Absstract of: JP2021093793A

【課題】蓄電池を別途設けることなく、外部電源の電力の供給に不具合が生じた異常時でも、発電部の動作を停止させる停止制御を行うことが可能な発電システムを提供する。【解決手段】この発電システム１００は、発電を行う発電部１０と、コンデンサ２１を含み、発電部１０により発電された電力を変換する電力変換部２０と、発電部１０の制御を行う制御装置３０と、異常時に電力変換部２０のコンデンサ２１の電力を制御装置３０に供給する電力供給回路６０と、を備える。【選択図】図２

Absstract of: DE102019134071A1

Die Erfindung betrifft ein Verfahren für einen Froststart einer Brennstoffzellenvorrichtung (1) mit einem eine Mehrzahl von Brennstoffzellen (2) aufweisenden Brennstoffzellenstapel (3), der über eine Brennstoffleitung (12) mit einem Brennstofftank (13) für eine Zufuhr von Brennstoff an die Anoden und über einer Kathodenfrischgasleitung (9) für eine Zufuhr von Kathodengas an die Kathoden verbunden ist, mit einer Rezirkulationsleitung für die Rezirkulation von im Brennstoffzellenstapel (3) nicht verbrauchten Brennstoffs in die Brennstoffleitung (12), und mit einer durch den Brennstoffzellenstapel (3) geführten Kühlmittelleitung (21), umfassend die Schritte des Feststellens des Vorliegens von Froststartbedingungen, des initialen Zuführens von Brennstoff aus dem Brennstofftank (13) an die Anoden und von Kathodengas an die Kathoden und des Durchleitens von Kühlmedium durch die Kühlmittelleitung (21), sowie des Einstellens des Volumenstromes des Kühlmediums derart, dass die Brennstoffleitung (12) mit dem Brennstoff und die Kühlmittelleitung (21) mit dem Kühlmedium mit einer Temperaturdifferenz zueinander aufgeheizt werden, die kleiner als ein Schwellenwert ist. Die Erfindung betrifft weiterhin eine Brennstoffzellenvorrichtung (1) sowie ein Kraftfahrzeug mit einer Brennstoffzellenvorrichtung (1).

Absstract of: WO2019239732A1

An electrode for a redox flow battery, provided with a base and a catalyst part supported by the base. The base contains one or more elements selected from the group consisting of C, Ti, Sn, Ta, Ce, In, W, and Zn. The catalyst part contains one or more elements selected from the group consisting of Fe, Si, Mo, Ce, Mn, Cu, and W.

Absstract of: WO2019229994A1

The method for controlling a catalyst combustion device, which has a heater capable of heating fuel to be supplied to a catalyst, involves a step for supplying oxidant gas to the catalyst combustion device and an injection step for injecting fuel into the catalyst combustion device. In addition, the injection step includes a power supply step for supplying power to the heater and a setting step for setting the injection amount of the fuel to be injected into the catalyst combustion device in accordance with an output of the heater.

Absstract of: WO2019229877A1

The fuel cell system is provided with a fuel cell, a first injection device for supplying fuel to the fuel cell, and a second injection device disposed on the upstream side of the first injection device on a fuel flow path reaching from a fuel storage unit to the first injection device. The first and second injection devices allow a flow path continuing to the downstream side from the fuel flow path to be switched between a first flow path via the first injection device and a second flow path via the second injection device. The second injection device operates less frequently than the first injection device while the fuel cell system is in operation.

Absstract of: WO2019234867A1

A bipolar plate having an electrode of a redox flow battery positioned thereon and comprising: a facing surface that faces said electrode; and at least one groove that forms, in the facing surface, a flow path through which an electrolytic solution flows, wherein when the bipolar plate is in planar view, at least one of the grooves has a curved section.

Absstract of: US2021170910A1

A control device for a fuel cell vehicle includes a power limiter limiting power of a fuel cell when a temperature correlation value correlated to a temperature of the fuel cell indicates that the temperature is equal to or higher than a temperature threshold, a calculation unit calculating a weight of a towed vehicle, a gradient acquirer acquiring upward gradients at respective points on a planned traveling route, a predictor predicting whether the power of the fuel cell is limited when the fuel cell vehicle is traveling along the planned traveling route in a towing travel state, and a controller issuing, when the predictor predicts that the power of the fuel cell is limited, an alert that a vehicle speed of the fuel cell vehicle is expected to decrease when the fuel cell vehicle is traveling along the planned traveling route in the towing travel state.

Absstract of: US2021184228A1

Provide an electrode catalyst with excellent catalytic activity that can contribute to cost reduction of PEFC. The electrode catalyst includes a hollow carbon carrier with mesopores with a pore size of 2 to 50 nm and a catalyst particle supported on the carrier. The catalyst particle is supported on both inside and outside the mesopores of the carrier, and have a core portion formed on the carrier and a shell portion covering at least a part of the surface of the core portion. Pd is included in the core portion, and Pt is included in the shell portion, and when the analysis of the particle size distribution of the catalyst particles using the three dimensional reconstructed image obtained by electron beam tomography (electron tomography) measurement using an STEM is performed, the ratio of the catalyst particles supported inside the mesopore is 50% or more.

Absstract of: US2021180707A1

A discharge valve is provided in a recirculation line through which gas discharged from a fuel cell stack recirculates to the stack. The discharge valve opens or closes a discharge line through which a fluid in the recirculation line is discharged. The discharge valve includes a valve body connected to the discharge line and a drive part disposed in the valve body to be movable vertically. A diaphragm is coupled to a lower end of the drive part and selectively opens or closes the discharge line based on the vertical movement. The drive part switches between a closed state in which the discharge line is closed by the diaphragm, a first opened state in which the discharge line is opened to a first opening degree, and a second opened state in which the discharge line is opened to a second opening degree greater than the first opening degree.

Absstract of: US2021184597A1

Disclosed are a grid-connected power conversion system and a control method thereof. The grid-connected power conversion system includes a fuel cell stack generating a DC voltage, a power conversion system (PCS) converting the DC voltage supplied from the stack into an AC voltage, a multi-input transformer including a primary coil having a plurality of voltage input terminals and a secondary coil transforming a magnitude of the voltage applied to the primary coil and outputting the transformed voltage, the plurality of voltage input terminals determining the number of turns of the primary coil differently from each other, one of the plurality of voltage input terminals receiving the AC voltage converted in the PCS, and a controller selecting the one of the plurality of voltage input terminals of the multi-input transformer based on the magnitude of the DC voltage generated from the stack and determining whether to replace the stack.

Absstract of: US2021184230A1

A separator for a fuel cell includes a main body having an inlet manifold for inflow of a reactant gas, an outlet manifold for outflow of the reactant gas, and a flow area between the inlet manifold and the outlet manifold where the reactant gas is configured to flow, and a resistance part provided in the flow area of the main body adjacent to the inlet manifold of the main body, the resistance part being configured to increase flow resistance to the reactant gas introduced from the inlet manifold and flowing toward the outlet manifold.

Absstract of: US2021178326A1

A method for producing electrical energy. An electrolyte solution having a first concentration CA of a solute is placed in a first vessel having an electrode arranged so the electrode is contacted with the electrolyte solution of concentration CA. An electrolyte solution having a concentration CB of the same solute is placed in a second vessel having an electrode arranged so the electrode comes in contact with the electrolyte solution of concentration CB, the concentration CB being lower than the concentration CA. The first and the second vessels are separated by a membrane, the membrane having at least one nanochannel arranged to allow diffusion of the electrolyte solution from the first vessel to the second vessel through the at least one nanochannel. An inner surface of the at least one nanochannel is formed of at least one titanium oxide. Electrical energy generated by a potential difference existing between the electrodes is captured using a device having the first and second vessels.

Absstract of: US2021178340A1

The invention relates to membranes, monomers and polymers. The monomers can form polymers, which can be used for membranes. The membranes can be used in alkaline fuel cells, for water purification, for electrolysis, for flow batteries, and for anti-bacterial membranes and materials, as well as membrane electrode assemblies for fuel cells. In addition to the membranes, polymers and monomers and methods of using the membranes, the present invention also relates to methods of making the membranes, monomers and polymers.

Absstract of: US2021184249A1

A solid electrolyte including: an oxide represented by Formula 1LiyMzHfO3-x  Formula 1wherein, in Formula 1,M is a divalent element, a trivalent element, or a combination thereof, and0≤x<3, 0

Absstract of: US2021178330A1

The present invention relates to a method for manufacturing a hollow fiber membrane module by using an open hollow fiber membrane cartridge, and a hollow fiber membrane module manufactured by same, the method for manufacturing a hollow fiber membrane module according to an embodiment of the present invention comprising the steps of: preparing a hollow fiber membrane cartridge; opening the hollow fiber membrane cartridge; arranging a hollow fiber membrane on the opened hollow fiber membrane cartridge; and closing the hollow fiber membrane cartridge on which the hollow fiber membrane is arranged.

Absstract of: JP2021093358A

【課題】本発明の課題は、酵素発電デバイス用正極を構成する正極組成物を提供することである。本発明の酵素発電デバイス用正極を用いることにより、それを具有する低コストで出力性能に優れた酵素発電デバイスを提供することである。【解決手段】表面に大環状化合物が担持された導電性炭素材料と、液状媒体とを含むことを特徴とする酵素発電デバイス正極用組成物により解決できる。又、上記大環状化合物が、フタロシアニン及びポルフィリンからなる群より選ばれる少なくとも１種である前記酵素発電デバイス正極用組成物により解決できる。【選択図】なし

Absstract of: JP2021093348A

【課題】水酸化物イオン伝導体を用いたカソード触媒層、並びに、これを用いた膜電極接合体及び燃料電池において、中和反応の反応速度を向上させること。【解決手段】カソード触媒層は、プロトン伝導体（Ａ）を主成分とする多孔質のプロトン伝導経路と、酸素還元触媒を含むカソード触媒と前記カソード触媒の表面を被覆する水酸化物イオン伝導体とを備えている。前記カソード触媒は、前記プロトン伝導経路の表面又は隙間に担持されている。前記酸素還元触媒は、酸素還元反応（Ｏ2＋Ｈ2Ｏ＋４ｅ-→４ＯＨ-）に対する活性を持つ。膜電極接合体及び燃料電池は、このようなカソード触媒層を備えている。【選択図】図３

Absstract of: JP2021091410A

【課題】タンクとタンクプロテクタとの間の隙間が拡大することを抑制する技術を提供する。【解決手段】タンクの搭載構造は、前記タンクの固定に使用されるフレームと、前記フレームとともに前記タンクを挟んだ状態で、前記タンクの膨張または収縮に追随して前記タンクを固定するバンドと、前記バンドの内側もしくは外側に固定されたタンクプロテクタと、を備える。【選択図】図３

Absstract of: GB2572989A

Fuel cell stack assemblies comprise positive and negative end plates. Both the positive end plate 200 and the negative end plate (300, Fig 3) are formed from a central structural element 220 with an end plate cover 210 on one surface 221, and an end plate manifold 230 on the other surface 222, with both the end plate cover and manifold preferably being electrically insulating. The central structural element 220 may be made of aluminium, or a para-aramid synthetic fibre or carbon fibre composite. The electrically insulating material is preferably glass-filled PET. A plurality of cathode plates (1501-150n, Fig 1) and a plurality of fuel cell assemblies (2501-250n, Fig 1) can be arranged in a stack having an alternating pattern of cathode plates and fuel cell assemblies, with the positive end plate and the negative end plate provided on either end of the stack of cathode plates and fuel cell assemblies. Preferably, the positive end plate manifold 230 is provided with straight-wall airflow channels, and the negative end plate manifold (330, Fig 3) is provided with sinusoidal wave-shaped airflow channels, for optimum thermal control of the fuel cell stack.

Absstract of: WO2020040515A1

The present invention relates to an apparatus and a method for plasticizing a solid oxide fuel cell and, more specifically, to an apparatus and a method for plasticizing a solid oxide fuel cell, the apparatus and the method being capable of performing pre-sintering and main sintering by adjusting the height of a setter and using a single device.

Absstract of: JP2021093338A

【課題】大面積の高分子電解質膜を、シワ欠陥を生じさせることなく、かつ膜を破断することなく連続的に製造する方法の提供。【解決手段】基材シート３にプロトン伝導性ポリマー溶液を連続的に塗布する工程と、ナノファイバーシート１を非鏡面ロールに接触させながら張力をかけて繰り出す工程と、塗布された前記プロトン伝導性ポリマー溶液に、前記ナノファイバーシートの第１表面を連続的に接触させて、表面処理ナノファイバーシートを得る工程と、前記表面処理ナノファイバーシートを乾燥させる工程と、を含み、ナノファイバーの平均繊維径が１００ｎｍ〜６００ｎｍであり、該シートを長尺方向に８％変形させるために必要な荷重が０．２Ｎ／１０ｍｍ以上であり、該シートを繰り出す張力が、前記ナノファイバーシートの短尺方向の長さが−３．０％〜０．５％変化する張力であり、該シートの短尺方向の少なくとも一方の末端を該ポリマー溶液に接触させる方法。【選択図】図１

Absstract of: JP2021093320A

【課題】燃料電池システムにおいて、設備の大型化を抑制しつつ燃料電池セルスタックでの発電効率を高める。【解決手段】燃料電池システム１０Ａは、燃料ガスと空気とを反応させて発電する燃料電池セルスタック１６と、燃料ガスと二酸化炭素とを含むバイオガスＧ１を送出するバイオガス供給管Ｐ１と燃料電池セルスタック１６から排出されたアノードオフガスＧ５とを合流させる合流部Ｍ１と、合流部Ｍ１よりも下流側で、バイオガスＧとアノードオフガスＧ５の混合ガスＧ２から二酸化炭素を除去して処理後混合ガスＧ３とし、処理後混合ガスＧ３を燃料電池セルスタック１６へ向かって送出する二酸化炭素除去部２０と、を備えている。【選択図】図１

Absstract of: JP2021093298A

【課題】耐食性に優れた金属基材を用いた燃料電池用セパレータを提供する。【解決手段】金属基材１１の表層部にチタン金属層１３と、その表面に炭化チタン又は窒化チタンを含むガスバリヤ層１４と、該ガスバリヤ層表面に積層した導電性炭素皮膜１５とからなる積層ガスバリヤ層を有する燃料電池用セパレータであって、前記金属基材とチタン金属層の間にミキシング層１２を有し、積層ガスバリヤ層に存在する貫通欠陥部分Ｄ２に耐食性皮膜１７を有することを特徴とする。【選択図】図２

Absstract of: JP2021093259A

【課題】電極触媒層中の物質輸送性およびプロトン伝導性を向上し、長期的に高い発電性能を発揮することが可能な電極触媒層、膜電極接合体及び固体高分子形燃料電池を提供する。【解決手段】固体高分子形燃料電池３に用いられる電極触媒層であって、触媒物質１２と、該触媒物質を担持する導電性担体１３と、高分子電解質１４と、繊維状物質１５とを含んでおり、繊維状物質は、電子伝導性繊維またはプロトン伝導性繊維から選ばれたいずれか一方または両方を含む一種類以上の繊維からなり、且つその繊維径分布が二つ以上のピークを持つことを特徴とする電極触媒層１０。【選択図】図１

Absstract of: JP2021093340A

【課題】水蒸気保持部材に対して燃料ガスを均等に供給することができ、煤の発生を抑制することができる燃料電池システムを提供する。【解決手段】燃料極１ａ、空気極１ｂ及び電解質１ｃを有して電力を発生させ得るセル１と、燃料極１ａに供給される燃料ガスの流通経路に配設され、セル１による発電に伴って燃料極１ａで生じる水蒸気を保持して燃料ガスに混合させ得るとともに、燃料ガスを反応させて水素を生成し得る改質触媒を具備し、当該改質触媒による触媒反応にて生成された水素を燃料極１ａに供給し得る水蒸気保持部材１１とを有した燃料電池システムにおいて、水蒸気保持部材１１の表面側の複数位置に向かって燃料ガスをそれぞれ噴出し得る複数の噴出口１３ａを具備したものである。【選択図】図２