JP2018147692A5 - - Google Patents

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Publication number
JP2018147692A5
JP2018147692A5 JP2017041096A JP2017041096A JP2018147692A5 JP 2018147692 A5 JP2018147692 A5 JP 2018147692A5 JP 2017041096 A JP2017041096 A JP 2017041096A JP 2017041096 A JP2017041096 A JP 2017041096A JP 2018147692 A5 JP2018147692 A5 JP 2018147692A5
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JP
Japan
Prior art keywords
secondary battery
electrolyte secondary
separator
aqueous electrolyte
attenuation rate
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JP2017041096A
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English (en)
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JP2018147692A (ja
JP6463396B2 (ja
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Priority claimed from JP2017041096A external-priority patent/JP6463396B2/ja
Priority to JP2017041096A priority Critical patent/JP6463396B2/ja
Application filed filed Critical
Priority to KR1020180025254A priority patent/KR101909415B1/ko
Priority to CN201810175515.3A priority patent/CN108539104B/zh
Priority to US15/910,658 priority patent/US20180254460A1/en
Publication of JP2018147692A publication Critical patent/JP2018147692A/ja
Priority to KR1020180118633A priority patent/KR20180114526A/ko
Publication of JP2018147692A5 publication Critical patent/JP2018147692A5/ja
Publication of JP6463396B2 publication Critical patent/JP6463396B2/ja
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Claims (5)

  1. ポリオレフィン多孔質フィルムを含む非水電解液二次電池用セパレータであって、
    電解液中に浸漬された非水電解液二次電池用セパレータの超音波減衰率曲線における領域IIIの接線の傾きの大きさが3.5mV/s以上14mV/s以下である非水電解液二次電池用セパレータ。
    (ここで、前記領域IIIとは、電解液中に浸漬された非水電解液二次電池用セパレータの、2MHzの超音波に対する超音波減衰率の時間変化を示す超音波減衰率曲線において、第2の変曲点以降の領域を示す。)
  2. 請求項1に記載の非水電解液二次電池用セパレータと絶縁性多孔質層とを備える非水電解液二次電池用積層セパレータ。
  3. 前記絶縁性多孔質層がポリアミド系樹脂を含む、請求項2に記載の非水電解液二次電池用積層セパレータ。
  4. 正極と、請求項1に記載の非水電解液二次電池用セパレータ、または、請求項2もしくは3に記載の非水電解液二次電池用積層セパレータと、負極とがこの順で配置されてなる非水電解液二次電池用部材。
  5. 請求項1に記載の非水電解液二次電池用セパレータ、または、請求項2もしくは3に記載の非水電解液二次電池用積層セパレータを備える非水電解液二次電池。
JP2017041096A 2017-03-03 2017-03-03 非水電解液二次電池用セパレータ Active JP6463396B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2017041096A JP6463396B2 (ja) 2017-03-03 2017-03-03 非水電解液二次電池用セパレータ
KR1020180025254A KR101909415B1 (ko) 2017-03-03 2018-03-02 비수 전해액 이차 전지용 세퍼레이터
CN201810175515.3A CN108539104B (zh) 2017-03-03 2018-03-02 非水电解液二次电池用间隔件
US15/910,658 US20180254460A1 (en) 2017-03-03 2018-03-02 Nonaqueous electrolyte secondary battery separator
KR1020180118633A KR20180114526A (ko) 2017-03-03 2018-10-05 비수 전해액 이차 전지용 세퍼레이터

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017041096A JP6463396B2 (ja) 2017-03-03 2017-03-03 非水電解液二次電池用セパレータ

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2018247595A Division JP2019050226A (ja) 2018-12-28 2018-12-28 非水電解液二次電池用セパレータ

Publications (3)

Publication Number Publication Date
JP2018147692A JP2018147692A (ja) 2018-09-20
JP2018147692A5 true JP2018147692A5 (ja) 2018-11-29
JP6463396B2 JP6463396B2 (ja) 2019-01-30

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ID=63355806

Family Applications (1)

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JP2017041096A Active JP6463396B2 (ja) 2017-03-03 2017-03-03 非水電解液二次電池用セパレータ

Country Status (4)

Country Link
US (1) US20180254460A1 (ja)
JP (1) JP6463396B2 (ja)
KR (2) KR101909415B1 (ja)
CN (1) CN108539104B (ja)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10330521A (ja) * 1997-06-02 1998-12-15 Mitsui Chem Inc ポリオレフィン多孔フィルムおよびその用途
JPH11130900A (ja) 1997-10-27 1999-05-18 Asahi Chem Ind Co Ltd ポリエチレン微多孔膜
JP2007045547A (ja) * 2005-08-08 2007-02-22 Toshiba Elevator Co Ltd 免震建物用エレベータの乗場ドア設置構造
JP4848723B2 (ja) * 2005-09-30 2011-12-28 大日本印刷株式会社 非水電解液二次電池用電極板、及び非水電解液二次電池
JP2010180341A (ja) * 2009-02-06 2010-08-19 Sumitomo Chemical Co Ltd 樹脂組成物、シート、および多孔質フィルム
KR20140113743A (ko) * 2010-04-19 2014-09-24 미쓰비시 쥬시 가부시끼가이샤 적층 다공 필름, 비수 전해액 2 차 전지용 세퍼레이터, 및 비수 전해액 2 차 전지
JP2012069267A (ja) * 2010-09-21 2012-04-05 Nissan Motor Co Ltd 電池内部状態検出装置
JP2013044536A (ja) * 2011-08-22 2013-03-04 Toray Ind Inc 多孔性樹脂シートの空孔率測定方法、及び多孔性樹脂シートの製造方法
JP5915182B2 (ja) * 2012-01-06 2016-05-11 日産自動車株式会社 空中超音波探傷装置
US10158112B2 (en) * 2013-10-03 2018-12-18 Toray Industries, Inc. Porous membrane, battery separator obtained using same, and method of producing same
CN107068949B (zh) * 2014-08-29 2018-06-08 住友化学株式会社 层叠体、间隔件和非水二次电池
KR20170066686A (ko) * 2014-08-29 2017-06-14 스미또모 가가꾸 가부시키가이샤 다공질층, 다공질층을 적층하여 이루어지는 세퍼레이터, 및 다공질층 또는 세퍼레이터를 포함하는 비수 전해액 이차 전지
JP6622030B2 (ja) * 2015-08-24 2019-12-18 株式会社エンビジョンAescジャパン 電気化学素子の検査方法、および電気化学素子の製造方法

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