Rational design of a metal–organic framework host for sulfur storage in fast, long-cycle Li–S batteries

Zhou, Junwen; Li, Rui; Fan, Xinxin; Chen, Yifa; Han, Ruodan; Li, Wei; Zheng, Jie; Wang, Bo; Li, Xingguo

doi:10.1039/c4ee01382d

Cited by 436 publications

(357 citation statements)

References 59 publications

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“…The hollow carbon shell of S/HCSF@C can efficiently encapsulate the polysulfide derived from the inner S/HCSF core and significantly reduce the "shuttling effect". The hollow-in-hollow structured HCSF@C proposed in this work is a promising candidate for use in high-performance sulfur/carbon cathodes, and we believe that the synthesis of hollowin-hollow structures can be extended to produce new carbon nanostructures with other inner carbon materials, such as graphene, porous carbon tubes, and metalorganic framework derived porous carbon for use as high-performance electrode materials [49,50].…”

Section: Discussionmentioning

confidence: 96%

Hollow-in-hollow carbon spheres with hollow foam-like cores for lithium–sulfur batteries

et al. 2015

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Lithium-sulfur batteries have attracted increasing attention because of their high theoretical capacity. Using sulfur/carbon composites as the cathode materials has been demonstrated as an effective strategy to optimize sulfur utilization and enhance cycle stability as well. In this work, hollow-in-hollow carbon spheres with hollow foam-like cores (HCSF@C) are prepared to improve both capability and cycling stability of lithium-sulfur batteries. With high surface area and large pore volumes, the loading of sulfur in HCSF@C reaches up to 70 wt.%. In the resulting S/HCSF@C composites, the outer carbon shell serves as an effective protection layer to trap the soluble polysulfide intermediates derived from the inner component. Consequently, the S/HCSF@C cathode retains a high capacity of 780 mAh/g after 300 cycles at a high charge/discharge rate of 1 A/g.

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Section: Discussionmentioning

confidence: 96%

Hollow-in-hollow carbon spheres with hollow foam-like cores for lithium–sulfur batteries

et al. 2015

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“…Moreover, they raise the energy barrier for charge transfer and hinder the ion diffusion by blocking the MOF channels. 61 Recently, Zheng et al introduced the Ni-based metal organic framework (Ni-MOF), Ni 6 (BTB) 4 (BP) 3, as a sulfur host: very significant improvement in cycling stability was achieved. 58 Besides the LiPSs confinement in the pores of the Ni-MOF, the soluble LiPSs are further immobilized by the Lewis acid-base interaction.…”

Section: Lewis Acid-base Interaction With Polysulfidesmentioning

confidence: 99%

“…59 Because of this, some MOFs, including ZIF-8 60,61 and MIL-101(Cr), 62 were used directly as a host material to encapsulate sulfur/polysulfides, and showed promising cycling performance. More importantly, MOFs can trap the soluble polysulfides owing to their binding to the transition metal ions and the functional groups on the surface.…”

Section: Lewis Acid-base Interaction With Polysulfidesmentioning

confidence: 99%

Review—The Importance of Chemical Interactions between Sulfur Host Materials and Lithium Polysulfides for Advanced Lithium-Sulfur Batteries

Pang

Liang

Kwok

et al. 2015

J. Electrochem. Soc.

289

196

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This overview details the recently recognized importance of strong chemical interactions between sulfur host materials and lithium polysulfides/sulfide to improve the performance of Li-S batteries, especially with respect to cycle life. Sulfur hosts consisting of: functionally modified surfaces, metal oxides and carbides that rely on either polar interactions or the thiosulfate mechanism for sulfide binding, metal-organic frameworks that exhibit Lewis-acid behavior, and functional polymers are reviewed. We summarize a variety of studies that explore the nature and strength of the interaction of these materials with polysulfides and its effect on cycle life, showing that capacity fading is reduced to as low as 0.03% per cycle with effective functional cathode host surfaces. The ever-growing demand and consumption of energy as well as the depletion of fossil fuels and its associated environmental pollution have driven scientists to pursue renewable energy alternatives. Photovoltaic panels and wind farms are being installed worldwide. However, to fully utilize the electricity generated by these inherently intermittent sources, rechargeable battery systems are a vital part of the system, enabling grid-scale electric storage and benefitting electric and hybrid-electric vehicular transport. 1Amongst all the rechargeable battery systems that have serviced mankind for decades, lithium-ion batteries (LIBs) have dominated the commercial battery market, owing to their high cell voltage, low self-discharge rate, and stable cycling performance.2-4 However, the applications of these batteries have been somewhat limited due to their low energy density (100-220 W·h·kg −1 ) and high cost. 5,6 These battery systems -which consist of a graphite anode and a lithium metal oxide cathode and rely on a Li-ion intercalation mechanismare very attractive for the electric vehicle market. Nonetheless, they do not enable a long driving range unless very large battery packs are utilized, which comes at very high cost and weight. Thus the goal of traveling 500 km per charge is still unattainable. Electrochemical systems that offer a higher capacity and energy density as well as a longer life-time at a lower cost are becoming promising options, but are definitely challenging to bring into practice.Lithium-sulfur (Li-S) batteries are considered as one of the most promising candidates for the next-generation energy storage systems, because of their high theoretical energy density and the natural abundance of sulfur.7-10 A conventional Li-S cell consists of a lithium metal anode and an elemental sulfur cathode in an ether-based electrolyte. The coupling of the high-capacity electrodes of lithium (3840 mA·h·g −1 ) and sulfur (1675 mA·h·g −1 ) affords an average cell voltage of 2.2 V and a theoretical energy density of 2570 W·h·kg −1 . The reversible conversion reaction between sulfur and lithium sulfide (Li 2 S) is accompanied by a series of intermediate lithium polysulfides (LiPSs, Li 2 S n , 2 ≤ n ≤ 8). The electrochemical reactions of Li-S batte...

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“…Since then, various groups have demonstrated that other MOFs can be adopted. 39,156,157,[159][160][161] Among which, Xiao's group proposed a mechanism of Lewis acid-base interactions between polysulphides and MOF. 39 They used the Ni-MOF with interwoven mesopores (;2.8 nm) and micropores (;1.4 nm) as an ideal matrix to confine polysulphides.…”

Section: Nanostructured Mofs Application In Li-s Batteriesmentioning

confidence: 99%

“…156 They usually have even richer pore structure and larger specific surface area than porous carbon. 157 Thus, Tarascon pioneered the use of the MOF named MIL-100(Cr) as host material for sulfur impregnation.…”

Section: Nanostructured Mofs Application In Li-s Batteriesmentioning

confidence: 99%

Recent development of metal compound applications in lithium–sulphur batteries

Lai

2017

J. Mater. Res.

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Lithium-sulphur (Li-S) batteries are one of the most promising candidates for the next generation of energy storage systems to alleviate the energy crisis. However, Li-S batteries' commercialization faces the challenges of low active materials utilization, poor cycling life, and low energy density. Recently, tremendous progress has been achieved in improving the electrode performances and tap density by using the nanostructured metal compounds in Li-S batteries. In this review, we not only present the latest various nanostructured metal compounds applications in Li-S batteries, including metal oxides, metal sulphides, metal carbides, metal nitrides, and metal organic frameworks, but also we focus on the interaction mechanisms between these polar metal compounds with polysulphides. The issues and bottlenecks of these metal compounds are concluded and the corresponding available solutions to address these issues are proposed. This systematic discussion and proposed strategies can offer avenues to the practical application of Li-S batteries in the near future.

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Rational design of a metal–organic framework host for sulfur storage in fast, long-cycle Li–S batteries

Cited by 436 publications

References 59 publications

Hollow-in-hollow carbon spheres with hollow foam-like cores for lithium–sulfur batteries

Hollow-in-hollow carbon spheres with hollow foam-like cores for lithium–sulfur batteries

Review—The Importance of Chemical Interactions between Sulfur Host Materials and Lithium Polysulfides for Advanced Lithium-Sulfur Batteries

Recent development of metal compound applications in lithium–sulphur batteries

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