journal article·2016-12-21

Efficient Synthesis of Graphene Nanoscrolls for Fabricating Sulfur-Loaded Cathode and Flexible Hybrid Interlayer toward High-Performance Li–S Batteries

Yi Guo, Gang Zhao, Naiteng Wu, Yun Zhang, Mingwu Xiang, Bo Wang, Heng Liu, Hao Wu

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Abstract

A modified lyophilization approach is developed and used for highly efficient transformation of 2D graphene oxide sheet into 1D graphene nanoscroll (GNS) with high topological transforming efficiency (∼94%). Because of the unique open tubular structure and large specific surface area (545 m 2 g –1 ), GNS is utilized for the first time as a porous cathode scaffold for encapsulating sulfur with a high loading (81 wt %), and also as a conductive skeleton for assembling MnO 2 nanowires into a flexible free-standing hybrid interlayer, both enabling high-rate and long-life Li–S battery.
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Research context

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Materials Science and Engineering, Sichuan University, Chengdu 610064, P. R. China

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 15001, P.R. China

Funding

Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · Foundation for the Author of National Excellent Doctoral Dissertation of the People's Republic of China · National Natural Science Foundation of China

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