Title:
STORAGE TANK HAVING POLYMERIC HYDROGEN DIFFUSION BARRIER AND METHOD OF PREVENTING HYDROGEN DIFFUSION
Document Type and Number:
WIPO Patent Application WO2004026694
Kind Code:
A3
Abstract:
An electrochemically active hydrogen diffusion barrier (2), which comprises an anode layer (6'), a cathode layer (6''), and an intermediate electrolyte layer (8), which is conductive to protons and substantially impermeable to hydrogen. A catalytic metal present in or adjacent to the anode layer (6') catalyzes an electrochemical reaction that converts any hydrogen that diffuses through the electrolyte layer (8) to protons and electrons. The protons and electrons are transported to the cathode layer (6'') and reacted to form hydrogen. The hydrogen diffusion barrier (2) is applied to a polymeric substrate (12) used in a storage tank to store hydrogen under high pressure. A storage tank equipped with the electrochemically active hydrogen diffusion barrier (2), a method of fabricating the storage tank, and a method of preventing hydrogen from diffusing out of a storage tank are also disclosed.
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Inventors:
LESSING PAUL A
Application Number:
PCT/US2003/026652
Publication Date:
June 10, 2004
Filing Date:
August 25, 2003
Export Citation:
Assignee:
BECHTEL BWXT IDAHO LLC (US)
International Classes:
B01D53/00; C25B9/00; C25D17/00; F17C1/16; H01M6/00; H01M8/04; H01M8/10; B65D; (IPC1-7): H01M6/00; B01D53/00
Foreign References:
| US6319293B1 | 2001-11-20 | |||
| US5647970A | 1997-07-15 |
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