Eldfellite-type cathode material, NaV(SO₄)₂, for Na-ion batteries

Abstract

In this research, an eldfellite-type material containing V as a transition metal, NaV(SO4)2, was investigated to achieve higher potentials and capacities through the use of a multi-redox pair. Average working...

Revealing the effect of conductive carbon materials on the sodium storage performance of sodium iron sulfate

“…[8][9][10][11][12] Until now, they have been be specically classied into olivine-type materials, 13,14 NASICON materials, [15][16][17][18] pyrophosphate materials, [19][20][21][22][23] and sulfate-based materials. [24][25][26][27][28] Iron-based sulfate materials with the merits of low cost and high operation voltage have been considered promising candidates for SIBs. A representative iron-based sulfate, Na 2 Fe 2 (SO 4 ) 3 (NFS), was rst reported as a 3.8 V (vs. Na + /Na) cathode material for SIBs by Yamada's group in 2014, 29 and exhibits a high energy density.…”