Xiao Yinglin, Zai Jiantao, Tian Bingbing, Qian Xuefeng
1SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060 People's Republic of China.
2School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240 People's Republic of China.
Nanomicro Lett. 2017;9(3):34. doi: 10.1007/s40820-017-0127-7. Epub 2017 Feb 21.
A NiFeO/expanded graphite (NiFeO/EG) nanocomposite was prepared via a simple and inexpensive synthesis method. Its lithium storage properties were studied with the goal of applying it as an anode in a lithium-ion battery. The obtained nanocomposite exhibited a good cycle performance, with a capacity of 601 mAh g at a current of 1 A g after 800 cycles. This good performance may be attributed to the enhanced electrical conductivity and layered structure of the EG. Its high mechanical strength could postpone the disintegration of the nanocomposite structure, efficiently accommodate volume changes in the NiFeO-based anodes, and alleviate aggregation of NiFeO nanoparticles.
通过一种简单且低成本的合成方法制备了镍铁氧化物/膨胀石墨(NiFeO/EG)纳米复合材料。以将其用作锂离子电池的阳极材料为目标,对其储锂性能进行了研究。所制备的纳米复合材料表现出良好的循环性能,在800次循环后,电流为1 A g时容量为601 mAh g。这种良好的性能可能归因于膨胀石墨增强的导电性和层状结构。其高机械强度可以延缓纳米复合材料结构的解体,有效适应镍铁氧化物基阳极中的体积变化,并减轻镍铁氧化物纳米颗粒的聚集。