Highly efficient, fast and reversible multi-electron reaction of Na3MnTi(PO4)3 cathode for sodium-ion batteries

By Huangxu Li, Ming Xu, Chunhui Gao, Wei Zhang, Zhian Zhang, Y. Lai, Lifang Jiao. 2020

186 citations recorded by the source corpus.

Abstract The sodium super ionic conductor (NASICON) structured Na3MnTi(PO4)3 is attractive due to the eco-friendly and low-cost Na–Mn–Ti–P–O system. However, Na3MnTi(PO4)3 suffers from low Coulombic efficiency, inferior electronic conductivity and limited specific capacity basing on two-sodium-exchange. To address these multifaceted issues, herein, an interpenetrating graphene encapsulated Na3MnTi(PO4)3 particles with carbon-shell covering material (rGO@NMTP-C) was synthesized. By regulating cut-off voltages, a three-electron reaction was realized and Coulombic efficiency of the rGO@NMTP-C was found to increase from

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/ed02af93958b3ae93dc5675758a08b08e33a427e