A comprehensive review of carbon anode materials for potassium-ion batteries based on specific optimization strategies

Yuan, Fei; Li, Yanan; Zhang, Di; Li, Zhaojin; Wang, Huan; Wang, Bo; Wu, Y.; Wu, Yimin A.

doi:10.1039/d3qi00056g

Cited by 9 publications

(6 citation statements)

References 134 publications

(231 reference statements)

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“…26a)) and soft carbon (graphitisable carbon), emerge as promising candidates for anode materials. 335–359 This is attributed to their relatively low cost, high surface area, and ease of surface modification. Notably, graphite stands out as a viable option for achieving high-voltage KIBs, as its potassiation/depotassiation voltage plateau lies above 0.1 V versus K/K + (Fig.…”

Section: High-energy-density Potassium-ion Battery Full Cell Designmentioning

confidence: 99%

Advancements in cathode materials for potassium-ion batteries: current landscape, obstacles, and prospects

Masese,

Kanyolo

2024

Energy Adv.

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Section: High-energy-density Potassium-ion Battery Full Cell Designmentioning

confidence: 99%

Advancements in cathode materials for potassium-ion batteries: current landscape, obstacles, and prospects

Masese,

Kanyolo

2024

Energy Adv.

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“…In fact, it is very difficult for the Li + absorption on C atoms, but C-F semi-ionic bond can enhance the Li + adsorption capacity of C atoms, enabling higher capacity for energy storage [39]. The strong interaction between the functional groups on COF BTMB-TP skeleton and Li + is supported by the distribution of Mulliken bonds.…”

Section: Electrochemical Performance Of Cof Btmb-tp Nanofilm Electrodementioning

confidence: 99%

All-Covalent Organic Framework Nanofilms Assembled Lithium-Ion Capacitor to Solve the Imbalanced Charge Storage Kinetics

Xu,

Zhang,

Zhang

et al. 2024

Nano-Micro Lett.

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Free-standing covalent organic framework (COFs) nanofilms exhibit a remarkable ability to rapidly intercalate/de-intercalate Li+ in lithium-ion batteries, while simultaneously exposing affluent active sites in supercapacitors. The development of these nanofilms offers a promising solution to address the persistent challenge of imbalanced charge storage kinetics between battery-type anode and capacitor-type cathode in lithium-ion capacitors (LICs). Herein, for the first time, custom-made COFBTMB-TP and COFTAPB-BPY nanofilms are synthesized as the anode and cathode, respectively, for an all-COF nanofilm-structured LIC. The COFBTMB-TP nanofilm with strong electronegative–CF3 groups enables tuning the partial electron cloud density for Li+ migration to ensure the rapid anode kinetic process. The thickness-regulated cathodic COFTAPB-BPY nanofilm can fit the anodic COF nanofilm in the capacity. Due to the aligned 1D channel, 2D aromatic skeleton and accessible active sites of COF nanofilms, the whole COFTAPB-BPY//COFBTMB-TP LIC demonstrates a high energy density of 318 mWh cm−3 at a high-power density of 6 W cm−3, excellent rate capability, good cycle stability with the capacity retention rate of 77% after 5000-cycle. The COFTAPB-BPY//COFBTMB-TP LIC represents a new benchmark for currently reported film-type LICs and even film-type supercapacitors. After being comprehensively explored via ex situ XPS, 7Li solid-state NMR analyses, and DFT calculation, it is found that the COFBTMB-TP nanofilm facilitates the reversible conversion of semi-ionic to ionic C–F bonds during lithium storage. COFBTMB-TP exhibits a strong interaction with Li+ due to the C–F, C=O, and C–N bonds, facilitating Li+ desolation and absorption from the electrolyte. This work addresses the challenge of imbalanced charge storage kinetics and capacity between the anode and cathode and also pave the way for future miniaturized and wearable LIC devices.

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“…Among the main materials platforms explored in recent years, MXene [26] , one-dimensional nanostructures [27] , metalorganic frameworks [28] , organic compounds [29] , layered metal oxides [30] , alloys [31] , and carbon-based systems [32] emerged. As regards the latter category, it represents the most studied platform, and recent review articles focused on hard carbons [33] , biomass-derived systems [34] , nanotubes [35] , optimisation strategies [36] , stability [37] , modelling [38] , and flexible electrodes [39] have been published. Also, in-depth studies on potassium-enriched or expanded graphite [40,41] , specific electrolyte formulations [42] , and potassium encapsulation within carbon nanostructures [43] have been published.…”

Section: Introductionmentioning

confidence: 99%

Exploring nature-behaviour relationship of carbon black materials for potassium-ion battery electrodes

Trano,

Versaci,

Castellino

et al. 2024

Energy Mater

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An essential component of a working electrode is the conductive additive: whether it is used in very low amounts or constitutes the conductive matrix, its electrochemical response is not negligible. Commercially diffused carbon black species (i.e., Super P, Super C65, and Super C45) still lack an in-depth electrochemical characterisation in the emerging field of potassium-ion battery systems, which are on the way towards large-scale stationary storage application. Thus, this work aims to provide strong tools to discriminate their active role in such secondary cells. First, the effect of their pseudo-amorphous structure on the storage mechanism of potassium ions, which tend mainly to adsorb on their surface rather than intercalate within graphene layers, leading to a pseudocapacitive response, is discussed. Then, Dunn’s and Trasatti’s methods are considered to identify the potential ranges in which surface-dominated reactions occur, quantifying their weight at the same time. This observation is surely linked with surface properties and exposed functional groups; thus, X-ray photoelectron spectroscopy is exploited to correlate electrochemical features with both pristine and cycled surfaces of the carbon black species.

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A comprehensive review of carbon anode materials for potassium-ion batteries based on specific optimization strategies

Abstract: Carbonaceous materials have been regarded as a promising anode for potassium-ion batteries (PIBs) due to their low cost and good conductivity. However, the larger size of K+ will unavoidably cause...

Cited by 9 publications

References 134 publications

Advancements in cathode materials for potassium-ion batteries: current landscape, obstacles, and prospects

Advancements in cathode materials for potassium-ion batteries: current landscape, obstacles, and prospects

All-Covalent Organic Framework Nanofilms Assembled Lithium-Ion Capacitor to Solve the Imbalanced Charge Storage Kinetics

Exploring nature-behaviour relationship of carbon black materials for potassium-ion battery electrodes

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