MY174237A - Non-aqueous electrolyte secondary battery - Google Patents

Non-aqueous electrolyte secondary battery

Info

Publication number
MY174237A
MY174237A MYPI2019000661A MYPI2019000661A MY174237A MY 174237 A MY174237 A MY 174237A MY PI2019000661 A MYPI2019000661 A MY PI2019000661A MY PI2019000661 A MYPI2019000661 A MY PI2019000661A MY 174237 A MY174237 A MY 174237A
Authority
MY
Malaysia
Prior art keywords
aqueous electrolyte
electrolyte secondary
secondary battery
capacity
rated capacity
Prior art date
Application number
MYPI2019000661A
Inventor
Masato Ono
Ikuma Matsuzaki
Keisuke Matsumoto
Original Assignee
Envision Aesc Japan Ltd
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 Envision Aesc Japan Ltd filed Critical Envision Aesc Japan Ltd
Publication of MY174237A publication Critical patent/MY174237A/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/411Organic material
    • H01M50/414Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/417Polyolefins
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/102Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105Pouches or flexible bags
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/056Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0561Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
    • H01M10/0563Liquid materials, e.g. for Li-SOCl2 cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/131Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/133Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/116Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117Inorganic material
    • H01M50/119Metals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/116Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/116Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H01M50/126Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/411Organic material
    • H01M50/414Synthetic resins, e.g. thermoplastics or thermosetting resins
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/431Inorganic material
    • H01M50/434Ceramics
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/449Separators, membranes or diaphragms characterised by the material having a layered structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/449Separators, membranes or diaphragms characterised by the material having a layered structure
    • H01M50/457Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H01M50/491Porosity
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/572Means for preventing undesired use or discharge
    • H01M50/584Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/056Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M2004/021Physical characteristics, e.g. porosity, surface area
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M2010/4292Aspects relating to capacity ratio of electrodes/electrolyte or anode/cathode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/463Separators, membranes or diaphragms characterised by their shape
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Secondary Cells (AREA)
  • Cell Separators (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Laminated Bodies (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

Provided is a means capable of improving battery cycle durability in a non-aqueous electrolyte secondary battery having a capacity and a size which are assumed to increase the capacity and capable of suppressing occurrence of internal short-circuit. Disclosed is a non-aqueous electrolyte secondary battery including a power generating element , which includes a positive electrode , a negative electrode, and a separator including a resin film having a three-layer structure , a ratio of a rated capacity to a pore volume of a positive electrode active material layer being 2.08 Ah/cc or more, a ratio of a battery area to a rated capacity being 7 cm2/Ah or more, and a rated capacity being 50 Ah or more, in which a value R of the separator represented by the following Formula 1 is 62 to 110: R = Tortuosity factor x Thickness [?m] Porosity (Formula 1) (provided that , the average pore diameter is 0.10 to 0.18 ?m, the porosity is 0.43 to 0.65, the air permeability is 140 to 305 sec/100 ml, and the thickness is 11 to 25 ?m).
MYPI2019000661A 2016-08-10 2016-08-10 Non-aqueous electrolyte secondary battery MY174237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/073658 WO2018029832A1 (en) 2016-08-10 2016-08-10 Nonaqueous electrolyte secondary battery

Publications (1)

Publication Number Publication Date
MY174237A true MY174237A (en) 2020-04-01

Family

ID=61163205

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2019000661A MY174237A (en) 2016-08-10 2016-08-10 Non-aqueous electrolyte secondary battery

Country Status (7)

Country Link
US (1) US10468651B2 (en)
EP (1) EP3499627B1 (en)
JP (1) JP6516071B2 (en)
KR (1) KR102077434B1 (en)
CN (1) CN109565072B (en)
MY (1) MY174237A (en)
WO (1) WO2018029832A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6668509B2 (en) * 2016-12-26 2020-03-18 株式会社東芝 Non-aqueous electrolyte battery and battery pack
JP7637918B2 (en) * 2020-03-30 2025-03-03 パナソニックIpマネジメント株式会社 Manufacturing method of stacked battery and stacked battery
CN115939306B (en) * 2022-09-16 2024-09-06 宁德时代新能源科技股份有限公司 Negative electrode sheets, electrode assemblies, battery cells, batteries and electrical equipment
DE202023003118U1 (en) * 2022-10-14 2026-02-24 Lg Energy Solution, Ltd. Secondary battery
KR20240163723A (en) * 2022-10-14 2024-11-19 컨템포러리 엠퍼렉스 테크놀로지 (홍콩) 리미티드 Battery cells, batteries and electrical appliances
CN116435713B (en) * 2023-04-26 2026-02-06 珠海冠宇电池股份有限公司 Diaphragm and battery comprising same
JP2025087170A (en) * 2023-11-29 2025-06-10 トヨタ自動車株式会社 Lithium-ion battery

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2926288B2 (en) * 1993-01-07 1999-07-28 日本電池株式会社 Nickel-cadmium battery
JP4557920B2 (en) 2006-03-30 2010-10-06 株式会社東芝 Non-aqueous electrolyte battery
WO2007116672A1 (en) 2006-03-30 2007-10-18 Asahi Kasei Chemicals Corporation Polyolefin microporous film
JP5508674B2 (en) * 2007-01-04 2014-06-04 株式会社東芝 Non-aqueous electrolyte battery, battery pack and automobile
CN106395918A (en) 2009-10-22 2017-02-15 户田工业株式会社 Nickel-cobalt-manganese compound particle powder and method for producing same, lithium composite oxide particle powder and method for producing same, and nonaqueous electrolyte secondary battery
JP5492287B2 (en) * 2010-03-04 2014-05-14 株式会社東芝 Non-aqueous electrolyte battery, battery pack and automobile
JP4981195B2 (en) * 2010-09-30 2012-07-18 パナソニック株式会社 Nonaqueous electrolyte secondary battery separator and nonaqueous electrolyte secondary battery using the same
JP2012174433A (en) * 2011-02-18 2012-09-10 Toshiba Corp Electrochemical device and outer package therefor
JP6120828B2 (en) 2012-03-28 2017-04-26 旭化成株式会社 Porous membrane and multilayer porous membrane
PL2963083T3 (en) * 2013-02-27 2018-10-31 Toray Industries, Inc. Porous polyolefin film, battery separator obtained using same, and processes for producing these
KR101702798B1 (en) * 2013-03-15 2017-02-06 닛산 지도우샤 가부시키가이샤 Non-aqueous electrolyte secondary battery cathode, and non-aqueous electrolyte secondary battery using same
WO2014142284A1 (en) * 2013-03-15 2014-09-18 日産自動車株式会社 Non-aqueous electrolyte secondary battery cathode, and non-aqueous electrolyte secondary battery using same
CN105074997B (en) * 2013-03-26 2018-01-02 日产自动车株式会社 Rechargeable nonaqueous electrolytic battery
WO2014157415A1 (en) * 2013-03-26 2014-10-02 日産自動車株式会社 Non-aqueous electrolyte secondary battery
JP2015079749A (en) * 2013-09-10 2015-04-23 積水化学工業株式会社 Microporous film, method for manufacturing microporous film, nonaqueous electrolyte battery separator, and nonaqueous electrolyte battery
EP3363627B1 (en) * 2014-03-26 2019-11-13 Toray Industries, Inc. Multi-layer polyolefin porous membrane, and a battery separator using same

Also Published As

Publication number Publication date
EP3499627A4 (en) 2019-07-31
US20190173070A1 (en) 2019-06-06
CN109565072A (en) 2019-04-02
CN109565072B (en) 2020-01-14
EP3499627A1 (en) 2019-06-19
US10468651B2 (en) 2019-11-05
JP6516071B2 (en) 2019-05-22
WO2018029832A1 (en) 2018-02-15
KR20190025009A (en) 2019-03-08
EP3499627B1 (en) 2021-01-13
KR102077434B1 (en) 2020-02-13
JPWO2018029832A1 (en) 2019-06-06

Similar Documents

Publication Publication Date Title
MY174237A (en) Non-aqueous electrolyte secondary battery
PH12017500970B1 (en) Single pouch battery cells and methods of manufacture
WO2019099642A3 (en) Electrode assembly, secondary battery, and method of manufacture
EP4053987A3 (en) Lithium ion battery separator
EP4496030A3 (en) Multi-layer negative electrode comprising natural graphite and artificial graphite and lithium secondary battery comprising the same
JP2008300300A5 (en)
IN2014DN07087A (en)
WO2012002646A3 (en) Negative electrode for a cable-type secondary battery and cable-type secondary battery having same
WO2013009078A3 (en) High-energy lithium secondary battery having improved energy density characteristics
EP3093913A3 (en) Solid electrolyte battery, electrode assembly, composite solid electrolyte, and method for producing solid electrolyte battery
EP2079120A3 (en) Electrode Assembly and Lithium Secondary Battery having the same
EP2584628A3 (en) Lithium secondary battery
EP4246702A3 (en) Improved multilayer microporous separators for lithium ion secondary batteries and related methods
EP3073555A3 (en) Nonaqueous electrolyte secondary battery
WO2009103082A3 (en) Lamination configurations for battery applications using pvdf highly porous film
EA201300319A1 (en) SUPERCONDENSATOR WITH HIGH SPECIFIC CAPACITY AND ENERGY DENSITY AND ITS CONSTRUCTION
EP2833459A3 (en) Secondary battery
EP2367221A3 (en) Nonaqueous electrolyte secondary battery
WO2020117060A3 (en) Battery cells comprising elastic compressible functional layers and manufacturing process
EP3675263A3 (en) All-solid battery
JP2018147885A5 (en)
CN205828579U (en) A winding lithium ion battery
DE602005022065D1 (en) LITHIUM BATTERY WITH A POLYMER PARATOR
JP2014222570A5 (en)
EP4415107A3 (en) Secondary battery separator having no separator substrate