Mathematical Model for Lithium-Ion Intercalation into the Cathode Active Material of a Lithium-Based Cell/Battery

DATE PUBLISHED
February 27, 2019
SECTION
Articles

Abstract

The model describing the cell discharge behavior for short cell discharge periods was developed on the basis of lithium-ion diffusion in the cathode active material as the rate limiting step. The one-dimensional model for the slab type geometry predicts the following transient behavior: lithium-ion concentration profile, lithium-ion concentration boundary layer development, electrolyte-solid cathode active material interfacial current density, and specific active material charge storage capacity as well as fractional utilization of the active material.

Keywords

intercalation, lithium-ion battery, cathode active material, diffusion-limited

References

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Sandhu, S.S., Cashion, C.J., Fellner, J.P. (2018), Theoretical and Experimental Characterization of a Rechargeable Hybrid Cathode for Lithium-based Batteries. Paper number 49b published in the Proceedings of 2018 AIChE Annual Meeting, Pittsburgh, Pa., October 28-November 1, 2018. The 2018 Proceedings number: 978-0-8169-1108-0.

Author Details

Sarwan S. Sandhu

Clayton J. Cashion

Joseph P. Fellner