Thermal management system and method for power battery

The invention discloses a thermal management system for a power battery. The thermal management system comprises a temperature adjustment device for adjusting the ambient temperature of the power battery; an information acquisition device for acquiring the status information of the power battery and the temperature adjustment device; and a thermal management controller for controlling the temperature adjustment device according to the status information and the preset operation parameters of the power battery so as to adjust the ambient temperature of the power battery. The thermal managementsystem of the invention adjusts the ambient temperature of the power battery of an electric vehicle, so the power battery is allowed to be in a normal operation temperature range for a long time, therange of the usage time of the power battery is expanded, and the cruising ability of the power battery is ensured; and thus, the availability of the electric vehicle in complex environments is improved, and the usage cost of