Covalently Connected Carbon Nanostructures for Current Collectors in Both the Cathode and Anode of Li-S Batteries.
A 3D current collector made of covalently connected carbon nanostructures is presented, which can significantly improve battery performance when used as the cathode and/or anode. A Li-S cell assembled using these current collectors, with the cathode loaded with elemental sulfur and the anode loaded with lithium metal, delivers a high-rate capacity of 860 mA h g-1at 12 C.
Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, 230026, China.
Song
S
Jin
School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China.
Sen
S
Xin
Hefei National Laboratory for Physical Sciences at the Microscale and Center for Micro- and Nanoscale Research and Fabrication, University of Science and Technology of China, Hefei, 230026, China.
Linjun
L
Wang
Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, 230026, China.
Zhenzhen
Z
Du
Department of Chemical Physics and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, 230026, China.
Lina
L
Cao
Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, 230026, China.
Jiafeng
J
Chen
School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China.
Xianghua
X
Kong
Material Test and Analysis Lab, Engineering and Materials Science Experiment Center, University of Science and Technology of China, Hefei, 230026, China.
Ming
M
Gong
Department of Chemical Physics and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, 230026, China.
Junling
J
Lu
Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, 230026, China.
Yanwu
Y
Zhu
Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, 230026, China. jihengx@ustc.edu.cn.
Hengxing
H
Ji
Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) Center at the Ulsan National Institute of Science & Technology (UNIST) Campus, Department of Chemistry and School of Materials Science, UNIST, Ulsan, 689-798, South Korea.
Rodney S
RS
Ruoff
Li-S batteries; covalently connected; current collectors; sp2-hybridized carbon nanostructures