High rate lithium-sulfur batteries enabled by mesoporous TiO2 nanotubes prepared by electrospinning

Qian, Xinye; Yang, Xiaolong; Jin, Lina; Rao, Dewei; Yao, Shanshan; Shen, Xiangqian; Xiao, Kesong; Qin, Shibiao; Xiang, Jun

doi:10.1016/j.materresbull.2017.07.009

Cited by 31 publications

(15 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Using the electrospinning technique with subsequent heat treatment, Qian et al prepared mesoporous TiO 2 nanotubes (MTDNTs) as sulfur hosts. [180] The MTDNTs with anatase [182] Based on experimental observations and DFT calculations, they found that the oxygen vacancies boosted the polysulfide adsorption by TiO 2 , reducing the shuttle effect. In addition, the oxygen vacancies accelerated the charge transfer at the vacancy-enriched electrode surface, hence catalyzing the electrochemical conversion of active sulfur species.…”

Section: Titanium-based Oxidesmentioning

confidence: 99%

“…Using the electrospinning technique with subsequent heat treatment, Qian et al prepared mesoporous TiO 2 nanotubes (MTDNTs) as sulfur hosts. [ 180 ] The MTDNTs with anatasecrystal structures combined a hollow morphology with a high surface area of about 100 m 2 g −1 . Sulfur was encapsulated in MTDNTs by mixing MTDNTs with a sulfur/CS 2 solution to get MTDNT/S composites.…”

Section: Metal Compound Hostsmentioning

confidence: 99%

See 1 more Smart Citation

Host Materials Anchoring Polysulfides in Li–S Batteries Reviewed

Zhou

Danilov

Eichel

et al. 2020

Advanced Energy Materials

278

180

View full text Add to dashboard Cite

TU/e), the Netherlands. Currently, he is conducting his research at Forschungszentrum Jülich (Germany). His research interests focus on the design and development of effective strategies for high-performance Li-S batteries. Dmitri L. Danilov, Ph.D., has a background in physics and mathematics and obtained his M.Sc. at the Saint-Petersburg University in 1993. In 2003, he got Ph.D. degree from the University of Tilburg.In 2002, he joined Eurandom institute in Eindhoven University of Technology, being involved in various national and international research projects. His current research interests include mathematical modeling of complex electrochemical systems, including Li-ion and NiMH batteries, ageing and degradation processes, thin-film batteries, and advanced characterization methods. Starting 2017, he joined IEK-9 in the Forschungszentrum Jülich.

show abstract

Section: Titanium-based Oxidesmentioning

confidence: 99%

Section: Metal Compound Hostsmentioning

confidence: 99%

Host Materials Anchoring Polysulfides in Li–S Batteries Reviewed

Zhou

Danilov

Eichel

et al. 2020

Advanced Energy Materials

278

180

View full text Add to dashboard Cite

show abstract

“…The S‐TiO 2 cathode displayed excellent discharge reversible capacity of 58% after 50 cycles and the discharge capacity was 530 mAh g −1 after 50 cycles, which were attributed to the chemical adsorption of LiPSs by TiO 2 . Qian et al agreed with mesoporous TiO 2 nanotubes (MTDNTs) by electrospinning and subsequent thermal treatment method. Mesoporous TiO 2 nanotube wall was a superior material for S encapsulating and the hollow architecture was good for the fleet transmission of Li‐ion.…”

Section: Cathodementioning

confidence: 94%

A Review: Electrospun Nanofiber Materials for Lithium‐Sulfur Batteries

Liu

Deng

et al. 2019

Adv Funct Materials

152

View full text Add to dashboard Cite

Lithium-sulfur (Li-S) batteries are in the spotlight because their outstanding theoretical specific energy is much higher than those of the commercial lithium ion (Li-ion) batteries. Li-S batteries are tough competitors for futuredeveloping energy storage in the fields of portable electronics and electric vehicles. However, the severe "shuttle effect" of the polysulfides and the serious damage of lithium dendrites are main factors blocking commercial production of Li-S batteries. Owing to their superior nanostructure, electrospun nanofiber materials commonly show some unique characteristics that can simultaneously resolve these issues. So far, various novel cathodes, separators, and interlayers of electrospun nanofiber materials which are applied to resolve these challenges are researched. This review presents the fundamental research and technological development of multifarious electrospun nanofiber materials for Li-S cells, including their processing methods, structures, morphology engineering, and electrochemical performance. Not only does the review article contain a summary of electrospun nanofiber materials in Li-S batteries but also a proposal for designing electrospun nanofiber materials for Li-S cells. These systematic discussions and proposed directions can enlighten thoughts and offer ways in the reasonable design of electrospun nanofiber materials for excellent Li-S batteries in the near future.or conducting coagulation bath) is placed against the capillary. A thin polymer fiber membrane is deposited on the collector. The electrospun nanofibers have big potential for developing the outstanding energy storage systems due to their high surface area and excellent surface-to-volume ratio which can offer numerous active sites and controllable porous structure to buffer the huge volume changes during battery cycling and infiltrate the electrolyte. [18] Electrospun nanofiber membranes possess high porosity, large specific surface area, and controllable pore size, which will block "shuttle effect" of polysulfides and enhance the wettability for electrolytes. [19] Electrospinning technique and carbonization process are facile to manufacture freestanding nanofiber fabrics with controllable porous architecture and outstanding electrical conductivity. Electrospun porous nanofibers can come into a reservoir-like matrix for the reserve of active materials. First, the hierarchical pores in electrospun porous nanofibers can improve the reactive S reaction sites and block soluble polysulfides, thereby decreasing the "shuttling effect" of polysulfides during the electrochemical cycling. Second, electrospun porous fibers have excellent physical and mechanical properties, outstanding architecture, and superior electrical conductivity, which can enhance the transfer of Li-ions and electrons, endowing extraordinary electrochemical performance of the whole battery system. [20] Figure 2 shows phase and morphological evolutions of the electrospun nanofibers. By combining the electrospinning and other treatment (thermal, chem...

show abstract

“…Up until now, ZnO and TiO 2 nanotubes were fabricated using distinct approaches, such as, electrodeposition [ 8 , 35 ], hydrothermal [ 9 , 36 ], precipitation [ 10 , 37 ], electrospinning combined with calcination [ 38 , 39 ], and atomic layer deposition [ 13 , 40 ]. To our knowledge, there are only a few reports on the preparation of ZnO nanotubes obtained using electrospinning combined with RF magnetron sputtering and a calcination step [ 41 , 42 , 43 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of ZnO and TiO2 Nanotubes via Flexible Electro-Spun Nanofibers for Photocatalytic Applications

et al. 2021

View full text Add to dashboard Cite

Web-like architectures of ZnO and TiO2 nanotubes were fabricated based on a three-step process of templating polymer nanofibers produced by electrospinning (step 1). The electrospun polymer nanofibers were covered by radio-frequency magnetron sputtering with thin layers of semiconducting materials (step 2), with FESEM observations proving uniform deposits over their entire surface. ZnO or TiO2 nanotubes were obtained by subsequent calcination (step 3). XRD measurements proved that the nanotubes were of a single crystalline phase (wurtzite for ZnO and anatase for TiO2) and that no other crystalline phases appeared. No other elements were present in the composition of the nanotubes, confirmed by EDX measurements. Reflectance spectra and Tauc plots of Kubelka–Munk functions revealed that the band gaps of the nanotubes were lower than those of the bulk materials (3.05 eV for ZnO and 3.16 eV for TiO2). Photocatalytic performances for the degradation of Rhodamine B showed a large degradation efficiency, even for small quantities of nanotubes (0.5 mg/10 mL dye solution): ~55% for ZnO, and ~95% for TiO2.

show abstract

High rate lithium-sulfur batteries enabled by mesoporous TiO2 nanotubes prepared by electrospinning

Cited by 31 publications

References 35 publications

Host Materials Anchoring Polysulfides in Li–S Batteries Reviewed

Host Materials Anchoring Polysulfides in Li–S Batteries Reviewed

A Review: Electrospun Nanofiber Materials for Lithium‐Sulfur Batteries

Fabrication of ZnO and TiO2 Nanotubes via Flexible Electro-Spun Nanofibers for Photocatalytic Applications

Contact Info

Product

Resources

About