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公开(公告)号：US20230246217A1
公开(公告)日：2023-08-03
申请号：US18162590
申请日：2023-01-31
Applicant: ESS TECH, INC.
Inventor： Neal Walters Kuperman , Yang Song
CPC classification number: H01M8/188 , H01M4/8631 , H01M2004/8694
Abstract: Systems and methods are provided for a redox flow battery. In one example, a method for the redox flow battery includes operating the redox flow battery in a short-term idle mode by discharging the redox flow battery at a constant current density over a duration of the short-term idle mode. By discharging the current density, a plated surface at a negative electrode of the redox flow battery may be maintained.
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12.发明公开公开(公告)号：US20230216072A1
公开(公告)日：2023-07-06
申请号：US18182892
申请日：2023-03-13
Applicant: ESS TECH, INC.
Inventor： Yang Song , Timothy J. McDonald , Thiago Groberg
IPC: H01M8/04537 , H01M8/18 , H01M8/04858 , H01M8/04955
CPC classification number: H01M8/04611 , H01M8/188 , H01M8/04932 , H01M8/04955 , H01M8/04582
Abstract: Systems and methods for operating an electric energy storage device are described. The systems and methods may generate a state of charge estimate that is based on negative electrode plating. An overall state of charge may be determined from the state of charge estimate that is based on negative electrode plating and a state of charge estimate that is not based on negative electrode plating.
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公开(公告)号：US11631872B2
公开(公告)日：2023-04-18
申请号：US17099191
申请日：2020-11-16
Applicant: ESS TECH, INC.
Inventor： Yang Song , Timothy J. McDonald , Thiago Groberg
IPC: H01M8/04 , H01M8/04537 , H01M8/18 , H01M8/04858 , H01M8/04955
Abstract: Systems and methods for operating an electric energy storage device are described. The systems and methods may generate a state of charge estimate that is based on negative electrode plating. An overall state of charge may be determined from the state of charge estimate that is based on negative electrode plating and a state of charge estimate that is not based on negative electrode plating.
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公开(公告)号：US20230088434A1
公开(公告)日：2023-03-23
申请号：US17929627
申请日：2022-09-02
Applicant: ESS TECH, INC.
Inventor： Yang Song , Craig Evans
Abstract: A hybrid redox fuel cell system includes a hybrid redox fuel cell and an electrochemical cell. The hybrid redox fuel cell includes an anode side through which hydrogen is flowed and a cathode side through which liquid electrolyte is flowed, the liquid electrolyte including a metal ion at a higher oxidation state and the metal ion at a lower oxidation state. An anode side of the electrochemical cell is fluidly connected to the cathode side of the hybrid redox fuel cell. At the hybrid redox fuel cell, power is generated by reducing the metal ion at the higher oxidation state to the lower oxidation state at the cathode side while oxidizing the reductant at the anode side. At the anode side of the electrochemical cell, the metal ion at the lower oxidation state is oxidized to the higher oxidation state while the power is generated.
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公开(公告)号：US20230062928A1
公开(公告)日：2023-03-02
申请号：US18045021
申请日：2022-10-07
Applicant: ESS TECH, INC.
Inventor： Sean Casey , Craig Evans , Thiago Groberg , Yang Song
IPC: H01M8/18 , H01M8/0438
Abstract: A redox flow battery and battery system are provided. In one example, the redox flow battery includes a set of pressure plates having a first pressure plate at a first terminal end and a second pressure plate at a second terminal end, the second terminal end and the first terminal end positioned on opposing longitudinal sides of the redox flow battery. The redox flow battery further includes a first cell stack positioned longitudinally between the first pressure plate and the second pressure plate, each of the first and second pressure plates includes a plurality stacking detents on a first flange and a plurality of stacking protrusions on a second flange, and the first flange and the second flange arranged on opposing vertical sides of the redox flow battery.
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Patent Agency Ranking
公开(公告)号：US11515558B2
公开(公告)日：2022-11-29
申请号：US16536213
申请日：2019-08-08
Applicant: ESS TECH, INC.
Inventor： Yang Song
Abstract: Methods and systems are provided for a redox flow battery system. In one example, the redox flow battery is adapted with an additive included in a battery electrolyte and an anion exchange membrane separator dividing positive electrolyte from negative electrolyte. An overall system cost of the battery system may be reduced while a storage capacity, energy density and performance may be increased.
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公开(公告)号：US11462764B2
公开(公告)日：2022-10-04
申请号：US17209084
申请日：2021-03-22
Applicant: ESS Tech, Inc.
Inventor： Sean Casey , Craig Evans
Abstract: Methods and systems are provided for a redox flow battery system. In one example, the redox flow battery system has a set of pressure plates with a sub-stack separator plate arranged between the first pressure plate and the second pressure plate and a first cell stack positioned between the first pressure plate and the sub-stack separator plate. The redox flow battery system may further include a second cell stack positioned between the second pressure plate and the sub-stack separator plate.
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公开(公告)号：US20220285717A1
公开(公告)日：2022-09-08
申请号：US17664562
申请日：2022-05-23
Applicant: ESS Tech, Inc.
Inventor： Yang Song , Craig E. Evans
Abstract: Methods and systems are provided for a redox flow battery system. In one example, the redox flow battery is adapted with an additive included in a battery electrolyte and an anion exchange membrane separator dividing positive electrolyte from negative electrolyte. An overall system cost of the battery system may be reduced while a storage capacity, energy density and performance may be increased.
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公开(公告)号：US11424470B2
公开(公告)日：2022-08-23
申请号：US16536237
申请日：2019-08-08
Applicant: ESS TECH, INC.
Inventor： Yang Song , Craig E. Evans
Abstract: Methods and systems are provided for a redox flow battery system. In one example, the redox flow battery is adapted with an additive included in a battery electrolyte and an anion exchange membrane separator dividing positive electrolyte from negative electrolyte. An overall system cost of the battery system may be reduced while a storage capacity, energy density and performance may be increased.
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公开(公告)号：US11201343B2
公开(公告)日：2021-12-14
申请号：US16684429
申请日：2019-11-14
Applicant: ESS TECH, INC.
Inventor： Yang Song , Timothy J. McDonald , Alexandria Behr
IPC: H01M8/06 , H01M8/18 , H01M8/0444 , H01M8/04746 , H01M8/04186
Abstract: Methods and systems are provided for a rebalancing reactor of a flow battery system. In one example, a pH of a battery electrolyte may be maintained by the rebalancing reactor by applying a negative potential to a catalyst bed of the rebalancing reactor. A performance of the rebalancing reactor may further be maintained by treating the catalyst bed with deionized water.
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