Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode or plural tablets – pellets or discs
Reexamination Certificate
2006-09-15
2010-12-21
Yuan, Dah-Wei D (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode or plural tablets, pellets or discs
C429S141000, C429S231500, C429S231950, C429S245000
Reexamination Certificate
active
07855009
ABSTRACT:
A new design for a cathode having a configuration of: SVO/first current collector/CFx/second current collector/SVO is described. The two cathode current collectors are vertically aligned one on top of the other in a middle region or zone of the cathode. This coincides to where a winding mandrel will be positioned to form a wound electrode assembly with an anode. The overlapping region of the two current collectors helps balance the expansion forces of the exemplary SVO and CFxactive material layers. This, in turn, helps maintain a planar cathode that is more amenable to downstream processing. The use of two current collectors on opposite sides of an intermediate cathode active material also provides for enhanced reliability when cathodes are wound from the center as they lend structural integrity to outer portions of the wind.
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Gan Hong
Rubino Robert S
Takeuchi Esther S
Enin-Okut Edu E
Greatbatch Ltd.
Scalise Michael F.
Yuan Dah-Wei D
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