SOLID ELECTROLYTE, METHOD FOR PRODUCING THE SAME, AND ELECTRICITY STORAGE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a solid electrolyte high in ionic conductivity.SOLUTION: In an electricity storage device 20, a conductive layer 22 is formed on a substrate 21, and a positive electrode 24 including a positive electrode active material, a solid electrolyte 26 and a negative electrode 28 including a negative electrode active material are sequentially stacked and formed on the conductive layer 22. A collector lead 23 is connected to the conductive layer 22, and a collector lead 29 is connected to the negative electrode 28. In the electricity storage device 20, the solid electrolyte 26 contains a compound represented by a general formula: LiBNH(1≤x≤3), and contains an M component that is at least one of Co and Ni.