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La-doping and carbon-coating collaboratively enhance the cycling and rate properties of LiFeBO3 for Li-ion battery
Chemical Physics Letters ( IF 1.901 ) Pub Date : 2020-01-07 , DOI: 10.1016/j.cplett.2020.137090
Lei Ming; Bao Zhang; Chunhui Wang; Xing Ou; Jiafeng Zhang; Zhanhong Yang

The component-optimal LiFe1-xLaxBO3@C materials with carbon-coating and La-doping have been synthesized by the mechanical milling and post-calcination. In this co-modified LiFe1-xLaxBO3@C, the synergistic effect of high-stability LiFe1-xLaxBO3 and superior-conductive carbon network, provides a stable framework to restrain the structure pulverization and enhances the electron conductivity simultaneously, effectively improving the Li+-storage capability. When served as the cathode of Li-ion battery, the LiFe0.99La0.01BO3@C shows the best battery performance, exhibiting a discharge capacity of 104.1 mA h g-1 at a current density of 40 mA g-1. As expected, the strategy of La-doping and carbon-coating could effectively enhance cycling and rate performances of LiFeBO3.
更新日期:2020-01-07

 

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