数据-知识-双驱电解质设计用于快充离子电池
Yi Yang1,2,3, Nan Yao3, Yu-Chen Gao3
1School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P.R. China.
Angewandte Chemie (International ed. in English)
|April 7, 2025
概括
为电动汽车 (EV) 开发先进的电解质对于快速充电至关重要. 这项研究引入了一种新的数据驱动方法,用于高温快充电解质 (HTFC),提高离子电池 (LIB) 的性能和安全性.
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
- 计算化学计算化学
背景情况:
- 电动汽车 (EV) 需要快速充电,但离子电池 (LIB) 的高速充电会产生热量,降解电解质并危及安全.
- 目前对高温快充电解质 (HTFC) 的研究不足以满足性能需求.
研究的目的:
- 开发一种新的数据-知识-双驱动方法来设计HTFC电解质.
- 在LIBs中识别和验证新的电解质配方,以提高高温快充性能.
主要方法:
- 集成的高通量计算,机器学习和实验验证.
- 使用开发的数据驱动方法选潜在的电解质添加剂.
- 在高温下对囊细胞进行了广泛的循环测试.
主要成果:
- 成功选乙基三甲基酸作为HTFC的有希望的电解质成分.
- 在高温快充条件下显著限制副作用.
- 在45°C下实现稳定安全快速充电 (15分钟到80%容量) 超过4100个循环,在181Wh kg-1袋式电池中没有涂.
结论:
- 数据-知识-双驱动方法对于开发先进的HTFC电解质是有效的.
- 乙烯三甲基酸可实现在高温下快速充电LIBs的最新性能和安全性.
- 这项工作解决了电动汽车电池技术的关键瓶,为更快的充电解决方案铺平了道路.
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