Abstract:

Ni-MH battery is a high-capacity, high-power, pollution-free battery, and widely used in the field of electric vehicles and power storage areas. It is necessary to understand the basic characteristics of NiMH batteries for subsequent modeling, SOC estimation and in the application of its advantages. Therefore, the test on the battery, including charge and discharge characteristics, efficiency characteristics, internal resistance characteristics. According to the test results, draw the corresponding curve and analysis. Test and analysis results show that nickel-metal hydride batteries act the best performance in the SOC of 0.2—0.8.

Key words: nickel-metal hydride batteries, characteristics test, characteristics analysis