Correction to: Ionics

https://doi.org/10.1007/s11581-021-03961-x

The originally published version of this article contains an error in Eq. 2.

The correct Eq. 2 is shown below.

$$ \sigma =\frac{Z^{\prime }}{Z^{\prime 2}+{Z}^{\prime \prime 2}}\ast \frac{l}{A} $$
(2)

The original article has been corrected.