Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate
2011-08-16
2011-08-16
Gilliam, Barbara L (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
C429S170000
Reexamination Certificate
active
07998612
ABSTRACT:
An electrode group is constructed by disposing a positive electrode current collector exposed portion on one end side and a negative electrode current collector exposed portion on the other end side. A positive electrode current collector terminal plate and a negative electrode current collector terminal plate are connected to the positive and negative electrode current collector exposed portions, respectively. A conductive coned disc spring is disposed compressed between the positive electrode current collector terminal plate and a sealing plate. The coned disc spring has a dead zone in which the elastic force does not change according to the amount of deformation, and urges the negative electrode current collector terminal plate toward a bottom portion of a battery case with a defined elastic force.
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Imai Tadashi
Sumihara Masanori
Gilliam Barbara L
McDermott Will & Emery LLP
Panasonic Corporation
Wallen Thomas
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