LiMn0.97Al0.03O2Based Carbon Fiber Electrode Possessing High Rate Capabilities for Li-Ion Batteries

Herein, a binder-free electrode structure using carbon fibers as the current collector is reported. To achieve a binder free environment, Li(Mn0.97Al0.03)O2was directly grown on carbon fibers using a two-steps strategy involving electroplating and hydrothermal treatment. The resulting Li(Mn0.97Al0.03)O2carbon fiber electrodes function as 3V class cathode (vs. Li+/Li). In particular, the electrode obtained with thinner Li(Mn0.97Al0.03)O2nano-arrays exhibited an improved high rate performance as compared to the electrode with thicker Li(Mn0.97Al0.03)O2arrays.