Online estimation of the state of charge of a lithium ion cell
نویسندگان
چکیده
A procedure to predict the state of charge of a lithium ion cell using experimental data (cell potential versus time), as it becomes available, is resented. The procedure is based on the physics of the system and provides a realistic estimate of the state of charge of the cell as a function of ime, for a given set of properties of the electrodes. An electrochemical cell model is used to obtain an extended Kalman filter (EKF) for estimating he state of charge (SOC) of a lithium ion cell in which the negative electrode is the limiting electrode. The method could also be used for a cell in hich the positive electrode is limiting. 2006 Elsevier B.V. All rights reserved.
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تاریخ انتشار 2006