Hydrolite Ltd

Elbit Systems Land and C4i Ltd.

Celera Corporation

Miles Page

Shimshon Gottesfeld

Ervin Tal-Gutelmacher

Yair Paska

Ben Achrai

Dario Dekel

Ziv Gottesfeld

Charly David Azra

Gal Tamir

Anna Kitayev

Yair Benjamine

Self-refueling power-generating systems and methods of configuring them are provided, which enable operation in a self-sustained manner, using no external resource for water, oxygen or hydrogen. The systems and methods determine the operation of reversible device(s) in fuel cell or electrolyzer mode according to power requirements and power availability, supply oxygen in a closed circuit, compressing received oxygen in the electrolyzer mode, and supplying water or dilute electrolyte in a closed circuit in conjunction with the closed oxygen supply circuit by separating oxygen produced by the reversible device(s) in the electrolyzer mode from the water or dilute electrolyte received from the reversible device(s). Membrane assemblies may comprise a binder and be hot-pressed to enhance their long-term performance and durability.

Self-refueling power-generating systems

Disclosed is a method of operating an Alkaline Membrane Fuel Cell (AMFC) with direct ammonia feeding. The method may include providing AMFC comprising an anode inlet for receiving ammonia and a cathode inlet for receiving oxygen containing gas; operating the AMFC at an operation temperature of above 80&#xb0; C.; providing the oxygen containing gas; to a cathode of the AMFC at a pressure above the equilibrium vapor pressure of water at the operation temperature; maintaining the pressure during the operation of the AMFC as to maintain water in substantially liquid phase near the cathode; and providing the ammonia to an anode of the AMFC.

Direct ammonia alkaline membrane fuel cell and method of operating same

Some aspects of the invention may be directed to a catalyst layer for anodes of Alkaline Exchange Membrane Fuel Cells (AEMFC). Such catalyst layer may include catalyst nanoparticles and an ionomer. Each catalyst nanoparticle may include one or more nanoparticles of catalytically active metal supported on at least one nanoparticle of crystalline RuO. The diameter of the at least one nanoparticle of the crystalline RuOmay be about order of magnitude larger than the diameter of the one or more nanoparticles of catalytically active metal.

Multi-metallic electro-catalyst for alkaline exchange membrane fuel cells and method of making same

The invention relates to a system and method of operating alkaline exchange membrane fuel cells in a bipolar configuration. The system () may include a first fuel cell (A) and a second fuel cell (B) adjacent to the first fuel cell. Each of the first and second fuel cells may include: a cathode configured to generate hydroxide ions from water, oxygen and electrons, an anode configured to generate water and electrons from the hydroxide ions and hydrogen received from a hydrogen source, and an alkaline exchange membrane configured to transfer the hydroxide ions from the cathode to the anode, and to transfer water from a vicinity of the anode to a vicinity of the cathode. The first fuel cell (A) and a second fuel cell (B) are connected by a porous bipolar plate (A) positioned inbetween. A pressure profile across the first bi-polar plate may drop from higher level near the anode of the first fuel cell (A) to lower level near the cathode of the second fuel cell (B) so that water may be transferred from the anode of the first fuel cell (A) to the cathode of the second fuel cell (B).

Alkaline exchange membrane fuel cells system having a bi-polar plate

Embodiments of the invention provide an ammonia operated fuel cell system including an alkaline membrane fuel cell (AMFC) having an anode, and an ammonia thermal cracker including a combustion chamber, the cracker being in gas communication with an ammonia source, and configured to provide a supply of Hdirectly to the AMFC anode.

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Hod Hasharon, Israel

Miles Page