ALL-SOLID BATTERY, AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a technique which enables the reduction in internal resistance of an all-solid battery.SOLUTION: An all-solid battery comprises: a positive electrode layer including a positive electrode active material; a negative electrode layer including a negative electrode active material; and a solid electrolytic layer located between the positive and negative electrode layers. The solid electrolytic layer is formed by an oxide-based solid electrolytic material. The negative electrode layer includes a lithium-aluminum alloy as the negative electrode active material, and a sulfide-based solid electrolytic material. Of particles of the lithium-aluminum alloy included in the negative electrode layer, particles of a mass ratio of 95% or larger have a particle diameter of 100 μm or smaller.