Multiscale Multiphysics Lithium-ion Battery Modeling
The Department of Energy (DOE) Vehicle Technology Office (VTO) and the President's EV Everywhere Grand Challenge will rely upon widespread market adoption of electric-drive vehicles (EDVs) to meet ambitious energy-efficiency and environmental goals. While EDVs promise to curb greenhouse-gas emissions and slash America's need for imported oil, designing high-performance, long-lasting, cost-effective, and safe batteries for these vehicles can present considerable obstacles. EV Everywhere Challenge has set EDV battery targets to reduce costs by 75% and more than double energy density, with the DOE concentrating 80% of its energy storage R&D portfolio on lithium-ion (Li-ion) technology. This project leverages previous computer-aided engineering battery (CAEBAT) activities to further reduce development time and speed safer, optimized Li-ion batteries to market at the lowest possible cost. While multi-physics models for battery safety and abuse simulations are being developed by DOE-sponsored programs and other organizations, they are severely lacking in their response to mechanical stresses and deformations and subsequent electrical, chemical and thermal battery responses.
Sprague, Michael A
last modified Nov 02, 2015 08:27 AM