According to a recent tweet from @evleaks, graphene batteries are on the horizon. Said to be working on the lithium-ion alternative is Samsung, who reportedly hopes to have at least on phone in either 2020 or 2021 with a graphene battery. As @evleaks tweets, "...

Flexible electronics have always seemed like an unobtainable piece of science fiction, but Samsung announced today that it has developed a process which may speed the development of such devices. The key, apparently, is graphene. Graphene has long been touted...