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原子捕获对长周期水性离子电池的密集固体电解质接口
Yuxin Yuan1, Jianping Chen2, Tianyue Qian1
1School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China.
Angewandte Chemie (International ed. in English)
|September 27, 2025
概括
使用硫酸盐 (PSS) 的新策略有效地抑制水素演化和水性离子电池 (AZIB) 中的树生长. 这种现场方法形成了密集的无机固体电解质接口 (SEI),提高了电池的安全性和寿命.
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:
- 水性离子电池 (AZIB) 提供高安全性,但面临着树生长和演化反应 (HER) 的挑战.
- 固体电解质接口 (SEI) 对于AZIB的性能至关重要,但由于HER造成的松散结构,其现场建造受到阻碍.
研究的目的:
- 制定一个通用的战略,在现场建立一个密集和统一的无机SEI在AZIBs.
- 为改善AZIB稳定性,解决HER和树生长的局限性.
主要方法:
- 引入硫酸盐 (PSS) 作为一个原子清理器.
- 在现场形成氧化硫酸盐 (ZHS) SEI层.
- 电化学测试Zn//Zn对称电池和Zn光束NVO全电池.
主要成果:
- PSS有效地清除原子,抑制HER,并防止松散的SEI形成.
- PSS参与形成一个密集的,均的ZHS-SEI,它是电子绝缘和抑制树的生长.
- Zn//Zn对称细胞表现出长时间的稳定性 (1882小时在5mA cm-2),而Zn红黑NVO全细胞表现出更好的循环性能.
结论:
- 使用PSS提出的原子清理策略使得能够在现场建造一个强大的ZHS-SEI.
- 这种方法显著提高了AZIB的自行车稳定性和安全性,通过减轻HER和树问题.
- 这项研究为稳定水态能量储存系统中的阳极提供了新的视角.
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