Mechanistic insights into sodium storage in hard carbon anodes using local structure probes

Research output: Contribution to journalArticlepeer-review

Authors

  • Joshua M. Stratford
  • Phoebe Allan
  • Oliver Pecher
  • Philip A. Chater
  • Clare P. Grey

Colleges, School and Institutes

External organisations

  • University of Cambridge
  • Diamond Light Source

Abstract

Operando23Na solid-state NMR and pair distribution function analysis experiments provide insights into the structure of hard carbon anodes in sodium-ion batteries. Capacity results from "diamagnetic" sodium ions first adsorbing onto pore surfaces, defects and between expanded layers, before pooling into larger quasi-metallic clusters/expanded carbon sheets at lower voltages.

Details

Original languageEnglish
Pages (from-to)12430-12433
Number of pages4
JournalChemical Communications
Volume52
Issue number84
Publication statusPublished - 22 Sep 2016