WO2021015269A1 - Membrane de polyoléfine microporeuse et séparateur pour batteries secondaires à électrolyte non aqueux - Google Patents

Membrane de polyoléfine microporeuse et séparateur pour batteries secondaires à électrolyte non aqueux Download PDF

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Publication number
WO2021015269A1
WO2021015269A1 PCT/JP2020/028547 JP2020028547W WO2021015269A1 WO 2021015269 A1 WO2021015269 A1 WO 2021015269A1 JP 2020028547 W JP2020028547 W JP 2020028547W WO 2021015269 A1 WO2021015269 A1 WO 2021015269A1
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WO
WIPO (PCT)
Prior art keywords
area
less
polyolefin
unopened
ratio
Prior art date
Application number
PCT/JP2020/028547
Other languages
English (en)
Japanese (ja)
Inventor
豊田　直樹
光隆 坂本
寛子 田中
龍太 中嶋
聡士 藤原
石原　毅
大倉　正寿
渡辺　充
優奈 梶原
Original Assignee
東レ株式会社
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 東レ株式会社 filed Critical 東レ株式会社
Priority to KR1020217032254A priority Critical patent/KR20220041777A/ko
Publication of WO2021015269A1 publication Critical patent/WO2021015269A1/fr

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    • 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
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/417—Polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/26—Polyalkenes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/52—Separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/02—Diaphragms; Separators
    • 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
    • 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
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • 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
    • H01M50/463—Separators, membranes or diaphragms characterised by their shape
    • 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
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0239—Organic resins; Organic polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0025—Organic electrolyte
    • 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
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

La présente invention concerne une membrane de polyoléfine microporeuse qui présente un taux de retrait inférieur à 10 % dans le sens MD à 105 °C/8h et un diamètre de fibrilles de 10 nm à 50 nm, dans laquelle si un champ de vision rectangulaire de 11,7 μm × 9,4 μm d'une image d'observation par MEB de surface telle qu'obtenue par l'observation avec un microscope électronique à balayage (MEB) est divisée en morceaux de 0,5 µm × 0,5 µm, la somme des surfaces de résine dans les pièces satisfaisant à R2 ≥ R1, à savoir (parties a non ouvrable dans la surface) est inférieure ou égale à 20 μm2 dans la surface de 11,7 μm × 4 μm de l'image d'observation par MEB de surface.
PCT/JP2020/028547 2019-07-25 2020-07-22 Membrane de polyoléfine microporeuse et séparateur pour batteries secondaires à électrolyte non aqueux WO2021015269A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020217032254A KR20220041777A (ko) 2019-07-25 2020-07-22 폴리올레핀 미다공막, 및 비수전해액 이차전지용 세퍼레이터

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2019137309 2019-07-25
JP2019-137308 2019-07-25
JP2019137308 2019-07-25
JP2019-137309 2019-07-25

Publications (1)

Publication Number Publication Date
WO2021015269A1 true WO2021015269A1 (fr) 2021-01-28

Family

ID=74194263

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/028547 WO2021015269A1 (fr) 2019-07-25 2020-07-22 Membrane de polyoléfine microporeuse et séparateur pour batteries secondaires à électrolyte non aqueux

Country Status (2)

Country Link
KR (1) KR20220041777A (fr)
WO (1) WO2021015269A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023053930A1 (fr) * 2021-09-29 2023-04-06 東レ株式会社 Film de polyoléfine microporeux, séparateur pour batteries et batterie secondaire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1192587A (ja) * 1997-09-17 1999-04-06 Tonen Kagaku Kk ポリオレフィン微多孔膜の製造方法
JPH11322988A (ja) * 1998-05-18 1999-11-26 Nitto Denko Corp 多孔質フィルム並びにその製造と用途
JP2008218085A (ja) * 2007-03-01 2008-09-18 Asahi Kasei Chemicals Corp ポリオレフィン微多孔膜
JP2016081621A (ja) * 2014-10-14 2016-05-16 Tdk株式会社 セパレータ及びこれを用いたリチウムイオン二次電池
JP2018147885A (ja) * 2017-03-03 2018-09-20 住友化学株式会社 非水電解液二次電池用セパレータ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4804079B2 (ja) 2004-09-30 2011-10-26 旭化成イーマテリアルズ株式会社 ポリオレフィン製微多孔膜
JP2012048987A (ja) 2010-08-26 2012-03-08 Teijin Ltd ポリオレフィン微多孔膜、非水系二次電池用セパレータ、及び非水系二次電池
EP2833439B1 (fr) 2012-03-28 2017-09-06 Asahi Kasei Kabushiki Kaisha Film poreux et film poreux multicouche
JP2014015697A (ja) 2012-07-11 2014-01-30 Teijin Ltd 微細繊維構造体
JP5976947B2 (ja) 2014-08-29 2016-08-24 住友化学株式会社 多孔質層、多孔質層を積層してなるセパレータ、および多孔質層またはセパレータを含む非水電解液二次電池
JP6496762B2 (ja) 2017-03-03 2019-04-03 住友化学株式会社 非水電解液二次電池用セパレータ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1192587A (ja) * 1997-09-17 1999-04-06 Tonen Kagaku Kk ポリオレフィン微多孔膜の製造方法
JPH11322988A (ja) * 1998-05-18 1999-11-26 Nitto Denko Corp 多孔質フィルム並びにその製造と用途
JP2008218085A (ja) * 2007-03-01 2008-09-18 Asahi Kasei Chemicals Corp ポリオレフィン微多孔膜
JP2016081621A (ja) * 2014-10-14 2016-05-16 Tdk株式会社 セパレータ及びこれを用いたリチウムイオン二次電池
JP2018147885A (ja) * 2017-03-03 2018-09-20 住友化学株式会社 非水電解液二次電池用セパレータ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023053930A1 (fr) * 2021-09-29 2023-04-06 東レ株式会社 Film de polyoléfine microporeux, séparateur pour batteries et batterie secondaire

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Publication number Publication date
KR20220041777A (ko) 2022-04-01

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