| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium ion conductive composite electrolyte and a lithium ion secondary battery, which prevent leakage of electrolyte and have superior cycle performance and superior lithium ion conductive properties.SOLUTION: In a lithium ion conductive composite electrolyte 1, a lithium ion conductive inorganic solid electrolyte particle consists of composite metal oxides including a garnet structure expressed by chemical formula: LiLaAZrMO, wherein 0≤x≤3, 0≤y≤2, A is one of Y, Nd, Sm, and Gd, and M is Nb or Ta. The porous body 2 consisting of the lithium ion conductive inorganic solid electrolyte particles and organic polymers holds lithium ion conductive polymer gel electrolytes. A lithium ion secondary battery 11 includes the lithium ion conductive composite electrolyte 1 between a positive electrode 12 and a negative electrode 13. |
