Patent ID: 6045947
Filing Date: 2000-04-04
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
An electrode plate for a secondary battery with nonaqueous electrolyte comprising a collector and a coated layer formed on the collector by coating a coating solution containing at least an active material for a battery and a binder on the collector and then drying the same,wherein said coated layer of the coating solution has a thickness of 80 .mu.m or more, and the coated layer having the thickness of 80 .mu.m or more is formed by repeating a set of steps of coating the coating solution on said collector and then drying the same by at least two sets and by increasing the thickness of the coated layer in each set of these steps after the second coating and drying steps by an amount in a range of 0.4 to 1.6 times a thickness of a coated layer already formed in the preceding coating and drying steps, andwherein a ratio (b/a) of an amount (b) of a binder existing at a boundary portion of the coated layer on a side opposite to a collector side boundary portion to an amount (a) of a binder existing at a boundary portion of the coated layer contacting the collector is 0.05 or more and less than 2.