Battery grade lithium carbonate wet material is the key raw material for lithium-ion battery cathode materials, specifically refers to the lithium-containing aqueous solution that has been finely processed to meet the requirements of high purity. It is used to manufacture cathode materials for new energy vehicles such as electric vehicles and hybrid vehicles. The quality of this wet material is very important, so it needs to go through multiple processes and strict quality testing to ensure that its lithium content, sodium, iron, sulfate, chlorine and other impurities meet the required standards. Generally speaking, the purity should be 99.5%, the appearance of white crystalline powder without impurities, completely soluble in water, the pH value is controlled between 6.5 and 8, and the content of calcium and magnesium ions should be less than 0.05%. These high standards ensure the stability and reliability of battery grade lithium carbonate wet material.