Aluminum current collector for an electrochemical cell having a solid cathode
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United States of America Patent
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Sep 24, 1996
Grant Date -
N/A
app pub date -
Jun 2, 1995
filing date -
Jun 2, 1995
priority date (Note) -
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Abstract
The electrochemical cell includes an electrode structure having an aluminum current collector in combination with an active cathode material containing polycarbon monofluoride. The electrode structure also includes a polymeric separator and a lithium anode. The electrode structure is spiral wound and mounted within a cylindrical housing formed of conventional stainless steel. Care is taken to ensure that the aluminum foil isolates the polycarbon monoflouride of the cathode material from the stainless steel of the housing. The cylindrical housing is flooded with a non-aqueous electrolyte solution. The resulting cell is employed within an implantable medical device. In an alternative embodiment, electrode structures employing the aluminum current collector and the polycarbon monoflouride active cathode material are formed as rectangular plates and are mounted in parallel within a rectangular housing. In another alternative embodiment, the aluminum current collector is employed within a button cell.
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