METHOD AND PREPARATION OF LITHIUM TITANATE/CARBON COMPOSITE MATERIALS FOR LITHIUM ION BATTERY

摘要

PURPOSE: A Li4Ti5O12/carbon composite material is provided to have high electric conductivity, to charge and discharge high current density, thereby being used as a negative electrode active material for a lithium ion secondary battery and a hybrid capacitor. CONSTITUTION: A Li4Ti5O12/carbon composite material is for a negative electrode material of a secondary battery or hybrid capacitor and is a carbon material using a polymer material is formed on the surface of a Li4Ti5O12 material. A manufacturing method of the Li4Ti5O12/carbon composite material comprises a step of manufacturing a Li4Ti5O12 metal oxide by a sol-gel method; and a step of coating the metal oxide with a polymer material and carbonizing the metal oxide coated with the polymer material.