| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive electrode active material for a lithium ion battery having excellent battery characteristics.SOLUTION: The positive electrode active material for a lithium ion battery contains a lithium-containing transition metal oxide, and a chlorine component, a silicon component, and a sulfur component, where the content of each component is 100 ppm or less with respect to the content of the lithium-containing transition metal oxide. The total content of the chlorine component, the silicon component, and the sulfur component is 200 ppm or less with respect to the content of the lithium-containing transition metal oxide. |
