Porous Carbon/Se Composite Derived from Pistachio Shell as High-performance Li-Se Battery Cathode
- 15 July 2021
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 50 (10), 1797-1800
- https://doi.org/10.1246/cl.210314
Abstract
Pistachio shell derived porous carbon with large amount of micropores is fabricated via a straightforward chemical activation and used as a selenium host material for lithium-selenium batteries. The as-obtained Se/carbon cathode displays a first discharge capacity of 713.1 mAh g−1 and displays a superior reversible capacity of 422.3 mAh g−1 after 100th cycle at 0.2 C (1C = 675 mA g−1). Furthermore, at a large rate of 10 C (6.75 A g−1), it still displays a reversible capacity of 221.2 mAh g−1. Such unique porous carbon as a selenium host material with superior electrochemical performances suggests great potential for the practical application of the Li-Se batteries.Keywords
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