Thursday, 5 October 2017: 11:19
Maryland A (Gaylord National Resort and Convention Center)
Lithium metal has been investigated extensively recently due to its high thoretical capacity and low potential. It can also enable the unliatiated cathodes for next generation lithium batteries, such as lithium sulfur batteries and lithium air batteries. However, the uncontrolled lithium dendirtes and huge electrolyte consuption during electrochemcial cycling largely hinder its pratical use. Herein, we deposite ultrathin, conformal metal oxides (ZnO, TiO2 and MgO) by using atomic layer depostion onto lithium metal surface. The electrochemical measurements of symmetric cells and assymmetric cells will be presented for all metal oxides protected lithium. We will also show the mechansims for lithium dendrite supression behind the cycling performacne. More importantly, the charge-discharge results of lithium suflur batteries with metal oxides protected lithium will be showed.