Coal-based carbon anodes for high-performance potassium-ion batteries

Xiao, Nan; Zhang, Xiaoyu; Liu, Chang; Wang, Yuwei; Li, Hongqiang; Qiu, Jieshan

doi:10.1016/j.carbon.2019.03.020

Cited by 106 publications

(34 citation statements)

References 39 publications

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“…The fall of H/C ratio with aromaticity confirms the extent of graphitization (Fig. 2) (Manoj 2016;Xiao et al 2019). Lignite being the lowest rank coal has high heteroatom content and low aromaticity.…”

Section: Influential Parameters 21 Rank Of Coalmentioning

confidence: 52%

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Electrochemical efficacies of coal derived nanocarbons

Thomas

Balachandran

2020

Int J Coal Sci Technol

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Carbon based nanomaterials are acknowledged for their admirable optical, electrical, mechanical characteristics and broad class of applications. Choice of precursor and simple synthesis techniques have decisive roles in viable production and commercialization of carbon produce. The intense demand to develop high purity carbon nanomaterials through inexpensive techniques has promoted usage of fossil derivatives as feasible source of carbon. Coal serves as a naturally available, abundant and cheap feedstock for carbon materials. From the crystalline clusters of aromatic hydrocarbons in a cross-linked network, carbon nanostructures can easily be extracted through green synthesis routes. It promotes a potent alternative for the cost effective and scaled up production of nanocarbon. The well-developed pores distribution, presence of numerous active sites and appropriate migration channels for ions enhance the electrochemical parameters necessary for the fabrication of supercapacitors, batteries and electrochemical sensors. The metallic impurities contained in coal contribute towards faradic redox reactions required for an efficient electrode modification. In this review, the potential uses of coal based carbon nanomaterials in energy storage and environmental sectors are discussed in detail.

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Section: Influential Parameters 21 Rank Of Coalmentioning

confidence: 52%

“…Carbon anodes for potassium ion batteries were prepared from bituminous coal by Xiao et al (2019). The anode material retaining 260 mA h/g under current density of 50 mA/g indicates good electrochemical reversibility.…”

Section: Anode Materials In Batteriesmentioning

confidence: 99%

Electrochemical efficacies of coal derived nanocarbons

Thomas

Balachandran

2020

Int J Coal Sci Technol

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“…BHC has the higher ICE and capacity retention compared with previously published work. [ 24,31,37,43–49 ]…”

Section: Resultsmentioning

confidence: 99%

Balsa‐Wood‐Derived Binder–Free Freestanding Carbon Foam as High‐Performance Potassium Anode

Liu

et al. 2021

Adv Energy and Sustain Res

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The binder‐free freestanding electrode is assumed as a proven and effective method of increasing the energy density of potassium‐ion batteries (PIBs) because of the addition of binder and conductor. However, an expensive and complex synthesis process hampers its development, Herein, a binder‐free freestanding biomass hard carbon (BHC) foam with balsa wood as the precursor is put forward. The prepared BHC foam maintains a highly hierarchical structure, in which the channels are interconnected and the pipe walls form an extremely stable 3D structure. This 3D porous network is synthesized in one step by a simple, environmentally friendly method, which ensures efficient ion and electrolyte transfer without structure collapse during the electrochemical cycle. When used as PIB anodes, the binder‐free freestanding carbon foam delivers a high reversible capacity of 252.7 mAh g−1 at 100 mA g−1 with a high initial coulombic efficiency of 63.7%, excellent long cycle stability (95.1% capacity retention after 500 cycles, and the average decay rate per cycle is 0.012% over 2500 cycles), and superior rate capability (the capacity of 165 mAh g−1 reserved at 2000 mA g−1). This strategy provides a simple and fast way to fabricate a stable and high‐performance anode for PIBs.

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“…A very recent study investigated the performances of coal‐based carbon. This novel material could exhibit a specific capacity of 260 mAh g −1 at a current density of 0.05 A g −1 , and could maintain a capacity of 118 mAh g −1 at the end of 1200 cycles at 1 A g −1 . Besides hard and soft carbons, other widely explored anode materials for KIB are doped and undoped graphene‐based materials.…”

Section: Anode Materialsmentioning

confidence: 99%

Advancements and Challenges in Potassium Ion Batteries: A Comprehensive Review

Rajagopalan

Tang

et al. 2020

Adv Funct Materials

660

401

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Demand for energy in day to day life is increasing exponentially. However, existing energy storage technologies like lithium ion batteries cannot stand alone to fulfill future needs. In this regard, potassium ion batteries (KIBs) that utilize K ions in their charge storage mechanism have attracted considerable attention due to their unique properties and are therefore established as one of the future battery systems of interest among the scientific community. Nevertheless, the development and identification of appropriate electrode materials is very essential for practical applications. This review features the current development in KIBs electrode and electrolyte materials, the present challenges facing this technology (in the commercial aspect), and future aspects to develop fully functional KIBs. The potassium storage mechanisms, evolution of the KIBs, and the advantages and disadvantages of each category of materials are included. Additionally, various approaches to enhance the electrochemical performances of KIBs are also discussed. This review is not only an amalgamation of different viewpoints in literature, but also contains concise perspectives and strategies. Moreover, the potential emergence of a novel class of K‐based dual ion batteries is also analyzed for the first time.

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Coal-based carbon anodes for high-performance potassium-ion batteries

Cited by 106 publications

References 39 publications

Electrochemical efficacies of coal derived nanocarbons

Electrochemical efficacies of coal derived nanocarbons

Balsa‐Wood‐Derived Binder–Free Freestanding Carbon Foam as High‐Performance Potassium Anode

Advancements and Challenges in Potassium Ion Batteries: A Comprehensive Review

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