Abstract
Abstract A peanut-like hierarchical nano/micro architecture LiNi0.5Co0.2Mn0.3O2 cathode material has been successfully prepared by a simple hydrothermal method combined with a high-temperature calcination process. The characterization results show that the H-NCM has high crystallinity, smaller particle size, uniform particle size distribution, higher specific surface area, lower charge transfer resistance and higher lithium ion diffusion coefficient, which are can facilitate its electrochemical properties. The electrochemical test results reveal that the H-NCM material with peanut-like morphology displayed a higher discharge capacity of 176.5 mA h g−1 and 159.9 mA h g−1 at 0.2C and 10C rates, respectively. And exhibited better cycling stability with capacity retention of 90.0% even at 10C rate after 100 cycles. Meanwhile, the H-NCM cathodes exhibited good practical application performances in commercial with exhibit initial discharge capacity of 2084.2 mA h at 1C rate and capacity retention of 92.17% after 500 cycles.
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