Ecopro Bm Co., Ltd.

Ju Kyoung Kang

Moon Ho Choi

Seung Hyun Choi

Gyeong Jae Heo

A Reum Yang

The present disclosure is related to a positive electrode active material for lithium secondary batteries, a method for preparing the positive electrode active material, and a lithium secondary battery including the positive electrode active material. The positive electrode active material for lithium secondary batteries includes an overlithiated layered oxide (OLO), and the overlithiated layered oxide includes primary particles having a size in a range of 300 nm to 10 μm in an amount ranging from 50 to 100% by volume with respect to the total overlithiated layered oxide.

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

The present invention relates to a positive electrode additive for a lithium secondary battery and a positive electrode material including the same, and more particularly, to a positive electrode additive for a lithium secondary battery, which enables stable maintenance of the electrochemical properties of a lithium secondary battery by reducing irreversible capacity loss of a negative electrode and reductions in gelation and gas generation, caused by a conventional positive electrode additive, and a positive electrode material including the same.

Growing community of inventors

Cheongju-si, South Korea

Ju Kyoung Kang