An iron oxyborate Fe3BO5 material as a high-performance anode for lithium-ion and sodium-ion batteries. Issue 17 (11th April 2019)

• Record Type: Journal Article
• Authors: Ping, Qiushi; Xu, Beibei; Ma, Xiao; Tian, Jianliya; Wang, Baofeng
• Is Part Of: Dalton transactions. Volume 48:Issue 17(2019)
• Page Start: 5741
• Page End: 5748
• Publication Date: 2019-04-11
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c9dt00010k
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : The surface pseudocapacitance contribution is dominant in Na + storage processes in favour of the high rate performance of Fe3 BO5 . Abstract : An Fe3 BO5 anode material synthesized by reducing Fe3 BO6 was comprehensively studied for use in both lithium- and sodium-ion batteries. As a lithium-ion battery anode, the obtained Fe3 BO5 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, Fe3 BO5 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, Fe3 BO5 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 Fe3 BO5 material could be an effective and promising anode candidate for both lithium- and sodium-ion batteries.