SOL-GEL SYNTHESIS OF LIFEPO4 FOR LIB BASED ON LITHIUM CARBONATE FROM KAZAKHSTANI SPODUMENE FEEDSTOCKS

Abstract

LiFePO4 (LFP) cathode material with an olivine structure, in comparison with other cathode materials, has a number of positive properties, such as: high theoretical capacity and stability, low cost and environmental friendliness. The sol-gel method is one of the effective single-step methods for the production of LFP to control the structure of the electrode materials and provide a nanostructured homogeneous composition of the product particles. LFP was synthesized by sol-gel method from high-purity lithium carbonate obtained from spodumene raw materials of Kazakhstani deposits.