Enhanced performance of Lithium–Sulfur cells via novel nano-sized iron-plated sulfur composites

Kung, Chui-Yi; Chiang, Yu-Pei; Chan, Tzu-Ching; Chung, Sheng-Heng

doi:10.1016/j.jpowsour.2024.235365

Journal of Power Sources

2024

DOI: 10.1016/j.jpowsour.2024.235365

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Enhanced performance of Lithium–Sulfur cells via novel nano-sized iron-plated sulfur composites

Chui-Yi Kung,

Yu-Pei Chiang,

Tzu-Ching Chan

et al.

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Cited by 4 publications

References 38 publications

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Enhanced Performance of Lithium‐Sulfur Batteries Using Construction Wastes: A Sustainable Approach to High‐Loading Sulfur Cathodes

Huang,

Wu,

Chung

2024

ChemSusChem

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Advancing lithium–sulfur battery technology requires addressing both extrinsic cell‐fabrication and intrinsic material challenges to improve efficiency, cyclability, and environmental sustainability. A key challenge is the low conductivity of sulfur cathodes, which is typically managed by incorporating conductive carbon materials. These materials enhance the performance of sulfur cathodes by facilitating high sulfur loading and improving polysulfide retention. In line with green chemistry principles and circular economy concepts, this study explores the use of recycled materials—specifically recycled quartz and board—as substrates for graphene coatings in lithium–sulfur cells. Recycled quartz bricks and blocks, predominantly SiO2, and recycled shelf boards, rich in Al2O3, are successfully coated with graphene, which significantly improves polysulfide adsorption and overall battery performance. The graphene‐coated quartz exhibits high sulfur loading (8 mg cm‐2), exceptional charge‐storage capacity (1,114 mA·h g‐1), and long cycle stability (200 cycles) with an energy density of 19 mW·h cm‐2. This approach enhances the electrochemical performance of the lithium–sulfur cells and also aligns with sustainability goals by repurposing waste materials and minimizing environmental impact. This novel methodology demonstrates that integrating recycled materials can effectively address key challenges in lithium–sulfur battery technology, advancing both performance and environmental sustainability.

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Enhanced Performance of Lithium‐Sulfur Batteries Using Construction Wastes: A Sustainable Approach to High‐Loading Sulfur Cathodes

Huang,

Wu,

Chung

2024

ChemSusChem

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Targeted Electrocatalysis for High‐Performance Lithium–Sulfur Batteries

Nazir,

Pathak,

Hamal

et al. 2024

Energy & Environ Materials

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The intricate sulfur redox chemistry involves multiple electron transfers and complicated phase changes. Catalysts have been previously explored to overcome the kinetic barrier in lithium–sulfur batteries (LSBs). This work contributes to closing the knowledge gap and examines electrocatalysis for enhancing LSB kinetics. With a strong chemical affinity for polysulfides, the electrocatalyst enables efficient adsorption and accelerated electron transfer reactions. Resulting cells with catalyzed cathodes exhibit improved rate capability and excellent stability over 500 cycles with 91.9% capacity retention at C/3. In addition, cells were shown to perform at high rates up to 2C and at high sulfur loadings up to 6 mg cm−2. Various electrochemical, spectroscopic, and microscopic analyses provide insights into the mechanism for retaining high activity, coulombic efficiency, and capacity. This work delves into crucial processes identifying pivotal reaction steps during the cycling process at commercially relevant areal capacities and rates.

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Enhancing the anchoring, dissociation, and conversion efficiency of polysulfides: The role of CoFe@N-C cathode material with electron excitation for lithium-sulfur batteries

Zhang,

Feng,

Qiu

et al. 2025

Journal of Electroanalytical Chemistry

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Enhanced performance of Lithium–Sulfur cells via novel nano-sized iron-plated sulfur composites

Cited by 4 publications

References 38 publications

Enhanced Performance of Lithium‐Sulfur Batteries Using Construction Wastes: A Sustainable Approach to High‐Loading Sulfur Cathodes

Enhanced Performance of Lithium‐Sulfur Batteries Using Construction Wastes: A Sustainable Approach to High‐Loading Sulfur Cathodes

Targeted Electrocatalysis for High‐Performance Lithium–Sulfur Batteries

Enhancing the anchoring, dissociation, and conversion efficiency of polysulfides: The role of CoFe@N-C cathode material with electron excitation for lithium-sulfur batteries

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