SE547910C2 - A current collector - Google Patents

A current collector

Info

Publication number
SE547910C2
SE547910C2 SE2430477A SE2430477A SE547910C2 SE 547910 C2 SE547910 C2 SE 547910C2 SE 2430477 A SE2430477 A SE 2430477A SE 2430477 A SE2430477 A SE 2430477A SE 547910 C2 SE547910 C2 SE 547910C2
Authority
SE
Sweden
Prior art keywords
electrode
tab
terminal
plane
current collector
Prior art date
Application number
SE2430477A
Other versions
SE2430477A1 (en
Inventor
Sanz Daniel Garcia
Danny Naar
Original Assignee
Northvolt Ab
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 Northvolt Ab filed Critical Northvolt Ab
Priority to SE2430477A priority Critical patent/SE2430477A1/en
Priority to PCT/EP2025/076761 priority patent/WO2026062165A1/en
Publication of SE547910C2 publication Critical patent/SE547910C2/en
Publication of SE2430477A1 publication Critical patent/SE2430477A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B23K2101/38—Conductors
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

A current collector (200) for connecting an electrode tab (108) of an electrode assembly (106) to an electrode terminal (104) of a case (102) in which the electrode assembly (106) is received. The current collector (200) comprises a tab part (202) configured to be welded to the electrode tab (108) and extending in a first plane; a terminal part (204) configured to be connected to the electrode terminal (104) and extending in a second plane perpendicular to the first plane; and a connection part (206) connecting the tab part (202) to the terminal part (204) to provide a first current path (Cl) between the electrode tab (108) and the electrode terminal (104), the connection part (206) extending in a third plane perpendicular to both the first plane and the second plane. The tab part (202) comprises a first weld region (212) and the terminal part (204) comprises a second weld region (214), the first and second weld regions (212, 214) welded together to provide a second current path (C2) between the electrode tab (108) and the electrode terminal (104).
SE2430477A 2024-09-19 2024-09-19 A current collector SE2430477A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2430477A SE2430477A1 (en) 2024-09-19 2024-09-19 A current collector
PCT/EP2025/076761 WO2026062165A1 (en) 2024-09-19 2025-09-18 A current collector, battery cell and method of manufacturing a current collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2430477A SE2430477A1 (en) 2024-09-19 2024-09-19 A current collector

Publications (2)

Publication Number Publication Date
SE547910C2 true SE547910C2 (en) 2025-12-23
SE2430477A1 SE2430477A1 (en) 2025-12-23

Family

ID=97215348

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2430477A SE2430477A1 (en) 2024-09-19 2024-09-19 A current collector

Country Status (2)

Country Link
SE (1) SE2430477A1 (en)
WO (1) WO2026062165A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102738428A (en) * 2011-03-29 2012-10-17 Sb锂摩托有限公司 Secondary battery comprising a detachable current collector
US20150287973A1 (en) * 2014-04-04 2015-10-08 Samsung Sdi Co., Ltd. Rechargeable battery
US20190067667A1 (en) * 2017-08-31 2019-02-28 Samsung Sdi Co., Ltd. Secondary battery
US10734654B2 (en) * 2017-02-06 2020-08-04 Toyota Jidosha Kabushiki Kaisha Secondary battery and secondary battery manufacturing method
US20220029253A1 (en) * 2019-02-21 2022-01-27 Samsung Sdi Co., Ltd. Secondary battery and method for manufacturing same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010001975A1 (en) * 2008-07-02 2010-01-07 株式会社ジーエス・ユアサコーポレーション Battery and method of manufacturing same
US9559339B2 (en) * 2011-04-19 2017-01-31 Samsung Sdi Co., Ltd. Secondary battery
KR101675621B1 (en) * 2013-04-18 2016-11-11 삼성에스디아이 주식회사 Secondary battery
KR102195727B1 (en) * 2014-01-06 2020-12-28 삼성에스디아이 주식회사 Secondary battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102738428A (en) * 2011-03-29 2012-10-17 Sb锂摩托有限公司 Secondary battery comprising a detachable current collector
US20150287973A1 (en) * 2014-04-04 2015-10-08 Samsung Sdi Co., Ltd. Rechargeable battery
US10734654B2 (en) * 2017-02-06 2020-08-04 Toyota Jidosha Kabushiki Kaisha Secondary battery and secondary battery manufacturing method
US20190067667A1 (en) * 2017-08-31 2019-02-28 Samsung Sdi Co., Ltd. Secondary battery
US20220029253A1 (en) * 2019-02-21 2022-01-27 Samsung Sdi Co., Ltd. Secondary battery and method for manufacturing same

Also Published As

Publication number Publication date
WO2026062165A1 (en) 2026-03-26
SE2430477A1 (en) 2025-12-23

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