Short‐Range Order in Mesoporous Carbon Boosts Potassium‐Ion Battery Performance

Wang, Wei; Zhou, Junhu; Wang, Zhuopeng; Zhao, Liyun; Li, Peihao; Yang, Yong; Yang, Changchun; Huang, Hanxin; Guo, Shaojun

doi:10.1002/aenm.201701648

Cited by 497 publications

(323 citation statements)

References 42 publications

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“…[14,15] However,c arbonaceous materials exhibit ar elatively low reversible capacity because potassium-ion storage is limited by the insertion mechanism. [14,15] However,c arbonaceous materials exhibit ar elatively low reversible capacity because potassium-ion storage is limited by the insertion mechanism.…”

Section: Introductionmentioning

confidence: 99%

A Robust Solid Electrolyte Interphase Layer Augments the Ion Storage Capacity of Bimetallic‐Sulfide‐Containing Potassium‐Ion Batteries

et al. 2019

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Metal-organic framework-derived NiCo 2.5 S 4 microrods wrapped in reduced graphene oxide (NCS@RGO) were synthesized for potassium-ion storage.Upon coordination with organic potassium salts,N CS@RGO exhibits an ultrahigh initial reversible specific capacity (602 mAh g À1 at 50 mA g À1 ) and ultralong cycle life (a reversible specific capacity of 495 mAh g À1 at 200 mA g À1 after 1900 cycles over 314 days). Furthermore,t he battery demonstrates ah igh initial Coulombic efficiency of 78 %, outperforming most sulfides reported previously.A dvanced ex situ characterization techniques,i ncluding atomic force microscopy, were used for evaluation and the results indicate that the organic potassium salt-containing electrolyte helps to form thin and robust solid electrolyte interphase layers,w hichr educe the formation of byproducts during the potassiation-depotassiation process and enhance the mechanical stability of electrodes.T he excellent conductivity of the RGO in the composites,a nd the robust interface between the electrodes and electrolytes,i mbue the electrode with useful properties;i ncluding,u ltrafast potassium-ion storage with areversible specific capacity of 402 mAh g À1 even at 2Ag À1 .

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Section: Introductionmentioning

confidence: 99%

A Robust Solid Electrolyte Interphase Layer Augments the Ion Storage Capacity of Bimetallic‐Sulfide‐Containing Potassium‐Ion Batteries

et al. 2019

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“…Almost no capacity fading occurred after the initial 100 cycles . NonSiMPMs have similar applications as electrodes in Na‐ion batteries, Zn‐Air batteries, K‐ion batteries, and Al‐ion batteries …”

Section: Applications Of Nonsimpmsmentioning

confidence: 98%

Nonsiliceous Mesoporous Materials: Design and Applications in Energy Conversion and Storage

Wang

Guo

Luo

et al. 2019

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In this work, the progress in the design of nonsiliceous mesoporous materials (nonSiMPMs) over the last five years from the perspectives of the chemical composition, morphology, loading, and surface modification is summarized. Carbon, metal, and metal oxide are in focus, which are the most promising compositions. Then, representative applications of nonSiMPMs are demonstrated in energy conversion and storage, including recent technical advances in dye‐sensitized solar cells, perovskite solar cells, photocatalysts, electrocatalysts, fuel cells, storage batteries, supercapacitors, and hydrogen storage systems. Finally, the requirements and challenges of the design and application of nonSiMPMs are outlined.

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“…Also, the Daumas–Hérold model, should also be taken into consideration while explaining the substantial increase of interlayer spacing in K‐based GICs (+60% for KC 6 ), as compared to the Li‐GICs (+11% for LiC 6 ); the related strain in the individual graphite layers should also be considered . Previous studies have demonstrated that the short‐order range was recognized to be significant for the electrochemical performances, and the decreased lateral dimensions were beneficial for higher rate performance …”

Section: Anode Materialsmentioning

confidence: 99%

Advancements and Challenges in Potassium Ion Batteries: A Comprehensive Review

Rajagopalan

Tang

et al. 2020

Adv Funct Materials

702

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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Short‐Range Order in Mesoporous Carbon Boosts Potassium‐Ion Battery Performance

Cited by 497 publications

References 42 publications

A Robust Solid Electrolyte Interphase Layer Augments the Ion Storage Capacity of Bimetallic‐Sulfide‐Containing Potassium‐Ion Batteries

A Robust Solid Electrolyte Interphase Layer Augments the Ion Storage Capacity of Bimetallic‐Sulfide‐Containing Potassium‐Ion Batteries

Nonsiliceous Mesoporous Materials: Design and Applications in Energy Conversion and Storage

Advancements and Challenges in Potassium Ion Batteries: A Comprehensive Review

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