Hitachi Zosen Corporation

Risa Nagai

Hirokazu Kawase

Hidetake Okamoto

Shunji Kinoshita

An all-solid battery includes at least a unit cell including a positive electrode, a negative electrode, and an ion-conductive solid electrolyte layer interposed between the positive electrode and the negative electrode. The solid electrolyte layer includes an inorganic solid electrolyte, and a resistance R1 of the unit cell when the pressure applied in a thickness direction of the unit cell is 100 kPa is 90 Ωcmor less.

All-solid battery and method for producing the same

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.

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Osaka, Japan

Risa Nagai