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设计用于无压缩固态电池的高带电解质

Xuewei He¹, Zhiwei Zhu¹, Guojiang Wen¹

¹College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, China.

Advanced materials (Deerfield Beach, Fla.)

|October 5, 2023

概括

一种新型的高带电解质 (HETE) 为固态电池提供了强大的粘附性和类似液体的离子导电. 这一突破使无压缩电池组装成为可能,并提高了机械应力下的稳定性.

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
聚合物科学聚合物科学

背景情况:

固态电池需要先进的固体电解质,具有强大的粘合力,以确保组件接触.
传统的固体电解质由于粘合性差,需要高压缩,使电池的设计和制造复杂化.
接口挑战仍然是固态电池开发和商业化的一个重大障碍.

研究的目的:

为固态电池提出一种新的高带电解质 (HETE) 概念.
为了同时实现带状的粘附性,液体状的离子导电性和分离器状的机械性能.
为了演示使用HETE的无压缩固态电池.

主要方法:

一个HETE的设计,具有粘合性皮肤层和坚固的骨架层.
通过聚合物-离子相互作用设计高的微结构.
离子导电性,机械性质和界面粘附的表征.
一个无压缩固态磁带电池的制造和测试.

主要成果:

在室温下,HETE表现出高离子导电性 (3.50 ± 0.53 × 10-4 S cm-1).
实现了出色的机械性能,包括性 (11.28 ± 1.12 MJ m^-3) 和强度 (8.18 ± 0.28 MPa).
显著的带状粘附被证明 (界面性231.6 ± 9.6 J m-2).

结论:

HETE概念成功地整合了粘附性,离子导电性和机械强度.
一个无压缩的固态磁带电池成功演示,在曲和扭曲下显示稳定性.
HETE为克服固态电池技术和制造中的接口挑战提供了一个有希望的解决方案.

关键词:

没有压缩的固态电池.电解质电极接口的接口弹性带电池弹性带电池高带电解质的高带电解质

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