Towards consistent life cycle assessment modelling of circular economy strategies for electric vehicle batteries

IF 10.9 1区 环境科学与生态学 Q1 ENVIRONMENTAL STUDIES Sustainable Production and Consumption Pub Date : 2024-09-04 DOI:10.1016/j.spc.2024.09.001
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Abstract

Circular economy strategies for electric vehicle (EV) batteries are gaining importance to reduce dependence on primary raw materials for the energy and mobility transition. Modelling circular economy strategies in the Life Cycle Assessment (LCA) of EV batteries comes with a number of key challenges to ensure sound support to decision-making, including i) solving multifunctionality, whether regarding End-of-Life, processes of secondary raw materials production or product level, ii) capturing material quality aspects and iii) using adequate resource indicators. This study provides a review of LCA guidelines and scientific literature relative to EV batteries. The objective is two-fold: i) identifying key gaps in the guidelines regarding these modelling challenges, and ii) discussing how to fill them based on the state-of-the-art research. The analysis shows that the handling of multifunctionality is addressed in all analysed guidelines but is treated very differently. Major efforts are expected in terms of standardisation and harmonisation, building on the existing state-of-the-art research. A guiding question for standardisation is whether multifunctionality shall be always treated in the same way or whether special rules are appropriate. Instead, material quality and indicators of mineral resource losses are not at all, or to a very limited extent, addressed by existing guidelines. For material quality and mineral resource dissipation and accessibility-based indicators, research developments shall be pursued. Associated research outcomes are ultimately expected to be fed back into the guideline development in a more mid to long-term. The approach for handling these modelling challenges could and should be consistent between different products and sectors of the energy and mobility transition, to avoid double counting and burden shifting.

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为电动汽车电池的循环经济战略建立一致的生命周期评估模型
电动汽车(EV)电池的循环经济战略对于减少能源和交通转型对初级原材料的依赖越来越重要。在电动汽车电池的生命周期评估(LCA)中建立循环经济战略模型面临着一系列关键挑战,以确保为决策提供可靠支持,包括 i) 解决多功能性问题,无论是生命末期、二次原材料生产过程还是产品层面;ii) 捕获材料质量方面的问题;iii) 使用适当的资源指标。本研究综述了与电动汽车电池相关的生命周期评估指南和科学文献。目的有两个:i) 找出指南中与这些建模挑战有关的主要差距;ii) 讨论如何根据最新研究填补这些差距。分析表明,所有分析过的指南都涉及了多功能性的处理,但处理方式却大相径庭。在现有最新研究的基础上,预计将在标准化和协调方面做出重大努力。标准化的一个指导性问题是,是否应始终以同样的方式处理多功能性,还是应适当制定特殊规则。在现有的准则中,材料质量和矿产资源损耗指标根本没有涉及,或者涉及的程度非常有限。对于材料质量和矿产资源损耗以及以可获取性为基础的指标,应继续开展研究。相关研究成果最终有望在中长期内反馈到准则制定工作中。处理这些建模挑战的方法可以而且应该在能源和流动性转型的不同产品和部门之间保持一致,以避免重复计算和负担转移。
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来源期刊
Sustainable Production and Consumption
Sustainable Production and Consumption Environmental Science-Environmental Engineering
CiteScore
17.40
自引率
7.40%
发文量
389
审稿时长
13 days
期刊介绍: Sustainable production and consumption refers to the production and utilization of goods and services in a way that benefits society, is economically viable, and has minimal environmental impact throughout its entire lifespan. Our journal is dedicated to publishing top-notch interdisciplinary research and practical studies in this emerging field. We take a distinctive approach by examining the interplay between technology, consumption patterns, and policy to identify sustainable solutions for both production and consumption systems.
期刊最新文献
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