Metal oxide nanoprism-arrays assembled in N-doped carbon foamy nanoplates that have efficient polysulfide-retention for ultralong-cycle-life lithium–sulfur batteries

Hu, Nantao; Dong, Xinwei; Zhang, Chaoran; Hu, Nantao

doi:10.1039/c8ta03012j

Cited by 32 publications

(15 citation statements)

References 55 publications

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“…[10] Unfortunately, most carbon materials are intrinsically nonpolar so that their interaction toward polar LiPSs is rather weak, harmful to the cycling stability of Li−S batteries. [11][12][13][14][15] Other host materials that chemically interact with LiPSs have been more promising. [16,17] For example, transition-metal oxides (TMOs) with abundant of active adsorption sites, which can chemically adsorb LiPSs and retain their capability, are regarded as effective sulfur hosts.…”

Section: Introductionmentioning

confidence: 99%

“…[27,28] Besides, the high adsorption energy for LiPSs and good electrical contact between electrolyte and active material bring ZnO greater potential for improving the cyclic stability of Li−S batteries. [12,[29][30][31][32][33][34] Nickel oxide has been considered as a promising host which can significantly trap LiPSs through intermolecular interactions. [6,35] Further, it has been proved that the catalytic ability of NiO-based materials can to some extent accelerate the conversion kinetics of intermediate LiPSs.…”

Section: Introductionmentioning

confidence: 99%

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Yolk−Shell Nano ZnO@Co‐Doped NiO with Efficient Polarization Adsorption and Catalysis Performance for Superior Lithium−Sulfur Batteries

Liu

Zeng

et al. 2020

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Achieving strong adsorption and catalytic ability toward polar lithium polysulfide species (LiPSs) of the sulfur host in lithium–sulfur (Li–S) batteries is essential for their electrochemical cyclic stability. Herein, a strategy of “self‐termination of ion exchange” is put forward to synthesize the novel yolk‐shell sulfur host composed of ZnO nanoparticles confined in Co‐doped NiO (CDN) polyhedron (ZCCDN). After sulfur infiltration, the obtained S/ZCCDN cathode achieves excellent performance of 738.56 mAh g−1 after 500 cycles at 0.5 C with a very low capacity decay rate of only 0.048% per cycle. Even at 1 C, 501.05 mAh g−1 could be retained after 500 cycles, suggesting a capacity decay ratio of only 0.076% per cycle. The good cycle performance is attributed to the improved LiPSs’ conversion kinetics, which originates from ZCCDN's sturdy chemical affinity and strong catalytic ability to polar LiPSs. For the first time, by electron holography, the local interfacial polarization electric field is clarified to be existed in the material which is conducive to the capture of LiPSs and the migration of electrons and Li+ from the mesopores. This work provides a rational way for the use of zeolitic imidazolate frameworks (ZIFs) and development of cathode materials for Li–S batteries.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Yolk−Shell Nano ZnO@Co‐Doped NiO with Efficient Polarization Adsorption and Catalysis Performance for Superior Lithium−Sulfur Batteries

Liu

Zeng

et al. 2020

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“…In this case, nanostructured metal sulfides, nitrides, and oxides (such as CoS 2 , MoS 2 , TiN, ZnO, and MnO 2 ) as well as heteroatom doping have been utilized to favor the dynamics of LiPS redox reaction and to suppress the shuttle effect via the polar immobilization or covalent interaction with LiPS . Wang's group fabricated a valid sulfur host, namely, MnO 2 grown on N‐doped hollow porous carbon nanospheres, which greatly suppressed LiPS shuttle effect .…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Heterostructures for Polysulfide Suppression in High‐Performance Lithium‐Sulfur Cathode

Chen

Jamil

et al. 2018

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The commercialization of lithium‐sulfur (Li‐S) batteries is greatly hindered due to serious capacity fading caused by the polysulfide shuttling effect. Optimizing the structural configuration, enhancing reaction kinetics of the sulfur cathode, and increasing areal sulfur loading are of great significance for promoting the commercial applications of Li‐S batteries. Herein, the multifunctional polysulfide scavengers based on nitrogen, sulfur co‐doped carbon cloth (DCC), which is supported by flower‐like MoS2 (1T‐2H) decorated with BaMn0.9Mg0.1O3 perovskite particle (PrNP) and carbon nanotubes (CNTs), namely, DCC@MoS2/PrNP/CNTs, are delicately designed and synthesized. The physical confinement, chemical coupling, and catalysis conversion for active sulfur are achieved simultaneously in this polysulfide motif. Due to these merits, the as‐fabricated self‐supported DCC@MoS2/PrNP/CNTs/S manifests an excellent reversible areal capacity of 4.75 mAh cm−2 with an ultrahigh sulfur loading of 5.2 mg cm−2 at the 50th cycle. The outstanding cycling stability is obtained upon 800 cycles with a large reversible capacity of 871 mAh g−1 and a negligible fading rate of 0.02% per cycle at a rate of 1.0 C, suggesting its promising prospects for the commercial success of high‐performance Li‐S batteries toward flexible electronic devices and energy storage equipment.

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“…The raw biomass cotton acts as carbon conductivity skeletons. In the process of solution‐combustion, the rapid decomposition of zinc nitrate produced lots of heats and gases, which was able to convert sucrose into thinner carbon nanosheets distributed on the cotton‐derived carbon fiber‘s surface [16] . Then, the samples were heated at high temperature (1000 °C) to make sure the cotton convert to carbon.…”

Section: Resultsmentioning

confidence: 99%

Carbon Foam Fibers with a Concentric Tube‐Core/Three‐Dimensional Nanosheet‐Sheath Structure for High‐Performance Lithium‐Sulfur Batteries

et al. 2021

ChemElectroChem

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Owing to their superior electrical conductivity and large specific surface areas, carbon nanomaterials are widely applied as hosts for lithium‐sulfur (Li−S) batteries. However, it is challenging to design and prepare hierarchical porous carbon nanomaterials with unique structures that have excellent performances for Li−S batteries. Herein, hierarchical carbon foam fibers (HPCFs) with a concentric tube‐core/three‐dimensional nanosheet‐sheath structure have been rationally designed and fabricated through solution‐combustion and etching methods, and are suitable for Li−S batteries. The as‐prepared HPCFs, with a sulfur loading of 72 wt.%, possess a high initial discharge capacity of 1097.3 mAh g−1 and 68.7 % retention after 500 cycles at 0.2 C. The as‐designed structure can efficiently improve conductivity, suppress the dissolution of polysulfides, and provide quick electron‐/ion‐transfer channels, which are beneficial for designing advanced sulfur cathodes for high‐performance Li−S batteries.

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Metal oxide nanoprism-arrays assembled in N-doped carbon foamy nanoplates that have efficient polysulfide-retention for ultralong-cycle-life lithium–sulfur batteries

Abstract: A novel ordered structure based on ZnO nanoprism-arrays was fabricated for ultralong-cycle-life Li–S batteries.

Cited by 32 publications

References 55 publications

Yolk−Shell Nano ZnO@Co‐Doped NiO with Efficient Polarization Adsorption and Catalysis Performance for Superior Lithium−Sulfur Batteries

Yolk−Shell Nano ZnO@Co‐Doped NiO with Efficient Polarization Adsorption and Catalysis Performance for Superior Lithium−Sulfur Batteries

Multifunctional Heterostructures for Polysulfide Suppression in High‐Performance Lithium‐Sulfur Cathode

Carbon Foam Fibers with a Concentric Tube‐Core/Three‐Dimensional Nanosheet‐Sheath Structure for High‐Performance Lithium‐Sulfur Batteries

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