Cathode binder composition, cathode slurry, cathode, and lithium ion secondary battery

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United States of America Patent

PATENT NO 9941518
APP PUB NO 20160240854A1
SERIAL NO

15028115

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Abstract

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Cathode binder composition having excellent binding properties and oxidation resistance. Also, cathode slurry, cathode, and lithium ion secondary battery produced using the cathode binder composition. The cathode binder composition contains a graft copolymer in which a monomer containing acrylonitrile as the main component is grafted onto polyvinyl alcohol having an average degree of polymerization of 300 to 3000 and a degree of saponification of 70 to 100% by mol. The cathode slurry contains the cathode binder composition, a cathode active material, and a conductive auxiliary. The cathode is produced using the cathode slurry. The lithium ion secondary battery contains a cathode prepared in this manner.

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Patent Owner(s)

Patent OwnerAddress
DENKA COMPANY LIMITED1-1 NIHONBASHI-MUROMACHI 2-CHOME CHUO-KU TOKYO 1038338 ?1038338

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sakurai, Yasuaki Machida, JP 4 11
Watanabe, Jun Machida, JP 387 3291
Yoshida, Jun Machida, JP 227 1333

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