CN100561781C - Be applied to the manufacture method of the wave type collector plate in the fuel cell - Google Patents
Be applied to the manufacture method of the wave type collector plate in the fuel cell Download PDFInfo
- Publication number
- CN100561781C CN100561781C CNB2006101085055A CN200610108505A CN100561781C CN 100561781 C CN100561781 C CN 100561781C CN B2006101085055 A CNB2006101085055 A CN B2006101085055A CN 200610108505 A CN200610108505 A CN 200610108505A CN 100561781 C CN100561781 C CN 100561781C
- Authority
- CN
- China
- Prior art keywords
- collector plate
- layer
- fuel cell
- current collection
- conductive layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides a kind of manufacture method that is applied to the wave type collector plate in the fuel cell; at first; one anticorrosive and oxidation resistant current collection layer is provided; then on the first surface of this current collection layer, cover a shielding film; then on the second surface of this current collection layer, electroplate and form a conductive layer; then on this conductive layer, cover a dry film; wherein this dry film defines the shape and size of this collector plate; then etch away this conductive layer that is not covered by this dry film; then remove this dry film and this shielding film; then on the second surface of this current collection layer, attach a protective layer; to protect this conductive layer, then carry out one and cut technology, form this collector plate; at last this collector plate is struck out wavyly, make it possess the runner function.
Description
Technical field
The invention relates to the collector plate manufacture method that is integrated in the fuel cell field on the analog board (flow board), particularly possess high methanol tolerance, high mechanical properties, preferable fuel flow the undaform analog board and the collector plate manufacture method that is integrated on the analog board of usefulness and low processing cost relevant for a kind of.
Background technology
As have the knack of known to the person of this field, direct methanol fuel cell (Direct Methanol Fuel Cell abbreviates DMFC as) is that a kind of utilization dilution methanol aqueous solution acts as a fuel, and chemical energy is converted to the Blast Furnace Top Gas Recovery Turbine Unit (TRT) of electric power by electrochemical program.Compare with traditional generation mode, direct methanol fuel cell has low pollution, low noise, high-energy-density and higher advantages such as energy conversion efficiency, be forward-looking clean energy, applicable field comprises household system, UPS, electronic product, means of transportation, military equipment, space industry etc.
The operation principles of direct methanol fuel cell is to carry out oxidation reaction with methanol aqueous solution at the anode catalyst layer, produces hydrogen ion (H
+), electronics (e
-) and carbon dioxide (CO
2), wherein hydrogen ion is passed to negative electrode via electrolyte, and electronics then is passed to negative electrode via external circuit, and the oxygen that supply with cathode terminal this moment can carry out reduction reaction at the cathode catalysts layer with hydrogen ion and electronics, and produces water.Fuel cell generally all is made up of a plurality of elementary cell.Because the voltage that each elementary cell can provide is very little, many elementary cells of therefore must connecting when using are to reach the output of necessary operations voltage.
In the modular structure of direct methanol fuel cell assembly, collector plate and analog board have been generally included, playing the part of different important roles respectively, wherein collector plate is responsible for collecting the electronics that electrochemical reaction produces, and analog board then is to be responsible for distribution and the control that fuel flows.Past, all focus on the design of runner in the part of analog board, make fuel can pass through runner smoothly, and flow into mea (membrane electrodeassembly, MEA).
Known analog board is normally with graphite or with glass mat, as FR4, FR5, Deng material as base material, and need with computerization Numerical Control (Computer Numerical Control, abbreviating CNC as) the lathe milling technology is made, its shortcoming is the low and processing cost height of the CNC lathe milling production capacity of making, and known be general not good, the neither volume production scale and universalness application that is beneficial to fuel cell of all factors such as volume is big again of the analog board engineering properties of base material with materials such as graphite, FR4 or FR5.
Hence one can see that, good analog board designs except the chemical corrosion of the gas-liquid fuels of selecting necessary anti-fuel cell in material and reactant thereof, still need have high mechanicalness, low processing cost and can quick mass-produced requirement, no matter and known analog board is all having further improvement and improved space on the material or on manufacture method.
Summary of the invention
In view of this, main purpose of the present invention is providing a kind of collector plate manufacture method that is integrated on the analog board, can improve the shortcoming of aforementioned known skill.
According to preferred embodiment of the present invention; the invention provides a kind of manufacture method that is applied to the wave type collector plate in the fuel cell; at first; one anticorrosive and oxidation resistant current collection layer is provided; then on the first surface of this current collection layer, cover a shielding film; then on the second surface of this current collection layer, electroplate and form a conductive layer; then on this conductive layer, cover a dry film; wherein this dry film defines the shape and size of this collector plate; then etch away this conductive layer that is not covered by this dry film; then remove this dry film and this shielding film, then on the second surface of this current collection layer, attach a protective layer, to protect this conductive layer; then carry out one and cut technology; form this collector plate, at last this collector plate is struck out wavyly, make it possess the runner function.
According to preferred embodiment of the present invention, wherein this current collection layer includes the metal oxide of stainless steel, carbon, graphite nonmetallic materials, gold, white gold, silver, aluminium, chromium, titanium, cadmium metal or aforementioned metal.This conductive layer includes copper, metal oxide, metal alloy, gold, white gold, silver, carbon or graphite.This protective layer include electricity metal oxide, alloy, the macromolecular material of lacquer, stainless steel, aluminium, chromium, titanium, cadmium metal, aforementioned metal, contain siloxanes strand material and ceramic material.
Description of drawings
What Fig. 1 illustrated is the schematic top plan view of preferred embodiment undaform analog board of the present invention.
What Fig. 2 illustrated is the decomposing schematic representation of mould used in the present invention.
What Fig. 3 illustrated is the collector plate schematic diagram that another preferred embodiment definition of the present invention has the undaform runner.
Fig. 4 is the collector plate and form schematic diagram after the plate body base material combines among Fig. 3.
What Fig. 5 to Figure 13 illustrated is the wave type collector plate production method of preferred embodiment of the present invention.
Symbol description:
10 undaform analog boards, 11 plate body base materials
12 runner reaction zone 12a runner reaction zones
12b runner reaction zone 12c runner reaction zone
12d runner reaction zone 14 passes through the district
16 pass through district's 20 moulds
21 locating rings, 22 inlet linings
23 pilot pins, 24 film benevolence
25 liftout plates, 26 knock pins
27C bar 28 is held groove under the arm
29 backing-out punch upper shields, 40 inlet backing-out punch
41 backing-out punch fixed heads, 42 supporting brackets
43B plate 44A plate
Version is held at 45 tops under the arm
101 fuel inlets 102 flow into runner
103 branch pipes
111 fuel flow exports 112 flow out runner
113 flow out runner
120 collector plate 120a collector substrates
120b copper film 120c electricity lacquer
The positive 122 collector plate back sides of 121 collector plates
132 conduction ears, 220 sunk areas
202 SUS 316L stainless steels, 204 shielding films
206 copper metal layers, 208 dry films
210 macromolecules insulation glued membrane
Embodiment
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing.Yet appended graphic only for reference and aid illustration usefulness is not to be used for the present invention is limited.
The invention relates to that being used for the gas-liquid is the undaform analog board of fuel cell of fuel and the making of collector plate, wherein analog board has one or more than one reaction zone, with mea (MEA) pressing or the combination after, can produce electric current by the methanol fuel flowing reactive.
The undaform analog board that fuel cell of the present invention is used is a kind of hydrogen or hydrogen-containing compound to be reacted under catalyst, chemical energy is converted to a kind of device of electric energy, and the Proton Exchange Membrane Fuel Cells that analog board of the present invention is used at portable electronic product, in order to want frivolous and short and smallization, the chemical corrosivity of palpus anti-gas-liquid fuels of energy and reactant thereof, and have favorable mechanical character.
See also Fig. 1, what it illustrated is the schematic top plan view of preferred embodiment undaform analog board of the present invention.As shown in Figure 1, undaform analog board 10 of the present invention includes a plate body base material 11, and the runner reaction zone 12 of at least one undaform.Be that runner reaction zone 12a, 12b, 12c and 12d with four undaforms illustrates in Fig. 1, and the end view of runner reaction zone 12b is shown in Fig. 1 the right, the runner of runner reaction zone 12a, 12b, 12c and 12d is all from top to bottom or same stream field direction from down to up, wherein, runner reaction zone 12a, both runners of 12b are intercommunication, and the runner of runner reaction zone 12c and 12d is intercommunication, between runner reaction zone 12a and 12b,, between runner reaction zone 12c and 12d, distinguish 16 for passing through for passing through district 14.
In addition, the present invention is not limited at the single face of plate body base material 11 the runner reaction zone that undaform is set is arranged, can also form the runner reaction zone of identical undaform simultaneously at the another side of plate body base material 11, so the present invention can there be the application of single face runner and two-sided runner.
As shown in Figure 1, plate body base material 11 is provided with a fuel inlet 101 in addition at the fuel injection end, flows into runner 102 and branch pipe 103.Fuel, as methyl alcohol etc., enter respectively in each independent runner of runner reaction zone 12a and 12c via fuel inlet 101, inflow runner 102, branch pipe 103, and then inflow is connected runner reaction zone 12b and the 12d that communicates with runner reaction zone 12a and 12c respectively, at last, by flowing out runner 112 and 113,111 outflows of fuel flow export.
One of principal character of the present invention is that the runner of runner reaction zone 12a, 12b, 12c and 12d is all from top to bottom or same stream field direction from down to up, wherein, runner reaction zone 12a, both runners of 12b are intercommunication, and the runner of runner reaction zone 12c and 12d is intercommunication, and the single runner among each runner reaction zone 12a, 12b, 12c and the 12d is all mutual independence, so can make more smooth and easy, the homogenizing in flow field.
According to preferred embodiment of the present invention, the plate body base material 11 of undaform analog board of the present invention is that the utilization ejection forming technique forms, but utilize a kind of polymer composite of ejection formation, for example, polyether-ether-ketone (polyetheretherketone, abbreviate PEEK as), PEKK (polyetherketoneketone, abbreviate PEKK as), polysulfone resin (Polysulfone, abbreviate PSU as), wherein a kind of in the engineering plastics of liquid crystal polymer (liquid crystal polymer abbreviates LCP as), macromolecule plasticizing substrate or combined type material etc.
What need emphasize is, but be not the plate body base material 11 that the macromolecular material of all ejection formations all is fit to be used for making undaform analog board of the present invention, for instance, picture ABS resin, polypropylene (PP) resin and Merlon (polycarbonate, abbreviate PC as) etc., although it can make substrate by ejection formation, but do not possess desired methanol tolerance and high mechanical properties, so and be not suitable for using.Therefore, better suited material is still with above cited several, wherein particularly suitable with polysulfone resin.
In addition, but the polymer composite of above-mentioned ejection formation can adopt the processing mode that penetrates in the lump with filler.Aforesaid filler is modification agent, flowable, remover etc. for example.
Form undaform analog board execution mode about the present invention following example is illustrated it (in this example with poly-Feng macromolecule as the analog board material).
Basically, the basic step of jet forming method of the present invention has three, is respectively to melt, flow and solidify.At first, the polysulfone resin high molecule plastic material heat fused of powder shape is become liquid, then, the poly-Feng high molecule plastic material of fusing is injected in the mould, row cooling again, solidify.Entire making process is quick, also can automation, especially be fit to a large amount of production.
(1) fusing: the polysulfone resin high molecule plastic material of powder shape produced under temperature and pressure mould row and be out of shape.
(2) flow: the mobile under pressure entire die that is full of of the polysulfone resin high molecule plastic material of distortion.
(3) solidify, cool off: take out after waiting for polysulfone resin high molecule plastic material cooled.
What Fig. 2 illustrated is the decomposing schematic representation of mould 20 used in the present invention.Mould 20 used in the present invention can comprise locating ring 21, inlet lining 22, pilot pin 23, film benevolence 24, liftout plate 25, knock pin 26, C bar 27, hold groove 28, backing-out punch upper shield 29, inlet backing-out punch 40, backing-out punch fixed head 41, supporting bracket 42, B plate 43, A plate 44 and top under the arm holds version 45 under the arm, but is not confined to above-mentioned mould configuration.
The runner reaction zone 12 of undaform of the present invention can be simultaneously one-body molded with injection molding method with plate body base material 11, but the runner reaction zone of undaform can also be other formation, for example, define runner with a collector plate, and then combine with the plate body base material 11 that forms with injection molding method.
See also Fig. 3, what it illustrated is collector plate 120 schematic diagrames that another preferred embodiment definition of the present invention has the undaform runner.Another preferred embodiment of the present invention, collector plate (anode) 120 includes the metal material by the chemical corrosion of stainless steel or other ability fuel cell gas-liquid fuels, for example, the slim collector substrate 120a that material constituted such as SUS316, SUS316L, SUS304, SUS304L, titanium alloy, the undaform runner that is made into impact style.
As shown in Figure 3, be to be formed with a plurality of undaform runners independently mutually on the front 121 of collector plate 120 with impact style, can allow gas-liquid fuels pass through smoothly.If collector substrate 120a is constituted with stainless steel, because stainless resistance is higher, then at the back side 122 of collector plate 120, can plate one deck copper film 120b, reduce resistance whereby, then, " ED lacquer " 120c that lacquer or industry be commonly called as with an electricity again and cover the position and isolate to live in copper film 120b, copper layer 120b can not contacted with the gas-liquid fuels of fuel cell, poison battery and copper is separated out.Collector plate 120 includes a conduction ear 132 of protruding, can break and roll in addition, is used for collector plate 120 is connected with the line electricity that is formed on the negative electrode conductive plate, allows electronics derive.
Same, on the runner direction, also providing between two adjacent collector plates 120 and pass through district 14,16, its runner is formed in one and plate body base material 11 forms simultaneously, needs and the corresponding linking of the runner of collector plate 120.Conduction ear 132 can be connected with the line electricity on being formed on the negative electrode conductive plate behind stubborn folding, and can be with battery strings also.
The present invention includes following advantage at least with the practice that collector plate 120 is incorporated on the plate body base material 11.At first, collector plate 120 can stainless steel be made, and uses the technology of gold compared to known skill collector plate, can save many costs relatively, and it is also very simple fast that stainless steel substrate is defined the undaform runner with impact style.In addition, collector plate 120 is incorporated into integral thickness after the practice on the plate body base material 11 can reduce the fuel cell assembling.
The production method of collector plate 120 of the present invention not only can utilize an electric conducting material and the mode by pressing, and this electric conducting material is pressure bonded on the anticorrosive/acid-proof material, also can utilize the mode of sputter electric conducting material to be attached on anticorrosive/acid-proof material.
Because collector plate 120 in use, the membrane electrode (MEA) that conductive material layer will directly contact fuel cell carries out the electrical conductivity effect.And in the battery-operated process of natural fuel,, therefore when design, have following two kinds of phenomenons to need to be noted especially and consideration because of anode tap is under the state of oxidation for a long time:
(1) general electric conducting material such as copper metal etc. all easily descend because of anodizing causes its conductive capability, or even dissociate metal ion, and then destroy or poison the mea of whole fuel cell.
(2) if with noble metals such as gold or platinum as electric conducting material, the too high problem of manufacturing cost is then arranged.
Comprehensive above-mentioned 2 points below propose the collector plate production method of preferred embodiment of the present invention by Fig. 5 to Figure 13.
The present invention mainly provides a kind of multi-layer combined collector plate.It mainly comprises current collection layer, conductive layer and protective layer, and the function division of each layer is as follows:
(1) current collection layer: this layer material is mainly anticorrosive/oxidation electric conducting material, and it directly contacts mea and tool is collected the conduction electron function.
According to the present invention, the current collection layer material can be the material of nonmetallic materials such as metal alloy (as all types of stainless steels), carbon, graphite and other tool conductive capability, can also be the oxide of various metals such as gold, white gold, silver, aluminium, chromium, titanium, cadmium or aforementioned metal.
(2) conductive layer: on the electrical conductivity that this layer can be collected current collection layer other assembly to the fuel cell system, and can effectively improve collector plate monolithic conductive degree.
According to the present invention, conductive can be non-metallic conducting materials such as copper, metal oxide, other all types of metal alloys, carbon or graphite, with the material of other tool conductive capability.Can also be metals such as gold, white gold, silver.
(3) protective layer: this layer is mainly used in and hides and the protection conductive layer, and oxidation/corrosive environment of avoiding conductive layer directly to be exposed to battery produces corrosion or oxidation down and influences battery-operated usefulness.
According to the present invention, protective layer material can be the electricity various metals such as lacquer, all types of stainless steel, aluminium, chromium, titanium, cadmium, metal oxide, all types of alloy, various macromolecular material, the material that contains the siloxanes strand and ceramic material etc.
Above-mentioned conductive layer can utilize the mode of plating, electroless-plating, sputter or other chemistry, physical deposition to be attached on the current collection layer.
The production method of collector plate of the present invention also can be attached to the mode of current collection layer with plating, electroless-plating, sputter or other chemistry, physical deposition on the conductive layer.
The mode that can be with plating, electroless-plating, sputter, coating, spraying, printing, pressing or other chemistry, physics about the protective layer production method is attached to it on conductive layer.
See also Fig. 5 to Figure 13, will be with the explanation of following example about embodiment of the present invention, in this example, with SUS 316L stainless steel as the current collection layer material; Copper is as conductive; Polymeric laminate is as protective layer material.
Step 1: at first on SUS 316L stainless steel 202, adhere to one deck shielding film 204, prepare to carry out the metal plating of single face copper, as shown in Figure 5.
Step 2: on SUS 316L stainless steel 202, do not adhere to shielding film 204 parts with plating mode deposition last layer copper metal layer 206, its structure as shown in Figure 6.
Step 3: on copper metal layer 206, attach last layer dry film 208, photoresist for example, as shown in Figure 7.
Step 4: with exposure, visualization way forms the collector plate pattern on dry film 208, as shown in Figure 8.
Step 5: remove with the copper metal 206 that etching mode will not covered by dry film, its structure as shown in Figure 9.
Step 6: remove dry film 208 and shielding film 204, its structure as shown in figure 10.
Step 7: attach macromolecule insulation glued membrane 210 on copper metal layer 206, as protective layer, its structure as shown in figure 11.
Step 8: carry out one and cut technology, form collector plate 120, its structure as shown in figure 12, wherein copper metal layer 206 is lived by 210 protections of macromolecule insulation glued membrane.
Step 9: collector plate 120 is struck out wavy, make it possess the runner function, its structure as shown in figure 13.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (5)
1. manufacture method that is applied to the wave type collector plate in the fuel cell includes:
One anticorrosive and oxidation resistant current collection layer is provided;
On the first surface of this current collection layer, cover a shielding film;
On the second surface of this current collection layer, electroplate and form a conductive layer;
Cover a dry film on this conductive layer, wherein this dry film defines the shape and size of this collector plate;
Etch away this conductive layer that is not covered by this dry film;
Remove this dry film and this shielding film;
On the second surface of this current collection layer, attach a protective layer, to protect this conductive layer;
Carry out one and cut technology, form this collector plate; And
This collector plate is struck out wavy, make it possess the runner function.
2. the manufacture method that is applied to the wave type collector plate in the fuel cell as claimed in claim 1, wherein this current collection layer includes the metal oxide of stainless steel, carbon, gold, white gold, silver, aluminium, chromium, titanium, cadmium metal or aforementioned metal.
3. the manufacture method that is applied to the wave type collector plate in the fuel cell as claimed in claim 1, wherein conductive layer includes copper, metal oxide, metal alloy, gold, silver or carbon.
4. the manufacture method that is applied to the wave type collector plate in the fuel cell as claimed in claim 1, wherein this dry film is a photoresist.
5. the manufacture method that is applied to the wave type collector plate in the fuel cell as claimed in claim 1, wherein this protective layer is metal oxide, alloy or the macromolecular material of aluminium, chromium, titanium, cadmium metal, aforementioned metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101085055A CN100561781C (en) | 2006-08-03 | 2006-08-03 | Be applied to the manufacture method of the wave type collector plate in the fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101085055A CN100561781C (en) | 2006-08-03 | 2006-08-03 | Be applied to the manufacture method of the wave type collector plate in the fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101118968A CN101118968A (en) | 2008-02-06 |
| CN100561781C true CN100561781C (en) | 2009-11-18 |
Family
ID=39054975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101085055A Expired - Fee Related CN100561781C (en) | 2006-08-03 | 2006-08-03 | Be applied to the manufacture method of the wave type collector plate in the fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100561781C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029610B (en) * | 2019-11-11 | 2021-07-30 | 珠海格力电器股份有限公司 | Hydrogen fuel cell bipolar plate and hydrogen fuel cell |
-
2006
- 2006-08-03 CN CNB2006101085055A patent/CN100561781C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101118968A (en) | 2008-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7585582B2 (en) | Fuel cell module utilizing wave-shaped flow board | |
| US6531238B1 (en) | Mass transport for ternary reaction optimization in a proton exchange membrane fuel cell assembly and stack assembly | |
| KR100990465B1 (en) | Fuel cell module | |
| US7727656B2 (en) | Wave-shaped flow board of fuel cells | |
| CN101101989A (en) | Fuel battery module with wave current track board | |
| KR100950210B1 (en) | Fuel cell module | |
| CN101093890A (en) | Wave type fluid channel plate in use for fuel cell | |
| TWI311831B (en) | Wave-shaped charge collection plate of fuel cells and method of making the same | |
| CN101499535A (en) | Fuel cell module | |
| CN100561781C (en) | Be applied to the manufacture method of the wave type collector plate in the fuel cell | |
| CN100444445C (en) | Flow-collection mother-board and end-plate composite structure for fuel cells | |
| CN101599549A (en) | Self-respiration direct methanol fuel battery system and preparation method based on metal polar plate | |
| CN2938429Y (en) | Double-plate and fuel cell containing the double-plate | |
| JP3130802U (en) | Fuel cell | |
| CN100570942C (en) | Fuel cell modular structure | |
| CN100359731C (en) | Method for producing direct methanol fuel battery and its double pole plate base board | |
| CN2906941Y (en) | Flow channel plate with power accumulation function | |
| US20070254202A1 (en) | Cathode flow field board for fuel cell | |
| KR20070110800A (en) | Layer lamination integrated fuel cell | |
| CN201041818Y (en) | Collection board for fuel battery | |
| JP3133068U (en) | Anode flow plate used in fuel cells | |
| CN2893937Y (en) | Fuel cell device | |
| CN100359742C (en) | Flat-plate type direct methanol fuel cell and its producing method | |
| CN2847545Y (en) | Collector plate for fuel cell | |
| CN2914346Y (en) | Anode streaming plate for fuel cells |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20120803 |