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The battery thermal management system (BTMS) is essential to the use of Li-ion batteries. Different cooling methods have been proposed which performances are obviously various. In order to provide guidance on the selection of cooling methods, this study reviews and compares the existing cooling methods by using heat transfer coefficient (HTC) and manageable heat flux (MHF) as key performance indicators. Results show that the cold plate based cooling method can achieve the highest HTC and MHF, followed by PCM based cooling, heat pipe based cooling, immersion cooling, and air based cooling methods. To effectively manage heat dissipation, using liquid as cooling media represents the development direction of future cooling methods. However, as a component of battery systems, the selection of cooling methods also depends on other factors, such as energy density and energy consumption of cooling. A holistic system optimization is needed to find the most proper option.