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1. (WO2018008263) BINDER COMPOSITION, ELECTRODE MIXTURE, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Pub. No.:    WO/2018/008263    International Application No.:    PCT/JP2017/018694
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Fri May 19 01:59:59 CEST 2017
IPC: H01M 4/62
Applicants: KUREHA CORPORATION
株式会社クレハ
Inventors: SAKAI, Yuki
堺 勇樹
KAMATA, Shintarou
鎌田 慎太郎
SUGAWARA, Emi
菅原 絵美
Title: BINDER COMPOSITION, ELECTRODE MIXTURE, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Abstract:
Provided is a binder composition that has substantial adhesiveness and that achieves excellent conductive auxiliary dispersion. This binder composition includes a vinylidene fluoride copolymer composition that includes: vinylidene fluoride; and acrylic monomers. The acrylic monomers are acrylates and/or methacrylates. The ratio (Mn2/Mn1) of the number average molecular weight (Mn2) of the vinylidene fluoride copolymer composition after being adsorbed onto alumina to the number average molecular weight (Mn1) of the vinylidene fluoride copolymer composition before being adsorbed onto alumina is less than 2.