Abstract
The cycle stability of Li(Ni0.8Co0.1Mn0.1)O2 is enhanced obviously by titanium doping via a facile solid-state method. The property of crystal structure is evaluated by XRD, which illustrates the samples possessed a layered α-NaFeO2 structure with R-3m space group. According to the charge/discharge studies, the capacity retention of pristine sample is around 51% after 125 cycles at 5 C, and the sample with Ti dopant displays a good cyclic stability, after 125 cycles, the capacity retention increases to 75% under 5 C, suggesting it could be possibly applied in fast charge Lithium-ion battery area. The superb electrochemical performance might be attributed to the Ti4+ occupy the layer structure to broaden the Lithium-ion channel, which is benefit to lithium intercalation and deintercalation during cycling.
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This work was supported by the National Natural Science Foundation of China (Nos. 1474057, 51774076 and 51704063) and the Fundamental Research Funds for the Central Universities (N162502003).
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Li, J., Li, Y., Guo, Y. et al. A facile method to enhance electrochemical performance of high-nickel cathode material Li(Ni0.8Co0.1Mn0.1)O2 via Ti doping. J Mater Sci: Mater Electron 29, 10702–10708 (2018). https://doi.org/10.1007/s10854-018-9093-1
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DOI: https://doi.org/10.1007/s10854-018-9093-1