Evaluation and Analysis of a New Solid-State Rechargeable Microscale Lithium Battery

Battery characteristics and behavior under a wide range of tests are an integral part in the development of specific properties and performance for a newly developed battery. The results are used to classify the battery working conditions and to set the parameters of its power management system and control algorithm to incorporate innovative features to manage and improve the battery´s life cycle and operation. This paper will present experimental evaluation and analysis of results conducted on a new solid-state rechargeable microscale lithium batteries (microbatteries) developed by Jet Propulsion Laboratory for aerospace applications. Analysis includes overcharge, undercharge, faulty conditions, and application of several charge and discharge methods during normal mode of operation. To take advantage of the voltage and capacity yield, the microbatteries are analyzed individually while connected in parallel, series, or parallel-series configurations. The results are used to develop a dynamic battery power management system. A description of the system and the results obtained from a prototype circuit, designed to validate its operation, will also be discussed.