Journal article
Experimental investigation of the swelling/shrinkage of a hydride bed in a cell during hydrogen absorption/desorption cycles
G-INP, UJF, CNRS UMR 5521, 3SR Lab, Domaine Universitaire, BP53, 38041 Grenoble Cedex 9, France1
CEA Grenoble LITEN/DTBH/LTH, 17 Rue des Martyrs, F-38054 Grenoble Cedex 9, France2
The storage of hydrogen in hydride materials is currently much researched as a mean of energy storage. This reversible storage is achieved by successive hydriding and dehydriding reactions. During these reactions, the material undergoes structural transformations which result in swelling of the hydride powder grains due to the absorption of hydrogen.
This phenomenon can generate major mechanical stresses on the cell containing the hydride. The present experimental study examines the cyclic swelling of a granular bed consisting of hydride Ti–Cr–V + Zr–Ni. Two superimposed phenomena are identified: a cyclic rearrangement causing a reduction and then an increase in porosity coupled with gradual densification of the stack.
Language: | English |
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Year: | 2012 |
Pages: | 16031-16041 |
ISSN: | 18793487 and 03603199 |
Types: | Journal article |
DOI: | 10.1016/j.ijhydene.2012.07.091 |