High purity grade lithium carbonate (Li2CO3) purity ≥99.9%, mainly used in the preparation of high-end lithium ion battery cathode materials and battery grade lithium fluoride preparation; In terms of photoelectric information, high-purity lithium carbonate is used to prepare lithium tantalate and lithium niobate; At the same time, high-purity lithium carbonate is also used in optical special glass, magnetic material industry and supercapacitors, pharmaceutical industry, etc.