CN207731993U - Unidirectional lug high power capacity cylindrical lithium ion power battery - Google Patents

Unidirectional lug high power capacity cylindrical lithium ion power battery Download PDF

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Publication number
CN207731993U
CN207731993U CN201820154249.1U CN201820154249U CN207731993U CN 207731993 U CN207731993 U CN 207731993U CN 201820154249 U CN201820154249 U CN 201820154249U CN 207731993 U CN207731993 U CN 207731993U
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CN
China
Prior art keywords
battery
lug
positive
roll core
cathode
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 - Fee Related
Application number
CN201820154249.1U
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Chinese (zh)
Inventor
许朝勇
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.)
Shenzhen Sunhe Energy Co ltd
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Sunhe Energy 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 Sunhe Energy Co Ltd filed Critical Sunhe Energy Co Ltd
Priority to CN201820154249.1U priority Critical patent/CN207731993U/en
Application granted granted Critical
Publication of CN207731993U publication Critical patent/CN207731993U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Connection Of Batteries Or Terminals (AREA)

Abstract

The utility model discloses a kind of unidirectional lug high power capacity cylindrical lithium ion power battery, including positive plate, negative plate, anode ear, negative electrode lug and isolation film, isolation film is clamped between positive plate and negative plate, winding initiating terminal, the winding initiating terminal of isolation film and the winding initiating terminal of negative plate of positive plate are aligned and wind to form battery roll core, anode ear is drawn from the winding clearing end of positive plate, negative electrode lug is drawn from the winding clearing end of negative plate, anode ear is identical as the lead direction of negative electrode lug, and the two is not in contact.The unidirectional lug high power capacity cylindrical lithium ion power battery of the utility model can effectively reduce the area of sky foil, to promote the capacity of battery, also improve the utilization rate of structure by drawing anode ear and negative electrode lug from same direction.It during subsequently encapsulate, is conveniently operated, simplifies battery structure.

Description

Unidirectional lug high power capacity cylindrical lithium ion power battery
Technical field
The utility model is related to the technical field of power battery more particularly to a kind of unidirectional lug high power capacity cylindrical lithium ions Power battery.
Background technology
Usual lithium ion battery is by battery case, battery pack, rebound, protection board, and charge and discharge combination of outlets forms.Lithium from Sub- battery be made generally in it is cylindrical and rectangular, by positive/negative plate, diaphragm, electrolyte, the compositions such as shell, the active object of pole piece The compositions such as matter, conductive agent, additive and collector, collector are generally dimensional metal mesh or two-dimensional metallic net, punch metal band, Positive/negative plate by with lug spot welding be connected to shell it is positive and negative it is extreme on.Common anode ear is to distinguish never with negative electrode lug It is drawn with end, the energy density of battery can be influenced by lug exit sky foil in this way after coiling and molding, so as to cause Energy density is not high.
Utility model content
Shortcoming present in view of the above technology, the utility model provide a kind of list simple in structure, easy to operate To lug high power capacity cylindrical lithium ion power battery.
In order to achieve the above object, a kind of unidirectional lug high power capacity cylindrical lithium ion power battery of the utility model, including Positive plate, negative plate, anode ear, negative electrode lug and isolation film, the isolation film is clamped between positive plate and negative plate, described Winding initiating terminal, the winding initiating terminal of isolation film and the winding initiating terminal of negative plate of positive plate are aligned and wind to form battery Core, the anode ear are drawn from the winding clearing end of positive plate, and the negative electrode lug is drawn from the winding clearing end of negative plate, institute It is identical as the lead direction of negative electrode lug to state anode ear, and the two is not in contact.
Wherein, the anode ear includes positive folding part and positive elongated portion, and described anode folding part one end is from anode Piece is drawn, and the other end of positive folding part stretches along the rounded bottom surface of battery roll core and is parallel to the circular base of battery roll core The one end in face, the anode elongated portion is docked with positive folding part, and the other end of positive elongated portion is stretched to outside battery roll core And perpendicular to the rounded bottom surface of battery roll core.
Wherein, the negative electrode lug includes cathode folding part and cathode elongated portion, and cathode folding part one end is from cathode Piece is drawn, and the other end of cathode folding part stretches along the rounded bottom surface of battery roll core and is parallel to the circular base of battery roll core The one end in face, the cathode elongated portion is docked with cathode folding part, and the other end of cathode elongated portion is stretched to outside battery roll core And perpendicular to the rounded bottom surface of battery roll core.
Wherein, the positive elongated portion is in same plane with cathode elongated portion, and the plane is perpendicular to battery roll core Rounded bottom surface, and the central shaft of battery roll core passes through the plane.
Wherein, which further includes positive pole ear glue and negative lug glue, and the positive pole ear glue laminating is in positive plate The position being in contact with anode ear, the negative lug glue laminating is in the position that negative plate is in contact with negative electrode lug.
The utility model has the beneficial effects that:
Compared with prior art, the unidirectional lug high power capacity cylindrical lithium ion power battery of the utility model, by will just Lug is drawn with negative electrode lug from same direction, can be effectively reduced the area of sky foil, to promote the capacity of battery, also be improved The utilization rate of structure.It during subsequently encapsulate, is conveniently operated, simplifies battery structure.
Description of the drawings
Fig. 1 is the broken section structure chart of the unidirectional lug high power capacity cylindrical lithium ion power battery of the utility model;
Fig. 2 is the front view of the unidirectional lug high power capacity cylindrical lithium ion power battery of the utility model;
Fig. 3 is the vertical view of the unidirectional lug high power capacity cylindrical lithium ion power battery of the utility model.
Main element symbol description is as follows:
1, anode ear 2, negative electrode lug
11, positive folding part 12, positive elongated portion
21, cathode folding part 22, cathode elongated portion.
Specific implementation mode
In order to more clearly state the utility model, the utility model is further described below in conjunction with the accompanying drawings.
Refering to fig. 1-3, a kind of unidirectional lug high power capacity cylindrical lithium ion power battery of the utility model, including positive plate (It is not shown), negative plate(It is not shown), anode ear 1, negative electrode lug 2 and isolation film(It is not shown), isolation film is clamped in positive plate Between negative plate, the winding initiating terminal alignment of the winding initiating terminal of positive plate, the winding initiating terminal of isolation film and negative plate And wind and form battery roll core, anode ear 1 is drawn from the winding clearing end of positive plate, and negative electrode lug 2 is terminated from the winding of negative plate End is drawn, and anode ear 1 is identical as the lead direction of negative electrode lug 2, and the two is not in contact.
Compared to the prior art, the unidirectional lug high power capacity cylindrical lithium ion power battery of the utility model, by will just Lug 1 is drawn with negative electrode lug 2 from same direction, can be effectively reduced the area of sky foil, to promote the capacity of battery, also be promoted The utilization rate of structure.It during subsequently encapsulate, is conveniently operated, simplifies battery structure.
In the present embodiment, anode ear 1 includes positive folding part 11 and positive elongated portion 12,11 one end of positive folding part It is drawn from positive plate, and the other end of positive folding part 11 stretches along the rounded bottom surface of battery roll core and is parallel to battery roll core Rounded bottom surface, one end of positive elongated portion 12 docks with positive folding part 11, and the other end of anode elongated portion 12 is to battery winding It is stretched outside core and perpendicular to the rounded bottom surface of battery roll core.
In the present embodiment, negative electrode lug 2 includes cathode folding part 21 and cathode elongated portion 22,21 one end of cathode folding part It is drawn from negative plate, and the other end of cathode folding part 21 stretches along the rounded bottom surface of battery roll core and is parallel to battery roll core One end of rounded bottom surface, cathode elongated portion 22 is docked with cathode folding part 21, and the other end of cathode elongated portion 22 is to battery winding It is stretched outside core and perpendicular to the rounded bottom surface of battery roll core.
Positive folding part 11 is not in contact with cathode folding part 21 with the core of battery, so being not in electric leakage or short The case where road.
In the present embodiment, positive elongated portion 12 is in same plane with cathode elongated portion 22, and plane is perpendicular to battery winding The rounded bottom surface of core, and the central shaft of battery roll core passes through plane.Positive elongated portion 12 is with cathode elongated portion 22 in same plane On do not intersect and do not contact, be also convenient for subsequent packaging operation.
In the present embodiment, which further includes positive pole ear glue and negative lug glue, and positive pole ear glue laminating is just The position that pole piece is in contact with anode ear 1, negative lug glue laminating is in the position that negative plate is in contact with negative electrode lug 2.
Disclosed above is only several specific embodiments of the utility model, but the utility model is not limited to this, The changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.

Claims (5)

1. a kind of unidirectional lug high power capacity cylindrical lithium ion power battery, which is characterized in that including positive plate, negative plate, anode Ear, negative electrode lug and isolation film, the isolation film are clamped between positive plate and negative plate, the winding starting of the positive plate The winding initiating terminal at end, the winding initiating terminal of isolation film and negative plate is aligned and winds to form battery roll core, the anode ear It is drawn from the winding clearing end of positive plate, the negative electrode lug is drawn from the winding clearing end of negative plate, the anode ear and cathode The lead direction of ear is identical, and the two is not in contact.
2. unidirectional lug high power capacity cylindrical lithium ion power battery according to claim 1, which is characterized in that the anode Ear includes positive folding part and positive elongated portion, and described anode folding part one end is drawn from positive plate, and positive folding part The other end stretches along the rounded bottom surface of battery roll core and is parallel to the rounded bottom surface of battery roll core, one end of the anode elongated portion It is docked with positive folding part, and the other end of positive elongated portion is stretched to outside battery roll core and perpendicular to the circular base of battery roll core Face.
3. unidirectional lug high power capacity cylindrical lithium ion power battery according to claim 2, which is characterized in that the cathode Ear includes cathode folding part and cathode elongated portion, and cathode folding part one end is drawn from negative plate, and cathode folding part The other end stretches along the rounded bottom surface of battery roll core and is parallel to the rounded bottom surface of battery roll core, one end of the cathode elongated portion It is docked with cathode folding part, and the other end of cathode elongated portion is stretched to outside battery roll core and perpendicular to the circular base of battery roll core Face.
4. unidirectional lug high power capacity cylindrical lithium ion power battery according to claim 3, which is characterized in that the anode Elongated portion and cathode elongated portion be in same plane, and the plane is perpendicular to the rounded bottom surface of battery roll core, and battery roll core Central shaft passes through the plane.
5. unidirectional lug high power capacity cylindrical lithium ion power battery according to claim 1, which is characterized in that the battery is also Including positive pole ear glue and negative lug glue, the positive pole ear glue laminating in the position that positive plate is in contact with anode ear, The negative lug glue laminating is in the position that negative plate is in contact with negative electrode lug.
CN201820154249.1U 2018-01-30 2018-01-30 Unidirectional lug high power capacity cylindrical lithium ion power battery Expired - Fee Related CN207731993U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820154249.1U CN207731993U (en) 2018-01-30 2018-01-30 Unidirectional lug high power capacity cylindrical lithium ion power battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820154249.1U CN207731993U (en) 2018-01-30 2018-01-30 Unidirectional lug high power capacity cylindrical lithium ion power battery

Publications (1)

Publication Number Publication Date
CN207731993U true CN207731993U (en) 2018-08-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114614147A (en) * 2022-03-16 2022-06-10 三一技术装备有限公司 Cylindrical battery and new energy vehicle
WO2023133785A1 (en) * 2022-01-14 2023-07-20 宁德时代新能源科技股份有限公司 Electrode assembly, battery cell, battery, and method and device for manufacturing electrode assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023133785A1 (en) * 2022-01-14 2023-07-20 宁德时代新能源科技股份有限公司 Electrode assembly, battery cell, battery, and method and device for manufacturing electrode assembly
CN114614147A (en) * 2022-03-16 2022-06-10 三一技术装备有限公司 Cylindrical battery and new energy vehicle

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GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 518000 4th Floor of No. 44 Hengtang Road, Shijing Community, Pingshan Office, Pingshan New District, Shenzhen City, Guangdong Province

Patentee after: SHENZHEN SUNHE ENERGY Co.,Ltd.

Address before: 518000 4th Floor of No. 44 Hengtang Road, Shijing Community, Pingshan Office, Pingshan New District, Shenzhen City, Guangdong Province

Patentee before: SHENZHEN SANHE CHAOYANG TECHNOLOGY Co.,Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180814

Termination date: 20220130