CN205231157U - Cylindrical lithium -ion battery utmost point ear - Google Patents

Cylindrical lithium -ion battery utmost point ear Download PDF

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Publication number
CN205231157U
CN205231157U CN201520969314.2U CN201520969314U CN205231157U CN 205231157 U CN205231157 U CN 205231157U CN 201520969314 U CN201520969314 U CN 201520969314U CN 205231157 U CN205231157 U CN 205231157U
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CN
China
Prior art keywords
weld zone
thickness
ion battery
cylindrical lithium
utility
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Active
Application number
CN201520969314.2U
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Chinese (zh)
Inventor
关成善
宗继月
李涛
单传省
王勇
周会
张敬捧
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.)
Shandong Goldencell Electronics Technology Co Ltd
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Shandong Goldencell Electronics Technology Co Ltd
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Priority to CN201520969314.2U priority Critical patent/CN205231157U/en
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    • 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

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  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

The utility model discloses a cylindrical lithium -ion battery utmost point ear. The utility model discloses after can solving the utmost point ear widening, thicken, influence electric core capacity and roll up the core diameter increase, easily cause the problem of welding the rosin joint. The utility model discloses a technical scheme do: a cylindrical lithium -ion battery utmost point ear, characterized by: the battery tab both ends are the weld zone, and the middle part is non - weld zone, and the thickness of weld zone is less than the thickness of non - weld zone. The utility model discloses an advantage, adopt the utmost point ear that weld zone thickness in both ends is thin, can guarantee neither can influence when carrying out high power capacity, the production of high magnification lithium cell electric core the capacity, can not cause electric core to roll up the increase in footpath yet, can also guarantee to weld the effect simultaneously, be difficult for causing the rosin joint.

Description

A kind of cylindrical lithium ion battery lug
Technical field
The utility model relates to the making field of lithium battery, particularly relates to a kind of cylindrical lithium ion battery lug.
Background technology
Lug is a kind of important component part in lithium ion battery, plays connection function.For cylindrical lithium ion battery, on a current collector, the other end is welded on the positive and negative electrode respectively as battery core on block or box hat to the welding of lug one end.Along with the application of lithium battery, increasing field requires that lithium ion battery has high power capacity or can carry out large multiplying power discharging.In order to bearing great current electric discharge lug need thicken or widen usually.Lug widens the capacity that can affect battery core, can increase the diameter of core during winding simultaneously; Lug thickeies and easily causes welding rosin joint, increases battery core internal resistance.
Summary of the invention
After widening to solve lug, thickening, affect battery core capacity and core diameter increases, easily cause the problem of welding rosin joint, the utility model provides a kind of cylindrical lithium ion battery lug.
The technical solution adopted in the utility model is:
A kind of cylindrical lithium ion battery lug, it is characterized in that: battery pole ear two ends are weld zone, middle part is non-solder district, and the thickness of weld zone is less than the thickness in non-solder district.
According to described cylindrical lithium ion battery lug, described weld zone thickness is the 30%-60% of non-solder district thickness, and the length sum of weld zone is the 30%-50% of battery pole ear total length.
According to described cylindrical lithium ion battery lug, described weld zone thickness is 45% of non-solder district thickness, and the length sum of weld zone is 40% of battery pole ear total length.
According to described cylindrical lithium ion battery lug, between described weld zone and non-solder district, there is arc-shaped transition district.
According to described cylindrical lithium ion battery lug, the material of described lug body is nickel, aluminium, copper nickel plating or Foamed Nickel.
Advantage of the present utility model; Adopt the lug that weld zone, two ends thickness is thin, can ensure both can not affect the capacity of battery core when carrying out high power capacity, high-rate lithium battery production, also can not cause the increase of battery core coil diameter, can also welding effect be ensured simultaneously, not easily cause rosin joint.
Accompanying drawing explanation
Fig. 1 is the utility model extreme ear structure schematic diagram.
Fig. 2 is the utility model vertical section structure schematic diagram.
In accompanying drawing: 1 is weld zone; 2 is non-solder district; 3, arc-shaped transition district.
Embodiment
By reference to the accompanying drawings the utility model is described further.The utility model is cylindrical lithium ion battery lug, and lug two ends are weld zone 1.The thickness of weld zone, lug two ends 1 is the 30%-60% of lug non-solder district 2 thickness.The length sum of weld zone 1 is the 30%-50% of battery pole ear total length.The material of described lug is nickel, aluminium, copper nickel plating or Foamed Nickel.
As preferred embodiment, described weld zone 1 thickness is 45% of non-solder district 2 thickness, and the length sum of weld zone 1 is 40% of battery pole ear total length.In the present embodiment, the material of described lug is aluminium strip.
In order to reduce the stress concentration phenomenon in lug BENDING PROCESS, between described weld zone 1 and non-solder district 2, there is arc-shaped transition district 3.Arc-shaped transition district 3 is distributed between weld zone 1 and non-solder district 2, and in arc-shaped transition district 3, the thickness of lug seamlessly transits, and the longitudinal section outer contour shape in arc-shaped transition district 3 is arc.Lug thickness in weld zone 1, non-solder district 2 is definite value, and lug thickness is thickening gradually in interval, arc-shaped transition district 3.
The utility model provides a kind of cylindrical lithium ion battery lug.Due to the thinner thickness of the weld zone 1 at lug two ends, non-solder district 2 is thicker, can ensure, when being prepared high power capacity, high magnification battery core, tab welding part can not be caused thickening.This just can overcome the reason because of lug and cause the problems such as battery core capacity reduces, coil diameter increases, welding rosin joint, and ensures that battery can carry out large multiplying power discharging.
Embodiment recited above is only the description to preferred implementation of the present utility model; it is not the restriction to design of the present utility model and protection range; under the prerequisite not departing from the utility model design concept; the various modification that in this area, common engineers and technicians make the technical solution of the utility model and improvement, all should fall into protection range of the present utility model.

Claims (5)

1. a cylindrical lithium ion battery lug, is characterized in that: battery pole ear two ends are weld zone (1), and middle part is non-solder district (2), and the thickness of weld zone (1) is less than the thickness of non-solder district (2).
2. cylindrical lithium ion battery lug according to claim 1, is characterized in that: described weld zone (1) thickness is the 30%-60% of non-solder district (2) thickness, and the length sum of weld zone (1) is the 30%-50% of battery pole ear total length.
3. cylindrical lithium ion battery lug according to claim 2, is characterized in that: described weld zone (1) thickness is 45% of non-solder district (2) thickness, and the length sum of weld zone (1) is 40% of battery pole ear total length.
4. cylindrical lithium ion battery lug according to claim 1, is characterized in that: have arc-shaped transition district (3) between described weld zone (1) and non-solder district (2).
5. cylindrical lithium ion battery lug according to claim 1, is characterized in that: the material of described lug body is nickel, aluminium, copper nickel plating or Foamed Nickel.
CN201520969314.2U 2015-11-30 2015-11-30 Cylindrical lithium -ion battery utmost point ear Active CN205231157U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520969314.2U CN205231157U (en) 2015-11-30 2015-11-30 Cylindrical lithium -ion battery utmost point ear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520969314.2U CN205231157U (en) 2015-11-30 2015-11-30 Cylindrical lithium -ion battery utmost point ear

Publications (1)

Publication Number Publication Date
CN205231157U true CN205231157U (en) 2016-05-11

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CN201520969314.2U Active CN205231157U (en) 2015-11-30 2015-11-30 Cylindrical lithium -ion battery utmost point ear

Country Status (1)

Country Link
CN (1) CN205231157U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106784582A (en) * 2017-02-17 2017-05-31 湖南格瑞普新能源有限公司 Suitable for the lithium ion battery and pole piece of big multiplying power discharging
CN108198999A (en) * 2018-02-12 2018-06-22 宁波超霸能源有限公司 Lithium battery cathode plate and battery winding product and disposable lithium metal battery
CN114284619A (en) * 2020-09-18 2022-04-05 南京泉峰科技有限公司 Battery pack

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106784582A (en) * 2017-02-17 2017-05-31 湖南格瑞普新能源有限公司 Suitable for the lithium ion battery and pole piece of big multiplying power discharging
CN108198999A (en) * 2018-02-12 2018-06-22 宁波超霸能源有限公司 Lithium battery cathode plate and battery winding product and disposable lithium metal battery
CN114284619A (en) * 2020-09-18 2022-04-05 南京泉峰科技有限公司 Battery pack

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CP03 Change of name, title or address
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Address after: 277800 No. x6699, Guangming Road, high tech Zone, Zaozhuang City, Shandong Province (north of the junction of Guangming Road and Huaxin Road)

Patentee after: Shandong Jinggong Electronic Technology Co.,Ltd.

Address before: 277000 Haite Electronics Group, Fuyuan 5th Road, Thailand Industrial Park, High tech Zone, Zaozhuang City, Shandong Province

Patentee before: Shandong Seiko Electronic Technology Co.,Ltd.