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Article Abstract

In this work, to improve the cyclability and high-temperature performance of cubic spinel LiMnO (LMO) as cathode materials, Nb-doped LiMnO powders coated and uncoated with AlO and/or BO were synthesized the modified solid-state reaction method. It was found that Nb-doped and BO + AlO-coated LMO powders comprising 5 μm granular agglomerated fine primary particles smaller than 350 nm in diameter exhibited superior electrochemical properties with initial discharge capacity of 101.68 mA h g; we also observed capacity retention of 96.31% after 300 cycles at room temperature (RT) and that of 98% after 50 cycles at 55 °C and 1C rate.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060312PMC
http://dx.doi.org/10.1039/c8ra09407aDOI Listing

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