CONDUCTIVE ASSISTANT FOR NEGATIVE ELECTRODE, COMPOSITE MATERIAL ELECTRODE, AND LITHIUM ION SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a conductive assistant for a negative electrode with improved conductivity, a composite material electrode, and a lithium ion secondary battery.SOLUTION: The conductive assistant for a negative electrode includes carbon nano-tubes on a surface of which a coating layer containing metallic lithium is formed.