Abstract Title   Advanced Li ion cell study Abstract Author(s)   E. Simon Abstract Presenter   E. Simon Abstract   Li ion cells have been qualified for different space applications. To decrease the power system mass, activities are performed on advanced Lithium ion batteries to reach a specifc energy of 250 Wh/kg. Results of a study on electrode materials for high specific energy lithium ion batteries will be presented. Positive electrode materials were studied in particular. High voltage spinel and coated-LiCoO2 were studied in more details. Electrochemical properties, cyclability, self-discharge results in button cells and pouch cells will be presented.