Patent ID: 8883355

Claim:
A battery comprising: a solid electrolyte comprising a lithium ion conductive glass ceramics; a positive electrode material and a negative electrode material on both sides of the solid electrolyte; and a collector, wherein the lithium ion conductive glass ceramics comprises from 0.5 to 2.0% of a ZrO 2 component, from 3.5% to 5.0% of Li 2 O, from 50% to 55% of P 2 O 5 , from 18.2% to 30% of GeO 2 , from 10% to 22% of TiO 2 , and from 5% to 12% of M 2 O 3 , wherein M is one or two members selected from Al and Ga, in terms of % by mass on the oxide basis, with a mass % ratio P 2 O 5 /ZrO 2 value being 25 or more and not more than 100, and not comprising an M′ 2 O 3 component, wherein M′ is one or two or more members selected from In, Fe, Cr, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, wherein, when a crystallization starting temperature of a raw glass is defined as Tx (° C.), and a glass transition point of the raw glass is defined as Tg (° C.), a value of (Tx−Tg) is 97.3° C. or more and not more than 102.7° C., and a lithium ion conductivity is 1.0×10 −4 S·cm −1 or more at 25° C.