SE546992C2 - A cylindrical can for secondary cells - Google Patents

A cylindrical can for secondary cells

Info

Publication number
SE546992C2
SE546992C2 SE2251576A SE2251576A SE546992C2 SE 546992 C2 SE546992 C2 SE 546992C2 SE 2251576 A SE2251576 A SE 2251576A SE 2251576 A SE2251576 A SE 2251576A SE 546992 C2 SE546992 C2 SE 546992C2
Authority
SE
Sweden
Prior art keywords
cylindrical
zone
transition area
top portion
length
Prior art date
Application number
SE2251576A
Other languages
Swedish (sv)
Other versions
SE2251576A1 (en
Inventor
Koki Inoue
Saurabh Bidari
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 SE2251576A priority Critical patent/SE546992C2/en
Priority to US18/390,132 priority patent/US20240213584A1/en
Publication of SE2251576A1 publication Critical patent/SE2251576A1/en
Publication of SE546992C2 publication Critical patent/SE546992C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • 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
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • H01M50/133—Thickness
    • 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
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/167—Lids or covers characterised by the methods of assembling casings with lids by crimping
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • 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
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

This disclosure presents a cylindrical can (1) for a cylindrical secondary cell. The cylindrical can (1) extends along a longitudinal axis (LA) and comprises an opening (2) for jellyroll insertion, a top portion (10), a wall portion (20) and a transition area (15) between the top portion (10) and the wall portion (20). The wall portion (20) has a smaller thickness than the top portion (10), and the transition area (15) has a thickness which increases gradually from the wall portion (20) towards the top portion (10) by a slope value. The slope value is defined by a length of the transition area (15) with respect to a wall thickness change of the cylindrical can (1) in the transition area (15) and lies within the range of 5 to 120 over a length of at least 1.0 mm of the can.

Claims (10)

  1. Claims A cylindrical can for a cylindrical secondary cell, said cylindrical can eXtending along a longitudinal aXis (LA), wherein the cylindrical can (1) comprises: an opening (2) at a proXimal end (3) of the cylindrical can (1) for jellyroll insertion, a top portion (10), a wall portion (20) and a transition area (15) between the top portion (10) and the wall portion (20), characterised in that the top portion (10) comprises a cylindrical proximal zone (11) facing the proximal end (3) of the cylindrical can (1), and a cylindrical distal zone (12) defining a beading zone, wherein the wall portion (20) has a smaller thickness than the top portion (10), and wherein the transition area (15) has a thickness which increases gradually from the wall portion (20) towards the top portion (10) by a slope value, wherein the slope value is defined by a length (L) of the transition area (15) with respect to a wall thickness change (AT) of the cylindrical can (1) in the transition area (15), wherein the length (L) of the transition area (15) eXtends in a direction parallel with the longitudinal axis (LA) of the cylindrical can (1), wherein the thickness change of the cylindrical can (1) occurs in a transverse direction with respect to the longitudinal aXis (LA) of the cylindrical can (1), and wherein the slope value lies within the range of 5 to 120 over a length of at least 1.0 mm of the can. The cylindrical can according to claim 1, wherein the slope value lies within the range of 10 to 100, preferably within 15 to 90, such as within 30 to 80, or 50 to The cylindrical can according to claim 1 or 2, wherein the transition area (15) eXtends over a length of 1.0 to 3.0 mm of the cylindrical can (1), preferably over a length of 1.to 2.5 mm, and more preferably over a length of 2.0 mm. The cylindrical can according to any one of the preceding claims, wherein the thickness change of the cylindrical can (1) in the transition area (15) ranges between 0.025 and 0.105 mm, preferably between 0.025 and 0.085 mm, more preferably between 0.025 and 0. The cy1indrica1 can according to any one of the preceding c1aims, wherein the beading zone is 1ocated and eXtends in a direction para11e1 to the 1ongitudina1 aXis (LA) between 4.2 to 5.2 mm and 6.3 to 7.3 mm from the opening (2) of the cy1indrica1 can (1). The cy1indrica1 can according to any one of the preceding c1aims, wherein the transition area (15) is 1ocated below the beading zone and eXtends at a distance of between 6.3 to 7.3 mm and 8.3 to 9.3 mm from the opening (2) of the cy1indrica1 can (1). The cy1indrica1 can according to any one of the preceding c1aims, further comprising a bottom portion (30) at a dista1 end (4) of the cy1indrica1 can (1), wherein the wa11 portion (20) eXtends between the top portion (10) and the bottom portion (30). The cy1indrica1 can according to c1aim 7, wherein the bottom portion (30) has a thickness of 0.30 mm. The cy1indrica1 can according to c1aim 7 or 8, wherein the respective thicknesses of the top portion (10), the bottom portion (30) and the wa11 portion (20) are substantia11y uniform. A secondary ce11 for a secondary battery, comprising a cy1indrica1 can (1) according to any one of the preceding c1aims, a je11yro11 contained in the cy1indrica1 can (1), and a cap assemb1y, wherein the cy1indrica1 can (1) is beaded at the dista1 zone (12) and the interrnediate zone (13) or the dista1 zone (12) which defines a beading zone, wherein the cy1indrica1 can (1) is crimped at the proXima1 zone (11) and/or the intermediate zone (13) which defines a crimp zone, and wherein the cap assemb1y is arranged between the beading zone and the crimp zone.
SE2251576A 2022-12-23 2022-12-23 A cylindrical can for secondary cells SE546992C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2251576A SE546992C2 (en) 2022-12-23 2022-12-23 A cylindrical can for secondary cells
US18/390,132 US20240213584A1 (en) 2022-12-23 2023-12-20 Cylindrical can for secondary cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2251576A SE546992C2 (en) 2022-12-23 2022-12-23 A cylindrical can for secondary cells

Publications (2)

Publication Number Publication Date
SE2251576A1 SE2251576A1 (en) 2024-06-24
SE546992C2 true SE546992C2 (en) 2025-03-25

Family

ID=91582913

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2251576A SE546992C2 (en) 2022-12-23 2022-12-23 A cylindrical can for secondary cells

Country Status (2)

Country Link
US (1) US20240213584A1 (en)
SE (1) SE546992C2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1083800A (en) * 1996-09-10 1998-03-31 Kishimoto Akira Battery can and method of manufacturing dry battery using this can
US20090068557A1 (en) * 2005-07-21 2009-03-12 Panasonic Corporation Battery Can and Method of Manufacturing the Same
EP2328198A1 (en) * 2008-09-25 2011-06-01 FDK Energy Co., Ltd. Battery can and alkaline battery
JP2013073804A (en) * 2011-09-28 2013-04-22 Fdk Energy Co Ltd Cathode can for lithium battery, lithium battery, and method for manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1083800A (en) * 1996-09-10 1998-03-31 Kishimoto Akira Battery can and method of manufacturing dry battery using this can
US20090068557A1 (en) * 2005-07-21 2009-03-12 Panasonic Corporation Battery Can and Method of Manufacturing the Same
EP2328198A1 (en) * 2008-09-25 2011-06-01 FDK Energy Co., Ltd. Battery can and alkaline battery
JP2013073804A (en) * 2011-09-28 2013-04-22 Fdk Energy Co Ltd Cathode can for lithium battery, lithium battery, and method for manufacturing the same

Also Published As

Publication number Publication date
SE2251576A1 (en) 2024-06-24
US20240213584A1 (en) 2024-06-27

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