WO2008139727A1 - 積層多孔性フィルム及び電池用セパレータ - Google Patents

積層多孔性フィルム及び電池用セパレータ Download PDF

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Publication number
WO2008139727A1
WO2008139727A1 PCT/JP2008/001151 JP2008001151W WO2008139727A1 WO 2008139727 A1 WO2008139727 A1 WO 2008139727A1 JP 2008001151 W JP2008001151 W JP 2008001151W WO 2008139727 A1 WO2008139727 A1 WO 2008139727A1
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WO
WIPO (PCT)
Prior art keywords
heating
air permeability
layer
porous film
film
Prior art date
Application number
PCT/JP2008/001151
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English (en)
French (fr)
Inventor
Yasushi Usami
Takeyoshi Yamada
Jun Takagi
Original Assignee
Mitsubishi Plastics, Inc.
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 Mitsubishi Plastics, Inc. filed Critical Mitsubishi Plastics, Inc.
Priority to KR1020097017173A priority Critical patent/KR100927570B1/ko
Priority to US12/598,903 priority patent/US8426054B2/en
Priority to JP2008544702A priority patent/JP4299365B2/ja
Priority to EP20080751675 priority patent/EP2145757A4/en
Publication of WO2008139727A1 publication Critical patent/WO2008139727A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/285—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/286—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polysulphones; polysulfides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
    • D01D5/0084—Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it, e.g. coating of prostheses
    • 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
    • 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
    • H01M50/44—Fibrous material
    • 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
    • H01M50/454—Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • 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
    • H01M50/491—Porosity
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition

Abstract

　確実に孔が閉塞するシャットダウン（ＳＤ）特性と、高いブレイクダウン（ＢＤ）特性とを併せ持つ積層多孔性フィルムを提案するため、膜厚が１０μｍ以上である不織布以外の多孔膜層（Ａ層）と繊維径が１μｍ以下である不織布層（Ｂ層）の少なくとも２層から構成され、かつ所定の温度に加熱したオーブン内にフィルムを所定時間置いて加熱し、加熱する前のフィルムの透気度（ＡＰ２）と加熱した後のフィルムの透気度（ＡＰ１）とを測定する加熱試験において、１５０°C～２００°Cの加熱温度で３分間加熱した時の透気度（ＡＰ１）と加熱前の透気度（ＡＰ２）との比の値（ＡＰ１／ＡＰ２）が１５０°C～２００°Cの何れの加熱温度でも１０以上となることを特徴とする積層多孔性フィルムを提案する。  
PCT/JP2008/001151 2007-05-07 2008-05-07 積層多孔性フィルム及び電池用セパレータ WO2008139727A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020097017173A KR100927570B1 (ko) 2007-05-07 2008-05-07 적층 다공성 필름 및 전지용 세퍼레이터
US12/598,903 US8426054B2 (en) 2007-05-07 2008-05-07 Laminated porous film and separator for cell
JP2008544702A JP4299365B2 (ja) 2007-05-07 2008-05-07 積層多孔性フィルム及び電池用セパレータ
EP20080751675 EP2145757A4 (en) 2007-05-07 2008-05-07 POROUS COMPOSITE FILM AND SEPARATOR FOR ONE CELL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-122026 2007-05-07
JP2007122026 2007-05-07

Publications (1)

Publication Number Publication Date
WO2008139727A1 true WO2008139727A1 (ja) 2008-11-20

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PCT/JP2008/001151 WO2008139727A1 (ja) 2007-05-07 2008-05-07 積層多孔性フィルム及び電池用セパレータ

Country Status (5)

Country Link
US (1) US8426054B2 (ja)
EP (1) EP2145757A4 (ja)
JP (1) JP4299365B2 (ja)
KR (1) KR100927570B1 (ja)
WO (1) WO2008139727A1 (ja)

Cited By (12)

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US20100196750A1 (en) * 2009-02-03 2010-08-05 Sony Corporation Separator and battery
CN101923957A (zh) * 2009-06-11 2010-12-22 株式会社巴川制纸所 蓄电装置用隔离物
JP2010287697A (ja) * 2009-06-11 2010-12-24 Tomoegawa Paper Co Ltd 蓄電デバイス用セパレータ
JP2011207149A (ja) * 2010-03-30 2011-10-20 Ube Industries Ltd 複合多孔質フィルムの製造方法
JP2012045815A (ja) * 2010-08-26 2012-03-08 Asahi Kasei Fibers Corp 複合膜
JP2013196879A (ja) * 2012-03-19 2013-09-30 Japan Vilene Co Ltd 電気化学素子用セパレータ及び電気化学素子
JP2013539186A (ja) * 2010-09-30 2013-10-17 アプライド マテリアルズ インコーポレイテッド リチウムイオン電池向けの一体型セパレータの電界紡糸
JP2014022093A (ja) * 2012-07-13 2014-02-03 Mitsubishi Paper Mills Ltd リチウムイオン電池用セパレータ
JP2017501555A (ja) * 2013-11-05 2017-01-12 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーＥ．Ｉ．Ｄｕ Ｐｏｎｔ Ｄｅ Ｎｅｍｏｕｒｓ Ａｎｄ Ｃｏｍｐａｎｙ 持続的シャットダウンが可能な電気化学セル用複合セパレータ
JP2017185643A (ja) * 2016-04-01 2017-10-12 富士フイルム株式会社 複合膜、非水二次電池用セパレータおよび非水二次電池
JP2020007445A (ja) * 2018-07-06 2020-01-16 三井化学東セロ株式会社 食品用包装フィルムおよび食品用包装体
JP2020007443A (ja) * 2018-07-06 2020-01-16 三井化学東セロ株式会社 食品用包装フィルムおよび食品用包装体

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EP2276336A4 (en) * 2008-04-25 2012-04-18 Univ Akron METHOD BASED ON FILM CUTTING AND FOR MANUFACTURING FUNCTIONAL FILM ENHANCED BY NANOFIBERS
JP4838910B2 (ja) 2009-06-19 2011-12-14 三菱樹脂株式会社 多孔性ポリプロピレンフィルム
WO2011021668A1 (ja) * 2009-08-19 2011-02-24 旭化成せんい株式会社 固体電解コンデンサ
EP2586611B1 (en) * 2010-06-25 2018-10-03 Toray Industries, Inc. Composite porous membrane, method for producing composite porous membrane and battery separator using same
US9337461B2 (en) * 2010-09-02 2016-05-10 Toray Battery Separator Film Co., Ltd. Composite porous membrane and method of producing the same
WO2012043718A1 (ja) * 2010-10-01 2012-04-05 三菱樹脂株式会社 積層多孔性フィルム、電池用セパレータ及び電池
JP6060079B2 (ja) 2011-09-09 2017-01-11 旭化成株式会社 ポリケトン多孔膜
KR20140138806A (ko) 2012-03-02 2014-12-04 코넬 유니버시티 나노섬유들을 포함하는 리튬 이온 배터리들
US9328294B2 (en) 2012-09-04 2016-05-03 Uop Llc Process and apparatus for extracting sulfur compounds in a hydrocarbon stream
KR101448287B1 (ko) * 2013-02-20 2014-10-22 주식회사 케이엠 통기성과 항균성이 향상된 의료용 시트의 제조방법
US10333176B2 (en) 2013-08-12 2019-06-25 The University Of Akron Polymer electrolyte membranes for rechargeable batteries
JP6659214B2 (ja) * 2014-10-17 2020-03-04 トヨタ自動車株式会社 電池用セパレータ、積層セパレータ、リチウムイオン二次電池および組電池
JP6898917B2 (ja) 2015-04-08 2021-07-07 ジェレーナ ストジャディノヴィック 織布ウェブ又は不織布ウェブ
TWI590512B (zh) * 2015-10-26 2017-07-01 財團法人工業技術研究院 隔離膜與鋰二次電池的電極模組
CN108498868B (zh) * 2018-04-03 2020-09-15 北京大学口腔医学院 具有细胞外基质电学拓扑特征的带电复合膜及其制备方法
DE102018205994A1 (de) * 2018-04-19 2019-10-24 Bayerische Motoren Werke Aktiengesellschaft Hochstromseparator

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JP2883726B2 (ja) 1990-11-14 1999-04-19 日東電工株式会社 電池用セパレータの製造法
JP3050021B2 (ja) 1993-05-11 2000-06-05 三菱化学株式会社 バッテリーセパレーター及びそれを用いたリチウム電池
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JP2005019026A (ja) 2003-06-23 2005-01-20 Japan Vilene Co Ltd リチウム二次電池用セパレータ及びリチウム二次電池
JP2006092829A (ja) 2004-09-22 2006-04-06 Teijin Ltd リチウムイオン二次電池用セパレータおよびその製造方法とリチウムイオン二次電池
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JP7321682B2 (ja) 2018-07-06 2023-08-07 三井化学東セロ株式会社 食品用包装フィルムおよび食品用包装体

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JP4299365B2 (ja) 2009-07-22
KR20090096754A (ko) 2009-09-14
EP2145757A1 (en) 2010-01-20
US8426054B2 (en) 2013-04-23
JPWO2008139727A1 (ja) 2010-07-29
KR100927570B1 (ko) 2009-11-23
US20100151311A1 (en) 2010-06-17

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