Journal
IEEE TRANSACTIONS ON COMPONENTS AND PACKAGING TECHNOLOGIES
Volume 25, Issue 3, Pages 495-505Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCAPT.2002.803653
Keywords
dynamic model; lithium-ion battery; rate-dependent capacity; resistive-companion; thermal model; transient response; virtual Test Bed
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We present here a complete dynamic model of a lithium ion battery that is suitable for virtual-prototyping of portable battery-powered systems. The model accounts for nonlinear equilibrium potentials, rate- and temperature-dependencies, thermal effects and response to transient power demand. The model is based on publicly available data such as the manufacturers' data sheets. The Sony US18650 is used as an example. The model output agrees both with manufacturer's data and with experimental results. The model can be easily modified to fit data from different batteries and can be extended for wide dynamic ranges of different temperatures and current rates.
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