Samsung Sdi Co., Inc.

Ecopro Bm Co., Ltd.

Eun Ok Oh

Moon Ho Choi

Hyun Jong Yu

Suk Yong Jeon

Jong Seung Shin

Yoon Young Choi

Sang Wook Lee

The present invention relates to a method of producing a cobalt-coated precursor, the cobalt-coated precursor produced by the method and a positive electrode active material for a lithium secondary battery, the positive electrode active material which is prepared using the cobalt-coated precursor and, more particularly, to a method of preparing a new positive electrode active material having improved high capacity and stability by coating cobalt on the surface of a precursor in the precursor step, thereby improving characteristics of the precursor degraded when washed with water, and a positive electrode active material prepared by the method.

Method of producing cobalt-coated precursor, cobalt-coated precursor produced thereby, and positive electrode active material prepared using same

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Chungcheongnam-do, South Korea

Eun Ok Oh