Improved Direct Methanol Fuel Cell Stack

Patent · 07 March 2005

OSTI ID:880347

Wilson, Mahlon S ^[1]; Ramsey, John C ^[1]

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1. Los Alamos, NM

A stack of direct methanol fuel cells exhibiting a circular footprint. A cathode and anode manifold, tie-bolt penetrations and tie-bolts are located within the circular footprint. Each fuel cell uses two graphite-based plates. One plate includes a cathode active area that is defined by serpentine channels connecting the inlet and outlet cathode manifold. The other plate includes an anode active area defined by serpentine channels connecting the inlet and outlet of the anode manifold, where the serpentine channels of the anode are orthogonal to the serpentine channels of the cathode. Located between the two plates is the fuel cell active region.

• Research Organization: Los Alamos National Laboratory
• DOE Contract Number: W-7405-ENG-36
• Assignee: The Regents of the University of California (Los Alamos, NM)
• Patent Number(s): US 6864004
• Application Number: 10/771222
• OSTI ID: 880347
• Country of Publication: United States
• Language: English