CN102315412A - Lithium ion power battery pole group - Google Patents

Lithium ion power battery pole group Download PDF

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Publication number
CN102315412A
CN102315412A CN201110324914A CN201110324914A CN102315412A CN 102315412 A CN102315412 A CN 102315412A CN 201110324914 A CN201110324914 A CN 201110324914A CN 201110324914 A CN201110324914 A CN 201110324914A CN 102315412 A CN102315412 A CN 102315412A
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CN
China
Prior art keywords
paper tinsel
blank paper
plate
negative
region
Prior art date
Application number
CN201110324914A
Other languages
Chinese (zh)
Inventor
张火成
王永武
张娜
李杨
Original Assignee
力神迈尔斯动力电池系统有限公司
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Publication date
Application filed by 力神迈尔斯动力电池系统有限公司 filed Critical 力神迈尔斯动力电池系统有限公司
Priority to CN201110324914A priority Critical patent/CN102315412A/en
Publication of CN102315412A publication Critical patent/CN102315412A/en

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    • Y02E60/12

Abstract

The invention discloses a lithium ion power battery pole group comprising positive lugs, a positive plate, and negative lugs, a negative plate. The positive plate consists of aluminium foil and positive powder layers coated on two side surfaces of the aluminium foil, while the negative plate consists of copper foil and powder layers coated on the copper foil surface. Uncoated blank foil is arranged in the front area of the positive plate and on two sides of the intermediate area, and the positive lugs are welded in the blank foil in the front area and the intermediate area. Uncoated blank foil is left in the front area of the negative plate and on two sides of the tail end area, and the negative lugs are welded in the blank foil in the front area and the tail end area. The battery pole group of the invention optimizes the battery pole plate and pole lug design, changes traditional battery pole plate coating mode and pole lug welding position, and effectively reduces the battery internal resistance, so that high-rate charge-discharge battery performance of lithium ion power battery and other comprehensive electrical performances can be improved, thus suitable for the demands of large scale industrial production.

Description

A kind of lithium-ion-power cell utmost point group

Technical field

The invention belongs to the lithium-ion-power cell technical field, relate in particular to a kind of lithium-ion-power cell utmost point group.

Background technology

Along with the development of lithium ion battery industry, the maturation of electric vehicle engineering and perfect day by day, the application of power lithium-ion battery also more and more widely, the thing followed is the concerns of people to the lithium ion battery power-performance.

The general single lug syndeton of a plurality of utmost point groups that adopts of existing electrokinetic cell utmost point group pole-piece pole-ear.When high current charge-discharge, thereby can cause the increase of battery caloric value that battery is caused very big damage, and influence the high-power efficient that discharges and recharges because the collector cross section is little.

Summary of the invention

The objective of the invention is to overcome the deficiency of above-mentioned technology and a kind of lithium-ion-power cell utmost point group is provided.

For solving the problems of the technologies described above, the technical scheme that the present invention adopts is following:

A kind of lithium-ion-power cell utmost point group is made up of anode ear, positive plate and negative electrode lug, negative plate; Said positive plate is made up of aluminium foil and the anodal bisque that is coated on aluminium foil surface; Said negative plate is made up of Copper Foil and the negative pole bisque that is coated on copper foil surface; The blank paper tinsel of uncoated is left in said positive plate front end region and both sides, mesozone, and said anode ear is welded in the blank paper tinsel place of this front end region and mesozone; The blank paper tinsel of uncoated is left in said negative plate front end region and both sides, tail end district, and said negative electrode lug is welded in the blank paper tinsel place in this front end region and tail end district.

Preferably, the blank paper tinsel length of both sides, said positive plate mesozone is consistent, and the blank paper tinsel length of its front end region one side is three times of opposite side.

Further, said positive pole ear is two, is welded in the blank paper tinsel place of said positive plate front end region and mesozone respectively.

Preferably, the blank paper tinsel length of both sides, said negative plate tail end district is consistent, and the blank paper tinsel length of its front end region one side is seven times of opposite side.

Further, said negative lug is two, is welded in the blank paper tinsel place in said negative plate front end region and tail end district respectively.

The present invention is through optimizing the design of battery pole piece lug; Change traditional coating battery pole piece mode and lug welding position; Reduce the internal resistance of cell effectively, thereby can improve comprehensive electrochemical properties such as lithium-ion-power cell high rate charge-discharge pond performance, be fit to the demand that large-scale industrial is produced.

Description of drawings

Fig. 1 is the front view of the lithium-ion-power cell utmost point group positive plate lug that provides of the embodiment of the invention;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the front view of the lithium-ion-power cell utmost point group negative plate lug that provides of the embodiment of the invention;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is the structural representation after the lithium-ion-power cell utmost point group that provides of the embodiment of the invention is reeled;

Among the figure: the anodal bisque of 1-, 2-anode ear, the blank paper tinsel in the anodal mesozone of 3-, the blank paper tinsel of anodal front end region one side of 4-, the blank paper tinsel of the anodal front end region opposite side of 5-, 6-negative pole bisque, 7-negative electrode lug, the blank paper tinsel in 8-negative pole tail end district, the blank paper tinsel of 9-negative pole front end region opposite side, the blank paper tinsel of 10-negative pole front end region one side, 11-utmost point group.

Embodiment

In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing.

Lithium-ion-power cell utmost point group of the present invention is made up of anode ear, positive plate and negative electrode lug, negative plate; Said positive plate is made up of aluminium foil and the anodal bisque that is coated on the aluminium foil both side surface, and said negative plate is made up of Copper Foil and the negative pole bisque that is coated on copper foil surface; The blank paper tinsel of uncoated is left in said positive plate front end region and both sides, mesozone, and said anode ear is welded in the blank paper tinsel place of this front end region and mesozone; The blank paper tinsel of uncoated is left in said negative plate front end region and both sides, tail end district, and said negative electrode lug is welded in the blank paper tinsel place in this front end region and tail end district.

Referring to Fig. 1, shown in 2; Said positive plate is made up of aluminium foil and the anodal bisque 1 that is coated on the aluminium foil both side surface; It adopts special-shaped application pattern, and the blank paper tinsel 4,5 of uncoated is left in promptly said positive plate front end region both sides, leaves the blank paper tinsel 3 of uncoated in these both sides, positive plate mesozone; Anode ear 2 is welded in the blank paper tinsel place of front end region and mesozone, the positive pole of said anode ear 2 and said positive plate formation battery utmost point group.

Preferably, blank paper tinsel 3 length of both sides, said positive plate mesozone are consistent, and the length of the blank paper tinsel 4 of its front end region one side is three times of length of the blank paper tinsel 5 of front end region opposite side.

Preferably, the blank paper tinsel of both sides, said positive plate mesozone is positioned at 1/2 length place of overlay.

Further, said anode ear is two, is welded in the blank paper tinsel place of said positive plate front end region and mesozone respectively.

Referring to Fig. 3, shown in 4; Said negative plate is made up of Copper Foil and the negative pole bisque 6 that is coated on the Copper Foil both side surface; The blank paper tinsel 9,10 of uncoated is left in cathode pole piece front end region both sides; Negative plate tail end district leaves both sides the blank paper tinsel 8 of uncoated, and negative electrode lug 7 is welded in the blank paper tinsel of front end region and tail end district place, the negative pole of said negative electrode lug 7 and negative plate formation battery utmost point group.

Preferably, blank paper tinsel 8 length of both sides, said negative plate tail end district are consistent, and the length of the blank paper tinsel 10 of its front end region one side is seven times of the blank paper tinsel 9 of opposite side.

Further, said negative electrode lug 7 is two, is welded in the blank paper tinsel place in said negative plate front end region and tail end district respectively.

Referring to shown in Figure 5, after reeling through sutomatic winding machine, above-mentioned positive plate, negative plate form the utmost point group 11 of battery, and the anode ear 2 of utmost point group 11 is side by side two, and negative electrode lug 7 is side by side two.

The present invention is through optimizing the design of battery pole piece lug; Change traditional coating battery pole piece mode and lug welding position; Reduce the internal resistance of cell effectively, thereby can improve comprehensive electrochemical properties such as lithium-ion-power cell high rate charge-discharge pond performance, be fit to the demand that large-scale industrial is produced.

The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims (5)

1. a lithium-ion-power cell utmost point group is made up of anode ear, positive plate and negative electrode lug, negative plate; Said positive plate is made up of aluminium foil and the anodal bisque that is coated on aluminium foil surface; Said negative plate is made up of Copper Foil and the negative pole bisque that is coated on copper foil surface; It is characterized in that the blank paper tinsel of uncoated is left in said positive plate front end region and both sides, mesozone, said anode ear is welded in the blank paper tinsel place of this front end region and mesozone; The blank paper tinsel of uncoated is left in said negative plate front end region and both sides, tail end district, and said negative electrode lug is welded in the blank paper tinsel place in this front end region and tail end district.
2. lithium-ion-power cell utmost point group according to claim 1 is characterized in that, the blank paper tinsel length of both sides, said positive plate mesozone is consistent, and the blank paper tinsel length of its front end region one side is three times of opposite side.
3. lithium-ion-power cell utmost point group according to claim 1 and 2 is characterized in that said positive pole ear is two, is welded in the blank paper tinsel place of said positive plate front end region and mesozone respectively.
4. lithium-ion-power cell utmost point group according to claim 1 is characterized in that, the blank paper tinsel length of both sides, said negative plate tail end district is consistent, and the blank paper tinsel length of its front end region one side is seven times of opposite side.
5. according to claim 1 or 4 described lithium-ion-power cell utmost point groups, it is characterized in that said negative lug is two, be welded in the blank paper tinsel place in said negative plate front end region and tail end district respectively.
CN201110324914A 2011-10-24 2011-10-24 Lithium ion power battery pole group CN102315412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110324914A CN102315412A (en) 2011-10-24 2011-10-24 Lithium ion power battery pole group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110324914A CN102315412A (en) 2011-10-24 2011-10-24 Lithium ion power battery pole group

Publications (1)

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CN102315412A true CN102315412A (en) 2012-01-11

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103138000A (en) * 2013-01-31 2013-06-05 浙江努奥罗新能源科技有限公司 Lithium cell
CN103456920A (en) * 2013-08-29 2013-12-18 山东驰翔新能源科技有限公司 Cylindrical lithium battery positive-negative plate structure
CN103928715A (en) * 2014-04-25 2014-07-16 广西师范大学 Battery cell of flexible laminated lithium ion battery, manufacturing method of battery cell as well as battery
CN106169618A (en) * 2016-09-29 2016-11-30 东莞市振华新能源科技有限公司 A kind of positive/negative plate promoting electrokinetic cell safety and winding clad structure thereof
CN108183264A (en) * 2017-12-22 2018-06-19 力神电池(苏州)有限公司 A kind of preparation method of cylindrical lithium ion battery pole group and its battery pole group

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201369367Y (en) * 2009-02-26 2009-12-23 宁波伊司达锂电池有限公司 Power lithium battery bare cell with double-tab structure
CN201616478U (en) * 2009-11-02 2010-10-27 河南比得力高新能源科技有限公司 Double-lug high-rate lithium ion battery
CN201820851U (en) * 2010-10-27 2011-05-04 湖南天恒新能源有限公司 Three pole ear electrical core of polymer low-temperature lithium-ion battery
US20110129718A1 (en) * 2009-12-01 2011-06-02 Samsung Sdi Co., Ltd. Electrode assembly and secondary battery including the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201369367Y (en) * 2009-02-26 2009-12-23 宁波伊司达锂电池有限公司 Power lithium battery bare cell with double-tab structure
CN201616478U (en) * 2009-11-02 2010-10-27 河南比得力高新能源科技有限公司 Double-lug high-rate lithium ion battery
US20110129718A1 (en) * 2009-12-01 2011-06-02 Samsung Sdi Co., Ltd. Electrode assembly and secondary battery including the same
CN201820851U (en) * 2010-10-27 2011-05-04 湖南天恒新能源有限公司 Three pole ear electrical core of polymer low-temperature lithium-ion battery

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103138000A (en) * 2013-01-31 2013-06-05 浙江努奥罗新能源科技有限公司 Lithium cell
CN103138000B (en) * 2013-01-31 2015-10-07 浙江努奥罗新能源科技有限公司 A kind of lithium battery
CN103456920A (en) * 2013-08-29 2013-12-18 山东驰翔新能源科技有限公司 Cylindrical lithium battery positive-negative plate structure
CN103456920B (en) * 2013-08-29 2016-05-04 山东驰翔新能源科技有限公司 A kind of cylinder type lithium battery positive/negative plate structure
CN103928715A (en) * 2014-04-25 2014-07-16 广西师范大学 Battery cell of flexible laminated lithium ion battery, manufacturing method of battery cell as well as battery
CN106169618A (en) * 2016-09-29 2016-11-30 东莞市振华新能源科技有限公司 A kind of positive/negative plate promoting electrokinetic cell safety and winding clad structure thereof
CN108183264A (en) * 2017-12-22 2018-06-19 力神电池(苏州)有限公司 A kind of preparation method of cylindrical lithium ion battery pole group and its battery pole group

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CB03 Change of inventor or designer information

Inventor after: Zhang Huocheng

Inventor after: Zhang Na

Inventor after: Li Yang

Inventor after: Wang Yongwu

Inventor before: Zhang Huocheng

Inventor before: Wang Yongwu

Inventor before: Zhang Na

Inventor before: Li Yang

C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: ZHANG HUOCHENG WANG YONGWU ZHANG NA LI YANG TO: ZHANG HUOCHENG ZHANG NA LIYANG WANG YONGWU

WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120111

C02 Deemed withdrawal of patent application after publication (patent law 2001)