Title :
Lithium micro-battery development at the Jet Propulsion Laboratory
Author :
West, W.C. ; Whitacre, J.F. ; Brandon, E.J. ; Ratnakumar, B.V.
Author_Institution :
Jet Propulsion Lab., Pasadena, CA, USA
Abstract :
Recent successes in the effort to miniaturize spacecraft components using MEMS technology, integrated passive components, and low power electronics have driven the need for very low power, low profile, low mass micro-power sources for micro/nanospacecraft applications. Recent work at JPL has focused upon developing thin film/micro-batteries compatible with temperature sensitive substrates. A process to prepare crystalline LiCoO2 films with RF sputtering and moderate (<700°C) annealing temperature has been developed. Thin film batteries with cathode films prepared with this process have specific capacities approaching the practical limit for LiCoO2, with acceptable rate capabilities and discharge voltage profiles. Solid state micro-scale batteries have also been fabricated, with feature sizes on the order of 50 microns
Keywords :
anodes; cathodes; electrochemical electrodes; electrochemistry; electrolytes; lithium; secondary cells; space vehicle power plants; 50 micron; Jet Propulsion Laboratory; Li micro-battery development; LiCoO2; MEMS technology; RF sputtering; annealing temperature; crystalline LiCoO2 films; discharge voltage profiles; integrated passive components; low power electronics; microspacecraft; nanospacecraft; rate capabilities; solid-state micro-scale batteries; spacecraft components miniaturisation; temperature sensitive substrates; Batteries; Laboratories; Lithium; Low power electronics; Micromechanical devices; Propulsion; Space technology; Space vehicles; Sputtering; Temperature sensors;
Conference_Titel :
Applications and Advances, 2001. The Sixteenth Annual Battery Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
0-7803-6545-3
DOI :
10.1109/BCAA.2001.905131
