Metal hydride-hydrogen tank system with a frost-start capability

US12347899B2 · kind B2 · utility

Assignees

• Helmholtz-Zentrum hereon GmbH · DE
• VOLKSWAGEN AKTIENGESELLSCHAFT · DE
• Panco GmbH · DE
• Stühff GmbH · DE

Inventors

• Julian Jepsen · Hamburg, DE
• José M. Bellosta Von Colbe · Wentorf (Amt Sandesneben), DE
• Thomas Klassen · Hamburg, DE
• Martin Dornheim · Reppenstedt, DE
• Klaus Taube · Hamburg, DE
• Julián Puszkiel · Barcelona, ES
• Anna Kallias · Eschede, DE
• Holger Stühff · Geesthacht, DE
• Dieter Platzek · Bad Hersfeld, DE
• Ignasi Cabezas Marce · Vilanova i la Geltrú, ES

Key dates

• Filing date: Dec 18, 2020
• Grant date: Jul 1, 2025
• Expiry date: May 30, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T90/40
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A cold start device for an exothermic hydrogen consumer such as a fuel cell, as well as a method for operating an exothermic hydrogen consumer with a metal hydride storage system. An exothermic hydrogen consumer such as a fuel cell with an efficient cold start device which can be brought into operation rapidly and. does not require a pressure tank is provided. The cold start device is available for an unlimited number of start-up procedures. At least one starter tank is filled with a metal hydride which has an equilibrium pressure for desorption of at least 100 kPa at a temperature of −40° C., as well as at least one operating tank which is filled with at least one metal hydride, which has an equilibrium pressure of <100 kPa at temperatures of <0° C., and wherein the starter tank is incorporated into the operating tank.