Aesc Japan Ltd.

Takeshi Saito

Moeko Sato

Shoichiro Shiraishi

Provided is a positive electrode for a lithium ion secondary battery including a metal foil () (current collector), a first mixture layer () which is provided on one surface of the metal foil () and contains a positive electrode active material, and a second mixture layer () which is partially covered by the first mixture layer () and includes, as a main component, particles different from the active material, in which the second mixture layer () is provided on one end () side of the first mixture layer () in a boundary portion between a formed area of the first mixture layer () and a non-formed area of the first mixture layer (), one end () of the second mixture layer () is positioned between the one surface of the metal foil () and a lower surface of the first mixture layer () in the formed area of the first mixture layer (), and the other end () is positioned in the non-formed area, and the first mixture layer () and the second mixture layer () contain a dispersed conductive substance.

Positive electrode for lithium ion secondary battery, positive electrode sheet for lithium ion secondary battery, and method for manufacturing the same

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Zama, Japan

Takeshi Saito