用于离子电池的低扭曲性的基于织物制成的分离器
Tianyun Zhang1,2, Lirong Zhang1, Fujuan Wang2
1School of Mechanical and Electronical Engineering, Department of Textile Engineering, Lanzhou University of Technology, Lanzhou 730050, China. zhangtianyun@lut.edu.cn.
Nanoscale
|February 19, 2024
概括
使用TEMPO氧化细菌纤维素的新型织物分离器提高了离子电池的性能. 与传统分离器相比,这种低曲率的设计可以提高离子传输,稳定性和导电性.
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
- 织工程 织工程 织工程
背景情况:
- 高性能离子电池需要连续的离子运输路径.
- 分离器是影响电池性能和稳定性的关键组件.
- 现有的分离器在优化离子运输和结构完整性方面经常面临局限性.
研究的目的:
- 为离子电池制造一种新型的低曲性织物分离器.
- 通过合理的结构设计,增强离子运输动力学和电池整体性能.
- 探索将编织技术与基于纤维素的材料相结合的潜力.
主要方法:
- 使用编织技术和纤维素溶液方法制造织物分离器.
- 将TEMPO氧化细菌纤维素泥注入织物基板中.
- 分离器的孔结构,扭曲性,抗拉强度,离子导电性和电化学稳定性的表征.
主要成果:
- 新型分离器具有独特的编织结构,扭曲度显著降低 (0.77).
- 与商用聚烯分离器相比,证明具有更高的抗拉强度 (3.07 MPa),离子导电性 (1.15 mS cm-1),离子转移数 (0.75).
- 结合的宏孔和微孔创建连续的离子运输通道,增强运输动态.
结论:
- 泰普氧化细菌纤维素织布分离器为高性能离子电池提供了一个有前途的途径.
- 开发的制备方法结合了织技术和材料科学,为分离器设计提供了简单有效的方法.
- 这种结构设计策略提高了电化学性能,热稳定性和机械性能.
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