Mitsubishi Gas Chemical Company, Inc.

National Institute of Advanced Industrial Science and Technology

Tohoku Techno Arch Co., Ltd.

Keita Noguchi

Genki Nogami

Takashi Mukai

Naoto Yamashita

Masahiro Yanagida

Aki Katori

Masahiro Shimada

Tomohiro Ito

Sangryun Kim

Shin-ichi Orimo

Shin-Ichi Orimo

The present invention is able to provide a method for producing an all-solid-state battery that has a solid electrolyte layer between a positive electrode layer and a negative electrode layer. This method for producing an all-solid-state battery is characterized by comprising: a step wherein a coating liquid is applied to at least one of the positive electrode layer and the negative electrode layer, said coating liquid containing a solid electrolyte solution, which is obtained by dissolving a solid electrolyte in a solvent, and fine particles which are insoluble in the solid electrolyte solution; and a step wherein the solvent is removed from the applied coating liquid, thereby having the solid electrolyte deposit on at least one of the positive electrode layer and the negative electrode layer.

Method for producing all-solid-state battery

A method for manufacturing an ion conductor including LiCBHand LiCBHis provided. The method includes mixing LiCBHand LiCBHin a molar ratio of LiCBH/LiCBH=1.1 to 20. An ion conductor including lithium (Li), carbon (C), boron (B) and hydrogen (H) is also provided. The ion conductor has X-ray diffraction peaks at at least 2θ=14.9±0.3 deg, 16.4±0.3 deg and 17.1±0.5 deg in X ray diffraction measurement at 25° C., and has an intensity ratio (B/A) of 1.0 to 20 as calculated from A=(X-ray diffraction intensity at 16.4±0.3 deg)−(X-ray diffraction intensity at 20 deg) and B=(X-ray diffraction intensity at 17.1±0.5 deg)−(X-ray diffraction intensity at 20 deg).

Ionic conductor containing high-temperature phase of LiCBH, method for manufacturing same, and solid electrolyte for all-solid-state battery containing said ion conductor

Provided is a production method for an all-solid-state battery having a solid electrolyte layer between a positive electrode layer and a negative electrode layer, the production method including: coating or impregnating the positive electrode layer and/or the negative electrode layer with a solid electrolyte solution in which a boron hydride compound serving as the solid electrolyte has been dissolved in a solvent; and removing the solvent from the coated or impregnated solid electrolyte solution and causing the solid electrolyte to precipitate on the positive electrode layer and/or the negative electrode layer.

Production method for all-solid-state battery

Growing community of inventors

Niigata, Japan

Keita Noguchi