Electrochemical Cell with Improved Internal Contact
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United States of America Patent
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app pub date -
Oct 8, 2012
filing date -
Jan 28, 2005
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Abandoned
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Abstract
Electrochemical battery cells with strip-like electrodes and having a pressure contact between a lead from one of the electrodes and a sidewall of the cell container. An electrochemical cell having a spiral wound electrode assembly having an internal lead in direct pressure contact with a lithium foil negative electrode free of a separate current collector and in contact with an inner portion of the cell container, wherein specified contact between the lead and lithium foil provides current flow between the container and foil.
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