Patent 7455723 was granted and assigned to Modine Manufacturing Company on November, 2008 by the United States Patent and Trademark Office.
A hydrogen storage and release device (10) is provided for storing and releasing hydrogen from a metal hydride (30) contained in the device (10) based on heat transfer to or from a coolant flow provided through the device (10). The device (10) includes a housing (12) and a metal hydride containing a tube bundle located within the housing (12), with the exteriors (26) of the tubes (16) of the bundle (14) being reduced over a selected length to provide a free flow area for the coolant flow.