Binder-Free N- and O-Rich Carbon Nanofiber Anodes for Long Cycle Life K-Ion Batteries
By Adams, Ryan A.; Syu, Jia-Min; Zhao, Yunpu; Lo, Chieh-Tsung; Varma, Arvind; Pol, Vilas G.
Published in ACS Applied Materials & Interfaces
NULL
2017
Abstract
Carbon nanofibers produced by electrospinning of polyacrylonitrile polymer and subsequent carbonization were tested as freestanding potassium-ion anodes. The effect of oxygen functionalization on K-ion carbon anode performance was tested for the first time via plasma oxidation of prepared carbon nanofibers. The produced materials exhibited exceptional cycling stability through the amorphous carbon structuring and one-dimensional architecture accommodating significant material expansion upon K+ intercalation, resulting in a stable capacity of 170 mAh g
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