MULTIVALENT METAL SALTS FOR LITHIUM ION CELLS HAVING OXYGEN CONTAINING ELECTRODE ACTIVE MATERIALS
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United States of America Patent
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Issued Date -
Mar 16, 2017
app pub date -
Mar 5, 2015
filing date -
Mar 5, 2014
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Abstract
A material and method for a surface-treated electrode active material for use in a lithium ion battery is provided. The surface-treated electrode active material includes an ionically conductive layer comprising a multivalent metal present as a direct conformal layer on at least a portion of the outer surface of the electrode active material. The surface-treated electrode active material improves the capacity retention and cycle life as well as reduces undesirable reactions at the surface of the electrode active material.
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