Hitachi Zosen Corporation

Hirokazu Kawase

Kenji Okamoto

Hideyuki Fukui

Takeshi Sugiyo

Yasushi Takano

Risa Nagai

In a production method of an electrode for all-solid-state batteries, the electrode having an electrode mixture layer containing active material particles and solid electrolyte particles, the solid electrolyte particles include a first group of particles having an average particle diameter d, and a second group of particles having an average particle diameter d. The production method includes: a first mixing step of dry-mixing the active material particles and the first group of particles, to obtain a mixture A; a second mixing step of dry-mixing the mixture A and the second group of particles, to obtain a mixture B; and a pressing step of pressing the mixture B to form the electrode mixture layer. A ratio of the average particle diameter dto the average particle diameter d:d/dsatisfies d/d&#x2265;1.5.

Production method of electrode for all-solid-state batteries and production method of all-solid-state battery

A method for manufacturing an all-solid state secondary battery including a plurality of provisional battery bodies, the method including: forming each of the plurality of provisional battery bodies by pressing a positive-electrode mixture, a solid electrolyte, and a negative-electrode mixture that are stacked between a pair of electrode current collectors and pressure-molding the stacked provisional battery bodies with the electrode current collectors facing each other. The electrode current collectors facing each other have rough surfaces.

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Osaka, Japan

Hirokazu Kawase