| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte power storage device capable of keeping a high energy density, and superior in cycle characteristic.SOLUTION: A nonaqueous electrolyte power storage device comprises: a positive electrode including a positive electrode active material which allows anions to go thereinto and to go out thereof; a negative electrode including a negative electrode active material; and a nonaqueous electrolyte solution. The positive electrode active material is coated with a polymer, and the polymer has a fluorine component. In a preferred embodiment thereof, the positive electrode active material includes a carbonaceous material coated with a fluorine-containing polymer for instance.SELECTED DRAWING: Figure 2 |
