Construction of Electrocatalytic and Heat-Resistant Self-Supporting Electrodes for High-Performance Lithium–Sulfur Batteries

Zhang, Xuemei; Wei, Yunhong; Wang, Boya; Wang, Mei; Zhang, Yun; Wang, Qian; Wu, Hao

doi:10.1007/s40820-019-0313-x

Cited by 44 publications

(27 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This finding suggests the coexistence of Co 2+ and Co 3+ ions [29]. Additionally, two broad satellite peaks were observed at 789.1 and 804.2 eV, which were attributed to the Co-O bond [30]. After soaking in the Li 2 S 6 solution, the peaks of Co 2p were broadened, and new peaks appeared at 781.5 eV.…”

Section: Resultsmentioning

confidence: 82%

2D spinel ZnCo2O4 microsheet-coated functional separator for promoted redox kinetics and inhibited polysulfide dissolution

Yeon

Park

et al. 2021

Journal of Energy Chemistry

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 82%

2D spinel ZnCo2O4 microsheet-coated functional separator for promoted redox kinetics and inhibited polysulfide dissolution

Yeon

Park

et al. 2021

Journal of Energy Chemistry

View full text Add to dashboard Cite

“…5a and S16) exist two well-defined cathodic peaks and one sharp anodic peak. The former peaks correspond to the reduction process from sulfur to long-chain lithium polysulfides (LiPSs) and furtherly to Li 2 S 2 and Li 2 S. The latter peak is associated with reversed transformation of above process [46][47][48]. It can be noted that the second reduction peak of N-Ti 3 C 2 @CNT microspheres/S cathode is higher than that of N-Ti 3 C 2 @CNTs/S and significantly higher than N-Ti 3 C 2 /S cathode (Fig.…”

Section: Resultsmentioning

confidence: 99%

Rational Design of Porous N-Ti3C2 MXene@CNT Microspheres for High Cycling Stability in Li–S Battery

et al. 2019

View full text Add to dashboard Cite

HIGHLIGHTS • N-Ti 3 C 2 @CNT microspheres are successfully synthesized by the simple spray drying and one-step pyrolysis. • Within the microsphere, MXene nanosheets intimately interact with CNTs constructing porous and highly conductive network, which can provide strong immobilization for polysulfides. • N-Ti 3 C 2 @CNT microsphere/S cathode shows highly cycling stability in lithium-sulfur battery. ABSTRACT Herein, N-Ti 3 C 2 @CNT microspheres are successfully synthesized by the simple spray drying method. In the preparation process, HCl-treated melamine (HTM) is selected as the sources of carbon and nitrogen. It not only realizes in situ growth of CNTs on the surface of MXene nanosheets with the catalysis of Ni, but also introduces efficient N-doping in both MXene and CNTs. Within the microsphere, MXene nanosheets interconnect with CNTs to form porous and conductive network. In addition, N-doped MXene and CNTs can provide strong chemical immobilization for polysulfides and effectively entrap them within the porous microspheres. Above-mentioned merits enable N-Ti 3 C 2 @CNT microspheres to be ideal sulfur host. When used in lithium-sulfur (Li-S) battery, the N-Ti 3 C 2 @CNT microspheres/S cathode delivers initial specific capacity of 927 mAh g −1 at 1 C and retains high capacity of 775 mAh g −1 after 1000 cycles with extremely low fading rate (FR) of 0.016% per cycle. Furthermore, the cathode still shows high cycling stability at high Crate of 4 C (capacity of 647 mAh g −1 after 650 cycles, FR 0.027%) and high sulfur loading of 3 and 6 mg cm −2 for Li-S batteries.

show abstract

“…Reproduced with permission: Copyright 2019, Springer. 120 (C) Schematic of NCF/CNT/PEDOT@S and NCF/CNT@S electrodes. (D) Low-and (E) high-magnification scanning electron microscopy images of NCF/CNT/PEDOT@S. (F) Corresponding elemental mapping in the NCF/CNT/ PEDOT@S electrode.…”

Section: Skeleton Porous Carbonmentioning

confidence: 99%

Section: Carbon Substrates For Lsbs Flexible Cathodesmentioning

confidence: 99%

“…The cycling performance result shows NCF/CNT/PEDOT@S has an ideal capacity of 802 mA h g −1 after 100 cycles at 0.5 C (Figure 9G). Similarly, after introducing CNTs on MF, Zhang et al 120 prepared CTNF@ZIF‐67 composites by coprecipitation and impregnation. After heat treatment, not only porous carbon scaffolds were formed, but also CoS 2 hollow nanospheres were formed on the surface, where sulfur was introduced by liquid phase impregnation, serving as a physical and chemical barrier to inhibit the transition effect.…”

Section: Carbon Substrates For Lsbs Flexible Cathodesmentioning

confidence: 99%

See 1 more Smart Citation

Carbon‐based flexible self‐supporting cathode for lithium‐sulfur batteries: Progress and perspective

et al. 2021

View full text Add to dashboard Cite

The flexible self-supporting electrode can maintain good mechanical and electrical properties while retaining high specific capacity, which meets the requirements of flexible batteries. Lithium-sulfur batteries (LSBs), as a new generation of energy storage system, hold much higher theoretical energy density than traditional batteries, and they have attracted extensive attention from both the academic and industrial communities. Selection of a proper substrate material is important for the flexible self-supporting electrode.Carbon materials, with the advantages of light weight, high conductivity, strong structural plasticity, and low cost, provide the electrode with a large loading space for the active material and a conductive network. This makes the carbon materials meet the mechanical and electrochemical requirements of flexible electrodes. In this paper, the commonly used fabrication methods and recent research progresses of the flexible self-supporting cathode with a carbon material as the substrate are introduced. Various sulfur loading methods are summarized, which provides useful information for the structural design of the cathode. As the first review article of the carbon-based flexible self-supporting LSB cathodes, it provides valuable guidance for the researchers working in the field of LSB.

show abstract

Construction of Electrocatalytic and Heat-Resistant Self-Supporting Electrodes for High-Performance Lithium–Sulfur Batteries

Cited by 44 publications

References 55 publications

2D spinel ZnCo2O4 microsheet-coated functional separator for promoted redox kinetics and inhibited polysulfide dissolution

2D spinel ZnCo2O4 microsheet-coated functional separator for promoted redox kinetics and inhibited polysulfide dissolution

Rational Design of Porous N-Ti3C2 MXene@CNT Microspheres for High Cycling Stability in Li–S Battery

Carbon‐based flexible self‐supporting cathode for lithium‐sulfur batteries: Progress and perspective

Contact Info

Product

Resources

About