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公开(公告)号：US20160013506A1
公开(公告)日：2016-01-14
申请号：US14773112
申请日：2014-08-04
发明人： Yongrong Dong , Hirokazu Kaku , Kei Hanafusa , Ryojun Sekine
CPC分类号： H01M8/188 , H01M8/20 , H01M2300/0011 , Y02E60/528
摘要： Provided is a redox flow battery that can suppress generation of a precipitation on a positive electrode. The redox flow battery performs charging and discharging by supplying a positive electrode electrolyte and a negative electrode electrolyte to a battery cell that includes a positive electrode, a negative electrode, and a separating membrane interposed between the two electrodes. The positive electrode electrolyte contains a manganese ion and an additional metal ion, the negative electrode electrolyte contains at least one metal ion selected from a titanium ion, a vanadium ion, a chromium ion, and a zinc ion, and the additional metal ion contained in the positive electrode electrolyte is at least one of an aluminum ion, a cadmium ion, an indium ion, a tin ion, an antimony ion, an iridium ion, a gold ion, a lead ion, a bismuth ion, and a magnesium ion.
摘要翻译： 提供了可以抑制正极上的析出发生的氧化还原液流电池。 氧化还原液流电池通过将正极电解质和负极电解质供给到包含正电极，负极和插入在两个电极之间的分离膜的电池单元来进行充放电。 正极电解质含有锰离子和附加的金属离子，所述负极电解质含有选自钛离子，钒离子，铬离子和锌离子中的至少一种金属离子，并且所述附加金属离子包含在 正极电解质是铝离子，镉离子，铟离子，锡离子，锑离子，铱离子，金离子，铅离子，铋离子和镁离子中的至少一种。
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公开(公告)号：US11233253B2
公开(公告)日：2022-01-25
申请号：US16319186
申请日：2017-05-17
IPC分类号： H01M8/04186 , H01M8/02 , H01M8/04276 , H01M8/18 , H01M8/04223 , H01M8/04746
摘要： Provided is an electrolyte for a flow battery, the electrolyte being supplied to a flow battery, in which a total concentration of ions of elements of groups 1 to 8 and ions of elements of groups 13 to 16 in the fifth period of the periodic table, and ions of elements of groups 1, 2, and 4 to 8 and ions of elements of groups 13 to 15 in the sixth period of the periodic table, the ions being impurity element ions involved in generation of a gas containing elemental hydrogen, is 610 mg/L or less, a concentration of vanadium ions is 1 mol/L or more and 3 mol/L or less, a concentration of free sulfuric acid is 1 mol/L or more and 4 mol/L or less, a concentration of phosphoric acid is 1.0×10−4 mol/L or more and 7.1×10−1 mol/L or less, a concentration of ammonium is 20 mg/L or less, and a concentration of silicon is 40 mg/L or less. When a charging and discharging test is performed by circulating and supplying the electrolyte to the flow battery under specific conditions, a generation rate of hydrogen is less than 10 cc/h/m2 and a generation rate of hydrogen sulfide is less than 5.0×10−3 cc/h/m2, the hydrogen and the hydrogen sulfide being generated in a negative electrode of the flow battery during charging and discharging.
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公开(公告)号：US09331356B2
公开(公告)日：2016-05-03
申请号：US14422797
申请日：2013-08-07
发明人： Yongrong Dong , Ryojun Sekine , Hirokazu Kaku , Michiru Kubata
CPC分类号： H01M8/188 , H01M8/20 , H01M2250/10 , H01M2300/0002 , Y02B90/14 , Y02E60/528
摘要： Provided are an electrolyte for a redox flow battery, the electrolyte allowing suppression of generation of precipitate and suppression of generation of hydrogen during a battery reaction; and a redox flow battery including the electrolyte. In the electrolyte for a redox flow battery, the total concentration of impurity element ions contributing to generation of precipitate during a battery reaction is 220 mass ppm or less, and the total concentration of platinum-group element ions is 4.5 mass ppm or less. In a case where the impurity element ions contributing to generation of precipitate include metal element ions, the total concentration of the metal element ions may be 195 mass ppm or less.
摘要翻译： 提供了用于氧化还原液流电池的电解质，该电解质允许抑制沉淀物的产生和在电池反应期间抑制氢的产生; 和包含电解质的氧化还原液流电池。 在氧化还原液电池的电解液中，电池反应中产生沉淀物的杂质元素离子的总浓度为220质量ppm以下，铂族元素离子的总浓度为4.5质量ppm以下。 在有助于产生沉淀物的杂质元素离子包括金属元素离子的情况下，金属元素离子的总浓度可以为195质量ppm以下。
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公开(公告)号：US20190280324A1
公开(公告)日：2019-09-12
申请号：US16319186
申请日：2017-05-17
IPC分类号： H01M8/18 , H01M8/02 , H01M8/04186 , H01M8/04276
摘要： Provided is an electrolyte for a flow battery, the electrolyte being supplied to a flow battery, in which a total concentration of ions of elements of groups 1 to 8 and ions of elements of groups 13 to 16 in the fifth period of the periodic table, and ions of elements of groups 1, 2, and 4 to 8 and ions of elements of groups 13 to 15 in the sixth period of the periodic table, the ions being impurity element ions involved in generation of a gas containing elemental hydrogen, is 610 mg/L or less, a concentration of vanadium ions is 1 mol/L or more and 3 mol/L or less, a concentration of free sulfuric acid is 1 mol/L or more and 4 mol/L or less, a concentration of phosphoric acid is 1.0×10−4 mol/L or more and 7.1×10−1 mol/L or less, a concentration of ammonium is 20 mg/L or less, and a concentration of silicon is 40 mg/L or less. When a charging and discharging test is performed by circulating and supplying the electrolyte to the flow battery under specific conditions, a generation rate of hydrogen is less than 10 cc/h/m2 and a generation rate of hydrogen sulfide is less than 5.0×10−3 cc/h/m2, the hydrogen and the hydrogen sulfide being generated in a negative electrode of the flow battery during charging and discharging.
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公开(公告)号：US20190221870A1
公开(公告)日：2019-07-18
申请号：US16319210
申请日：2017-05-17
IPC分类号： H01M8/04186 , H01M8/18 , H01M8/04746 , H01M8/04223
CPC分类号： H01M8/04186 , H01M8/02 , H01M8/04231 , H01M8/04746 , H01M8/18 , H01M8/188 , Y02E60/528
摘要： Provided is an electrolyte flow battery system including a gas supply mechanism that always continuously supplies a flow gas containing an inert gas to a gas phase in a tank that stores an electrolyte. In the electrolyte, the total concentration of ions of elements in groups 1 to 8 and 13 to 16 in the fifth period and groups 1, 2, 4 to 8, and 13 to 15 in the sixth period of a periodic table is 2,500 mg/L or less. The generation rate of hydrogen is less than 95 cc/h/m2 when a charge and discharge test is performed while the electrolyte is circulated and supplied to an electrolyte flow battery. The flow rate of the flow gas is 1.0 L/min or more and 50 L/min or less.
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公开(公告)号：US20160181640A1
公开(公告)日：2016-06-23
申请号：US14909855
申请日：2014-08-04
发明人： Hirokazu Kaku , Yongrong Dong , Kei Hanafusa , Ryojun Sekine
CPC分类号： H01M8/08 , H01M8/188 , H01M8/20 , H01M2300/0005 , H01M2300/0011 , Y02E60/528
摘要： Provided is a redox flow battery that allows suppression of generation of precipitate and also has a high energy density. The redox flow battery includes a battery cell including a positive electrode, a negative electrode, and a membrane interposed between the electrodes, the battery being configured to be charged and discharged while a positive electrode electrolyte and a negative electrode electrolyte are supplied to the battery cell, wherein the positive electrode electrolyte contains manganese ions, titanium ions, and reactive metal ions, the negative electrode electrolyte contains at least one species of metal ions selected from titanium ions, vanadium ions, chromium ions, and zinc ions, and the reactive metal ions are at least one selected from vanadium ions, chromium ions, iron ions, cobalt ions, copper ions, molybdenum ions, ruthenium ions, palladium ions, silver ions, tungsten ions, mercury ions, and cerium ions.
摘要翻译： 提供了一种氧化还原液流电池，其允许抑制沉淀物的产生并且还具有高能量密度。 氧化还原液流电池包括具有正电极，负电极和介于电极之间的膜的电池单元，该电池被配置为在将正极电解质和负极电解质供应到电池单元的同时进行充电和放电 其中，所述正极电解质含有锰离子，钛离子和反应性金属离子，所述负极电解质含有选自钛离子，钒离子，铬离子和锌离子中的至少一种金属离子，所述反应性金属离子 选自钒离子，铬离子，铁离子，钴离子，铜离子，钼离子，钌离子，钯离子，银离子，钨离子，汞离子和铈离子中的至少一种。
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公开(公告)号：US11791488B2
公开(公告)日：2023-10-17
申请号：US17543771
申请日：2021-12-07
IPC分类号： H01M8/18
CPC分类号： H01M8/188 , H01M2300/0008 , H01M2300/0011
摘要： Provided is an electrolyte for a flow battery, the electrolyte being supplied to a flow battery, in which a total concentration of ions of elements of groups 1 to 8 and ions of elements of groups 13 to 16 in the fifth period of the periodic table, and ions of elements of groups 1, 2, and 4 to 8 and ions of elements of groups 13 to 15 in the sixth period of the periodic table, the ions being impurity element ions involved in generation of a gas containing elemental hydrogen, may be 610 mg/L or less and a concentration of vanadium ions may be 1 mol/L or more and 3 mol/L or less.
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公开(公告)号：US09972858B2
公开(公告)日：2018-05-15
申请号：US14773112
申请日：2014-08-04
发明人： Yongrong Dong , Hirokazu Kaku , Kei Hanafusa , Ryojun Sekine
CPC分类号： H01M8/188 , H01M8/20 , H01M2300/0011 , Y02E60/528
摘要： Provided is a redox flow battery that can suppress generation of a precipitation on a positive electrode. The redox flow battery performs charging and discharging by supplying a positive electrode electrolyte and a negative electrode electrolyte to a battery cell that includes a positive electrode, a negative electrode, and a separating membrane interposed between the two electrodes. The positive electrode electrolyte contains a manganese ion and an additional metal ion, the negative electrode electrolyte contains at least one metal ion selected from a titanium ion, a vanadium ion, a chromium ion, and a zinc ion, and the additional metal ion contained in the positive electrode electrolyte is at least one of an aluminum ion, a cadmium ion, an indium ion, a tin ion, an antimony ion, an iridium ion, a gold ion, a lead ion, a bismuth ion, and a magnesium ion.
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公开(公告)号：US09647290B2
公开(公告)日：2017-05-09
申请号：US14422792
申请日：2013-08-07
发明人： Ryojun Sekine , Yongrong Dong , Michiru Kubata , Hirokazu Kaku
CPC分类号： H01M8/188 , H01M8/20 , H01M2220/10 , H01M2250/10 , H01M2300/0002 , Y02B90/14 , Y02E60/528
摘要： Provided is an electrolyte for a redox flow battery, the electrolyte allowing suppression of generation of precipitate during a battery reaction. In the electrolyte for a redox flow battery, the total concentration of impurity element ions contributing to generation of precipitate during a battery reaction is 220 mass ppm or less. In a case where the impurity element ions contributing to generation of precipitate include metal element ions, the total concentration of the metal element ions may be 195 mass ppm or less. In a case where the impurity element ions contributing to generation of precipitate include non-metal element ions, the total concentration of the non-metal element ions may be 21 mass ppm or less.
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公开(公告)号：US20150228997A1
公开(公告)日：2015-08-13
申请号：US14422785
申请日：2013-08-07
发明人： Yongrong Dong , Ryojun Sekine , Hirokazu Kaku , Michiru Kubata
CPC分类号： H01M8/20 , H01M8/18 , H01M8/188 , Y02E60/528
摘要： Provided are an electrolyte for a redox flow battery, the electrolyte allowing suppression of generation of hydrogen during a battery reaction; and a redox flow battery including the electrolyte. In the electrolyte for a redox flow battery, the total concentration of platinum-group element ions is 4.5 mass ppm or less. The platinum-group element ions may satisfy in terms of concentration at least one of those described below: the concentration of rhodium ions is 1 mass ppm or less, the concentration of palladium ions is 1 mass ppm or less, the concentration of iridium ions is 1 mass ppm or less, and the concentration of platinum ions is 1 mass ppm or less.
摘要翻译： 提供了用于氧化还原液流电池的电解质，该电解质允许在电池反应期间抑制氢的产生; 和包含电解质的氧化还原液流电池。 在氧化还原液电池的电解质中，铂族元素离子的总浓度为4.5质量ppm以下。 铂族元素离子可以满足下述至少一种的浓度：铑离子的浓度为1质量ppm以下，钯离子的浓度为1质量ppm以下，铱离子的浓度为 1质量ppm以下，铂离子的浓度为1质量ppm以下。
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