Graphene is fascinating stuff, with tons of promise. Whether it can produce usable results for energy storage is still an open question. But Samsung and a startup called Real Graphene may have at least a start in that realm. GAC, a Chinese auto firm, seems to be promising batteries before the end of what is left of this year. There may be hope in the midst of a dark winter. Samsung’s Lagging Promise In 2017 a team of researchers at the Samsung Advanced Institute of Technology (SAIT) developed a “graphene ball,” promising a 45-percent increase in capacity, and five times faster charging speeds than standard lithium-ion batteries. Hoping to power mobile devices and electric vehicles, SAIT collaborated closely with Samsung SDI* as well as a team from Seoul National University’s School of Chemical and Biological Engineering. *Not a simple abbreviation, SDI stands for “Samsung with the initial letter S, ‘Display’ and ‘Digital’ with D and ‘Interface’ and ‘Internet Component’ with …