SE546950C2 - Apparatus adapted for unwinding of an electrode assembly - Google Patents

Apparatus adapted for unwinding of an electrode assembly

Info

Publication number
SE546950C2
SE546950C2 SE2350406A SE2350406A SE546950C2 SE 546950 C2 SE546950 C2 SE 546950C2 SE 2350406 A SE2350406 A SE 2350406A SE 2350406 A SE2350406 A SE 2350406A SE 546950 C2 SE546950 C2 SE 546950C2
Authority
SE
Sweden
Prior art keywords
electrode assembly
holder
layer
layers
electrode
Prior art date
Application number
SE2350406A
Other languages
Swedish (sv)
Other versions
SE2350406A1 (en
Inventor
Aamer Siddiqui
Original Assignee
Scania Cv 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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE2350406A priority Critical patent/SE546950C2/en
Priority to PCT/SE2024/050236 priority patent/WO2024210785A1/en
Priority to EP24713018.0A priority patent/EP4688627A1/en
Priority to CN202480019325.6A priority patent/CN120957934A/en
Publication of SE2350406A1 publication Critical patent/SE2350406A1/en
Publication of SE546950C2 publication Critical patent/SE546950C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B65H18/103—Reel-to-reel type web winding and unwinding mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/1806—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in reel-to-reel type web winding and unwinding mechanism, e.g. mechanism acting on web-roll spindle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
    • 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
    • H01M10/0404—Machines for assembling batteries
    • H01M10/0409—Machines for assembling batteries for cells with wound 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285—Testing apparatus
    • 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
    • H01M10/54—Reclaiming serviceable parts of waste accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • H01M4/0435—Rolling or calendering
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/52—Reclaiming serviceable parts of waste cells or batteries, e.g. recycling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/42—Cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/72—Fuel cell manufacture
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
    • G01N2021/8918—Metal
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

An apparatus (20) adapted for unwinding of an electrode assembly (1) and separation of layers (2, 3, 4, 5) of the electrode assembly (1). The apparatus (20) comprises a first holder (24) configured to support a wound electrode assembly (1, 6, 8) from which one or more layers (2, 3, 4, 5) are to be separated. The apparatus further comprises a second and a third holder (26, 28), each configured to create a pulling force in a respective layer (2, 4) of the electrode assembly (1) to thereby unwind the electrode assembly from the first holder (24) and to wind up said respective layer (2, 4). The apparatus also comprises a plurality of rotatably arranged separation rollers (36, 37, 38, 39) configured to separate adjacent layers of the electrode assembly from each other as a result of the pulling forces created by the second and third holders (26, 28). A method for separating layers of an electrode assembly using the apparatus, and a method for post-mortem analysis are also described.

Claims (9)

Claims
1. An apparatus (20) adapted for unwinding of an electrode assembly (1) and for separation of one or more layers (2, 3, 4, 5) of the electrode assembly (1), the apparatus (20) comprising: a rotatably arranged first holder (24) configured to support a wound electrode assembly (1, 6, 8) from which one or more layers (2, 3, 4, 5) are to be separated; a rotatably driven second holder (26) and a rotatably driven third holder (28), each of the second holder (26) and the third holder (28) being configured to create a pulling force in a respective layer (2, 4) of the electrode assembly (1) to thereby unwind the electrode assembly (1) from the first holder (24) and to wind up said respective layer (2, 4) when separated from another layer of the electrode assembly (1); a plurality of rotatably arranged separation rollers (36, 37, 38, 39) configured to separate adjacent layers of the electrode assembly (1) from each other as a result of the pulling forces created by the second and third holders (26, 28)
2. The apparatus (20) according to claim 1, further comprising: a rotatably driven fourth holder (30) configured to create a tensioning or pulling force in a first separator layer (3) of the electrode assembly (1) during unwinding of the electrode assembly (1) from the first holder (24) and to wind up said first separator layer (3) when separated from adjacent layers of the electrode assembly (1); and optionally a rotatably driven fifth holder (32) configured to create a tensioning or pulling force in a second separator layer (5) of the electrode assembly (1) or an insulating layer during unwinding of the electrode assembly (1) from the first holder (24).
3. The apparatus (20) according to any one of claims 1 or 2, wherein the first holder (24) is a non-driven holder.
4. The apparatus (20) according to any one of the preceding claims, wherein each one of the rotatably driven second and third holders (26, 28) is driven by a respective motor (27, 29).
5. The apparatus (20 according to any one of the preceding claims, wherein each of the plurality of separation rollers (36, 37, 38, 39) is a non-driven separation roller.
6. The apparatus (20) according to any one of the preceding claims, wherein each of the second holder (26) and the third holder (28) comprises two elongated members (51, 52, 61, 62) arranged in parallel and on opposing sides of an axis of rotation (C, D) of the holder, said two elongated members (51, 52, 61, 62) configured to support an electrode layer (2, 4) of the electrode assembly (1) during wind up thereon.
7. The apparatus (20) according to claim 6, wherein the two elongated members (51, 52, 61, 62) are arranged at an adjustable distance from each other. fiéšffyššgThe apparatus (20) according to any one of the preceding claims, further comprising a plurality of pin rollers (43-50) configured to align and guide the layers (2, 3, 4, 5) of the electrode assembly (1), when separated from the other layers of the electrode assembly (1), toward the respective holders. “wWThe apparatus (20) according to any one of the preceding claims, wherein each of the first holder (24), the second holder (26) and the third holder (28) is detachably mounted to a support structure (21) of the apparatus (20).
8. E.__________The apparatus (20) according to any one of the preceding claims, further comprising a removably arranged image capturing device (35) configured to capture an image of at least one surface of a layer (2, 4) separated from the electrode assembly (1). '“= Iš..__________The apparatus (20) according to any one of the preceding claims, further comprising a control device configured to control rotational speed of each of the second and third holders (26, 28). “a _________ __A method for separating one or more layers (2, 3, 4, 5) from a wound electrode assembly (1, 6, 8) using the apparatus (20) according to any one of the preceding claims, the method comprising: arranging the wound electrode assembly (6, 8) on the first holder (24), inserting an unwound portion of the electrode assembly (1) between a first pair of the separation rollers (36, 37, 38, 39) and guiding two adjacent layers of the unwound portion of the electrode assembly (1) over a respective separation roller (36, 37) of the first pair of separation rollers (36, 37), attaching or fastening an end portion of each of said adjacent layers of the unwound portion of the electrode assembly (1) to a respective rotatably driven holder of the second and third holders (26, 28), rotating each of the second and third holders (26, 28) so as to wind the layer whose end portion is attached or fastened thereto onto the holder, thereby creating a pulling force 10 in said layer causing the electrode assembly (1) to unwind from the first holder (24) and said layer to be separated from an adjacent layer of the electrode assembly when passing over the separation rollers (36, 37). _A method for post-mortem analysis of an electrode layer (2, 4) of an electrode t t t t t t15 assembly (1) of a battery, the method comprising: se» apparatus
9. m S u m IV b m e S S a e d o r t c k e e h t m o r f m., t t t separating the electrode layer (2, . .tm :__ :.._.\.t.t \_._'»t'.t§.\ _.\t\.\ . t. . .\_. Wt z. .__.t(tt šäïzrtëfi-:kïty- t Išvša! t-všzšm: wifi: S) :ïz Mk: ššyczë capturing an image of at least one of the surfaces of the electrode layer (2, 4) using an image capturing device (35). _____ __The method according to claim “ Qi, further comprising performing digital image analysis of the captured image.
SE2350406A 2023-04-06 2023-04-06 Apparatus adapted for unwinding of an electrode assembly SE546950C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE2350406A SE546950C2 (en) 2023-04-06 2023-04-06 Apparatus adapted for unwinding of an electrode assembly
PCT/SE2024/050236 WO2024210785A1 (en) 2023-04-06 2024-03-14 Apparatus adapted for unwinding of an electrode assembly
EP24713018.0A EP4688627A1 (en) 2023-04-06 2024-03-14 Apparatus adapted for unwinding of an electrode assembly
CN202480019325.6A CN120957934A (en) 2023-04-06 2024-03-14 Equipment suitable for unwinding electrode assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2350406A SE546950C2 (en) 2023-04-06 2023-04-06 Apparatus adapted for unwinding of an electrode assembly

Publications (2)

Publication Number Publication Date
SE2350406A1 SE2350406A1 (en) 2024-10-07
SE546950C2 true SE546950C2 (en) 2025-03-18

Family

ID=90368853

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2350406A SE546950C2 (en) 2023-04-06 2023-04-06 Apparatus adapted for unwinding of an electrode assembly

Country Status (4)

Country Link
EP (1) EP4688627A1 (en)
CN (1) CN120957934A (en)
SE (1) SE546950C2 (en)
WO (1) WO2024210785A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007165136A (en) * 2005-12-14 2007-06-28 Hitachi Vehicle Energy Ltd Electrode group disassembly device
JP2018113199A (en) * 2017-01-13 2018-07-19 Ckd株式会社 Inspection apparatus and winding device
US20230068999A1 (en) * 2021-08-27 2023-03-02 Kabushiki Kaisha Toshiba Inspection system and inspection method for secondary battery

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11557813B2 (en) 2021-04-21 2023-01-17 Icreate Limited System and method for separating battery components

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007165136A (en) * 2005-12-14 2007-06-28 Hitachi Vehicle Energy Ltd Electrode group disassembly device
JP2018113199A (en) * 2017-01-13 2018-07-19 Ckd株式会社 Inspection apparatus and winding device
US20230068999A1 (en) * 2021-08-27 2023-03-02 Kabushiki Kaisha Toshiba Inspection system and inspection method for secondary battery

Also Published As

Publication number Publication date
WO2024210785A1 (en) 2024-10-10
EP4688627A1 (en) 2026-02-11
CN120957934A (en) 2025-11-14
SE2350406A1 (en) 2024-10-07

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