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

IF 7.5 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY ChemSusChem Pub Date : 2024-11-07 DOI:10.1002/cssc.202402206
Yi-Chen Huang, Cheng-Che Wu, Sheng-Heng Chung
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Abstract

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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利用建筑垃圾提高锂硫电池性能:高负载硫阴极的可持续方法。
要推动锂硫电池技术的发展,就必须解决电池制造和材料内在两方面的挑战,以提高效率、循环性和环境可持续性。一个关键挑战是硫阴极的低导电性,这通常通过加入导电碳材料来解决。这些材料通过促进高硫含量和改善多硫化物保留来提高硫阴极的性能。根据绿色化学原则和循环经济理念,本研究探讨了在锂硫电池中使用回收材料(特别是回收石英和石英板)作为石墨烯涂层的基底。主要成分为二氧化硅的回收石英砖和石英块以及富含 Al2O3 的回收货架板成功地涂上了石墨烯,从而显著提高了多硫化物的吸附性和电池的整体性能。涂有石墨烯的石英具有高硫含量(8 mg cm-2)、优异的充电存储容量(1,114 mA-h g-1)和长循环稳定性(200 次循环),能量密度为 19 mW-h cm-2。这种方法不仅提高了锂硫电池的电化学性能,还通过废物再利用和最大限度地减少对环境的影响,实现了可持续发展的目标。这种新颖的方法表明,整合回收材料可以有效解决锂硫电池技术中的关键难题,同时提高性能和环境可持续性。
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来源期刊
ChemSusChem
ChemSusChem 化学-化学综合
CiteScore
15.80
自引率
4.80%
发文量
555
审稿时长
1.8 months
期刊介绍: ChemSusChem Impact Factor (2016): 7.226 Scope: Interdisciplinary journal Focuses on research at the interface of chemistry and sustainability Features the best research on sustainability and energy Areas Covered: Chemistry Materials Science Chemical Engineering Biotechnology
期刊最新文献
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