通过水性再化利用的富NMC的低温直接再生
Nguk Neng Tham1, Jintao Zhang1, Hui Ru Tan1
1Institute of Materials Research and Engineering (IMRE) Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way Innovis #08-03, Singapore 138634, Republic of Singapore.
ACS applied materials & interfaces
|January 7, 2026
概括
由于资源稀缺,使用过的离子电池 (LIB) 的直接回收至关重要. 低温水性再化工艺有效地再生富含的正极材料,提高其性能并实现循环经济.
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:
- 离子电池 (LIB) 的需求不断增长和资源稀缺,需要有效的回收方法.
- 阴极材料的直接回收提供了环境和能源优势,相比传统的金和水力金工艺.
研究的目的:
- 开发一种可持续和有效的方法,直接回收使用的富含的LiNi0.83Mn0.05Co0.12O2 (S-NMC) 阴极材料.
- 使用低温水性再化工艺再生S-NMC.
主要方法:
- 使用的富含的NMC被使用低温 (90°C) 水性再化工艺处理.
- 氧化被用作的来源,而硫酸作为减少剂,以促进的重新插入和结构恢复.
主要成果:
- 再生后的NMC在C/20时显示出显著增强的180mAhg-1的特定容量.
- 回收的阴极材料表现出与原始NMC相比的循环稳定性.
- 低温水性过程成功地恢复了阴极材料的分层结构.
结论:
- 低温水性再化是一种有希望的,可持续的,可扩展的途径,用于直接回收使用的LIB阴极.
- 该方法解决了传统回收技术的关键局限性,支持LIBs的循环经济.
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