Patent ID: 9601759
Date: 2017-03-21
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. An all-solid-state secondary battery, comprising: a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode, wherein the cathode comprises a cathode active material layer containing at least a cathode active material and a solid electrolyte; wherein the cathode active material comprises a lithium transition metal compound; wherein particles of the cathode active material have an oil absorption amount of 35 to 45.5 ml per 100 g, the oil absorption amount being defined by an amount of linseed oil absorbed inside and between primary particles of the particles of the cathode active material; wherein particles of the solid electrolyte have an average particle diameter of 1.5 to 2.5 μm; and wherein the cathode active material layer is formed by mixing the particles of the cathode active material and the particles of the solid electrolyte in the absence of solvent and pressure-forming the resulting mixture.