CN210458377U

CN210458377U - Anode of electrochemical system hydride and battery of electrochemical system hydride

Info

Publication number: CN210458377U
Application number: CN201920849133.4U
Authority: CN
Inventors: 闫冬升; 胡光有; 蒋章; 赵青松; 南建辉
Original assignee: Dongtai Hi Tech Equipment Technology Co Ltd
Current assignee: Zishi Energy Co.,Ltd.
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-05-05
Anticipated expiration: 2029-06-05

Abstract

The utility model provides an anode of an electrochemical system hydride and a battery of the electrochemical system hydride. The anode includes: the conductive disc is provided with a protruding edge and an accommodating part, the inner surface of the accommodating part is provided with a plurality of spaced first connecting parts, and the edge is provided with a hydrogen inlet and a hydrogen outlet; the frame-shaped sealing gasket is arranged on the inner surface of the accommodating part and is provided with second connecting parts which are arranged in one-to-one correspondence with the first connecting parts; the metal net is arranged on the inner surface of the conductive disc and is positioned in an area enclosed by the frame-shaped sealing gasket, and the surface of the metal net far away from the conductive disc protrudes out of the surface of the frame-shaped sealing gasket; an electrode disposed on the metal mesh; and the connecting pieces, the second connecting parts and the first connecting parts are used for fixedly connecting the electrodes and the frame-shaped sealing gaskets with the conductive discs. The metal net ensures that the electrolytic current is uniformly distributed, can promote the uniform mass transfer of hydrogen, improves the generation efficiency of hydride and ensures the high-efficiency and safe operation under the industrialized condition.

Description

Anode of electrochemical system hydride and battery of electrochemical system hydride

Technical Field

The utility model relates to an electrochemistry hydrogen manufacturing thing field particularly, relates to an electrochemistry hydrogen manufacturing's positive pole and electrochemistry hydrogen manufacturing's battery.

Background

The electrochemical method for preparing hydride, such as arsine, phosphine, germane, etc., has been reported in the literature and patents, and there is also a hydrogen oxidation anode method for preparing hydride.

The method for preparing the hydride by the hydrogen oxidation anode adopts hydrogen as a raw material of the anode, hydrogen ions are generated by catalyzing and electrolyzing the hydrogen, the hydrogen ions penetrate through a proton membrane to react with cations of a cathode to form the hydride, and the hydrogen participates in the reaction at the anode, so that the hydrogen is ensured to be oxidized in time to form the hydrogen ions, and the safety problem of equipment caused by excessive hydrogen is avoided. However, the current hydrogen oxidation anodes are in the laboratory research stage, the above problems are not obvious, but in the scale-up to industrial application, the hydride generation efficiency is low, and if the hydride generation efficiency is improved, the hydrogen introduction and catalysis need to be accelerated, so that the safety of the anode is reduced.

SUMMERY OF THE UTILITY MODEL

The present invention provides an anode for electrochemical system hydride and a battery for electrochemical system hydride, which can solve the problem that the battery structure for electrochemical system hydride in the prior art can not safely and efficiently generate hydride.

In order to achieve the above object, according to one aspect of the present invention, there is provided an anode for electrochemically producing hydride, comprising: the conductive disc is provided with a protruding edge and an accommodating part, the inner surface of the accommodating part is provided with a plurality of spaced first connecting parts, and the edge is provided with a hydrogen inlet and a hydrogen outlet; the frame-shaped sealing gasket is arranged on the inner surface of the accommodating part and is provided with second connecting parts which are arranged in one-to-one correspondence with the first connecting parts; the metal net is arranged on the inner surface of the conductive disc and is positioned in an area enclosed by the frame-shaped sealing gasket, and the surface of the metal net far away from the conductive disc protrudes out of the surface of the frame-shaped sealing gasket; an electrode disposed on the metal mesh; and the connecting pieces, the second connecting parts and the first connecting parts are used for fixedly connecting the electrodes and the frame-shaped sealing gaskets with the conductive discs.

Furthermore, the contact surfaces of the frame-shaped sealing gasket and the conductive disc, and the contact surfaces of the frame-shaped sealing gasket and the electrode are respectively provided with a sealing glue layer.

Furthermore, the first connecting portion is a nut, the second connecting portion is a first through hole, each connecting piece comprises a bolt matched with the nut, and the bolt penetrates through the first through hole to be matched with the nut to fixedly connect the electrode, the frame-shaped sealing gasket and the conductive disc.

Furthermore, each connecting piece also comprises a pressing plate, a second through hole is formed in the pressing plate, and the bolt sequentially penetrates through the second through hole, the first through hole and the nut to be matched so as to fixedly connect the pressing plate, the electrode and the frame-shaped sealing gasket with the conductive disc.

Furthermore, the frame-shaped sealing gasket is a rectangular rubber sealing gasket, the outer side surfaces of the frames of the frame-shaped sealing gasket are planes, the pressing plate comprises a first flat plate and a second flat plate which are perpendicular to each other, a second through hole is formed in the first flat plate, the bolt penetrates through the second through hole, the first through hole and the nut in sequence to be matched with the pressing plate, the electrode and the frame-shaped sealing gasket to be fixedly connected with the conductive disc, the first flat plate is tightly pressed on the electrode, and the second flat plate is attached to the outer side surface of the frame-shaped sealing gasket.

Further, the bolt is an organic insulating bolt.

Further, the conductive disc is a titanium metal disc, a nickel metal disc or a 316L stainless steel disc, and the metal mesh is a titanium metal mesh.

Furthermore, the surface of the metal net far away from the conductive disc protrudes 3-5 mm from the surface of the frame-shaped sealing gasket.

Further, the anode also comprises a supporting frame, and the edge of the conductive disk is supported and arranged on the supporting frame.

According to another aspect of the present invention there is provided an electrochemical hydride cell comprising an anode, a proton permeable membrane and a cathode, the anode being any one of the anodes described above.

Use the technical scheme of the utility model, adopt conductive disc, form the space that is used for holding hydrogen behind the sealed pad of frame shape and the electrode fixed connection, and adopt metal mesh support electrode, and as the current distributor between electrode and conductive disc, it is even to make electrolysis current distribution, and the elastic action of metal mesh can make hydrogen exist with the torrent state in the hydrogen is indoor, promote the even mass transfer of hydrogen, and then the catalytic electrolysis efficiency of hydrogen has been improved, the formation efficiency of hydrogen ion has been improved, and then the generation efficiency of hydride can be improved under the prerequisite of guaranteeing safety. The anode structure is easy to industrially copy, and efficient and safe operation under an industrial condition can be guaranteed by utilizing the metal mesh.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 illustrates a partial structural elevation view of an anode according to an embodiment of the present invention;

fig. 2 shows a side cross-sectional view of an anode according to another embodiment of the present invention; and

fig. 3 shows an enlarged view of a portion a shown in fig. 2, in which the structure of the support frame is omitted.

Wherein the figures include the following reference numerals:

10. a support frame; 20. a conductive plate; 21. a first connection portion; 30. a frame-shaped gasket; 31. a second connecting portion; 40. a metal mesh; 50. an electrode; 60. a connecting member; 61. a bolt; 62. a first plate; 63. a second plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As analyzed by the background of the present application, the anodes of prior art hydrogen oxidation anode processes do not produce hydrides safely and efficiently if scaled up for industrial use. To solve the problem, the present application provides an anode for an electrochemical hydride and a battery for an electrochemical hydride.

In an exemplary embodiment of the present application, there is provided an anode for electrochemical hydrogen production, as shown in fig. 1 to 3, comprising a conductive disc 20, a frame-shaped sealing gasket 30, a metal mesh 40, an electrode 50 and a plurality of connecting members 60, the conductive disc 20 having a protruding edge and a receiving portion, the receiving portion having an inner surface provided with a plurality of spaced first connecting members 21, the edge provided with a hydrogen inlet and a hydrogen outlet; the frame-shaped packing 30 is provided on the inner surface of the accommodating portion, and has second connecting portions 31 provided in one-to-one correspondence with the first connecting portions 21; the metal mesh 40 is arranged on the inner surface of the conductive disc 20 and is positioned in the area enclosed by the frame-shaped sealing gasket 30, and the surface of the metal mesh 40 far away from the conductive disc 20 protrudes out of the surface of the frame-shaped sealing gasket 30; the electrode 50 is disposed on the metal mesh 40; the connecting members 60 are provided in one-to-one correspondence with the first connecting portions 21, and the connecting members 60, the second connecting portions 31, and the first connecting portions 21 fixedly connect the electrodes 50, the frame-shaped gasket 30, and the conductive plates 20.

This application adopts electrically conductive dish 20, form the space that is used for holding hydrogen behind frame-shaped sealed pad 30 and the electrode 50 fixed connection, and adopt metal mesh 40 to support electrode 50, and be used as the current distributor between electrode 50 and electrically conductive dish 20, it is even to make the electrolysis current distribute, and the elastic action of metal mesh 40 can make hydrogen exist with the torrent state in the hydrogen room, promote the even mass transfer of hydrogen, and then the catalytic electrolysis efficiency of hydrogen has been improved, the formation efficiency of hydrogen ion has been improved, and then can improve the generating efficiency of hydride under the prerequisite of guaranteeing safety. The anode structure of the present application is easy to be industrially replicated, and efficient and safe operation under industrial conditions can be ensured by using the metal mesh 40.

In order to improve the sealing effect between the conductive pad 20, the frame-shaped gasket 30 and the electrode 50, as shown in fig. 2, the contact surface between the frame-shaped gasket 30 and the conductive pad 20 and the contact surface between the frame-shaped gasket 30 and the electrode 50 are preferably provided with sealant layers, respectively. The mode that the sealant is adhered and the connecting part is matched and fastened is adopted, so that the hydrogen and the electrolyte in the battery are further sealed and isolated, a hydrogen chamber with better sealing performance is formed, and the safety is further improved.

The connection portions may be implemented in various manners, such as connection by bolts 61, riveting, etc., for assembly, it is preferable that, as shown in fig. 2 and 3, the first connection portion 21 is a nut, the second connection portion 31 is a first through hole, each connection member 60 includes a bolt 61 adapted to the nut, and the bolt 61 passes through the first through hole to cooperate with the nut to fixedly connect the electrode 50, the frame-shaped gasket 30 and the conductive plate 20.

Since the bolts 61 need to fix the metal mesh 40, in order to improve the fixing firmness of the metal mesh 40 and avoid damage to the metal mesh 40, it is preferable that, as shown in fig. 3, each of the connecting members 60 further includes a pressing plate, the pressing plate has a second through hole, and the bolts 61 sequentially pass through the second through hole, the first through hole and the nut to cooperate to fixedly connect the pressing plate, the electrode 50, the frame-shaped sealing gasket 30 and the conductive plate 20. The contact area between the bolt 61 and the metal mesh 40 is increased by the pressure plate, and the direct extrusion of the bolt 61 to the metal mesh 40 is avoided. The cross-sectional area of the second through-hole is smaller than the cross-sectional area of the first through-hole, and the cross-sectional area of the first through-hole may be larger than the inner cross-sectional area of the nut for ease of installation, as is well known to those skilled in the art.

In an embodiment of the present invention, as shown in fig. 3, the frame-shaped sealing gasket 30 is a rectangular rubber sealing gasket, and the rectangular rubber sealing gasket utilizes the buffering effect of rubber to improve the sealing effect, and the rectangular rubber sealing gasket can be made of epdm or neoprene. In addition, preferably, the outer side surfaces of the frames of the frame-shaped sealing gasket 30 are flat surfaces, the pressing plate comprises a first flat plate 62 and a second flat plate 63 which are perpendicular to each other, the first flat plate 62 is provided with a second through hole, a bolt 61 sequentially penetrates through the second through hole and the first through hole to be matched with a nut to fixedly connect the pressing plate, the electrode 50, the frame-shaped sealing gasket 30 and the conductive plate 20, the first flat plate 62 is tightly pressed on the electrode 50, and the second flat plate 63 is attached to the outer side surface of the frame-shaped sealing gasket 30. The above-described structure of the pressing plate contributes to the stabilization of the bolts 61.

In order to avoid the electrochemical reaction of the bolt 61 during the electrolysis process, the bolt 61 is preferably an organic insulating bolt 61, such as a polyvinylidene fluoride bolt 61 or a polytetrafluoroethylene bolt 61.

The conductive plate 20 used in the present application may be made of any conductive metal, and in order to prolong the service life of the conductive plate 20, it is preferable that the conductive plate 20 is a titanium metal plate, a nickel metal plate, or a 316L stainless steel plate. The main function of the metal mesh 40 is to support the electrode 50 and to distribute the current, preferably it is a titanium metal mesh 40, which uses the inertia of titanium metal to extend its useful life.

In order to provide as large a hydrogen-containing space as possible and to ensure sealing, it is preferable that the surface of the metal mesh 40 remote from the conductive plate 20 protrude 3 to 5mm from the surface of the frame-shaped gasket 30.

Further, as shown in fig. 1, the anode further includes a support frame 10, and an edge of the conductive plate 20 is supported and disposed on the support frame 10. The above-described support frame 10 is provided for supporting the electrically conductive disc 20 on the one hand and for facilitating the assembly of the anode with the proton-permeable membrane and the cathode on the other hand.

The electrode 50 of the present application may be formed by oxidizing a common electrode material in an anode with hydrogen, for example, a composite layer structure, that is, a catalyst and a catalyst carrier are made into a catalytic slurry, the catalytic slurry is filled into a current collector (electrode support material), and a composite structure electrode is obtained by pressing the current collector (electrode support material) with a press, wherein the catalytic active material is platinum nanoparticles or platinum ruthenium nanoparticles loaded on a common carbon material, which is not described herein again.

In addition, the pipeline material and the mounting disc material of hydrogen entry and hydrogen exit linkage of this application are the same, are convenient for welded connection between the two. The hydrogen gas enters from the back of the electrode 50 mounting plate and exits from the back of the electrode 50 mounting plate.

In another exemplary embodiment of the present invention, there is provided an electrochemical hydride battery comprising an anode, a proton permeable membrane, and a cathode, the anode being any one of the anodes described above. The main frame structure of the cathode is consistent with that of the anode, and the cathode electrode is selected according to different reaction conditions and different reaction raw materials. The assembly of the anode, the proton permeable membrane and the cathode can refer to the assembly of the fuel cell or the flow battery in the prior art, for example, the sealing surfaces of the anode and the cathode are respectively pasted with a sealing gasket, then the proton exchange membrane is placed between the anode and the cathode pasted with the sealing gasket, and the assembly of the electrochemical hydride battery is completed by adopting a bolt pressing mode.

The advantageous effects of the present application will be further described below with reference to examples and comparative examples.

Example 1

The supporting frame 10 is a square frame welded by adopting a combination of 304 stainless steel square pipes 30mm multiplied by 20mm and 3mm in wall thickness, and the external dimension is 320mm multiplied by 380 mm. The thickness of the conductive disc 20 is 1.5mm, the material is metal titanium, the metal plate is folded into a disc shape according to the design requirement, and the edge of the conductive disc is supported on the supporting frame 10. M5 round nuts are welded on the inner surface of the accommodating part of the conductive disc 20, the number of the nuts is 40, and the nuts are made of metal titanium. The lower surface of the frame-shaped sealing gasket 30 made of ethylene propylene diene monomer rubber is coated with G11 glue (prepared by adopting toluene and G11 glue in a volume ratio of 1: 1), air-dried for 2min, round holes of the frame-shaped sealing gasket 30 correspond to the welded round nuts one by one, and the lower surface of the frame-shaped sealing gasket 30 is in contact with the conductive disc 20. An elastic titanium wire mesh is laid in the inner space formed by the frame-shaped gasket 30 as a metal mesh 40, and the diameter of the wire mesh is 0.3mm, so that the top of the wire mesh is 5mm higher than the upper plane of the frame-shaped gasket 30. Uniformly brushing and coating G11 glue on the upper surface of the frame-shaped sealing gasket 30, then placing a hydrogen oxidation electrode 50 with the thickness of 1mm on the upper surface of the placed metal net 40, pressing the upper surface of the hydrogen oxidation electrode 50 by a flat plate to compress the metal net 40, completely contacting the lower surface of the hydrogen oxidation electrode 50 with the upper surface of the frame-shaped sealing gasket 30 coated with the glue, fastening and connecting M5 round nuts and PVDF bolts 61 one by adopting a right-angle pressing plate, wherein the right-angle pressing plate is made of metal titanium, and finishing the installation of the anode shown in the figures 1 to 3. The hydrogen oxidation electrode is obtained by filling a carrier slurry loaded with a platinum catalyst into an electrode current collector nickel and pressing the electrode.

Example 2

The supporting frame 10 is a square frame welded by adopting a combination of 304 stainless steel square pipes 30mm multiplied by 20mm and 3mm in wall thickness, and the external dimension is 450mm multiplied by 600 mm. The thickness of the conductive disc 20 is 1.5mm, the material is metal titanium, the metal plate is folded into a disc shape according to the design requirement, and the edge of the conductive disc is supported on the supporting frame 10. M5 round nuts are welded on the inner surface of the accommodating part of the conductive disc 20, the number of the nuts is 60, and the conductive disc is made of titanium metal. The lower surface of the frame-shaped sealing gasket 30 made of chloroprene rubber is coated with G11 glue (prepared by adopting toluene and G11 glue with the volume ratio of 1: 1), air-dried for 2min, the round holes of the frame-shaped sealing gasket 30 correspond to the welded round nuts one by one, and the lower surface of the frame-shaped sealing gasket 30 is contacted with the conductive disc 20. An elastic silk screen made of titanium material is laid in the inner space formed by the frame-shaped sealing gasket 30 to be used as a metal mesh 40, the diameter of the silk screen is 0.4mm, and the top of the silk screen is higher than the upper plane of the sealing gasket by 3 mm. Coating uniformly G11 glue on the upper surface of the sealing ring, then placing a hydrogen oxidation electrode 50 with the thickness of 1mm on the upper surface of the placed metal mesh 40, pressing the upper surface of the hydrogen oxidation electrode 50 by a flat plate to compress the elastic silk screen, completely contacting the lower surface of the hydrogen oxidation electrode 50 with the upper surface coated with the glue, adopting a right-angle pressing plate to fasten M5 round nuts and PVDF screws one by one, and finishing the installation of the anode shown in the figures 1 to 3, wherein the right-angle pressing plate is made of metal titanium. The hydrogen oxidation electrode is obtained by filling a carrier slurry loaded with a ruthenium catalyst into an electrode current collector nickel and pressing the electrode.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

the space for containing hydrogen is formed after the conductive disc, the frame-shaped sealing gasket and the electrode are fixedly connected, the metal mesh is adopted to support the electrode and is used as a current distributor between the electrode and the conductive disc, so that the electrolytic current is uniformly distributed, the hydrogen can exist in a hydrogen chamber in a turbulent flow state under the elastic action of the metal mesh, the uniform mass transfer of the hydrogen is promoted, the catalytic electrolysis efficiency of the hydrogen is improved, the forming efficiency of hydrogen ions is improved, and the generation efficiency of hydride can be improved on the premise of ensuring safety. The anode structure is easy to industrially copy, and efficient and safe operation under an industrial condition can be guaranteed by utilizing the metal mesh.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An anode for electrochemical production of a hydrogen species, comprising:

a conductive disc (20) having a protruding rim and a receiving portion, the inner surface of the receiving portion being provided with a plurality of spaced first connections (21), the rim being provided with a hydrogen inlet and a hydrogen outlet;

a frame-shaped gasket (30) provided on an inner surface of the housing portion, and having second connecting portions (31) provided in one-to-one correspondence with the first connecting portions (21);

the metal mesh (40) is arranged on the inner surface of the conductive disc (20) and is positioned in an area surrounded by the frame-shaped sealing gasket (30), and the surface, far away from the conductive disc (20), of the metal mesh (40) protrudes out of the surface of the frame-shaped sealing gasket (30);

an electrode (50) disposed on the metal mesh (40);

the plurality of connecting pieces (60) are arranged in one-to-one correspondence with the first connecting portions (21), and the connecting pieces (60), the second connecting portions (31) and the first connecting portions (21) are used for fixedly connecting the electrodes (50), the frame-shaped sealing gaskets (30) and the conductive discs (20).

2. Anode according to claim 1, characterized in that the contact surfaces of the frame-shaped gasket (30) and the conducting disc (20) and the contact surfaces of the frame-shaped gasket (30) and the electrode (50) are provided with a layer of sealant, respectively.

3. The anode according to claim 1, wherein the first connection portion (21) is a nut and the second connection portion (31) is a first through hole, each of the connectors (60) comprises a bolt (61) adapted to the nut, and the bolt (61) passes through the first through hole and cooperates with the nut to fixedly connect the electrode (50), the frame-shaped gasket (30) and the conductive plate (20).

4. The anode according to claim 3, wherein each connector (60) further comprises a pressing plate, wherein a second through hole is formed in the pressing plate, and the bolt (61) penetrates through the second through hole, the first through hole and the nut in sequence to be matched with each other to fixedly connect the pressing plate, the electrode (50) and the frame-shaped sealing gasket (30) with the conductive disc (20).

5. The anode according to claim 4, wherein the frame-shaped gasket (30) is a rectangular rubber gasket, and the outer side surface of each frame of the frame-shaped gasket (30) is a plane, the pressing plate comprises a first flat plate (62) and a second flat plate (63) which are perpendicular to each other, the first flat plate (62) is provided with the second through hole, the first flat plate (62) is tightly pressed on the electrode (50), and the second flat plate (63) is attached to the outer side surface of the frame-shaped gasket (30).

6. Anode according to claim 3, characterized in that the bolts (61) are organic insulating bolts (61).

7. Anode according to claim 1, characterized in that the electrically conductive disc (20) is a titanium metal disc, a nickel metal disc or a 316L stainless steel disc and the metal mesh (40) is a titanium metal mesh (40).

8. Anode according to claim 1, characterized in that the surface of the metal mesh (40) facing away from the conductive disc (20) protrudes 3-5 mm from the surface of the frame-shaped sealing gasket (30).

9. Anode according to claim 1, characterized in that it further comprises a support frame (10), the edge support of the conductive disc (20) being arranged on the support frame (10).

10. An electrochemical hydride cell comprising an anode, a proton permeable membrane and a cathode, wherein the anode is an anode according to any one of claims 1 to 9.