Facile synthesis of multi-walled carbon nanotubes/Co 9 S 8 composites with enhanced performances for sodium-ion battery

Zhou, Hepeng; Hu, Jie

doi:10.1016/j.matlet.2017.02.004

Cited by 51 publications

(16 citation statements)

References 16 publications

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“…Considering the increasing depletion of traditional nonrenewable energy, it is very urgent to develop other energy storage devices with low cost and long lifespan [1][2][3][4][5][6][7][8][9]. Potassium-ion batteries (PIBs) have recently been rapidly developed as a competitive energy storage technology due to their relatively low redox potential (À2.93 V vs. SHE, standard hydrogen electrode) and the abundance of K [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Ultra-stable Sb confined into N-doped carbon fibers anodes for high-performance potassium-ion batteries

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Ultra-stable Sb confined into N-doped carbon fibers anodes for high-performance potassium-ion batteries

et al. 2020

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“…[11] In spiteo f this, Co 9 S 8 still shows lowc olumbic efficiency and fast capacity fading in conventionalc arbonate-based Na + electrolytes because of significant electrolyte/electrode side reactions. [8,12] Recent studies have shown that ether-based electrolytes (EBE) possess higher solvents tability and lower reactionb arriers than carbonate-based electrolytes (CBE). [4a] Although the relatively low anodic stabilityo fE BE represents somec apacity sacrifice, the cycling stabilityo ft he electrode is greatly improved.…”

Section: Introductionmentioning

confidence: 99%

Co₉S₈/Co as a High‐Performance Anode for Sodium‐Ion Batteries with an Ether‐Based Electrolyte

et al. 2017

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Co S has been regarded as a desirable anode material for sodium-ion batteries because of its high theoretical capacity. In this study, a Co S anode material containing 5.5 wt % Co (Co S /Co) was prepared by a solid-state reaction. The electrochemical properties of the material were studied in carbonate and ether-based electrolytes (EBE). The results showed that the material had a longer cycle life and better rate capability in EBE. This excellent electrochemical performance was attributed to a low apparent activation energy and a low overpotential for Na deposition in EBE, which improved the electrode kinetic properties. Furthermore, EBE suppressed side reactions of the electrode and electrolyte, which avoided the formation of a solid electrolyte interphase film.

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“…Hybridizing nanostructures of MSs with carbon materials is a common and effective approach to improve electrochemical performance of MSs as SIBs anodes. [29] Various carbon materials including commonly used reduced graphene oxide, [30] carbon nanotubes, [31] and graphene [32] as well as amorphous carbon, [33] functional graphene nanosheets (FGNs), [34] multiwall carbon nanotubes (MWCNTs), [35] disordered carbon, [36] carbon microtubes [37] were employed towards composites formation with improved electrochemical performance of MSs. NiS 2 nanoparticles anchored on graphene nanosheets (GNS) has much improved rate performance than pure NiS 2 , which only retains capacity of 9 mAh g −1 at 1614 mA g −1 as compared to 168 mAh g −1 of NiS 2 -GNS.…”

Section: Sibsmentioning

confidence: 99%

The Advances of Metal Sulfides and In Situ Characterization Methods beyond Li Ion Batteries: Sodium, Potassium, and Aluminum Ion Batteries

2019

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Lithium ion batteries (LIBs) have embraced successes in industrial commercialization and garnered the spotlights in academic research for energy storage devices in the last few decades, owing to the high energy density and high voltage output. [1] Following the widespread application of LIBs, the price of Li resource (mostly Li carbonates) has been increasing significantly, which has already tripled since the beginning of 21st century due to the limited reserve and uneven distribution. [2] Estimated mass fraction of Li on earth crust is only ≈20 ppm, [2d] while the identified Li reserves are geographically unevenly distributed, almost 2/3 of world's Li reserves are located in the "lithium triangle" area at South America. [2a,b] Apart from Li, there have been predictions of supply risks for cobalt resources as well, which are also geographically concentrated in certain regions. [2a,f,3] It is forecasted that Li with medium-to-long term supply risks will be consumed by year of 2050 while the short term Co supply risk is even more urgent than Li. [2a] The Li and Co supply risks on LIBs have triggered and necessitated the exploitation and development of alternative energy storage devices, for example sodium ion batteries (SIBs), potassium ion batteries (PIBs), and aluminum ion batteries (AIBs). The larger ionic radii (Na + : 1.02 Å and K + : 1.38 Å) than Li + (0.76 Å), together with the higher molecular weight of Na (23) and K (39.1) as displayed in Figure 1a, will inevitably hinder the redox kinetics and storage capability of SIBs/PIBs. In addition, the standard redox potential of sodium/potassium (−2.74 V for Na/Na + and −2.96 V for K/K + as shown in Figure 1b) are higher than Li (−3.04 V for Li/Li +), limiting the energy density. [2d,4] Thus the theoretical gravimetric/volumetric capacity of Na (1166 mAh g −1 ; 1131 mAh cm −3) and K (685 mAh g −1 ; 609 mAh cm −3) are both inferior to that of Li (3861 mAh g −1 ; 2062 mAh cm −3) as presented in Figure 1c. [2d] However, Na and K have much higher crustal abundance of 2.36 and 2.09 wt% respectively, in sharp contrast with Li (0.0017 wt%). [5] The cost of Na and K are much lower than that of Li as shown in Figure 1d, making SIBs/PIBs cost effective alkaline metal ion batteries. [5] Furthermore, the lower desolvation energy of Na + /K + (152.8/114.6 kJ mol −1) in ethylene carbonate (EC) than Li + (208.9 kJ mol −1) and higher With increasing cost and supply risks of lithium-ion batteries (LIBs), exploitation of alternative metal-ion batteries has been ongoing in recent years. Sodium-ion batteries (SIBs), potassium-ion batteries (PIBs), and aluminum-ion batteries (AIBs) have unique advantages as post-LIB alternatives. Nonetheless, development of electrode materials with high capacity, good reversibility, and extended cycling stability remains challenging. Metal sulfides (MSs), with improved electronic conductivity and better reversibility than metal oxide counterparts, as well as high theoretical capacities, are deemed as promising electrode materials and have been investi...

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Facile synthesis of multi-walled carbon nanotubes/Co 9 S 8 composites with enhanced performances for sodium-ion battery

Cited by 51 publications

References 16 publications

Ultra-stable Sb confined into N-doped carbon fibers anodes for high-performance potassium-ion batteries

Ultra-stable Sb confined into N-doped carbon fibers anodes for high-performance potassium-ion batteries

Co₉S₈/Co as a High‐Performance Anode for Sodium‐Ion Batteries with an Ether‐Based Electrolyte

The Advances of Metal Sulfides and In Situ Characterization Methods beyond Li Ion Batteries: Sodium, Potassium, and Aluminum Ion Batteries

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Facile synthesis of multi-walled carbon nanotubes/Co 9 S 8 composites with enhanced performances for sodium-ion battery

Cited by 51 publications

References 16 publications

Ultra-stable Sb confined into N-doped carbon fibers anodes for high-performance potassium-ion batteries

Ultra-stable Sb confined into N-doped carbon fibers anodes for high-performance potassium-ion batteries

Co9S8/Co as a High‐Performance Anode for Sodium‐Ion Batteries with an Ether‐Based Electrolyte

The Advances of Metal Sulfides and In Situ Characterization Methods beyond Li Ion Batteries: Sodium, Potassium, and Aluminum Ion Batteries

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Co₉S₈/Co as a High‐Performance Anode for Sodium‐Ion Batteries with an Ether‐Based Electrolyte