The sea salt battery is a battery consisting of minerals, carbon, and salt extracted from natural sources. The battery is constantly being improved and currently has a energy density of about 30 Wh/kg and a cost price lower than any existing battery. The battery can be completely discharged of energy and a prototype battery was tested being able to already run more than 7000 recharge and discharge cycles. Demo batteries are currently being developed for tests in real life applications.
Dr Ten won the Jan Terlouw Innovation price in November of 2013 for the development of the Seasalt battery.More information