Affiliation:
1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
2. Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
Abstract
Abstract
Lithium–sulfur battery is a promising energy storage device because of its high theoretical specific energy density, low cost, and environmental friendliness. Here, we prepared nitrogen-doped hierarchically porous carbon nanosheets (N-PCNS) by NaCl salt-assisted one-pot pyrolysis strategy, using NaCl, glucose, and melamine as template, carbon and nitrogen as source. Using N-PCNS hosted sulfur composite material (N-PCNS/S) as the cathode material of the lithium–sulfur battery, the first specific discharge capacity at 0.2 C is 956.7 mA h g−1, and the reversible capacity after 100 cycles is 625.9 mA h g−1, with the capacity loss of 0.34% per cycle. At the high rate of 0.5 C, the specific capacity of the first discharge is still 717.3 mA h g−1. This study provides a simple and feasible strategy for the preparation of cathode materials for lithium–sulfur batteries.
Funder
Analysis and Testing Foundation of Kunming University of Science and Technology
National Natural Science Foundation of China
Subject
Mechanical Engineering,Mechanics of Materials,Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献