Reduction of an Electrochemistry-Based Li-Ion Battery Health Degradation Model via Constraint Linearization and Pade´ Approximation

摘要: This paper examines an electrochemistry-based model of health degradation via anode-side resistive film formation in Lithium-ion batteries. The makes this more tractable and conducive to control design by making two main contributions the literature. First, we adaptively solve model’s algebraic constraints using quasi-linearization. improves execution speed compared solving optimization. Second, reduce order deriving a family analytic Pade approximations spherical diffusion equations. carefully compares these other published methods for reducing Finally, concludes with simulations battery that highlight significant impact proposed reduction approach on overall accuracy simulation speed.© 2010 ASME