用过的离子电池的绿色回收过程具有极低的化学消耗
Weiguang Lv1,2,3, Xiaohong Zheng1,4,3, Hongbin Cao1,2,3
1National Engineering Research Center of green recycling for strategic metal resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
Fundamental research
|December 30, 2025
概括
机械激活增强了使用过的离子电池 (LIB) 中的回收. 这种绿色方法优化了试剂的使用,并通过创建一个新的中间阶段来有效地出Li+来减少污染.
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.
- 可持续化学 可持续化学
背景情况:
- 使用过的离子电池 (LIB) 带来了环境挑战.
- 目前的回收方法是低效和污染的.
- 稳定的中间阶段阻碍了有效的泄漏.
研究的目的:
- 开发一种绿色和高效的方法,用于从消耗的LIB中选择性回收.
- 克服现有的回收技术的局限性.
- 提高+漏效率,减少二次污染.
主要方法:
- 在没有研磨添加剂的情况下机械激活使用过的电池阴极.
- 实验性表征 (例如,XRD,SEM) 和密度函数理论 (DFT) 分析.
- 开发一个闭环回收路径.
主要成果:
- 通过机械激活,形成了一个新的,稳定的中间阶段,具有高表面积和内部应力.
- 这一阶段显著提高了Li+漏效率.
- 实现了高H+利用率 (>97%),降低了试剂和能源消耗.
结论:
- 机械激活是改善LIB回收的可行策略.
- 开发的闭环路线为回收提供了可持续和高效的解决方案.
- 这种方法最大限度地减少了二次污染和辅助试剂需求.
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