SE546565C2 - A terminal assembly and a venting arrangement for a secondary cell - Google Patents

A terminal assembly and a venting arrangement for a secondary cell

Info

Publication number
SE546565C2
SE546565C2 SE2330576A SE2330576A SE546565C2 SE 546565 C2 SE546565 C2 SE 546565C2 SE 2330576 A SE2330576 A SE 2330576A SE 2330576 A SE2330576 A SE 2330576A SE 546565 C2 SE546565 C2 SE 546565C2
Authority
SE
Sweden
Prior art keywords
secondary cell
terminal assembly
venting
venting arrangement
cylindrical secondary
Prior art date
Application number
SE2330576A
Other versions
SE2330576A1 (en
Inventor
Jessica Engman
Michael Shaughnessy
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 SE2330576A priority Critical patent/SE2330576A1/en
Publication of SE546565C2 publication Critical patent/SE546565C2/en
Publication of SE2330576A1 publication Critical patent/SE2330576A1/en
Priority to PCT/EP2024/087535 priority patent/WO2025132877A1/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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
    • H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
    • 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
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • 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
    • H01M50/552—Terminals characterised by their shape
    • H01M50/561—Hollow metallic terminals, e.g. terminal bushings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/179—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
    • 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)
  • Gas Exhaust Devices For Batteries (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

There is disclosed herein a venting arrangement (2000, 3000) and a terminal assembly (100, 200, 300) configured to seal an opening (534o) in a casing (534) of a cylindrical secondary cell (4000, 5000), wherein the terminal assembly (100, 200, 300) comprises a venting channel (130, 230, 330), and the venting channel (130, 230,330) is configured to vent gases generated upon a failure of the cylindrical secondary cell (4000, 5000), the venting arrangement (2000, 3000) comprising: the terminal assembly (100, 200, 300), and a failure vent (2100) arranged to block the venting channel (130, 230, 330) and configured to rupture in response to an internal pressure of the cylindrical secondary cell (4000, 5000) exceeding a threshold.
SE2330576A 2023-12-19 2023-12-19 A terminal assembly and a venting arrangement for a secondary cell SE2330576A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2330576A SE2330576A1 (en) 2023-12-19 2023-12-19 A terminal assembly and a venting arrangement for a secondary cell
PCT/EP2024/087535 WO2025132877A1 (en) 2023-12-19 2024-12-19 A terminal assembly and a venting arrangement for a secondary cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2330576A SE2330576A1 (en) 2023-12-19 2023-12-19 A terminal assembly and a venting arrangement for a secondary cell

Publications (2)

Publication Number Publication Date
SE546565C2 true SE546565C2 (en) 2024-12-03
SE2330576A1 SE2330576A1 (en) 2024-12-03

Family

ID=93651580

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2330576A SE2330576A1 (en) 2023-12-19 2023-12-19 A terminal assembly and a venting arrangement for a secondary cell

Country Status (2)

Country Link
SE (1) SE2330576A1 (en)
WO (1) WO2025132877A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05325930A (en) * 1992-05-20 1993-12-10 Hitachi Maxell Ltd Safety valve device for alkaline storage battery
JPH07230799A (en) * 1994-02-15 1995-08-29 Toshiba Battery Co Ltd Safety valve device for sealed battery
JPH11273649A (en) * 1998-03-19 1999-10-08 Sony Corp Rechargeable battery
WO2022029359A1 (en) * 2020-08-07 2022-02-10 Ochoa Gutierrez Pedro Electrode for electric battery, and structure for electrodes or associated battery
EP4096006A1 (en) * 2020-07-14 2022-11-30 LG Energy Solution, Ltd. Battery module having venting hole terminal, and battery pack and vehicle including same
EP4231435A1 (en) * 2022-02-16 2023-08-23 Northvolt AB Terminal part for a secondary cell

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR045377A1 (en) * 2003-08-15 2005-10-26 Rovcal Inc METHOD AND APPLIANCE FOR LOADING ELECTROCHEMICAL CELLS
CN116130876A (en) * 2023-02-22 2023-05-16 济宁海富光学科技有限公司 Explosion-proof cylindrical battery

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05325930A (en) * 1992-05-20 1993-12-10 Hitachi Maxell Ltd Safety valve device for alkaline storage battery
JPH07230799A (en) * 1994-02-15 1995-08-29 Toshiba Battery Co Ltd Safety valve device for sealed battery
JPH11273649A (en) * 1998-03-19 1999-10-08 Sony Corp Rechargeable battery
EP4096006A1 (en) * 2020-07-14 2022-11-30 LG Energy Solution, Ltd. Battery module having venting hole terminal, and battery pack and vehicle including same
WO2022029359A1 (en) * 2020-08-07 2022-02-10 Ochoa Gutierrez Pedro Electrode for electric battery, and structure for electrodes or associated battery
EP4231435A1 (en) * 2022-02-16 2023-08-23 Northvolt AB Terminal part for a secondary cell

Also Published As

Publication number Publication date
WO2025132877A1 (en) 2025-06-26
SE2330576A1 (en) 2024-12-03

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