CN207732025U - Centre goes out the high-capacity lithium ion power battery of lug - Google Patents

Centre goes out the high-capacity lithium ion power battery of lug Download PDF

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Publication number
CN207732025U
CN207732025U CN201820154314.0U CN201820154314U CN207732025U CN 207732025 U CN207732025 U CN 207732025U CN 201820154314 U CN201820154314 U CN 201820154314U CN 207732025 U CN207732025 U CN 207732025U
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CN
China
Prior art keywords
positive
lug
plate
negative
kong
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Expired - Fee Related
Application number
CN201820154314.0U
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Chinese (zh)
Inventor
许朝勇
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Shenzhen Sunhe Energy Co ltd
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Sunhe Energy Co Ltd
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Priority to CN201820154314.0U priority Critical patent/CN207732025U/en
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Publication of CN207732025U publication Critical patent/CN207732025U/en
Expired - Fee Related legal-status Critical Current
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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)

Abstract

The utility model discloses the high-capacity lithium ion power battery that a kind of centre goes out lug, including positive plate, negative plate, anode ear, negative electrode lug and isolation film, positive plate is equipped with the first positive polar region, the positive areas Kong Bo and the second positive polar region, the positive areas Kong Bo are arranged between the first positive polar region and the second positive polar region, negative plate is equipped with the first cathode area, the areas cathode Kong Bo and the second cathode area, the areas cathode Kong Bo are arranged between the first cathode area and the second cathode area, anode ear is riveted on the positive areas Kong Bo, negative electrode lug is riveted on the areas cathode Kong Bo, isolation film is clamped between positive plate and negative plate, positive plate, negative plate and isolation film wind to form battery roll core, anode ear and negative electrode lug are drawn from the centre position of core, and anode ear is not contacted with negative electrode lug.The power battery of the utility model can improve the integral energy density of battery, promote discharge performance, reduce cell resistance, realize higher capacity, higher efficiency.

Description

Centre goes out the high-capacity lithium ion power battery of lug
Technical field
The utility model is related to the high-capacity lithium-ions that the technical field of power battery more particularly to a kind of centre go out lug 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 lug lead-out mode is drawn from the end of pole piece Go out, 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 It is not high.
Utility model content
Shortcoming present in view of the above technology, the utility model provide a kind of centre that energy density is high and go out lug High-capacity lithium ion power battery.
In order to achieve the above object, a kind of centre of the utility model goes out the high-capacity lithium ion power battery of lug, including Positive plate, negative plate, anode ear, negative electrode lug and isolation film, the positive plate be equipped with the first positive polar region, the anode areas Kong Bo with And the second positive polar region, the anode areas Kong Bo are arranged between the first positive polar region and the second positive polar region, the negative plate is equipped with First cathode area, the areas cathode Kong Bo and the second cathode area, the areas the cathode Kong Bo are arranged in the first cathode area and the second cathode Between area, the anode ear is riveted on the positive areas Kong Bo, and the negative electrode lug is riveted on the areas cathode Kong Bo, and the isolation film is clamped in Between positive plate and negative plate, the positive plate, negative plate and isolation film wind to form battery roll core, the anode ear and Negative electrode lug is drawn from the centre position of core, and the anode ear is not contacted with negative electrode lug.
Wherein, the length of the positive plate and the length of negative plate are identical, the length of the first positive polar region and first negative The length of polar region is different, and the length and the length in the second cathode area of the second positive polar region are also different.
Wherein, which further includes positive pole ear glue and negative lug glue, and the positive pole ear glue is coated in positive plate At the riveting of anode ear, the negative plate is coated at the riveting of negative plate and negative electrode lug.
Wherein, the positive pole ear glue and negative lug glue are the black gel of insulation, black gel bandwidth For 5mm, it is 2mm, thickness 0.1mm that arc, which extends shoulder breadth,.
Wherein, which further includes aluminum plastic membrane shell, the aluminum plastic membrane shell be enclosed accommodating positive plate, negative plate with And the cavity of isolation film, the anode ear and negative electrode lug are stretched out from one end of aluminum plastic membrane shell.
The utility model has the beneficial effects that:
Compared with prior art, the centre of the utility model goes out the high-capacity lithium ion power battery of lug, by will just The positive areas Kong Bo of pole piece are arranged between the first positive polar region and the second positive polar region, and the areas cathode Kong Bo are arranged in the first cathode area Between the second cathode area, to ensure that anode ear and negative electrode lug can be stretched out from the intermediate of core, while anode is controlled The position in the areas Kong Bo and the areas cathode Kong Bo, so as to accurately control the centre-to-centre spacing between anode ear and negative electrode lug.This practicality is new The power battery of type can improve the integral energy density of battery, promote discharge performance, reduce cell resistance, realize that higher is held Amount, higher efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram for the high-capacity lithium ion power battery for going out lug among the utility model;
Fig. 2 is the positive plate structure chart for the high-capacity lithium ion power battery for going out lug among the utility model;
Fig. 3 is the negative plate structure figure for the high-capacity lithium ion power battery for going out lug among the utility model.
Main element symbol description is as follows:
10, positive plate 11, negative plate
12, anode ear 13, negative electrode lug
14, positive pole ear glue 15, negative lug glue
101, the first positive polar region 102, the anode areas Kong Bo
103, the second positive polar region
111, the first cathode area 112, the areas cathode Kong Bo
113, the second cathode area.
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 centre of the utility model goes out the high-capacity lithium ion power battery of lug, including positive plate 10, negative plate 11, anode ear 12, negative electrode lug 13 and isolation film, positive plate 10 are equipped with the empty foil of the first positive polar region 101, anode Area 102 and the second positive polar region 103, the positive areas Kong Bo 102 are arranged between the first positive polar region 101 and the second positive polar region 103, bear Pole piece 11 is equipped with the first cathode area 111, the areas 112 cathode Kong Bo and the second cathode area 113, and the setting of the areas cathode Kong Bo 112 exists Between first cathode area 111 and the second cathode area 113, anode ear 12 is riveted on the positive areas Kong Bo 102, and negative electrode lug 13 is riveted on negative The areas Ji Kongbo 112, isolation film are clamped between positive plate 10 and negative plate 11, positive plate 10, negative plate 11 and isolation film roll Around battery roll core is formed, anode ear 12 and negative electrode lug 13 are drawn from the centre position of core, and anode ear 12 and negative electrode lug 13 do not contact.
Compared to the prior art, the centre of the utility model goes out the high-capacity lithium ion power battery of lug, by will just The positive areas Kong Bo 102 of pole piece 10 are arranged between the first positive polar region 101 and the second positive polar region 103, and the areas cathode Kong Bo 112 are set It sets between the first cathode area 111 and the second cathode area 113, to ensure that anode ear 12 and negative electrode lug 13 can be from core It is intermediate stretch out, while the position in the positive areas Kong Bo 102 and the areas cathode Kong Bo 112 is controlled, so as to accurately control anode ear Centre-to-centre spacing between 12 and negative electrode lug 13.The power battery of the utility model can improve the integral energy density of battery, be promoted Discharge performance reduces cell resistance, realizes higher capacity, higher efficiency.
In the present embodiment, the length of positive plate 10 is identical as the length of negative plate 11, the length of the first positive polar region 101 with The length in the first cathode area 111 is different, and the length of the second positive polar region 103 and the length in the second cathode area 113 are also different.It is positive empty Foil area 102 and the areas cathode Kong Bo 112 are separately positioned on different location, to avoid connecing for anode ear 12 and negative electrode lug 13 as possible It touches.Certainly, the positive areas Kong Bo 102 and the position in the areas cathode Kong Bo 112 can be adjusted, to ensure anode ear 12 and negative electrode lug Centre-to-centre spacing between 13 is controllable.
In the present embodiment, which further includes positive pole ear glue 14 and negative lug glue 15, and positive pole ear glue 14 applies Positive plate 10 is overlayed on at the riveting of anode ear 12, negative plate 11 is coated in the riveting of negative plate 11 and negative electrode lug 13 Place.Positive pole ear glue 14 and negative lug glue 15 are the black gel of insulation, and black gel bandwidth is 5mm, arc Extension shoulder breadth is 2mm, thickness 0.1mm.Positive pole ear glue 14 and negative lug glue 15 are high-temperature insulation material.Gel Being stably connected between lug and pole piece is realized, the subsequent heat-sealing operation of lug is conducive to.
In the present embodiment, which further includes aluminum plastic membrane shell, and aluminum plastic membrane shell is enclosed accommodating positive plate 10, bears The cavity of pole piece 11 and isolation film, anode ear 12 and negative electrode lug 13 are stretched out from one end of aluminum plastic membrane shell.
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 centre goes out the high-capacity lithium ion power battery of lug, which is characterized in that including positive plate, negative plate, anode Ear, negative electrode lug and isolation film, the positive plate is equipped with the first positive polar region, the anode areas Kong Bo and the second positive polar region, described The positive areas Kong Bo are arranged between the first positive polar region and the second positive polar region, and the negative plate is equipped with the first cathode area, cathode sky Foil area and the second cathode area, the areas the cathode Kong Bo are arranged between the first cathode area and the second cathode area, the anode ear Be riveted on the positive areas Kong Bo, the negative electrode lug is riveted on the areas cathode Kong Bo, the isolation film be clamped in positive plate and negative plate it Between, the positive plate, negative plate and isolation film wind to form battery roll core, and the anode ear and negative electrode lug are from core Centre position is drawn, and the anode ear is not contacted with negative electrode lug.
2. centre according to claim 1 goes out the high-capacity lithium ion power battery of lug, which is characterized in that the anode The length of piece is identical as the length of negative plate, and the length of the first positive polar region is different from the length in the first cathode area, and described The length of two positive polar regions and the length in the second cathode area are also different.
3. centre according to claim 1 goes out the high-capacity lithium ion power battery of lug, which is characterized in that the battery is also Including positive pole ear glue and negative lug glue, the positive pole ear glue is coated at the riveting of positive plate and anode ear, The negative plate is coated at the riveting of negative plate and negative electrode lug.
4. centre according to claim 3 goes out the high-capacity lithium ion power battery of lug, which is characterized in that the anode Gel and negative lug glue are the black gel of insulation, and black gel bandwidth is 5mm, and arc extends shoulder breadth and is 2mm, thickness 0.1mm.
5. centre according to claim 1 goes out the high-capacity lithium ion power battery of lug, which is characterized in that the battery is also Including aluminum plastic membrane shell, the aluminum plastic membrane shell is enclosed the cavity of accommodating positive plate, negative plate and isolation film, it is described just Lug and negative electrode lug are stretched out from one end of aluminum plastic membrane shell.
CN201820154314.0U 2018-01-30 2018-01-30 Centre goes out the high-capacity lithium ion power battery of lug Expired - Fee Related CN207732025U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820154314.0U CN207732025U (en) 2018-01-30 2018-01-30 Centre goes out the high-capacity lithium ion power battery of lug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820154314.0U CN207732025U (en) 2018-01-30 2018-01-30 Centre goes out the high-capacity lithium ion power battery of lug

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CN207732025U true CN207732025U (en) 2018-08-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110224178A (en) * 2019-06-17 2019-09-10 东旭光电科技股份有限公司 Flexible battery and preparation method thereof
CN110707279A (en) * 2019-10-14 2020-01-17 江西佰利威新能源科技有限公司 Middle tab welding type lithium ion multiplying power battery
CN111725554A (en) * 2019-03-22 2020-09-29 深圳格林德能源集团有限公司 Design method for controlling back sealing step of top sealing position of soft package lithium ion battery
CN114335684A (en) * 2021-12-28 2022-04-12 安普瑞斯(无锡)有限公司 Lithium ion battery roll core and battery

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111725554A (en) * 2019-03-22 2020-09-29 深圳格林德能源集团有限公司 Design method for controlling back sealing step of top sealing position of soft package lithium ion battery
CN111725554B (en) * 2019-03-22 2021-08-27 深圳格林德能源集团有限公司 Design method for controlling back sealing step of top sealing position of soft package lithium ion battery
CN110224178A (en) * 2019-06-17 2019-09-10 东旭光电科技股份有限公司 Flexible battery and preparation method thereof
CN110707279A (en) * 2019-10-14 2020-01-17 江西佰利威新能源科技有限公司 Middle tab welding type lithium ion multiplying power battery
CN114335684A (en) * 2021-12-28 2022-04-12 安普瑞斯(无锡)有限公司 Lithium ion battery roll core and battery

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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