Method for control power of battery, control apparatus, and electric vehicle

A method for controlling a power of a battery, comprising:

• obtaining rated powers of the battery and a current actual power of the battery;
• and
• adjusting an actual power according to a difference between the rated powers and the current actual power when the current actual power is greater than or equal to the rated powers,
• wherein prescribed power parameters further comprise peak powers, the method further comprises:
• controlling a maximum power output by the battery to be not greater than the rated powers after controlling a power output by the battery to drop the power output to the rated powers when the current actual power is greater than the peak powers,
• wherein the method further comprises adjusting the actual power according to a reference power and a comparison power under a condition that a predetermined control rule is satisfied,
• wherein the predetermined control rule comprises:
• within a prescribed time, an actual polarization voltage of the battery being not greater than a maximum polarization voltage of the battery, and an actual amount of accumulated heat of the battery being not greater than a maximum amount of accumulated heat of the battery,
• wherein the prescribed power parameters comprise a discharge peak power or a charge peak power, and the prescribed time is a time adopted for obtaining the charge peak power or the discharge peak power.