Lithium-ion batteries (LIB) involve intertwined aging mechanisms that depend critically on usage conditions, as do solar cells, polymeric materials, biomedical devices, etc. Understanding how degradation occurs across realistic use cases is essential to accelerate materials design and improve battery management systems (BMS) . As a well-accepted practice, a vast majority of laboratory battery studies is conducted under constant current discharge profiles . In actual use cases, however, LIBs are subjected to dynamic current profiles during discharge .