caa a22 4500 475815491 CHVBK 20180406123809.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1003908023506 doi (NATIONALLICENCE)springer-10.1023/A:1003908023506 Effect of morphology on the performance of metal-hydride electrodes [Elektronische Daten] [K.M. Shaju, V. Kumar, S. Rodrigues, N. Munichandraiah, A.K. Shukla] Electrochemical studies on AB2 type Zr0.5Ti0.5V0.6Cr0.2Ni1.2 metal hydride electrodes with varying particle size suggests that the electrodes with alloy particles of about 60 μm yield the optimum performance. The values for diffusion coefficient of hydrogen in the alloy particles > 25 μm are found to be nearly invariant. Both a.c. impedance and linear polarization data on electrodes with varying particle size suggest that the charge-transfer resistance depends on state-of-charge of the electrodes. A comparison of scanning electron micrographs of fresh electrodes and subsequent to their prolonged charge-discharge cycling suggests that the metal hydride particles develop stress-induced cracks owing to their inherent expansion and contraction during the hydriding/dehydriding processes. Kluwer Academic Publishers, 2000 charge-transfer resistance nationallicence hydrogen-storage alloy nationallicence nickel/metal hydride cell nationallicence particle size effect nationallicence Shaju K.M. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India aut Kumar V. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India aut Rodrigues S. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India aut Munichandraiah N. Department of Inorganic and Physical Chemistry, Indian Institute of Science, 560012, Bangalore, India aut Shukla A.K. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/3(2000-03-01), 347-357 0021-891X 30:3<347 2000 30 10800 https://doi.org/10.1023/A:1003908023506 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1003908023506 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shaju K.M. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India aut NATIONALLICENCE 700 1- Kumar V. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India aut NATIONALLICENCE 700 1- Rodrigues S. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India aut NATIONALLICENCE 700 1- Munichandraiah N. Department of Inorganic and Physical Chemistry, Indian Institute of Science, 560012, Bangalore, India aut NATIONALLICENCE 700 1- Shukla A.K. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/3(2000-03-01), 347-357 0021-891X 30:3<347 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer