CeO2-webbed carbon nanotubes as a highly efficient sulfur host for lithium-sulfur batteries

Xiao, Dingfu; Lü, Chunxiang; Chen, Cheng-Meng; Yuan, Shuxia

doi:10.1016/j.ensm.2017.05.015

Cited by 99 publications

(36 citation statements)

References 46 publications

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“…However, the commercialization of Li–S batteries is still hampered by the notorious “shuttle effect” caused by lithium polysulfides (LiPSs), which eventually lead to low sulfur utilization and poor cycling performances. [ 6–9 ] To tackle this drawback, tremendous researches have been focused on designing the sulfur‐hosting cathode materials, such as diverse carbon‐based materials, [ 10,11 ] metal oxides, [ 12,13 ] conductive polymer materials, [ 14,15 ] and metal–organic frameworks. [ 16 ] Unsatisfactorily, although the shuttle effect has been alleviated to a certain extent, the sulfur host reduces the overall energy density of batteries as a large number of inactive materials is introduced.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline Encapsulated Amorphous V₂O₅ Nanowire‐Modified Multi‐Functional Separators for Lithium–Sulfur Batteries

et al. 2021

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Designing multi‐functional separators is one of the effective strategies for achieving high‐performance lithium–sulfur (Li–S) batteries. In this work, polyaniline (PANI) encapsulated amorphous vanadium pentoxide (V2O5) nanowires (general formula V2O5·nH2O and abbreviated as VOH) are synthesized by a facile in situ chemical oxidative polymerization method, and utilized as a basic building block for the preparation of functional interlayers on the commercial polypropylene (PP) separator, generating a VOH@PANI‐PP separator with multi‐functionalities. Compared to the crystalline V2O5, the amorphous V2O5 shows enhanced properties of polysulfide adsorption, catalytic activity, as well as ionic conductivity. Therefore, within the VOH@PANI‐PP separator, the amorphous V2O5 nanowire component contributes to the strong adsorption of polysulfides, the high catalytic activity for polysulfides conversion, and the high ionic conductivity. The PANI component further strengthens the above effects, improves the electrical conductivity, and enhances the flexibility of the modified separator. Benefiting from the synergistic effects, the VOH@PANI‐PP separator effectively suppresses polysulfide shuttling and improves the cycling stability of its composed Li–S batteries. This work provides a new research strategy for the development of efficient separators in rechargeable batteries by judiciously integrating the amorphous metal oxide with a conductive polymer.

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Section: Introductionmentioning

confidence: 99%

Polyaniline Encapsulated Amorphous V₂O₅ Nanowire‐Modified Multi‐Functional Separators for Lithium–Sulfur Batteries

et al. 2021

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“…[12] Chemical interaction methodologiesh ave becomee ffective in controlling the diffusion of LPS. Recently, polar materials such as nitrogen-doped carbon, [13,14] metal oxides (such as MnO 2 , [15] TiO 2 , [16] and CeO 2 , [17] etc. ), metal nitrides, [18,19] metal carbides, [20,21] metal sulfides, [22][23][24] and metal sulfides eparators( i.e.,M oS 2 /celgard) [25] have provent oh ave strong chemical interactions over pure metals with the polysulfide shuttling species.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Electrocatalytic Cathodes Derived from Metal–Organic Frameworks for Advanced Lithium‐Sulfur Batteries

Abdelkader

Rodene

Norouzi

et al. 2020

Chemistry A European J

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The rechargeable lithium-sulfur (Li-S) battery is a promising candidate for the next generation of energy storage technology,o wing to the high theoreticalc apacity,h igh specific energy density,a nd low cost of electrode materials. The main drawbacks in the development of long-life Li-S batteries are capacity fading and the sluggish kinetics at the cathode caused by the polysulfides shuttle. These limitations are addressed through the design of novel nanocagesc ontaining cobalt phosphide (CoP) nanoparticles embedded in highly porousnitrogen-doped carbon (CoP-N-GC) by thermal annealing of ZIF-67 in ar eductivea tmosphere followed by a phosphidation step using sodium hypophosphite. The CoP nanoparticles, with large surface area and uniform homogeneous distribution within the N-doped nanocage graphitic carbon,a ct as electrocatalysts to suppress the shuttle of soluble polysulfides through strong chemical interactions and catalyze the sulfur redox. As ar esult,t he S@CoP-N-GC electrode delivers an extremely high specific capacity of 1410 mA hg À1 at 0.1 C(1C= 1675 mA g À1)w ith an excellent coulombic efficiency of 99.7 %. Moreover,c apacity retention from 864 to 678 mA hg À1 is obtained after 460 cycles with a very low decay rate of 0.046 %p er cycle at 0.5 C. Therefore, the combination of the CoP catalyst and polar conductive porousc arbon effectively stabilizes the sulfur cathode, enhancing the electrochemical performance and stabilityo f the battery.

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“…30 As a stable oxide, CeO 2 is used in the elds of electronic devices, catalysis, and electrochemical energy storage due to its favorably thermal stability, catalytic activity, and suitable valence states. [31][32][33] The charge mass transfer resistance is greatly reduced, and the electrochemical performance is highly improved by constructing ternary perovskite structure. 34 Till now, the application of CeMnO 3 nanobers with perovskite structure in lithium-ion batteries has not been studied.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of perovskite CeMnO₃ nanofibers as an anode material for high performance lithium-ion batteries

Yue

et al. 2019

RSC Adv.

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CeO2-webbed carbon nanotubes as a highly efficient sulfur host for lithium-sulfur batteries

Cited by 99 publications

References 46 publications

Polyaniline Encapsulated Amorphous V₂O₅ Nanowire‐Modified Multi‐Functional Separators for Lithium–Sulfur Batteries

Polyaniline Encapsulated Amorphous V₂O₅ Nanowire‐Modified Multi‐Functional Separators for Lithium–Sulfur Batteries

Multifunctional Electrocatalytic Cathodes Derived from Metal–Organic Frameworks for Advanced Lithium‐Sulfur Batteries

Facile synthesis of perovskite CeMnO₃ nanofibers as an anode material for high performance lithium-ion batteries

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CeO2-webbed carbon nanotubes as a highly efficient sulfur host for lithium-sulfur batteries

Cited by 99 publications

References 46 publications

Polyaniline Encapsulated Amorphous V2O5 Nanowire‐Modified Multi‐Functional Separators for Lithium–Sulfur Batteries

Polyaniline Encapsulated Amorphous V2O5 Nanowire‐Modified Multi‐Functional Separators for Lithium–Sulfur Batteries

Multifunctional Electrocatalytic Cathodes Derived from Metal–Organic Frameworks for Advanced Lithium‐Sulfur Batteries

Facile synthesis of perovskite CeMnO3 nanofibers as an anode material for high performance lithium-ion batteries

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Polyaniline Encapsulated Amorphous V₂O₅ Nanowire‐Modified Multi‐Functional Separators for Lithium–Sulfur Batteries

Polyaniline Encapsulated Amorphous V₂O₅ Nanowire‐Modified Multi‐Functional Separators for Lithium–Sulfur Batteries

Facile synthesis of perovskite CeMnO₃ nanofibers as an anode material for high performance lithium-ion batteries