dc.contributor.author | Afshar, Sepideh | |
dc.contributor.author | Morris, Kirsten | |
dc.contributor.author | Khajepour, Amir | |
dc.date.accessioned | 2017-11-16 17:24:52 (GMT) | |
dc.date.available | 2017-11-16 17:24:52 (GMT) | |
dc.date.issued | 2017-09-12 | |
dc.identifier.uri | http://arxiv.org/abs/1709.03970 | |
dc.identifier.uri | http://hdl.handle.net/10012/12632 | |
dc.description.abstract | Lithium-ion batteries are used to store energy in electric vehicles. Physical models based on electro-chemistry accurately predict the cell dynamics, in particular the state of charge. However, these models are nonlinear partial differential equations coupled to algebraic equations, and they are computationally intensive. Furthermore, a variable solid-state diffusivity model is recommended for cells with a lithium ion phosphate positive electrode to provide more accuracy. This variable structure adds more complexities to the model. However, a low-order model is required to represent the lithium-ion cells' dynamics for real-time applications. In this paper, a simplification of the electrochemical equations with variable solid-state diffusivity that preserves the key cells' dynamics is derived. The simplified model is transformed into a numerically efficient fully dynamical form. It is proved that the simplified model is well-posed and can be approximated by a low-order finite-dimensional model. Simulations are very quick and show good agreement with experimental data. | en |
dc.description.sponsorship | Automotive Partnership Canada (APC) | en |
dc.description.sponsorship | Ontario Research Fund (ORF) | en |
dc.description.sponsorship | General Motors | en |
dc.language.iso | en | en |
dc.subject | State Of Charge Estimation | en |
dc.subject | Electrochemical Equations | en |
dc.subject | Variable Solid-State Diffusivity Model | en |
dc.subject | Low-Order Model | en |
dc.title | Efficient electrochemical model for lithium-ion cells | en |
dc.type | Preprint | en |
dcterms.bibliographicCitation | Afshar, S., Morris, K., & Khajepour, A. (2017). Efficient electrochemical model for lithium-ion cells. ArXiv:1709.03970 [Math]. Retrieved from http://arxiv.org/abs/1709.03970 | en |
uws.contributor.affiliation1 | Faculty of Mathematics | en |
uws.contributor.affiliation2 | Applied Mathematics | en |
uws.typeOfResource | Text | en |
uws.typeOfResource | Text | en |
uws.peerReviewStatus | Unreviewed | en |
uws.scholarLevel | Faculty | en |