公开(公告)号：US20240210356A1

公开(公告)日：2024-06-27

申请号：US18541396

申请日：2023-12-15

Applicant: BATTELLE MEMORIAL INSTITUTE

Inventor： Xiaoqin Zang ,  Zhiqun Deng ,  Wei Wang ,  Litao Yan ,  Zimin Nie

IPC: G01N29/032 ,  G01N29/024 ,  G01N29/24 ,  H01M8/04313 ,  H01M8/18

CPC classification number: G01N29/032 ,  G01N29/024 ,  G01N29/2475 ,  H01M8/04313 ,  H01M8/188 ,  G01N2291/02416

Abstract: This document describes techniques and systems for in operando, non-invasive monitoring of byproducts that commonly arise within redox flow batteries. The described techniques and systems allow for accurate, inexpensive, portable, and real-time methods to measure evolution of gas bubbles and precipitates within the electrolyte solutions of redox flow batteries. System operators can monitor and maintain the amount of byproducts within the electrolyte solution by measuring an acoustic attenuation coefficient of the electrolyte solution and changes in the speed at which ultrasonic echoes propagate through the solution. The acoustic attenuation coefficient is measured using an ultrasonic transducer attached to a probing cell, which is connected to an electrolyte flow of a redox flow battery. The acoustic attenuation coefficient provides an accurate, real-time identification of byproducts that is generally insensitive to varying operational temperatures of the electrolyte solution. The probing cell also allows examination of the sound speed as it detects echoes of the transmitted frequencies.

公开(公告)号：US20240166537A1

公开(公告)日：2024-05-23

申请号：US18505954

申请日：2023-11-09

Applicant: Battelle Memorial Institute

Inventor： Litao Yan ,  Wei Wang ,  Yuyan Shao

IPC: C02F1/461

CPC classification number: C02F1/4618 ,  C02F2001/46142 ,  C02F2101/10

Abstract: In some aspects, the techniques described herein relate to a method of capturing carbon from seawater, the method including: flowing input seawater including bicarbonate and having a pH greater than 8 through a center compartment of an electrolytic cell, wherein the center compartment is disposed between an anode compartment and a cathode compartment of the electrolytic cell; acidifying the input seawater in the center compartment with a proton, to form acidified seawater; generating carbon dioxide in the center compartment including reaction of the proton with the bicarbonate from the input seawater; flowing acidified seawater out of the center compartment; contacting the acidified seawater with hydroxide or a hydroxide salt from the cathode compartment to generate basified seawater having a pH greater than 9; and flowing hydrogen generated in the cathode compartment to the anode compartment.

公开(公告)号：US11043686B2

公开(公告)日：2021-06-22

申请号：US15988192

申请日：2018-05-24

Applicant: BATTELLE MEMORIAL INSTITUTE

Inventor： Wei Wang ,  Dongping Lu ,  Yuyan Shao ,  Qian Huang ,  Litao Yan

IPC: H01M8/18 ,  B01J19/12 ,  H01M8/04858 ,  H01M8/04276 ,  C25B1/04 ,  C25B9/73

Abstract: Described herein are systems and methods of storing and delivering electrical using hydrogen at low-cost and for long-durations. The systems and methods use energy-bearing redox pairs that electrochemically bear energy through decoupled hydrogen and oxygen consumption and/or evolution reactions, which are typically associated with fuel cells. Each species of the energy-bearing redox pair is associated with a standard electrode potential within a water electrolysis voltage window for the electrolyte solution. Electrical energy delivery, hydrogen generation, electrolyte regeneration, or combinations thereof can be performed by logically or physically separated unit operations in a continuous manner, batch manner, or semi-batch manner facilitated by the energy-bearing redox pair.

公开(公告)号：US20250006930A1

公开(公告)日：2025-01-02

申请号：US18505959

申请日：2023-11-09

Applicant: Battelle Memorial Institute

Inventor： Hyung-Seok Lim ,  Litao Yan ,  Zimin Nie ,  Guosheng Li ,  Yongsoon Shin ,  Wei Wang

IPC: H01M4/60 ,  H01M4/04 ,  H01M4/66 ,  H01M8/18

Abstract: A modified electrode includes a conductive substrate and a crosslinked branched polymer disposed on at least a portion of a surface of the conductive substrate. The crosslinked branched polymer comprises a plurality of tertiary amino groups and a plurality of carboxylic acid groups, carbonyl groups, hydroxyl groups, or any combination thereof. The electrode is useful in a battery, such as a redox flow battery.

公开(公告)号：US20250144576A1

公开(公告)日：2025-05-08

申请号：US18934959

申请日：2024-11-01

Applicant: Battelle Memorial Institute

Inventor： Yuyan Shao ,  Litao Yan ,  Bingbin Wu

IPC: B01D71/36 ,  B01J49/20 ,  H01M50/426

Abstract: Disclosed herein is a method for dissolving ion exchange membranes to provide dissolved polymers, particularly at low temperatures and/or pressures, that can be recast to regenerate ion exchange membranes exhibiting reduced defects compared to the initial ion exchange membrane. In some aspects of the disclosure, the polymer exchange membranes include a perfluorosulfonic acid polymer. In some aspects of the disclosure, the method involves dissolving the membranes in one or more aprotic solvents, particularly at temperatures below 80° C.

公开(公告)号：US11415552B2

公开(公告)日：2022-08-16

申请号：US16893953

申请日：2020-06-05

Applicant: Battelle Memorial Institute

Inventor： Zhiqun Deng ,  Wei Wang ,  Xiaoqin Zang ,  Litao Yan ,  Yang Yang ,  Huilin Pan ,  Zimin Nie ,  Jun Lu

IPC: G01N29/032 ,  G01N29/30 ,  H01M8/04537 ,  H01M8/18 ,  G01N29/34

Abstract: This document describes techniques and systems for in operando, non-invasive SOC monitoring of redox flow batteries. The described techniques and systems allow for accurate, inexpensive, portable, and real-time methods to measure the SOC of redox flow batteries. System operators can monitor the SOC by measuring an acoustic attenuation coefficient of the electrolyte in the redox flow battery. The acoustic attenuation coefficient is measured using an ultrasonic transducer attached to a probing cell, which is connected to an electrolyte flow of a redox flow battery. The acoustic attenuation coefficient provides an accurate, real-time SOC measurement that is generally insensitive to varying operational temperatures of the electrolyte solution.

公开(公告)号：US20180269515A1

公开(公告)日：2018-09-20

申请号：US15988192

申请日：2018-05-24

Applicant: BATTELLE MEMORIAL INSTITUTE

Inventor： Wei Wang ,  Dongping Lu ,  Yuyan Shao ,  Qian Huang ,  Litao Yan

IPC: H01M8/18 ,  C25B1/10 ,  H01M8/04858 ,  B01J19/12

CPC classification number: H01M8/188 ,  B01J19/122 ,  B01J2219/0877 ,  C25B1/10 ,  H01M8/04276 ,  H01M8/04925 ,  H01M8/18 ,  H01M8/186 ,  H01M2250/10 ,  Y02B90/14 ,  Y02E60/366 ,  Y02E60/528

Abstract: Described herein are systems and methods of storing and delivering electrical using hydrogen at low-cost and for long-durations. The systems and methods use energy-bearing redox pairs that electrochemically bear energy through decoupled hydrogen and oxygen consumption and/or evolution reactions, which are typically associated with fuel cells. Each species of the energy-bearing redox pair is associated with a standard electrode potential within a water electrolysis voltage window for the electrolyte solution. Electrical energy delivery, hydrogen generation, electrolyte regeneration, or combinations thereof can be performed by logically or physically separated unit operations in a continuous manner, batch manner, or semi-batch manner facilitated by the energy-bearing redox pair.