Hard carbon as a negative electrode material for potassium-ion batteries prepared with high yield through a polytetrafluoroethylene-based precursor

A new additive (polytetrafluoroethylene, PTFE) to typical sugar precursors for hard carbon (HC) preparation via hydrothermal carbonization has been proposed and investigated. The HC samples obtained from sugars (D-glucose and pectin) with and without PTFE were characterized with X-ray powder diffrac...

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Bibliographic Details
Published in:Carbon trends 2021-10, Vol.5, p.100089, Article 100089
Main Authors: Abramova, Elena N., Marat, Nazerke, Rupasov, Dmitry P., Morozova, Polina A., Kirsanova, Maria A., Abakumov, Artem M.
Format: Article
Language:English
Subjects:
Electrode materials
Hard carbon
Negative electrode
Potassium-ion batteries
Synthesis
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Summary:A new additive (polytetrafluoroethylene, PTFE) to typical sugar precursors for hard carbon (HC) preparation via hydrothermal carbonization has been proposed and investigated. The HC samples obtained from sugars (D-glucose and pectin) with and without PTFE were characterized with X-ray powder diffraction, Raman spectroscopy, scanning and transmission electron microscopy, energy-dispersive X-ray and electron energy loss spectroscopy, specific surface area measurements. Adding PTFE to sugars significantly improves the HC yield from
ISSN:2667-0569
2667-0569
DOI:10.1016/j.cartre.2021.100089