by josh perry, editor
a recent article from windpower engineering and development, written by ed fontes, the chief technology officer of comsol, explained that computer modeling and simulations can help engineers design more efficient batteries in electric vehicles by taking into consideration thermal management components.
cfd of the internal short circuit of a lithium-ion battery. (comsol)
as fontes wrote, “the components required for thermal management and current collection contribute to the total weight of the battery system. the design of these components can substantially influence the energy density of a battery system.”
power density is a critical component for battery efficiency because a high power-density can recapture high amounts of energy quickly to produce a faster recharge. engineers need to design systems that can cope with high current densitites during recharge and lower current densities during discharge as well as proper thermal management.
without optimized thermal management, battery life is also variable. wear and failure are potential consequences of not managing the heat in and around the battery, which is of particular importance in the high-heat environments that electric vehicle batteries are located.
“fundamental studies of battery components, as well as the development of state of health methods, can be very efficiently carried out by combining experimental measurements of electrochemical impedance spectroscopy (eis) with mathematical models,” fontes explained.
to read the full article, visit https://www.windpowerengineering.com/power-storage/modeling-simulation-meeting-challenges-battery-design.