MoO2/C hollow nanospheres synthesized by solvothermal method as anode material for lithium-ion batteries
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Adjusting particle size and applying carbon materials as coating layer are promising methods to modify electrode materials and improve the electrochemical performance of lithium-ion batteries. Herein, hollow molybdenum dioxide carbon nanocomposite (MoO2/C) with a diameter of about 150–200 nm was synthesized by a simple solvothermal method–assisted annealing process by using glucose as carbon source and cetyltrimethylammonium bromide (CTAB) as the soft template. The synthesized MoO2/C hollow nanospheres are composed of a number of nanoparticles that are in size of around 20–30 nm and covered by a carbon layer. Coin cells were assembled, and a series of electrochemical measurements indicated that the MoO2/C exhibits good electrochemical performance, high discharge specific capacities of 988.6 mAhg−1 at 100 mAg−1 after 40 cycles and 784.5 mAhg−1 at 500 mAg−1 after 100 cycles are achieved. The excellent electrochemical performance is connected with the combination of nanocrystallization, hollow structural design, and the carbon coating.
KeywordsLithium-ion batteries Solvothermal Nanocomposite MoO2/C Hollow nanospheres
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Conflict of interest
The authors declare that they have no conflict of interest.
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