| 摘要 |
PROBLEM TO BE SOLVED: To provide a large capacity lithium-based electricity storage device, achieving high energy density as well as long life and excellent reliability by solving problems of capacity deterioration or the like due to rapid charge/discharge of lithium cobaltate and lithium iron phosphate.SOLUTION: A lithium-based electricity storage device includes a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material and an electrolyte interposed between the positive electrode and the negative electrode. In the lithium-based electricity storage device, the positive electrode active material of the positive electrode contains lithium cobaltate (LiCoO) and/or lithium iron phosphate (LiFePO), active carbon and a lithium metal salt. |
