Develop graphene composite lithium iron phosphate technology, break through international carbon coating technology patent barriers, and improve the conductivity and rate performance of lithium iron phosphate materials. Focus on developing high capacity lithium rich manganese based positive electrode materials and silicon carbon composite negative electrode materials, as well as developing lithium manganese phosphate positive electrode materials and high-temperature lithium manganese oxide positive electrode materials that are used in combination with ternary positive electrode materials. Develop graphene composite lithium iron phosphate technology, break through international carbon coating technology patent barriers, and improve the conductivity and rate performance of lithium iron phosphate materials. Focus on developing high capacity lithium rich manganese based positive electrode materials and silicon carbon composite negative electrode materials, as well as developing lithium manganese phosphate positive electrode materials and high-temperature lithium manganese oxide positive electrode materials that are used in combination with ternary positive electrode materials.