公开(公告)号：US20230207928A1

公开(公告)日：2023-06-29

申请号：US17926701

申请日：2021-05-21

Applicant: JTEC ENERGY, INC.

Inventor： David Ketema JOHNSON

IPC: H01M14/00

CPC classification number: H01M14/00

Abstract: A method of generating electrical energy using an electrochemical direct heat to electricity converter operating on the Rankine cycle is provided. The converter includes a working fluid, a high temperature electrochemical cell including a first membrane electrode assembly, a low temperature electrochemical cell including a second membrane electrode assembly, an evaporator coupled to the first electrochemical cell, a condenser coupled to the second electrochemical cell, and an external load. The method involves introducing the working fluid at the first membrane electrode assembly as a liquid, expanding the working fluid through the first membrane electrode assembly and evaporating it into a vapor, and cooling and condensing the vapor back into a liquid at the second membrane electrode assembly.

公开(公告)号：US20230056025A1

公开(公告)日：2023-02-23

申请号：US17797572

申请日：2021-02-12

Applicant: JTEC Energy, Inc.

Inventor： Lonnie G. JOHNSON ,  David Ketema JOHNSON ,  Andrew Ashford KNIGHT ,  Tedric D. CAMPBELL

IPC: H01M8/04007 ,  H01M8/1004 ,  H01M8/04089

Abstract: A thermo-electrochemical converter is provided. The converter includes a working fluid, coupled first and second membrane electrode assemblies (MEA), first and second heat transfer members, a heat sink and a heat source. Each MEA includes a first porous electrode operating at a first pressure, a second porous electrode operating at a second pressure which is higher than the first pressure, and an ion conductive membrane sandwiched therebetween. The first MEA compresses the working fluid and the second MEA expands the working fluid. The first heat transfer member is coupled to and thermally interfaces with a low-pressure electrode of the first MEA. The second heat transfer member is coupled to and thermally interfaces with a lowpressure electrode of the second MEA. The heat sink is coupled to the low-pressure side of the first MEA and the heat source is coupled to the low-pressure side of the second MEA.