|About this Abstract
||MS&T21: Materials Science & Technology
||Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
||Direct-write 3D Printing of Electrodes for High Power Density Batteries
||Amjad S. Almansour, Mrityunjay Singh, Michael Halbig, Daniel Gorican
|On-Site Speaker (Planned)
||Amjad S. Almansour
The development of batteries with high specific power and energy densities will enable more efficient implementation of all-electric aircraft and urban air mobility (UAM) technologies. Additive manufacturing technologies can be leveraged to produce engineered 3-dimensional cell structures with increased electrolyte/electrode interfacial area and high density, yielding increased power and energy densities. Direct-write additive manufacturing (DWAM) technology allows for the deposition of highly solid-loaded inks with excellent dimensional accuracy. Ink rheology was adjusted to optimize material characteristics of the final electrodes, including the addition of carbon nanoparticles to increase the final electrode conductivity. Engineered LiFePO4 (LFP) cell structures were manufactured, sintered, and characterized by leveraging the submicron accuracy of direct write printing. The scanning electron microscopy of sintered electrodes show dispersion of conductive carbon nanopowders throughout the microstructure. Theoretical estimation of surface area of engineered microstructures in this study show the potential of doubling the final power density using this design.