从使用过的离子电池中选择性提取,通过聚乙烯基化物热分解的气体固体反应
Biyuan Yang1, Xinyu Lu2, Xiaowei Wang2
1Hunan Prevention and Treatment Institute for Occupational Diseases, Changsha, 410007, PR China.
Heliyon
|February 19, 2024
概括
这项研究将使用过的NCA电池的提取与PVC热解相结合,减少了能源和化学需求. 这种新的方法实现了94.37%的回收,为废物利用提供了可持续的解决方案.
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:
- 废旧电池的回收和PVC的热分解是能源密集的过程.
- 目前从使用过的NCA电池提取和PVC回收利用的方法在效率和可持续性方面面临挑战.
研究的目的:
- 开发一种综合战略,同时从已使用的NCA (LiNi0.85Co0.15Al0.05O2) 和PVC热解中提取.
- 在这两个过程中减少能源消耗和化学添加剂的需求.
主要方法:
- 使用扫描电子显微镜 (SEM),传输电子显微镜 (TEM),X射线衍射 (XRD) 和X射线光电子光谱 (XPS) 进行表征.
- 研究了气体固体提取机制和从S-NCA到可溶性LiCl的迁移途径.
主要成果:
- 在最佳条件下实现了94.37%的提取效率.
- 确定了最佳的工艺参数:温度为600°C,S-NCA/PVC质量比为1:4,时间为2小时.
- 显著减少了能源消耗和化学添加剂的使用.
结论:
- 综合工艺提供了一种新且高效的方法,用于利用PVC热分解产品和从废弃的NCA电池中回收.
- 该战略为资源回收和废物管理提供了一个可持续的途径.
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