TWI286398B - Series/parallel connection forming method of fuel cell units - Google Patents

Abstract

The present invention provides a series/parallel connection forming method of fuel cell units. The first step is to provide a cathode substrate, an anode substrate, and at least one membrane electrode assembly. The second step is to form at least one cathode current collection circuitry and at least one first electric connection point on the same surface as the cathode substrate, in which each cathode current collection circuitry corresponds to the cathode end of each membrane electrode assembly and each first electric connection point is electrically connected with a corresponding cathode current collection circuitry so as to manufacture a cathode collection circuit board. The third step is to form at least one anode current collection circuitry and at least one first second connection point on the same surface as the anode substrate, in which each anode current collection circuitry corresponds to the anode end of each membrane electrode assembly and each second electric connection point is electrically connected with a corresponding anode current collection circuitry so as to manufacture an anode collection circuit board. The fourth step is to stack, from top to bottom, the cathode collection circuit board, the membrane electrode assemblies, and the anode collection circuit board into a monolithic structure so that each fuel cell unit comprises a cathode current collection circuitry, a membrane electrode assembly, and an anode current collection circuitry and each first electric connection point contacts with a corresponding second electric connection point independently so as to allow the fuel cell unit to be electrically connected in series or in parallel with another fuel cell unit.

Description

1286398 I, V. DESCRIPTION OF INVENTION A) Technical Field of the Invention The present invention relates to a method of manufacturing a fuel cell, and more particularly to a method for forming a series/parallel connection of a fuel cell unit, thereby being able to produce a variety of different Fuel cell 0 with supply voltage and supply current specification requirements [Firstly, only metal-electrical layer circuits are used in the art, and parallel anodes are guided into lead-in-demand producers, the former technically known structure, the collector layer and Yuli The functions of the net and other hands are light and thin, and there is no other. The lines are all outside the line through the through-hole line of the wire. It is possible to use electricity or the stone system. However, the control and short-practice general pool is Guan made ink, can know the line, small line. Through the conduction path, the cathode path, or the road, the via hole is made and the via hole leads to the membrane electric manufacturing technology, and the collector type is manufactured by the electrolyte type or the collector metal net, etc., and some are used for manufacturing design. The fuel cell printed circuit board hole mode conducts the current collecting line and the anode current collecting line and the membrane electrode assembly, so that the destruction of the pole group of the manufacturing process is the technical content of the fuel cell layer as the main axis, the structure of the layer and other technical contents. The means, although using graphite or layers, and also capable of exerting the means of collecting electrical layers, series and parallel connection of its congenital obstacles, manufacturing requirements, the fuel cell of the conventional technology, its string. In this way, the reshaped circuit and the cathode current collecting line are first superposed, whether the film electrode group is superposed. Both of these practices increase production costs and reduce high temperature or reaction solvents, which in turn affect fuel cell efficiency.

Page 6 12.86398 Λ, invention description (2) Yes. • The inventors of the present invention have invented a prior art improvement based on the above-described fuel cell, and have invented a series/parallel method for a fuel cell unit that can be flexibly and easily manufactured. A variety of fuel cell devices that supply voltage and supply current. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a series/parallel method for a fuel cell unit, which utilizes a printed circuit board process technology to fabricate a fuel cell device capable of meeting various supply voltages and supply currents. Another object of the present invention is to provide a series/parallel method for a fuel cell unit which can be fabricated to meet various specifications of various supply voltages and supply currents without using a Via hole. In order to achieve the above object of the present invention, the present invention provides a method for forming a series/parallel connection of a fuel cell unit, comprising the steps of: (a) providing a cathode plate, an anode substrate, and at least one membrane electrode assembly; Forming at least one cathode current collecting line and at least one first electrical contact on the same surface of the cathode substrate, wherein each cathode current collecting line corresponds to a cathode end of each of the membrane electrode groups, And each of the first electrical contacts is electrically connected to a corresponding one of the cathode current collecting lines to form a cathode current collecting plate; (c) forming at least one anode set on the same surface of the anode substrate wire

Page 7 1286398 I V. Description of the invention (3) Road and at least one or more second electrical contacts, wherein each anode is collected. The line system respectively corresponds to the anode end of each membrane electrode group, and each second electrical connection The point system is electrically connected to a corresponding anode current collecting line to form an anode current collecting plate; (d). The cathode current collecting plate, the film electrode group and the anode current collecting plate are laminated from top to bottom. Stacked in a single piece _, wherein each fuel cell unit comprises a cathode current collecting line, a membrane electrode group and an anode current collecting line, wherein each of the first electrical contacts is respectively associated with a corresponding second electrical contact Forming a contact such that the fuel cell unit is electrically and/or electrically connected in series with another fuel cell unit. To enable those skilled in the art to understand the objects, features and functions of the present invention, The present invention will be described in detail with reference to the accompanying drawings, which are illustrated as follows: [Embodiment] The first figure shows a flow chart of a method for forming a serial/parallel connection of a fuel cell unit of the present invention, and the second figure shows An exploded view of the fuel cell apparatus of the embodiment of the process of the invention, and the third figure shows a second sectional view of the fuel cell of FIG. The method for forming the serial/parallel connection of the fuel cell unit of the present invention includes the steps (101), (103), (105) and the step (107), respectively, which are described below. The step (1 0 1) is to provide a single cathode substrate 201, a single anode substrate 301, and at least one or more membrane electrode groups 40. As the substrate of the cathode substrate 201 and the anode substrate 301 of the present invention, for example, a substrate of a printed circuit board can be used. Membrane electricity of the invention

Page 8 1286398 % V. Description of the invention (4) The pole group 40 can be, for example, a membrane electrode assembly using a solid fuel as a fuel, or a membrane electrode assembly using a gaseous fuel as a fuel, or a liquid state A membrane electrode assembly in which fuel is used as a fuel. - Step (103) is formed on the same surface of the cathode substrate 201 to form at least one or more cathode current collecting lines 203 and at least one or more first electrical contacts 205. Each of the cathode collector lines 203 corresponds to the cathode end of each of the membrane electrode sets 40, and each of the first electrical contacts 200 is electrically connected to a corresponding one of the cathode collector lines 206. After completion of the step (103), a piece of the cathode current collector plate 20 is produced. The step (105) is formed on the same surface of the anode substrate 301 to form at least one or more anode current collecting lines 3 0 3 and at least one or more second electric contacts 3 0 5 . Each of the anode current collecting lines 3 0 3 corresponds to the anode end of each of the membrane electrode groups 40, and each of the second electrical contacts 300 is electrically connected to a corresponding one of the anode collecting lines 303, respectively. After the completion of the step (105), a sheet of the anode current collector plate 30 is produced. In the step (103) and the step (105), the first electrical contacts 2 0 5 and the second electrical contacts 305 are formed, for example, by evaporation or sputtering. After printing, pasting, or forming a conductive layer on the cathode substrate 210 and the anode substrate 310, laser cutting or etching is performed, and the resistive metal conductive material is used by one of the above means. Metal conductive materials are formed on the surfaces of the cathode substrate 201 and the anode substrate > 301, respectively. Similarly, the specific means for forming the cathode current collecting lines 203 and the anode collecting lines 303 may also be performed by evaporation, sputtering, printing, pasting, or on the cathode substrate 20 1 and the anode. Substrate

1286398 V. INSTRUCTION DESCRIPTION (5) After forming a conductive layer on the first layer, laser cutting or etching is performed, and one of the above means is used as an implementation means. Furthermore, in the steps (103) and (105), the present invention can further form the first wires 207 and the second wires 307 on the cathode substrate 201 and the anode substrate 301, respectively, and each of the first wires The wire 207 connects the corresponding first electrical contact 205 with the corresponding cathode current collecting line 203, and each of the second wires 307 connects the corresponding second electrical contact 205 with the corresponding anode collecting line 303. Similarly, the specific means for forming the first wires 207 and the second wires 307 can also be performed by evaporation, sputtering, printing, pasting, or on the cathode substrate 201 and the anode substrate 301. After the conductive layer is formed first, laser cutting or etching is performed, and one of the above means is used as an implementation means. In the step (105), the cathode current collecting plate 20, the film electrode assembly 40 and the anode current collecting plate 30 are stacked from top to bottom to form a one-piece structure in close contact with each other. After the adhesion is completed, each fuel cell unit 401 includes a cathode current collection line 203, a membrane electrode assembly 40, and an anode current collection line 303. At the same time, after the bonding is completed, each of the first electrical contacts 250 can be electrically connected to the corresponding second electrical contacts 305, thereby allowing the fuel cell unit 401 to be connected in series with another fuel cell unit 401. / or parallel electrical connection. Further, in the step (105), the present invention can also utilize the spacer 60 to reinforce the sealing effect of the one-piece structure which is adhered to one piece. The fuel cell device 50 shown in the second and third circles of the present invention specifically discloses how to utilize the first electrical contacts 205 and the second

Page 10 1286398

I. INSTRUCTION DESCRIPTION (6) Electrical contacts 305 are used to connect the individual fuel cell units 401 in series. The fourth figure shows an exploded view of another fuel cell device implemented in accordance with the method of the present invention. The fuel cell device 50 of the fourth figure specifically discloses how to use the first electrical contacts 205 and the second electrical contacts 305 to connect the respective fuel cell units 401 together. The exemplary embodiment of the fuel cell device of Figures 2 through 4 is primarily intended to be a detailed description of the method 10 of the present invention and is not intended to limit the invention. It is within the scope of the present invention to use the method 10 of the present invention to connect the individual fuel cell units 406 of the fuel cell device 50 in series, in parallel, or a combination thereof. The method of forming a series/parallel connection of the fuel cell unit of the present invention has the following advantages: 1. The integrated manufacturing cost and material cost are low, and the economic effect is met. 2, can be applied to mass production processes, with standardization. 3. The requirements for cooperation with peripheral systems are low. 4. Has a lower line impedance. 5. Light and small space characteristics. 6. Meet the specifications of various supply voltages and supply currents. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The retouching is still within the scope of the patent application attached to the present invention.

Page 11 1236398 Flow of the French side of the union / string forming of the yuan single pool electric fuel burning 1 Ming Mingfa said this list shows the simple i-shaped figure S Figure 1 t map of the installation of the pool of electricity burning The law was issued by the Ming Dynasty. Figure 2, Figure 2: The surface of the pool is ignited. Figure 2 shows the first diagram. Figure 3 - The first battery is ignited. 1 The other implementation method is the same as the method. The four parts of the diagram are shown in the diagram. [Main component symbol description] ίο Formation of serial/parallel method 20 Cathode collector plate 30 Anode collector plate 4 0 Membrane electrode group 50 Fuel cell device 60 Shim 1 0 1. 1 0 3, 1 0 5, 1 0 7 Step 201 Cathode substrate 2 0 3 Cathode collector line 2 0 5 First electric contact 2 0 7 First wire 30 1 Anode substrate 3 0 3 Anode current collecting line 3 0 5 Second electrical contact

Page 12 1286398 Schematic description 3 0 7 Second conductor -40 1 Fuel cell unit

Claims (1)

Χ7日修(气)本本_案号94104157 Λ_Μ 1286398 曰r- ____ $, Patent Application Area I A method for forming a series/parallel connection of a fuel cell unit, comprising the steps of: b: step (a) providing a cathode substrate, An anode substrate, the above-mentioned membrane electrode assembly; , to >, a (b)· on the same surface of the cathode substrate, forming at least a cathode current collecting line and at least one first electrical contact, a basin The above cathode current collecting circuits each correspond to each of the first electrical contact points of each of the membrane electrode groups and the corresponding one of the cathode current collectors 2, and are connected to each other to form a cathode current collecting plate. Electrical system (c) - on the same surface of the anode substrate, formed to ~ anode current collecting line and at least one or more second electrical connections - more than one male collecting circuit line corresponding to each film Each of the second electrical contacts of the electrode group is respectively connected to a corresponding anode current collecting end, and each is connected to form an anode current collecting plate; the line is electrically (d) · top to bottom Yin Collector plates, the membranes: plate stacking: stacked - single piece of material ... each, - with anode set one, cathode collector line, one membrane electrode group and one ί pole = 兀 system package,, Each of the first electrical contacts is: wire contact, 'so that the fuel cell unit is electrically connected to another fuel cell ΐ = = and / or in parallel. % forming a series 2·# t ft (4) IS 15 fi string / > (1) further comprising: wherein the step is on the cathode substrate and the at least one or more first wires are formed on the cathode lines, 1 each being first; j face: v green system will be The electric circuit is connected to a series/parallel method, and the first electric contact corresponding to the step and the corresponding cathode set 3 are formed according to the first aspect of the patent application. (c) further includes: The anode current collecting lines are formed to form at least one or more second wires, and each of the second electric contacts corresponding to the surface of the anode and the corresponding anode current collecting wire: JJ = not to be 4. as claimed in claim 1 The substrate forming the string/bridge cathode substrate is one of a printed circuit board and a ceramic two-two-two adhesive substrate. a board substrate and a polymer plastic string/parallel method, wherein the ceramic substrate and the polymer plastic string/parallel method, wherein the material and a non-metal conductive material 5. The substrate for forming an anode substrate as described in claim 1 is one of a printed circuit board and a rubber substrate. 6. The material forming the first electrical contact as described in claim 1 is one of a metallic conductive material. 7. The method of forming a series/parallel method according to claim 1, wherein the material of the second electrical contact is one of a metallic conductive material and a non-metallic conductive material. 8. The method of forming a series/parallel method according to claim 1, wherein the step of forming the first electrical contacts in step (b) is by evaporation, sputtering, printing, pasting, and The cathode substrate and the anode substrate are first formed with a Φ conductive layer and then subjected to laser cutting or etching to form a conductive material into the first electrical contacts. 9 · Forming a series/parallel method as described in claim 1 of the patent scope, wherein the step Page 15---- 2007.06. 26.015 1286398 Case No. 94104157_Yearly Revision _ VI. Application for the scope of the patent (C) The steps of forming the second electrical contacts are by evaporation, sputtering and printing. And bonding, and forming a conductive layer on the cathode substrate and the anode substrate, and then using a laser cutting or etching method to form a conductive material into the second electrical contacts. A method of forming a series/parallel method as described in claim 1, wherein the fuel cell unit uses a solid fuel. 11. The method of forming a series/parallel method according to claim 1, wherein the fuel cell unit uses a gaseous fuel. 1 2. The method of forming a series/parallel method according to claim 1, wherein the fuel cell unit uses a liquid fuel. Page 16 2007.06. 26.016