Patent ID: 9413033
Filing Date: 2016-08-09
CPC Classification: H01M,Y02E,Y02P

Claim Text:
1. An all-solid lithium ion secondary battery comprising a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, wherein an electrode active material included in the positive electrode layer is a phosphate having an olivine structure; a solid electrolyte crystal included in the solid electrolyte layer is polyphosphate-containing NASICON-type Li where M is at least one selected from Al, La, Sr, Mg, Y, Ba, Zn, Sc, and Ca, x is 0.1 to 1.2, y is 0.1 to 1.1, z is 0.1 to 1.0, and a is −1.0 to 1.0.