Start-up, Qing Tao Energy Development, is operating its first factory for solid-state batteries in Kunshan, east China.
The company aims to to sell batteries for electric vehicles by 2020.
The production line can reportedly produce 0.1 GWh of solid-state batteries per year with an energy density of over 400 Wh/kg. The annual production capacity is then expected to increase to 0.7 GWh by 2020.
Nan Cewen, a member of the Chinese Academy of Sciences, is heading Qing Tao. He founded the solid-state battery company in 2014 together with other graduates from Tsinghua University.