Polymer electrolytes for sodium-ion batteries
Polymer electrolytes for sodium-ion batteries
复制标题
钠离子电池用聚合物电解质
DOI：
10.1016/j.ensm.2020.11.030
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发表时间：
2021-04-01
影响因子：
20.4
通讯作者：
Dou, Shi-Xue
中科院分区：
文献类型：
--
作者：
Gebert, Florian;Knott, Jonathan;Dou, Shi-Xue
随着锂离子电池需求的飙升，人们对钠离子电池作为一种潜在的互补储能技术的兴趣激增。提高钠离子电池竞争力的前沿之一是用不含自由流动溶剂的聚合物电解液取代液体电解液，以提高安全性和降低成本。它们的开发有朝一日可能会制造出可行的钠金属电池，这将在能量密度方面具有相当大的优势。本文综述了目前钠离子电池用固体聚合物电解质和凝胶聚合物电解质的研究现状，重点介绍了用于评价固体聚合物和凝胶聚合物电解质的关键性能参数。特别讨论了它们的针对性操作和实际应用的意义。一个主要的主题也是许多电化学和机械性能的相互依赖。此外，还首次对迄今为止报道的不同聚合物类别的这些参数的值进行了定量比较。
Sodium-ion batteries are seeing a surge in interest as a potential complementary energy storage technology in light of skyrocketing demand for lithium-ion batteries. One of the frontiers of improving sodium-ion battery competitiveness is replacing liquid electrolytes with polymer electrolytes, which contain no free-flowing solvent, to increase safety and reduce cost. Their development may one day make viable sodium-metal batteries, which would have considerable advantages in energy density. This review provides an overview of the current field of both solid-polymer and gel-polymer electrolytes for sodium-ion batteries, with a focus in the key performance parameters used to assess them. In particular, their targeted manipulation and significance for practical use are discussed. A major theme is also the interdependence of many electrochemical and mechanical properties. In addition, a quantitative comparison of hitherto reported values for these parameters across various polymer classes is undertaken for the first time.