基于的双离子电池在-60°C下运行,可通过协同插曲的阳极化学实现
Lanfang Que1, Jihuai Wu1, Zhang Lan1
1Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Institute of Materials Physical Chemistry, Huaqiao University, Xiamen, 361021, China.
Advanced materials (Deerfield Beach, Fla.)
|November 10, 2023
概括
本研究介绍了高性能基于的双离子电池 (K-DIBs) 用于零度以下的温度. 这种新的设计克服了缓慢的动力学,使得在-60°C下稳定运行.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 在零度以下的温度下,由于界面动力学缓慢,电池性能显著降低.
- 开发低温储能解决方案对于各种应用至关重要.
研究的目的:
- 构建高性能基于的双离子电池 (K-DIBs),能够在零度以下的温度下高效运行.
- 为了应对低温电池操作中缓慢的界面动力学的挑战.
主要方法:
- 使用聚三烯胺 (PTPAn) 阴极和酸 (HTO) 阳极制造K-DIB系统.
- 在HTO阳极和PTPAn阴极中的离子储存中K+/溶剂共插间机制的研究.
- 使用理论计算和实验分析来理解界面动力学.
主要成果:
- 构建的K-DIBs避免了溶解过程,在零下条件下加快了界面动力学.
- HTO表现出K+/溶剂协同插曲行为,由电解质特性,晶水和均的SEI层促进.
- 实现了卓越的速率性能和循环耐用性,在 -40 °C 6000 个循环后保持了 94.1% 的容量,在 -60 °C 1000 个循环后保持了 91%.
结论:
- 开发的HTO Paddy Power PPAn K-DIB在低温下表现出卓越的性能.
- 这些发现为在零度以下环境中实现高性能储能器件提供了重大进展.
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