BINDER FOR NON-AQUEOUS SECONDARY BATTERY SEPARATOR, RESIN COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY SEPARATOR, NON-AQUEOUS SECONDARY BATTERY SEPARATOR, AND NON-AQUEOUS SECONDARY BATTERY
To provide: a binder for a non-aqueous secondary battery separator that can form a non-aqueous secondary battery separator excellent in flexibility, adhesion, electrolyte resistance and heat resistance; a resin composition for a non-aqueous secondary battery separator excellent in solution stability...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide: a binder for a non-aqueous secondary battery separator that can form a non-aqueous secondary battery separator excellent in flexibility, adhesion, electrolyte resistance and heat resistance; a resin composition for a non-aqueous secondary battery separator excellent in solution stability containing the binder for a non-aqueous secondary battery separator; a non-aqueous secondary battery separator provided with a protective layer formed from the resin composition for a non-aqueous secondary battery separator; and a non-aqueous secondary battery with good cycle characteristics provided with the non-aqueous secondary battery separator.SOLUTION: A binder for a non-aqueous secondary battery separator contains: a polymer (A) which is a polymer of monomers (a) including a monomer (a1) having an acidic functional group, a monomer (a2) having an amide group, and a (meth)acrylic acid alkyl ester monomer (a3); and a condensation product (B) of a silane compound (b) represented by general formula (1). A glass transition temperature of the binder is -60°C to 60°C.SELECTED DRAWING: Figure 1
【課題】柔軟性、密着性、電解液耐性、耐熱性に優れる非水二次電池セパレータを形成可能な非水二次電池セパレータ用バインダー、かかる非水二次電池セパレータ用バインダーを含む溶液安定性に優れた非水二次電池セパレータ用樹脂組成物、非水二次電池セパレータ用樹脂組成物から形成されてなる保護層が設けられてなる非水二次電池セパレータ、ならびにこの非水二次電池セパレータを備えるサイクル特性が良好な非水二次電池を提供すること。【解決手段】酸性官能基を有する単量体(a1)、アミド基を有する単量体(a2)、および(メタ)アクリル酸アルキルエステル単量体(a3)を含む単量体(a)の重合体である重合体(A)と、一般式(1)で表されるシラン化合物(b)の縮合生成物(B)とを含み、ガラス転移温度が-60℃~60℃である、非水二次電池セパレータ用バインダーにより解決される。【選択図】 図1 |
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