There's good skepticism in this thread, but at the end of the day, I think there's reason to be optimistic about better batteries. * So many different technolo

There's good skepticism in this thread, but at the end of the day, I think there's reason to be optimistic about better batteries. * So many different technologies are showing some promise, and only one needs to be commercialized for a breakthrough. Put another way, this is an engineering an manufacturing issue, not a physics problem. * The battery market is getting bigger and bigger, with ever more money at stake. * Some real big investments into various battery startups and R&D programs have been made, at least several hundred million from various automakers. Either they're taking desperate risks, or else they see real progress on solid-state lithium batteries. So often with technology, you don't see much progress until it arrives, and then things seem to change overnight.