工业规模离子电池水力金属回收的现实世界生命周期评估
Min Liu1, Xin Sun2, Ruixi Shen1,3
1School of Environment, Tsinghua University, Beijing 100084, P. R. China.
Environmental science & technology
|February 10, 2026
概括
工业电池回收会大大减少碳排放,尤其是电动汽车. 与原始生产相比,回收阴极材料的新方法可以将碳足迹减少高达24%.
科学领域:
- 环境科学 环境科学
- 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.
背景情况:
- 电动汽车 (EV) 产业的增长需要可持续的电池生命周期管理.
- 有限的工业规模数据阻碍了对电池回收利用对环境影响的准确评估.
- 中国在电池回收方面的全球显著能力是一个重要的案例研究.
研究的目的:
- 对中国的工业规模电池回收进行全面的生命周期评估.
- 评估各种回收输出和技术的碳足迹减少潜力.
- 预测到2050年,通过电池回收利用的累积二氧化碳排放避免.
主要方法:
- 使用46个中国回收设施的运营数据进行生命周期评估 (LCA).
- 评估多种回收输出:黑质量,金属盐,前体和阴极.
- 对直接前体和阴极回收的水电金技术的分析.
- 与原材料生产和动态车队建模的比较.
主要成果:
- 与采矿相比,新的水电金技术可以减少61%的碳排放.
- 完全回收的正极材料可显著减少碳足迹:LFP的11%,NCM811电池的24%.
- 将再生材料与原始投入混合起来,往往是满足市场规定的比例所必需的.
结论:
- 工业电池回收可以大幅减少碳排放,特别是NCM811电池.
- 先进的回收技术和循环经济实践对于减轻电动汽车行业影响至关重要.
- 调查结果为全球碳足迹法规和可持续电池管理提供了关键数据.
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