BMW and EC Power will collaborate on low-temperature lithium battery heating technology

　　According to foreign media reports, BMW and the US company EC Power signed an intellectual property agreement (intellectual property agreement) on low-temperature lithium-ion battery technology-All-Climate-Battery (ACB).

　　According to foreign media reports, BMW has signed an intellectual property agreement (intellectualpropertyagreement) on low-temperature lithium-ion battery technology, All-Climate-Battery (ACB), with ECPower of the United States.

　　When the ambient temperature is below the freezing point (freezing point), the operation of most lithium-ion batteries will be affected, which is undoubtedly a problem for electric vehicles and hybrid vehicles. For this reason, car companies need to configure additional heaters for the above-mentioned vehicles to increase the temperature of their on-board batteries.

　　A patented technology of ECPower can create an automatic heating function to heat the battery in a low temperature environment, so that it can maintain normal operation in an environment below freezing. In addition, it only takes a few seconds to reach the optimal operating condition from heating. The battery can be heated in advance or the function can be activated during driving.

　　The fast automatic heating function can also realize the fast charging of electric vehicles in low temperature environments, because the battery cells use customized materials and do not need to use an external power source.

　　The automatic heating mechanism can create an electrochemical interface. It only takes 20 seconds to heat the internal temperature of the battery from minus 20°C to 0°C, and it only takes 30 seconds to heat the internal temperature of the battery from minus 30°C to 0°C, respectively. It consumes 3.8% and 5.5% of battery capacity.