Long-life, high-efficiency lithium/sulfur batteries from sulfurized carbon nanotube cathodes

Author:

Yan Jianhua12345,Liu Xingbo6345,Wang Xianfeng12345,Li Bingyun12345

Affiliation:

1. Biomaterials, Bioengineering & Nanotechnology Laboratory

2. Department of Orthopaedics

3. West Virginia University

4. Morgantown

5. USA

6. Department of Mechanical and Aerospace Engineering

Abstract

Sulfurized carbon nanotubes (SCNT) with a high sulfur content (68%) have been produced with a unique method. Li–S cells comprised of the developed SCNT cathodes presented a long cycle life exceeding 1300 cycles and an extremely low capacity decay rate (0.025% per cycle) at 1/3 C rate. Moreover, their Coulombic efficiency was higher than 95.5%.

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment,General Chemistry

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