Skip to Main Content
Fuel Cells
book

Fuel Cells

by Shripad T. Revankar, Pradip Majumdar
May 2014
Beginner to intermediate content levelBeginner to intermediate
748 pages
23h 13m
English
CRC Press
Content preview from Fuel Cells
325Fuel Cell Characterization
where β
a
is the anodic beta coefcient in volts/decade and β
c
is the cathodic
beta coefcient in volts/decade. If a small signal approximation (η is small) is
applied to Equation 8.14, we get the following:
j
R
0
=
+
ββ
ββ
ac
acp
1
, (8.15)
where the new parameter, R
p
, is the polarization resistance. The polarization
resistance behaves like a resistor.
8.2.2.4 Charge Transfer Resistance
When the polarization depends only on the charge transfer kinetics, the
Butler–Volmer equation is given as (Equation 5.78)
j = j
0
(e
αFη/RT
e
(1−α)Fη/RT
). (8.16)
When the overpotential, η, is very small and the electrochemical system is ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Proton Exchange Membrane Fuel Cells

Proton Exchange Membrane Fuel Cells

Zhigang Qi
Hydrogen Storage Technologies

Hydrogen Storage Technologies

Mehmet Sankir, Nurdan Demirci Sankir

Publisher Resources

ISBN: 9781420089684