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热辅助干涂层电极解锁可持续和高性能电池

Zongtao Qu¹, Yan Wang¹, Chengxiao Zhang¹

¹Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, China.

Advanced materials (Deerfield Beach, Fla.)

|November 24, 2024

概括

干电池电极的生产是通过使用二酸 (LiDFOB) 和酸 (SN) 介质的热辅助方法来改进的. 这种方法提高了可持续电池制造的能量密度和性能.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
可持续制造可持续制造可持续制造

背景情况:

目前的电池生产使用N-甲基-2-pyrrolidnone (NMP) 溶剂,提高成本,能源和毒性问题.
干电极技术是为了可持续性而寻求的,但通常具有较低的能量密度.
现有的干电极在高面积容量和快速充/放电要求方面扎.

研究的目的:

为和丰富 (LMR) 阴极开发高能量密度干电极.
为了克服当前干电极技术的性能限制.
建立一个更绿色,更可持续的电池生产方法.

主要方法:

在干燥生产LMR阴极时采用了热助理方法.
二酸 (LiDFOB) 和酸 (SN) 被用作电极介质.
一个温和的加热过程促进了SN-LiDFOB的化,以改善组件的分布.

主要成果:

实现了4C (12mA cm-2) 的最大速率能力的干燥LMR阴极.
实现了11.0 mAh cm-2的容量,显著提高了能量密度.
展示了一种金属/LMR全电池,最大能量密度为609Wh kg-1和功率密度为2,183W kg-1.

结论:

使用SN-LiDFOB介质的热助理方法成功地产生了高能量密度的干燥LMR阴极.
这一突破解决了干电极能量密度的关键瓶.
这些发现为可持续和环保的电池生产开辟了新的途径.

关键词:

金属电池电池的使用情况富含和的正极是富含和的.干涂层电极是干涂层的电极.电子运输是一种电子运输.没有足够的Li++热助手配送系统的使用.

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