Samsung Almost Doubles Li-Ion Battery Capacity – in the Near Future

Dean Sigler Electric Powerplants, Sustainable Aviation Leave a Comment

Several sources report on Samsung’s announcement that they have developed a new technology that enables them to coat silicon battery cathodes with high crystal graphene, virtually doubling the capacity of lithium-ion batteries. Of course, Samsung relates this immediately to their popular smartphones and tablets, but the significance of this is not lost on electric vehicle designers.  Doubling the range of EVs “without adding a single pound of weight” would be a true game changer.  But don’t get excited too quickly. Silicon electrodes have been a major research effort for people like Dr. Yi Cui, who spoke at this year’s Electric Aircraft Symposium.  Issue surrounding their successful use have included silicon’s expansion when being charged and contraction when being discharged.  This errant flexibility causes eventual disintegration of the electrodes and shuts down the battery.  Attempts to use silicon nanowires still have led to embrittlement. Kompulsa.com reports Cho Jin-young from BusinessKorea explaining, “Currently, the development of high-capacity battery materials has been mostly done …