Patent ID: 7407727
Filing Date: 2008-08-05
Classification: H01M,Y02E

Abstract:
1. An electrode used for a non-aqueous electrolyte secondary battery, which comprises a current collector of a metallic material not to be alloyed with Li and a pattern of dots formed on the current collector, which is an active material of a metallic material able to be alloyed with Li, wherein the diameter of each dot is 1-500 micrometers, the shape of the dots is a cylindrical column or a cone, the dots are regularly arranged and also are completely separated from each other and project outward from the current collector, the metallic material able to be alloyed with Li is at least one element selected from the group consisting of elements of group 14 and alloy thereof, and the occupancy rate of the dots on the current collector is 50-90%.