A thermal management system for the at least one energy cell. The thermal management system includes a cold plate cell holder comprising at least one energy cell reservoir structured to retain the energy cell(s) and surround at least a first portion of a surface of the energy cell(s), and to thermally cool the energy cell(s). The system additionally includes a bus bar header to which one or more bus bar can be physically and thermally connected, and at least one oscillating heat pipe (OHP) cover disposable around a second portion of the surface of the energy cell(s). The OHP cover(s) is/are thermally and mechanically connectable to the cold plate cell holder when disposed around the energy cell(s). The OHP cover(s) is/are structured and operable to thermally cool the energy cell(s) via heat absorption from the second portion of the surface of the energy cell(s) when disposed around the energy cell(s).