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公开(公告)号：US11777120B2
公开(公告)日：2023-10-03
申请号：US17429971
申请日：2020-02-20
发明人： Ryouta Tatsumi , Hirokazu Kaku , Atsuo Ikeuchi
IPC分类号： H01M8/04746 , H01M8/0289 , H01M8/0438 , H01M8/04537 , H01M8/18
CPC分类号： H01M8/04753 , H01M8/0289 , H01M8/0438 , H01M8/04604 , H01M8/188
摘要： A redox flow battery includes a tank configured to store an electrolyte and a distribution mechanism to distribute the electrolyte to a battery cell. The tank has a partition portion partitioning a space inside the tank into a first space and a second space, the distribution mechanism has a distribution passage through which the electrolyte is distributed between the first space and the second space via the battery cell, and the partition portion is composed of a flexible material.
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公开(公告)号：US11753309B2
公开(公告)日：2023-09-12
申请号：US17270357
申请日：2019-08-29
发明人： Jun Fukuda , Tatsuya Tsurumura , Hirokazu Kaku , Ryouta Tatsumi
CPC分类号： C01G23/008 , H01M8/188 , C01P2002/74 , C01P2004/61
摘要： There is provided a titanyl sulfate hydrate powder comprising 25 to 40% by mass of titanium element in terms of TiO2, 40 to 60% by mass of sulfur element in terms of H2SO4, and niobium element in such an amount that a molar ratio of niobium element to titanium element (Nb/Ti) is 0.00005 to 0.012, with a molar ratio of the sulfur element content to the titanium element content (S/Ti) being 1.1 to 1.5, and comprising crystalline titanyl sulfate dihydrate (TiOSO4·2H2O). Thus, the present invention can provide a titanyl sulfate hydrate powder with a high dissolution rate in water and a production method therefor, as well as a method for producing an aqueous titanyl sulfate solution, a method for producing an electrolyte and a method for producing a redox flow battery, using the titanyl sulfate hydrate powder.
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公开(公告)号：US11217808B2
公开(公告)日：2022-01-04
申请号：US16760654
申请日：2018-11-02
发明人： Hirokazu Kaku , Ryouta Tatsumi , Tatsuya Tsurumura
IPC分类号： H01M8/1016 , H01M8/08 , H01M8/18 , H01M4/86
摘要： A raw material of an electrolyte solution that is to be dissolved in a solvent to form an electrolyte solution, and the raw material of an electrolyte solution is a raw material of an electrolyte solution that is a solid or semisolid that contains Ti in an amount of 2 mass % to 83 mass % inclusive, Mn in an amount of 3 mass % to 86 mass % inclusive, and S in an amount of 6 mass % to 91 mass % inclusive.
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公开(公告)号：US20180269513A1
公开(公告)日：2018-09-20
申请号：US15537605
申请日：2015-12-15
发明人： Hirokazu Kaku , Ryouta Tatsumi , Yongrong Dong
IPC分类号： H01M8/18
CPC分类号： H01M8/188 , H01M8/18 , H01M2300/0008 , H01M2300/0011 , Y02E60/528
摘要： A redox flow battery includes a battery cell including a positive electrode, a negative electrode, and a membrane disposed between these two electrodes; a positive electrode electrolyte supplied to the positive electrode; and a negative electrode electrolyte supplied to the negative electrode, wherein the positive electrode electrolyte contains manganese ions and a phosphorus-containing substance, the negative electrode electrolyte contains at least one species of metal ions selected from titanium ions, vanadium ions, chromium ions, and zinc ions, and a concentration of the phosphorus-containing substance is 0.001 M or more and 1 M or less.
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