Aligned carbon nanotube/molybdenum disulfide hybrids for effective fibrous supercapacitors and lithium ion batteries

Luo, Yun; Zhang, Ye; Zhao, Yang; Fang, Xin; Ren, Jing; Weng, Wei; Jiang, Yishu; Sun, Hao; Wang, Bingjie; Cheng, Xunliang; Peng, Huisheng

doi:10.1039/c5ta04457j

Cited by 106 publications

(55 citation statements)

References 39 publications

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“…[20][21][22][23][24][25][26][27][28] Similar approaches involve mixing MoS2 with polyaniline nanowires 29 or carbon nanotubes. 19,[30][31][32] 3 However, the composite electrodes described above remain far from optimised as LIB electrodes. Although such approaches generally result in good capacity and improved stability, the rate capability is still not as good as had been hoped.…”

Section: Abstract: Advances In Lithium Ion Batteries Would Facilitatementioning

confidence: 99%

“…Electrode materials were then mixed with polyacrylic acid (as the binder) in 9:1 weight ratio and dispersed in H2O to form a homogeneous slurry. Subsequently, the slurry was uniformly applied onto a Cu foil, and vacuum dried at 25,27,28,67,68 and MoS2/NT (triangles) [30][31][32] electrodes. The filled stars represent our capacity data (extracted from rate data for the 20 wt% composite), normalised to the total anode…”

Section: Battery Electrode Preparationmentioning

confidence: 99%

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Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS₂/Nanotube Composite Lithium Ion Battery Electrodes

et al. 2016

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Advances in lithium ion batteries would facilitate technological developments inareas from electrical vehicles to mobile communications. While 2-dimensional systems like MoS2 are promising electrode materials due to their potentially high capacity, their poor ratecapability and low cycle-stability are severe handicaps. Here we study the electrical, mechanical and lithium storage properties of solution-processed MoS2/carbon nanotube anodes.Nanotube addition gives up to ×10 10 and ×40 increases in electrical conductivity and mechanical toughness respectively. The increased conductivity results in up to a ×100 capacity enhancement to ~1200 mAh/g (~3000 mAh/cm 3 ) at 0.1 A/g, while the improved toughness significantly boosts cycle stability. Composites with 20 wt% nanotubes combined high reversible capacity with excellent cycling stability (e.g. ~950 mAh/g after 500 cycles at 2 A/g) and high-rate capability (~600 mAh/g at 20 A/g). The conductivity, toughness and capacity scaled with nanotube content according to percolation theory while the stability increased sharply at the mechanical percolation threshold. We believe the improvements in conductivity and toughness obtained after addition of nanotubes can be transferred to other electrode materials such as silicon nanoparticles.Keywords: percolating, network, anode, mechanical 2 In recent years, lithium ion batteries (LIBs) have become the most common rechargeable power sources for portable electronic devices and electric vehicles. 1, 2 Nevertheless, they still suffer from several problems; their energy and especially power densities have not fulfilled their ultimate potential while their safety record is not unblemished. 3 A significant problem is that graphite, the dominant anode material used in LIBs, is limited by a relatively low theoretical capacity of 372 mAh/g. 4 As such, the development of the next-generation of LIBs, is expected to see the replacement of graphite-based anodes with alternative materials having higher capacity at similarly low cost. While a range of materials, including silicon, have been envisaged as future LIB anode materials, 4 of particular interest are 2-dimensional (2D) nanomaterials 5 such as graphene 6 and MoS2. 7 Over the last decade, 2D nano-materials have generated much excitement in the nanomaterials science community. [8][9][10] They come in many types including graphene, transition metal dichalcogenides (TMDs) and transition metal oxides (TMOs). These materials consist of covalently bonded monolayers which can stack via van der Waals interactions to form layered crystals. 8,9 Such 2D nanomaterials are often found as nanosheets with lateral size ranging from 10s of nm to microns and thickness of ~nm. 9 These materials have shown potential for applications 5 in both energy generation 11 and storage. 12 In the context of LIBs, exfoliated TMDs have received significant attention as prospective anode materials. 13,14 While bulk MoS2 was proposed 15 as a Li ion battery electrode material as early as 1980 due to its hi...

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Section: Abstract: Advances In Lithium Ion Batteries Would Facilitatementioning

confidence: 99%

Section: Battery Electrode Preparationmentioning

confidence: 99%

Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS₂/Nanotube Composite Lithium Ion Battery Electrodes

et al. 2016

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“…However, its limited energy storage capacity is a big obstacle to practical application. To solve this problem, the active functional components such as MoS 2 , silicon is introduced into the fibrous electrodes, so the electrochemical performance of the battery based on the above electrodes has been greatly improved ,. In order to obtain high‐performance fibrous batteries, Lin et al.…”

Section: Flexible Fibrous Lithium‐ion Batteriesmentioning

confidence: 99%

“…Luo et al. synthesized the MoS 2 nanosheet in situ on a carbon nanotube sheet . The few‐layered MoS 2 nanosheet on the carbon nanotube surface can be seen in the microstructure (Figure b).…”

Section: Flexible Fibrous Lithium‐ion Batteriesmentioning

confidence: 99%

Recent Progress in Flexible Fibrous Batteries

Xiang

et al. 2018

ChemElectroChem

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Flexible fibrous batteries have attracted unprecedented attention, owing to the development of wearable electronic devices, which have the advantages of flexibility, weavability, and miniaturization compared with conventional bulky batteries. In this Minireview, we summarize the latest developments in flexible fibrous batteries, including lithium‐ion batteries, lithium–sulfur batteries, sodium‐ion batteries, and so forth. We also discuss the future directions and challenges of flexible fibrous batteries.

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“…These fiber‐based SCs are lightweight and thus provide high areal, volumetric, and gravimetric energy storage performance. Some of the fiber‐based SCs make use of active materials, like graphene and carbon nanotubes, transition metal oxides and dichalcogenides, conducting polymers, and many other types of two‐dimensional (2D) layered nanomaterials . They have reasonable degrees of flexibility, i.e., they can be repeatedly bent without significantly altering their energy storage performance .…”

Section: Introductionmentioning

confidence: 99%

Elastic Fiber Supercapacitors for Wearable Energy Storage

Qin

Seyedin

Zhang

et al. 2018

Macromol. Rapid Commun.

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The development of wearable devices such as smart watches, intelligent garments, and wearable health-monitoring devices calls for suitable energy storage devices which have matching mechanical properties and can provide sufficient power for a reasonable duration. Stretchable fiber-based supercapacitors are emerging as a promising candidates for this purpose because they are lightweight, flexible, have high energy and power density, and the potential for easy integration into traditional textile processes. An important characteristic that is oftentimes ignored is stretchability-fiber supercapacitors should be able to accommodate large elongation during use, endure a range of bending motions, and then revert to its original form without compromising electrical and electrochemical performance. This article summarizes the current research progress on stretchable fiber-based supercapacitors and discusses the existing challenges on material preparation and fiber-based device fabrication. This article aims to help researchers in the field to better understand the challenges related to material design and fabrication approaches of fiber-based supercapacitors, and to provide insights and guidelines toward their wearability.

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Aligned carbon nanotube/molybdenum disulfide hybrids for effective fibrous supercapacitors and lithium ion batteries

Cited by 106 publications

References 39 publications

Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS₂/Nanotube Composite Lithium Ion Battery Electrodes

Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS₂/Nanotube Composite Lithium Ion Battery Electrodes

Recent Progress in Flexible Fibrous Batteries

Elastic Fiber Supercapacitors for Wearable Energy Storage

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Aligned carbon nanotube/molybdenum disulfide hybrids for effective fibrous supercapacitors and lithium ion batteries

Cited by 106 publications

References 39 publications

Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS2/Nanotube Composite Lithium Ion Battery Electrodes

Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS2/Nanotube Composite Lithium Ion Battery Electrodes

Recent Progress in Flexible Fibrous Batteries

Elastic Fiber Supercapacitors for Wearable Energy Storage

Contact Info

Product

Resources

About

Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS₂/Nanotube Composite Lithium Ion Battery Electrodes

Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS₂/Nanotube Composite Lithium Ion Battery Electrodes