Facile synthesis of FeSi4P4 and its Sodium Ion Storage Performance. (1st September 2017)

• Record Type: Journal Article
• Authors: Liu, Qing; Wang, Jinsong; Luo, Yu; Miao, Ling; Yan, Youwei; Xue, Lihong; Zhang, Wuxing
• Is Part Of: Electrochimica acta. Volume 247(2017)
• Page Start: 820
• Page End: 825
• Publication Date: 2017-09-01
• Subjects: FeSi4P4 -- anode -- sodium ion battery -- insertion reaction -- DFT calculation; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2017.07.012
• Languages: English
• ISSNs: 0013-4686

Abstract

Graphical abstract: FeSi4 P4 can deliver a reversible capacity of 180 mAh g −1 at 100 mA g −1 with a capacity retention of 99% after 100 cycles. The sodium storage in FeSi4 P4 is realized via the unusual insertion/extraction reaction. Highlights: Pure FeSi4 P4 is synthesized via a facile ball milling method. FeSi4 P4 anode shows excellent cycling stability and rate ability for SIBs. Insertion/extraction reaction is revealed for FeSi4 P4 electrode. Abstract: FeSi4 P4 has been synthesized by a facile ball-milling method and evaluated as anode in sodium ion battery for the first time. The FeSi4 P4 electrode can deliver a reversible capacity of 180 mAh g −1 at 100 mA g −1 with a capacity retention of 99% after 100 cycles. Experimental data and DFT calculation reveal that the sodium storage in FeSi4 P4 is realized via the unusual insertion/extraction reaction. Our results demonstrate that transition metal phosphosilicides could be potential anode materials for sodium ion batteries.