ALL OXIDE SOLID-STATE LITHIUM-ION CELLS

Solid-state lithium-ion cells have been prepared using thin film Li4Ti 5O12 as the anode, thin film LiCoO2 as the cathode and Li0.33La0.56TiO 3 as the electrolyte, The electrolyte was prepared as a relatively thi ck ceramic with a thickness close to 1 mm. This type of cell develops a voltage of slightly greater than 2 V and is stable to cycling. Perha ps the most interesting aspect of this cell, is that even with a relat ively thick, poor quality ceramic electrolyte, this cell has been able to develop current densities as great as 40 mu A/cm(2). (C) 1997 Else vier Science S.A.