| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite negative electrode active material, a negative electrode including the composite negative electrode active material, a lithium battery, and a manufacturing method of the negative electrode active material.SOLUTION: A composite negative electrode active material comprises: a complex core; and a coating layer formed on the core. The complex core includes: a carbon-based base material; and a metal/semi-metal nano structure arranged on the base material. The coating layer formed on the nano structure is larger, in quantity, than the coating layer formed on the carbon-based base material. The coating layer includes a metal oxide. In addition, a negative electrode comprising the composite negative electrode active material, a lithium battery comprising the negative electrode, and a manufacturing method of the composite negative electrode active material are provided. The invention allows a lithium battery to be improved in discharge capacity and life property. |
