Mathematical Modeling of Lithium Batteries by Krishnan S. Hariharan Piyush Tagade & Sanoop Ramachandran

Author:Krishnan S. Hariharan, Piyush Tagade & Sanoop Ramachandran
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

(5.176)

The side reaction results in the formation of a resistive film of reaction products on the electrode surface (SEI). It should be noted that the overpotential driving the side reaction is affected by the Ohmic drop across this film. The film resistance is calculated as,

(5.177)

where, is the conductivity of the SEI film while is the film thickness which is obtained from,

(5.178)

That is, the film evolution depends on its molecular weight (), density () and the rate of the side reaction. To take into account the degradation, the Eq. 5.30 for the negative electrode is modified to,

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