Fabrication of 1D mesoporous NiO nano-rods as high capacity and long-life anode material for lithium ion batteries

In the present work, one-dimensional porous NiO nano-rods as an anode material were synthesized using facile hydrothermal synthesis method to improve the electrochemical performance for LIBs application. The NiO nano-rods were typically several hundred nanometers in length, which are composed by loosely stacked nanoparticles. It is believed that the obtained architecture with mesoporous structure can ensure rapid electrons/ions transfer, penetration of the electrolyte to the electrode surfaces and buffer the volume expansion of NiO during charge/discharge processes. When evaluated as anode material, the NiO nano-rods exhibit excellent rate performance and long-life cycling performance with high reversibility. The porous NiO nano-rods exhibit a capacity of 1029.3 mA h g(-1) at 1C up to 100 cycles and even retains a reversible capacity of 548.4 mA h g(-1) at 4C after 80 cycles. Thus, it is believed that the current strategy can be applicable to improve the electrochemical performances of various metal oxide electrodes in rechargeable secondary battery. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

One-dimensional porous NiO nano-rods were synthesized using hydrothermal synthesis method, showing excellent electrochemical performance with good rate capability and long cycling stability.