| 摘要 |
An all solid state secondary battery configured with the use of a NASICON-type compound for a solid electrolyte and a lithium-containing manganese oxide for a positive electrode active material. The all solid state secondary battery includes a positive electrode layer and a solid electrolyte layer, in which a positive electrode active material constituting the positive electrode layer contains a compound represented by the general formula LixMyMnzO4, wherein 1≰x≰1.33, 0≰y≰0.5, and 1.67−y≰z≰2−y, and M is at least one element selected from the group consisting of Ni, Co, Al, and Cr, and a solid electrolyte constituting the solid electrolyte layer contains a compound represented by the general formula Li1+wAlwGe2−w(PO4)3, wherein 0≰w≰1.
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