TWI232005B - Manufacturing method of laminated type direct methanol fuel cell and laminated type direct methanol fuel cell - Google Patents

Abstract

The present invention relates to a manufacturing method of a laminated type direct methanol fuel cell, including the following steps of: manufacturing to form flow channel/solution channel layer using the material of printed-circuit board, manufacturing a mass-transfer electrolyte layer; manufacturing a control circuit layer using manufacturing process of printed-circuit board; integrating the produced flow channel/solution channel layer, the mass-transfer electrolyte layer and the control circuit layer to form a laminated type direct methanol fuel cell.

Description

1232005 V. Description of the invention (1) Technical field to which the invention belongs The present invention relates to a method for manufacturing a direct methanol fuel cell, and in particular, it relates to a method for manufacturing a laminated integrated direct methanol fuel cell by using a printed circuit board process technology Method, and a direct methanol fuel cell made by implementing the method of the present invention. Prior art

Taiwan Invention Patent Application No. 9 0 1 2 9 6 6 5 "Direct methanol fuel cell system and manufacturing method including an integrated methanol sensor" Although the direct methanol fuel cell system and manufacturing method have been taught, there are still the following The lack of Chen: (a) The fuel cell itself does not include the electromechanical design and cannot be integrated into a design. (B) The design of the microfluidic pipeline will cause the phenomenon that processing is not easy, and mass production is difficult. (C) It is impossible to determine the concentration of methanol in water before and after the reaction, and there is no correction mechanism. (D) Poor design of the cathode reaction zone will not allow fresh air or oxygen from the outside to enter the cathode reaction zone for reaction due to the internal temperature and pressure.

Taiwan Invention Patent Application No. 8 8 2 1 0 2 4 6 "Flat-type fuel cell and its battery substrate structure", although the structural skills of the flat-type fuel cell have been taught, there are still the following defects: (A) The fuel cell itself does not include an electromechanical design and cannot be integrated into a design. (B) Once the fuel has reacted, the reaction must be stopped after the fuel is consumed 'cannot be controlled. (C) Poorly designed cathode reaction zone 'Because of the internal temperature and pressure, fresh air or oxygen from outside cannot enter the cathode reaction zone for reaction. (D) The water generated after the reaction is not treated

Page 5 1232005 V. Description of Invention (2) Principle. Although USP5, 631, 0 9 9 "Surface Replica Fuel Cell" has taught related technologies for fuel cells, there are still the following defects: (a) The structure is complex and difficult to manufacture. (B) Removal of reaction products is not easy, for example, water reaction products are not easy to exclude. (C) The required supply of air or oxygen is not easy. The inventor of the present invention, in view of the lack of the above-mentioned conventional techniques, is eager to invent improvements, and has invented a process technology using a printed circuit board to realize the production of a laminated integrated direct methanol fuel cell. SUMMARY OF THE INVENTION The main object of the present invention is to provide a method for manufacturing a laminated integrated direct methanol fuel cell, which utilizes a process technology of a printed circuit board to manufacture a laminated integrated direct methanol fuel cell. Another object of the present invention is to provide a laminated integrated direct methanol fuel cell that meets the characteristics of light, thin, short, and small. In order to achieve the above object of the present invention, the present invention provides a method for manufacturing a laminated integrated direct methanol fuel cell including the following steps: using a material of a printed circuit board to fabricate a flow channel groove / solution tank layer; making a mass transfer electrolyte layer; The printed circuit board manufacturing process is used to produce the control circuit layer; the flow channel / solution tank layer, the mass transfer electrolyte layer, and the control circuit layer, respectively, are connected to a laminated integrated direct methanol fuel cell.

(3) 1232005 V. Description of the invention In addition, the layered integrated printed electrical control circuits and other layers are directly layered, and the layers are laminated using the printed electrolyte layer and the control electrical process. The material layer of the methanol fuel circuit board is a printing tank / solution tank layer, and an alcohol fuel cell can be produced separately. In order to achieve the cost of the hair-type direct-alcohol brush circuit board material bonding; between the mass transfer circuit layer; this is made, and with the above-mentioned purpose, the present invention provides a product pool including the flow channel groove / solution tank layer system It is made by shelling; mass transfer electrolyte layer; circuit board manufacturing process; it; a mass transfer electrolyte layer and a control circuit layer come out, and then each layer is connected to a laminated layer to integrate the above purpose, and the present invention provides a The fuel cell includes: a flow channel tank / solution tank layer material is produced and formed, and is interposed with a mass transfer solution layer system in the flow channel tank / solution tank layer control circuit layer using a mass transfer electrolyte layer of a printed circuit board. In order to enable those skilled in the art to understand the purpose, features, and effects of the present invention, the present invention will be described in detail through the following specific embodiments and the accompanying drawings, and the manufacturing of the present invention will be described in the following embodiments. Method 10 is used to manufacture laminated integrated direct 曱 = fuel cell 20, and implements the manufacturing method i 〇 of the present invention, a large part = materials based on printed circuit board (PCB) cost Obviously easy to manufacture

1232005 V. Description of the invention (4) The advantages and economical production costs are also in line with current product trends. The method 10 of the present invention does not need to change the characteristics of the original direct methanol fuel cell at all, and it is easy to produce a laminated integrated direct methanol fuel cell 20 that meets the characteristics of lightness, thinness, shortness, and smallness. This applies to small portable power products such as mobile phones, personal digital assistants (PDAs), smart phones (SMART Phones), e-books, tablet PCs, and notebook computers ( Note Book PC) and so on, the present invention will give it great convenience.

The first figure shows a flowchart of a method for manufacturing a laminated integrated direct methanol fuel cell according to the present invention. Each step included in the method will be described below. Step (1 0 1) is to use the material of the printed circuit board to form the shape of the outflow channel groove / solution tank layer 2 0 1. Please refer to the second figure to show the structure diagram of the runner groove / solution groove layer 20 made by the method of the present invention. The material of the printed circuit board used in step (1 0 1) can break glass fiber Substrate (FR4), which is the method for realizing step (101) of the present invention, is prepared by using a hot press, laser forming machine, CNC forming machine, etc. to form the organic glass fiber substrate (FR4) into a depth The predetermined depth is used as the flow channel groove 201a, and the predetermined depth of the flow channel groove 201a can be between 10 mm and 100 mm. Then use a hot press, laser =, C N C molding machine and other machinery and equipment to form a solution tank 20

Adhesive medium is adhesive channel groove 2 0 1 a and solution tank 2 〇 丨 b, after lamination defect < after, close 3; machine: for lamination, the operating environment of lamination can be: ς :: Hanzhi at temperature Compression between 13 (TC ~ 20 (TC) and pressure between 5 ... 50 kg / cm22. The adhesive medium in step (101) can be

Page 8 1232005 V. Description of the invention (5) --- Use epoxy resin to mix and pull-Step (103) is the adhesive medium of detachment and fiber (PrePreg) ° The three pictures show the use of the hair, Mingzhu / quality Electricity transfer 4 decomposed layer 203. Please refer to the hibiscus diagram, the structure of the mass transfer electrolyte layer 2 0 3 produced by the Taiyan Mingdan method, and the method of implementing step (103) is the proton exchange membrane == 1 = separately in the coating After the platinum (ft) of predetermined concentration on the cloth (coat ing) and platinum (pt) / ruthenium (Ru) are pre-rolled, the material of the parent film can be selected by DuPont Nafion (DoPont Naf1). 〇n) materials, and coating (coating) means can be performed by means of southern molecular polymer printing (pollyide printing). For example, a metal vacuum evaporation method is used to evaporate platinum (pt) with a predetermined concentration between 1 and 5 mg / cm2, and evaporate platinum (Pt) / ruthenium with a predetermined concentration between 100 mg / cm2. (Ru). Another example is to use metal vacuum sputtering) or metal electroless plating to complete the above-mentioned coating operations of platinum (Pt) and platinum (pt) / ruthenium (Ru) with a predetermined concentration. Then, screen printing is used to print the toner, Teflon, Sol vent and other mixtures, or plate printing is used to brush the toner and Teflon. And solvent (soivent), etc., even if the production of the mass transfer electrolyte layer 203 is completed. Through the manufacturing method of (103), the mass transfer electrolyte layer 203 can include the fuel cell unit 203a. The π m step (1 05) is to use a process of a printed circuit board to make a control layer 2 05. Please refer to the fourth figure to show the structure diagram of the control circuit layer 205 made by the method of the present invention. The specific implementation step (105) of the present invention

1232005

V. Description of the invention (6) Means can be obtained by drilling holes in the range of about 10 ~ 50U inches (lnch), drilling the whole plate, and then plating the film, and then plating. 2. After developing the circuit U 20 inch gold, the circuit is composed of a circuit composed of 205b, and 4 lines are lined up. For example, a plurality of SMT electronic components are etched out of the circuit and printed. The control circuit layer, such as the soldering prevention time, the wooden electrical circuit, and the like, are designed to complete the control circuit layer 20; \, and finally the circuit test 'the control circuit layer 20, this is OK. The printed circuit board is produced through step (105). Simultaneously control the printed circuit board on the electrical surface, or multiple fuel cell units on the multilayer 203 = 2 0 5 In order to match the mass transfer electrolyte layer control circuit layer 2 0 5 can be formed, the bonding in step (107), The current collection line 2 0 3 a of 2 0 3 a, and the thunder knife corresponds to the parent fuel cell unit. Each fuel cell unit 2 0 3 a ^ I ^ Road 2 0 5 & is the corresponding step ( 107) Department will be divided into ^ area ^ 20 ^. 2 (Π, mass transfer electrolyte layer 2 0 3, ^ channel groove / solution tank layer synthesis laminated integrated direct methanol combustion; the circuit layer 2 0 5 and other layers are made, and the diagram shows the production using the method of the present invention Zhi = 配合 f See the structural diagram of the fifth battery 20 for details. 纟 Invention specific 2 ^ Direct methanol combustion system uses adhesive medium to print or film stack (1 $ μ 1 = 7). The tank layer 20 is a mass transfer electrolyte layer. 2 0 3, with two = " ShiJiang & Road Trough / Solution Tianren® and CaiGong circuit layer 20 5 counted as the sound of fold-up, and then use a hot press to compress after lamination, " 2. Laminated and integrated direct methanol fuel cell 2 0. The operating environment can be produced in the next step. The hot press can be set at

疋 隹 Probability is between 8 (TC ~ 2 0 0〇C

1232005 V. Description of the invention (?) Ϊ́ΐϋ Pressing pressure between 2 ~ 50kg / cm2, and in the medium. 〇7) Adhesive medium can use epoxy resin (Epoxy) Adhesion Furthermore, the method of the present invention is separately produced: mass transfer electrolyte layer 203, and control holes and fixed holes are made in each layer (not shown) One layer of 蚪, fixed holes, the flow channel groove / solution tank t, no), 耩 from each layer of the solid circuit layer 20 5 and other three layers, using the printed shell electrolyte layer 203, and adhesive bonding and other bonding means It is made by joining 6, screwing, or gluing through the step (101) of the present invention. , 2 01, which provides the outline of the fuel cell, the flow channel tank / solution tank layer performance, and the function of the anode reaction zone. 'Fine, :: Control circuit layer derived from the work of the storage tank area of material and water. In addition to having 2 * 5 production and wiring lines created in step (105) of the invention, to provide electromechanically controlled warm SMTt The function of the 205b cell cathode reaction zone. In addition to its functions, it also provides fuel power_ 实 ΐ ί Ming: ί layered integrated direct methanol fuel cell 2 〇 At least includes: runner channel and liquid mixing tank layer, and also the material of the material is made into shape; quality Electrolyte households 203 and Tun Road Board Road Layers 205 are using printed circuit board manufacturing processes, such as: electric layer 205 and other layers can be made / knives, n ^ road integrated direct methanol fuel cell 2〇. The layers are then interfaced into a stacked layer. Implementation of the invention ^ = Six-layer integrated direct methanol fuel 20 at least includes: Liuxi Qi & liquid tank layer 201 uses a printed circuit board

1232005 V. Description of the invention (8) The material is made and formed, and it is joined with the mass transfer electrolyte layer 203; 'The mass transfer electrolyte layer 2 0 3 is sandwiched between the flow channel groove / solution tank layer 2 0 1 and the control circuit 'Between the circuit layer 205; the control circuit layer 205 is produced using a printed circuit board manufacturing process, and is bonded to the mass transfer electrolyte layer 203. The method 10 of the present invention and the laminated integrated direct methanol fuel cell 20 have the following advantages: 1. The integrated manufacturing cost and material cost are low, which is in line with economic effects. 2. It can be applied to mass production process with standardization. 3. Low requirements for the coordination of peripheral systems. 4. It can be used for a long time. 5. Methanol fuel is easy to obtain, and it is corrosion-resistant, water-proof and gas-proof. 6. With environmental protection characteristics. 7. Light and thin space characteristics. The material of the printed circuit board used in the present invention is disclosed with an organic glass fiber substrate (FR4), and the present invention is not limited to the organic glass fiber substrate. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and retouches without departing from the spirit and scope of the present invention. Retouching is still within the scope of the patent application attached to the present invention.

Page 12 1232005 Brief Description of Drawings The first drawing shows a flowchart of a method for manufacturing a laminated integrated direct methanol fuel cell according to the present invention. The second figure shows a structure diagram of a runner groove / solution groove layer produced by the method of the present invention. The third figure shows the structure of a mass transfer electrolyte layer produced by the method of the present invention. The fourth figure shows the structure of a control circuit layer made by the method of the present invention. The fifth figure shows a structural diagram of a laminated integrated direct methanol fuel cell manufactured by the method of the present invention. Description of drawing number 10 Manufacturing method 20 Multi-layer integrated direct methanol fuel cell 1 0 1, 1 0 3, 1 0 5, 1 0 7 Step 201 Flow channel groove / solution tank layer 201a Flow channel groove 201b Solution tank 2 0 3 Mass transfer electrolyte layer 2 0 3a Fuel cell unit 2 0 5 Control circuit layer 2 0 5a Collector line 2 0 5 b Electronic component 2 0 5 c Hollow-out area

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Claims (1)

1232005 VI. Scope of patent application 1. A method for manufacturing a laminated integrated direct methanol fuel cell, including the following steps: (A). Using the material of the printed circuit board to make a first-rate track / solution tank layer; (B) Make a mass transfer electrolyte layer; (C). Make a control circuit layer using the printed circuit board manufacturing process; (D). Make the flow channel groove / solution tank layer, the mass transfer electrolyte layer, And the control circuit layer and other layers are connected to form a laminated integrated direct methanol fuel cell. 2. The manufacturing method described in item 1 of the scope of patent application, wherein this step The material of the printed circuit board (A) is an organic glass fiber substrate (FR4). 3. The manufacturing method described in item 2 of the scope of patent application, wherein the step of forming the flow channel groove / solution groove layer in the step (A) is by using a hot press and / or a laser forming machine and And / or a CNC molding machine, forming a groove of a predetermined depth from the organic glass fiber substrate as the flow channel groove, and then forming the groove by using a hot press and / or a laser molding machine and / or a CNC molding machine. In the solution tank, an adhesive medium is finally used to adhere the flow channel tank and the solution tank, and after being superposed, they are sent to a hot press for compression bonding. 4. The manufacturing method according to item 3 of the scope of patent application, wherein the predetermined depth is between 1 and 10 mm. 5. The manufacturing method as described in item 3 of the patent application scope, wherein the adhesive medium is an epoxy resin mixed glass fiber (prepr eg) adhesive medium. 6. The manufacturing method as described in item 3 of the scope of patent application, wherein the warp is superposed 1 Page 14 1232005 VI. After applying for the scope of the patent, the step of sending to the hot press for lamination is to set the hot press at a temperature u between 130 ° (: ~ 2 0 ° (: and the pressure medium). Lamination is performed by a hot press between 5 and 501 ^ / (: 1112.) 7. The manufacturing method described in item 1 of the scope of patent application, wherein the step (B) of the mass transfer electrolyte layer is The step is to apply a proton exchange membrane and a polymer material to a predetermined concentration of platinum (Pt) and a predetermined concentration of platinum (Pt) / ruthenium (Ru) respectively on a coating, and then use The gluing means forms the proton exchange membrane, a polymer catalyst layer and a carbon paper / carbon cloth to form a mass transfer electrolyte layer. 8. The manufacturing method as described in item 7 of the patent application scope, wherein the proton exchange membrane system comprises a DuPont Nafion (DoPont Nafion) material. 9. The manufacturing method described in item 7 of the scope of patent application, wherein the predetermined concentration of platinum (Pt) is between 1 and 5 mg / cm2. The manufacturing method described in item 7 of the patent scope, wherein the predetermined concentration of platinum (Pt) / ruthenium (Ru) is based on Between 1 and 10 mg / cm 2. 1 1. The manufacturing method described in item 1 of the scope of patent application, wherein the control circuit layer is a double-sided printed circuit board. 1 2. As item 1 of the scope of patent application The manufacturing method, wherein the control circuit layer is a multilayer printed circuit board. 13. The manufacturing method according to item 1 of the scope of patent application, wherein the control circuit layer includes at least a printed circuit board, and At least one or more electronic components on the printed circuit board. 1 4. The manufacturing method according to item 1 of the scope of patent application, wherein the bonding step of step (D) is using an adhesive medium for printing or film lamination hand 1232005 6. In the scope of the patent application, the flow channel tank / solution tank layer, the mass transfer electrolyte layer, and the control circuit layer are laminated together, and then laminated by a hot press to compress them. The multilayer integrated direct methanol fuel cell was fabricated. 15. The manufacturing method according to item 14 of the scope of patent application, wherein the adhesive medium is an epoxy resin (E ρ ο X y). 16. The manufacturing method as described in item 14 of the scope of patent application, wherein the hot press is set at a temperature between 80 ° C ~ 180 ° C and a pressure between 2 ~ 50 kg / cm 2 between. 17. The manufacturing method as described in item 1 of the scope of patent application, further comprising the following steps: when the three layers such as the flow channel tank / solution tank, the mass transfer electrolyte layer, and the control circuit layer are separately produced, and Each layer is made with at least one or more fixing holes, and through the fixing holes of each layer, the flow channel groove / solution tank, the mass transfer electrolyte layer, and the control circuit layer etc./three layers are made by coupling bonding, screw bonding, Or one of the joining means, such as adhesive bonding, join together. 1 8. —Multilayer integrated direct methanol fuel cell, including: first-class track tank / solution tank layer, which is made of printed circuit board materials; a mass transfer electrolyte layer; a control circuit layer, which uses printed circuits Each layer of the flow channel tank / solution tank layer, the mass transfer electrolyte layer, and the control circuit layer can be produced separately, and then each layer is combined into the laminated integrated direct methanol fuel. battery. 1232005 VI. Scope of patent application 1 9. A laminated integrated direct methanol fuel cell, including: first-class track tank / solution tank layer, which is made of printed circuit board materials and bonded to a mass transfer electrolyte layer; The mass transfer electrolyte layer is sandwiched between the flow channel tank / solution tank layer and a control circuit layer; the control circuit layer is produced by a process of a printed circuit board and is bonded to the mass transfer electrolyte layer. Page 17