SE546990C2 - A cylindrical can for secondary cells - Google Patents

A cylindrical can for secondary cells

Info

Publication number
SE546990C2
SE546990C2 SE2251574A SE2251574A SE546990C2 SE 546990 C2 SE546990 C2 SE 546990C2 SE 2251574 A SE2251574 A SE 2251574A SE 2251574 A SE2251574 A SE 2251574A SE 546990 C2 SE546990 C2 SE 546990C2
Authority
SE
Sweden
Prior art keywords
zone
cylindrical
proximal
inner circumference
preferab1y
Prior art date
Application number
SE2251574A
Other languages
Swedish (sv)
Other versions
SE2251574A1 (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 SE2251574A priority Critical patent/SE546990C2/en
Priority to US18/392,062 priority patent/US20240213585A1/en
Publication of SE2251574A1 publication Critical patent/SE2251574A1/en
Publication of SE546990C2 publication Critical patent/SE546990C2/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
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • 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
    • 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
    • H01M10/05—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
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • 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
    • H01M50/10—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
    • 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
    • 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
    • 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)
  • Inorganic Chemistry (AREA)
  • Prostheses (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

This disclosure presents a cylindrical can for a cylindrical secondary cell. The cylindrical can extends along a longitudinal axis (LA) and comprises an opening at a proximal end of the cylindrical can for jellyroll insertion, and a top portion (10) comprising a cylindrical proximal zone (11), a cylindrical distal zone (12) and an intermediate zone (13) arranged and extending between the cylindrical proximal zone (11) and the cylindrical distal zone (12). Each one of the cylindrical proximal zone (11) and the cylindrical distal zone (12) has an inner circumference and an outer circumference, respectively, where a first distance (rl), from the inner circumference of the cylindrical proximal zone (11) to the longitudinal axis (LA) in a transverse direction, is greater than a second distance (r2), from the inner circumference of the cylindrical distal zone (12) to the longitudinal axis (LA) in the transverse direction. The intermediate zone (13) has an inner circumference and an outer circumference tapering between the respective inner and outer circumferences of the proximal zone (11) and the distal zone (12).

Claims (12)

Claims
1. 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, and a top portion (10) comprising a cylindrical proXimal zone (11), a cylindrical distal zone (12) and an intermediate zone (13) arranged and eXtending between the cylindrical proximal zone (11) and the cylindrical distal zone (12), wherein each one of the cylindrical proXimal zone (11) and the cylindrical distal zone (12) has an inner circumference and an outer circumference, respectively, wherein a first distance (r1), from the inner circumference of the cylindrical proximal zone (11) to the longitudinal aXis (LA) in a transverse direction, is greater than a second distance (r2), from the inner circumference of the cylindrical distal zone (12) to the longitudinal aXis (LA) in said transverse direction, and wherein the interrnediate zone (13) has an inner circumference and an outer circumference tapering between the respective inner and outer circumferences of the proXimal zone (11) and the distal zone (12), said cylindrical can further comprising a wall portion (20) and a transition area (15), wherein the transition area (15) is arranged between the cylindrical distal zone (12) of the top portion (10) and the wall portion (20), wherein the wall portion (20) has a smaller thickness than the cylindrical distal zone (12) of 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), characterised in that the wall portion (20) and the transition area (15) each have an inner circumference and an outer circumference, wherein the inner circumference of the wall portion (20) and the transition portion (15) is the same and eXtends perpendicularly from the longitudinal axis (LA) in a transverse direction, and wherein the outer circumference of the cylindrical can (1) tapers towards the wall portion (20) at the transition area (15).
2. The cylindrical can according to claim 1, wherein the cylindrical can (1) has an inner diameter defined by the inner circumference as two times the distance (r1, r2) between the inner circumference and the longitudinal aXis (LA) in the transverse direction, wherein the inner diameter of the cylindrical can (1) at the cylindrical proXimal zone (11) is defined as two times the first distance (r1), and wherein the inner diameter of the cylindrical can (1) at the cylindrical distal zone (12) is defined as two times the second distance (r2).
3. The cy1indrica1 can according to c1aim 1 or 2, wherein the intermediate zone (13) is inclined an angle ot with respect to the longitudinal axis (LA).
4. The cylindrical can according to c1aim 3, wherein ot ranges between 1° and 4°, preferab1y between 2° and 3.5°, more preferab1y between 2.3° and 3.5°, and most preferred 3.3°.
5. The cy1indrica1 can according to c1aim 2 to 4, wherein the cy1indrica1 proximal zone (11) of the top portion (10) has an inner diameter of between 20.75 and 20.90, preferab1y between 20.80 and 20.85 mm.
6. The cy1indrica1 can according to any one of c1aims 2 to 5, wherein the cy1indrica1 dista1 zone (12) of the top portion (10) has an inner diameter of between 20.50 and 20.65 mm, preferab1y between 20.55 and 20.60 mm.
7. The cy1indrica1 can according to any one of the preceding c1aims, wherein the cy1indrica1 proximal zone (11) eXtends in a direction para11e1 to the 1ongitudina1 axis (LA) between 0 and 3.2 mm, preferab1y between 0 and 2.2 mm, and more preferab1y between 0 and 2.7 mm from the opening (2) of the cy1indrica1 can (1).
8. The cy1indrica1 can according to any one of the preceding c1aims, wherein the cy1indrica1 dista1 zone (12) eXtends in a direction para11e1 to the 1ongitudina1 aXis (LA) between 4.2 to 5.2 mm and 6.3 to 7.3 from the opening (2) of the cy1indrica1 can (1).
9. The cy1indrica1 can according to any one of the preceding c1aims, wherein each one of the cy1indrica1 proximal zone (11), the intermediate zone (13) and the cy1indrica1 dista1 zone (12) have the same thickness, wherein the thickness is defined as the cross-sectiona1 distance between the outer circumference and the inner circumference of the respective zone (11, 12, 13) of the top portion (10).
10. The cy1indrica1 can according to any of the preceding c1aims, wherein the cy1indrica1 proXima1 zone (11) faces the opening (2) of the cy1indrica1 can (1) and the cy1indrica1 distazone (12) faces the transition area (15).
11. The cy1indrica1 can according to any of the preceding c1aims, Wherein the cy1indrica1 can (1) further comprises 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), Wherein the bottom portion (30) preferab1y has a thickness of 0.3 mm. 12 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/or the interrnediate zone (13) Which defines a beading zone, Wherein the cy1indrica1 can (1) is crimped at the proximal zone (11) and/or the interrnediate zone (13) Which defines a crimp zone, and Wherein the cap assemb1y is arranged between the beading zone and the crimp zone.
SE2251574A 2022-12-23 2022-12-23 A cylindrical can for secondary cells SE546990C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2251574A SE546990C2 (en) 2022-12-23 2022-12-23 A cylindrical can for secondary cells
US18/392,062 US20240213585A1 (en) 2022-12-23 2023-12-21 Cylindrical can for secondary cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2251574A SE546990C2 (en) 2022-12-23 2022-12-23 A cylindrical can for secondary cells

Publications (2)

Publication Number Publication Date
SE2251574A1 SE2251574A1 (en) 2024-06-24
SE546990C2 true SE546990C2 (en) 2025-03-25

Family

ID=91582963

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2251574A SE546990C2 (en) 2022-12-23 2022-12-23 A cylindrical can for secondary cells

Country Status (2)

Country Link
US (1) US20240213585A1 (en)
SE (1) SE546990C2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09161736A (en) * 1995-12-01 1997-06-20 Kishimoto Akira Battery can and its manufacturing method
JPH1083800A (en) * 1996-09-10 1998-03-31 Kishimoto Akira Battery can and method of manufacturing dry battery using this can
JP2000011966A (en) * 1998-06-17 2000-01-14 Toyo Seikan Kaisha Ltd Battery can
JP2001052656A (en) * 1999-08-12 2001-02-23 Fuji Elelctrochem Co Ltd Assembly method of cylindrical alkaline battery and positive electrode can
JP2012104451A (en) * 2010-11-12 2012-05-31 Fdk Corp Positive electrode can for alkaline battery, 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
KR101862776B1 (en) * 2015-04-08 2018-05-30 주식회사 엘지화학 Secondary Battery Realizing Capacity Enhancement thereof through Maximizing Storage Space of Electrode Assembly And Method for the Same
WO2022240156A1 (en) * 2021-05-14 2022-11-17 삼성에스디아이(주) Secondary battery

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09161736A (en) * 1995-12-01 1997-06-20 Kishimoto Akira Battery can and its manufacturing method
JPH1083800A (en) * 1996-09-10 1998-03-31 Kishimoto Akira Battery can and method of manufacturing dry battery using this can
JP2000011966A (en) * 1998-06-17 2000-01-14 Toyo Seikan Kaisha Ltd Battery can
JP2001052656A (en) * 1999-08-12 2001-02-23 Fuji Elelctrochem Co Ltd Assembly method of cylindrical alkaline battery and positive electrode can
JP2012104451A (en) * 2010-11-12 2012-05-31 Fdk Corp Positive electrode can for alkaline battery, 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
KR101862776B1 (en) * 2015-04-08 2018-05-30 주식회사 엘지화학 Secondary Battery Realizing Capacity Enhancement thereof through Maximizing Storage Space of Electrode Assembly And Method for the Same
WO2022240156A1 (en) * 2021-05-14 2022-11-17 삼성에스디아이(주) Secondary battery

Also Published As

Publication number Publication date
US20240213585A1 (en) 2024-06-27
SE2251574A1 (en) 2024-06-24

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