Lithium/fluorinated carbon (Li/CF x ) electrochemical cell

Details Lithium/fluorinated carbon (Li/CF x ) electrochemical cell Lithium/fluorinated carbon (Li/CF x ) electrochemical cell

2005-08-30

2009-11-03

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S234000, C429S246000, C029S623500

Reexamination Certificate

active

07611805

ABSTRACT:
An electrochemical cell comprising a cathode of a powder material pressed into intimate contact with a rod-shaped current collector and an anode at least partially wrapped around the cathode is described. The cathode current collector is preferably provided with a plurality of offset flats offset with respect to each other. This helps prevent the cathode active material from sliding off of the rod-shaped current collector. The anode has spaced apart edges at opposite ends of its width that form a gap with the anode wrapped around the cathode. This helps in sliding the anode/cathode electrode assembly into a cylindrical tube comprising the cell casing. A preferred chemistry is a lithium/CFxactivated with a nonaqueous electrolyte.

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