Separator and nonaqueous battery
AssigneeNippon Kodoshi Corporation
InventorsRyoichi FUKUNAGA, Masahiko UETA
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Abstract
A separator is described having high safety, high output characteristics, and excellent heat resistance, and a nonaqueous battery including the separator. The separator is characterized in that it is a porous sheet formed using a specifically fibrillated raw material that has fibrillated, regenerated-cellulose fibers as necessary main components. Average pore diameter of through-holes is 0.03 μm to 1.0 μm inclusive. A nonaqueous battery is then manufactured using this separator.
Claims8
A separator that is a porous sheet made to a thickness of 5 to 60 μm, a porosity of 30 to 80%, and an average pore diameter of through-holes of 0.03 μm to 1.0 μm, and the porous sheet is formed from a raw material made of fibrillated regenerated-cellulose fibers having a fiber diameter of 2.0 dtex or less and a fiber length of 8 mm or less.
Dependencies are inferred from the claim text.