Reliable and valid pyrite electrocatalysts supported on nitrogen-doped porous carbon sheets for advanced lithium sulfur batteries

Li, Wenda; Chen, Zhuang; Wang, Dezhu; Gong, Zhijiang; Mao, Changming; Liu, Jing; Peng, Hongrui; Zhang, Zhonghua; Li, Guicun

doi:10.1016/j.jpowsour.2019.226778

Cited by 22 publications

(9 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the environmental requirements of energy storage systems continue to increase, the use of petroleum by-products must be reduced, and biomass carbon materials, such as glucose, [83] bamboo [84] and biomass straw [85] have received increasing attention. Besides biomass nano porous carbon, MOF [86][87] -(Figure 4g, h)and COF [88] -derived nano porous carbon also exhibits excellent performance in cathode materials. When nitrogen atoms are introduced into carbon matrices, the electronegative nitrogen atoms with the lone pair of electrons have strong interactions in the carbon matrix.…”

Section: Nano Carbon-based Materialsmentioning

confidence: 99%

“…[109] Nano metal oxides have been certified to interact with LiPS via strong chemical bonds, thus restricting the shuttle effect. Particularly, oxygen-rich compounds (such asV 2 O 3 , [67] TiO 2 [58,73,110] (Figure 5f), SnO 2 , [87] Co 3 O 4 , [111] MnO 2 [77,112,113] ) have been successfully developed as LiPS traps to enhance the electrochemical stability. Ma et al proposed a new strategy involving the incorporation of a 3D functional spongy framework as LiPS reservoir layer, which had a hierarchical architecture composed of highly conductive Ni foam/graphene/carbon nanotubes/ MnO 2 nanoflakes (NGCM).…”

Section: Nano Metal Sulfides(oxide)mentioning

confidence: 99%

“…Nano metal oxides have been certified to interact with LiPS via strong chemical bonds, thus restricting the shuttle effect. Particularly, oxygen‐rich compounds (such asV 2 O 3 , [67] TiO 2 [58,73,110] (Figure 5f), SnO 2 , [87] Co 3 O 4 , [111] MnO 2 [77,112,113] ) have been successfully developed as LiPS traps to enhance the electrochemical stability. Ma et al.…”

Section: Nanomaterials For Interface Of Liquid Electrolyte Systemmentioning

confidence: 99%

See 2 more Smart Citations

Recent Progress in High‐Performance Lithium Sulfur Batteries: The Emerging Strategies for Advanced Separators/Electrolytes Based on Nanomaterials and Corresponding Interfaces

Wang

Deng

Wei

et al. 2021

Chemistry An Asian Journal

View full text Add to dashboard Cite

Lithium-sulfur (LiÀ S) batteries, possessing excellent theoretical capacities, low cost and nontoxicity, are one of the most promising energy storage battery systems. However, poor conductivity of elemental S and the "shuttle effect" of lithium polysulfides hinder the commercialization of LiÀ S batteries. These problems are closely related to the interface problems between the cathodes, separators/electrolytes and anodes. The review focuses on interface issues for advanced separators/electrolytes based on nanomaterials in LiÀ S batteries. In the liquid electrolyte systems, electrolytes/separators and electrodes system can be decorated by nano materials coating for separators and electrospinning nanofiber separators. And, interface of anodes and electrolytes/ separators can be modified by nano surface coating, nano composite metal lithium and lithium nano alloy, while the interface between cathodes and electrolytes/separators is designed by nano metal sulfide, nanocarbon-based and other nano materials. In all solid-state electrolyte systems, the focus is to increase the ionic conductivity of the solid electrolytes and reduce the resistance in the cathode/polymer electrolyte and Li/electrolyte interfaces through using nanomaterials. The basic mechanism of these interface problems and the corresponding electrochemical performance are discussed. Based on the most critical factors of the interfaces, we provide some insights on nanomaterials in high-performance liquid or state LiÀ S batteries in the future.

show abstract

Section: Nano Carbon-based Materialsmentioning

confidence: 99%

Section: Nano Metal Sulfides(oxide)mentioning

confidence: 99%

Section: Nanomaterials For Interface Of Liquid Electrolyte Systemmentioning

confidence: 99%

See 1 more Smart Citation

Recent Progress in High‐Performance Lithium Sulfur Batteries: The Emerging Strategies for Advanced Separators/Electrolytes Based on Nanomaterials and Corresponding Interfaces

Wang

Deng

Wei

et al. 2021

Chemistry An Asian Journal

View full text Add to dashboard Cite

show abstract

“…Although the effectiveness of the strategies, some amount of polysulfides still dissolved in the electrolyte and thus giving rise to the performance degradation. [27][28][29][30][31][32] This means that complete inhibition of the shuttle effect remains a big challenge for LiÀ S batteries.…”

Section: Introductionmentioning

confidence: 99%

“…Through strong chemical interactions between the polar moieties and polysulfides, the shuttle effect was significantly suppressed and the resulting sulfur cathodes realized a long cycling life. Although the effectiveness of the strategies, some amount of polysulfides still dissolved in the electrolyte and thus giving rise to the performance degradation . This means that complete inhibition of the shuttle effect remains a big challenge for Li−S batteries.…”

Section: Introductionmentioning

confidence: 99%

High Stable Sulfur Cathode with Self‐Healable and Physical Confining Polydimethylsiloxane Interlayer

Cui

Pan

2019

ChemElectroChem

View full text Add to dashboard Cite

Li‐sulfur (Li−S) batteries are promising high‐performance power sources, but their practical application is significantly impeded by the large volume change and diffusion of polysulfides (i. e., shuttle effect). Here we report that such issues can be effectively addressed by rationally designing a self‐healable and confining interfacial nanolayer. The goal is achieved by encapsulating individual sulfur microparticles with a polydimethylsiloxane (PDMS) nanoshell cross‐linked by dynamic imine bonding. The nanoshell well adapts the volume change, timely remediates itself after breaking, but also in situ confines the generated polysulfides, which ensures a “robust micro‐interface” between each sulfur particle and the electrolyte in the cycling process. Consequently, the resulting sulfur cathodes exhibit excellent energy‐storage performances even at a high sulfur loading. We believed that this design of a multifunctional micro‐interfacial layer provides an alternative insight into the intrinsic problems of sulfur cathodes.

show abstract

Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries

Xie

Mei

et al. 2021

ChemSusChem

View full text Add to dashboard Cite

Numerous nanostructured materials have been reported as efficient sulfur hosts to suppress the problematic “shuttling” of lithium polysulfides (LiPSs) in lithium‐sulfur (Li−S) batteries. However, direct comparison of these materials in their efficiency of suppressing LiPSs shuttling is challenging, owing to the structural and morphological differences between individual materials. This study introduces a simple route to synthesize a series of sulfur host materials with the same yolk‐shell nanospindle morphology but tunable compositions (Fe3O4, FeS, or FeS2), which allows for a systematic investigation into the specific effect of chemical composition on the electrochemical performances of Li−S batteries. Among them, the S/FeS2−C electrode exhibits the best performance and delivers an initial capacity of 877.6 mAh g−1 at 0.5 C with a retention ratio of 86.7 % after 350 cycles. This approach can also be extended to the optimization of materials for other functionalities and applications.

show abstract

Reliable and valid pyrite electrocatalysts supported on nitrogen-doped porous carbon sheets for advanced lithium sulfur batteries

Cited by 22 publications

References 45 publications

Recent Progress in High‐Performance Lithium Sulfur Batteries: The Emerging Strategies for Advanced Separators/Electrolytes Based on Nanomaterials and Corresponding Interfaces

Recent Progress in High‐Performance Lithium Sulfur Batteries: The Emerging Strategies for Advanced Separators/Electrolytes Based on Nanomaterials and Corresponding Interfaces

High Stable Sulfur Cathode with Self‐Healable and Physical Confining Polydimethylsiloxane Interlayer

Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries

Contact Info

Product

Resources

About