Implications for the Design of Battery-Powered Propulsion Systems from a Maintenance Perspective

Abstract

The aviation industry is driven by its pursuit of a cleaner and more sustainable ecosystem while continually growing in passenger volume and emissions on a global level. Conventional engines have already reached their limits for further emission reductions and are likely subject to rising kerosine costs, shifting the focus towards battery-powered propulsion systems. However, batteries are affected by significant aging effects due to demanding operating conditions, which can lead to frequent replacements and high maintenance costs. With this work, we examine these effects for preliminary design phases by applying a degradation model for lithium-ion batteries. For this purpose, we examine the impact of different design and operational conditions on battery life and derive specific recommendations in this regard. By considering specific maintenance-driven trade-offs in early design stages, crucial decisions can be made to optimize the final operating costs of battery-powered aircraft.