Electrochemically activated MnO as a cathode material for sodium-ion batteries

Leiting Zhang, Dmitry Batuk, Guohua Chen, Jean Marie Tarascon

Research output: Journal article publicationJournal articleAcademic researchpeer-review

9 Citations (Scopus)

Abstract

Besides classical electrode materials pertaining to Li-ion batteries, recent interest has been devoted to pairs of active redox composites having a redox center and an intercalant source. Taking advantage of the NaPF6salt decomposition above 4.2 V, we extrapolate this concept to the electrochemical in situ preparation of F-based MnO composite electrodes for Na-ion batteries. Such electrodes exhibit a reversible discharge capacity of 145 mAh g− 1at room temperature. The amorphization of pristine MnO electrode after activation is attributed to the electrochemical grinding effect caused by substantial atomic migration and lattice strain build-up upon cycling.
Original languageEnglish
Pages (from-to)81-84
Number of pages4
JournalElectrochemistry Communications
Volume77
DOIs
Publication statusPublished - 1 Apr 2017

Keywords

  • Electrolyte stability
  • In situ synthesis
  • Oxyfluorides
  • Redox composites

ASJC Scopus subject areas

  • Electrochemistry

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