Three-dimensional carbon foam decorated with SnO2 as multifunctional host for lithium sulfur batteries

Qiu, Hailong; Wang, Tao; Lv, Wenhan; Liu, Qiunan; Huang, Jianyu

doi:10.1016/j.jcis.2022.10.006

Cited by 11 publications

(5 citation statements)

References 44 publications

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“…[28][29][30][31] Nevertheless, increasing the weight ratio of bulk metal-based elements in Li-S batteries leads to a decrease in energy density. 9,12,14,30,[32][33][34][35][36][37] Due to their exceptional catalytic characteristics and boosted metal exploitation efficiency, single-atom catalysts (SACs) with fundamentally distributed metal atoms attached to appropriate scaffolds have received significant attention for an extensive variety of energy and chemical conversion processes. [38][39][40] At present, the research and development of SACs for their potential use in lithium-sulfur batteries is still in its early stages.…”

Section: Introductionmentioning

confidence: 99%

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Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Samawi,

Salman,

Hasan

et al. 2024

Mol. Syst. Des. Eng.

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Section: Introductionmentioning

confidence: 99%

“…28–31 Nevertheless, increasing the weight ratio of bulk metal-based elements in Li–S batteries leads to a decrease in energy density. 9,12,14,30,32–37…”

Section: Introductionmentioning

confidence: 99%

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Samawi,

Salman,

Hasan

et al. 2024

Mol. Syst. Des. Eng.

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“…Metal oxides such as SnO 2 have surface polarity, which can enhance the adsorption ability of polysulfides and the cycling stability of lithium–sulfur batteries. , Qiu et al prepared a 3D carbon foam with SnO 2 decoration as a sulfur carrier, which delivered 389.8 mAh·g –1 after 300 cycles at 0.5C. Xiao et al obtained SnO 2 /C hollow spheres with superior cycling stability, the capacity retention of which was 67% at 1C after 600 cycles.…”

Section: Introductionmentioning

confidence: 99%

Good Cycling Stabilities of Sn/SnO₂/C/S Composite Electrodes with Introduced Active Tin Atoms in Li–S Batteries

Wang,

Lang,

Xiao

et al. 2024

Langmuir

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Polysulfides are easily dissolved in the electrolyte of Li−S batteries after long cycles. Sn atom modification electrodes are beneficial for improving cycling stabilities of Li−S batteries. However, the influence of Sn atoms on the structure and electrochemical performance of SnO 2 /C composite materials is not explored. Sn/SnO 2 /C composite materials are developed as sulfur carriers in Li−S batteries in our work. In addition, the cycling stability mechanism of Sn/SnO 2 /C/S composite electrodes is also elucidated. Results show that introduced Sn/SnO 2 /C/S composite electrodes display good cycling stability (420.1 mAh•g −1 at 1C after 1000 cycles) in Li−S batteries. The sulfur load of Sn/ SnO 2 /C/S composite electrodes is 80 wt % (2 mg −1 •cm −2 ). The introduction of Sn into Sn/SnO 2 /C/S composite electrodes plays three roles. The first role is to enhance the structural stability of SnO 2 . The second role is to help adsorb active sulfur ions. The last role is to promote the electron transportation ability during the initial discharging/charging process. Sn/SnO 2 /C/S composite electrodes are beneficial for inhibiting the dissolution of polysulfides in electrolytes after long cycles.

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“…It can not only enhance the dynamics of LiPSs conversion reactions, but also effectively inhibit the shuttle effect of LiPSs. Previous studies have made great progress via adding transition metal sulfides, [ 7–9 ] phosphates, [ 10–12 ] oxides, [ 13–15 ] and nitrides [ 16–18 ] to sulfur cathodes to adsorb LiPSs or catalyze LPSs conversion.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous Built‐In Electric Field in C₃N₄‐CoSe₂ Modified Multifunctional Separator with Accelerating Sulfur Evolution Kinetics and Li Deposition for Lithium‐Sulfur Batteries

Liang,

Peng,

Shen

et al. 2023

Small

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The discovery of the heterostructures that is combining two materials with different properties has brought new opportunities for the development of lithium sulfur batteries (LSBs). Here, C3N4‐CoSe2 composite is elaborately designed and used as a functional coating on the LSBs separator. The abundant chemisorption sites of C3N4‐CoSe2 form chemical bonding with polysulfides, provides suitable adsorption energy for lithium polysulfides (LiPSs). More importantly, the spontaneously formed internal electric field accelerates the charge flow in the C3N4‐CoSe2 interface, thus facilitating the transport of LiPSs and electrons and promoting the bidirectional conversion of sulfur. Meanwhile, the lithiophilic C3N4‐CoSe2 sample with catalytic activity can effectively regulate the uniform distribution of lithium when Li+ penetrates the separator, avoiding the formation of lithium dendrites in the lithium (Li) metal anode. Therefore, LSBs based on C3N4‐CoSe2 functionalized membranes exhibit a stable long cycle life at 1C (with capacity decay of 0.0819% per cycle) and a large areal capacity of 10.30 mAh cm−2 at 0.1C (sulfur load: 8.26 mg cm−2, lean electrolyte 5.4 µL mgs−1). Even under high‐temperature conditions of 60 °C, a capacity retention rate of 81.8% after 100 cycles at 1 C current density is maintained.

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Three-dimensional carbon foam decorated with SnO2 as multifunctional host for lithium sulfur batteries

Cited by 11 publications

References 44 publications

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Good Cycling Stabilities of Sn/SnO₂/C/S Composite Electrodes with Introduced Active Tin Atoms in Li–S Batteries

Spontaneous Built‐In Electric Field in C₃N₄‐CoSe₂ Modified Multifunctional Separator with Accelerating Sulfur Evolution Kinetics and Li Deposition for Lithium‐Sulfur Batteries

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Three-dimensional carbon foam decorated with SnO2 as multifunctional host for lithium sulfur batteries

Cited by 11 publications

References 44 publications

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Good Cycling Stabilities of Sn/SnO2/C/S Composite Electrodes with Introduced Active Tin Atoms in Li–S Batteries

Spontaneous Built‐In Electric Field in C3N4‐CoSe2 Modified Multifunctional Separator with Accelerating Sulfur Evolution Kinetics and Li Deposition for Lithium‐Sulfur Batteries

Contact Info

Product

Resources

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Good Cycling Stabilities of Sn/SnO₂/C/S Composite Electrodes with Introduced Active Tin Atoms in Li–S Batteries

Spontaneous Built‐In Electric Field in C₃N₄‐CoSe₂ Modified Multifunctional Separator with Accelerating Sulfur Evolution Kinetics and Li Deposition for Lithium‐Sulfur Batteries