This one will run and run, if you forgive the pun! I've had conversations with many battery experts and manufacturers that hold this view, but many others don't. Largely those with a V2G or second life battery business model. But many trials are ongoing, including a large one in the UK by CENEX. It will be very interesting to see as the V2G concept is pretty significant in what could be achieved, if batteries aren't shredded in the process.
To be more specific, the use of an EV with V2G tech could reduce the working lifespan of an EV battery pack to under 5 years time, according to the new work. The researchers note, though, that simply delaying the charging of EVs as a means of balancing the grid would have only a “negligible” effect on EV batteries, and could thus represent a better option. However, this could prove to not be the case in environments warmer than “room temperature.