Resolving the relationship between composition and structure in the synthesis of lithium rich nickel manganese oxides
The rapid transition towards practical and accessible electromobility has been driven by improvements in lithium-ion batteries (LIBs). These batteries enable high energy and power densities with respect to both volume and weight compared to other secondary energy storage systems. The cathode material in these batteries is most commonly composed of layered transition metal oxide materials which reversibly intercalate lithium as the battery is charged and discharged. For high energy density applications, increasing the nickel content in these materials is desirable to improve the specific capacity, however this results in poor capacity retention after extended cycling. Having successfully studied the synthesis of the LiNiO2 end-member in real-time, using NPD at ILL (D20, proposal 5-25-272) we wish to continue exploring further regions of the Li-Ni-Mn-O phase diagram to better understand the synthesis of other Ni-rich layered oxides based on their Ni:Mn ratio and resolve the direct relation between material composition and structure as a function of temperature.
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GOONETILLEKE Damian; BIANCHINI Matteo; BREZESINSKI Torsten; DUFFIET Marie; Thomas C. Hansen and SUARD Emmanuelle. (2021). Resolving the relationship between composition and structure in the synthesis of lithium rich nickel manganese oxides. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-04-232
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