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Mitigation of Polysulfide Shuttling by Interlayer/Permselective Separators in Lithium–Sulfur Batteries
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2020-07-30 , DOI: 10.1021/acsaem.0c01354 Shruti Suriyakumar 1 , A. Manuel Stephan 1
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2020-07-30 , DOI: 10.1021/acsaem.0c01354 Shruti Suriyakumar 1 , A. Manuel Stephan 1
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A lithium–sulfur batteries system has been identified as a potential successor to lithium-ion batteries owing to its appealing properties such as extremely high theoretical specific capacity, energy density, low cost, and environmental benignancy. Despite these unique advantages, commercialization of this system is still hampered due to the inevitable shuttling of polysulfide between the electrodes which causes self-discharge and poor cycle life. This undesirable polysulfide shuttling can be mitigated by the introduction of a permselective/interlayer separator between the two electrodes. This contribution reviews state-of-the-art interlayer/permselective separators in view of their potential applications in lithium–sulfur batteries. This review mainly encompasses a brief description of the mechanism of inhibition of polysulfide shuttle by different types of interlayer/permselective materials coated on porous polyolefin membranes. The architecture and working principles of lithium–sulfur batteries are described. The characterization techniques which are used as a tool to analyze the membranes before and after cycling are discussed as well. The road ahead for Li–S batteries and the importance of permselective membranes in order to improve the electrochemical properties are emphasized.
中文翻译：
锂-硫电池中的层间/渗透选择性隔离膜减轻多硫化物的穿梭
锂硫电池系统因其极具吸引力的特性（例如极高的理论比容量，能量密度，低成本和环境友好性）而被认为是锂离子电池的潜在继任者。尽管具有这些独特的优点，但是由于电极之间不可避免地发生多硫化物的穿梭，该系统的商业化仍然受到阻碍，这会导致自放电和较差的循环寿命。这种不希望的多硫化物穿梭可以通过在两个电极之间引入渗透选择性/层间隔离物来减轻。考虑到它们在锂硫电池中的潜在应用，该论文回顾了最新的中间层/选择性渗透隔膜。这篇综述主要包括对通过涂覆在多孔聚烯烃膜上的不同类型的中间层/渗透选择材料抑制多硫化物穿梭的机理的简要描述。描述了锂硫电池的结构和工作原理。还讨论了用作循环之前和之后的膜分析工具的表征技术。强调了锂硫电池的发展道路以及渗透选择性膜对改善电化学性能的重要性。
更新日期：2020-09-28
中文翻译：
锂-硫电池中的层间/渗透选择性隔离膜减轻多硫化物的穿梭
锂硫电池系统因其极具吸引力的特性（例如极高的理论比容量，能量密度，低成本和环境友好性）而被认为是锂离子电池的潜在继任者。尽管具有这些独特的优点，但是由于电极之间不可避免地发生多硫化物的穿梭，该系统的商业化仍然受到阻碍，这会导致自放电和较差的循环寿命。这种不希望的多硫化物穿梭可以通过在两个电极之间引入渗透选择性/层间隔离物来减轻。考虑到它们在锂硫电池中的潜在应用，该论文回顾了最新的中间层/选择性渗透隔膜。这篇综述主要包括对通过涂覆在多孔聚烯烃膜上的不同类型的中间层/渗透选择材料抑制多硫化物穿梭的机理的简要描述。描述了锂硫电池的结构和工作原理。还讨论了用作循环之前和之后的膜分析工具的表征技术。强调了锂硫电池的发展道路以及渗透选择性膜对改善电化学性能的重要性。
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