Novel experimental approach for the characterisation of Lithium-Ion cells performance in isothermal conditions

Abstract Lithium-Ion cells performance is sensitive to the cell temperature. Therefore, experimental evidence needed identify optimal isothermal condition be achieved by a Thermal Management System (TMS). Previous studies have experimentally investigated electrical under adiabatic or controlled environmental temperature (i.e. isoperibolic) thermal boundary conditions. Notably, however, these conditions do not impose uniform cell’s surface temperature, especially at high discharge rates (DR), cooling rate, as TMS would. This research study proposes novel test rig replicating an active based on chamber, forced air convection, micro wind tunnel, and control system for testing in set The proposed two configurations (single-sided, double-sided). double-sided configuration, characterised superior heat transfer coefficient of 128 W m 2 K , guarantees stable average equal value, disuniformity lower than 5 K DRs up 2C temperatures range 0 C o –40 . Moreover, electrical, thermal, electrochemical pouch DR constant temperatures.