Investigations on rate constants of the charging/discharging processes for metal hydride electrodes

Zhang, Bo; Wu, Wenyuan; Bian, Xue; Tu, Ganfeng

doi:10.1016/j.electacta.2012.10.004

Cited by 8 publications

(1 citation statement)

References 27 publications

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“…We also need the exchange current density for the maximum hydrogen content which is measured to be 257 mA/g. electrodes [51]. However, the initial and final stages of the dehydrogenation are not very well captured; still, the differences are always less than 5%.…”

Section: Derivation Of An Electrolytic (De-)hydrogenation Modelmentioning

confidence: 95%

Electrochemical investigation and modelling of LaNi4.77Al0.23 thin-films sputtered on glass wafers

Khazaeli

Falahati

Barz

2019

Journal of Alloys and Compounds

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In the present work, we report on the microfabrication of metal hydride thin-film electrodes which can be utilized for rechargeable microbatteries or sensor applications. A multi-layer deposition technique is developed based on physical vapor deposition to fabricate the thin-film electrodes on a glass substrate. The morphology and the structure of the thin-film electrodes are studied by using Field Emission Scanning Electron Microscopy coupled with an Energy Dispersive Spectroscopy module. The surface composition of the thin-film electrodes are determined using X-ray Photoelectron Spectroscopy. Cyclic Voltammetry and galvanostatic charge-discharge measurements are performed to obtain insights into the electrochemical performance of the electrodes. Finally, a semi-empirical model is derived which allows for the determination of the equilibrium potential of the electrode as a function of its hydrogen content.

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Section: Derivation Of An Electrolytic (De-)hydrogenation Modelmentioning

confidence: 95%