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Temperature is a key factor that influences the dynamic performance of lithium-ion batteries. The purpose of this study is to investigate the effects of temperature on dynamic characteristics of lithium-ion battery. In this article, the charge and discharge behaviors are studied through battery tests at different temperatures. Based on the tests, the maximum available charge and discharge capacity...
For safe and reliable operation of lithium-ion batteries in electric vehicles, the real-time monitoring of their internal states is important. The purpose of our study is to find an easily implementable, online identification method for lithium-ion batteries in electric vehicles. In this article, we propose an equivalent circuit model structure. Based on the model structure we derive the recursive...
The paper mainly described how to estimate the state of battery charge (SOC) on electric vehicle (EV). Having deeply researched the lithium-ion (LiFePO4) battery characteristic, the paper established a kind of new battery equivalent circuit model. Meanwhile the paper improved the traditional EKF SOC estimate algorithm, including add the battery internal resistance as a new state variable, real time...
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