Constructing monodispersed MoSe2 anchored on graphene: a superior nanomaterial for sodium storage

Liu, Zhengqing; Zhang, Yi; Zhao, Hongyang; Li, Na; Du, Yaping

doi:10.1007/s40843-016-5133-2

Cited by 33 publications

(19 citation statements)

References 42 publications

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“…CV and electrochemical impedance spectroscopy (EIS) measurements were carried out using a CHI660E electrochemical workstation. EIS measurements were undertaken over a frequency range from 5×10 −3 to 10 5 Hz with the amplitude of 5 mV at open circuit potential of discharge state.…”

Section: Materials Synthesismentioning

confidence: 99%

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Nano-structured red phosphorus/porous carbon as a superior anode for lithium and sodium-ion batteries

Ding

Zhu

et al. 2017

Sci. China Mater.

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To enhance electrochemical performance of lithium or sodium-ion batteries (LIBs or NIBs), active materials are usually filled in porous conductive particles to produce anode composites. However, it is still challenging to achieve high performance anode composites with high specific capacity, excellent rate performance, high initial Coulombic efficiency (ICE) and long cycle life. Based on these requirements, we design and fabricate activated carbon-coated carbon nanotubes (AC@CNT) with hierarchical structures containing micro-and meso-pores. A new structure of phosphorus/carbon composite (P@AC@CNT) is prepared by confining red P in porous carbon through a vaporization-condensation-conversion method. The micro-pores are filled with P, while the meso-pores remain unoccupied, and the pore openings on the particle surface are sealed by P. Due to the unique structure of P@AC@CNT, it displays a high specific capacity of 1674 mA h g −1 at 0.2 C, ultrahigh ICE of 92.2%, excellent rate performance of 1116 mA h g −1 at 6 C, and significantly enhanced cycle stability for LIBs. The application of P@AC@CNT in NIBs is further explored. This method for the fabrication of the special composites with improved electrochemical performance can be extended to other energy storage applications.

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Section: Materials Synthesismentioning

confidence: 99%

“…Lithium-ion batteries (LIBs) currently dominate the power market due to their high energy density and long cycle life [3][4][5]. Recently, Na-ion batteries (NIBs) have attracted widespread attention as a potential alternative to LIBs due to their earth abundance, low cost and low redox potential [6,7].…”

Section: Introductionmentioning

confidence: 99%

Nano-structured red phosphorus/porous carbon as a superior anode for lithium and sodium-ion batteries

Ding

Zhu

et al. 2017

Sci. China Mater.

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“…Although LIBs have been widely used, the limited lithium resources seriously hindered the applications of LIBs in the field of large-scale energy storage systems. Sodium-ion batteries (SIBs) are thus considered to be a promising alternative to conventional LIBs for future large-scale commercial applications, thanks to the abundance and low cost of sodium resources and similar physical and chemical properties to lithium [7][8][9]. Combining SIB technique with DIB technique, Tang's group recently reported a novel tin-graphite DIB (named as Sn-G DIB) based on a sodium-ion electrolyte containing NaPF6 salt, using Sn foil directly as both the anode and current collector, and expanded graphite as the cathode [10].…”

Section: Non-noble Metal Anode Based Dual-ion Batteries: Promising Himentioning

confidence: 99%

Non-noble metal anode based dual-ion batteries: promising high-energy and low-cost energy storage devices

Tang

2017

Sci. China Mater.

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Lithium-ion batteries (LIBs), as one of the most commonly used electrochemical energy storage devices, have dominated today's markets for portable electronics and electric vehicles [1]. However, their energy density cannot yet satisfy the increasing requirement, so it is imperative for developing next-generation batteries with high energy density together with long cycling life and good safety.In recent years, a novel type of battery called as dual-ion battery (DIB) has been received special attention owing to its wider voltage window, lower cost, and better safety compared with conventional LIB [2]. In a typical DIB, graphite is utilized as both the cathode and anode materials due to its intrinsic redox amphotericity, while lithium salts dissolved in organic electrolyte or ionic liquid are adopted as the electrolyte. During the charging process, anions and cations intercalate into the graphite cathode and graphite anode respectively, as the discharging process works reversely. Owing to the high operating potentials for the anion intercalation into graphite, the cut-off voltage of DIBs (4.5-5.2 V) is considerably higher than conventional LIBs (below 4.2 V) [3], which is beneficial for increasing the energy density. However, the cycling stability of most reported DIBs is still unsatisfactory owing to the poor electrochemical stability of organic electrolyte under high voltage.Recently, Prof. Yongbing Tang and co-workers from Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, developed a novel and low-cost aluminum-graphite DIB (AGDIB) [4], using environmentally-friendly and low-cost aluminum foil as both the anode and current collector, graphite as the cathode material, and a specially designed LiPF6-contained carbonate as the electrolyte. The working mechanism is demonstrated to be as follows: upon charging, PF6 − anions in the electrolyte intercalate into the graphite cathode, while the Li + cations deposit onto the aluminum anode to form an AlLi alloy. Impressively, the AGDIB was demonstrated to deliver a reversible capacity of 104 mA h g −1 (based on the mass of graphite) at 2 C (1 C = 100 mA g −1 ) current rate, and a capacity retention of 88% after 200 cycles. As the Al foil acted as both the negative current collector and the negative active material, the AGDIB showed significantly reduced dead load and dead volume. Consequently, the AGDIB exhibited high packaged energy density of~220 W h kg −1 at a power density of~130 W kg −1 , and~150 W h kg −1 at~1200 W kg −1 , which were~50% higher than most commercial LIBs. While the AGDIB achieved high packaged energy density and high power density, the cycling stability was still needed to be improved because of the poor electrochemical stability of organic electrolyte under high voltage as well as the crack and pulverization problem of Al foil during cycling.To solve this issue, Tang's group further utilized ionic liquid electrolyte to improve the cycling stability of the Al-graphite DIB [5]. Owing to the merits of negligible vapor pressure, n...

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“…Compared with conventional lithium ion batteries (LIBs), SIBs are much cheaper because its earth abundance (2.74 wt%) is much larger than that of Li (0.0065 wt%) [1][2][3][4][5][6][7]. However, it will be a big challenge to use metallic sodium as anode, as many serious issues, including the dendrite growth, the low Coulombic efficiency and the unstable solid electrolyte interphase caused by the intensive corrosion and active reaction of Na with electrolyte, have to been solved [8].…”

Section: Introductionmentioning

confidence: 99%

“…Nanostructured transition metals (Sn, Sb, etc.) and their oxides or sulphide, as well as phosphor (P) and their compounds, have also attracted intensive interests because of their much higher theoretical sodium ion storage capacity [1][2][3][4]12]. However, the poor cyclic stability due to the larger volume change is the intrinsic drawbacks as anode materials for SIBs.…”

Section: Introductionmentioning

confidence: 99%

Bimetal-organic-framework derived CoTiO3 mesoporous micro-prisms anode for superior stable power sodium ion batteries

et al. 2018

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Durability, rate capability, capacity and tap density are paramount performance metrics for promising anode materials, especially for sodium ion batteries. Herein, a carbon free mesoporous CoTiO 3 micro-prism with a high tap density (1.8 g cm −3) is newly developed by using a novel Co-Tibimetal organic framework (BMOF) as precursor. It is also interesting to find that the Co-Ti-BMOF derived carbon-free mesoporous CoTiO 3 micro-prisms deliver a superior stable and more powerful Na + storage than other similar reported titania, titanate and their carbon composites. Its achieved capacity retention ratio for 2,000 cycles is up to 90.1% at 5 A g −1 .

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Constructing monodispersed MoSe2 anchored on graphene: a superior nanomaterial for sodium storage

Cited by 33 publications

References 42 publications

Nano-structured red phosphorus/porous carbon as a superior anode for lithium and sodium-ion batteries

Nano-structured red phosphorus/porous carbon as a superior anode for lithium and sodium-ion batteries

Non-noble metal anode based dual-ion batteries: promising high-energy and low-cost energy storage devices

Bimetal-organic-framework derived CoTiO3 mesoporous micro-prisms anode for superior stable power sodium ion batteries

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