Sekisui Chemical Co., Ltd.

Rie Teranishi

Kenichi Shinmei

Masashi Kanoh

Akio Shokaku

Shinichiro Ito

A method for manufacturing an electrode having a laminated body including an insulating layer laminated on an electrode active material layer, said method comprising: a step of laminating an insulating layer on an electrode active material layer formed on a base, such that a thickness value of the insulating layer is at least twice a surface roughness Rz value of the electrode active material layer, the surface roughness Rz value being a ten point average roughness as measured in accordance with JIS B0601 1994.

Electrode manufacturing method, electrode, and secondary battery

A lithium ion secondary batteryincludes at least one cell obtained by laminating a positive electrode, an electrolyte layer, and a negative electrodein this order. The electrolyte layercontains a fluoride. The negative electrodehas a negative electrode active material layer containing a silicon compound. At least one of the negative electrodeshas a mass ratio of fluorine/silicon (F/Si ratio) of 1.0 or less on a surface of the negative electrode active material layer.

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Tsukuba, Japan

Rie Teranishi