From Electric Vehicle Society.

Li-ion batteries used in EVs are lasting longer than initially expected.  This opens possibilities for Vehicle to Grid (now deployed in several locations) and second use (happening world wide). I will review some of these cases.  Nevertheless, there are many avenues that can be used to improve lithium-ion batteries in the areas of lifetime, energy density, tolerance to high temperature and cost.  Dr. Jeff Dahn discusses these on the Aug. 5 Canada Talks Electric Cars Webinar. Recorded version at EVSociety.ca

Jeff Dahn, FRSC, O.C.
Professor Emeritus
Dept. of Physics and Atmospheric Science, Dept. of Chemistry
Dept. of Mechanical Engineering, Dept. of Process and Engineering Science