Charging control method of battery

The invention provides a charging control method of a battery. The charging control method comprises the following steps: analyzing the battery so as to obtain a changing curve of the positive electrode electric potential and the negative electrode electric potential of the battery under the different electric charging states; determining the maximum charging multiplying power of the battery under the different electric charging states and at different temperatures according to the changing curve of the positive electrode electric potential and the negative electrode electric potential, and generating a relational graph between the maximum charging multiplying power and the electric charging states and the temperatures of the battery according to the maximum charging multiplying power; determining allowable current maximum charging multiplying power of the battery according to the relational graph, the current temperature and the current electric charging state of the battery, and charging the battery according to the current maximum multiplying power. According to the charging control method of the battery, the charging multiplying power of the battery is actively controlled according to the current electric charging state and the current temperature of the battery, the charging multiplying power is in the maximum value from beginning to end, therefore, the rapidest charging is achieved, and the service life of the battery can not be greatly affected.