合成多孔 CoMoO 纳米棒作为 Li-O 电池的双功能阴极催化剂和 Li 离子电池的优异阳极。
Synthesis of porous CoMoO nanorods as a bifunctional cathode catalyst for a Li-O battery and superior anode for a Li-ion battery.
机构信息
School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu, China and Department of Physics, National University of Singapore, 2 Science Drive 3, 117542, Singapore.
Department of Physics, National University of Singapore, 2 Science Drive 3, 117542, Singapore.
出版信息
Nanoscale. 2017 Mar 17;9(11):3898-3904. doi: 10.1039/c7nr00178a.
We report the synthesis of porous CoMoO nanorods and their applications in lithium oxygen (Li-O) and lithium ion (Li-ion) batteries. The unique porous structures of CoMoO nanorods can promote the permeation of electrolyte and benefit the transport of lithium ion. When employed as the cathode catalyst for a Li-O battery, CoMoO nanorods deliver an improved discharge capacity (4680 mA h g), lower charge potential and better cycle stability (41 cycles at 500 mA h g capacity limit) compared with the bare carbon. When employed as an anode in Li-ion batteries, CoMoO nanorods can retain a capacity of 603 mA h g after 300 cycles (400 mA g) and exhibit excellent rate capability.
我们报告了多孔 CoMoO 纳米棒的合成及其在锂氧（Li-O）和锂离子（Li-ion）电池中的应用。CoMoO 纳米棒的独特多孔结构可以促进电解质的渗透，有利于锂离子的传输。当用作锂氧电池的阴极催化剂时，CoMoO 纳米棒表现出比裸碳更高的放电容量（4680 mA h g）、更低的充电电位和更好的循环稳定性（在 500 mA h g 容量限制下循环 41 次）。当用作锂离子电池的阳极时，CoMoO 纳米棒在 300 次循环后（400 mA g）仍能保持 603 mA h g 的容量，且表现出优异的倍率性能。
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