The Proton Diffusion Coefficient for the Nickel Hydroxide Electrode
- 1 January 1970
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 117 (6) , 729-733
- https://doi.org/10.1149/1.2407618
Abstract
The diffusion coefficient for protons moving in the hydrated nickel hydroxide lattice has been determined using a potential step technique. It was found to have the value about during charging and during discharging for the nickel hydroxide structure usually found in the nickel electrode of the nickel‐cadmium battery. The temperature dependence of the coefficient has been determined, and it has been concluded that the proton moves in the lattice by thermal diffusion. The enthalpy of diffusion was found to be 2.2 kcal deg−1 mole−1 during charging and 2.3 kcal deg−1 mole−1 during discharging of the electrode.Keywords
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