Microstructures and electrochemical properties of La0.7Ce0.3Ni3.75−xCu0.75Mn0.35Al0.15(Fe0.43B0.57)x hydrogen storage alloys

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

“…It is believed that the diffusion rate of ions in the liquid electrolyte is fast enough that this process can be omitted. For the metal hydride electrode, the previous investigations reported that the hydrogen diffusion coefficient in the bulk alloy varied from 10 −10 to 10 −12 cm 2 s −1 [18][19][20][21], which were about seven orders of magnitude smaller than the traditional system. On the other hand, the high electrocatalytic surface of the metal hydride electrodes is in favor of the charge transfer process.…”