A high-throughput screening permeability separator with high catalytic conversion kinetics for Li–S batteries

Jiang, Yuting; Liang, Pei; Tang, Ming‐Jian; Sun, Shi‐Peng; Min, Huihua; Han, Jiachen; Shen, Xiaodong; Yang, Hao; Chao, Dongliang; Wang, Jin

doi:10.1039/d2ta04592c

Cited by 20 publications

(14 citation statements)

References 57 publications

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“…This result was caused by the Lewis acid–base interaction between the unoccupied orbitals of the surface Ti atom and S x 2− . 41 Besides, the shift (0.2 eV) of the main peak in N 1s further confirmed the adsorption between pyridine-N in g-C 3 N 4 and Li 2 S 6 (Fig. S14d†).…”

Section: Resultssupporting

confidence: 60%

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Developing a MXene quantum dot-based separator for Li–S batteries

Yang

et al. 2023

J. Mater. Chem. A

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Section: Resultssupporting

confidence: 60%

“…. 41 Besides, the shi (0.2 eV) of the main peak in N 1s further conrmed the adsorption between pyridine-N in g-C 3 N 4 and Li 2 S 6 (Fig. S14d †).…”

Section: Resultsmentioning

confidence: 86%

Developing a MXene quantum dot-based separator for Li–S batteries

Yang

et al. 2023

J. Mater. Chem. A

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“…In contrast, the SWCNT/PP and COF-PDA/PP cells suffered from poorer capacity retention, which was 424 and 328 mAh g –1 , respectively. The performances delivered by the COF-PDA/SWCNT/PP cell also revealed great competitiveness with the recent studies relating to functional-separator engineering (Table S2), ,,− which further demonstrated the extremely attractive advantage of such separator design for performing improvement of Li–S batteries. The enhancements in the capacity, rate performance, and cycling ability resulted from the highly conductive nature, fast charge/mass transportation, and high LiPSs affinity of the as-developed COF-PDA/SWCNT modification layer, which immobilized LiPSs species and effectively catalyzed their conversion, resulting in effective inhibition of the shuttle effect and the resultant enhancement in the battery performance.…”

Section: Resultsmentioning

confidence: 69%

Polydopamine-Assisted In Situ Formation of a Covalent Organic Framework on Single-Walled Carbon Nanotubes to Multifunctionalize Separators for Advanced Lithium–Sulfur Batteries

Han

Yang

Sun

et al. 2023

ACS Sustainable Chem. Eng.

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Lithium–sulfur (Li–S) batteries are regarded to be one of the most promising energy storage systems owing to their high energy density. Nevertheless, polysulfide shuttle and self-discharge severely hinder their commercial production. To address these issues, a novel multifunctional separator (COF-PDA/SWCNT/PP) is developed by modifying the commercial polypropylene (PP) separator via in situ growth of a covalent organic framework (COF) functional layer on the gutter layer made from single-walled carbon nanotubes (SWCNTs). SWCNTs in this configuration works as the gutter layer to reduce the pore size of the PP separator and offers lithium ion/electron transmission channels, while the COF-PDA barrier layer acts as a robust and efficient shield against polysulfide shuttling via both physical confinement and chemical interactions. Notably, the simultaneous generation of polydopamine (PDA) can get rid of defects in COFs by welding the COF nanoparticles, enhancing the mechanical property of the ultrathin COF-PDA layer. On the basis of the multilayer architecture, the modified separator not only effectively suppresses the shuttle effect but also realizes rapid lithium-ion transportation. As expected, the battery with a COF-PDA/SWCNT/PP separator presents a reversible specific capacity of 1031 mAh g–1 over 100 cycles at 0.2 C. Moreover, a high reversible capacity of 642 mAh g–1 over 500 cycles even at 1 C and outstanding anti-self-discharge behavior by a low capacity-attenuation of 4.6% over 7 days are also acquired for the cells implementing the as-developed separator. Hence, this proposed strategy of multilayer modified separators will open a new route to prepare high-performance Li–S batteries.

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“…5h and listed in Table S2. † 8,14,15,[48][49][50][53][54][55][56][57][58][59][60][61][62][63][64] To fulll the demand for practical applications of Li-S batteries, the electrochemical performance at high sulfur loading was investigated. Fig.…”

Section: Resultsmentioning

confidence: 99%

Amorphous/crystalline heterostructure design enables highly efficient adsorption–diffusion–conversion of polysulfides for lithium–sulfur batteries

Wu¹,

Shen²,

Fei³

et al. 2023

J. Mater. Chem. A

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A high-throughput screening permeability separator with high catalytic conversion kinetics for Li–S batteries

Abstract: The practical application of Li–S batteries is seriously hindered by intricate lithium polysulfide shuttling and sluggish electrochemical conversion kinetics. Separator modification has been demonstrated as an effective strategy to solve...

Cited by 20 publications

References 57 publications

Developing a MXene quantum dot-based separator for Li–S batteries

Developing a MXene quantum dot-based separator for Li–S batteries

Polydopamine-Assisted In Situ Formation of a Covalent Organic Framework on Single-Walled Carbon Nanotubes to Multifunctionalize Separators for Advanced Lithium–Sulfur Batteries

Amorphous/crystalline heterostructure design enables highly efficient adsorption–diffusion–conversion of polysulfides for lithium–sulfur batteries

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