Battery capacity has increased by more than 50 kW across plug-in hybrid/battery electric vehicles (PHEVs/BEVs), and even 150 kW and higher batteries are increasingly capable of fast charging. These advances in battery technologies are creating a parallel need for Battery Heat Management Systems (BTMS) - the only way to achieve greater range, longer life and better battery performance. While passive thermal management, such as air-cooled systems, will be the key technology for HEVs, liquid cooling and active thermal management will become common for PHEVs and BEVs, Frost & Sullivan experts estimate.
"The use of liquid glycol through cooling tubes and plates between the modules will not only help OEMs maintain battery efficiency, but also enable their vehicles to meet stringent battery standards," says Arvind Noel Xavier Leo, Industry Analyst, Mobility. According to the analyst, OEMs will increasingly use active thermal management systems in the future that combine all thermal requirements for battery, engine, power electronics and cabin temperature.