Appendix 3—Chemical Polarization and Relaxation

The solution of Fick s second law with the following initial and boundary conditions 303 

If the rate is not infinite at both surfaces the solution is more difficult. For simplicity we neglect internal reactions here. The boundary conditions have to be expressed as -Ifdddx=k5 (c1 - c(0 or L)) at x=0 or L and the solution is given by 

For the case of a normal chemical polarization, c = c c, the above-given expression can be simplified and converted into a voltage function as in Appendix 2. 

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