| 简介 |
Dissolution of cobalt from a positive electrode active material is suppressed. Disclosed is a positive electrode active material for a nonaqueous electrolyte secondary battery that contains a lithium transition metal oxide. Fluorine and at least one element selected from zirconium, titanium, aluminum, magnesium, and rare earth elements adhere to the surface of the lithium transition metal oxide, and the lithium transition metal oxide contains cobalt. The lithium transition metal oxide has an average particle diameter of 10 μm or less. |
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