SE2330596A1 - End assembly and cylindrical secondary cell - Google Patents

End assembly and cylindrical secondary cell

Info

Publication number
SE2330596A1
SE2330596A1 SE2330596A SE2330596A SE2330596A1 SE 2330596 A1 SE2330596 A1 SE 2330596A1 SE 2330596 A SE2330596 A SE 2330596A SE 2330596 A SE2330596 A SE 2330596A SE 2330596 A1 SE2330596 A1 SE 2330596A1
Authority
SE
Sweden
Prior art keywords
secondary cell
end assembly
cylindrical secondary
protruding portion
cell
Prior art date
Application number
SE2330596A
Inventor
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 SE2330596A priority Critical patent/SE2330596A1/en
Publication of SE2330596A1 publication Critical patent/SE2330596A1/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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/578—Devices or arrangements for the interruption of current in response to pressure
    • 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)
  • Battery Mounting, Suspending (AREA)

Abstract

The disclosure provides an end assembly (1) for closing an end of a cylindrical secondary cell (2). The end assembly (1) comprises a plate shaped base portion (11), a breakable portion (12) arranged in the base portion (11), and a protruding portion (IB). The protruding portion (IB) comprises a side wall (131) comprising at least one opening (132) and a top surface (133) for connecting an external load. The protruding portion (13) is arranged around the breakable portion (12). The end assembly (1) provides a close to a cylindrical secondary cell (2) with venting functionality while still being few parts that may be preassembled. Also disclosed are a cylindrical secondary cell (2), a system (3) comprising the cell, and energy storage system comprising the system (3) and a vehicle (4) comprising the system (3).
SE2330596A 2023-12-21 2023-12-21 End assembly and cylindrical secondary cell SE2330596A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE2330596A SE2330596A1 (en) 2023-12-21 2023-12-21 End assembly and cylindrical secondary cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2330596A SE2330596A1 (en) 2023-12-21 2023-12-21 End assembly and cylindrical secondary cell

Publications (1)

Publication Number Publication Date
SE2330596A1 true SE2330596A1 (en) 2024-09-11

Family

ID=93013626

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2330596A SE2330596A1 (en) 2023-12-21 2023-12-21 End assembly and cylindrical secondary cell

Country Status (1)

Country Link
SE (1) SE2330596A1 (en)

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Legal Events

Date Code Title Description
NAV Patent application has lapsed