리튬 이온전지 삼원계 층상구조 양극 활물질 연구 개발 동향

Resent Progress of LiNi1-x-yCoxMnyO2 for Lithium-ion batteries

The increased use of lithium-ion batteries in larger devices such as electric vehicles and energy storage devices has led to a need for improved battery performance. Researchers are developing cathode active materials with higher energy density, such as lithium phosphate and lithium transition metal compounds. Ternary cathode active materials with high capacity have also been developed, but there are issues with cation mixing and side reactions that can lead to reduced capacity, voltage drop, and even explosions. To address these issues, researchers are focusing on stabilizing and optimizing the cathode-electrolyte interface through methods such as coating with protective layers, cation or anion doping and changing of active materials structure. Herein, we briefly introduce and discuss the recent research with development trend of cathode material’s degradation solution for Li-ion batteries.