Positive electrode active materials with composite coatings for high energy density secondary batteries and corresponding processes
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United States of America
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May 21, 2024
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app pub date -
Jan 22, 2021
filing date -
Jan 22, 2021
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Abstract
A composite coated form of lithium cobalt oxide is described that can achieve improved cycling at higher voltages. Liquid phase and combined liquid and solid phase coating processes are described to effectively form the composite coated powders. The improved cycling positive electrode materials can be effectively combined with either graphitic carbon negative electrode active materials or silicon based high capacity negative electrode active materials. Improved battery designs can achieve very high volumetric energy densities in practical battery formats and with reasonable cycling properties.
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