Long cycle life microporous spherical carbon anodes for sodium-ion batteries derived from furfuryl alcohol

Autor: Henry C. Foley, Vilas G. Pol, Christopher S. Johnson, Maryam Peer, Jacob Jorne, Dehua Zhou, Zhenzhen Yang, Fulya Dogan Key
Rok vydání: 2016
Předmět:
Zdroj: Journal of Materials Chemistry A. 4:6271-6275
ISSN: 2050-7496
2050-7488
DOI: 10.1039/c6ta00242k
Popis: Spherical micron-sized carbon powders were synthesized from feedstock furfuryl alcohol and tested as anodes in sodium ion batteries (SIBs). A long cycle life of 1000 cycles is achievable with this carbon at C rate (3–4 mg cm−2 loading and i = 200 mA g−1) yielding a steady capacity of ca. 115 mA h g−1. The results from solid-state 23Na MAS NMR analyses of cycled electrodes indicate no correlation in voltage profiles with sodium site nature (graphene or nanopores), which is a new observation in SIB carbon anodes.
Databáze: OpenAIRE