Life Cycle Assessment of a Lithium-Ion Battery Vehicle Pack

被引:450
作者
Ellingsen, Linda Ager-Wick [1 ]
Majeau-Bettez, Guillaume [2 ]
Singh, Bhawna [2 ]
Srivastava, Akhilesh Kumar [3 ]
Valoen, Lars Ole [3 ]
Stromman, Anders Hammer [2 ]
机构
[1] Norwegian Univ Sci & Technol NTNU, Dept Energy & Proc Engn, Ind Ecol Programme IndEcol, Trondheim, Norway
[2] NTNU, Trondheim, Norway
[3] Miljobil Grenland, Porsgrunn, Norway
关键词
climate change; electric vehicles; environmental impact assessment; industrial ecology; lithium-ion battery; transportation; GREENHOUSE-GAS EMISSIONS; PLUG-IN HYBRID; ELECTROCHEMICAL-BEHAVIOR; CATHODE MATERIAL; PERFORMANCE; LINI1/3CO1/3MN1/3O2; RESOURCES; ANODES; IMPACT;
D O I
10.1111/jiec.12072
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Electric vehicles (EVs) have no tailpipe emissions, but the production of their batteries leads to environmental burdens. In order to avoid problem shifting, a life cycle perspective should be applied in the environmental assessment of traction batteries. The aim of this study was to provide a transparent inventory for a lithium-ion nickel-cobalt-manganese traction battery based on primary data and to report its cradle-to-gate impacts. The study was carried out as a process-based attributional life cycle assessment. The environmental impacts were analyzed using midpoint indicators. The global warming potential of the 26.6kilowatt-hour(kWh), 253-kilogram battery pack was found to be 4.6tonnes of carbon dioxide equivalents. Regardless of impact category, the production impacts of the battery were caused mainly by the production chains of battery cell manufacture, positive electrode paste, and negative current collector. The robustness of the study was tested through sensitivity analysis, and results were compared with preceding studies. Sensitivity analysis indicated that the most effective approach to reducing climate change emissions would be to produce the battery cells with electricity from a cleaner energy mix. On a per-kWh basis, cradle-to-gate greenhouse gas emissions of the battery were within the range of those reported in preceding studies. Contribution and structural path analysis allowed for identification of the most impact-intensive processes and value chains. This article provides an inventory based mainly on primary data, which can easily be adapted to subsequent EV studies, and offers an improved understanding of environmental burdens pertaining to lithium-ion traction batteries.
引用
收藏
页码:113 / 124
页数:12
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