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Wednesday, 4 May 2011

Choosing the Right Batteries for the Future

Norwegian University of Science and Technology (NTNU)
April 21, 2011

One of the most important decisions facing designers of plug-in electric or hybrid vehicles is related to battery choice. Now, researchers at the Norwegian University of Science and Technology (NTNU) have used a life cycle analysis to examine three vehicle battery types to determine which does the best job of powering the vehicle while causing the least amount of environmental impact during its production.

Their results, published in the latest edition of the scientific journal Environmental Science and Technology, show that on a per-storage basis, the nickel metal hydride (NiMH) battery had the most environmental impact, followed by the nickel cobalt manganese lithium-ion (NCM) and iron phosphate lithium-ion (LFP) batteries for all impacts considered, except ozone depletion potential. The researchers also found higher life cycle global warming emissions than have been previously reported.


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