发明名称 Battery including lithium ion conductive solid electrolyte and method for producing the same
摘要 A lithium ion conductive glass ceramics which solves a problem of low thermal stability of the related-art lithium ion conductive glass ceramics and which is high in lithium ion conductivity, high in thermal stability of a raw glass and easy for molding is provided. The amount of a specified component in a glass ceramics (raw glass) is limited to a specified range, and specifically, a ZrO2 component is incorporated in the range of from 0.5% to 2.5% in terms of % by mass on the oxide basis.
申请公布号 US8883355(B2) 申请公布日期 2014.11.11
申请号 US200912383047 申请日期 2009.03.19
申请人 Ohara, Inc. 发明人 Inda Yasushi
分类号 H01M10/056;C03C10/00;C03C4/18;H01M10/0525;H01M10/0562 主分类号 H01M10/056
代理机构 Rankin, Hill & Clark LLP 代理人 Rankin, Hill & Clark LLP
主权项 1. 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 ZrO2 component, from 3.5% to 5.0% of Li2O, from 50% to 55% of P2O5, from 18.2% to 30% of GeO2, from 10% to 22% of TiO2, and from 5% to 12% of M2O3, 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 P2O5/ZrO2 value being 25 or more and not more than 100, and not comprising an M′2O3 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.
地址 Kanagawa JP