公开(公告)号：US11626608B2

公开(公告)日：2023-04-11

申请号：US17523772

申请日：2021-11-10

Applicant: COUGAR CREEK TECHNOLOGIES, LLC

Inventor： Kui Wei ,  Liyu Li

IPC: H01M8/18 ,  H01M4/36 ,  H01M8/04298 ,  H01M10/36 ,  H01M10/42 ,  H01M8/0444 ,  H01M4/38 ,  H01M8/04082 ,  H01M8/04276 ,  H01M8/04537 ,  G01R31/392 ,  C01G31/00 ,  C22B3/44 ,  H01M4/66

Abstract: A redox flow battery system includes an anolyte having a first ionic species in solution; a catholyte having a second ionic species in solution, where the redox flow battery system is configured to reduce the first ionic species in the anolyte and oxidize the second ionic species in the catholyte during charging; a first electrode in contact with the anolyte, where the first electrode includes channels for collection of particles of reduced metallic impurities in the anolyte; a second electrode in contact with the catholyte; and a separator separating the anolyte from the catholyte. A method of reducing metallic impurities in an anolyte of a redox flow battery system includes reducing the metallic impurities in the anolyte; collecting particles of the reduced metallic impurities; and removing the collected particles using a cleaning solution.

公开(公告)号：US20230231171A1

公开(公告)日：2023-07-20

申请号：US18119218

申请日：2023-03-08

Applicant: Cougar Creek Technologies, LLC

Inventor： Kui Wei ,  Liyu Li

IPC: H01M8/18 ,  H01M8/0444 ,  H01M4/66 ,  H01M8/04537 ,  H01M8/04298 ,  H01M10/36 ,  H01M10/42 ,  H01M4/38 ,  C22B3/44 ,  H01M8/04276 ,  H01M4/36 ,  G01R31/392 ,  C01G31/00 ,  H01M8/04082

CPC classification number: H01M8/188 ,  H01M8/04455 ,  H01M4/661 ,  H01M8/04544 ,  H01M8/04298 ,  H01M10/36 ,  H01M10/42 ,  H01M4/38 ,  H01M8/04477 ,  C22B3/44 ,  H01M8/04276 ,  H01M4/368 ,  G01R31/392 ,  C01G31/00 ,  H01M8/04447 ,  H01M8/04201 ,  H01M2300/0005

Abstract: A method for determining an average oxidation state (AOS) of a redox flow battery system includes measuring a charge capacity for a low potential charging period starting from a discharged state of the redox flow battery system to a turning point of a charge voltage; and determining the AOS using the measured charge capacity and volumes of anolyte and catholyte of the redox flow battery system. Other methods can be used to determine the AOS for a redox flow battery system or use discharge voltage instead of charging voltage.

公开(公告)号：US11626607B2

公开(公告)日：2023-04-11

申请号：US16824144

申请日：2020-03-19

Applicant: COUGAR CREEK TECHNOLOGIES, LLC

Inventor： Kui Wei ,  Liyu Li

IPC: H01M8/18 ,  H01M8/0444 ,  H01M4/36 ,  H01M4/38 ,  H01M8/04082 ,  H01M8/04276 ,  H01M8/04537 ,  G01R31/392 ,  C01G31/00 ,  C22B3/44 ,  H01M4/66 ,  H01M8/04298 ,  H01M10/36 ,  H01M10/42

Abstract: A method for determining an average oxidation state (AOS) of a redox flow battery system includes measuring a charge capacity for a low potential charging period starting from a discharged state of the redox flow battery system to a turning point of a charge voltage; and determining the AOS using the measured charge capacity and volumes of anolyte and catholyte of the redox flow battery system. Other methods can be used to determine the AOS for a redox flow battery system or use discharge voltage instead of charging voltage.