首页|退役磷酸铁锂电池梯次利用生命周期评价与碳减排情景分析

退役磷酸铁锂电池梯次利用生命周期评价与碳减排情景分析

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以磷酸铁锂电池为研究对象,综合考虑梯次利用比例、使用周期及电池容量等因素,设定不同梯次利用场景,采用生命周期评价方法量化退役动力电池在梯次利用及后续报废处置阶段的环境影响,并对不同梯次利用率情景下的碳减排量进行分析.结果表明,与直接再生利用相比,储能、通信基站、低速电源三种梯次利用场景均表现为环境效益.其中,储能场景环境效益最大,其在气候变化、化石能源消耗、人体毒性-非致癌、陆地生态毒性指标等环境影响指标上均表现出相对优势.基于电池退役量和梯次利用去向,进一步计算出 2023 年全年磷酸铁锂电池梯次利用的碳减排量为 1.05×108kg CO2eq.当梯次利用率保持当前水平或以10%增长时,至2030年其全年碳减排量可达1.55×109kg CO2eq.和5.98 109kg×CO2eq.,梯次利用具有良好的减污降碳环境表现.
Life cycle assessment and carbon reduction scenario analysis of retired lithium iron phosphate batteries for cascade utilization
The paper takes lithium iron phosphate batteries as research object,by considering the proportion of cascade utilization,life cycle and battery capacity,different cascade utilization scenarios are set,then the environmental impact of retired power batteries in the cascade utilization and subsequent disposal is quantified by using life cycle assessment method,and the carbon emission reduction under different cascade utilization rate scenarios is analyzed.The results indicate that compared to direct recycling,the three cascade utilization scenarios of energy storage,communication base stations and low-speed power supply all show environmental benefits.Among them,the energy storage scenario has the greatest environmental benefits,showing relative advantages in environmental impact indicators such as climate change,fossil energy consumption,human toxicity-non carcinogenic and terrestrial ecotoxicity.Based on the retirement amount of battery retirement and the direction of cascade utilization,the paper further calculates the carbon reduction for the cascade utilization of lithium iron phosphate batteries in 2023 is 1.05×108kg CO2eq.When the cascade utilization rate remains at the current level or increases by 10%,the annual carbon reduction in 2023 can reach 1.55×109kg CO2eq.and 5.98×109kg CO2eq.The cascade utilization has good performance in reducing pollution and carbon emissions.

retired lithium iron phosphate batterycascade utilizationlife cycle assessmentenvironmental impactcarbon emission reduction

豆咏琪、宋小龙、庄绪宁、吴雯杰、范帅康

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上海第二工业大学资源与环境工程学院,上海 201209

上海电子废弃物资源化协同创新中心,上海 201209

退役磷酸铁锂电池 梯次利用 生命周期评价 环境影响 碳减排

上海市浦东新区科技发展基金民生科研专项上海市浦东新区科技发展基金民生科研专项国家重点研发计划"固废资源化"重点专项课题

PKJ2022-C09PKJ2023-C032019YFC1906101

2024

中国环境科学
中国环境科学学会

中国环境科学

CSTPCDCHSSCD北大核心
影响因子：2.174
ISSN：1000-6923
年,卷(期)：2024.44(7)
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