COTS (commercial off-the-shelf) thin-film solid-polymer Li-ion battery cells appear to possess the requisite physical characteristics for dual use as both electrical energy-storage devices and structural members under a finite load. One realistic application could be small electric unmanned vehicles where the power requirements are in the range of 10 to 100 W and the mechanical loads are relatively small. We tested the multifunctional feasibility of COTS battery cells by designing a specific mechanical testing protocol based on realistic use in unmanned vehicles. Our characterization protocol included randomized bending and shear testing and generation of energy-power relation (Ragone) plots of the COTS cells. The results indicate that multifunction applications of COTS Li polymer battery cells are feasible; however, battery packaging geometry and bonding are critical design issues.
Multifunctional applications of thin film Li polymer battery cells
Multifunktionelle Anwendungen von Dünnschicht-Lithiumpolymerbatteriezellen
2005
6 Seiten, 8 Bilder, 2 Tabellen, 2 Quellen
Conference paper
English