| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous lithium type storage device which allows both of high input and output characteristics and high durability to be achieved.SOLUTION: A nonaqueous lithium type storage device comprises: an electrode laminate having a negative electrode body, a positive electrode body and a separator; a nonaqueous electrolyte; and an outer package in which the electrode laminate and the nonaqueous electrolyte are enclosed. The negative electrode body has: a negative electrode current collector; and a negative electrode active material layer provided on one or each side of the negative electrode current collector, and including a negative electrode active material. The negative electrode active material includes a carbon material capable of occluding and releasing lithium ions. The positive electrode body has: a positive electrode current collector; and a positive electrode active material layer provided on one or each side of the positive electrode current collector, and including a positive electrode active material. The positive electrode active material includes active carbon. The nonaqueous electrolyte includes, to the total mass of the nonaqueous electrolyte, 0.5 mol/L or more of lithium salt, 0.5-20 mass% of phosphazenes having a particular structure, and cyclic carbonate and chain carbonate. |
