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An iron oxyborate Fe3BO5 material as a high-performance anode for lithium-ion and sodium-ion batteries

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Abstract

An Fe3BO5 anode material synthesized by reducing Fe3BO6 was comprehensively studied for use in both lithium- and sodium-ion batteries. As a lithium-ion battery anode, the obtained Fe3BO5 displays a high initial reversible capacity of 654.7 mA h g−1 (with a coulombic efficiency of 75%) at a current density of 0.1 A g−1 and a favorable cycling performance, with a capacity of 544.6 mA h g−1 at 0.4 A g−1 after 400 cycles. As a sodium-ion battery anode, Fe3BO5 displays initial discharge/charge capacities of 644.6 and 433.6 mA h g−1 at a current density of 0.1 A g−1. Besides this, Fe3BO5 exhibits a stable reversible capacity of about 380 mA h g−1 at 0.4 A g−1 during the first 100 cycles and an excellent rate performance with a high capacity of 304.5 mA h g−1, even at a current density of as large as 4 A g−1. Kinetics analysis shows that the significance in high Na+ capacitive contribution at a high rate should account for the excellent rate performance. The excellent electrochemical properties demonstrate that the Fe3BO5 material could be an effective and promising anode candidate for both lithium- and sodium-ion batteries.

Graphical abstract: An iron oxyborate Fe3BO5 material as a high-performance anode for lithium-ion and sodium-ion batteries

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Publication details

The article was received on 02 Jan 2019, accepted on 29 Mar 2019 and first published on 11 Apr 2019


Article type: Paper
DOI: 10.1039/C9DT00010K
Citation: Dalton Trans., 2019, Advance Article

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    An iron oxyborate Fe3BO5 material as a high-performance anode for lithium-ion and sodium-ion batteries

    Q. Ping, B. Xu, X. Ma, J. Tian and B. Wang, Dalton Trans., 2019, Advance Article , DOI: 10.1039/C9DT00010K

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