Metal hydride hydrogen storage tank for light fuel cell vehicle

摘要

We describe a metal hydride (MH) hydrogen storage tank for light fuel cell vehicle application developed at HySA Systems. A multi-component AB(2)-type hydrogen storage alloy was produced by vacuum induction melting (10 kg per a load) at our industrial-scale facility. The MH alloy has acceptable H sorption performance, including reversible H storage capacity up to similar to 170 NL/kg (1.5 wt% H). The cassette-type MH tank was made up of 2 cylindrical aluminium canisters with transversal internal copper fins and external aluminium fins for improving the heat exchange between the heating medium and the MH tank. Heat supply and removal was provided from the outside using air at T = 15-25 degrees C. The MH tank was tested at the conditions of natural or forced (velocity similar to 2 m/s) air convection. The tests included H-2 charge of the tank at P = 15-40 bar and its discharge at P = 1 bar. The tank in the H2 discharge mode was also tested together with open cathode low-temperature proton exchange membrane fuel cell (LT PEMFC). (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.