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Electric roads pave the way for smaller car batteries

Sweden’s Chalmers University studies charging on the move

Mark Moran
08 April 2023
When vehicles can be charged dynamically while driving, the battery size can be reduced and still meet all travel demands. This results in lower environmental impact and costs, according to new research from Chalmers. In Sweden, the first electric road will be a 21-kilometre stretch between Örebro and Hallsberg. The Swedish Transport Administration is leading the project and the road is expected to be completed by 2026. It has not yet been decided which type of charging technology will be used (Swedish Transport Administration/WSP)

 

If an electric car charges while driving, the size of the battery can be reduced by up to 70%, and the load on the power grid can be spread out over the day. Charging on the move suits most people, but not everyone. This is shown by a new study from Chalmers University of Technology, Sweden, where for the first time researchers combine the so-called electric road system with real-life driving patterns of Swedish drivers.

The Swedish government has proposed a ban on new petrol and diesel cars...

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