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为可伸缩金属电池构建层次互穿和反入的微细胞框架

Yoojoo An^1,2, Nayeon Kim^2,3, Soo Yeong Hong²

¹KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea.

Small (Weinheim an der Bergstrasse, Germany)

|December 3, 2023

概括

研究人员开发了一种用于金属电极的新型可拉伸框架,采用了回流式微细胞结构. 这一创新使可穿戴设备在机械应力下保持稳定的电化学性能.

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
纳米技术纳米技术

背景情况:

可穿戴设备需要灵活和可拉伸的储能元件.
金属电极提供高能量密度,但缺乏灵活应用的机械稳定性.

研究的目的:

创建一个可伸缩的框架,用于金属电极使用一个层次交互穿透的微细胞结构.
为了提高金属电极的电化学性能和机械稳定性,用于可穿戴式能量存储.

主要方法:

复合结构的制造,将2D石墨烯/MXene/碳纳米管 (CNT) 与3D胺泡结合在一起.
通过辐射压缩创建一个重新进入的微细胞结构,以增强伸展性.
在机械应变下对沉积复合电极进行电化学测试.

主要成果:

复合电极表现出稳定的结构变形性和高电导率.
沉积在框架上显示出更好的性和机械稳定性.
在剥离/板过程中,电极表现出较低的超电位,在30%的应变下表现稳定.

结论:

开发出来的回归微细胞结构为可伸缩金属电极提供了一个有前途的框架.
这种方法推进了用于灵活和可穿戴电子产品的高能量密度电池的设计.

关键词:

石墨烯/CNT/MXene复合物的复合物层次上相互透的微细胞框架.重新进入的框架.可伸缩电池是可以伸缩的电池.可伸缩的金属电池电池是可以伸缩的.

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