Abstract

Present, the existing open-circuit voltage method and ampere-time integration method have large errors in estimating the SOC of aluminum air batteries, which are not accurate enough. To overcome this shortcoming, a new SOC estimation algorithm of aluminum air batteries based on open-circuit voltage method and time-integration method is proposed. A simulation model is established by using the method of phased SOC estimation. The simulation results show that this method can effectively reduce the errors caused by the first two methods, and ultimately control the SOC estimation within a high precision range.

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