可回收的有机根电极用于无金属电池
Ratul Mitra Thakur1, Ting Ma1, Grant Shamblin1
1Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
ChemSusChem
|May 10, 2024
概括
直接回收的有机电池电极由聚2,2,6,6-四甲基烯烯-4- (PTMA) 和聚2,2,6,6-四甲基烯-4-烯胺 (PTAm) 制成. 添加剂通过解决可再生能源储存的阴极电解质相间挑战来提高回收电极性能.
科学领域:
- 可持续的储能解决方案 可持续的储能解决方案
- 用于电化学设备的材料科学.
- 绿色化学和回收过程中的绿色化学.
背景情况:
- 有机电池为储能提供了一个可持续的替代方案.
- 有机电池组件的有效回收对于实现循环经济原则至关重要.
- 目前有机电池的回收方法面临着挑战,阻碍了广泛采用.
研究的目的:
- 展示一个直接回收方法,用于聚二二六四甲基烯酸-4-) (PTMA) 和聚二二六四甲基四烯酸) (PTAm) 复合电极.
- 调查与回收有机电池电极相关的挑战,特别是阴极电解质介相 (CEI) 的形成.
- 提出解决方案,以提高回收有机电池电极的电化学性能.
主要方法:
- 使用溶解剂进行电极解构,然后使用造溶剂进行重建.
- 使用循环电量计 (CV) 和静电电荷-放电 (GCD) 循环的电化学表征.
- 使用飞行时间二次离子质谱法 (ToF-SIMS) 分析阴极电解质间相 (CEI).
主要成果:
- 成功地实现了PTMA和PTAm复合电极的直接回收.
- 在回收过程中,形成有害的阴极电解质介相 (CEI) 层被确定为一个关键的挑战.
- 一种添加剂成功地用于修改CEI层,增强回收电极的电化学特性.
- 使用回收的PTAm电极为阳极和阴极构建了一个功能性的阳离子摇椅电池.
结论:
- 本研究提出了有机电池复合电极的可行直接回收策略.
- 了解和减轻CEI的形成对于有效的有机电池回收至关重要.
- 开发的回收过程和拟议的添加剂为更可持续的下一代储能设备提供了一条道路.
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