Design and Large-Area Fabrication Considerations for 3D Lithium-Ion Battery Electrode Architectures

Abstract

Technology progressions in wearable devices, portable electronics, and electric vehicles have motivated a shift in Lithium-ion batteries to accommodate rapid charge, long cycle life, high power and high energy performance in more compact packaging. An emerging trend to address this technology shift is employing three-dimensional (3D) electrode architectures and Additive Manufacturing (AM) methods to rapidly fabricate batteries with customized geometries on a micron to millimeter scale, changing the way we fundamentally design and manufacture energy storage devices. 3D electrode architectures enhance ion transport in existing intercalation materials, thereby increasing gravimetric and volumetric energy and power densities relative to conventional batteries. Typically, increases in power density are only possible through sacrifices in energy density. Our research has shown that 3D electrode architectures can mitigate these trade-offs. This talk will focus on promising design and AM fabrication methods developed in our research group for high-performance 3D Lithium-ion batteries to enable customizable and scalable electrode architectures for a wide range of applications.