ALL-SOLID-STATE BATTERY

An all-solid-state battery includes: a positive electrode collector layer; positive electrode active material layer; solid electrolyte layer; negative electrode active material layer; and a negative electrode collector layer, wherein the positive and negative electrode active material layer contains a positive and negative electrode active material respectively, and the negative electrode active material contains a compound represented by the following general Expression (I): Lia1Vb1Tic1Ald1(PO4)3 (where, in Expression (I), a1, b1, c1, and d1 indicate numbers in which they satisfy 2.8≤a1