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甲基硫inylmethane-regulated混合电解质用于稳定的 Zn 阳极和抑制的 Mn 溶解
Hongjin Wang1, Junming Kang2, Ganxiong Liu1
1School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China.
Small (Weinheim an der Bergstrasse, Germany)
|May 16, 2025
概括
甲基硫甲 (MSM) 添加剂通过防止树脂和阴极降解来稳定水性二氧化电池. 这提高了电网应用的储能性能和电池寿命.
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Zn-LiMn2O4混合离子电池为大规模储能提供高能量密度和环保特性.
- 挑战包括阳极的副作用反应和来自LiMn2O4阴极的溶解,限制电池性能和寿命.
研究的目的:
- 开发一种使用甲基硫甲 (MSM) 的新型混合电解质,以克服传统水性电解质的局限性.
- 为了提高水性Zn-LiMn2O4混合离子电池的稳定性和性能.
主要方法:
- 一种甲基硫尼甲 (MSM) 添加剂被引入用于水性Zn-LiMn2O4电池的混合电解质中.
- 电化学性能使用Zn下载Zn对称细胞和Zn-LiMn2O4全细胞进行评估.
- 研究了MSM对沉积,离子溶解,电解质粘度和阴极稳定性的影响.
主要成果:
- MSM抑制了树突的生长,使得在对称细胞中能够稳定地化/脱落超过1600小时.
- 经过修改的Zn2+溶解结构和破坏的键网络减少了界面腐蚀,改善了离子流动性.
- 混合电解质通过抑制不成比例稳定了LiMn2O4阴极,从而提高了全细胞的循环稳定性.
结论:
- 监管MSM的混合电解质有效地解决了水性Zn-LiMn2O4电池的关键挑战,改善了阳极和阴极的稳定性.
- 这种方法显著提高了这些电池的循环性能和速率能力,使它们更适合大规模储能.
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