| 简介 |
A positive electrode active material for nonaqueous electrolyte secondary batteries includes : secondary particles composed of aggregated primary particles of a lithium composite oxide containing Ni : a rare earth compound attached to the surfaces of the secondary particles; a tungsten compound attached to the surfaces of the secondary particles : and lithium carbonate attached to the surfaces of the primary particles inside the secondary particles. The rate of Ni in the lithium composite oxide containing Ni with respect to the total number of moles of metal elements other than lithium in the lithium composite oxide containing Ni is 80 percent by mole or more, and the content of the lithium carbonate with respect to the total mass of the lithium composite oxide containing Ni is 0.3 percent by mass or more. |
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