CN210429979U

CN210429979U - Fuel cell membrane electrode production device

Info

Publication number: CN210429979U
Application number: CN201922010270.1U
Authority: CN
Inventors: 文元庆; 邹斌
Original assignee: Shanghai Legion Electronic Technologies Co ltd
Current assignee: Zhejiang Yuanshen Hydrogen Power Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-04-28
Anticipated expiration: 2029-11-19

Abstract

The utility model provides a fuel cell membrane electrode production device, which comprises an unwinding unit along the advancing direction of a proton exchange membrane, wherein the unwinding unit comprises a first transfer printing membrane unwinding mechanism, a proton exchange membrane unwinding mechanism and a second transfer printing membrane unwinding mechanism; the rubber roller group comprises two first rubber rollers, and the two first rubber rollers are distributed on two sides of the advancing track; the hot-pressing unit comprises an anode hot-pressing unit and a cathode hot-pressing unit, the anode hot-pressing unit comprises a first heating rubber roller and a first heating steel roller, and the cathode hot-pressing unit comprises a second heating rubber roller and a second heating steel roller; the finished product winding mechanism is used for driving the proton exchange membrane to roll; the utility model provides high catalyst rendition rate to the rendition on the proton exchange membrane, and then improve the yield of membrane electrode product.

Description

Fuel cell membrane electrode production device

Technical Field

The utility model relates to a fuel cell technical field, specifically speaking relates to a fuel cell membrane electrode apparatus for producing.

Background

Proton Exchange Membrane Fuel Cells (PEMFCs) are a new type of clean energy, and are widely regarded globally for their low pollution and even non-pollution properties. The core component Membrane Electrode (MEA) of the PEMFC provides continuous channels for protons, electrons, reaction gases and water for the electrochemical reaction of the PEMFC, and is the focus of research of researchers, especially the research of the manufacturing process thereof. The transfer printing method is to coat, print or spray a prepared Catalyst slurry on a transfer printing medium, i.e., a transfer printing film, and transfer the Catalyst layer to a proton exchange membrane after drying to obtain a Catalyst-coated proton exchange membrane (CCM). Since the solvent is removed before the transfer, the proton exchange membrane does not swell, and the catalyst layer has a strong binding force with the proton exchange membrane, the transfer method is considered to be a suitable method for commercially and continuously producing the membrane electrode.

In the traditional process of preparing the membrane electrode by flat plate hot-pressing transfer printing, due to the non-uniformity of the coating of the catalyst layer on the transfer printing medium and the binder contained in the catalyst layer, although the surface of the transfer printing medium is quite smooth, the catalyst cannot be completely transferred onto the proton exchange membrane due to the non-uniform stress of the catalyst on the transfer printing medium during hot-pressing, so that the yield of membrane electrode products is low, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a fuel cell membrane electrode apparatus for producing improves the rendition rate that the catalyst rendition was to proton exchange membrane, and then improves the yield of membrane electrode product.

According to an aspect of the present invention, there is provided a fuel cell membrane electrode production apparatus for manufacturing a membrane electrode by transferring a catalyst on a transfer film onto a proton exchange membrane, the proton exchange membrane forming a traveling track along a traveling direction, along the traveling direction of the proton exchange membrane, the fuel cell membrane electrode production apparatus includes in order:

the unwinding unit comprises a first transfer printing film unwinding mechanism, a proton exchange film unwinding mechanism and a second transfer printing film unwinding mechanism; the first transfer printing film unwinding mechanism is used for driving the anode transfer printing film to unwind and roll; the proton exchange membrane unreeling mechanism is used for driving the proton exchange membrane to unreel and roll, and the second transfer printing membrane unreeling mechanism is used for driving the cathode transfer printing membrane to unreel and roll;

the glue roller set comprises two first glue rollers, the two first glue rollers are distributed on two sides of the advancing track, and the first glue rollers are used for pressing the anode transfer printing film and the cathode transfer printing film onto the proton exchange membrane;

the hot-pressing unit comprises an anode hot-pressing unit and a cathode hot-pressing unit, the anode hot-pressing unit comprises a first heating rubber roller and a first heating steel roller, and the cathode hot-pressing unit comprises a second heating rubber roller and a second heating steel roller; and

the finished product winding mechanism is used for driving the proton exchange membrane to roll;

the first transfer printing film unwinding mechanism, the first heating rubber roll and the second heating steel roll are located on the first side of the advancing track, and the second transfer printing film unwinding mechanism, the first heating steel roll and the second heating rubber roll are located on the second side of the advancing track.

Preferably, along the traveling direction of the proton exchange membrane, the fuel cell membrane electrode production device further includes a transfer membrane rolling group, the transfer membrane rolling group is used for separating the anode transfer membrane and the cathode transfer membrane from the proton exchange membrane, and the transfer membrane rolling group is located between the cathode hot-pressing group and the finished product rolling mechanism.

Preferably, along the traveling direction of the proton exchange membrane, the fuel cell membrane electrode production device further includes two protective film unwinding mechanisms respectively located at two sides of the traveling track, and the protective film unwinding mechanisms are located between the transfer film winding group and the finished product winding mechanism, and the protective film unwinding mechanisms are used for driving the protective film to unwind and roll.

Preferably, the transfer printing film rolling group comprises a first transfer printing film rolling mechanism and a second transfer printing film rolling mechanism, the first transfer printing film rolling mechanism is used for separating the anode transfer printing film from the proton exchange membrane, and the second transfer printing film rolling mechanism is used for separating the cathode transfer printing film from the proton exchange membrane.

Preferably, along the advancing direction of the proton exchange membrane, the fuel cell membrane electrode production device further comprises a protective film laminating rubber roller set, the protective film laminating rubber roller set comprises two second rubber rollers, the two second rubber rollers are distributed on two sides of the advancing track, the second rubber rollers are used for pressing a protective film onto the proton exchange membrane, and the protective film laminating rubber roller set is located between the protective film unreeling mechanism and the finished product reeling mechanism.

Preferably, the first rubber covered roller and the second rubber covered roller on one side of the advancing track are movable rollers, the first rubber covered roller and the second rubber covered roller on the other side of the advancing track are fixed rollers, the movable rollers are connected with an air cylinder, and the air cylinder is used for driving the movable rollers to be opened and closed.

Preferably, the first heating rubber roller and the second heating rubber roller are both connected with an air cylinder, and the air cylinder is used for driving the first heating rubber roller and the second heating rubber roller to be opened and closed.

Preferably, the unwinding unit and the finished product winding mechanism both comprise a deviation rectifying mechanism, and the deviation rectifying mechanism is used for preventing the anode transfer film, the proton exchange film and the cathode transfer film from deviating in the advancing process.

Compared with the prior art, the utility model beneficial effect lie in:

the utility model provides a fuel cell membrane electrode production device, which is characterized in that a hot pressing group is arranged in the advancing direction of a proton exchange membrane, and the hot pressing group comprises an anode hot pressing group consisting of a first heating rubber roller and a first heating steel roller, and a cathode hot pressing group consisting of a second heating rubber roller and a second heating steel roller; the heat transfer of the two sides of the proton exchange membrane is more uniform and sufficient, the catalyst is favorably and completely stripped from the transfer printing membrane in the rolling process, the transfer printing rate of the catalyst is improved, the finished product rate of the membrane electrode product is further improved, and the production cost of the membrane electrode product is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of a fuel cell membrane electrode production device according to an embodiment of the present invention.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, materials, devices, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising," "having," and "providing" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.

As shown in fig. 1, the utility model discloses a fuel cell membrane electrode production device for through the transfer printing method with coating in advance, printing or the catalyst of spraying on the rendition membrane rendition to proton exchange membrane on preparation membrane electrode, proton exchange membrane forms a travelling track 100 along the advancing direction, along proton exchange membrane's advancing direction, fuel cell membrane electrode production device in this embodiment includes in proper order:

the unwinding unit comprises a first transfer printing film unwinding mechanism 101, a proton exchange film unwinding mechanism 102 and a second transfer printing film unwinding mechanism 103; the first transfer printing film unreeling mechanism 101 is used for driving the anode transfer printing film to unreel and roll, and controlling the unreeling tension and speed of the anode transfer printing film; the proton exchange membrane unreeling mechanism 102 is used for driving a proton exchange membrane to unreel and roll, and controlling the unreeling tension and speed of the proton exchange membrane; the second transfer printing film unwinding mechanism 103 is used for driving the cathode transfer printing film to unwind and roll, and controlling the unwinding tension and speed of the cathode transfer printing film. In this embodiment, the first transfer printing film unwinding mechanism 101 and the second transfer printing film unwinding mechanism 103 are respectively located at two sides of the proton exchange film unwinding mechanism 102;

a rubber roller set, including two first rubber rollers 104, where the two first rubber rollers 104 are distributed on two sides of the travel track 100, and the first rubber rollers 104 are used to press the anode transfer film and the cathode transfer film onto the proton exchange membrane;

the hot-pressing group comprises an anode hot-pressing group and a cathode hot-pressing group, the anode hot-pressing group comprises a first heating rubber roller 105 and a first heating steel roller 106, and the cathode hot-pressing group comprises a second heating rubber roller 107 and a second heating steel roller 108; and

a finished product winding mechanism 109, wherein the finished product winding mechanism 109 is used for driving the proton exchange membrane to wind and roll, and controlling the winding tension and speed of the proton exchange membrane; and rolling the prepared proton exchange membrane.

In this embodiment, the first transfer film unwinding mechanism 101, the first heating roller 105 and the second heating roller 108 are sequentially located on a first side of the traveling track 100, that is, on the same side of the traveling track 100. The second transfer film unwinding mechanism 103, the first heating steel roller 106, and the second heating rubber roller 107 are sequentially located at a second side of the traveling track 100, that is, the three are located at the same side of the traveling track 100. In fig. 1, the first transfer film unwinding mechanism 101 is located at a first side of the traveling track 100, and the second transfer film unwinding mechanism 103 is located at a second side of the traveling track 100.

In other embodiments, the first transfer film unwinding mechanism 101 may be located on the second side of the traveling track 100, and the second transfer film unwinding mechanism 103 may be located on the first side of the traveling track 100. However, correspondingly, the positions of the anode hot pressing group and the cathode hot pressing group need to be changed, and at this time, the second transfer film unwinding mechanism 103, the second heating roller 107, and the first heating roller 106 are sequentially and sequentially located on the first side of the traveling track 100, and the first transfer film unwinding mechanism 101, the second heating roller 108, and the first heating roller 105 are sequentially and sequentially located on the second side of the traveling track 100.

Because the heat transfer efficiency of the heating steel roller is far greater than that of the heating rubber roller, the catalyst on one surface of the transfer film, which is driven by the heating steel roller, can be easily stripped off, the catalyst on the surface can be completely transferred onto the proton exchange film, and then the heat transfer is carried out on the two sides of the transfer film through the heating steel roller, so that the catalyst on the transfer film can be completely transferred onto the proton exchange film, the transfer rate of the catalyst is improved, and the finished product rate of the membrane electrode preparation is further improved.

In other embodiments, one skilled in the art can also arrange a plurality of the above-mentioned hot pressing sets as required.

As a preferred embodiment of the present application, along the traveling direction of the proton exchange membrane, the fuel cell membrane electrode production apparatus further includes a transfer film winding set, where the transfer film winding set is used to separate the anode transfer film and the cathode transfer film from the proton exchange membrane, respectively, and the transfer film winding set is located between the cathode hot-pressing set and the finished product winding mechanism 109.

Along the advancing direction of the proton exchange membrane, the fuel cell membrane electrode production device further includes two protective film unwinding mechanisms 110 respectively located at two sides of the advancing track 100, the protective film unwinding mechanisms 110 are located between the transfer film winding group and the finished product winding mechanism 109, and the protective film unwinding mechanisms 110 are configured to drive the protective film to unwind and roll, so as to control the unwinding tension and speed of the protective film.

The transfer film winding group includes a first transfer film winding mechanism 111 and a second transfer film winding mechanism 112, the first transfer film winding mechanism 111 is configured to separate the anode transfer film from the proton exchange membrane, and the second transfer film winding mechanism 112 is configured to separate the cathode transfer film from the proton exchange membrane.

As a preferred embodiment of the present application, along the traveling direction of the proton exchange membrane, the fuel cell membrane electrode production apparatus further includes a protective film laminating rubber roller set, where the protective film laminating rubber roller set includes two second rubber rollers 113, the second rubber rollers 113 are distributed on two sides of the traveling track 100, the second rubber rollers 113 are used to press a protective film onto the proton exchange membrane coated with a catalyst, and the protective film laminating rubber roller set is located between the protective film unwinding mechanism 110 and the finished product winding mechanism 109.

The first rubber covered roller 104 and the second rubber covered roller 113 positioned on one side of the travel track 100 are movable rollers, the first rubber covered roller 104 and the second rubber covered roller 113 on the other side are fixed rollers, the movable rollers are connected with an air cylinder, and the air cylinder is used for driving the movable rollers to open and close and controlling the opening and closing of the movable rollers. Specifically, in the transfer printing process of membrane electrode preparation, the cylinder controls the opening of the movable roller; after the preparation is finished, the cylinder controls the movable roller to close.

As a preferred embodiment of the present application, the first heating rubber roller 105 and the second heating rubber roller 107 are both high temperature resistant silicone rubber rollers and are connected to an air cylinder, and the air cylinder is used for driving the first heating rubber roller 105 and the second heating rubber roller 107 to open and close, and controlling the first heating rubber roller 105 and the second heating rubber roller 107 to open and close. Specifically, in the transfer printing process of membrane electrode preparation, the cylinder controls the opening of the first heating rubber roller 105 and the second heating rubber roller 107; after the preparation is finished, the cylinder controls the first heating rubber roller 105 and the second heating rubber roller 107 to be closed. The high temperature resistant range of the high temperature resistant silica gel roller is 150 ℃ to 300 ℃.

As a preferred embodiment of the present application, the unwinding unit and the finished product winding mechanism 109 both include a deviation correcting mechanism, and the deviation correcting mechanism is used to prevent the anode transfer film, the proton exchange film, and the cathode transfer film from deviating during the advancing process. This mechanism of rectifying adopts prior art can realize, and this embodiment is no longer repeated.

To sum up, the utility model discloses a fuel cell membrane electrode apparatus for producing has following advantage at least:

the fuel cell membrane electrode production device disclosed by the embodiment is characterized in that a hot pressing group is arranged in the advancing direction of a proton exchange membrane, and the hot pressing group comprises an anode hot pressing group consisting of a first heating rubber roller and a first heating steel roller, and a cathode hot pressing group consisting of a second heating rubber roller and a second heating steel roller; the heat transfer of the two sides of the proton exchange membrane is more uniform and sufficient, the catalyst is favorably and completely stripped from the transfer printing membrane in the rolling process, the transfer printing rate of the catalyst is improved, the finished product rate of the membrane electrode product is further improved, and the production cost of the membrane electrode product is reduced.

In the description of the present invention, it is to be understood that the terms "bottom", "longitudinal", "lateral", "up", "down", "front", "back", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the structures or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more and "several" means one or more unless otherwise specified.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A fuel cell membrane electrode production apparatus for producing a membrane electrode by transferring a catalyst on a transfer film onto a proton exchange membrane, characterized in that the proton exchange membrane forms a travel trajectory (100) along a travel direction of the proton exchange membrane, the fuel cell membrane electrode production apparatus comprising in order:

the unwinding unit comprises a first transfer printing film unwinding mechanism (101), a proton exchange film unwinding mechanism (102) and a second transfer printing film unwinding mechanism (103); the first transfer printing film unwinding mechanism (101) is used for driving the anode transfer printing film to unwind and roll; the proton exchange membrane unreeling mechanism (102) is used for driving the proton exchange membrane to unreel and roll, and the second transfer printing membrane unreeling mechanism (103) is used for driving the cathode transfer printing membrane to unreel and roll;

the glue roller set comprises two first glue rollers (104), the two first glue rollers (104) are distributed on two sides of the advancing track (100), and the first glue rollers (104) are used for pressing the anode transfer printing film and the cathode transfer printing film onto the proton exchange membrane;

the hot-pressing group comprises an anode hot-pressing group and a cathode hot-pressing group, the anode hot-pressing group comprises a first heating rubber roller (105) and a first heating steel roller (106), and the cathode hot-pressing group comprises a second heating rubber roller (107) and a second heating steel roller (108); and

the finished product winding mechanism (109), the finished product winding mechanism (109) is used for driving the proton exchange membrane to wind and roll;

the first transfer printing film unwinding mechanism (101), the first heating rubber roll (105) and the second heating steel roll (108) are located on the first side of the advancing track (100), and the second transfer printing film unwinding mechanism (103), the first heating steel roll (106) and the second heating rubber roll (107) are located on the second side of the advancing track (100).

2. The fuel cell membrane electrode production device according to claim 1, further comprising a transfer film winding group for separating the anode transfer film and the cathode transfer film from the proton exchange membrane, respectively, along the traveling direction of the proton exchange membrane, the transfer film winding group being located between the cathode hot press group and the finished product winding mechanism (109).

3. The fuel cell membrane electrode production device according to claim 2, wherein along the traveling direction of the proton exchange membrane, the fuel cell membrane electrode production device further comprises two protective film unwinding mechanisms (110) respectively located at two sides of the traveling track (100), and the protective film unwinding mechanisms (110) are located between the transfer film winding group and the finished product winding mechanism (109), and the protective film unwinding mechanisms (110) are configured to drive protective film unwinding rolls.

4. The fuel cell membrane electrode production device according to claim 2, wherein the transfer film take-up group includes a first transfer film take-up mechanism (111) and a second transfer film take-up mechanism (112), the first transfer film take-up mechanism (111) is configured to separate the anode transfer film from the proton exchange membrane, and the second transfer film take-up mechanism (112) is configured to separate the cathode transfer film from the proton exchange membrane.

5. The fuel cell membrane electrode production device according to claim 3, further comprising a protective film laminating rubber roller set along the traveling direction of the proton exchange membrane, wherein the protective film laminating rubber roller set comprises two second rubber rollers (113), the two second rubber rollers (113) are distributed on two sides of the traveling track (100), the second rubber rollers (113) are used for laminating a protective film on the proton exchange membrane, and the protective film laminating rubber roller set is located between the protective film unwinding mechanism (110) and the finished product winding mechanism (109).

6. The fuel cell membrane electrode production device according to claim 5, wherein the first rubber covered roller (104) and the second rubber covered roller (113) on one side of the travel track (100) are movable rollers, the first rubber covered roller (104) and the second rubber covered roller (113) on the other side are fixed rollers, the movable rollers are connected with an air cylinder, and the air cylinder is used for driving the movable rollers to open and close.

7. The fuel cell membrane electrode production device according to claim 1, wherein the first heating rubber roller (105) and the second heating rubber roller (107) are both connected with an air cylinder, and the air cylinder is used for driving the first heating rubber roller (105) and the second heating rubber roller (107) to be opened and closed.

8. The apparatus for producing a fuel cell membrane electrode assembly according to claim 1, wherein the unwinding unit and the product winding mechanism (109) each include a deviation correcting mechanism for preventing deviation of the anode transfer film, the proton exchange film, and the cathode transfer film during the process of traveling.