Test purposes
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About Stropower
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SOP Boundary Test Solution
SOP Boundary Test Solution
Test the boundary conditions of the actual use of the cell, under the premise of ensuring safety, the maximum utilization rate of battery is improved by its SOP (state of power).
◆ 1. Search for temperature and power boundary conditions
In the optimum temperature range, the quick charging power or current curve can be found to improve the cycling life of the battery.
◆ 2. Application of temperature and power boundary conditions
At low SOC, the internal resistance of the battery is large, and the battery overtemperature can be prevented by limiting the charging current, which can maximize the utilization rate of the battery compared with case limitless of SOP .
Examples of application scenarios
◆ 1. Search for temperature and power boundary conditions
When battery are installed in cars of real-world driving condition, it needs to be charged at a charging station after power consumption as fast as possible on users' request, however it is sure that with elevated current comes up with higher temperature rise which is very critical affect to safety and operation lifespan. Under the premise of ensured optimal temperature, the car can be fully charged at the fastest speed without thermal hazards.
◆ 2. Application of temperature and power boundary conditions
When the battery in car operating in energy regenerating mode with high SOC (i.e. braking during downhill road or immediate slowdown), the battery overtemperature can be prevented by limiting the charging current to ensure the service life of the battery not affected by either over voltage or temporary over pulse heating.
Test case
Test equipment
2nd Floor, Building 3, East Zone, Modern Enterprise Center, No.2 Zhangba Wu Road, Yanta District, Xi 'an, Shaanxi