公开(公告)号：US12163697B2

公开(公告)日：2024-12-10

申请号：US17473595

申请日：2021-09-13

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  William Parmelee

IPC: F25B1/00 ,  C09K5/04

Abstract: 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.

公开(公告)号：US11969722B2

公开(公告)日：2024-04-30

申请号：US16913767

申请日：2020-06-26

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Taoli Gu

IPC: B01D53/22 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/72 ,  B01J23/42 ,  B01J41/09 ,  B01J41/10 ,  B01J41/13

CPC classification number: B01J41/13 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/72 ,  B01J23/42 ,  B01J41/09 ,  B01J41/10 ,  B01D2325/02 ,  B01D2325/10 ,  B01D2325/42

Abstract: An ultra-thin anion exchange membrane incorporates functional additives to provide improved water management. Without the functional additives the ultra-thin membrane may have high cross-over and not be effective for many applications. A composite anion exchange membrane includes a porous scaffold support such as a porous polymer. The anion exchange polymer may be coupled to the porous scaffold, such as by being imbibed into the pores of the porous scaffold. The functional additives may contribute to increase water production, water retention, back-diffusion and reduce the gas crossover. A functional additive may include a reactive species, including a catalyst that reacts with oxygen or hydrogen, a plasticizer, a hygroscopic material and/or a radical scavenger.

公开(公告)号：US11717788B2

公开(公告)日：2023-08-08

申请号：US16560959

申请日：2019-09-04

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Kryiacos Zachary ,  Jacob Zerby

IPC: B01D53/30 ,  B01D53/26 ,  B01D46/00 ,  B01D53/04 ,  F24F3/14 ,  B01D53/32 ,  C25B15/02 ,  C25B9/23 ,  C25B1/04

CPC classification number: B01D53/30 ,  B01D46/0036 ,  B01D53/0446 ,  B01D53/268 ,  B01D53/326 ,  C25B1/04 ,  C25B9/23 ,  C25B15/02 ,  F24F3/14 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/112 ,  B01D2253/1122 ,  B01D2253/1124 ,  B01D2257/708 ,  B01D2259/4508 ,  B01D2279/50

Abstract: 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.

公开(公告)号：US11566853B2

公开(公告)日：2023-01-31

申请号：US16231310

申请日：2018-12-21

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Peter Mark Golben ,  William Parmelee

IPC: F28D20/00 ,  F28F13/00 ,  F28D21/00 ,  F25B17/12 ,  F17C11/00

Abstract: 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.

公开(公告)号：US11504494B2

公开(公告)日：2022-11-22

申请号：US16291932

申请日：2019-03-04

Applicant: Xergy Inc

Inventor： Bamdad Bahar ,  Jacob Zerby

IPC: A61M16/10 ,  C25B1/04 ,  A61L2/03 ,  C25B15/02 ,  C25B9/23 ,  C25B9/73 ,  C25B11/02 ,  F24F11/00 ,  A61L9/015 ,  C25B13/00 ,  C25B9/30

Abstract: 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.

公开(公告)号：US11213785B2

公开(公告)日：2022-01-04

申请号：US16254391

申请日：2019-01-22

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Jacob Zerby

IPC: B01D53/32 ,  C25B13/08 ,  B01D69/12 ,  B01D71/28 ,  B01D71/80 ,  B01D71/72 ,  F25B9/00 ,  C25B9/23 ,  C25B11/081 ,  H02K9/10 ,  C08G61/10 ,  B01D67/00 ,  B01D69/02 ,  C08G61/02

Abstract: An electrochemical system 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.

公开(公告)号：US11173456B2

公开(公告)日：2021-11-16

申请号：US15448734

申请日：2017-03-03

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Chulsung Bae

IPC: H01M4/88 ,  B01D71/80 ,  B01D67/00 ,  B01J41/04 ,  B01J41/05 ,  B01J41/13 ,  B01D61/44 ,  B01D71/26 ,  B01J47/12 ,  C08G61/02 ,  C25B1/04 ,  C25B13/02 ,  C25B13/08 ,  H01M4/94 ,  H01M8/1004 ,  B01D69/10 ,  C08J5/22 ,  H01M8/1048 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1069 ,  C08G10/00

Abstract: An anion exchange membrane is made by mixing 2 trifluoroMethyl Ketone [nominal] (1.12 g, 4.53 mmol), 1 Biphenyl (0.70 g, 4.53 mmol), methylene chloride (3.0 mL), trifluoromethanesulfonic acid (TFSA) (3.0 mL) to produce a pre-polymer. The pre-polymer is then functionalized to produce an anion exchange polymer. The pre-polymer may be functionalized with trimethylamine in solution with water. The pre-polymer may be imbibed into a porous scaffold material, such as expanded polytetrafluoroethylene to produce a composite anion exchange membrane.

公开(公告)号：US20210347956A1

公开(公告)日：2021-11-11

申请号：US17366689

申请日：2021-07-02

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  Taoli Gu ,  Sai Nitin Yellamilli

IPC: C08J5/22

Abstract: 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.

公开(公告)号：US11149970B2

公开(公告)日：2021-10-19

申请号：US15798123

申请日：2017-10-30

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  William Parmelee ,  Omar Abdelaziz ,  Qu Ming

IPC: F24F3/14 ,  C07D233/58 ,  C08L27/12 ,  B01D1/14 ,  B01D5/00 ,  F25B17/02 ,  B01D53/26 ,  F24F3/00

Abstract: A cooling systems utilizes an organic ionic salt composition for dehumidification of an airflow. The organic ionic salt composition absorbs moisture from an inlet airflow to produce an outlet airflow with a reduce moisture from that of the inlet airflow. The organic ionic salt composition may be regenerated, wherein the absorbed moisture is expelled by heating with a heating device. The heating device may be an electrochemical heating device, such as a fuel cell, an electrochemical metal hydride heating device, an electrochemical heat pump or compressor, or a condenser of a refrigerant cycle, which may utilize an electrochemical pump or compressor. The efficiency of the cooling system may be increased by utilization of the waste heat the cooling system. The organic ionic salt composition may circulate back and forth or in a loop between a conditioner, where it absorbs moisture, to a regenerator, where moisture is desorbed by heating.

公开(公告)号：US11103864B2

公开(公告)日：2021-08-31

申请号：US16560876

申请日：2019-09-04

Applicant: Xergy Inc.

Inventor： Bamdad Bahar ,  John Paul Saltwick

IPC: B01J47/12 ,  C08J5/22

Abstract: 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.