闭环阴极化学使自再生的水性Zn-Te电池能够通过非平衡的氧回氧通路而受到影响.
Rui Pan1, Yucheng Xie2, Bowen Jiang1
1SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, China.
Advanced materials (Deerfield Beach, Fla.)
|November 17, 2025
概括
在这项研究中,使用闭环化学与三硫酸的方法,使死电池复苏. 这种方法可再生阴极并稳定阳极,延长电池寿命并使材料重复使用.
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:
- (Te) 为水性离子电池提供了高容量,但由于氧化物水解和穿效应,其性能受损.
- 质子合电子转移 (PCET) 驱动非平衡水解,导致Zn-Te电池的循环稳定性较差.
研究的目的:
- 为了展示一种复原退化的- (Zn-Te) 电池的方法.
- 引入闭环化学,以解决水性Zn离子电池中穿效应和阳极被动化的问题.
主要方法:
- 采用有机二 (TESI) 来促进电池内部的闭环化学反应.
- 使用三化离子 (I3-) 来减少溶解的物种并再生阴极.
- 研究TES+在形成保护性阳极固体电解质介相 (SEI) 中的作用.
主要成果:
- 一个完全降解的Zn-Te细胞在休息12小时后恢复了94.3%的初始容量.
- 三化/化氧化还原对有效地通过减少溶解的TeOx·H2O (aq) 来振兴阴极.
- TES+促进了稳定的阳极SEI,防止了被动化,并使得无树的涂.
结论:
- 开发的闭环化学成功地使已死Zn-Te电池复原,显著改善容量保留和循环寿命.
- 该战略提高了电池的寿命和材料的可重复使用性,为成本有效的电池生产提供了可持续的方法.
- 这项工作提出了一种新策略,用于稳定水性离子电池中的基于的阴极和阳极.
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