Abstract Title   Performance of the lithium-ion secondary cells targeting lunar and planetary missions Abstract Author(s)   Yoshitsugu Sone, Osamu Kawasaki, Fumitaka Imamura, Takefumi Inoue, Hiroaki Yoshida Abstract Presenter   Yoshitsugu Sone Abstract   The Japan Aerospace Exploration Agency (JAXA) has been developed lithium-ion secondary cells. Recently, the H-II transfer vehicle (HTV) project developed 200 Ah-class lithium-ion cells with high energy density over 190 Wh/kg. Today, JAXA has started lunar and planetary exploration missions where the energy storage devices with high energy density are also required. In order to apply the lithium-ion cells to the exploration missions, we have to confirm the tolerance of the cell against wide range of temperature. The storage tests at 50? and the discharge tests at -20? revealed the applicability of the cell to the lunar exploration missions.