退役的离子阳极的高级表征和复原:朝着开发绿色回收路径的方向
Luke Sweeney1,2, Alexander T Sargent1,2, Yuhang Dai3
1School of Chemistry, University of Birmingham, Birmingham, UK.
Small (Weinheim an der Bergstrasse, Germany)
|January 20, 2026
概括
使用脱离离子水和酸回收电动汽车 (EV) 电池阳极,为传统方法提供了一个可持续的替代方案. 这种绿色化学方法有效地使耗尽的阳极复苏,恢复它们的性能以供未来使用.
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
- 可持续化学 可持续化学
背景情况:
- 由于使用周期有限,电动汽车 (EV) 电池寿命末期管理至关重要.
- 目前的水力金回收是能源密集型和漫长的,需要具有成本效益的,更短的循环再生路线.
- 开发回收使用的电动汽车电池电极的可持续方法对于防止垃圾填埋和促进资源管理至关重要.
研究的目的:
- 为了研究脱离离子 (DI) 水和酸 (AA) 在再生耗尽的电动汽车电池阳极系统中的有效性.
- 评估再生阳极的电化学,物理化学和形态特性.
- 为了证明一种可持续的,成本效益高的替代传统电池回收.
主要方法:
- 使用DI水和AA用于回收和重新制造未经分层的耗尽阳极系统的概念验证研究.
- 多模态表征技术,以评估治疗前后的变化.
- 高分辨率的X射线断层扫描和基于图像的模拟以量化微观结构指标并可视化石墨/孔相.
主要成果:
- DI水有效地从石墨阳极中去除了表面杂质,增强了再生.
- 经过再生的阳极在20个周期内表现出~2.65 mAh/cm2的稳定放电容量,超过未使用的和寿命终止的阳极.
- 3D可视化提供了有关回收机制和复苏效果的见解.
结论:
- 绿色化学,特别是DI水和AA,为电动汽车电池阳极回收提供了一个可行的和可持续的替代水合金学.
- 射线成像是理解和推进循环电池技术的关键工具.
- 这种方法可以恢复整个消耗的阳极系统,促进负责任的资源管理.
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