Synthesis of porous CoMoO4 nanorods as a bifunctional cathode catalyst for a Li-O2 battery and superior anode for a Li-ion battery

Liangjun Wang; Xinhang Cui; Lili Gong; Zhiyang Lyu; Yin Zhou; Wenhao Dong; Jia Liu; Min Lai; Fengwei Huo; Wei Huang; Ming Lin; Wei Chen

doi:10.1039/c7nr00178a

Synthesis of porous CoMoO₄ nanorods as a bifunctional cathode catalyst for a Li-O₂ battery and superior anode for a Li-ion battery

Nanoscale. 2017 Mar 17;9(11):3898-3904. doi: 10.1039/c7nr00178a.

Authors

Liangjun Wang¹, Xinhang Cui², Lili Gong², Zhiyang Lyu³, Yin Zhou³, Wenhao Dong³, Jia Liu⁴, Min Lai⁵, Fengwei Huo⁶, Wei Huang⁶, Ming Lin⁷, Wei Chen⁸

Affiliations

¹ 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. phycw@nus.edu.sg.
² Department of Physics, National University of Singapore, 2 Science Drive 3, 117542, Singapore. phycw@nus.edu.sg.
³ Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
⁴ Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.
⁵ School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu, China.
⁶ Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, P.R. China.
⁷ Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way. Innovis, 138634, Singapore.
⁸ Department of Physics, National University of Singapore, 2 Science Drive 3, 117542, Singapore. phycw@nus.edu.sg and Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore and Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore and SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, Shenzhen University, Shenzhen 518060, China and National University of Singapore (Suzhou) Research Institute, Suzhou, 215123, China.

PMID: 28261709
DOI: 10.1039/c7nr00178a

Abstract

We report the synthesis of porous CoMoO₄ nanorods and their applications in lithium oxygen (Li-O₂) and lithium ion (Li-ion) batteries. The unique porous structures of CoMoO₄ nanorods can promote the permeation of electrolyte and benefit the transport of lithium ion. When employed as the cathode catalyst for a Li-O₂ battery, CoMoO₄ nanorods deliver an improved discharge capacity (4680 mA h g^-1), lower charge potential and better cycle stability (41 cycles at 500 mA h g^-1 capacity limit) compared with the bare carbon. When employed as an anode in Li-ion batteries, CoMoO₄ nanorods can retain a capacity of 603 mA h g^-1 after 300 cycles (400 mA g^-1) and exhibit excellent rate capability.