| 摘要 |
PROBLEM TO BE SOLVED: To provide a negative electrode mixture which enables the rise in cycle performance, and a lithium ion battery having a high cycle performance.SOLUTION: A negative electrode mixture comprises: a negative electrode active material; and a halogen-containing sulfide solid electrolyte glass ceramic. The negative electrode active material is graphite. The halogen-containing sulfide solid electrolyte glass ceramic is expressed by the following formula (1): LaMbPcSdXeOf (1) (where L represents an alkali metal; M represents B, Al, Si, Ge, As, Se, Sn, Sb, Te, Pb, Bi, or a combination thereof; X represents I, Cl, Br, F, or a combination thereof; and a to f satisfy 0<a≤12, 0≤b≤0.2, c=1, 0<d≤9, 0<e≤9, 0≤f≤9 respectively). |
