NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, AS WELL AS LITHIUM SECONDARY BATTERY EQUIPPED WITH NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a lithium secondary battery excellent in charge and discharge cycle characteristics, through restraint of deformation of a negative electrode due to expansion stress of a negative electrode active material and restraint of exfoliation of the negative electrode active material from a current collector.

SOLUTION: The negative electrode 10 for a lithium secondary battery is provided with a collector 11 with a plurality of convex parts 11a on the surface, a first active material layer 12 formed on the collector 11, and a second active material layer 15 located on the first active material layer 12 and containing a plurality of active material particles 14, each of which 14 is located on a corresponding convex part 11a of the collector 11, and the first active material layer 12 and the plurality of active material particles 14 are equipped with a chemical composition expressed in: SiOx(0COPYRIGHT: (C)2009,JPO&INPIT