Zero-strain Na4Fe7(PO4)6 as a novel cathode material for sodium–ion batteries. Issue 61 (11th July 2019)

• Record Type: Journal Article
• Authors: Pu, Xiangjun; Rong, Chao; Tang, Shenglong; Wang, Huiming; Cao, Shunan; Ding, Yan; Cao, Yuliang; Chen, Zhongxue
• Is Part Of: Chemical communications. Volume 55:Issue 61(2019)
• Page Start: 9043
• Page End: 9046
• Publication Date: 2019-07-11
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c9cc04136b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We report for the first time a zero-strain cathode, Na4 Fe7 (PO4 )6, for sodium–ion batteries (SIBs). Abstract : We report for the first time a zero-strain cathode, Na4 Fe7 (PO4 )6, for sodium–ion batteries (SIBs). This new iron-based polyanionic cathode delivers a reversible capacity of 66.5 mA h g −1 at 5 mA g −1 with almost 100% capacity retention over 1000 cycles under 200 mA g −1, and the outstanding performance benefits from single-phase-transition processes with a tiny volume change of only ∼0.24%.