Porous polyimide film, secondary battery separator, and secondary battery

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United States of America Patent

PATENT NO 11495863
APP PUB NO 20210202925A1
SERIAL NO

16853677

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Abstract

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A porous polyimide film has plural pores, in which an average flattening of the plural pores is within a range of 0.1 to 0.7, a coefficient of variation of a distance between adjacent pores is within a range of 0.10 to 0.40, and a front surface and aback surface communicate with each other through the plural pores.

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Patent Owner(s)

Patent OwnerAddress
FUJIFILM BUSINESS INNOVATION CORP7-3 AKASAKA 9-CHOME MINATO-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirose, Hidekazu Kanagawa, JP 99 338
Kashima, Yasunobu Kanagawa, JP 50 110
Nakada, Kosuke Kanagawa, JP 18 5
Sasaki, Tomoya Kanagawa, JP 148 474
Yoshimura, Kosaku Kanagawa, JP 25 24

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