Ecopro Bm Co., Ltd.

Eun Byeol Hyeong

Moon Ho Choi

Hyun Jong Yu

Gyeong Jae Heo

Young Nam Park

Jung Bae Park

Jong Hwan Park

Yonghwan Gwon

The present invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same. The positive electrode active material according to the present invention reduces the specific surface area and grain boundary of a secondary particle in which a side reaction with an electrolyte solution occurs to improve the high-temperature stability of the positive electrode active material and reduce gas generation caused by the positive electrode active material.

Positive electrode active material for lithium secondary battery and lithium secondary battery including the same

The present invention relates to a lithium metal complex oxide and a preparation method thereof, and more particularly, to a lithium metal complex oxide mixed with a metal compound for a lithium reaction, stirred and heat-treated to allow residual lithium and a metal compound for reducing lithium (or a metal compound for lithium reduction) to react with each other on a surface to form a product, which is included in the lithium metal complex oxide, in which the content of Niis higher than the content of Niand a ratio of Ni/Niis 1.5 or greater so that life characteristics and capacity characteristics are improved, while residual lithium is reduced, and a preparation method thereof.

Lithium metal complex oxide and manufacturing method of the same

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Cheongju-si, South Korea

Eun Byeol Hyeong