Posco Co., Ltd

Research Institute of Industrial Science & Technology

Hyunwoo Lee

Kwang Seok Park

Woo Chul Jung

Woonkyoung Park

Ki Young Kim

Heok Yang

Juyoung Kim

Seung Taek Kuk

Sung Kook Park

Sang Won Kim

Jung Kwan Park

This disclosure relates to a method of preparing a lithium compound that includes preparing a lithium phosphate, mixing the lithium phosphate with sulfuric acid to obtain a mixture, converting the lithium phosphate into lithium sulfate through a reaction in the mixture, and separating the lithium sulfate in a solid phase, wherein in the step of converting the lithium phosphate into lithium sulfate through the reaction in the mixture, a sum concentration ([P+S] mol/L) of phosphorus (P) and sulfur (S) in a liquid phase of the mixture is greater than or equal to 5 mol/L.

Method of preparing lithium compound

Growing community of inventors

Pohang-si, South Korea

Hyunwoo Lee