is made structures such as spindle, taper, meet the need of market.In addition, this kind structure has also been accomplished conserve space as far as possible, makes its energy density maximization on the basis of special construction.Make electric core on this kind architecture basics, bring into play maximum discharging efficiency simultaneously, make its volume and capacity ratio maximization.Its cell integrated shape is spindle or taper is well suited for the variation of digital product and the requirement of hommization.
Description of drawings
Fig. 1 is the structure chart of the pole piece of the utility model battery; Fig. 2 is the battery outline drawing of the utility model battery; Fig. 3 is the shell sheet unfolding assumption diagram of the utility model battery;
1 lug, 2 pole pieces, 3 empty paper tinsel districts, 4 battery, 5 shell sheets, 6 grooves.
Embodiment
For the ease of those skilled in the art's understanding, the utility model structural principle is further described in detail below in conjunction with embodiment and accompanying drawing.
As Fig. 1-3, a kind of special-shaped flexible packing lithium ion battery comprises the pole piece 2 that is welded with lug 1, and by pole piece coiling battery that forms and the flexible package shell that holds battery, described pole piece two ends width differs, and described lug 1 is welded on the wide end of pole piece.Described pole piece shape is a kind of in trapezoidal, triangle, the right-angled triangle.Described pole piece two ends is provided with wide section.Described pole piece two ends are equipped with does not have the empty paper tinsel of coating district 3, and described lug 1 is welded on the empty paper tinsel district of the wide end of pole piece.Described flexible package shell is that groove 6 that two on the shell sheet 5 is equal to size closes up the back and forms the cavity hold battery, and the termination of described groove 6 is partly dark and the footpath is wide all inequality with footpath partly, centre, as shown in Figure 3.The cavity integral body that described two grooves 6 close up back formation is spindle or taper.
Use the cylindrical roll pin during coiling, between the volume pin, insert two-layer barrier film according to the normal winding operation earlier, on lower floor's barrier film, place negative plate, on the barrier film of upper strata, place positive plate, begin and finish coiling.By this kind film-making, winding method, can realize electric core is made structures such as spindle, taper, be fit to the variation of digital product and the requirement of hommization.In the present embodiment, these abnormity flexible packing lithium ion battery core 4 profiles are spindle, as shown in Figure 2.
Above-mentioned only is preferred implementation of the present utility model, and in addition, the utility model can also have other implementations.That is to say that under the prerequisite that does not break away from the utility model design, any conspicuous replacement all should fall within the protection range of the present utility model.

Claims (7)

1. special-shaped flexible packing lithium ion battery, comprise the pole piece (2) that is welded with lug (1), and battery (4) that forms by pole piece coiling and the flexible package shell that holds battery, it is characterized in that: described pole piece two ends width differs, and described lug (1) is welded on the wide end of pole piece.
2. special-shaped flexible packing lithium ion battery according to claim 1 is characterized in that: described pole piece shape is a kind of in trapezoidal, triangle, the right-angled triangle.
3. special-shaped flexible packing lithium ion battery according to claim 2 is characterized in that: described pole piece two ends is provided with wide section.
4. special-shaped flexible packing lithium ion battery according to claim 3 is characterized in that: described pole piece two ends are equipped with does not have the empty paper tinsel of coating district (3), and described lug (1) is welded on the empty paper tinsel district of the wide end of pole piece.
5. according to any described special-shaped flexible packing lithium ion battery among the claim 1-4, it is characterized in that: described flexible packing lithium ion battery core (4) monnolithic case is spindle or taper.
6. special-shaped flexible packing lithium ion battery according to claim 5, it is characterized in that: described flexible package shell is that groove (6) that two on the shell sheet (5) is equal to size closes up the back and forms the cavity hold battery, and the termination of described groove (6) is partly dark and the footpath is wide all inequality with footpath partly, centre.
7. special-shaped flexible packing lithium ion battery according to claim 6 is characterized in that: the cavity integral body that described two grooves (6) close up back formation is spindle or taper.
CN2011200629814U 2011-03-11 2011-03-11 Special-shaped flexible package lithium ion battery Expired - Lifetime CN201956431U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200629814U CN201956431U (en) 2011-03-11 2011-03-11 Special-shaped flexible package lithium ion battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200629814U CN201956431U (en) 2011-03-11 2011-03-11 Special-shaped flexible package lithium ion battery

Publications (1)

Publication Number Publication Date
CN201956431U true CN201956431U (en) 2011-08-31

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CN2011200629814U Expired - Lifetime CN201956431U (en) 2011-03-11 2011-03-11 Special-shaped flexible package lithium ion battery

Country Status (1)

Country Link
CN (1) CN201956431U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983363A (en) * 2012-08-23 2013-03-20 珠海光宇电池有限公司 Rolling core, polymer lithium ion battery and preparation method
CN104798242A (en) * 2013-02-13 2015-07-22 株式会社Lg化学 Electrode assembly having sloped structure, and battery cell comprising same
CN106029111A (en) * 2014-02-19 2016-10-12 利乐拉瓦尔集团及财务有限公司 Power supply
CN106356499A (en) * 2016-10-25 2017-01-25 宁德新能源科技有限公司 Pole piece and wound battery core
CN112290130A (en) * 2019-06-16 2021-01-29 深圳格林德能源集团有限公司 Spherical polymer lithium battery and manufacturing method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983363A (en) * 2012-08-23 2013-03-20 珠海光宇电池有限公司 Rolling core, polymer lithium ion battery and preparation method
CN102983363B (en) * 2012-08-23 2015-03-25 珠海光宇电池有限公司 Rolling core, polymer lithium ion battery and preparation method
CN104798242A (en) * 2013-02-13 2015-07-22 株式会社Lg化学 Electrode assembly having sloped structure, and battery cell comprising same
CN104798242B (en) * 2013-02-13 2018-04-20 株式会社Lg 化学 The electrode assemblie of incline structure and use its battery unit
US9966627B2 (en) 2013-02-13 2018-05-08 Lg Chem, Ltd. Electrode assembly of incline structure and battery cell employed with the same
CN106029111A (en) * 2014-02-19 2016-10-12 利乐拉瓦尔集团及财务有限公司 Power supply
CN106029111B (en) * 2014-02-19 2019-10-11 利乐拉瓦尔集团及财务有限公司 Power supply
CN106356499A (en) * 2016-10-25 2017-01-25 宁德新能源科技有限公司 Pole piece and wound battery core
CN112290130A (en) * 2019-06-16 2021-01-29 深圳格林德能源集团有限公司 Spherical polymer lithium battery and manufacturing method thereof

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: HUIZHOU EVE ENERGY CO., LTD.

Free format text: FORMER OWNER: HUIZHOU DESAY POLYPOWER BATTERY CO., LTD.

Effective date: 20130624

TR01 Transfer of patent right

Effective date of registration: 20130624

Address after: Seven road 516006 in Guangdong province Huizhou City Zhongkai high tech Zone Huifeng No. 36

Patentee after: Huizhou EVE Energy Co., Ltd.

Address before: 516006 Guangdong province Huizhou City Zhongkai high tech Zone No. 6 District 7 plots in Huizhou DESAY Energy Battery Co.

Patentee before: Huizhou Desay Polypower Battery Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20110831

CX01 Expiry of patent term