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Preparation of Graphene Liquid Cells for the Observation of Lithium-ion Battery Material
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Low-voltage-hysteresis aluminum-sulfur battery with covalently functionalized mesoporous graphene
Weiqin Chu1,2, Shiman He3, Shiqi Liu1,2
1Institute of Advanced Battery Materials and Devices, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China. hj-yu@bjut.edu.cn.
Abstract:
A pyridyl-functionalized mesoporous graphene is developed to accommodate sulfur for Al-S batteries, which can significantly reduce the voltage hysteresis to ∼0.43 V. The reaction kinetics of the Al-S battery are accelerated by the catalyst-free carbon host, ascribed to both the mesoporous graphene structure and the covalently functionalized pyridyl groups.

