Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 167, Issue 11, Pages -Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1945-7111/aba33b
Keywords
lithium ion batteries; Ni6MnO8; electrochemical performance; Self-sacrificing template
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Scalable preparation of micro/nano binary Ni-Mn oxides with good cyclability and low volume swing is crucial for their practical applications in lithium-ion batteries (LIBs). In this contribution, micro/nano quasi-spheres Ni6MnO8(NMO) has been firstly prepared via a versatile precursor self-sacrificial template method. Compared to the reported approaches, the presented synthetic route is more facile, scalable and lower cost. When cycled against Li/Li+, notably, the resultant NMO micro/nano spheres indicate the safer operation potential and superior electrochemical performances over the commercial graphite anode. A long cyclability (506.9 mAh g(-1)at 1C after 350 cycles) and an excellent rate capability (60 mAh g(-1)at 5C) were achieved, which can be attributed to the structure feature of the micro/nano sphere and a so-called semi-reversible reaction, implying a perspective value for application in high energy-density LIBs.
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