Journal
CERAMICS INTERNATIONAL
Volume 40, Issue 7, Pages 11377-11380Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.02.108
Keywords
Cathode material; Chemical bath deposition; Cobalt oxide nanowires; Lithium ion battery
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Funding
- National Natural Science Foundation of China [51302324, 51272290, 51072233]
- Fundamental Research Funds for the Central Universities of Central South University [2013zzts028]
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In this report, Co3O4 nanowires on nickel foam substrate are synthesized by a facile chemical bath deposition route under a mild condition. The prepared Co3O4 is tightly anchored with Ni foam with a large BET surface area of 20.7 m(2) g(-1), providing good contact between electrode and electrolyte and thus improving the electron and Li+ transmission. As a result, the fabricated Co3O4 nanowires on nickel foam directly as conductive agent- and binder-free electrode for lithium ion batteries show superior electrochemical performance. When cycled at the current density of 0.2 A g(-1), it delivers an initial reversible specific capacity of 944 mAh g(-1) with a coulombic efficiency of 71.7%, and shows almost no capacity fading during 100 cycles. As performed at 4.0 A g(-1), it can also show 663 mAh g(-1) capacity. (c) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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