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Updated: Jun 5, 2025

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用过的离子电池"阴极的单步绿色水力金回收

Huifan Li¹, Yongfang Chen², Zhaowei Cui¹

¹Center for High-Entropy Energy and Systems, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China; School of Physical Science & Technology, Guangxi University, Nanning 530004, China; Key Laboratory of Blue Energy and Systems Integration (Guangxi University), Education Department of Guangxi Zhuang Autonomous Region, Nanning 530004, China; Center on Nanoenergy Research, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Nanning 530004, China.

Journal of hazardous materials

|December 6, 2024

概括

本研究介绍了一种绿色的,单阶段的离子电池 (LIB) 水力金回收工艺,使用接触电催化 (CEC) 方法. 高效的 CEC 工艺从已耗尽的 LIB 阴极中回收,,和等贵金属.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
化学工程是化学工程的重要组成部分.

背景情况:

对离子电池 (LIB) 的需求日益增长,需要可持续的原材料采购和有效的废物管理.
消耗的LIB含有危险物质和贵金属,给环境和经济带来挑战.
目前的回收方法通常涉及多个步骤和强化学品,影响效率和环境足迹.

研究的目的:

开发一种新的,单步的绿色水力金回收工艺,用于废弃的LIB阴极.
评估接触电催化 (CEC) 回收方法的效率和环境效益.
为了证明在LIB回收中使用SiO2等具有成本效益的催化剂的可行性.

主要方法:

一个单阶段的水电金工艺,使用接触电催化 (CEC) 方法结合预处理和浸出.
直接处理电极片段以去除有机结合物和减少高价值金属离子.
使用未经修改的SiO2作为具有成本效益的催化剂.

主要成果:

在关键金属中实现了高漏效率:99.6%,98.3%,99.4%,97.4%.
有效地去除有机结合物 (例如,聚乙烯化物) 和减少高价值金属离子.
证明SiO2在提高回收过程中的催化作用.

结论:

由 CEC 协助的一步液体金回收是一种可持续的,快速和高效的LIB回收方法.
这种绿色方法为管理危险的LIB废物和回收有价值的资源提供了有希望的解决方案.
随时可用的SiO2作为催化剂的使用提高了该过程的经济可行性和环保性.

关键词:

接触式电催化剂-电催化剂泄漏泄漏是一种泄漏.离子电池是一种离子电池.预处理预处理回收回收是回收的过程.超声波是一种超声波.

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