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    • 1. 发明授权
    • Electrode for lithium-ion secondary battery
    • 锂离子二次电池用电极
    • US08822074B2
    • 2014-09-02
    • US13138495
    • 2010-02-26
    • Yasuhiro WakizakaTakumi Sugimoto
    • Yasuhiro WakizakaTakumi Sugimoto
    • H01M4/62H01M4/13H01M4/64H01M10/052
    • H01M4/13H01M2/166H01M4/62H01M4/621H01M4/622H01M4/64H01M10/052Y02E60/122
    • Disclosed is an electrode for a lithium-ion secondary battery which includes a porous membrane layer that is inhibited from decreasing in flexibility. The electrode for lithium-ion secondary battery comprises a current collector and, formed thereon in the following order, an electrode active-material layer comprising an electrode active material, a thickener, and a binder and a porous membrane layer containing an inorganic filler, wherein the binder is one which, when used to form a composite film comprising the binder and the thickener, forms a spherical island phase in a cross section of the composite film, the island phase having an average diameter of 0.5 μm or larger. The binder preferably is an unsaturated carboxylic acid ester polymer having a content of alkyl acrylate monomer units of 85 mass % or higher.
    • 公开了一种用于锂离子二次电池的电极,其包括被抑制柔性降低的多孔膜层。 锂离子二次电池用电极包括集电体,并且依次形成包含电极活性物质,增稠剂和粘合剂的电极活性物质层和含有无机填料的多孔膜层,其中, 粘合剂是当用于形成包含粘合剂和增稠剂的复合膜时,在复合膜的横截面中形成球形岛相,其中岛相的平均直径为0.5μm以上。 粘合剂优选为具有85质量%以上丙烯酸烷基酯单体单元含量的不饱和羧酸酯聚合物。
    • 2. 发明申请
    • Electrode for lithium-ion secondary battery
    • 锂离子二次电池用电极
    • US20110311870A1
    • 2011-12-22
    • US13138495
    • 2010-02-26
    • Yasuhiro WakizakaTakumi Sugimoto
    • Yasuhiro WakizakaTakumi Sugimoto
    • H01M4/62H01M10/00
    • H01M4/13H01M2/166H01M4/62H01M4/621H01M4/622H01M4/64H01M10/052Y02E60/122
    • Disclosed is an electrode for a lithium-ion secondary battery which includes a porous membrane layer that is inhibited from decreasing in flexibility. The electrode for lithium-ion secondary battery comprises a current collector and, formed thereon in the following order, an electrode active-material layer comprising an electrode active material, a thickener, and a binder and a porous membrane layer containing an inorganic filler, wherein the binder is one which, when used to form a composite film comprising the binder and the thickener, forms a spherical island phase in a cross section of the composite film, the island phase having an average diameter of 0.5 μm or larger. The binder preferably is an unsaturated carboxylic acid ester polymer having a content of alkyl acrylate monomer units of 85 mass % or higher.
    • 公开了一种用于锂离子二次电池的电极,其包括被抑制柔性降低的多孔膜层。 锂离子二次电池用电极包括集电体,并且依次形成包含电极活性物质,增稠剂和粘合剂的电极活性物质层和含有无机填料的多孔膜层,其中, 粘合剂是当用于形成包含粘合剂和增稠剂的复合膜时,在复合膜的横截面中形成球形岛相,其中岛相的平均直径为0.5μm以上。 粘合剂优选为具有85质量%以上丙烯酸烷基酯单体单元含量的不饱和羧酸酯聚合物。