Abstract
[Formula: see text] samples were obtained via high-temperature ball milling route with different mixing processes. Ultrasonic radiation and wet mechanical agitation were used as mixing processes, respectively. The effects of different mixing processes on the structure and electrochemical performance of [Formula: see text] were investigated. The results exhibited that [Formula: see text] prepared by high-temperature ball milling with ultrasonic irradiation as mixing processes displayed the best rate capability and cycle stability among all the samples: it delivered discharge capacities of [Formula: see text] (0.1 C), [Formula: see text] (5.0 C) and [Formula: see text] (10 C) [Formula: see text], respectively. The discharge capacity was [Formula: see text] [Formula: see text] at 0.5 C-rate over 100 cycles with capacity retention of 95.0%. It is concluded that ultrasonic irradiation is an effective mixing process for the preparation of [Formula: see text] cathode material via high-temperature ball milling route.
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