Sk on Co., Ltd.

Sk Innovation Co., Ltd.

Sk Ie Technology Co., Ltd.

Se Rah Moon

Hyo Shin Kwak

Myoung Lae Kim

Jik Soo Kim

Sang Bok Kim

Duck Chul Hwang

Mi Jung Noh

Jin Seok Seo

Sang Yoon Park

Hyeon Jeong Kim

Hye Ri Kim

A cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a thio-based compound formed on at least portion of a surface of the lithium metal oxide particle. The thio-based compound has a double bond that contains a sulfur atom. Chemical stability of the lithium metal oxide particle may be improved and surface residues may be reduced by the thio-based compound.

Cathode active material for lithium secondary battery and method of manufacturing the same

Provided are a polyamideimide film, a window cover film, and a display panel including the same. More specifically, a polyamideimide film including an amideimide structure derived from a dianhydride, a diamine, and an aromatic diacid dichloride is provided, wherein a chlorine content in the film is 5 to 33 ppm and a yellow index change amount ΔYI is 5 or less, the yellow index change amount being measured in accordance with ASTM E313 after repeating a process of irradiating 0.55 W/mof UVA at 340 nm at 40° C. for 20 hours and then blocking UVA for 4 hours three times.

Polyamideimide film and flexible display panel including the same

Growing community of inventors

Daejeon, South Korea

Se Rah Moon