LMFP cathode materials with improved electrochemical performance
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United States of America Patent
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Feb 12, 2019
Grant Date -
Feb 8, 2018
app pub date -
Oct 10, 2017
filing date -
Dec 21, 2012
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Abstract
Particulate LMFP cathode materials having high manganese contents and small amounts of dopant metals are disclosed. These cathode materials are made by milling a mixture of precursor materials in a wet or dry milling process. Preferably, off-stoichiometric amounts of starting materials are used to make the cathode materials. Unlike other high manganese LMFP materials, these cathode materials provide high specific capacities, very good cycle life and high energies even at high discharge rates.
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