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在高性能固态金属电池的液晶弹性体中空间编排的氧气图案解离子解离/迁移

Zongcheng Miao¹, Rui Yan¹, Xingxing Zhang²

¹School of Artificial Intelligence, Optics and Electronics (iOPEN), Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P.R. China.

Angewandte Chemie (International ed. in English)

|December 11, 2025

概括

研究人员开发了一种用于固态金属电池的新型液晶弹性体 (LCE). 这种材料增强了离子导电性和稳定性,克服了下一代电池技术的关键挑战.

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:

固体聚合物电解质 (SPEs) 对更安全的固态金属电池具有前景.
一个关键的挑战是平衡盐解离与高效的离子迁移.
现有的SPE在这些关键性质之间的权衡方面扎.

研究的目的:

设计一种新的SPE平台,以提高金属电池的性能.
为了解决固体聚合物电解质中的解离迁移权衡问题.
为固态电池开发可编程的液晶弹性体 (LCE).

主要方法:

液晶弹性体 (LCE) 的制造,采用有图案的碳和以太氧图案.
使用碳基作为LiTFSI解离的和以太链作为Li+跳转的继电器.
研究LCE的离子导电性,Li+转移数和电化学稳定性.

主要成果:

在室温下达到高离子导电性 (4.05 × 10−3 S cm−1) 和 Li+ 转移数 (0.78).
由于 LiF 富含 LiF 的协同作用的交相,已证明抑制了树的生长.
在Li//Li对称细胞 (>1000小时) 和全细胞 (LiFePO4//Li和高压NMC//Li) 中表现出极好的循环稳定性.

结论:

拟议的LCE框架有效地通过"中继"机制将离子解离和迁移脱.
这种分子工程方法为先进的固态电池提供了一个变革性的平台.
该LCE展示了实现高性能和安全的下一代金属电池的巨大潜力.

关键词:

碳烯与氧/以太与氧的相互作用.富有生命力的SEI.液晶弹性体电解质电解质的电解质.固态电解质固态电解质

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