Cathode Materials for Solid State Microbatteries-A Case Study
Author Affiliations
- 1Department of Physics, Andhra Loyola College, Vijayawada – 520008, INDIA
Res.J.chem.sci., Volume 2, Issue (3), Pages 74-79, March,18 (2012)
Abstract
As the general tendency of all advanced technologies is towards miniaturization, it is evident that the future development of batteries is aimed at smaller dimensions with higher-energy densities. A microbattery is an energy conversion/storage device, designed and built with microelectronics thin film fabrication technologies with footprints of the order of 50-100 μm2 having capabilities to provide currents of the order of 100-200μA/cm2 with storage capacities in the range of 70-200 μAh/cm2. Lithium rechargeable batteries are gaining more importance now a days because of their capacity compared with conventional rechargeable systems and due to their wide potential use, ranging from portable devices to heavy electric vehicles. The use of transition metal oxides as intercalation cathodes has turned the lithium power sources into the current generation. Lithium transition metal oxides have received significant attention due to their industrial applications especially in rechargeable lithium-ion batteries. These materials are applied on the cathode side where Li is, respectively extracted and stored during the charge-discharge cycle of the battery.
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