CN206076349U - Electric connecting sheet and battery modules - Google Patents

Electric connecting sheet and battery modules Download PDF

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Publication number
CN206076349U
CN206076349U CN201620885807.2U CN201620885807U CN206076349U CN 206076349 U CN206076349 U CN 206076349U CN 201620885807 U CN201620885807 U CN 201620885807U CN 206076349 U CN206076349 U CN 206076349U
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China
Prior art keywords
lamellar body
connecting sheet
electric connecting
conductive lamellar
conductive
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CN201620885807.2U
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Chinese (zh)
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田丰
吕欣
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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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 provides a kind of electric connecting sheet and battery modules.The electric connecting sheet of the utility model first aspect includes:First conductive lamellar body;Second conductive lamellar body, it is different from the first conductive pellet material, and be fixedly connected with the first conductive lamellar body.The battery modules of the utility model second aspect include:Multiple battery cores, each battery core have positive pole ear and negative lug;And the electric connecting sheet of the utility model first aspect, by multiple battery core connection in series-parallel.The battery core is connected with the second conductive lamellar body by by one electric connecting sheet of the battery modules of the utility model second aspect battery core connected by first conductive lamellar body is cascaded.The battery modules of the utility model third aspect include:Multiple battery cores, each battery core have positive pole ear and negative lug;And the electric connecting sheet of the utility model first aspect.Conductive positive pole ear of the lamellar body with battery modules as the corresponding battery core of positive output pole of the first of the electric connecting sheet of the battery modules of the utility model third aspect is fixedly connected.

Description

Electric connecting sheet and battery modules
Technical field
The utility model is related to field of batteries, more particularly to a kind of electric connecting sheet and battery modules.
Background technology
In the grouping procedure of battery modules, need the battery core connection in series-parallel in battery modules using electric connecting sheet, however, Electric connecting sheet is needed the positive pole ear of part battery core is fixed with the negative lug of another part battery core and is electrically connected, due to positive pole pole Ear and negative lug are made from a variety of materials (positive pole ear is made of aluminum, and negative lug is made of copper) respectively, so, it is Ensure electric connecting sheet and positive pole ear and the weld strength of negative lug simultaneously, Copper-Aluminum compound is usually used brings making to be electrically connected Contact pin.But, the high cost of Copper-Aluminum compound band, and made by electric connecting sheet shape be limited by composite band form-factor (width, Thickness, copper material aluminium area accounting etc.), increased design difficulty;Meanwhile, composite band should not bend, increased design difficulty and Technology difficulty.When the output pole plate of battery modules is made using Copper-Aluminum compound band, there is also such problem.
Utility model content
In view of problem present in background technology, the purpose of this utility model is to provide a kind of electric connecting sheet and battery mould Group, which can reduce the design difficulty and technology difficulty of electric connecting sheet and battery modules, and each battery core connects in improving battery modules The reliability for connecing.
To achieve these goals, in a first aspect, the utility model provide a kind of electric connecting sheet, which includes:First Conductive lamellar body;And the second conductive lamellar body, it is different from the first conductive pellet material, and be fixed together with the first conductive lamellar body.
In the electric connecting sheet according to the utility model first aspect, due to the first conductive lamellar body and second of electric connecting sheet The material of conductive lamellar body is different, so electric connecting sheet can be fixedly connected from different materials simultaneously, and ensure that connection Intensity, and reduce this while connecting the design difficulty and technology difficulty of the electric connecting sheet of different materials.
To achieve these goals, in second aspect, the utility model provides a kind of battery modules, and which includes:It is multiple Battery core, each battery core have positive pole ear and negative lug;And the electric connecting sheet described in the utility model first aspect, by institute State multiple battery core connection in series-parallel.The conductive lamellar body of the first of each electric connecting sheet fixes electrical connection with the positive pole ear of corresponding battery core, and The material of the first conductive lamellar body is identical with the material of positive pole ear;The conductive lamellar body of the second of each electric connecting sheet and corresponding battery core Negative lug fixes electrical connection, and the material of the second conductive lamellar body is identical with the material of negative lug;Wherein, an electric connecting sheet The battery core connected by the first of one electric connecting sheet conductive lamellar body and the second of one electric connecting sheet the conductive lamellar body The battery core for being connected is cascaded.
In the battery modules according to the utility model second aspect, as battery modules will be described more using electric connecting sheet Individual battery core connection in series-parallel, and the planform of electric connecting sheet can be freely designed according to the demand of battery modules, reduce electric connecting sheet And the design difficulty and technology difficulty of battery modules;In addition, the material of the first conductive lamellar body is identical with the material of positive pole ear, the The material of two conductive lamellar bodies is identical with the material of negative lug, therefore conductive the positive pole ear of correspondence battery core is welded to first Lamellar body and when the negative lug of correspondence battery core is welded to the second conductive lamellar body, it is to avoid the welding of foreign material occur, enter And the bonding strength of guarantee electric connecting sheet and the positive pole ear and negative lug of corresponding battery core, improve the reliability of battery modules.
To achieve these goals, in the third aspect, the utility model includes there is provided a kind of battery modules:Multiple electricity Core, each battery core have positive pole ear and negative lug;And the electric connecting sheet described in the utility model first aspect.The electrical connection Positive pole ear of the conductive lamellar body of the first of piece with battery modules as the corresponding battery core of positive output pole fixes electrical connection, and first The material of conductive lamellar body is identical with the material of positive pole ear;Second conductive lamellar body of the electric connecting sheet for external electrical device Fixed electrical connection.
In the battery modules according to the utility model third aspect, due to the material and positive pole ear of the first conductive lamellar body Material it is identical, therefore be welded to the first conductive lamellar body using battery modules as the positive pole ear of the corresponding battery core of positive output pole When, the welding of foreign material, and then the bonding strength of guarantee electric connecting sheet and the positive pole ear of corresponding battery core can be avoided the occurrence of, Improve the reliability of battery modules;Meanwhile, the second conductive lamellar body can ensure that battery modules and the reliability of external electrical device are electrically connected Connect;Positive output pole of the electric connecting sheet as battery modules, planform can be freely designed according to the demand of battery modules, reduce The design difficulty and technology difficulty of electric connecting sheet and battery modules.
To achieve these goals, in fourth aspect, the utility model includes there is provided a kind of battery modules:Multiple electricity Core, each battery core have positive pole ear and negative lug;And the electric connecting sheet described in the utility model first aspect.The electrical connection Negative lug of the conductive lamellar body of the first of piece with battery modules as the corresponding battery core of negative output pole fixes electrical connection, and first The material of conductive lamellar body is identical with the material of negative lug;Second conductive lamellar body of the electric connecting sheet for external electrical device Fixed electrical connection.
In the battery modules according to the utility model fourth aspect, due to the material and negative lug of the first conductive lamellar body Material it is identical, therefore be welded to the first conductive lamellar body using battery modules as the negative lug of the corresponding battery core of negative output pole When, the welding of foreign material, and then the bonding strength of guarantee electric connecting sheet and the negative lug of corresponding battery core can be avoided the occurrence of, Improve the reliability of battery modules;Meanwhile, the second conductive lamellar body can ensure that battery modules and the reliability of external electrical device are electrically connected Connect;Negative output pole of the electric connecting sheet as battery modules, planform can be freely designed according to the demand of battery modules, reduce The design difficulty and technology difficulty of electric connecting sheet and battery modules.
Description of the drawings
Fig. 1 is the schematic diagram of the embodiment according to electric connecting sheet of the present utility model;
Fig. 2 is the schematic diagram of another embodiment according to electric connecting sheet of the present utility model;
Fig. 3 is the schematic diagram according to battery modules of the present utility model.
Wherein, description of reference numerals is as follows:
1 electric connecting sheet 122 connects perforate
11 first 2 battery cores of conductive lamellar body
111 first 21 positive pole ears of opening
12 second 22 negative lugs of conductive lamellar body
121 second openings
Specific embodiment
With reference to the accompanying drawings describing electric connecting sheet of the present utility model and battery modules in detail.
The electric connecting sheet according to the utility model first aspect is illustrated first.
Referring to figs. 1 to Fig. 3, included according to electric connecting sheet of the present utility model 1:First conductive lamellar body 11;And second lead Electric lamellar body 12, it is different from the first 11 material of conductive lamellar body, and be fixed together with the first conductive lamellar body 11.
According in electric connecting sheet of the present utility model 1, due to the first conductive lamellar body 11 and second of electric connecting sheet 1 it is conductive The material of lamellar body 12 is different, thus electric connecting sheet 1 can simultaneously from different material (the same materials of the first conductive lamellar body 11 Material is fixedly connected, and the same material of the second conductive lamellar body 12 is fixedly connected) it is fixedly connected, and ensure that the strong of connection Degree, and reduce this while connecting the design difficulty and technology difficulty of the electric connecting sheet 1 of different materials.
In the embodiment according to electric connecting sheet of the present utility model 1, referring to figs. 1 to Fig. 3, the first 11 He of conductive lamellar body One in second conductive lamellar body 12 bends to be overlapped in the first conductive lamellar body 11 and the second conductive lamellar body 12 in edge part On another edge part and it is fixed together.
In the embodiment according to electric connecting sheet of the present utility model 1, the first conductive lamellar body 11 and the second conductive lamellar body 12 are fixed together by ultrasonic bonding or friction welding.Even if the material of the first conductive lamellar body 11 and the second conductive lamellar body 12 Difference, ultrasonic bonding and friction welding also ensure that the solder side between the first conductive lamellar body 11 and the second conductive lamellar body 12 Product and weld strength (in the prior art, cannot then ensure the first conductive lamellar body 11 and the second conductive lamellar body using laser welding Weld strength between 12).
In the embodiment according to electric connecting sheet of the present utility model 1, the first conductive lamellar body 11 is made of aluminum;Second leads Electric lamellar body 12 is made of copper.First conductive lamellar body 11 can be prefabricated into required structure sample through techniques such as punching, bendings by aluminium Formula, the structural style that the second conductive lamellar body 12 can be by copper material needed for the techniques such as punching, bending be prefabricated into, again by the after making One conductive lamellar body 11 and the second conductive lamellar body 12 weld together.
In the embodiment according to electric connecting sheet of the present utility model 1, referring to figs. 1 to Fig. 3, the first conductive lamellar body 11 has There is the first opening 111;Second conductive lamellar body 12 is with the second opening 121.
Secondly the battery modules according to the utility model second aspect are illustrated.
With reference to Fig. 3, included according to battery modules of the present utility model:Multiple battery cores 2, each battery core 2 have positive pole ear 21 With negative lug 22;And the electric connecting sheet 1 described in the utility model first aspect, by 2 connection in series-parallel of the plurality of battery core.
The conductive lamellar body 11 of the first of each electric connecting sheet 1 fixes electrical connection, and first with the positive pole ear 21 of corresponding battery core 2 The material of conductive lamellar body 11 is identical with the material of positive pole ear 21;The conductive lamellar body 12 of the second of each electric connecting sheet 1 and corresponding electricity The negative lug 22 of core 2 fixes electrical connection, and the material of the second conductive lamellar body 12 is identical with the material of negative lug 22;Wherein, The battery core 2 connected by the first of one electric connecting sheet 1 conductive lamellar body 11 is electrically connected by one electric connecting sheet 1 with one The battery core 2 connected by the conductive lamellar body 12 of the second of piece 1 is cascaded.
According in battery modules of the present utility model, due to battery modules using electric connecting sheet 1 by the plurality of battery core 2 Connection in series-parallel, and the planform of electric connecting sheet 1 can be freely designed according to the demand of battery modules, reduce electric connecting sheet 1 and electricity The design difficulty and technology difficulty of pond module;In addition, the material of the first conductive lamellar body 11 is identical with the material of positive pole ear 21, the The material of two conductive lamellar bodies 12 is identical with the material of negative lug 22, therefore the positive pole ear 21 of correspondence battery core 2 is being welded to First conductive lamellar body 11 and when the negative lug 22 of correspondence battery core 2 is welded to the second conductive lamellar body 12, it is to avoid occur different The welding of material, and then the bonding strength of guarantee electric connecting sheet 1 and the positive pole ear 21 and negative lug 22 of corresponding battery core 2 are planted, Improve the reliability of battery modules.
In the embodiment according to battery modules of the present utility model, with reference to Fig. 3, the first conductive lamellar body 11 has first Opening 111;Accordingly, the positive pole ear 21 of correspondence battery core 2 is passed through, is bent simultaneously from the first opening 111 of the first conductive lamellar body 11 It is fixed on the upper surface of the first conductive lamellar body 11.
In the embodiment according to battery modules of the present utility model, the positive pole ear 21 of correspondence battery core 2 is led with first The upper surface of electric lamellar body 11 is fixed together by laser welding.Due to the material and first of the positive pole ear 21 of correspondence battery core 2 The material of conductive lamellar body 11 is identical, so laser welding can ensure weld strength between the two.
In the embodiment according to battery modules of the present utility model, with reference to Fig. 3, the second conductive lamellar body 12 has second Opening 121;Accordingly, the negative lug 22 of correspondence battery core 2 is passed through, is bent simultaneously from the second opening 121 of the second conductive lamellar body 12 It is fixed on the upper surface of the second conductive lamellar body 12.
In the embodiment according to battery modules of the present utility model, the negative lug 22 of correspondence battery core 2 is led with second The upper surface of electric lamellar body 12 is fixed together by laser welding.Due to the material and second of the negative lug 22 of correspondence battery core 2 The material of conductive lamellar body 12 is identical, so laser welding can ensure weld strength between the two.
Then the battery modules according to the utility model third aspect are illustrated.
With reference to Fig. 3, included according to battery modules of the present utility model:Multiple battery cores 2, each battery core 2 have positive pole ear 21 With negative lug 22;And the electric connecting sheet 1 described in the utility model first aspect.
The positive pole of first conductive lamellar body 11 of the electric connecting sheet 1 and battery modules as the corresponding battery core 2 of positive output pole Lug 21 fixes electrical connection, and the material of the first conductive lamellar body 11 is identical with the material of positive pole ear 21;The of the electric connecting sheet 1 Two conductive lamellar bodies 12 are electrically connected for being fixed with external electrical device.
According in battery modules of the present utility model, due to the material of material and the positive pole ear 21 of the first conductive lamellar body 11 Material is identical, therefore is being welded to the first conductive lamellar body using battery modules as the positive pole ear 21 of the corresponding battery core 2 of positive output pole The welding of foreign material when 11, can be avoided the occurrence of, and then ensures the company of electric connecting sheet 1 and the positive pole ear 21 of corresponding battery core 2 Intensity is connect, the reliability of battery modules is improved;Meanwhile, (material of the second conductive lamellar body 12 can be conduction to the second conductive lamellar body 12 Property more excellent copper) can ensure battery modules and external electrical device (can be other battery modules, its alternatively inside battery bag Its part) reliable electrical connection;Positive output pole of the electric connecting sheet 1 as battery modules, planform can be according to battery modules Demand freely design, reduce the design difficulty and technology difficulty of electric connecting sheet 1 and battery modules.
In the embodiment according to battery modules of the present utility model, with reference to Fig. 3, the first conductive lamellar body 11 has first Opening 111;Accordingly, the positive pole ear 21 of correspondence battery core 2 is passed through, is bent simultaneously from the first opening 111 of the first conductive lamellar body 11 It is fixed on the upper surface of the first conductive lamellar body 11.
In the embodiment according to battery modules of the present utility model, the positive pole ear 21 of correspondence battery core 2 is led with first The upper surface of electric lamellar body 11 is fixed together by laser welding.
In the embodiment according to battery modules of the present utility model, the second conductive lamellar body 12 of electric connecting sheet 1 is provided with The connection perforate 122 being fixedly connected with external electrical device.
Battery modules according to the utility model fourth aspect are illustrated finally.
Included according to battery modules of the present utility model:Multiple battery cores 2, each battery core 2 have positive pole ear 21 and negative pole pole Ear 22;And the electric connecting sheet 1 described in the utility model first aspect.
The negative pole of first conductive lamellar body 11 of the electric connecting sheet 1 and battery modules as the corresponding battery core 2 of negative output pole Lug 22 fixes electrical connection, and the material of the first conductive lamellar body 11 is identical with the material of negative lug 22;The of the electric connecting sheet 1 Two conductive lamellar bodies 12 are electrically connected for being fixed with external electrical device.
According in battery modules of the present utility model, due to the material of material and the negative lug 22 of the first conductive lamellar body 11 Material is identical, therefore is being welded to the first conductive lamellar body using battery modules as the negative lug 22 of the corresponding battery core 2 of negative output pole The welding of foreign material when 11, can be avoided the occurrence of, and then ensures the company of electric connecting sheet 1 and the negative lug 22 of corresponding battery core 2 Intensity is connect, the reliability of battery modules is improved;Meanwhile, the second conductive lamellar body 12 can ensure battery modules and external electrical device The reliable electrical connection of (can be other battery modules, other parts alternatively inside battery bag);Electric connecting sheet 1 is used as battery mould The negative output pole of group, planform can be freely designed according to the demand of battery modules, reduction electric connecting sheet 1 and battery modules Design difficulty and technology difficulty.
In the embodiment according to battery modules of the present utility model, the first conductive lamellar body 11 is with the first opening 111; Accordingly, the negative lug 22 of correspondence battery core 2 passes through, bends and is fixed on the from the first opening 111 of the first conductive lamellar body 11 The upper surface of one conductive lamellar body 11.
In the embodiment according to battery modules of the present utility model, the negative lug 22 of correspondence battery core 2 is led with first The upper surface of electric lamellar body 11 is fixed together by laser welding.
In the embodiment according to battery modules of the present utility model, the second conductive lamellar body 12 of electric connecting sheet 1 is provided with The connection perforate 122 being fixedly connected with external electrical device.

Claims (9)

1. a kind of electric connecting sheet (1), it is characterised in that include:
First conductive lamellar body (11);And
Second conductive lamellar body (12), it is different from the first conductive lamellar body (11) material;
Wherein, in the first conductive lamellar body (11) and the second conductive lamellar body (12) is led with being overlapped on first in edge part bending On another edge part in electric lamellar body (11) and the second conductive lamellar body (12) and it is fixed together.
2. electric connecting sheet (1) according to claim 1, it is characterised in that
First conductive lamellar body (11) is made of aluminum;
Second conductive lamellar body (12) is made of copper.
3. electric connecting sheet (1) according to claim 1, it is characterised in that
First conductive lamellar body (11) is with the first opening (111);
Second conductive lamellar body (12) is with the second opening (121).
4. a kind of battery modules, including:
Multiple battery cores (2), each battery core (2) is with positive pole ear (21) and negative lug (22);
Characterized in that, battery modules also include:
Electric connecting sheet (1) according to any one of claim 1-2, by the plurality of battery core (2) connection in series-parallel;
The conductive lamellar body (11) of the first of each electric connecting sheet (1) and the fixed electrical connection of the positive pole ear (21) of corresponding battery core (2), and The material of the first conductive lamellar body (11) is identical with the material of positive pole ear (21);
The conductive lamellar body (12) of the second of each electric connecting sheet (1) and the fixed electrical connection of the negative lug (22) of corresponding battery core (2), and The material of the second conductive lamellar body (12) is identical with the material of negative lug (22);
Wherein, by an electric connecting sheet (1) battery core connected by the first of one electric connecting sheet (1) the conductive lamellar body (11) (2) battery core (2) being connected with the second of one electric connecting sheet (1) the conductive lamellar body (12) is cascaded.
5. battery modules according to claim 4, it is characterised in that
First conductive lamellar body (11) is with the first opening (111);
The positive pole ear (21) of correspondence battery core (2) from the first opening (111) of the first conductive lamellar body (11) through, bend and fixed In the upper surface of the first conductive lamellar body (11).
6. battery modules according to claim 4, it is characterised in that
Second conductive lamellar body (12) is with the second opening (121);
The negative lug (22) of correspondence battery core (2) from the second opening (121) of the second conductive lamellar body (12) through, bend and fixed In the upper surface of the second conductive lamellar body (12).
7. a kind of battery modules, including:
Multiple battery cores (2), each battery core (2) is with positive pole ear (21) and negative lug (22);
Characterized in that, battery modules also include:
Electric connecting sheet (1) according to any one of claim 1-2;
The first conductive lamellar body (11) of the electric connecting sheet (1) and battery modules as positive output pole corresponding battery core (2) just The fixed electrical connection of pole lug (21), and the material of the first conductive lamellar body (11) is identical with the material of positive pole ear (21);
The conductive lamellar body (12) of the second of the electric connecting sheet (1) is electrically connected for being fixed with external electrical device.
8. battery modules according to claim 7, it is characterised in that
First conductive lamellar body (11) is with the first opening (111);
The positive pole ear (21) of correspondence battery core (2) from the first opening (111) of the first conductive lamellar body (11) through, bend and fixed In the upper surface of the first conductive lamellar body (11).
9. a kind of battery modules, including:
Multiple battery cores (2), each battery core (2) is with positive pole ear (21) and negative lug (22);
Characterized in that, battery modules also include:
Electric connecting sheet (1) according to any one of claim 1-2;
The conductive lamellar body (11) of the first of the electric connecting sheet (1) is with battery modules as the negative of the corresponding battery core (2) of negative output pole The fixed electrical connection of pole lug (22), and the material of the first conductive lamellar body (11) is identical with the material of negative lug (22);
The conductive lamellar body (12) of the second of the electric connecting sheet (1) is electrically connected for being fixed with external electrical device.
CN201620885807.2U 2016-08-16 2016-08-16 Electric connecting sheet and battery modules Active CN206076349U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201620885807.2U CN206076349U (en) 2016-08-16 2016-08-16 Electric connecting sheet and battery modules

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Publication Number Publication Date
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108365154A (en) * 2018-01-31 2018-08-03 北京海博思创科技有限公司 Soft-package battery core unit, soft-package battery core and soft-package battery
CN108735957A (en) * 2017-04-19 2018-11-02 宁德时代新能源科技股份有限公司 Battery module
CN109494496A (en) * 2017-09-13 2019-03-19 河北银隆新能源有限公司 Be flexible coupling piece and its square housing battery
CN109935772A (en) * 2017-12-15 2019-06-25 郑州深澜动力科技有限公司 A kind of battery case and its battery modules, conductive connecting piece
WO2021027535A1 (en) * 2019-08-13 2021-02-18 宁德时代新能源科技股份有限公司 Secondary battery
CN113381132A (en) * 2021-06-03 2021-09-10 珠海冠宇电池股份有限公司 Multi-tab battery core and battery

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108735957A (en) * 2017-04-19 2018-11-02 宁德时代新能源科技股份有限公司 Battery module
CN109494496A (en) * 2017-09-13 2019-03-19 河北银隆新能源有限公司 Be flexible coupling piece and its square housing battery
CN109935772A (en) * 2017-12-15 2019-06-25 郑州深澜动力科技有限公司 A kind of battery case and its battery modules, conductive connecting piece
CN108365154A (en) * 2018-01-31 2018-08-03 北京海博思创科技有限公司 Soft-package battery core unit, soft-package battery core and soft-package battery
WO2021027535A1 (en) * 2019-08-13 2021-02-18 宁德时代新能源科技股份有限公司 Secondary battery
CN113381132A (en) * 2021-06-03 2021-09-10 珠海冠宇电池股份有限公司 Multi-tab battery core and battery
CN113381132B (en) * 2021-06-03 2023-03-14 珠海冠宇电池股份有限公司 Multi-tab battery cell and battery

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