Published 2020-06-18

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Mistra Innovation 23 supporting more efficient electric vehicles

Electric vehicles (EVs) are seen as a self-evident aspect of reducing dependence on fossil fuels. But in today’s EVs, the batteries are not used optimally. A new collaboration, supported by Mistra Innovation 23, is intended to improve their capacity and durability.

In present-day EVs, the full power of battery cells is not used. The cells with the worst capacity determine performance, thus limiting the entire battery system’s total capacity. The BattVolt project, involving SEM AB (Swedish Electro Magnets), Scania, Chalmers University of Technology and Linköping University, is intended to change this situation. Developing a new type of electronics and refined steering strategies to optimise the use of lithium batteries in heavy goods vehicles and buses will enable uneven functioning of the system to be managed and every battery cell to be used to full capacity. In the project, this technology is regarded as having huge potential.

‘The goal of the collaboration is improved performance, longer service life, opportunities for reuse and lower total cost. Requirements include fewer battery cells; we can mix old and new battery packs, and a charged vehicle will be able to charge a discharged one. We’re also looking into improved safety,’ says Tom Gustavsson, CEO of SEM.

BattVolt will run from 2020 to 2023, and Mistra Innovation 23 is supporting the project with SEK 8 million.

More projects in Mistra Innovation 23

The following four projects have also received funding within Mistra Innovation 23.

SmartSol has the purpose of promoting development of an integrated solution for heating, cooling and electrical systems for European buildings with solar-cell (photovoltaic) technology and geothermal heat pumps. The project is being run in collaboration with KTH Royal Institute of Technology, Sonority Sustainable Energy AB, Bengt Dahlgren Stockholm Geo AB and Solhybrid AB in Småland.

ProECOnLub is focused on developing and implementing methods and working principles for environmentally smart lubricants and cooling liquids with nano-carbon additives. Ecobränsle (now part of Energifabriken AB), Accu-Svenska AB, Purmo Group Sweden, the Industrial Research Centre ScanOats and Lund University are jointly running this project.

PolyFree is to work on materials free from isocyanates and BPA (bisphenol A) for use in products that come in contact with food and people, and in biomedical applications. Mistra’s partners are Cyclicor AB, Easy Dist Sweden AB and Lund University.

FSMT, focused on scaling up Triblade rotor-blade technology for large wind turbines, is run in collaboration with the Faculty of Engineering (LTH) of Lund University, SSAB EMEA AB and Winfoor AB.