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Synthesis and characterization of the LiMnBO3-LiCoBO3 solid solution and its use as a lithium-ion cathode material

Abstract : A complete solid solution of m-Li(Mn1-xCox)BO3 has been successfully synthesized for the first time with the idea of improving the average potential versus m-LiMnBO3. These compounds have been obtained by a multiple-step process. Interestingly, transmission electron microscopy results indicate that the C2/c space group previously reported for m-LiMBO3 (M = Mn, Co) cannot describe m-Li(Mn1-xCox)BO3 compounds. Each material shows electrochemical activity, without in situ carbon coating. Despite a large polarization, we report a capacity of almost 60 mAh/g at the first discharge at C/20 rate with good stability up to five cycles for LiMn0.7Co0.3BO3. © 2015 American Chemical Society.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02184148
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Submitted on : Monday, July 15, 2019 - 6:05:41 PM
Last modification on : Tuesday, July 16, 2019 - 1:28:02 AM

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B. Le Roux, C. Bourbon, O.I. Lebedev, J.-F. Colin, V. Pralong. Synthesis and characterization of the LiMnBO3-LiCoBO3 solid solution and its use as a lithium-ion cathode material. INORGANIC CHEMISTRY, 2015, 54 (11), pp.5273-5279. ⟨10.1021/acs.inorgchem.5b00260⟩. ⟨hal-02184148⟩

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