α=1/2 BV: i = 2 i₀ sinh(Fη/(2RT)); rewrite(exp) residual 0; i(η=0)=0

Layer 2 — Chemistryin the electroanalytical-chemistry subtree

Sympy-exact symbolic witness of the symmetric Butler-Volmer equation's identity with the exponential-expansion form and its zero-overpotential current intercept. Setup: write BV_sinh = 2 i₀ sinh(Fη/(2RT)) and the two-branch expansion…

Related concepts

Butler-Volmer: i = i₀ [exp(αFη/RT) − exp(−(1−α)Fη/RT)] (symmetric α=1/2 ⇒ 2 i₀ sinh)
Galvanic cell
Faraday's law of induction

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