调整阴极和电解质之间的共价合度,以优化固态电池的界面电阻
Zhuohao Xie1,2, Weicai Zhang1,2, Yansen Zheng1,2
1Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, Guangdong, China.
ACS applied materials & interfaces
|June 12, 2023
概括
研究人员开发了一种新方法,通过使用共价相互作用来加强阴极/固态电解质接口来提高固态电池的性能. 这显著降低了界面阻力,甚至低于液体电解质的阻力.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 固态电池提供了更高的安全性和能量密度,但也面临着挑战.
- 电极/固态电解质 (SSE) 接口的弱接口接触和高阻力阻碍了它们的发展.
研究的目的:
- 在阴极/SSE接口引入共价相互作用,以减少接口阻抗.
- 为了研究不同等级的共价合对接口性质的影响.
主要方法:
- 在阴极/SSE接口上引入可调节合度的共价相互作用.
- 使用电化学技术进行界面阻抗的表征.
主要成果:
- 通过加强阴极/SSE相互作用,实现显著降低界面阻抗.
- 获得了33 Ω cm-2的最佳界面阻抗,超过了液体电解质 (39 Ω cm-2).
结论:
- 共价相互作用有效地减轻了固态电池的接口问题.
- 这一战略提供了一种有前途的方法来提高固态电池的性能.
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