Here are selected notes and publications.
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An adaptive sigma-point Kalman filter with state equality constraints for online state-of-charge estimation of a Li(NiMnCo)O2/Carbon battery using a reduced-order electrochemical model. Yalan Bi, Song-Yul Choe. Applied Energy, 2020 (paper)
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A hybrid state of charge estimation method of a LiFePO4/graphite cell using a reduced order model with an extended Kalman filter. Yalan Bi, Xinchen Zhao, and Song-Yul Choe. American Control Conference (ACC), 2019 (paper)
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Automatic estimation of parameters of a reduced order electrochemical model for lithium-ion batteries at the beginning-of-life. Yalan Bi, Song-Yul Choe. IEEE Vehicle Power and Propulsion Conference (VPPC), 2018 (paper)
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An integrated reduced order model considering degradation effects for LiFePO4/graphite cells. Xinchen Zhao, Yalan Bi, and Song-Yul Choe. Electrochimica Acta, 2018 (paper)