在路上美国道路的影响. 汽车电气化和轻量化对关键材料的需求
Thomas Maani1,2, Christopher P Kolodziej1, Jarod C Kelly1
1Argonne National Laboratory, Lemont, Illinois 60439, United States.
Environmental science & technology
|January 10, 2025
概括
汽车电气化和轻量化对美国的关键材料需求产生了重大影响. 轻型汽车推动了需求,电池电动汽车需要,石墨,,和.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 汽车工程 汽车工程
背景情况:
- 交通运输的电气化对于减少温室气体排放和化石燃料依赖至关重要.
- 电池电动汽车 (BEV) 依赖于关键材料 (CM),这给广泛采用带来了潜在的供应限制.
- 了解CM需求对于可持续的汽车电气化战略至关重要.
研究的目的:
- 评估汽车电气化和轻量化对美国轻型车辆 (LDV) 和中型和重型车辆 (MHDV) 的关键材料需求影响.
- 为了在不同的市场销售场景中比较CM需求:100%的内燃机车辆 (ICEV),100%的BEV,以及50%/50%的混合.
- 调查轻量化和电池化学对CM要求的影响.
主要方法:
- 对汽车销售情况的情景分析 (100% ICEV,100% BEV,50%/50%混合).
- 在轻量化中对材料替代的评估 (例如,从钢材到).
- 对不同电池化学品的CM需求进行比较分析 (NMC622与LFP).
主要成果:
- 轻型客车 (LDV) 占总CM需求的大部分,尽管中型和重型客车 (MHDV) 的每辆CM要求更高.
- 一个100%的BEV场景需要对,石墨,,和的大量需求.
- 轻量化LDV增加了的需求,但减少了总体质量,能源消耗和对某些高度关注的电池CM的依赖.
- 过渡到铁酸盐 (LFP) 电池减少了CM的使用,但增加了对铜和的需求.
结论:
- 在美国汽车行业向电气化的过渡中,轻型车辆是关键材料需求的主要驱动力.
- 在轻量化和电池化学方面的材料选择显著影响所需关键材料的类型和数量.
- 战略规划对于管理关键材料供应链至关重要,因为越来越多的汽车电气化和不断发展的汽车技术.
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