Method for evaluating cathode slurry for all-solid-state battery

Abstract

A method for evaluating a cathode slurry for an all-solid-state battery, comprising: measuring an alternating current impedance with respect to a cathode slurry for an all-solid-state battery, in which a cathode active material, a solid electrolyte, a conductive agent and a binder are kneaded and dispersed, and which is sealed in a measurement container provided with electrodes at both ends thereof, identifying a frequency range from data of the measured alternating current impedance; and evaluating quality of coating condition of the solid electrolyte on the cathode active material, based on an imaginary axis parameter of the alternating current impedance in the identified frequency range and a real axis parameter of the alternating current impedance in the identified frequency range.

Dependencies are inferred from the claim text.