|About this Abstract
||MS&T22: Materials Science & Technology
||Energy Materials for Sustainable Development
||Design, Modeling, and Direct Write Additive Manufacturing (DWAM) of Electrodes for Batteries
||Amjad S. Almansour, Roy Sullivan, Mrityunjay Singh, Michael Halbig, Daniel Gorican
|On-Site Speaker (Planned)
||Amjad S. Almansour
There are critical needs for light weight and multifunctional compact energy systems which can be manufactured on-demand and can store as well as rapidly discharge the energy, and provide optimum mission performance. To meet the above needs, modeling and additive manufacturing technologies were leveraged to design and produce engineered three-dimensional (3D) electrode structures with increased interfacial area which yields increased power and energy densities. In this work, a novel engineered three-dimensional interdigitated Lithium Iron Phosphate LiFePO4 (LFP) cathode structure was designed and manufactured using direct-write additive manufacturing technology (DWAM). Ink rheology was adjusted to optimize material characteristics of the final electrodes, including the addition of carbon nanoparticles. Printed cathodes were sintered and microstructural characterization was carried out. In addition, modeling of the electrochemical performance of a 3D galvanic cell was performed and compared to that of conventional 1D planar cells and the benefits of the 3D structures were summarized.