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Hidrógeno electrolítico

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ELECTROLYSIS DEVICE

NºPublicación:  EP4715092A2 25/03/2026
Solicitante: 
TOSHIBA KK [JP]
Kabushiki Kaisha Toshiba
EP_4715092_A2

Resumen de: EP4715092A2

According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0 ≦ A ≦ B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or / and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.

WATER TREATMENT LOOP FOR CONNECTION TO AN ELECTROLYSIS STACK

NºPublicación:  EP4713297A1 25/03/2026
Solicitante: 
GRUNDFOS HOLDING AS [DK]
Grundfos Holding A/S
WO_2025016765_PA

Resumen de: WO2025016765A1

The invention relates to a water treatment loop (20) for connection to at least one electrolysis stack (8) of a hydrogen producing electrolysis plant (40), comprising: a water inlet section (21) into which water drained from at least one electrolysis stack (8) can be recirculated; an ion exchanger (2) arranged downstream of the water inlet section (21); a water outlet section (22) arranged downstream of the ion exchanger (2) and adapted to supply water treated by the ion exchanger (2) to said at least one electrolysis stack (8); and a catalytic surface (23) arranged downstream of the water inlet section (21) and upstream of the ion exchanger (2), so that water recirculated via the water inlet section (21) is made to contact the catalytic surface (23) prior to interaction with the ion exchanger (2), whereby oxidants such as peroxides are at least partly removed from the water, prior to being treated by the ion exchanger (2).

A MEMBRANE ELECTRODE ASSEMBLY AND A METHOD FOR THE MANUFACTURE THEREOF

NºPublicación:  EP4713978A1 25/03/2026
Solicitante: 
GORE & ASS [US]
GORE W L & ASS GMBH [DE]
W L GORE & ASS G K [JP]
W. L. Gore & Associates, Inc,
W. L. Gore & Associates GmbH,
W. L. Gore & Associates G.K
KR_20260025088_PA

Resumen de: WO2024236080A1

There is provided a membrane electrode assembly (MEA) for an electrochemical devices, such as for fuel cells and electrolyzers, particularly for polymer electrolyte membrane (PEM) fuel cells, said membrane electrode assembly comprising a composite electrolyte membrane comprising a reinforced electrolyte layer comprising at least one porous support, the porous support being at least partially imbibed with a first ion exchange material; and a first electrode comprising a reinforced electrode layer comprising a porous support, the porous support being at least partially imbibed with a first catalyst and a second ion exchange material, wherein the composite electrolyte membrane is in contact with the first electrode. Also provided is a composite electrolyte membrane, which can be used in the manufacture of the membrane electrode assembly and a fuel cell and electrolyzer comprising such a membrane electrode assembly. A method for the manufacture of the membrane electrode assembly, and a membrane electrode assembly obtainable by such a method are also disclosed.

ELECTROLYSIS CELL, ELECTROLYSIS BLOCK COMPRISING A PLURALITY OF CORRESPONDING ELECTROLYSIS CELLS, AND ELECTROLYSIS DEVICE COMPRISING A PLURALITY OF ELECTROLYSIS CELLS

NºPublicación:  EP4713504A1 25/03/2026
Solicitante: 
ANDRITZ AG MASCHF [AT]
Andritz AG
WO_2024234026_PA

Resumen de: WO2024234026A1

The invention relates to an electrolysis cell (1) for alkaline hydrogen electrolysis, comprising an electric anode (2), an electric cathode (3), a separation layer (4) which is substantially permeable to ions, is electrically insulating, is preferably in the form of a membrane or a diaphragm and is placed between the anode (2) and the cathode (3), and two electrically conductive half-shells (5, 5') which are electrically insulatingly connected to one another at their edges, wherein: the anode (2) is electrically conductingly connected to the first half-shell (5), and the cathode (3) is electrically conductingly connected to the second half-shell (5'); the anode (2), the cathode (3) and the separation layer (4) are placed between the two half-shells (5, 5') such that an anode chamber (6) and a cathode chamber (7) are formed; each of the half-shells comprises at least one inflow pipe (8, 8') and at least one outflow pipe (9, 9') for a medium; and each of the half-shells (5, 5') comprises a metal support frame (10, 10') for absorbing compressive forces, and a substantially flat outer skin (11, 11'), the support frame (10, 10') and outer skin (11, 11') being integrally bonded together, preferably welded together.

1つ以上の加圧電解槽スタックからの二相流出物を生成及び処理するための方法、並びに1つ以上の個々の加圧電解槽スタックを備える電解槽システム

NºPublicación:  JP2026509856A 25/03/2026
Solicitante: 
ティッセンクルップ・ヌセラ・アクチェンゲゼルシャフト・ウント・コンパニー・コマンディトゲゼルシャフトアウフアクチェン
JP_2026509856_A

Resumen de: CN120936421A

A method for generating and treating a two-phase effluent from one or more pressurized electrolysis cell stacks adapted to electrolyze water into hydrogen and oxygen, whereby a pump supplies a cathodic electrolysis fluid stream from a first gas-liquid gravity separator vessel to the electrolysis cell stack, whereby another pump supplies an anode electrolysis fluid flow from a second gas-liquid gravity separator vessel to the electrolysis cell stack, and whereby at least one cyclone gas-liquid separator receives a combined effluent from the cathode electrolysis chamber and/or receives a combined effluent from the anode electrolysis chamber, these combined effluents are respectively located within respective gas-liquid gravity separator containers, whereby further, the at least one cyclonic gas-liquid separator separates the gas from the liquid within the gas-liquid gravity separator container along a substantially horizontal cyclonic axis of rotation. An electrolytic cell system is also provided.

電気合成又は電気エネルギー液体ガスセル又はセルスタックのためのバランスオブプラント

NºPublicación:  JP2026509887A 25/03/2026
Solicitante: 
ハイサタ・ピーティーワイ・リミテッド
JP_2026509887_A

Resumen de: CN121100420A

Gas pressure equalization systems (400-401) and methods of operation for electrosynthetic or electrical energy liquid gas cells or cell stacks (210) are disclosed in one example. The gas pressure equalization systems (400-401) include a first pressure equalization tank (410) for partially containing a first liquid (470) and a first gas. The first gas is positioned above a first liquid level (471). A first gas conduit (430) is provided for transporting the first gas between the battery or battery stack (210) and the first pressure equalization tank (410). In another example, a second pressure equalization tank (420) may additionally be provided for partially containing a second liquid (473) and a second gas positioned above a second liquid level (472). A second gas conduit (440) is then provided for conveying the second gas between the cell or cell stack (210) and the second pressure equalization tank (420).

強化イオン伝導性膜

NºPublicación:  JP2026509703A 25/03/2026
Solicitante: 
ジョンソンマッセイハイドロジェンテクノロジーズリミテッド
JP_2026509703_A

Resumen de: CN120476490A

The present invention provides a reinforced ion conducting membrane comprising: (a) a reinforcement layer comprising a porous polymer structure; and (b) a polymer ion conducting membrane material impregnated within the porous polymer structure; wherein the porous polymer structure comprises a polymer backbone based on a nitrogen-containing heterocyclic ring, and the polymer ion-conducting membrane material has a transition temperature T alpha in the range of from 60 DEG C to 80 DEG C and including end values.

腐食抑制システム、無炭素発電システム、および燃料電池システム

NºPublicación:  JP2026053311A 25/03/2026
Solicitante: 
エスケーイノベーションカンパニーリミテッド
JP_2026053311_A

Resumen de: US20260074250A1

A corrosion-resistant system, a carbon-free power generation system, and a fuel cell system are provided. The corrosion-resistant system includes an ammonia supply unit; a first conduit connected to the ammonia supply unit; an ammonia decomposition unit comprising a chamber connected to the first conduit; and a second conduit connected to the chamber, wherein an operating temperature of the chamber is 410° C. or lower, the first conduit and the chamber comprise at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel and a nickel-based alloy, and the second conduit comprises a nickel-based alloy (NT) satisfying Equation 1: T≤15 μm.

アンモニア分解反応器、水素生成装置及びそれを用いた水素生成方法

NºPublicación:  JP2026053313A 25/03/2026
Solicitante: 
エスケーイノベーションカンパニーリミテッド
JP_2026053313_A

Resumen de: US20260070031A1

An ammonia decomposition reactor, a hydrogen production apparatus and a method for producing hydrogen are provided. The ammonia decomposition reactor may include a first chamber and a second chamber, wherein an operating temperature of the first chamber is 410° C. or lower, the first chamber includes at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel, and a nickel-based alloy, and the second chamber includes a nickel-based alloy (NT) satisfying Equation 1 below.T≤15⁢μmEquation⁢1

CO2 AND H2O CO-ELECTROLYSER SYSTEM

NºPublicación:  EP4713502A1 25/03/2026
Solicitante: 
ECOLE POLYTECHNIQUE FED LAUSANNE EPFL [CH]
Ecole Polytechnique F\u00E9d\u00E9rale de Lausanne (EPFL)
KR_20250174963_PA

Resumen de: CN121152900A

A water and carbon dioxide co-electrolysis system (1) comprises an anion exchange membrane (AEM) cell (2) having at least one AEM cell (2c) comprising a cathode (8), an anode (12), and an AEM membrane (16) separating the cathode from the anode, and an anolyte circuit (18) in which the AEM membrane (16) is separated from the anode, an anolyte is fluidly connected to the anode (12) via an anolyte inlet (14i) and an anolyte outlet (14o) of the anode (12). The CO2 and H2O co-electrolysis system further comprises a mineralization system (3) comprising a mineralization unit (27) connected to the anolyte circuit (18) and comprising a mineralized metal configured to react with carbonate and bicarbonate ions circulating in the anolyte circuit (18) to form a metal carbonate.

水電解システム及び水電解システムの制御方法

NºPublicación:  JP2026052258A 24/03/2026
Solicitante: 
株式会社日立製作所
JP_2026052258_A

Resumen de: WO2026058474A1

This water electrolysis system is provided with: a hydrogen production device unit that comprises a water electrolysis stack unit that includes one or more water electrolysis stacks that produce oxygen and hydrogen through an electrolytic reaction; a power source that supplies direct-current power to the one or more water electrolysis stacks; a pure water supply piping system that supplies pure water; an oxygen outflow piping system that causes oxygen produced by the water electrolysis stack unit to flow out to the outside; a hydrogen outflow piping system that causes hydrogen produced by the water electrolysis stack unit to flow out to the outside; an insulation unit that electrically insulates between the hydrogen production device unit and the ground; electrically insulating first insulated piping that is disposed in part of the pure water supply piping system; electrically insulating second insulated piping that is disposed in part of the oxygen outflow piping system; and electrically insulating third insulated piping that is disposed in part of the hydrogen outflow piping system.

电极、电解槽、生产方法及电极的应用

NºPublicación:  CN121729525A 24/03/2026
Solicitante: 
马克斯普朗克科学促进学会
CN_121729525_A

Resumen de: WO2025017013A1

The present invention relates to an electrode comprising or consisting of an electrocatalyst, the electrocatalyst comprising a metal boride, wherein the metal boride comprises at least one element M1 selected from Ti, Zr and Hf, and at least one element M2 selected from Co, Ni, Ru, Rh, Pd, Ir and Pt; and the metal boride contains more than 10 atomic % of M2. The present invention also provides an electrode obtainable by subjecting the electrode to an electrocatalytic reaction. It also relates to an electrolyzer comprising said electrode. It is also concerned with a method for producing an electrode, and use of an electrode in an electrocatalytic reaction.

一种金属基活性材料及其制备方法和应用

NºPublicación:  CN121700447A 20/03/2026
Solicitante: 
陕西华秦新能源科技有限责任公司
CN_121700447_PA

Resumen de: CN119020815A

The invention provides an electrode and a preparation method and application thereof, and belongs to the technical field of functional materials. The electrode comprises a substrate, a nickel transition layer wrapping the surface of the substrate and a porous active layer wrapping the surface of the nickel transition layer, the porous active layer is made of nickel-based alloy or cobalt-based alloy, and alloy elements in the nickel-based alloy and the cobalt-based alloy comprise zinc. The electrode provided by the invention has the characteristics of high activity, high stability and high binding force when being used for producing hydrogen by electrolyzing water.

引入参比电极的阴离子交换膜水电解系统及其制造方法

NºPublicación:  CN121712928A 20/03/2026
Solicitante: 
韩国科学技术院
CN_121712928_PA

Resumen de: WO2026019015A1

One embodiment of the present invention provides an anion-exchange membrane water electrolysis system incorporating a reference electrode, and a method for producing same. The anion-exchange membrane water electrolysis system incorporating a reference electrode according to one embodiment of the present invention places the reference electrode not between reduction (cathode) and oxidation (anode) electrodes but outside of a membrane electrode assembly, thereby allowing overvoltage of each electrode to be measured without degrading system performance.

电解装置

NºPublicación:  CN121700422A 20/03/2026
Solicitante: 
株式会社东芝
CN_121700422_PA

Resumen de: US20260078510A1

According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0≤A≤B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or/and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.

APPARATUS FOR PRODUCING HYDROGEN FROM WATER BY MEANS OF ELECTRICAL CURRENT, AND METHOD FOR OPERATING SAME

NºPublicación:  WO2026057209A1 19/03/2026
Solicitante: 
QUEST ONE GMBH [DE]
QUEST ONE GMBH
WO_2026057209_A1

Resumen de: WO2026057209A1

The invention relates to an apparatus (10) for producing hydrogen from water by means of electrical current, the apparatus comprising: a plurality of electrolysis devices (11), each electrolysis device (11) having at least one water supply connection (13), at least one water discharge connection (14), and at least one hydrogen discharge connection (15), each electrolysis device (11) being connected, via its at least one water supply connection (13), to a water supply line (16), via its at least one water discharge connection (14) to a discharge line (17) for water and oxygen, and via its at least one hydrogen discharge connection (15) to a discharge line (18) for hydrogen; a housing or frame (19) in which the electrolysis devices (11) are arranged; an inert gas generation device (20) which is designed to generate inert gas in situ within the apparatus (10), wherein each electrolysis device (11) and/or the discharge line (18) for hydrogen and/or a device (22) arranged in the hydrogen discharge line (18) for processing the hydrogen and/or the discharge line (17) for water and oxygen and/or a device (23) arranged in the discharge line (17) for water and oxygen for removing oxygen from the discharged water and/or the housing or frame (19) can be flushed with inert gas generated by the inert gas generation device (20).

WATER ELECTROLYSIS SYSTEM AND METHOD FOR CONTROLLING WATER ELECTROLYSIS SYSTEM

NºPublicación:  WO2026058474A1 19/03/2026
Solicitante: 
HITACHI LTD [JP]
\u682A\u5F0F\u4F1A\u793E\u65E5\u7ACB\u88FD\u4F5C\u6240
WO_2026058474_A1

Resumen de: WO2026058474A1

This water electrolysis system is provided with: a hydrogen production device unit that comprises a water electrolysis stack unit that includes one or more water electrolysis stacks that produce oxygen and hydrogen through an electrolytic reaction; a power source that supplies direct-current power to the one or more water electrolysis stacks; a pure water supply piping system that supplies pure water; an oxygen outflow piping system that causes oxygen produced by the water electrolysis stack unit to flow out to the outside; a hydrogen outflow piping system that causes hydrogen produced by the water electrolysis stack unit to flow out to the outside; an insulation unit that electrically insulates between the hydrogen production device unit and the ground; electrically insulating first insulated piping that is disposed in part of the pure water supply piping system; electrically insulating second insulated piping that is disposed in part of the oxygen outflow piping system; and electrically insulating third insulated piping that is disposed in part of the hydrogen outflow piping system.

PROCESS AND PLANT

NºPublicación:  WO2026057993A1 19/03/2026
Solicitante: 
JOHNSON MATTHEY DAVY TECHNOLOGIES LTD [GB]
JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED
WO_2026057993_A1

Resumen de: WO2026057993A1

A process for the catalytic cracking of a liquid ammonia feedstock to produce a cracked gas stream, comprising the steps of i) heating the liquid ammonia feedstock to an intermediate temperature by heat exchange with a liquid heat exchange medium to produce a cooled liquid heat exchange medium; and ii) using the cooled liquid heat exchange medium to provide cooling to one or more downstream processes.

PROCESS AND PLANT

NºPublicación:  WO2026057995A1 19/03/2026
Solicitante: 
JOHNSON MATTHEY DAVY TECHNOLOGIES LTD [GB]
JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED
WO_2026057995_A1

Resumen de: WO2026057995A1

A process for the catalytic cracking of a liquid ammonia feedstock to produce a cracked gas stream, comprising the steps of i) heating the liquid ammonia feedstock to an intermediate temperature by heat exchange with a liquid heat exchange medium to produce a cooled liquid heat exchange medium; and ii) using the intermediate temperature liquid ammonia feedstock to provide cooling to one or more downstream processes.

METHOD FOR ELECTROLYTIC SPLITTING OF WATER

NºPublicación:  WO2026057486A1 19/03/2026
Solicitante: 
BOSCH GMBH ROBERT [DE]
ROBERT BOSCH GMBH
WO_2026057486_A1

Resumen de: WO2026057486A1

The invention relates to an electrolysis system for the electrolytic splitting of water, having an electrolysis cell (1) which has two reaction chambers (2; 3) which are separated by a semipermeable barrier, wherein a reaction chamber (2; 3) is connected to a discharge line (9) through which water and gas are discharged from the reaction chamber (2; 3). A riser pipe (20) branches off from the discharge line (9), in which riser pipe a gas sensor (17) is arranged which detects the concentration of a gas in the riser pipe (20).

ELECTROLYSIS DEVICE

NºPublicación:  US20260078510A1 19/03/2026
Solicitante: 
TOSHIBA KK [JP]
Kabushiki Kaisha Toshiba
US_20260078510_A1

Resumen de: US20260078510A1

According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0≤A≤B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or/and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.

Co3O4@IrOx catalyst, its preparation method and application

NºPublicación:  US20260078509A1 19/03/2026
Solicitante: 
XIAN JIAOTONG UNIV [CN]
Xi'an Jiaotong University
US_20260078509_A1

Resumen de: US20260078509A1

This invention discloses a Co3O4@IrOx catalyst, its preparation method, and its applications, belonging to the technical field of catalyst materials for hydrogen production through water electrolysis. The preparation method of the Co3O4@IrOx catalyst is as follows: using ZIF-67 as the core, adding a quaternary ammonium salt surfactant and an imidazole organic ligand, and reacting it with a zinc source to obtain a ZIF-67@ZIF-8 core-shell material; coating it on carbon paper to obtain a ZIF-67@ZIF-8 electrode sheet; pyrolyzing it to obtain a Co3O4@defective ZIF-8 electrode sheet; using a standard three-electrode system, with the Co3O4@defective ZIF-8 electrode sheet as the working electrode, performing pulsed potential etching in potassium hydroxide solution to obtain a Co3O4@vacancy-type ZIF-8 electrode sheet; and electrochemically depositing it in an iridium-containing potassium hydroxide solution to obtain the Co3O4@IrOx catalyst. The Co3O4@IrOx catalyst exhibits excellent hydrogen production capacity through water electrolysis.

Nickel Oxide-Based Iron-Iridium Co-Electrodeposited Catalyst, Preparation Method Thereof, and Application Thereof

NºPublicación:  US20260078508A1 19/03/2026
Solicitante: 
XIAN JIAOTONG UNIV [CN]
Xi'an Jiaotong University
US_20260078508_A1

Resumen de: US20260078508A1

The present invention discloses a nickel oxide-based iron-iridium bi-electrocatalytic catalyst, its preparation method and application, belonging to the technical field of catalytic materials. In the present invention, a nickel oxide material is prepared as a nickel oxide working electrode, and a mixed solution of an iron precursor, an iridium precursor, and an OH- source is used as an electrolyte. Iron-iridium bimetal is deposited on the nickel oxide working electrode by electrochemical deposition to obtain a nickel oxide-based iron-iridium bi-electrocatalytic catalyst. The preparation method provided by the present invention realizes the multi-scale dispersion of two metal elements, iron and iridium, on the surface of the nickel oxide support. This multi-scale structure not only provides abundant catalytic active sites, enabling the catalyst to more efficiently adsorb and activate reactants during the reaction process, but also significantly enhances the electron transfer efficiency, thereby improving the catalytic activity of the catalyst. In addition, the synergistic effect of iron and iridium optimizes the electronic structure of the catalyst, further improving its catalytic performance.

BLOCK COPOLYMER, POLYMER ELECTROLYTE MATERIAL USING SAME, POLYMER ELECTROLYTE MOLDED ARTICLE, POLYMER ELECTROLYTE MEMBRANE, CATALYST-COATED ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE COMPOSITE BODY, SOLID POLYMER FUEL CELL, AND WATER ELECTROLYTIC HYDROGEN GENERATOR

NºPublicación:  US20260078218A1 19/03/2026
Solicitante: 
TORAY IND INC [JP]
TORAY INDUSTRIES, INC
US_20260078218_A1

Resumen de: US20260078218A1

A block copolymer including one or more segments containing an ionic group (hereinafter referred to as an “ionic segment(s)”) and one or more segments containing no ionic group (hereinafter referred to as a “nonionic segment(s)”), wherein the ionic segment has an aromatic hydrocarbon polymer having a number-average molecular weight of more than 40,000 and 50,000 or less, and wherein the block copolymer satisfies the relation of: Mn3/(Mn1+Mn2)>1.5, wherein Mn1 represents the number-average molecular weight of the ionic segment, Mn2 represents the number-average molecular weight of the nonionic segment, and Mn3 represents the number-average molecular weight of the block copolymer. Provided is a block copolymer and a polymer electrolyte material produced using the same, wherein the block copolymer has excellent proton conductivity even under low-humidity conditions, has excellent mechanical strength and physical durability, and has an excellent in-process capability.

LOW-HYDROGEN-PERMEABILITY PROTON EXCHANGE MEMBRANE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Nº publicación: AU2025268573A1 19/03/2026

Solicitante:

SHANDONG DONGYUE FUTURE HYDROGEN ENERGY MAT CO LTD [CN]
SHANDONG DONGYUE FUTURE HYDROGEN ENERGY MATERIAL CO.LTD

AU_2025268573_PA

Resumen de: AU2025268573A1

The present invention relates to the technical field of the electrolysis of water, and specifically relates to a low-hydrogen-permeability proton exchange membrane, and a preparation method therefor and the use thereof. The proton exchange membrane comprises a Pt-containing additive layer and a matrix membrane, wherein the Pt-containing additive layer is composed of a Pt additive and a fluorine-containing proton exchange resin, the Pt-containing additive layer comprises an array layer and a flattening layer, the thickness ratio and the active-component ratio of the array layer to the flattening layer are respectively within the ranges of 1:(0.5-30) and 1:(1-50), and the array layer is composed of arrays arranged in order and an array layer resin coating the arrays. In the low-hydrogen-permeability proton exchange membrane provided by the present invention, by providing the Pt-containing additive layer consisting of the array layer and the flattening layer, the specific surface area of the Pt-containing additive layer is effectively increased by means of the arrays in the array layer, thereby achieving the efficient utilization of an additive; moreover, the hydrogen permeability improvement effect is further improved by controlling the thickness ratio and the active-component ratio of the array layer to the flattening layer and the parameters of the arrays.

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