POSITIVE ELECTRODES FOR LITHIUM BATTERIES
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United States of America Patent
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Jan 1, 2015
app pub date -
Aug 8, 2014
filing date -
Sep 21, 2007
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Abstract
Lithium-rich compounds that are precursors for positive electrodes for lithium cells and batteries comprise a Li2O-containing compound as one component, and a second charged or partially-charged component, selected preferably from a metal oxide, a lithium-metal-oxide, a metal phosphate or metal sulfate compound. Li2O is extracted from the electrode precursors to activate the electrode either by electrochemical methods or by chemical methods. Methods for synthesizing and activating the electrodes, electrochemical cells, and batteries containing such electrodes also are described.
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