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- Title
Plasma-Enhanced Carbon Nanotube Fiber Cathode for Li-S Batteries.
- Authors
Fang, Yanbo; Hsieh, Yu-Yun; Khosravifar, Mahnoosh; Adusei, Paa Kwasi; Kanakaraj, Sathya Narayan; Stockman, Bely; Kondapalli, Vamsi Krishna Reddy; Shanov, Vesselin
- Abstract
Fiber-shaped batteries have attracted much interest in the last few years. However, a major challenge for this type of battery is their relatively low energy density. Here, we present a freestanding, flexible CNT fiber with high electrical conductivity and applied oxygen plasma-functionalization, which was successfully employed to serve as an effective cathode for Li-S batteries. The electrochemical results obtained from the conducted battery tests showed a decent rate capability and cyclic stability. The cathode delivered a capacity of 1019 mAh g−1 at 0.1 C. It accommodated a high sulfur loading of 73% and maintained 47% of the initial capacity after 300 cycles. The demonstrated performance of the fiber cathode provides new insights for the designing and fabrication of high energy density fiber-shaped batteries.
- Subjects
LITHIUM sulfur batteries; CARBON fibers; CARBON nanotubes; CATHODES; ELECTRIC conductivity; ENERGY density
- Publication
C, 2022, Vol 8, Issue 2, p30
- ISSN
2311-5629
- Publication type
Article
- DOI
10.3390/c8020030