Lithium-iron disulfide cylindrical cell with modified positive electrode
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United States of America Patent
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app pub date -
Oct 17, 2006
filing date -
Jul 26, 2006
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Abandoned
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Abstract
A primary electrochemical cell, and a method for making the same, relies upon a jellyroll electrode with a positive electrode material deposited on a conductive carrier having partially uncoated portion wherein electrochemically active material is coated on only one side of the carrier in order to achieve superior performance in comparison to a cell having no such uncoated portion. The partially uncoated portion is oriented along a longitudinal axis of the jellyroll. The positive electrode material is preferably iron disulfide, whereas the negative electrode comprises lithium or a lithium alloy.
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