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

DOI: 10.1039/C6CC06990H DOI Help
Data DOI: 10.17863/CAM.4587 Data DOI Help

Authors: Joshua M. Stratford (University of Cambridge) , Phoebe K. Allan (University of Cambridge, Diamond Light Source) , Oliver Pecher (University of Cambridge) , Philip A. Chater (Diamond Light Source) , Clare P. Grey (University of Cambridge)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chem. Commun. , VOL 52 , PAGES 12430-12433

State: Published (Approved)
Published: September 2016
Diamond Proposal Number(s): 8840 , 13681

Open Access Open Access

Abstract: Operando 23Na 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.

Journal Keywords: PDF, NMR, Electrochemistry

Subject Areas: Chemistry, Materials, Energy


Instruments: I15-1-X-ray Pair Distribution Function (XPDF) , I15-Extreme Conditions

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c6cc06990h.pdf