Envision Aesc Japan Ltd.

Aesc Japan Ltd.

Dai Aya

Mayuko Koyama

A battery electrode, comprising a current collector, an active material layer on the current collector, and an insulative porous film on the active material layer, wherein the insulative porous film comprises particles of an inorganic oxide and particles of an adsorbent.

Battery electrode, and lithium ion secondary battery

Provided is a current collector electrode sheet () including a slurry application area () formed by intermittently applying and drying a slurry containing an active material and a non-application area (), on both surfaces of a metal foil (), in which the application area () and the non-application area () are alternately formed in a winding direction of the metal foil () having a strip shape, and, in a compression step of continuously compressing the slurry application area () and the non-application area () using a pair of compression rollers in a thickness direction of the current collector electrode sheet (), an area which is not compressed by the compression rollers, is present in a tailing portion () at a terminal end () of each application area ().

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Sagamihara, Japan

Dai Aya