Confined phosphorus in carbon nanotube-backboned mesoporous carbon as superior anode material for sodium/potassium-ion batteries

Liú, Dan; Huang, Xingkang; Qu, Deyu; Zheng, Dong; Wang, Gongwei; Harris, Jay E.; Si, Jingyu; Ding, Tianyao; Chen, Junhong; Qu, Deyang

doi:10.1016/j.nanoen.2018.07.023

Cited by 160 publications

(102 citation statements)

References 57 publications

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“…[43] Impressively fast potassium-ion storage performance is evident in our system when compared to the rate performance of previously reported advanced anode materials (Figure 6d). [15,[18][19][20]27,39,[44][45][46][47][48][49] To further verify the cycle life of our electrode,t he long-term cycling performance of NCS@RGO-2 using KFSI-EP electrolyte at 200 mA g À1 was ascertained (Figure 6e). Our NCS@RGO-2 electrode exhibits an excellent cycle stability of 495 mAh g À1 at 200 mA g À1 after 1900 cycles (cycling for 314 days).…”

Section: Angewandte Chemiementioning

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: Angewandte Chemiementioning

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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“…The confinement of phosphorus into porous carbon host have been intensively studied in LIB with the purpose of increasing the electrical conductivity and buffering the volume change during the alloying process. The same methodology was also applied in KIB with the reported P/C ball-milled composites and P@CN, P@TBMC or P@rGO synthesized by vaporization/condensation route (Sultana et al, 2017a,b;Liu D. et al, 2018;Wu et al, 2018b;Xiong et al, 2018b) (Figure 7). Looking at the electrochemical behavior of these materials, the first discharge capacity never reached 2,596 mAh/g as expected for the formation of K 3 P, but rather capacities near 850 mAh/g expected for the formation of KP.…”

Section: Alloying and Conversion Electrodesmentioning

confidence: 99%

Snapshot on Negative Electrode Materials for Potassium-Ion Batteries

et al. 2019

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Potassium-based batteries have recently emerged as a promising alternative to lithium-ion batteries. The very low potential of the K + /K redox couple together with the high mobility of K + in electrolytes resulting from its weak Lewis acidity should provide high energy density systems operating with fast kinetics. However, potassium metal cannot be implemented in commercial batteries due to its high reactivity. As safety is one of the major concerns when developing new types of batteries, it is therefore crucial to look for materials alternative to potassium metal that electrochemically insert K + at low potential. Here, the different types of negative electrode materials highlighted in many recent reports will be presented in detail. As a cornerstone of viable potassium-ion batteries, the choice of the electrolyte will be addressed as it directly impacts the cycling performance. Lastly, guidelines to a rational design of sustainable and efficient negative electrode materials will be proposed as open perspectives.

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“…Recently, phosphorus (P), including red phosphorus and black phosphorus, has attracted great attention for PIBs due to its high specific capacity (2595 mAh g −1 ), low cost, and environment‐friendliness . However, the phosphorus exhibits a low electrical conductivity (≈10 −14 S cm −1 ) and huge volume variation (>400%) during potassiation/depotassiation process, resulting in poor cycle performance and fast capacity decay .…”

Section: Introductionmentioning

confidence: 99%

Advanced Se₃P₄@C Anode with Exceptional Cycling Life for High Performance Potassium‐Ion Batteries

Zhao

et al. 2020

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Potassium‐ion batteries have attracted increasing attention for next‐generation energy storage systems due to their high energy density and abundance of potassium. However, the lack of suitable anode highly hampers its practical application due to the large ionic radius of K+. Herein, a Se3P4@mesoporous carbon (Se3P4@C) composite is reported as a high‐performance anode for potassium‐ion batteries. The Se3P4@C composite is synthesized through an in situ combination reaction between red phosphorus and Se within a porous carbon matrix. In this way, the nano‐sized Se3P4 is well confined in the porous carbon and thus exhibits a close contact with the carbon matrix. This can significantly improve the conductivity and alleviate the volume change during the cycling process. As a result, the Se3P4@C exhibits a high reversible initial capacity of 1036.8 mAh g−1 at a current density of 50 mA g−1 as well as an excellent cycle performance with a capacity decay of 0.07% per cycle over 300 cycles under 1000 mA g−1. In terms of high specific capacity and stable cycling performance, the Se3P4@C anode is a promising candidate for advanced potassium‐ion batteries.

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Confined phosphorus in carbon nanotube-backboned mesoporous carbon as superior anode material for sodium/potassium-ion batteries

Cited by 160 publications

References 57 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

Snapshot on Negative Electrode Materials for Potassium-Ion Batteries

Advanced Se₃P₄@C Anode with Exceptional Cycling Life for High Performance Potassium‐Ion Batteries

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Confined phosphorus in carbon nanotube-backboned mesoporous carbon as superior anode material for sodium/potassium-ion batteries

Cited by 160 publications

References 57 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

Snapshot on Negative Electrode Materials for Potassium-Ion Batteries

Advanced Se3P4@C Anode with Exceptional Cycling Life for High Performance Potassium‐Ion Batteries

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Advanced Se₃P₄@C Anode with Exceptional Cycling Life for High Performance Potassium‐Ion Batteries