解锁稳定循环在 Kerf 废物阳极与回收聚烯胺基结合剂的离子电池应用程序的稳定循环
Aaron Hennessy1, Abinaya Sankaran1, Adrian Hannon1
1Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland.
ACS applied materials & interfaces
|December 11, 2025
概括
研究人员利用回收材料开发了一种新型的粘合剂系统,用于离子电池中的阳极. 这项创新通过利用半导体废物来提高电池性能和可持续性.
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
- 可持续能源 可持续能源
背景情况:
- 来自半导体废物的 (Si) 是离子电池的一个有希望的,具有成本效益的阳极材料.
- 回收的Si颗粒具有可变的大小和形态,导致机械应力和电化学性能降低.
- 现有的结合剂,如碳氧甲基纤维素 (CMC),不足以优化Si阳极性能.
研究的目的:
- 开发和评估一种新的粘合剂系统,聚烯酸/聚烯胺 (LiPAA/PAM),适用于回收裂废物.
- 为了对比LiPAA/PAM结合剂的性能,单独使用聚烯胺 (PAM) 和CMC.
- 为了证明回收的Si kerf废物作为可行的阳极材料的潜力.
主要方法:
- 合成和描述LiPAA/PAM绑定系统.
- 使用开发的粘合剂系统制造阳极.
- 电化学测试,包括静电循环,以评估容量保留和性能.
主要成果:
- LiPAA/PAM绑定系统利用共价,,离子和静电相互作用来提高稳定性.
- 再循环的PAM粘合剂单独提高了容量保留,与CMC相比大约是3倍.
- 将LiPAA添加到PAM中进一步增加了容量保留的两倍,在延长循环后达到1528 mAh g-1.
结论:
- 开发的LiPAA/PAM粘合器系统有效地减轻了与回收的Si kerf废物相关的问题.
- 这种粘合剂释放了裂废物的潜力,作为一种高性能,具有成本效益的阳极材料.
- 该研究强调了一种可持续的方法来回收电池材料,减少对环境的影响.
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