A high-performance potassium-ion capacitor based on a porous carbon cathode originated from the Aldol reaction product

Yu, Xu; Shao, Mingjie; Yang, Xuemei; Li, Chongxing; Li, Tong; Li, Danyu; Wang, Rutao; Yin, Longwei

doi:10.1016/j.cclet.2019.11.012

Cited by 19 publications

(9 citation statements)

References 36 publications

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“…The rate performance of the NPMC-700 electrode is superior to those reported previously for carbonaceous electrodes for PIBs (Table S1†). 20,40–53 The exceptional high-rate capability of the NPMC-700 electrode may be derived from the enhanced conductivity and improved surface wetting ability of the electrolyte owing to P and N co-doping, thus eventually contributing to more K + storage.…”

Section: Resultsmentioning

confidence: 99%

An improved bioinspired strategy to construct nitrogen and phosphorus dual-doped network porous carbon with boosted kinetics potassium ion capacitors

Zhang

Wang

et al. 2022

Nanoscale

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Section: Resultsmentioning

confidence: 99%

An improved bioinspired strategy to construct nitrogen and phosphorus dual-doped network porous carbon with boosted kinetics potassium ion capacitors

Zhang

Wang

et al. 2022

Nanoscale

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“…Therefore, the energy density and power density of a KIC constructed using ADPC cathode and nitrogen/ phosphorus co-doped carbon anode exhibited great competitiveness. [111] Gel polymer electrolyte has also been reported in K-ion capacitors. Tang and co-workers assembled a flexible potassium-ion capacitor using Sn anode and AC cathode.…”

Section: Activated Carbonmentioning

confidence: 99%

Emerging Potassium‐ion Hybrid Capacitors

Liu

Chang

et al. 2020

ChemSusChem

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As a new type of capacitor–battery hybrid energy storage device, metal‐ion capacitors have attracted widespread attention because of their high‐power density while ensuring energy density and long lifespan. Potassium‐ion capacitors (KICs) featuring the merits of abundant potassium resources, lower standard electrode potential, and low cost have been considered as potential alternatives to lithium‐/sodium‐ion capacitors. However, KICs still face issues including unsatisfactory reaction kinetics, low energy density, and poor lifetime owing to the large radius of the potassium ion. In this Review, the importance of emerging potassium‐ion capacitor is addressed. The Review offers a brief discussion of the fundamental working principle of KICs, along with an overview of recent advances and achievements of a variety of electrode materials for dual carbon and non‐dual carbon KICs. Furthermore, electrolyte chemistry, binders as well as electrode/electrolyte interface, are summarized. Finally, existing challenges and perspectives on further development of KICs are also presented.

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“…Yu et al adopted a one-step method to prepare porous carbon nanosheets from the aldol reaction product of acetone and KOH. [70] The as-prepared porous carbon nanosheets have a high SSA (2947 m 2 g À 1 ), a large pore volume (1.45 cm 3 g À 1 ) and a well-controlled pore size distribution (1-3 nm). Furthermore, the PICs fabricated by coupling the N,Pcodoped carbon anode and the porous carbon nanosheets cathode delivered an excellent energy density (72 Wh kg À 1 at a power density of 5220 W kg À 1 ) and have an outstanding capacity retention property (75.6 % for 2000 cycles at 1 A g À 1 ).…”

Section: D Carbon-based Cathode Materials For Picsmentioning

confidence: 99%

Application of 2D Materials to Potassium‐Ion Hybrid Capacitors

Zhang

Deng

et al. 2021

ChemSusChem

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Metal‐ion hybrid supercapacitors (MICs) are a new type of electrochemical energy storage (EES) device, consisting of a battery‐type electrode and a supercapacitor (SC)‐type electrode. Exhibiting the advantages of both batteries and SCs (e. g., good energy density, excellent power density and long cycle life), these advanced energy storage devices have considerable commercial application prospects. Among MICs, potassium‐ion hybrid supercapacitors (PICs) have several further advantages, including abundancy of resources, low standard electrode potential, and low cost. PICs are regarded as potential substitutes for lithium‐ or sodium‐ion hybrid supercapacitors. However, the practical applications of PICs remain limited, owing to the imbalance of kinetics and capacity between the electrodes, the slow ion/electron diffusion rate, and the poor electrode structural stability. Recently, 2D materials with distinct structures and fascinating features have elicited widespread attention for application in PICs, thus achieving significant enhancements, ranging from charge storage capacity to reaction kinetics. This Review discusses research progress in 2D materials for PICs. Firstly, the energy storage principle and development requirements of MICs are introduced. The pivotal advantages and significant roles of 2D materials in the fabrication of PICs are then discussed in detail. Lastly, the challenges and prospects of the application of 2D materials to high‐performance PICs are presented.

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A high-performance potassium-ion capacitor based on a porous carbon cathode originated from the Aldol reaction product

Cited by 19 publications

References 36 publications

An improved bioinspired strategy to construct nitrogen and phosphorus dual-doped network porous carbon with boosted kinetics potassium ion capacitors

An improved bioinspired strategy to construct nitrogen and phosphorus dual-doped network porous carbon with boosted kinetics potassium ion capacitors

Emerging Potassium‐ion Hybrid Capacitors

Application of 2D Materials to Potassium‐Ion Hybrid Capacitors

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