Simple and scalable synthesis of CuS as an ultrafast and long-cycling anode for sodium ion batteries

Kim, Hui-Hun; Sadan, Milan K.; Kim, Changhyeon; Choe, Seon-Hwa; Cho, Kwon-Koo; Kim, Ki-Won; Ahn, Jin-Hee; Ahn, Hyo‐Jun

doi:10.1039/c9ta04640b

Cited by 57 publications

(34 citation statements)

References 79 publications

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“…[33][34][35] In addition, Park et al found that Cu 1.8 S shows an intercalation/deintercalation reaction mechanism without irreversible phase transformation, but most of metal sulfides experience a conversion reaction mechanism, [36] and there are some similar researches to CuS materials for sodium ion storage. [37,38] According to the latest report, nitrogen-doped carbon-coated Cu 9 S 5 bullet-like hollow particles and hierarchical CuS@CoS 2 double-shelled nanoboxes have been prepared by morphology design and nanostructure engineering and both have superior rate capability and long cycle life. [39,40] However, behind the reaction mechanisms there still exist some unclear issues related to the reaction pathways and phase transformation.…”

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confidence: 99%

Hydrangea‐Like CuS with Irreversible Amorphization Transition for High‐Performance Sodium‐Ion Storage

Yang

Hua

et al. 2020

Advanced Science

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Metal sulfides have been intensively investigated for efficient sodium‐ion storage due to their high capacity. However, the mechanisms behind the reaction pathways and phase transformation are still unclear. Moreover, the effects of designed nanostructure on the electrochemical behaviors are rarely reported. Herein, a hydrangea‐like CuS microsphere is prepared via a facile synthetic method and displays significantly enhanced rate and cycle performance. Unlike the traditional intercalation and conversion reactions, an irreversible amorphization process is evidenced and elucidated with the help of in situ high‐resolution synchrotron radiation diffraction analyses, and transmission electron microscopy. The oriented (006) crystal plane growth of the primary CuS nanosheets provide more channels and adsorption sites for Na ions intercalation and the resultant low overpotential is beneficial for the amorphous Cu‐S cluster, which is consistent with the density functional theory calculation. This study can offer new insights into the correlation between the atomic‐scale phase transformation and macro‐scale nanostructure design and open a new principle for the electrode materials' design.

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confidence: 99%

Hydrangea‐Like CuS with Irreversible Amorphization Transition for High‐Performance Sodium‐Ion Storage

Yang

Hua

et al. 2020

Advanced Science

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“…Fortunately, recent studies have indicated that ether-based electrolytes exhibit high ionic conductivities and offer low resistances to fast kinetics. − For example, Xia et al reported the reasonable electrochemical performance delivered by a Ni 3 S 2 /carbon nanotube composite in an ether-based electrolyte . Our research group also reported that the use of an ether-based electrolyte optimized the rate and cycling performances of metal sulfides. , …”

Section: Introductionmentioning

confidence: 69%

“…On the other hand, a facile, scalable, sol−gel route, without any 34 Our research group also reported that the use of an ether-based electrolyte optimized the rate and cycling performances of metal sulfides. 41,42 The present study demonstrates the synthesis of mesoporous Ni 3 S 2 nanoparticles via a facile, scalable sol−gel method. We recorded the electrochemical performance obtained when using mesoporous Ni 3 S 2 as the anode material for SIBs and PIBs; an ether-based electrolyte was employed in the experiments.…”

Section: ■ Introductionmentioning

confidence: 81%

Excellent Electrochemical Performance of a Mesoporous Nickel Sulfide Anode for Na/K-Ion Batteries

Sadan

Jeon

Yun

et al. 2021

ACS Appl. Energy Mater.

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Post-lithium-ion batteries (LIBs) have been widely studied owing to the extensive exploitation of lithium resources. Sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) are considered suitable alternatives to LIBs; however, the absence of an ideal anode material limits the practical applications of such post-LIBs. The present study demonstrates the application of mesoporous Ni 3 S 2 as an anode material for SIBs and PIBs as well as the advantages of using a porous electrode in a high ionic-conductivity, low-viscosity, ether-based electrolyte. The utilization of mesoporous Ni 3 S 2 as the anode material resulted in extraordinary rate and cycling performances. When SIBs were assembled using mesoporous Ni 3 S 2 as the anode material, capacities of 610 and 154 mAh g −1 were obtained at current densities of 0.2 and 100 A g −1 , respectively. Long-term cycling stability, with an initial capacity of 307 mAh g −1 and a capacity decay of 0.0085% per cycle, was also observed over 5000 cycles at 50 A g −1 . Full cells assembled using Na 3 V 2 (PO 4 ) 3 and Ni 3 S 2 as cathode and anode materials, respectively, delivered exceptional rate and cycling performances. Longterm cycling stability, with a capacity decay of 0.034% per cycle, was obtained over 1500 cycles at 10 A g −1 . When PIBs were assembled using mesoporous Ni 3 S 2 as the anode material, capacities of 534 and 38 mAh g −1 were obtained at 1 and 100 A g −1 , respectively. Long-term cycling stability, with an initial capacity of 411 mAh g −1 and a capacity decay of 0.047% per cycle, was observed over 1000 cycles at 10 A g −1 . Notably, the rate and cycling performances obtained in the present study are superior to those obtained in previous works on the use of Ni 3 S 2 as the anode material for SIBs and PIBs.

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“…CuS, an inexpensive and sustainable material, is regarded as a potential Na‐host anode with high theoretical capacity of 558 mAh g −1 [9,10] . However, analogy to other metal dichalcogenides, CuS suffers from terrible capacity decay and inferior rate capability on account of the intrinsic low conductivity and huge volume change during cycling [11–21] . Considering that the sodium storage processes of CuS includes intercalation and conversion reactions, the volume change mainly occurs during the conversion reaction.…”

Section: Introductionmentioning

confidence: 99%

“…[9,10] However, analogy to other metal dichalcogenides, CuS suffers from terrible capacity decay and inferior rate capability on account of the intrinsic low conductivity and huge volume change during cycling. [11][12][13][14][15][16][17][18][19][20][21] Considering that the sodium storage processes of CuS includes intercalation and conversion reactions, the volume change mainly occurs during the conversion reaction. The cycle performance can be significantly improved by controlling the cut-off voltage to prevent the conversion reaction.…”

Section: Introductionmentioning

confidence: 99%

Porous Copper Sulfide Microflowers Grown In Situ on Commercial Copper Foils as Advanced Binder‐Free Electrodes with High Rate and Long Cycle Life for Sodium‐Ion Batteries

et al. 2020

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Copper sulfide (CuS) is considered as a promising sodium storage anode with its high theoretical capacity (558 mAh g−1), low cost and environmental friendliness. However, the development of applicable CuS anodes with high rate and long life is still greatly hindered by the sluggish electronic/ionic transport kinetics and huge volume change during repeated charge/discharge processes. In this work, a scalable and binder‐free 3D porous CuS microflower (CuS‐b) electrode was prepared via a simple method with in situ sulfur engraving on commercial copper foil. The as‐prepared CuS‐b delivers a high reversible capacity of 543 mAh g−1, excellent rate capability of 413 mAh g−1 at 60 A g−1 and remarkable long‐term cycling stability of 98.2 % capacity retention over 3600 cycles. The 3D self‐supporting porous structure can increase ionic transfer kinetics and provides enough space to buffer the volume expansion/contraction during repeated cycling, resulting in excellent Na storage performances. More importantly, the synthesis path is simple and efficient, which provides new insights for the design and development of high‐performance redox‐active electrodes for large‐scale energy storage applications.

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Simple and scalable synthesis of CuS as an ultrafast and long-cycling anode for sodium ion batteries

Abstract: Simple and scalable synthesis of binder free CuS anode with ultrafast, high capacity and long-cycling.

Cited by 57 publications

References 79 publications

Hydrangea‐Like CuS with Irreversible Amorphization Transition for High‐Performance Sodium‐Ion Storage

Hydrangea‐Like CuS with Irreversible Amorphization Transition for High‐Performance Sodium‐Ion Storage

Excellent Electrochemical Performance of a Mesoporous Nickel Sulfide Anode for Na/K-Ion Batteries

Porous Copper Sulfide Microflowers Grown In Situ on Commercial Copper Foils as Advanced Binder‐Free Electrodes with High Rate and Long Cycle Life for Sodium‐Ion Batteries

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