System and method for sensing and mitigating hydrogen evolution within a flow battery system
    4.
    发明授权
    System and method for sensing and mitigating hydrogen evolution within a flow battery system 有权
    用于感测和减轻流动电池系统内氢析出的系统和方法

    公开(公告)号:US09356303B2

    公开(公告)日:2016-05-31

    申请号:US14161219

    申请日:2014-01-22

    摘要: A method is provided for mitigating hydrogen evolution within a flow battery system that includes a plurality of flow battery cells, a power converter and an electrochemical cell. The method includes providing hydrogen generated by the hydrogen evolution within the flow battery system to the electrochemical cell. A first electrical current generated by an electrochemical reaction between the hydrogen and a reactant is sensed, and the sensed current is used to control an exchange of electrical power between the flow battery cells and the power converter.

    摘要翻译: 提供了一种用于减轻包括多个流动电池单元,功率转换器和电化学电池的流动电池系统内的氢析出的方法。 该方法包括将由流动电池系统内的析氢生成的氢提供给电化学电池。 检测由氢和反应物之间的电化学反应产生的第一电流,并且使用所感测的电流来控制流动电池单元和功率转换器之间的电力交换。

    FLOW BATTERY WITH HYDRATED ION-EXCHANGE MEMBRANE HAVING MAXIMUM WATER DOMAIN CLUSTER SIZES
    5.
    发明申请
    FLOW BATTERY WITH HYDRATED ION-EXCHANGE MEMBRANE HAVING MAXIMUM WATER DOMAIN CLUSTER SIZES 审中-公开
    具有最大水域聚集尺寸的水合离子膜的流动电池

    公开(公告)号:US20160126579A1

    公开(公告)日:2016-05-05

    申请号:US14891013

    申请日:2013-05-16

    IPC分类号: H01M8/10 H01M8/18 H01M8/20

    摘要: A flow battery includes a cell that has a first electrode, a second electrode spaced apart from the first electrode and an electrolyte separator layer arranged between the first electrode and the second electrode. A supply/storage system is external of the at least one cell and includes first and second vessels that are fluidly connected with the at least one cell. First and second fluid electrolytes are located in the supply/storage system. The electrolyte separator layer includes a hydrated ion-exchange membrane of a polymer that has a carbon backbone chain and side chains extending from the carbon backbone chain. The side chains include hydrophilic chemical groups with water molecules attached by secondary bonding to form clusters of water domains. The clusters have an average maximum cluster size no greater than 4 nanometers, with an average number of water molecules per hydrophilic chemical group, λ (lambda), being greater than zero.

    摘要翻译: 流动电池包括具有第一电极,与第一电极间隔开的第二电极和布置在第一电极和第二电极之间的电解质层的电池。 供应/存储系统在至少一个单元的外部,并且包括与至少一个单元流体连接的第一和第二容器。 第一和第二流体电解质位于供应/储存系统中。 电解质隔离层包括聚合物的水合离子交换膜,其具有碳主链和从碳骨架链延伸的侧链。 侧链包括具有通过二次键合连接的水分子的亲水化学基团以形成水域簇。 这些簇具有不大于4纳米的平均最大簇尺寸,每个亲水化学基团的平均数量的水分子λ(λ)大于零。

    REACTIVATION OF FLOW BATTERY ELECTRODE BY EXPOSURE TO OXIDIZING SOLUTION
    6.
    发明申请
    REACTIVATION OF FLOW BATTERY ELECTRODE BY EXPOSURE TO OXIDIZING SOLUTION 审中-公开
    流动电池电极通过暴露于氧化溶液中的反应

    公开(公告)号:US20160013505A1

    公开(公告)日:2016-01-14

    申请号:US14770969

    申请日:2013-03-15

    IPC分类号: H01M8/18 H01M8/20

    CPC分类号: H01M8/188 H01M8/20 Y02E60/528

    摘要: A flow battery includes at least a cell that has a first electrode, a second electrode and an electrolyte separator layer arranged between the electrodes. A supply/storage system is external of the cell and includes a first vessel fluidly connected in a first loop with the first electrode and a second vessel fluidly connected in a second loop with the second electrode. The first loop and the second loop are isolated from each other. The supply/storage system is configured to fluidly connect the first loop and the second loop to move a second liquid electrolyte from the second vessel into a first liquid electrolyte in the first vessel responsive to a half-cell potential at the first electrode being less than a defined threshold half-cell potential.

    摘要翻译: 流动电池至少包括具有布置在电极之间的第一电极,第二电极和电解质隔离层的电池。 供应/存储系统在电池的外部,并且包括与第一电极以第一回路流体连接的第一容器和与第二电极以第二回路流体连接的第二容器。 第一环和第二环彼此隔离。 供应/存储系统被配置为使第一回路和第二回路流体连接,以将第二液体电解质从第二容器移动到第一容器中的第一液体电解质中,以响应于第一电极处的半电池电位小于 定义的阈值半细胞电位。

    METHOD AND SYSTEM FOR OPERATING A FLOW BATTERY SYSTEM BASED ON ENERGY COSTS
    7.
    发明申请
    METHOD AND SYSTEM FOR OPERATING A FLOW BATTERY SYSTEM BASED ON ENERGY COSTS 审中-公开
    基于能源成本运行流量电池系统的方法和系统

    公开(公告)号:US20150024296A1

    公开(公告)日:2015-01-22

    申请号:US14509685

    申请日:2014-10-08

    IPC分类号: H01M8/18 H01M8/20

    摘要: A method and system for storing and/or discharging electrical energy that has a cost, which method includes steps of: (a) providing a flow battery system comprising at least one flow battery cell and a controller; (b) operating the flow battery cell at a power density having a first value; and (c) changing the power density at which the flow battery cell is operated from the first value to a second value as a function of the cost of the electrical energy, wherein the power density is changed using the controller, and wherein the second value is different than the first value.

    摘要翻译: 一种用于存储和/或排出具有成本的电能的方法和系统,该方法包括以下步骤:(a)提供包括至少一个流动电池单元和控制器的流动电池系统; (b)以具有第一值的功率密度操作所述流动电池单元; 以及(c)将所述流动电池单元的功率密度从所述第一值改变为第二值作为所述电能的成本的函数,其中使用所述控制器改变所述功率密度,并且其中所述第二值 与第一个值不同。

    FLOW BATTERY WITH ENHANCED DURABILITY
    8.
    发明申请
    FLOW BATTERY WITH ENHANCED DURABILITY 审中-公开
    流动电池具有增强的耐久性

    公开(公告)号:US20140315113A1

    公开(公告)日:2014-10-23

    申请号:US14364717

    申请日:2011-12-20

    IPC分类号: H01M8/18 H01M8/20

    摘要: A flow battery includes at least one electrochemical cell that has a first electrode, a second electrode spaced apart from the first electrode and a separator arranged between the first electrode and the second electrode. A first storage portion and a second storage portion are respectively fluidly connected with the at least one electrochemical cell. A first liquid electrolyte and a second liquid electrolyte are located in the respective first storage portion and second storage portion. The first electrode has an area over which it is catalytically active with regard to the first liquid electrolyte and the second electrode has an area over which it is catalytically active with regard to the second liquid electrolyte such that the area of the first electrode is greater than the area of the second electrode.

    摘要翻译: 流动电池包括至少一个电化学电池,其具有第一电极,与第一电极间隔开的第二电极和布置在第一电极和第二电极之间的隔板。 第一存储部分和第二存储部分分别与至少一个电化学电池流体连接。 第一液体电解质和第二液体电解质位于相应的第一存储部分和第二存储部分中。 第一电极具有相对于第一液体电解质具有催化活性的区域,并且第二电极具有关于第二液体电解质对其具有催化活性的区域,使得第一电极的面积大于 第二电极的面积。

    MULTIPLE TRANSITION FLOW FIELD AND METHOD
    9.
    发明申请
    MULTIPLE TRANSITION FLOW FIELD AND METHOD 有权
    多个过渡流场和方法

    公开(公告)号:US20140212787A1

    公开(公告)日:2014-07-31

    申请号:US14227888

    申请日:2014-03-27

    发明人: Michael L. Perry

    IPC分类号: H01M8/04 H01M8/10

    摘要: A fuel cell includes a membrane electrode assembly having an anode side and a cathode side, a first gas diffusion layer adjacent the cathode side of the membrane electrode assembly, and a first flow field plate contacting the first gas diffusion layer. The first flow field plate includes a reactant inlet, a reactant outlet, and a plurality of flow field chambers separated from one another by at least one rib. The reactant inlet is separated from the plurality of flow field chambers by at least one rib and the reactant outlet is separated from the plurality of flow field chambers by at least one rib. The ribs are configured to force a reactant flowing from the reactant inlet to the reactant outlet to enter the first gas diffusion layer at least twice.

    摘要翻译: 燃料电池包括具有阳极侧和阴极侧的膜电极组件,与膜电极组件的阴极侧相邻的第一气体扩散层和与第一气体扩散层接触的第一流场板。 第一流场板包括反应物入口,反应物出口和通过至少一个肋彼此分离的多个流场室。 反应物入口通过至少一个肋与多个流场室分离,并且反应物出口通过至少一个肋与多个流场室分离。 这些肋构造成迫使反应物从反应物入口流到反应物出口,进入第一气体扩散层至少两次。

    Redox flow battery system with electrochemical recovery cell

    公开(公告)号:US11362359B2

    公开(公告)日:2022-06-14

    申请号:US16418120

    申请日:2019-05-21

    IPC分类号: H01M8/18 H01M8/0662

    摘要: A redox flow battery system includes a redox flow battery that has a redox flow cell, and a supply/storage system external of the redox flow cell. The supply/storage system includes first and second electrolytes for circulation through the redox flow cell. At least the first electrolyte is an aqueous liquid electrolyte that has electrochemically active species with multiple, reversible oxidation states. There is a gas vent passage connected with the redox flow battery to receive water byproduct that evolves from side reaction of the first electrolyte. A bypass passage is connected with the supply/storage system to receive the aqueous electrolyte. An electrochemical recovery cell includes a first half-cell connected to the gas vent passage to receive as a reactant the water byproduct and a second half-cell connected to the bypass passage to receive as a reactant the first electrolyte.