从离子电池中分离关键金属的顺序分离,这种分离方法是基于深度环氧溶剂和电解沉积
Jianming Cheng1, Chao Zheng2, Kun Xu1
1Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
Journal of hazardous materials
|December 8, 2023
概括
这项研究引入了一种新型的深溶解溶剂 (DES),用于简化从电动汽车离子电池 (LIB) 中回收关键金属. 该方法有效地分离,和,为可持续的电池材料回收提供了一个有希望的方法.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 电动汽车 (EV) 推动了对离子电池 (LIB) 的需求.
- 从NCM阴极回收像和这样的关键金属,由于相似的化学性质,提出了重大挑战.
- 有效的回收方法对于可持续的电动汽车电池生命周期至关重要.
研究的目的:
- 开发一种简化的一步过程,用于从NCM LIB中回收关键金属.
- 调查使用一种新型三元深溶剂 (DES) 进行综合合成,分离和/浸出.
- 为了使贵金属的顺序分离和回收.
主要方法:
- 使用胆化物,乙烯糖醇和葡萄糖酸合成了一种新型三元深溶解剂 (DES).
- 集成的DES合成,分离和/浸出在一个单一的步骤.
- 连续分离,和通过酸浸出和电沉积.
- 在DES漏过程中研究结晶现象.
主要成果:
- 综合的DES过程大大简化了从NCM LIB中回收关键金属的过程.
- ,和被顺序分离成Li2CO3,NiO和Co (OH) 2.
- 这种深度欧性溶剂在电沉积阶段后证明了可重复使用性.
- 浸出过程中的结晶被详细研究.
结论:
- 提出的基于DES的方法为NCM电池的连续金属分离提供了一种新且高效的方法.
- 这种综合过程简化了回收,并显示出在LIB回收中工业应用的巨大潜力.
- DES的可重复使用性有助于该过程的经济和环境可行性.
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