| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite active material for a lithium secondary battery and a manufacturing method for the same that can manufacture an electrode material whose cubic expansion can be suppressed even after charging/discharging is repeated, and can manufacture a lithium secondary battery having an excellent cycle characteristic.SOLUTION: A composite active material for a lithium secondary battery contains a graphite component, hard carbon, soft carbon and a battery active material which can be combined with lithium ion.SELECTED DRAWING: None |
