Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Reexamination Certificate
2005-08-23
2005-08-23
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
C429S129000, C429S130000
Reexamination Certificate
active
06933074
ABSTRACT:
An insulator ring for preventing short circuit contact between the opposite polarity electrode in a case-terminal cell design is described. Typically, a lithium/silver vanadium oxide cell is built in a case-negative design with the casing serving at the negative terminal. The cathode is connected to an insulated terminal pin. In a conventional cell construction, the electrode assembly is enclosed in an insulator bag in addition to the electrode separator envelopes before being housed inside the casing. The insulator bag ensures the cathode electrode will not come into short circuit contact with the casing. In the present invention, the insulator bag is replaced with an insulator ring which only protects those portions of the electrode assembly vulnerable to short circuit contact.
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Freitag Gary
Frustaci Dominick
Hallifax Paul
Mercado Julian
Ryan Patrick Joseph
Scalise Michael F.
Wilson Greatbatch Technologies, Inc.
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