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Synthesis of porous CoMoO4 nanorods as a bifunctional cathode catalyst for a Li-O-2 battery and superior anode for a Li- ion battery

TitleSynthesis of porous CoMoO4 nanorods as a bifunctional cathode catalyst for a Li-O-2 battery and superior anode for a Li- ion battery
Publication TypeJournal Article
Year of Publication2017
AuthorsWang, Liangjun, Cui Xinhang, Gong Lili, Lyu Zhiyang, Zhou Yin, Dong Wenhao, Liu Jia, Lai Min, Huo Fengwei, Huang Wei, Lin Ming, and Chen Wei
JournalNanoscale
Volume9
Pagination3898–3904
Date Published2017
ISSN2040-3364
Keywordsair batteries, carbon, electrochemical performance, facile synthesis, Graphene oxide, high-performance anode, hollow microspheres, hydrothermal synthesis, lithium-oxygen batteries, long-life
Abstract

We report the synthesis of porous CoMoO4 nanorods and their applications in lithium oxygen (Li-O-2) 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-O-2 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.

DOI10.1039/c7nr00178a

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