Panasonic Energy Co., Ltd.

Tomoki Ikeda

Yasunobu Kawamoto

A method for producing a lithium-nickel complex oxide according to an aspect of the present disclosure comprises: a filling step for filling a firing container with a Ni-containing metal compound and a Li compound to obtain a filling material including the Ni-containing metal compound and the Li compound; and a firing step for firing the filling material that fills the firing container, wherein, in the filling step, when the filling material that fills the firing container is divided into two equal parts in the height direction, the molar ratio A of Li to metals other than Li in the filling material in the upper half region and the molar ratio B of Li to metals other than Li in the filling material in the lower half region satisfy 1<B/A<1.15.

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Tokushima, Japan

Tomoki Ikeda