Structure of an electrode of a secondary battery

Details Structure of an electrode of a secondary battery Structure of an electrode of a secondary battery

1997-01-21

1998-12-15

Willis, Jr., Prince

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

429233, 429241, H01M 470

Patent

active

058494308

ABSTRACT:
Disclosed is a secondary battery, which comprises a cylindrically wound laminate consisting of a positive electrode plate, a negative electrode plate and a separator plate interposed therebetween, the negative electrode plate including an electrolytically active substance, a perforated support plate for supporting the electrolytically active substance and serving as an electron collector, the electrolytically active substance being applied to both side surfaces of the support plate, a protective can for enclosing the cylindrically wound laminate, and an electrolyte, wherein the perforation density of the perforated support plate is made greater in the outer portions more than in the central portion, so that the binding forces between the support plate and the electrolytically active substance become substantially uniform throughout the support plate and the conductivity of the support plate is considerably increased.

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