Ffi Ionix Ip, Inc.

Xergy Incorporated

Other

USA Fortescue Ip, Inc.

Ffi Ionix, Inc.

Bamdad Bahar

William H Parmelee

Jacob Sumner Zerby

Taoli Gu

Zhefei Li

Steven Naugler

Peter Golben

Luyu Jin

Harish Opadrishta

Scott Thomas Fackler

Omar Abdelaziz

David McAndrews

Qu Ming

John Paul Saltwick

Sai Yellamilli

Abhishek Bandlore

Kryiacos Zachary

Brian Kienitz

Mengjie Chen

Chulsung Bae

Qiuying Zhang

Xhefei Li

Brent Alden Junge

Natarajan Venkatakrishnan

Jason David Woods

Kyriacos Mark Zachary

Jason Woods

Benjamin Kredensor

Xuzhe Cao

Monica Joan McNicol

Jacob Zerby

Steve Naugler

Walther Grot

Sarah Toombs

Omar Abdelaziz Ahmed Abdelaziz

Jack Saltwick

Scott Fackler

Richard Sherrer

Xiaobing Liu

An electrochemical compressor utilizes an anion conducting layer disposed between an anode and a cathode for transporting a working fluid. The working fluid may include carbon dioxide that is dissolved in water and is partially converted to carbonic acid that is equilibrium with bicarbonate anion. An electrical potential across the anode and cathode creates a pH gradient that drives the bicarbonate anion across the anion conducting layer to the cathode, wherein it is reformed into carbon dioxide. Therefore, carbon dioxide is pumped across the anion conducting layer. The compressor may be part of a refrigeration system that pumps the working fluid in a closed loop through a condenser and an evaporator.

Anionic electrochemical compressor and refrigeration system employing same

An anion exchange polymer includes aryl ether linkage free polyarylenes having aromatic/polyaromatic rings in polymer backbone and a tethered alkyl quaternary ammonium hydroxide side groups. This anion exchange polymer may be utilized in an anion exchange process and may be made into a thin anion transfer membrane. An ion transfer membrane may be mechanically reinforced having one or more layers of functional polymer based on a terphenyl backbone with quaternary ammonium functional groups and an inert porous scaffold material for reinforcement. An anion exchange membrane may have multilayers of anion exchange polymers which each containing varying types of backbones, varying degrees of functionalization, or varying functional groups to reduce ammonia crossover through the membrane.

Anion exchange polymers and anion exchange membranes for direct ammonia fuel cells

A heat exchanger incorporates a metal hydride heat exchanger and mitigates the fluid mixing process, and thus greatly improves the heat transfer efficiency and heat recovery processes. The metal hydride heat exchanger has a container for the metal hydride that has a large aspect ratio. A plurality of high aspect container for the metal hydride may be coupled with a manifold.

Metal hydride heat exchanger and method of use

An environment control system utilizes oxygen and humidity control devices that are coupled with an enclosure to independently control the oxygen concentration and the humidity level within the enclosure. An oxygen depletion device may be an oxygen depletion electrolyzer cell that reacts with oxygen within the cell and produces water through electrochemical reactions. A desiccating device may be g, a dehumidification electrolyzer cell, a desiccator, a membrane desiccator or a condenser. A controller may control the amount of voltage and/or current provided to the oxygen depletion electrolyzer cell and therefore the rate of oxygen reduction and may control the amount of voltage and/or current provided to the dehumidification electrolyzer cell and therefore the rate of humidity reduction. The oxygen level may be determined by the measurement of voltage and a limiting current of the oxygen depletion electrolyzer cell. The enclosure may be a food or artifact enclosure.

Electrolysis cell assembly utilizing an anion exchange membrane

Composite polyether block amide (PEBA) copolymer tubes incorporate an ultra-thin PEBA layer that enables rapid moisture transfer and exchange through the tube. A composite PEBA film may include a porous scaffold support and may be formed or incorporated into the composite PEBA tube. A porous scaffold support may be coated or imbibed with PEBA to form a composite PEBA film. A composite PEBA film may be wrapped on a mandrel or over a porous scaffold support to form a composite PEBA tube. A film layer may be applied over a wrapped composite PEBA film to secure the layers together. The film layer by applied by dipping, spraying or painting.

Thin wall polyether block amide membrane tubing and module

A proton exchange polymer comprises a polynorbornene copolymer with hydrophobic and hydrophilic blocks that can be phosphonated to produce phosphonic acid functional groups for proton exchange. Also, the polymer may be crosslinked to form quaternary ammonium groups on the side chains. The polynorbornene copolymer may be acid doped to ionically bond phosphonic acids to the quaternary ammonium groups that may for ion pairs for proton exchange. The proton exchange polymer has high temperature stability with the phosphonic acid functional group and can be mechanically durable with cross linking. Proton exchange membranes may utilize the proton exchange membrane in fuel cell and electrolyzer applications.

Polynorbornene-based ion exchange membranes derived from phosphonated polymer and methods of making same

A composite exchange membrane is made by combining ionomer with porous polyolefin, such as polyethylene or polypropylene. The composite ion exchange membrane may be used in the core of an energy recovery ventilator. The core of the energy recovery ventilator may comprise corrugated or pleated supports for supporting the composite ion exchange membrane. The air flow into the energy recovery ventilator may be modified to actively create non-laminar flow.

Advanced energy recovery ventilator

An anion exchange branched co-polymer includes poly(aryl) and a branched compound and quinuclininuium side chains. The co-polymer may include xanthene or bibenzofuran. The anion exchange branched co-polymer may be more durable and have less creep and may have a higher ion exchange capacity (IEC) due to the structure and because some of the side chains may have multiple functional sites. The co-polymer may be cross-linked and may also include free radical inhibitors. The co-polymer may be incorporated into a support material and used in an anion exchange membrane or membrane electrode assembly.

Anion exchange branched co-polymer with poly(aryl) and a branched compound and quinuclidinium side chains and synthesis thereof

A composite ion conducting tube is made by wrapping a support material or ion conducting sheet to from a tube having overlaps of layers that are bonded. The ion conducting sheet or tape used to make the tube may be very thin and the tube may be formed in situ by wrapping the support material and then coating with ion conducting polymer. The ion conducting tubes may be used in a pervaporation module or desalination system. The ion conducting tubes may be spirally wrapped or longitudinally wrapped and may be very thin having a tube wall thickness of no more than 25 microns.

Composite ionomer membrane tubing modules and system and methods incorporating same

An environmental control system employs an electrolysis cell utilizing an anion conducting membrane. A power supply is coupled across the anode and cathode of the electrolysis cell to drive reactions to reduce oxygen and/or carbon dioxide in an output gas flow. A cathode enclosure may be coupled with the electrolysis cell and provide an input gas flow and receive the output gas flow. A first electrolysis cell may be utilized to reduce the carbon dioxide concentration in an output flow that is directed to a second electrolysis cell, that reduces the concentration of oxygen. The oxygen and/or carbon dioxide may be vented from the system and used for an auxiliary purpose. An electrolyte solution may be configured in a loop from a reservoir to the anode, to provide a flow of electrolyte solution to the anode. Moisture from the cathode may be collected and provided to the anode.

Environmental control system utilizing an anion conducting membrane

Environment control system utilizing an electrochemical cell

An anion exchange ionomer is disclosed that contains a fluorinated, ether-free backbone, and a fluorinated ether based quaternary ammonium functional group. The novel polymer has improved chemical and mechanical stability as compared to the state-of-the-art materials for incorporation in anion exchange membrane. The disclosed anion exchange ionomer may be incorporated into an anion exchange membrane and used in electrochemical applications.

Anion exchange ionomer with a poyarylene backbone and anion exchange membrane incorporating same

A high water transfer electrochemical compressor is described having a 'n' transfer of water through the ion conducting membrane of greater than one. This may be accomplished by reducing the equivalent weight of the ion conducting polymer, such as an ionomer to less than about 900 and/or by reinforcing the low equivalent weight ionomer with a support material, such as an expanded polytetrafluoroethylene. This may be accomplished by making components of the electrochemical cell hydrophilic including the electrodes and/or gas diffusion media. This may be accomplished by adding a flow component to a feed fluid or refrigerant, such as an alcohol, acid, or acetone, for example. A flow component may modify an electrode and/or the ion conducting media, by rendering them hydrophilic. A flow component may swell an ion conducting media enable high transport of the working fluid.

Advanced system for electrochemical cell

An ion exchange membrane has multiple layers of ionic polymers which each contain substantially different chemical compositions. i.e. varying side chain lengths, varying backbone chemistries or varying ionic functionality. Utilizing completely different chemistries has utility in many applications such as fuel cells where for example, one layer can help reduce fuel crossover through the membrane. Or one layer can impart substantial hydrophobicity to the electrode formulation. Or one layer can selectively diffuse a reactant while excluding others. Also, one chemistry may allow for impartation of significant mechanical properties or chemical resistance to another more ionically conductive ionomer. The ion exchange membrane may include at least two layers with substantially different chemical properties.

Multilayered ion exchange membranes

An electrochemical heat transfer device for a hot water tank utilizes an electrochemical hydrogen compressor to pump hydrogen into and out of a tank having a metal hydride forming alloy therein. The absorption of hydrogen by the metal hydride forming alloy is exothermic, produces heat, and the desorption of the hydrogen from the metal hydride forming alloy is endothermic and draws heat in. An electrochemical hydrogen compressor may be configured between to tanks and pump hydrogen back and forth to form a heat transfer device, such as a hot water heater. A heat transfer device may be coupled with the tank or may comprise the outer surface of the tank to transfer heat to an object or to the surroundings. A closed loop may be configured having two tanks and one or two electrochemical hydrogen compressors to pump the hydrogen in a loop around the system.

Advanced metal hydride heat transfer system utilizing an electrochemical hydrogen compressor

Growing community of inventors

Georgetown, DE, United States of America

Bamdad Bahar