LITHIUM SOLID-STATE SECONDARY BATTERY SYSTEM

摘要

The purpose of the present invention is to provide a lithium solid-state secondary battery system capable of restoring diminished output characteristics of a lithium solid-state secondary battery without degrading the negative electrode. The present invention achieves this by providing a lithium solid-state secondary battery system characterized by being provided with a lithium solid-state secondary battery and an overdischarge processing unit, in that the negative electrode active substance layer of the lithium solid-state secondary battery contains a negative electrode active substance and a sulfide solid electrolyte material containing Li, A (A is at least one of P, S, Ge, Al and B), and S, and having an ortho composition, and in that the negative electrode current collector is configured from a metal.