摘要
随着新能源汽车产业的快速发展,动力电池进入大规模退役期,退役动力电池循环利用及其节能减排效应成为重要研究课题。采用生命周期评价方法分析了当前我国退役动力电池循环利用系统的能耗和碳足迹。研究结果表明,1kWh容量的退役三元锂电池循环利用全生命周期能耗与碳足迹分别为160:19 MJ和12:11 kg CO_(2)eq。再生材料产出对能耗和碳足迹贡献最大,其对生命周期能耗和碳足迹的贡献分别为126.58%和135.20%;其次为电池梯次利用,其对生命周期能耗和碳足迹的贡献为26.59%和28.16%。通过开展情景分析发现,构建多方参与的联合回收模式、提高梯次利用比例和采用先进资源化技术可显著降低退役三元锂电池循环利用系统的生命周期能耗和碳足迹。
With the rapid development of new energy vehicle industry, power battery has entered the retirement period on a large scale.The recycling of retired power battery and its energy-saving and emission reduction effect have become an important research topic.The life cycle assessment method was used to analyze the energy consumption and carbon footprint of the retired power battery recycling system in China. The results show that the life cycle energy consumption and carbon footprint of retired nickel-cobalt mangante lithium battery with capacity of 1 kWh are-160.19 MJ and-12.11 kg CO_(2)eq, respectively. The output of recycled materials contributed the most to energy consumption and carbon footprint, followed by battery cascade utilization. The contribution of recycled materials output to life cycle energy consumption and carbon footprint are 126.58% and 135.20%, respectively. The second is battery cascade utilization, which contributes 24.10% and 28.16% to life cycle energy consumption and carbon footprint. Scenario analysis shows that the life cycle energy consumption and carbon footprint of the retired NCM lithium battery recycling system can be significantly reduced by constructing the improved collection mode, increasing the proportion of cascade utilization and adopting advanced resource recovery technology.
作者
李建西
李英顺
庄绪宁
吴雯杰
黄庆
宋小龙
LI Jianxi;LI Yingshun;ZHUANG Xuning;WU Wenjie;HUANG Qing;SONG Xiaolong(School of Resources and Environmental Engineering,Shanghai Polytechnic University,Shanghai 201209,China;Shanghai Collaborative Innovation Center of E-Waste Recycling,Shanghai Polytechnic University,Shanghai 201209,China;Shanghai Xinjinqiao Environmental Protection Co.,Ltd.,Shanghai 201201,China)
出处
《上海第二工业大学学报》
2022年第1期1-9,共9页
Journal of Shanghai Polytechnic University
基金
国家重点研发计划“固废资源化”重点专项课题(2019YFC1906101)资助。
关键词
退役三元锂电池
生命周期评价
能耗
碳足迹
retired nickel-cobalt mangante lithium battery
life cycle assessment
energy consumption
carbon footprint
