美国聚合物电池的研究与开发

Polymer battery R&D in the US

阐述了聚合物电解质中离子迁移的基本概念、固体电解质膜 (SEI)层以及纯聚合物电解质的组成 ;新型的正极和负极材料 ,如低成本的磷酸铁和锂锡合金体系在显著提高电池性能方面很有潜力。聚合物体系新的封装概念和内部粘结可有效地减小电池的质量和体积 ,同时一些新型高能电池体系 ,如锂硫聚合物电池的研究正在进行中 ,这些高能电池的体积比能量和质量比能量在以后的几年中分别有望达到 5 0 0Wh/L和 40 0Wh/kg。

This discussion reports activities relating to the fundamental understanding of the ionic transference in polymer electrolytes, the composition of the SEI layer as well as new pure polymer electrolytes. New cathode and anode materials, such as low cost iron phosphate and lithium tin alloy systems, offer potential for significantly improved performance. The polymer systems take advantage of new packaging concepts and internal bonding to give them superior weight and footprint. Several new approaches to develop new high energy systems, such as the lithium sulfur polymer cells, are underway. These offer the promise of reaching 500 Wh/L and 400 Wh/kg in the next several years.