在几分钟内,MXene触发了自由基聚合,并将其转化为全打印的离子混合电容器,甚至更远
Wentao Zhang1, Chuijin Zeng1, Mengtian Zhang2
1College of Materials Science & Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.
Angewandte Chemie (International ed. in English)
|September 14, 2024
概括
一种新的MXene触发方法可以为打印的准固态电化学能量存储设备提供无电极-凝聚合物电解质接口,提高性能和稳定性.
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:
- 准固态电化学储能器件 (EES) 的增材制造需要优化的凝聚合物电解质 (GPE) 设计.
- 实现良好结合的电极-GPE接口对于高性能打印EES至关重要,但仍然具有挑战性.
研究的目的:
- 为工程可控,无电极-GPE接口开发一种可扩展的方法.
- 为了实现定制EES的直接全打印,提高电化学性能和稳定性.
主要方法:
- 使用MXene在室温下触发GPEs的自由基聚合 (FRP).
- 调查MXene在降低启动器解离和加速FRP中的作用.
- 用于所有印刷应用的聚合物电解质的风学切换的特征.
主要成果:
- 通过MXene触发的FRP,在几分钟内形成了一个结合良好的电极-GPE接口.
- 由于同质化的电场和度场,抑制了树石的形成.
- 在离子混合电容器 (ZHC) 中实现了长期循环 (50,000 个循环),高能量密度 (105.5 Wh/kg) 和功率密度 (9231 W/kg).
- 在变形时表现出极好的稳定性.
结论:
- MXene触发的FRP方法为创建无电极-GPE接口提供了一种多功能和可扩展的方法.
- 这种技术有助于直接全打印高性能,稳定的准固态EES.
- 打开了超出 ZHC 的印刷 EES 的可能性.
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