| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive electrode active material film capable of being formed by applying a passing deposition method, and a film forming method of a positive electrode active material film by a passing deposition method.SOLUTION: A positive electrode active material film 20 formed of a lithium-containing positive electrode active material includes a plurality of first layers 21 and a plurality of second layers 22. Each of the first layers 21 has a first density, and has a thickness of 10 nm or less. Each of the second layers 22 has a second density higher than the first density, and has a thickness thicker than that of each of the first layers 21. In the positive electrode active material film 20, the first layers 21 and the second layers 22 are alternately stacked.SELECTED DRAWING: Figure 9 |
