Facile synthesis of graphite nitrate-like ammonium vanadium bronzes and their graphene composites for sodium-ion battery cathodes

Hailong Fei, Huan Li, Zhiwei Li, Wenjing Feng, Xin Liu, Mingdeng Wei

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

A simple and versatile method for preparation of new crystalline graphite nitrate-like ammonium vanadium bronze (NH4)0.19V2O5·0.44H2O nano-microstructures is developed via a simple hydrothermal route following heat treatment. (NH4)0.19V2O5·0.44H2O platelets are tested as a novel high-energy cathode material for sodium-ion batteries. The enhancement of electrochemical performance for a (NH4)0.19V2O5·0.44H2O platelet electrode is offered by addition of graphene and using graphite nitrate-like ammonium vanadium bronze microflowers. A graphene-based graphite nitrate-like vanadium bronze microflower composite shows a higher discharge capacity of 208.9 A h g-1 for the second cycle in a 1.5-3.4 V voltage limit at a discharge current density of 20 mA g-1. The reversible capacity of 141.5 A h g-1 remained after 40 cycles.

Original languageEnglish
Pages (from-to)16522-16527
Number of pages6
JournalDalton Transactions
Volume43
Issue number43
DOIs
Publication statusPublished - Nov 21 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

Fingerprint

Dive into the research topics of 'Facile synthesis of graphite nitrate-like ammonium vanadium bronzes and their graphene composites for sodium-ion battery cathodes'. Together they form a unique fingerprint.

Cite this