Journal
JOURNAL OF ENERGY CHEMISTRY
Volume 54, Issue -, Pages 587-594Publisher
ELSEVIER
DOI: 10.1016/j.jechem.2020.06.015
Keywords
Tungsten acid-linked polyaniline; 2D material; Fluid-in-solid; Lithium-ion capacitor; Volumetric
Funding
- Australian Research Council [DP190101008, FT190100058]
- ARC ITRP [IH180100020]
- UNSW Scientia Program
- UNSW-SJTU joint grant
- UNSW Digital Grid Futures Institute, UNSW, Sydney
- Australian Research Council [FT190100058] Funding Source: Australian Research Council
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In this study, a two-dimensional layered tungstate acid-linked polyaniline (TALP) with a fluid-in-solid structure showed excellent performance in high-rate and stable energy storage.
Two-dimensional (2D) layered materials are widely applied in energy devices including lithium-ion battery and supercapacitor due to their unique properties, such as tunable interlayer structure, numerous active sites, large aspect ratio versatile interlayer chemistry. In this work, 2D layered tungstate acid-linked polyaniline (TALP) presented a fluid-in-solid structure, which allowed facile exchange of the interlayer fluid from moisture to conventional Li+ containing electrolyte. With fast and stable dual ion storage (Li+ and PF6), TALP demonstrates high-rate volumetric capacity (39 mAh cm(-3) at 2000 mA g(-1)) and good stability (2000 cycles at 200 mA g(-1)) within the working potential window of 1.5-4.5 V versus Li+/Li. (C) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
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