| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply unit capable of improving the convenience of an air cell.SOLUTION: The power supply unit 10 includes: a secondary cell 12a; an air cell of lamination type or wound type with a negative electrode including magnesium or magnesium alloy; and a charge/discharge controller for storing electric power generated at the air cell in the secondary cell. The secondary cell is a lithium ion secondary cell and has a positive electrode including lithium composite oxide containing nickel, cobalt and manganese and a negative electrode including lithium titanate.SELECTED DRAWING: Figure 1 |
