Environmental Life Cycle Impacts of Automotive Batteries Based on a Literature Review

We compiled 50 publications from the years 2005–2020 about life cycle assessment (LCA) of Li-ion batteries to assess the environmental effects of production, use, and end of life for application in electric vehicles. Investigated LCAs showed for the production of a battery pack per kWh battery capac...

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Main Authors: Christian Aichberger, Gerfried Jungmeier
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/23/6345
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author Christian Aichberger
Gerfried Jungmeier
author_facet Christian Aichberger
Gerfried Jungmeier
author_sort Christian Aichberger
collection DOAJ
description We compiled 50 publications from the years 2005–2020 about life cycle assessment (LCA) of Li-ion batteries to assess the environmental effects of production, use, and end of life for application in electric vehicles. Investigated LCAs showed for the production of a battery pack per kWh battery capacity a median of 280 kWh/kWh_bc (25%-quantile–75%-quantile: 200–500 kWh/kWh_bc) for the primary energy consumption and a median of 120 kg CO<sub>2</sub>-eq/kWh_bc (25%-quantile–75%-quantile: 70–175 kg CO<sub>2</sub>-eq/kWh_bc) for greenhouse gas emissions. We expect results for current batteries to be in the lower range. Over the lifetime of an electric vehicle, these emissions relate to 20 g CO<sub>2</sub>-eq/km (25%-quantile–75%-quantile: 10–50 g CO<sub>2</sub>-eq/km). Considering recycling processes, greenhouse gas savings outweigh the negative environmental impacts of recycling and can reduce the life cycle greenhouse gas emissions by a median value of 20 kg CO<sub>2</sub>-eq/kWh_bc (25%-quantile–75%-quantile: 5–29 kg CO<sub>2</sub>-eq/kWh_bc). Overall, many LCA results overestimated the environmental impact of cell manufacturing, due to the assessments of relatively small or underutilized production facilities. Material emissions, like from mining and especially processing from metals and the cathode paste, could have been underestimated, due to process-based assumptions and non-regionalized primary data. Second-life applications were often not considered.
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spelling doaj.art-a287678085524b7cb812696e8452200c2023-11-20T23:09:02ZengMDPI AGEnergies1996-10732020-12-011323634510.3390/en13236345Environmental Life Cycle Impacts of Automotive Batteries Based on a Literature ReviewChristian Aichberger0Gerfried Jungmeier1LIFE—Institute for Climate, Energy and Society, Joanneum Research Forschungsgesellschaft mbH, Waagner-Biro-Straße 100, 8020 Graz, Styria, AustriaLIFE—Institute for Climate, Energy and Society, Joanneum Research Forschungsgesellschaft mbH, Waagner-Biro-Straße 100, 8020 Graz, Styria, AustriaWe compiled 50 publications from the years 2005–2020 about life cycle assessment (LCA) of Li-ion batteries to assess the environmental effects of production, use, and end of life for application in electric vehicles. Investigated LCAs showed for the production of a battery pack per kWh battery capacity a median of 280 kWh/kWh_bc (25%-quantile–75%-quantile: 200–500 kWh/kWh_bc) for the primary energy consumption and a median of 120 kg CO<sub>2</sub>-eq/kWh_bc (25%-quantile–75%-quantile: 70–175 kg CO<sub>2</sub>-eq/kWh_bc) for greenhouse gas emissions. We expect results for current batteries to be in the lower range. Over the lifetime of an electric vehicle, these emissions relate to 20 g CO<sub>2</sub>-eq/km (25%-quantile–75%-quantile: 10–50 g CO<sub>2</sub>-eq/km). Considering recycling processes, greenhouse gas savings outweigh the negative environmental impacts of recycling and can reduce the life cycle greenhouse gas emissions by a median value of 20 kg CO<sub>2</sub>-eq/kWh_bc (25%-quantile–75%-quantile: 5–29 kg CO<sub>2</sub>-eq/kWh_bc). Overall, many LCA results overestimated the environmental impact of cell manufacturing, due to the assessments of relatively small or underutilized production facilities. Material emissions, like from mining and especially processing from metals and the cathode paste, could have been underestimated, due to process-based assumptions and non-regionalized primary data. Second-life applications were often not considered.https://www.mdpi.com/1996-1073/13/23/6345LCAelectric vehiclebatteryliterature review
spellingShingle Christian Aichberger
Gerfried Jungmeier
Environmental Life Cycle Impacts of Automotive Batteries Based on a Literature Review
Energies
LCA
electric vehicle
battery
literature review
title Environmental Life Cycle Impacts of Automotive Batteries Based on a Literature Review
title_full Environmental Life Cycle Impacts of Automotive Batteries Based on a Literature Review
title_fullStr Environmental Life Cycle Impacts of Automotive Batteries Based on a Literature Review
title_full_unstemmed Environmental Life Cycle Impacts of Automotive Batteries Based on a Literature Review
title_short Environmental Life Cycle Impacts of Automotive Batteries Based on a Literature Review
title_sort environmental life cycle impacts of automotive batteries based on a literature review
topic LCA
electric vehicle
battery
literature review
url https://www.mdpi.com/1996-1073/13/23/6345
work_keys_str_mv AT christianaichberger environmentallifecycleimpactsofautomotivebatteriesbasedonaliteraturereview
AT gerfriedjungmeier environmentallifecycleimpactsofautomotivebatteriesbasedonaliteraturereview