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公开(公告)号：US11591294B2
公开(公告)日：2023-02-28
申请号：US17097715
申请日：2020-11-13
发明人： Wei Wang , Ruozhu Feng , Xin Zhang , Aaron M. Hollas , Vijay Murugesan , Nadeesha P. Nambukara Wellala , Yuyan Shao , Zimin Nie
IPC分类号： H01M8/18 , H01M8/083 , C07C309/38 , C07D241/38
摘要： Aqueous electrolytes comprising fluorenone/fluorenol derivatives are disclosed. The electrolyte may be an anolyte for an aqueous redox flow battery. In some embodiments, the compound, or salt thereof, has a structure according to any one of formulas I-III where Q1-Q4 independently are CH, C(R1) or N, wherein 0, 1, or 2 of Q1-Q4 are N; Q5-Q8 independently are CH, C(R2), or N, wherein 0, 1, or 2 of Q5-Q8 are N; Y is C═O or C(H)OH; R1 and R2 independently are an electron withdrawing group; n is an integer >1; and x and y independently are 0, 1, 2, 3, or 4, where at least one of x and y is not 0.
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公开(公告)号：US09793566B2
公开(公告)日：2017-10-17
申请号：US14690224
申请日：2015-04-17
发明人： Tianbiao Liu , Bin Li , Xiaoliang Wei , Zimin Nie , Wei Wang , Jun Liu , Vincent L. Sprenkle
CPC分类号： H01M8/188 , H01M8/20 , H01M2300/0002 , Y02E60/528
摘要： An aqueous redox flow battery system includes an aqueous catholyte and an aqueous anolyte. The aqueous catholyte may comprise (i) an optionally substituted thiourea or a nitroxyl radical compound and (ii) a catholyte aqueous supporting solution. The aqueous anolyte may comprise (i) metal cations or a viologen compound and (ii) an anolyte aqueous supporting solution. The catholyte aqueous supporting solution and the anolyte aqueous supporting solution independently may comprise (i) a proton source, (ii) a halide source, or (iii) a proton source and a halide source.
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公开(公告)号：US20170288243A1
公开(公告)日：2017-10-05
申请号：US15473401
申请日：2017-03-29
发明人： Edwin C. Thomsen , David M. Reed , Brian J. Koeppel , Kurtis P. Recknagle , Vilayanur V. Viswanathan , Alasdair J. Crawford , Zimin Nie , Wei Wang , Vincent L. Sprenkle , Bin Li
IPC分类号： H01M8/04276 , H01M8/20 , H01M8/0273 , H01M8/18
CPC分类号： H01M8/04276 , H01M8/0213 , H01M8/0226 , H01M8/0258 , H01M8/0273 , H01M8/188 , H01M8/2483 , Y02E60/528
摘要： A redox flow battery stack cell frame comprising a support frame and a monolithic bipolar plate integrated within the support frame is disclosed. The bipolar plate comprises a plurality of interdigitated flow channels on at least one surface. The support frame comprises an inlet manifold formed into a facing surface of the first side of the frame, the inlet manifold comprising fluid inlet distribution channels in a serpentine arrangement, each fluid inlet distribution channel aligned with a single inlet flow channel of the bipolar plate; and an outlet manifold formed into the facing surface of the opposing side of the frame, the outlet manifold comprising fluid outlet distribution channels in a serpentine arrangement, each fluid outlet distribution channel aligned with a single outlet flow channel of the bipolar plate. Redox flow battery stack cells and stacks comprising the stack cell frame are also disclosed.
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4.发明申请High-Energy-Density, Nonaqueous, Redox Flow Batteries Having Iodine-based Species 审中-公开高能密度，非水，氧化还原电池具有碘基物种公开(公告)号：US20150349369A1
公开(公告)日：2015-12-03
申请号：US14294391
申请日：2014-06-03
发明人： Bin Li , Xiaoliang Wei , Zimin Nie , Wei Wang , Jun Liu , Vincent L. Sprenkle
CPC分类号： H01M8/188 , H01M8/04186 , H01M8/1009 , H01M8/20 , H01M8/225 , H01M2300/0017 , H01M2300/0034 , H01M2300/0037 , Y02E60/528
摘要： Nonaqueous redox flow batteries (RFBs) can utilize a metal and a cation of the metal (Mn+) as an active redox couple for a first electrode and electrolyte, respectively, in a first half-cell. The RFBs can also utilize a second electrolyte having I-based species. The I-based species can be selected from the group consisting of I− anions, I2, anions of Ix (x≧3), or combinations thereof. Two different ones of the I-based species compose a second redox active couple in the second half cell.
摘要翻译： 非水氧化还原液流电池（RFB）可以在第一个半电池中分别利用金属（Mn +）的金属和阳离子作为第一电极和电解质的活性氧化还原对。 RFB还可以利用具有基于I的物质的第二电解质。 基于I的物质可以选自I-阴离子，I2，Ix（x≥3）的阴离子或其组合。 两种不同的基于I的物种在第二个半电池中组成第二个氧化还原活性偶。
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公开(公告)号：US11532832B2
公开(公告)日：2022-12-20
申请号：US16859142
申请日：2020-04-27
发明人： Zimin Nie , Wei Wang , Xiaoliang Wei , Bin Li , Jun Liu , Vincent L. Sprenkle
摘要： All-vanadium sulfate redox flow battery systems have a catholyte and an anolyte comprising an aqueous supporting solution including chloride ions and phosphate ions. The aqueous supporting solution stabilizes and increases the solubility of vanadium species in the electrolyte, allowing an increased vanadium concentration over a desired operating temperature range. According to one example, the chloride ions are provided by MgCl2, and the phosphate ions are provided by (NH4)2HPO4.
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公开(公告)号：US11050076B1
公开(公告)日：2021-06-29
申请号：US15004717
申请日：2016-01-22
发明人： Wei Wang , Zimin Nie , Vincent Sprenkle , Jamelyn D. Holladay
摘要： Flow cell systems are provided. Example flow cell systems can include an H+/H2 half-cell and a counterpart Fe3+/Fe2+ or V5+/V4+ half-cell. Flow cell systems can also include a half-cell in fluid communication with an electrolyte regeneration chamber. Embodiments of these flow cells systems can be configured to produce hydrogen through electrolysis. Flow cell battery systems are also disclosed. Example flow cell battery systems can include an H+/H2 analyte; and a counterpart Fe3+/Fe2+ or V5+/V4+ catholyte. Processes for generating hydrogen are also disclosed. Example processes can include generating protons from a Fe3+/Fe2+ or V5+/V4+ electrolyte solution; and reacting the protons with H2O to form H2.
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公开(公告)号：US10673090B2
公开(公告)日：2020-06-02
申请号：US14875565
申请日：2015-10-05
发明人： Zimin Nie , Wei Wang , Xiaoliang Wei , Bin Li , Jun Liu , Vincent L. Sprenkle
摘要： All-vanadium sulfate redox flow battery systems have a catholyte and an anolyte comprising an aqueous supporting solution including chloride ions and phosphate ions. The aqueous supporting solution stabilizes and increases the solubility of vanadium species in the electrolyte, allowing an increased vanadium concentration over a desired operating temperature range. According to one example, the chloride ions are provided by MgCl2, and the phosphate ions are provided by (NH4)2HPO4.
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公开(公告)号：US20240210356A1
公开(公告)日：2024-06-27
申请号：US18541396
申请日：2023-12-15
发明人： Xiaoqin Zang , Zhiqun Deng , Wei Wang , Litao Yan , Zimin Nie
IPC分类号： G01N29/032 , G01N29/024 , G01N29/24 , H01M8/04313 , H01M8/18
CPC分类号： G01N29/032 , G01N29/024 , G01N29/2475 , H01M8/04313 , H01M8/188 , G01N2291/02416
摘要： 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.
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公开(公告)号：US20200259200A1
公开(公告)日：2020-08-13
申请号：US16859142
申请日：2020-04-27
发明人： Zimin Nie , Wei Wang , Xiaoliang Wei , Bin Li , Jun Liu , Vincent L. Sprenkle
摘要： All-vanadium sulfate redox flow battery systems have a catholyte and an anolyte comprising an aqueous supporting solution including chloride ions and phosphate ions. The aqueous supporting solution stabilizes and increases the solubility of vanadium species in the electrolyte, allowing an increased vanadium concentration over a desired operating temperature range. According to one example, the chloride ions are provided by MgCl2, and the phosphate ions are provided by (NH4)2HPO4.
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公开(公告)号：US20180366757A1
公开(公告)日：2018-12-20
申请号：US15625750
申请日：2017-06-16
发明人： Xiaoliang Wei , Wei Wang , Aaron M. Hollas , Vincent L. Sprenkle , Zimin Nie , Bin Li
CPC分类号： H01M8/188 , C07D241/46 , H01M4/90 , H01M4/9016 , H01M4/96 , H01M8/08 , H01M2300/0002
摘要： Embodiments of an aqueous electrolyte comprising a base and a phenazine derivative are disclosed. Redox flow batteries including the aqueous electrolyte are also disclosed. The phenazine derivative has a chemical structure according to formula I:
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