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Published in: Rare Metals 1/2023

05-10-2022 | Original Article

Porous current collector enables carbon superior electrochemical performance for K-ion capacitors

Authors: Mei-Qi Liu, Hui-Ming Li, Zai-Yuan Le, Jin-Fu Zhao, Li-Min Chang, Luan Fang, Mei-Qi Hou, Hai-Rui Wang, Tian-Hao Xu, Ping Nie

Published in: Rare Metals | Issue 1/2023

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Abstract

The current collector is an indispensable component in potassium-ion hybrid capacitors, which not only provides mechanical support to load electrode materials, but also collects and outputs the current generated. Herein, we investigate the effect of three different current collectors on the electrochemical properties of potassium ion capacitors using carbon black anode as a demonstration. Because of better adhesion and lower charge transfer resistance, the specific capacity of half-cells assembled using three-dimensional (3D) porous copper foil (PCu) and copper as current collector is better than that of Al foil, which stabilizes at 138.2 and 132.8 mAh·g−1 after 100 cycles at 0.05 A·g−1. The potassium-ion capacitor assembled using PCu exhibits an excellent energy/power density of 86.1 Wh·kg−1 and 4000 W·kg−1, respectively. This work will boost the rational design and provide an effective strategy to improve the performance of potassium-ion capacitors.

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Appendix
Available only for authorised users
Literature
[5]
go back to reference Luo XX, Li WH, Liang HJ, Zhang HX, Du KD, Wang XT, Liu XF, Zhang JP, Wu XL. Covalent organic framework with highly accessible carbonyls and π-cation effect for advanced potassium-ion batteries. Angew. Chem., Int. Ed. 2022;134(10): e202117661. https://doi.org/10.1002/ange.202117661. Luo XX, Li WH, Liang HJ, Zhang HX, Du KD, Wang XT, Liu XF, Zhang JP, Wu XL. Covalent organic framework with highly accessible carbonyls and π-cation effect for advanced potassium-ion batteries. Angew. Chem., Int. Ed. 2022;134(10): e202117661. https://​doi.​org/​10.​1002/​ange.​202117661.
[13]
go back to reference Zhao S, Liu Z, Xie G, Guo X, Guo Z, Song F, Li G, Chen C, Xie X, Zhang N, Sun B, Guo S, Wang G. Achieving high-performance 3D K+-pre-intercalated Ti3C2Tx MXene for potassium-ion hybrid capacitors via regulating electrolyte solvation structure. Angew. Chem., Int. Ed. 2021;60(50):26246. https://doi.org/10.1002/anie.202112090. Zhao S, Liu Z, Xie G, Guo X, Guo Z, Song F, Li G, Chen C, Xie X, Zhang N, Sun B, Guo S, Wang G. Achieving high-performance 3D K+-pre-intercalated Ti3C2Tx MXene for potassium-ion hybrid capacitors via regulating electrolyte solvation structure. Angew. Chem., Int. Ed. 2021;60(50):26246. https://​doi.​org/​10.​1002/​anie.​202112090.
[26]
go back to reference Liang HJ, Hou BH, Li WH, Ning QL, Yang X, Gu ZY, Nie XJ, Wang G, Wu XL. Staging Na/K-ion de-/intercalation of graphite retrieved from spent Li-ion batteries: in operando X-ray diffraction studies and an advanced anode material for Na/K-ion batteries. Energy Environ Sci. 2019;12(12):3575. https://doi.org/10.1039/C9EE02759A.CrossRef Liang HJ, Hou BH, Li WH, Ning QL, Yang X, Gu ZY, Nie XJ, Wang G, Wu XL. Staging Na/K-ion de-/intercalation of graphite retrieved from spent Li-ion batteries: in operando X-ray diffraction studies and an advanced anode material for Na/K-ion batteries. Energy Environ Sci. 2019;12(12):3575. https://​doi.​org/​10.​1039/​C9EE02759A.CrossRef
[27]
[29]
go back to reference Tang W, Jian J, Chen G, Bian W, Yu J, Wang H, Zhou M, Ding D, Luo H. Carbon nanotube supported amorphous MoS2 via microwave heating synthesis for enhanced performance of hydrogen evolution reaction. Energy Mater. Adv. 2021; 2021: 8140964. Doi: https://doi.org/10.34133/2021/8140964. Tang W, Jian J, Chen G, Bian W, Yu J, Wang H, Zhou M, Ding D, Luo H. Carbon nanotube supported amorphous MoS2 via microwave heating synthesis for enhanced performance of hydrogen evolution reaction. Energy Mater. Adv. 2021; 2021: 8140964. Doi: https://​doi.​org/​10.​34133/​2021/​8140964.
[31]
[39]
[50]
[55]
[56]
Metadata
Title
Porous current collector enables carbon superior electrochemical performance for K-ion capacitors
Authors
Mei-Qi Liu
Hui-Ming Li
Zai-Yuan Le
Jin-Fu Zhao
Li-Min Chang
Luan Fang
Mei-Qi Hou
Hai-Rui Wang
Tian-Hao Xu
Ping Nie
Publication date
05-10-2022
Publisher
Nonferrous Metals Society of China
Published in
Rare Metals / Issue 1/2023
Print ISSN: 1001-0521
Electronic ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-022-02111-0

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