A fully glued and integrated encapsulated cell module for a fuel cell and its manufacturing process

Abstract

The present invention discloses a fully glued, integrated, and packaged fuel cell module and its manufacturing process. The module comprises bipolar plates and a membrane electrode assembly (MEA)-gas seal assembly. Several bipolar plates and MEA-gas seal assemblies are stacked sequentially between anode and cathode separators, and an outer water seal is glued to the anode separator. A gluing mold is then used to form the cell module. The inner water seal and the gas seal utilize the same colloid material and are manufactured using the same process to achieve integrated cell module packaging. This invention improves power density and single-stack power, enhances assembly precision, reduces mold and equipment specification requirements, saves manufacturing time and labor costs, provides electrical insulation protection, and provides cushioning and structural strength during assembly to prevent damage from collisions, deformation from external forces, and the intrusion of contaminants.

Description

Technical Field

[0001] The present invention belongs to the technical field of fuel cells, and in particular relates to a fuel cell fully-glued integrated packaged cell module and a manufacturing process thereof. Background Art

[0002] A fuel cell is a device that converts the chemical energy of fuel directly into electrical energy, also known as an electrochemical generator. In the history of energy development, fuel cells are the fourth power generation technology after hydropower generation, thermal power generation and nuclear power generation.

[0003] In generally known fuel cell technology, bipolar plates are the core structural components of a fuel cell stack. Gas flow channels are provided on both the front and back surfaces of the known bipolar plates. Common bipolar plate materials are graphite or metal. When assembling the stack, the bipolar plates, membrane electrode, bipolar plates, membrane electrode, etc. are arranged in sequence according to the power requirements of the stack until the last dummy plate is added to complete the cell stacking step in the stack assembly process. For example, Chinese patent application CN207233866U discloses a fuel cell stack composed of anode and cathode plates, bipolar plates, and membrane electrode stacked in sequence. The plates are fixed between the upper and lower end plates by insulating sleeves, fastening screws, and nuts. In addition to playing the role of conducting electricity, the bipolar plates also serve as supporting mechanical structures, evenly distributing gas for cathode and anode reactions, and conducting heat. Their performance directly affects the size, output power, and life of the stack. In the above-mentioned cell stacking step, since the bipolar plate is a double-sided electrode plate structure, each electrode plate is set corresponding to the membrane electrode. Therefore, once the power of the stack is determined, the required number of cells must be stacked in sequence at one time. For example, with the current fuel cell metal bipolar plate technology, a stack with a power of 120 kilowatts (kW) requires about 300 to 400 cells. In other words, if you want to complete a 120-kilowatt stack, you must stack 300 to 400 cells at one time and continuously, which is a heavy burden on the overall assembly accuracy, mold specifications, equipment specifications, and process time and labor costs.

[0004] In addition, after the existing fuel cell stack is stacked, the outer surface of the stack is the edge of the bipolar plate. Since the bipolar plate is conductive, the edge of the bipolar plate is easily damaged by collision, deformed by external force, or dirt stuck in the gap between the bipolar plates, etc., which leads to a decrease in the electrical performance of the stack, and this is especially serious for metal stacks. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the present invention aims to provide a fuel cell fully glued integrated packaged cell module, which adopts an integrated molding method to improve assembly accuracy and reduce the requirements for mold and equipment specifications, so as to save process time and labor costs, and can effectively prevent damage caused by collision, deformation caused by external force, or the entry of dirt, while achieving an increase in power density and maximum power of a single stack.

[0006] In order to achieve the above technical objectives and effects, the present invention is implemented through the following technical solutions:

[0007] A fuel cell fully glued integrated packaged cell module and manufacturing process, comprising:

[0008] The bipolar plate is composed of an anode separator, a cathode separator and an inner water seal, wherein the inner water seal is located between the anode separator and the cathode separator, and the three are bonded together by gluing;

[0009] The membrane electrode assembly-gas seal assembly consists of a membrane electrode assembly and a gas seal, wherein the membrane electrode assembly is located in the middle of the gas seal and the two are bonded together by gluing;

[0010] A plurality of bipolar plates and membrane electrode assembly-gas seal assemblies are stacked sequentially between the anode separator and the cathode separator, and an outer water seal is glued to the anode separator, and a gluing mold is used to form a battery cell module;

[0011] The inner water seal and the air seal are made of the same colloid material and the same manufacturing process to achieve integrated packaging of the battery cell module.

[0012] Furthermore, an anode reaction area is provided on the front of the anode separator, and a cathode reaction area is provided on the front of the cathode separator. The anode reaction area and the cathode reaction area are arranged correspondingly. After the back of the anode separator and the back of the cathode separator are glued to the inner water seal, a cooling liquid flow channel is formed between the anode separator and the cathode separator.

[0013] Furthermore, a water seal groove is provided on the anode separator, the inner water seal is provided in the water seal groove, and the inner water seal protrudes from the end surface of the water seal groove.

[0014] Furthermore, the membrane electrode assembly includes a catalyst coating membrane, and the catalyst coating membrane is provided with an anode end gas diffusion layer on the anode reaction area side and a cathode end gas diffusion layer on the cathode reaction area side.

[0015] Furthermore, the gas seal includes a structural layer, and the upper and lower end surfaces of the structural layer are respectively provided with adhesive layers that adhere to the corresponding anode separator and cathode separator.

[0016] Furthermore, at least two first openings, at least two second openings and at least two third openings are provided on the two short sides of the anode isolation plate; at least two fourth openings, at least two fifth openings and at least two sixth openings are provided on the two short sides of the cathode isolation plate; at least two seventh openings, at least two eighth openings and at least two ninth openings are provided on the two short sides of the gas seal; the first opening, the fourth opening and the seventh opening are provided in correspondence, the second opening, the fifth opening and the eighth opening are provided in correspondence, and the third opening, the sixth opening and the ninth opening are provided in correspondence.

[0017] Furthermore, the inner water seal and the outer water seal are both made of colloid extracted from plants.

[0018] Furthermore, the anode separator and the cathode separator are both made of metal plates.

[0019] The manufacturing process of the fully glued integrated packaged cell module of the fuel cell includes the following steps:

[0020] 1) placing the anode separator bonded with the outer water seal on the bottom layer of the lower mold of the bonding mold, with the outer water seal at the bottom;

[0021] 2) stacking the membrane electrode assembly-gas seal assembly and the bipolar plate in sequence on the anode separator;

[0022] 3) After the membrane electrode assembly-gas seal assembly and the bipolar plates are stacked, a set of the membrane electrode assembly-gas seal assembly and a set of the cathode separators are stacked on top of the uppermost bipolar plate;

[0023] 4) Cover the upper mold of the gluing mold and glue the battery cell module.

[0024] Furthermore, the bonding temperature of the battery cell module is 125-135°C, and the bonding time is 15-25 minutes.

[0025] The beneficial effects of the present invention are as follows: the anode separator and the cathode separator of the present invention are bonded to the inner water seal to form a bipolar plate, and when stacked in sequence, a membrane electrode group-gas seal assembly is respectively provided between two adjacent groups of bipolar plates. After assembly, they are bonded by hot pressing to achieve integrated molding, which not only achieves an increase in power density and maximum power of a single stack, but also improves assembly accuracy and reduces requirements for mold and equipment specifications, thereby saving process time and labor costs. At the same time, electrical insulation protection is achieved through the bonding connection method, providing sufficient buffering and structural strength during assembly, so that tolerances in the process can be relaxed, maintaining the overall appearance dimensions, and effectively preventing damage caused by collision, deformation caused by external force, or the entry of dirt, thereby improving service life.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 This is an exploded view of the battery cell module of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall structure of the battery module of the present invention from a first perspective;

[0030] Figure 3 This is a schematic diagram of the overall structure of the battery module of the present invention from a second viewing angle;

[0031] Figure 4 This is a schematic diagram of the connection between the anode separator and the external water seal of the present invention;

[0032] Figure 5 This is an exploded view of the bipolar plate of the present invention;

[0033] Figure 6 is a cross-sectional view of the bipolar plate of the present invention;

[0034] Figure 7 Schematic diagram of the structure of the membrane electrode assembly-gas seal assembly of the present invention;

[0035] Figure 8 This is a cross-sectional view of the membrane electrode assembly-gas seal assembly of the present invention;

[0036] Figure 9This is a schematic diagram of the structure of the membrane electrode assembly of the present invention;

[0037] Figure 10 Schematic diagram of the gas seal structure of the present invention;

[0038] Figure 11 This is a schematic diagram of a first embodiment of a process for manufacturing a battery cell module according to the present invention;

[0039] Figure 12 This is a schematic diagram of a second embodiment of the manufacturing process of a battery cell module according to the present invention;

[0040] Figure 13 Schematic diagram of the bipolar plate manufacturing process of the present invention;

[0041] Figure 14 Schematic diagram of the manufacturing process of the anode separator and the outer water seal of the present invention;

[0042] Figure 15 This is a schematic diagram of the membrane electrode assembly manufacturing process of the present invention;

[0043] Figure 16 Schematic diagram of the gas seal manufacturing process of the present invention;

[0044] Figure 17 Schematic diagram of the manufacturing process of the membrane electrode assembly-gas seal assembly of the present invention;

[0045] Figure 18 Schematic diagram of the manufacturing process of the cathode separator and membrane electrode assembly-gas seal assembly of the present invention;

[0046] Figure 19 Schematic diagram of the manufacturing process of the bipolar plate and membrane electrode assembly-gas seal assembly of the present invention;

[0047] Figure 20 Schematic diagram of the battery cell and its manufacturing process of the present invention.

[0048] Explanation of reference numerals in the figure: 1, bipolar plate; 2, membrane electrode assembly-gas seal assembly; 4, external water seal; 11, anode separator; 12, cathode separator; 13, internal water seal; 21, membrane electrode assembly; 22, gas seal; 111, first opening; 112, second opening; 113, third opening; 121, fourth opening; 122, fifth opening; 123, sixth opening; 211, catalyst-coated membrane; 212, anode end gas diffusion layer; 213, cathode end gas diffusion layer; 221, structural layer; 222, adhesive layer; 223, seventh opening; 224, eighth opening; 225, ninth opening. Implementation Method

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] See also Figure 1-8 As shown, a fuel cell fully glued integrated packaged cell module includes:

[0052] The bipolar plate 1 is composed of an anode separator 11, a cathode separator 12 and an inner water seal 13. The inner water seal 13 is located between the anode separator 11 and the cathode separator 12, and the three are bonded together by gluing, screen printing, spraying, etc.

[0053] The membrane electrode assembly-gas seal assembly 2 is composed of a membrane electrode assembly 21 and a gas seal 22. The membrane electrode assembly 21 is located in the middle of the gas seal 23, and the two are bonded together by gluing, screen printing, spraying, etc.

[0054] A plurality of bipolar plates 1 and membrane electrode assembly-gas seal assemblies 2 are stacked sequentially between the anode separator 11 and the cathode separator 12, and an outer water seal 4 is glued to the anode separator 11, and a gluing mold is used to form a battery cell module;

[0055] The inner water seal 13 and the air seal 22 are made of the same colloid material and the same manufacturing process to achieve integrated packaging of the battery module.

[0056] For further information, see Figure 5-6 As shown, the front of the anode separator 11 is provided with an anode reaction area, and the front of the cathode separator 12 is provided with a cathode reaction area. The anode reaction area and the cathode reaction area are arranged correspondingly. After the back of the anode separator 11 and the back of the cathode separator 12 are glued with the inner water seal 13, a coolant flow channel is formed between the anode separator 11 and the cathode separator 12. The inner water seal 13 realizes the gluing of the anode separator 11 and the cathode separator 12, and can effectively prevent the coolant from leaking.

[0057] For further information, see Figure 6As shown, a water seal groove is provided on the anode separator 11, and the inner water seal 13 is provided in the water seal groove, and the inner water seal 13 protrudes from the end face of the water seal groove. In this facility example, the water seal groove is provided on the back side, that is, on the water surface side. The depth of the water seal groove can be set to 0.4~0.8mm, and the thickness of the inner water seal 13 can be selected to be 0.5~0.9mm. During installation, the inner water seal 13 does not protrude from the edges of the anode separator 11 and the cathode separator 12 at all, but the inner water seal 13 is higher than the water seal groove. The cathode separator 12 is placed on the inner water seal 13 protruding from the water seal groove. The anode separator 11 and the cathode separator 12 are glued together by a gluing mold to obtain a bipolar plate.

[0058] For further information, see Figure 7-9 As shown, the membrane electrode assembly 21 includes a catalyst coating membrane 211, which is a group of proton exchange membranes plus a catalyst layer at the cathode / anode ends. The catalyst coating membrane 211 is provided with an anode end gas diffusion layer 212 on the anode reaction area side and a cathode end gas diffusion layer 213 on the cathode reaction area side. The anode end gas diffusion layer 212 and the cathode end gas diffusion layer 213 are both bonded to the catalyst coating membrane 211 by gluing. Figure 9 As shown, the dotted line in the figure represents glue. In this embodiment, Figure 8 As shown, the anode end gas diffusion layer 212 located on the surface side of the anode reaction area is larger than the cathode end gas diffusion layer 213 located on the surface side of the cathode reaction area. The thickness of the anode end gas diffusion layer 212 and the cathode end gas diffusion layer 213 is about 200~400μm. When forming the battery cell module with the bipolar plate 1, they will be compressed to about 60~70% of the original thickness. The design value of the thickness of the membrane electrode group 21 is 250~500μm.

[0059] Further, such as Figure 8 and Figure 10As shown, the air seal 22 includes a structural layer 221, and the upper and lower end surfaces of the structural layer 221 are respectively provided with adhesive layers 222 that adhere to the corresponding anode separator 11 and the cathode separator 12; in this embodiment, the design value of the air seal 22 is 150~400μm, and the structural layer 221 is made of a polymer plastic material with a thickness of 150~350μm, such as a film of polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polypropylene (PP), polyphenylene sulfide (PPS) and the like. The adhesive layer 222 is respectively coated on the upper and lower surfaces of the structural layer 221. In this embodiment, the material of the adhesive layer 222 can be selected from ethylene propylene diene monomer (EPDM), silicone rubber, Fluororubber, polyolefin rubber, nitrile rubber (NBR), chloroprene rubber, etc., the thickness of the adhesive layer 222 on each side is about 10~100μm. When in use, the surface of the structural layer 221 can be a chemical coating or frosted roughness, and the shape of the air seal is cut out by a die, and the adhesive layer 222 coated on its upper and lower surfaces is adhered to the anode separator 11 and the cathode separator 12. While achieving the connection between the anode separator 11 and the cathode separator 12, it can effectively prevent the leakage of fuel gas and oxidizing gas between the anode separator 11 and the cathode separator 12; it should be noted here that the air seal 22 protrudes from the edges of the anode separator 11 and the cathode separator 12, specifically protruding 0.5~1.5 mm on each side.

[0060] For further information, see Figure 2-5 、 Figure 7 and Figure 10 As shown, at least two first openings 111, at least two second openings 112 and at least two third openings 113 are provided on the two short sides of the anode separator 11; at least two fourth openings 121, at least two fifth openings 122 and at least two sixth openings 123 are provided on the two short sides of the cathode separator 12; at least two seventh openings 223, at least two eighth openings 224 and at least two ninth openings 225 are provided on the two short sides of the gas seal 22; the first opening 111, the fourth opening 121 and the seventh opening 223 are correspondingly provided, the second opening 112, the fifth opening 122 and the eighth opening 224 are correspondingly provided, and the third opening 113, the sixth opening 123 and the ninth opening 225 are correspondingly provided.

[0061] Among them, the paired first openings 111, the paired fourth openings 121, and the paired seventh openings 223 are the inlet and outlet of the first fluid, the paired second openings 112, the paired fifth openings 122, and the paired eighth openings 224 are the inlet and outlet of the second fluid, the paired third openings 113, the paired sixth openings 123, and the paired ninth openings 225 are the inlet and outlet of the third fluid. In this embodiment, the first fluid can be the anode reaction gas hydrogen, the second fluid can be the cathode gas air, and the third fluid can be the coolant water. Of course, the above-mentioned fluids are only one implementation method and are not used to limit the scope of this application.

[0062] Furthermore, the inner water seal 13 and the outer water seal 4 are both made of colloid extracted from plants, which not only has a good sealing effect, does not damage the isolation board coating, has low equipment cost, but is also more environmentally friendly.

[0063] Furthermore, the anode separator 11 and the cathode separator 12 are both made of metal plates, and the plate thickness of the anode separator 11 and the cathode separator 12 are both selected to be 0.075~0.15mm, which can greatly reduce the volume of the battery stack and improve the power density. When in use, stainless steel, titanium or carbon is preferred, but it is not limited to stainless steel, titanium or carbon. Other materials can also be selected as long as they can meet the requirements.

[0064] Manufacturing process of fully glued integrated packaged battery cell module for fuel cell, embodiment 1

[0065] See also Figure 11 As shown, the anode separator 11, the cathode separator 12, the bipolar plate 1 and the membrane electrode assembly-gas seal assembly 2 glued with the outer water seal 4 are all independent units. The assembly specifically includes the following steps:

[0066] 1) placing the anode separator 11 glued with the outer water seal 4 on the bottom layer of the lower mold of the gluing mold, with the outer water seal 4 at the bottom;

[0067] 2) stacking a group of the membrane electrode assembly-gas seal assembly 2 and a group of the bipolar plates 1 on the anode separator 11 in a sequential manner;

[0068] 3) After the membrane electrode assembly-gas seal assembly 2 and the bipolar plate 1 are stacked, a set of the membrane electrode assembly-gas seal assembly 2 is stacked on top of the top bipolar plate 1, and then a set of the cathode separator 12 is stacked;

[0069] 4) Cover the upper mold of the gluing mold and glue the battery cell module.

[0070] In this embodiment, the battery cell module is composed of a group of anode separators 11 glued with the external water seal 4, a group of cathode separators 12, eleven groups of bipolar plates 1 and twelve groups of membrane electrode group-gas seal assemblies 2. When in use, one group of the battery cell modules can be used alone or multiple groups of the battery cell modules can be used in combination according to needs.

[0071] Manufacturing process of fully glued integrated packaged battery cell module for fuel cell, Example 2

[0072] See also Figure 12 As shown, the difference from the first embodiment is that the cathode separator 12 and the membrane electrode assembly-gas seal assembly 2, as well as the bipolar plate 1 and the membrane electrode assembly-gas seal assembly 2 are first glued together into one piece by a gluing mold. The assembly specifically includes the following steps:

[0073] Place the anode separator 11 glued with the outer water seal 4 on the bottom layer of the lower mold of the gluing mold, at this time, the outer water seal 4 is located at the bottom;

[0074] The bipolar plate 1 and the membrane electrode assembly-gas seal assembly 2 are sequentially stacked on the anode separator 11;

[0075] After the bipolar plate 1 and the membrane electrode assembly-gas seal assembly 2 are stacked, a group of assemblies of the cathode separator 12 and the membrane electrode assembly-gas seal assembly 2 are stacked;

[0076] Cover the upper mold of the gluing mold and glue the battery cell module.

[0077] In this embodiment, the battery cell module consists of a group of the anode separator 11 glued with the outer water seal 4, a group of the cathode separator 12 and the membrane electrode group-gas seal assembly 2 glued together, and eleven groups of the bipolar plates 1 and the membrane electrode group-gas seal assembly 2 glued together.

[0078] In the first and second embodiments, the gluing temperature of the battery cell module is 125-135°C, and the gluing time is 15-25 minutes.

[0079] For further information, see Figure 13 As shown, the manufacturing process of the bipolar plate 1 includes the following steps:

[0080] Placing the anode separator 11 in the lower mold of the gluing mold, with the back side of the anode separator 11 facing upward, that is, the water surface of the anode separator 11 facing upward;

[0081] The inner water seal 13 is provided in the water seal groove on the back side of the anode separator 11;

[0082] Cover the cathode separator 12 with the inner water seal 13, with the back of the cathode separator 12 facing downward, that is, the water surface of the cathode separator 12 facing downward;

[0083] Cover with the upper mold of the gluing mold and perform hot pressing and gluing.

[0084] The bonding temperature of the bipolar plate 1 is 130-180°C, and the bonding time is 2-15 minutes.

[0085] For further information, see Figure 14 As shown, the process of combining the anode separator 11 and the outer water seal 4 includes the following steps:

[0086] Place the outer water seal 4 in the groove of the lower mold of the gluing mold;

[0087] Cover the anode separator 11 on the outer water seal 4, with the back side of the anode separator 11 facing downward, that is, the water surface side of the anode separator 11 facing downward;

[0088] Cover with the upper mold of the gluing mold and perform hot pressing and gluing.

[0089] The bonding temperature of the anode separator 11 and the outer water seal 4 is 130-180°C, and the bonding time is 2-15 minutes.

[0090] For further information, see Figure 15 As shown in the figure (label a represents glue), the manufacturing process of the membrane electrode assembly 21 includes the following steps:

[0091] Apply glue a on the anode end gas diffusion layer 212;

[0092] Laminating the catalyst coating film 211 to the anode end gas diffusion layer 212 coated with glue a;

[0093] Then apply glue a on the catalyst coating film 211;

[0094] The cathode end gas diffusion layer 213 is bonded to the catalyst coating film 211 .

[0095] Among them, glue a adopts the colloid extracted from plants.

[0096] For further information, see Figure 16 As shown, the manufacturing process of the gas seal 22 includes the following steps:

[0097] treating the surface of the structural layer 221;

[0098] After the treatment, the adhesive layer 222 is applied to the upper and lower surfaces of the structural layer 221;

[0099] Use a die cutter to cut out the shape of the air seal.

[0100] For further information, see Figure 17 As shown, the manufacturing process of the membrane electrode assembly-gas seal assembly 2 includes the following steps:

[0101] Place the membrane electrode assembly 21 on the lower mold of the gluing mold, with the cathode end gas diffusion layer 213 facing upwards;

[0102] Placing the air seal 22 above the catalyst coating film 211;

[0103] Cover with the upper mold of the gluing mold and hot press glue.

[0104] The bonding temperature of the membrane electrode assembly 21 and the gas seal 22 is 100-120

[0105] ˚C for 1~2 min.

[0106] For further information, see Figure 18 As shown, the manufacturing process of assembling the cathode separator 12 and the membrane electrode assembly-gas seal assembly 2 includes the following steps:

[0107] Place the membrane electrode assembly-gas seal assembly 2 on the lower mold of the gluing mold, with the gas seal 22 facing upwards;

[0108] The cathode separator 12 is attached to the membrane electrode assembly-gas seal assembly 2 via the adhesive layer 222 on the gas seal 22. At this time, the front side of the cathode separator 12 faces downward, that is, the cathode reaction area of the cathode separator 12 faces downward;

[0109] Cover with the upper mold of the gluing mold and hot press glue.

[0110] The bonding temperature of the cathode separator 12 and the membrane electrode assembly-gas seal assembly 2 is 100-120°C, and the bonding time is 1-2 minutes.

[0111] For further information, see Figure 19 As shown, the manufacturing process of assembling the bipolar plate 1 and the membrane electrode assembly-gas seal assembly 2 includes the following steps:

[0112] 1) Placing the membrane electrode assembly-gas seal assembly 2 in the lower mold of the gluing mold, with the gas seal 22 facing upward;

[0113] 2) Laminating the bipolar plate 1 to the membrane electrode assembly-gas seal assembly 2 via the adhesive layer 222 on the gas seal 22, with the cathode separator 12 in the bipolar plate 1 facing downward, i.e., with the cathode reaction area of the cathode separator 12 facing downward;

[0114] 3) Cover the upper mold of the gluing mold and hot press gluing.

[0115] The bonding temperature of the bipolar plate 1 and the membrane electrode assembly-gas seal assembly 2 is 100-120°C, and the bonding time is 1-2 minutes.

[0116] Finally, see Figure 20 As shown, it should be noted that the anode separator 11 and the cathode separator 12 can be provided with zero sets of the bipolar plates 1 to form a battery cell monomer; the manufacturing process thereof includes the following steps:

[0117] 1) placing the anode separator 11 glued with the outer water seal 4 on the bottom layer of the lower mold of the gluing mold, with the outer water seal 4 at the bottom;

[0118] 2) stacking a set of the membrane electrode assembly-gas seal assembly 2 and a set of the cathode separator 12 on the anode separator 11;

[0119] 3) Cover the upper mold of the gluing mold and hot press gluing.

[0120] The membrane electrode assembly-gas seal assembly 2 and the cathode separator 12 can be a single body, or the two can be glued together first.

[0121] In addition, it should be noted that based on the formed battery cell monomers, it is also possible to stack several groups in sequence and then form a battery cell module by gluing.

[0122] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A fuel cell fully glued integrated packaged cell module, characterized by: include: A bipolar plate (1) is composed of an anode separator (11), a cathode separator (12) and an inner water seal (13), wherein the inner water seal (13) is located between the anode separator (11) and the cathode separator (12), and the three are bonded together by gluing; A membrane electrode assembly-gas seal assembly (2) is composed of a membrane electrode assembly (21) and a gas seal (22), wherein the membrane electrode assembly (21) is located in the middle of the gas seal (22), and the two are bonded together by gluing; A plurality of groups of bipolar plates (1) and membrane electrode group-gas seal assemblies (2) are sequentially stacked between the anode separator (11) and the cathode separator (12), and an outer water seal (4) is glued onto the anode separator (11), and a gluing mold is used to form a battery cell module; The inner water seal (13) and the air seal (22) are made of the same colloid material and the same manufacturing process to achieve integrated packaging of the battery module; The front surface of the anode separator (11) is provided with an anode reaction area, and the front surface of the cathode separator (12) is provided with a cathode reaction area. The anode reaction area and the cathode reaction area are arranged correspondingly. After the back surface of the anode separator (11) and the back surface of the cathode separator (12) are glued to the inner water seal (13), a cooling liquid flow channel is formed between the anode separator (11) and the cathode separator (12); A water seal groove is provided on the anode separator (11), the inner water seal (13) is provided in the water seal groove, and the inner water seal (13) protrudes from the end surface of the water seal groove; The inner water seal (13) and the outer water seal (4) are both made of colloid extracted from plants.

2. The fuel cell fully glued integrated packaged cell module according to claim 1, characterized in that: The membrane electrode assembly (21) comprises a catalyst coating membrane (211), and an anode end gas diffusion layer (212) is provided on the catalyst coating membrane (211) on the anode reaction region side, and a cathode end gas diffusion layer (213) is provided on the cathode reaction region side.

3. The fuel cell fully glued integrated packaged cell module according to claim 1, characterized in that: The gas seal (22) includes a structural layer (221), and the upper and lower end surfaces of the structural layer (221) are respectively provided with adhesive layers (222) that adhere to the corresponding anode separator (11) and cathode separator (12).

4. The fuel cell fully glued integrated packaged cell module according to claim 1, characterized in that: At least two first openings (111), at least two second openings (112) and at least two third openings (113) are provided on the two short sides of the anode separator (11); at least two fourth openings (121), at least two fifth openings (122) and at least two sixth openings (123) are provided on the two short sides of the cathode separator (12); at least two seventh openings (223), at least two eighth openings (224) and at least two ninth openings (225) are provided on the two short sides of the gas seal (22); the first opening (111), the fourth opening (121) and the seventh opening (223) are provided in correspondence, the second opening (112), the fifth opening (122) and the eighth opening (224) are provided in correspondence, and the third opening (113), the sixth opening (123) and the ninth opening (225) are provided in correspondence.

5. The fuel cell fully glued integrated packaged cell module according to claim 1, characterized in that: The anode separator (11) and the cathode separator (12) are both made of metal plates.

6. The manufacturing process of the fuel cell fully glued integrated packaged cell module according to any one of claims 1 to 5, characterized in that: The following steps are involved: 1) placing the anode separator (11) glued with the outer water seal (4) on the bottom layer of the lower mold of the gluing mold, at this time, the outer water seal (4) is located at the bottom end; 2) stacking the membrane electrode assembly-gas seal assembly (2) and the bipolar plate (1) in sequence on the anode separator (11); 3) After the membrane electrode assembly-gas seal assembly (2) and the bipolar plate (1) are stacked, a group of the membrane electrode assembly-gas seal assembly (2) and a group of the cathode separator (12) are stacked above the uppermost bipolar plate (1); 4) Cover the upper mold of the gluing mold and glue the battery cell module.

7. The manufacturing process of the fuel cell fully glued integrated packaged cell module according to claim 6, characterized in that: The bonding temperature of the battery cell module is 125-135°C, and the bonding time is 15-25 minutes.

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