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网络驱动的离子运输在稳固的现场聚合电解质集成阴极中,用于智能传感平台中的长寿命结构电池

Yu Fu^1,2, Zehua Wang¹, Yifan Chen¹

¹School of Aerospace Engineering and Applied Mechanics, Tongji University, Zhangwu Road 100, Shanghai, 200092, China.

Advanced materials (Deerfield Beach, Fla.)

|November 3, 2025

概括

一种新的固态电解质通过提高离子导电性和机械强度来提高离子电池循环寿命. 这一突破使得300个周期的稳定性能和电动汽车先进结构电池的开发成为可能.

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
聚合物化学聚合物化学

背景情况:

固态离子电池由于离子导电率低,固体电解质的机械强度差,以及不稳定的接口,面临着周期寿命有限的挑战.
开发强大的固体电解质对于推进电池技术和安全至关重要.

研究的目的:

合成一种具有增强离子导电性和机械性能的新型固态电解质.
研究固态离子电池的底层传输机制和界面稳定性.
为了证明开发的电解质在全电池和结构电池应用中的潜力.

主要方法:

在现场聚合双甲乙氧化二甲酸盐 (E2BADMA) 和聚乙烯氧化物) 二甲酸盐 (PEGDA) 在基于LiTFSI碳酸盐的电解质中.
密度函数理论 (DFT) 模拟与实验验证相结合,以了解Li+运输机制.
整合固体电解质/阴极架构和完整电池的制造和测试.
传统电池和结构电池的循环性能评估和容量保留分析.

主要成果:

合成了一种新的固态电解质,具有高离子导电性和机械强度.
确定了一种网络增强的运输机制,涉及到多 (E2BADMA) 链,改善了Li+运输和机械完整性.
集成的固体电解质/阴极架构显示出出色的电化学性能和界面稳定性.
固态离子电池在300个循环中实现了稳定的循环,容量消失是可以忽略的.
结构电池在120个循环后保留了约100 mAh g-1,显示了多功能应用的潜力.

结论:

开发的固态电解质显著改善了离子电池的循环寿命和稳定性.
确定了网络增强的传输机制,为固体电解质设计提供了新的见解.
电解质的特性使得能够创建高性能结构电池,用于先进的能源存储和电力运输系统.

关键词:

电极 - 电解质接口接口在现场聚合.感应感应感应感应感应感应固体电解质是一种固体电解质.结构电池是结构电池.

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