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公开(公告)号：US10290889B2
公开(公告)日：2019-05-14
申请号：US14909855
申请日：2014-08-04
发明人： Hirokazu Kaku , Yongrong Dong , Kei Hanafusa , Ryojun Sekine
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.
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公开(公告)号：US10096855B2
公开(公告)日：2018-10-09
申请号：US14350968
申请日：2012-11-21
发明人： Hirokazu Katayama , Yasuhiro Okuda , Naoki Shimbara , Toshio Shigematsu , Yongrong Dong , Kei Hanafusa , Fumihiro Hayashi , Aya Ooya
IPC分类号： H01M8/18 , H01M8/1067 , H01M8/20 , H01M8/0289
摘要： A redox flow cell membrane includes a porous membrane that has a mean flow pore size of not more than 100 nm, that has a thickness of not more than 500 μm, and that has an air flow rate of not less than 0.1 ml/s·cm2. When the redox flow cell membrane is used for a V—V-based redox flow cell, the porous membrane preferably has a mean flow pore size of not more than 30 nm.
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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：US20180316017A1
公开(公告)日：2018-11-01
申请号：US15769271
申请日：2016-10-03
发明人： Kei Hanafusa , Kenichi Ito , Takashi Kanno , Souichirou Okumura
CPC分类号： H01M4/96 , H01M8/188 , Y02E60/528
摘要： An electrode for redox flow battery is disposed opposite a membrane of a redox flow battery. The electrode includes a fiber assembly including a plurality of carbon fibers. The fiber assembly includes soft carbon fibers with a Young's modulus of 200 GPa or less. An average carbon fiber diameter of the soft carbon fibers is preferably 20 μm or less.
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5.发明申请BIPOLAR PLATE, REDOX FLOW BATTERY, AND METHOD FOR PRODUCING BIPOLAR PLATE 审中-公开双极板，再循环流动电池和生产双极板的方法公开(公告)号：US20170047594A1
公开(公告)日：2017-02-16
申请号：US15305768
申请日：2015-01-23
发明人： Kei Hanafusa , Kenichi Itou , Souichirou Okumura , Takemi Terao , Hayato Fujita
CPC分类号： H01M8/026 , H01M8/188 , H01M8/2459 , H01M8/2483 , Y02E60/528 , Y02P70/56
摘要： Provided are a bipolar plate that can decrease the internal resistance of a flow battery, a redox flow battery, and a method for producing a bipolar plate. A bipolar plate sandwiched between a positive electrode in which a positive electrode electrolyte flows and a negative electrode in which a negative electrode electrolyte flows includes a positive-electrode-side surface in which a flow channel having a plurality of grooves through which the positive electrode electrolyte flows is provided and a negative-electrode-side surface in which a flow channel having a plurality of grooves through which the negative electrode electrolyte flows is provided. Each of the flow channels includes an inflow channel through which the electrolyte flows into the electrode and an outflow channel through which the electrolyte flows out of the electrode, the inflow channel and the outflow channel are not in communication with each other and are independent from each other, and the grooves each have a wide portion inside the groove, the wide portion having a width larger than a width of an opening of the groove.
摘要翻译： 提供了能够降低流动电池，氧化还原液流电池的内部电阻和制造双极板的方法的双极板。 夹在其中正极电解质流动的正极和负极电解质流动的负极之间的双极板包括正电极侧表面，其中具有多个槽的流路，正极电极电解质 提供流动，并且设置具有多个沟槽的流动通道的负极侧表面，负极电解质流过该沟槽。 每个流动通道包括流入电极的流入通道和电解质从电极流出的流出通道，流入通道和流出通道不彼此连通，并且与每个流体通道独立 另一方面，凹槽各自在凹槽内部具有宽的部分，宽的部分的宽度大于凹槽的开口的宽度。
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公开(公告)号：US20170012299A1
公开(公告)日：2017-01-12
申请号：US15113376
申请日：2014-12-09
发明人： Kenichi Itou , Kei Hanafusa , Souichirou Okumura , Takemi Terao
IPC分类号： H01M8/0263 , H01M8/20 , H01M4/86 , H01M8/18
CPC分类号： H01M8/0263 , H01M4/8626 , H01M8/188 , H01M8/20 , Y02E60/528
摘要： A redox flow battery having reduced internal resistance is provided. The redox flow battery includes a membrane, a bipolar plate, an electrode disposed between the membrane and the bipolar plate, an inlet port for supplying an electrolyte to the electrode, and an outlet port for discharging the electrolyte from the electrode, and performs a charge-discharge reaction by allowing the electrolyte to flow in the electrode. The electrode includes an anisotropic electrode layer having different permeabilities between a direction A1 on a plane of the electrode and a direction A2 orthogonal to the direction A1 on the plane of the electrode. In the anisotropic electrode layer, a permeability K1 in the direction A1 is larger than a permeability K2 in the direction A2. The electrode is disposed such that the direction A1 is substantially parallel to a main flow direction of the electrolyte in the electrode, the main flow direction being determined on the basis of a positional relationship between the inlet port and the outlet port and a shape of a surface of the bipolar plate on the electrode side.
摘要翻译： 提供具有降低的内阻的氧化还原液流电池。 氧化还原液流电池包括膜，双极板，设置在膜和双极板之间的电极，用于向电极供应电解质的入口端口和用于从电极排出电解质的出口，并执行电荷 通过允许电解质在电极中流动来进行充电反应。 电极包括在电极的平面上的方向A1和与电极的平面上的方向A1正交的方向A2之间具有不同渗透性的各向异性电极层。 在各向异性电极层中，方向A1的导磁率K1大于A2方向的磁导率K2。 电极被设置为使得方向A1基本上平行于电极中的电解质的主流动方向，主流动方向基于入口和出口之间的位置关系确定， 电极侧的双极板的表面。
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公开(公告)号：US20140255821A1
公开(公告)日：2014-09-11
申请号：US14350968
申请日：2012-11-21
发明人： Hirokazu Katayama , Yasuhiro Okuda , Naoki Shimbara , Toshio Shigematsu , Yongrong Dong , Kei Hanafusa , Fumihiro Hayashi , Aya Ooya
CPC分类号： H01M8/1067 , H01M8/0289 , H01M8/188 , H01M8/20 , H01M2300/0082 , Y02E60/528
摘要： A redox flow cell membrane includes a porous membrane that has a mean flow pore size of not more than 100 nm, that has a thickness of not more than 500 μm, and that has an air flow rate of not less than 0.1 ml/s·cm2. When the redox flow cell membrane is used for a V—V-based redox flow cell, the porous membrane preferably has a mean flow pore size of not more than 30 nm.
摘要翻译： 氧化还原流通池膜包括平均流通孔径不大于100nm的多孔膜，其厚度不大于500μm，空气流速不小于0.1ml / s· cm2。 当氧化还原流通池膜用于V-V型氧化还原流动池时，多孔膜的平均流动孔径优选不大于30nm。
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公开(公告)号：US11108057B2
公开(公告)日：2021-08-31
申请号：US16467659
申请日：2017-06-21
发明人： Hiroyuki Nakaishi , Kei Hanafusa
IPC分类号： H01M8/0258 , H01M8/04186 , H01M8/18
摘要： A bipolar plate arranged to face an electrode along which electrolyte is circulated, the bipolar plate includes a flow passage that is provided on at least one of front and back surfaces of the bipolar plate and along which the electrolyte is circulated. The flow passage provided on the at least one of the front and back surfaces of the bipolar plate includes an introduction path along which the electrolyte is introduced and a discharge path that does not communicate with and is independent of the introduction path and along which the electrolyte is discharged. At least one of the introduction path and the discharge path includes an inclined groove that non-orthogonally intersects a long side and a short side of an imaginary rectangle that includes an outer edge of the bipolar plate.
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公开(公告)号：US20200067107A1
公开(公告)日：2020-02-27
申请号：US16467659
申请日：2017-06-21
发明人： Hiroyuki Nakaishi , Kei Hanafusa
IPC分类号： H01M8/0258 , H01M8/04186 , H01M8/18
摘要： A bipolar plate arranged to face an electrode along which electrolyte is circulated, the bipolar plate includes a flow passage that is provided on at least one of front and back surfaces of the bipolar plate and along which the electrolyte is circulated. The flow passage provided on the at least one of the front and back surfaces of the bipolar plate includes an introduction path along which the electrolyte is introduced and a discharge path that does not communicate with and is independent of the introduction path and along which the electrolyte is discharged. At least one of the introduction path and the discharge path includes an inclined groove that non-orthogonally intersects a long side and a short side of an imaginary rectangle that includes an outer edge of the bipolar plate.
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公开(公告)号：US10218007B2
公开(公告)日：2019-02-26
申请号：US15305768
申请日：2015-01-23
发明人： Kei Hanafusa , Kenichi Itou , Souichirou Okumura , Takemi Terao , Hayato Fujita
IPC分类号： H01M8/026 , H01M8/24 , H01M8/2483 , B29C43/02 , B29C45/00 , B29C65/00 , H01M8/18 , H01M8/20 , B29K105/16 , B29L31/34
摘要： Provided are a bipolar plate that can decrease the internal resistance of a flow battery, a redox flow battery, and a method for producing a bipolar plate. A bipolar plate sandwiched between a positive electrode in which a positive electrode electrolyte flows and a negative electrode in which a negative electrode electrolyte flows includes a positive-electrode-side surface in which a flow channel having a plurality of grooves through which the positive electrode electrolyte flows is provided and a negative-electrode-side surface in which a flow channel having a plurality of grooves through which the negative electrode electrolyte flows is provided. Each of the flow channels includes an inflow channel through which the electrolyte flows into the electrode and an outflow channel through which the electrolyte flows out of the electrode, the inflow channel and the outflow channel are not in communication with each other and are independent from each other, and the grooves each have a wide portion inside the groove, the wide portion having a width larger than a width of an opening of the groove.
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