Double‐Shelled Nanocages with Cobalt Hydroxide Inner Shell and Layered Double Hydroxides Outer Shell as High‐Efficiency Polysulfide Mediator for Lithium–Sulfur Batteries

Zhang, Jin Tao; Han, Hwataik; Li, Zhen; Lou, Xiong Wen David

doi:10.1002/anie.201511632

Cited by 515 publications

(278 citation statements)

References 52 publications

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“…The design of multi-architectural and multi-functional cathode materials has the potential to overcome these challenges and has been one of the most researched strategies in recent years. Currently, physical routes including capillary force absorption [14,[51][52][53][54][55][56][57], shell coating [58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75], and chemical routes containing heteroatom-doped carbons [76][77][78][79][80][81][82][83][84][85][86][87][88][89][90] and metal-based additives [91][92][93][94][95][96][97][98][99]…”

Section: Fundamental Studies and Materials Selectionmentioning

confidence: 99%

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

Yang

Adair

et al. 2018

Electrochem. Energ. Rev.

314

201

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Lithium-sulfur (Li-S) batteries have been considered as one of the most promising energy storage devices that have the potential to deliver energy densities that supersede that of state-of-the-art lithium ion batteries. Due to their high theoretical energy density and cost-effectiveness, Li-S batteries have received great attention and have made great progress in the last few years. However, the insurmountable gap between fundamental research and practical application is still a major stumbling block that has hindered the commercialization of Li-S batteries. This review provides insight from an engineering point of view to discuss the reasonable structural design and parameters for the application of Li-S batteries. Firstly, a systematic analysis of various parameters (sulfur loading, electrolyte/sulfur (E/S) ratio, discharge capacity, discharge voltage, Li excess percentage, sulfur content, etc.) that influence the gravimetric energy density, volumetric energy density and cost is investigated. Through comparing and analyzing the statistical information collected from recent Li-S publications to find the shortcomings of Li-S technology, we supply potential strategies aimed at addressing the major issues that are still needed to be overcome. Finally, potential future directions and prospects in the engineering of Li-S batteries are discussed.

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Section: Fundamental Studies and Materials Selectionmentioning

confidence: 99%

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

Yang

Adair

et al. 2018

Electrochem. Energ. Rev.

314

201

View full text Add to dashboard Cite

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“…5(a). 133 Such a hollow CH@LDH polyhedra with complex shell structures not only maximize the advantages of hollow nanostructures for encapsulating a high content of sulfur (75 wt%), but also provide sufficient self-functionalized surfaces for chemical bonding with polysulphides to suppress their outward dissolution. As a result, the resulted CH@LDH/S electrode with relatively high sulfur loading of 3 mg/cm 2 showed excellent cycling stability at both 0.1 and 0.5 C over 100 cycles, much better than the reference C/S cathode as shown in Fig.…”

Section: Nanostructured Metal Hydroxides Application In Li-s Batmentioning

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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“…Nevertheless, the sulfur cathodes face several persistent problems, such as the poor conductivity of sulfur, high solubility of polysulfides in the electrolyte, and large volume changes during the cycling process. These result in low sulfur utilization, low coulombic efficiencies, and rapid capacity fading of Li-S batteries [6][7][8][9][10][11][12]. Many strategies have been applied to Li-S batteries to address these scientific issues in the past few years, mainly focusing on the construction of nanostructured sulfur cathode [13][14][15][16][17][18] and functionalization of the separator [19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Strong affinity of polysulfide intermediates to multi-functional binder for practical application in lithium–sulfur batteries

et al. 2016

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Binder, one of the most important battery components, plays a critical role in lithium-sulfur batteries. Poly(vinylidene difluoride) (PVDF), a commonly used binder in lithium-sulfur batteries, does not have a strong affinity to the intermediate polysulfides,however, leading to fast capacity fading with electrochemical cycling. Herein, copolymers of vinylidene difluoride with other monomers are used as multi-functional binders to enhance the electrochemical performance of lithium-sulfur batteries. Compared to the PVDF, the copolymer, poly(vinylidene difluoride-trifluoroethylene) (P(VDF-TRFE)) binder exhibits higher adhesion strength, less porosity, and stronger chemical interaction with polysulfides, which helps to keep the polysulfides within the cathode region, thereby improving the electrochemical performance of the lithium-sulfur battery. As a result, sulfur electrode with P(VDF-TRFE) binder delivered a high capacity of 801 mAh g -1 at 0.2 C after 100 cycles, which is nearly 80% higher capacity than the corresponding sulfur cathode with PVDF binder.

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Double‐Shelled Nanocages with Cobalt Hydroxide Inner Shell and Layered Double Hydroxides Outer Shell as High‐Efficiency Polysulfide Mediator for Lithium–Sulfur Batteries

Cited by 515 publications

References 52 publications

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

Recent development of metal compound applications in lithium–sulphur batteries

Strong affinity of polysulfide intermediates to multi-functional binder for practical application in lithium–sulfur batteries

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