期刊
ACS ENERGY LETTERS
卷 6, 期 11, 页码 4127-4154出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.1c01855
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资金
- Australian National Fabrication Facility's Queensland Node (ANFF-Q)
- JST-ERATO Yamauchi Materials Space-Tectonics Project [JPMJER2003]
- national research foundation of Korea (NRF) - Korea government (MIST) [NRF-2019R1A2C2090443]
- Korea Electric Power Corporation [R19XO01-23]
- Nano.Material Technology Development Program [NRF-2017M3A7B4041987]
Sodium- and potassium-ion hybrid capacitors with carbonaceous anodes offer advantages such as high ion storage feasibility, low cost, and non-toxicity. Significant progress has been made in improving battery performance through the use of carbonaceous anodes, but challenges remain in terms of anode reliability.
Sodium- and potassium-ion (Na-/K-ion) hybrid capacitors are promising electrochemical energy storage systems that are more cost-effective than corresponding lithium-based alternatives. Their hybrid configuration integrates a battery-type anode and a capacitor-type cathode and affords high energy density, high power density, and good cycling stability. However, the primary issue encountered in Na-/K-ion hybrid capacitors is a lack of reliable anodes because of the sluggish reaction kinetics of large Na-/K-ions. In recent years, significant advancements have been achieved in carbonaceous anodes because of their high Na-/K-ion storage feasibility, natural abundance, low cost, and non-toxicity. This review encompasses the fundamental electrochemical principles of Na-/K-ion hybrid capacitors and provides insights into the intimate structure-performance relationship of carbonaceous anodes. The existing challenges and alternative strategies for improving the electrochemical performance of the carbonaceous anodes are emphasized. Finally, future prospects and possible directions for further improving carbonaceous anodes for Na-/K-ion hybrid capacitors are presented.
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