CN101599550A - Plane type self-respiration micro direct methanol fuel battery group structure and preparation method - Google Patents
Plane type self-respiration micro direct methanol fuel battery group structure and preparation method Download PDFInfo
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- CN101599550A CN101599550A CNA200910072445XA CN200910072445A CN101599550A CN 101599550 A CN101599550 A CN 101599550A CN A200910072445X A CNA200910072445X A CN A200910072445XA CN 200910072445 A CN200910072445 A CN 200910072445A CN 101599550 A CN101599550 A CN 101599550A
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- 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
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- 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
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Abstract
The invention provides a kind of plane type self-respiration micro direct methanol fuel battery group structure and preparation method.The direct methanol fuel cell of this kind structure uses methanol aqueous solution to act as a fuel, and oxygen is directly supplied with by atmosphere, and the battery pack bipolar plate material all adopts the metal material (as stainless steel) of surface treatment (as titanium-nitride).Series connection between single pond adopts screw to connect the anode and cathode in adjacent single pond, and the both sides battery pack constitutes sandwich structure, the i.e. public feed flow chamber of both sides battery pack with the admission chamber of centre.This kind method of attachment can effectively be dwindled volume of fuel cell, is beneficial to processing in enormous quantities and improves battery performance.The present invention had both improved the performance and the stability of battery pack, was convenient to the self-respiration type battery pack again and connected, and technological process simultaneously is simple, low cost of manufacture, and it is little to take up room, and good mechanical property can be strengthened the intensity of battery structure.
Description
(1) technical field
The invention belongs to the Proton Exchange Membrane Fuel Cells field, be specifically related to a kind of self-respiration type micro direct methanol fuel battery group (μ DMFC).
(2) background technology
Micro fuel cell has its inherent advantage as a kind of minitype portable energy.Higher specific energy and energy conversion efficiency are the interested main causes of people.Gu Ding external structure and the liquid fuel that can fill at any time simultaneously also are user's condition of providing convenience.Not only volume is little, energy density is high but also can use at normal temperatures for micro direct methanol fuel battery, being very suitable for notebook computer, mobile phone, the increasing mobile electronic device of palmtop PC constant power, is one of new forms of energy of most possible at present replacement traditional energy.Yet processing is used for the micro fuel cell of portable energy source, the physical size that is not single reduction battery is so simple, mainly there is following problem in the research of direct methanol fuel cell at present: the bipolar plates intensity that (1) adopts graphite or silicon materials to make is low excessively, and practicality is not strong; (2) the μ DMFC corrosion phenomenon that adopts metal material to make is more serious.Therefore new bipolar plates must be used with regard to structure and processing method.(3) to take wasted space excessive for common method for packing.Therefore new design and method for packing must be used, and this is with traditional structure different from the past.(4) the liquid supply mode of traditional battery pack makes the feed flow of every batteries inhomogeneous, thereby has influenced the performance of battery pack, has therefore adopted a kind of new flow-guiding channel.Well solved the uneven problem of feed flow.
Adopt metal (as stainless steel) as plate material, utilize fine precision processing technology to produce the fuel battery pole board structure mold, thereby punching press is finished the electrode plate structure of fuel cell and is come assembled battery, do like this and have the following advantages: (1) is because metal material has good mechanical property, hardness is big, is not easy fracture, the characteristics that are easy to encapsulate, can guarantee the tight of battery structure, thereby reduce the internal resistance of cell effectively.(2) utilize the shape and size unanimity of the identical product stamping parts that stamping technology forms, interchangeability is good, helps the stability and the uniformity of battery performance.(3) with respect to other technologies, can produce complex-shaped part; Have enough precision and lower surface roughness, and the stock utilization height of stamping technology, thereby can reduce R﹠D costs, guarantee certain rate of finished products.
Utilize fine precision processing technology processing macro-molecular material (as organic glass, plastics etc.) to make cell support pole plate and guide plate and admission chamber, formed novel encapsulation and feed liquor mode, saved the volume of battery pack.Be beneficial to being connected of batch machining and battery pack.
(3) summary of the invention
The object of the present invention is to provide a kind of fine precision processing technology making that utilizes, the performance and the stability of battery pack had both been improved, being convenient to the self-respiration type battery pack again connects, technological process simultaneously is simple, low cost of manufacture, it is little to take up room, and good mechanical property can be strengthened the plane type self-respiration micro direct methanol fuel battery group structure of battery structure intensity.
The object of the present invention is achieved like this: it comprises encapsulation anchor clamps (support poly (methyl methacrylate) plate), bipolar plates (stainless steel), membrane electrode MEA and leakproof rubber cushion, four parts of water conservancy diversion poly (methyl methacrylate) plate and public admission chamber are formed, this battery pack is both sides plane symmetry structures, the public public admission chamber of the battery pack on both sides, galvanic anode is installed on the water conservancy diversion polymethyl methacrylate, utilize the method for micromachined to be made into the inlet of flow-guiding channel and selective opening at this water conservancy diversion polymethyl methacrylate, can determine the opening direction of public admission chamber according to the series system of battery, thereby determine the flow direction of fuel, the both sides of public admission chamber have four by isocon as drainage tube, liquid storage system and the battery pack of both sides symmetry carried out feed flow is used for arranging in pairs or groups; Cell cathode be installed in support organic on glass, install cell cathode polymethyl methacrylate around have the screws outlet that screw holes in centre of two screw holes of screw hole, every opposite side is electrically connected as the single pond of per two joints, whole four parts by around screw tightening fix.
Another object of the present invention is to provide a kind of preparation method of above-mentioned plane type self-respiration micro direct methanol fuel battery group structure, this method is produced the fuel battery pole board structure mold for utilizing fine precision processing technology, and stamped metal is finished minus plate, the positive plate making of fuel cell then; The method of utilizing ion sputtering is at yin, yang pole plate surface titanium-nitride; Utilize fine precision processing technology processing macro-molecular material (as organic glass, plastics etc.), can finish the making of flow-guiding channel and liquid storage cavity.
The invention provides a kind of self-respiration type micro direct methanol fuel battery group (μ DMFC) and the feed liquor mode of micro direct methanol fuel battery (μ DMFC) thereof, connected mode, processing method and the method for packing thereof between single pond.The direct methanol fuel cell of this kind structure uses methanol aqueous solution to act as a fuel, and oxygen is directly supplied with by atmosphere, and the battery pack bipolar plate material all adopts the metal material (as stainless steel) of surface treatment (as titanium-nitride).Series connection between single pond adopts screw to connect the anode and cathode in adjacent single pond, and the both sides battery pack constitutes sandwich structure, the i.e. public feed flow chamber of both sides battery pack with the admission chamber of centre.This kind method of attachment can effectively be dwindled volume of fuel cell, is beneficial to processing in enormous quantities and improves battery performance.
Characteristics of the present invention have:
1. described cathode plate utilizes the metal stamping technology to make.
2. described cathode plate, the used metal material of plate for preventing its corrosion, have utilized deposition process (as the sputter titanium nitride) to carry out surface treatment.
3. the electric connection mode in adjacent single pond of described battery pack is the adjacent two joint overlapping placements of single pond cathode and anode plate portion and connect with screw.
4. the drainage raceway groove on the described water conservancy diversion polymethyl methacrylate is to utilize the method for retrofit to be made.
5. described public admission chamber utilizes fine precision processing technology processing macro-molecular material (as organic glass) to make, and respectively monosymmetric battery pack is carried out feed flow.
The invention has the advantages that: the performance and the stability that 1, have improved battery pack; 2, being convenient to the self-respiration type battery pack connects; 3, technological process is simple, and low cost of manufacture is guaranteed certain rate of finished products; 4, take up room for a short time, save volume; 5, good mechanical property can be strengthened the structural strength of battery.
(4) description of drawings
Fig. 1 is assembly unit figure;
Fig. 2 is the schematic diagram of encapsulation anchor clamps;
Fig. 3 is the schematic diagram of public admission chamber;
Fig. 4 is the A face schematic diagram of water conservancy diversion poly (methyl methacrylate) plate;
Fig. 5 is the B face schematic diagram of water conservancy diversion poly (methyl methacrylate) plate.
(5) embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments:
In conjunction with Fig. 1, present embodiment comprises encapsulation anchor clamps 1 (support poly (methyl methacrylate) plate), cathode plate 2, plate 3, MEA membrane electrode 4 and leakproof rubber cushion 5, water conservancy diversion poly (methyl methacrylate) plate and 6 four parts of public admission chamber.Present embodiment utilizes fine precision processing technology to produce the fuel battery pole board structure mold, the punching press stainless steel is made cathode plate, the plate of battery then, in the middle of the pole plate is membrane electrode MEA and leakproof rubber cushion, and above assembled forms " sandwich " structure together.Fig. 2 is the schematic diagram of encapsulation anchor clamps, the encapsulation anchor clamps are provided with fixed screw outlet 7 and are electrically connected screw outlet 8, guarantee that battery can leakage and the compactness that connects of bipolar plates, Fig. 3 is the schematic diagram of public admission chamber, Fig. 4 is the A face schematic diagram of water conservancy diversion poly (methyl methacrylate) plate, and Fig. 5 is the B face schematic diagram of water conservancy diversion poly (methyl methacrylate) plate, and wherein the A face embeds the anode of battery, the drainage raceway groove that has the method for the retrofit of utilizing to be made on the B face, itself and public admission chamber sidewall are adjacent to.
The present embodiment battery pack is both sides plane symmetry structures, the public admission chamber of the battery pack on both sides, galvanic anode is installed on the water conservancy diversion polymethyl methacrylate, utilize the method for micromachined to be made into the inlet of flow-guiding channel and selective opening at this water conservancy diversion polymethyl methacrylate, can determine the opening direction of public admission chamber according to the series system of battery, thereby determine the flow direction of fuel, the admission chamber both sides have four by isocon as drainage tube, liquid storage system and the battery pack of both sides symmetry carried out feed flow is used for arranging in pairs or groups; Cell cathode be installed in support organic on glass, install cell cathode polymethyl methacrylate around have the screws outlet that screw holes in centre of two screw holes of screw hole, every opposite side is electrically connected as the single pond of per two joints, whole four parts by around screw tightening fix.
Claims (6)
1, a kind of plane type self-respiration micro direct methanol fuel battery group structure, it comprises the encapsulation anchor clamps, cathode plate, plate, MEA membrane electrode and leakproof rubber cushion, water conservancy diversion poly (methyl methacrylate) plate and public admission chamber, it is characterized in that battery pack is both sides plane symmetry structures, the public public admission chamber of the battery pack on both sides, plate is installed on the water conservancy diversion poly (methyl methacrylate) plate, the water conservancy diversion poly (methyl methacrylate) plate is provided with the inlet of flow-guiding channel and selective opening, the opening direction of public admission chamber is determined according to the series system of battery, the both sides of public admission chamber have four by isocon as drainage tube, liquid storage system and the battery pack of both sides symmetry carried out feed flow is used for arranging in pairs or groups; The cell cathode pole plate is installed in the encapsulation anchor clamps.
2, plane type self-respiration micro direct methanol fuel battery group structure according to claim 1, it is characterized in that encapsulating anchor clamps for supporting poly (methyl methacrylate) plate, around the support polymethyl methacrylate of installation cell cathode screw hole is arranged, the screw hole in the centre of two screw holes of every opposite side is as the electrical connection screw outlet in the single pond of per two joints, all the other are the fixed screw outlet, and whole four parts are tightened fixing by fixed screw outlet all around.
3, plane type self-respiration micro direct methanol fuel battery group structure according to claim 1 is characterized in that cathode plate, plate make for the punching press stainless steel.
4, a kind of preparation method according to above-mentioned plane type self-respiration micro direct methanol fuel battery group structure, it is characterized in that this method produces the fuel battery pole board structure mold for utilizing fine precision processing technology, stamped metal cathode plate, the plate of finishing fuel cell made then; The method of utilizing ion sputtering is at cathode plate, plate surface titanium-nitride; Utilize fine precision processing technology processing macro-molecular material, can finish the making of flow-guiding channel and public admission chamber.
5, the preparation method of plane type self-respiration micro direct methanol fuel battery group structure according to claim 4, it is characterized in that utilizing the method for micromachined to be made into the inlet of flow-guiding channel and selective opening at this water conservancy diversion polymethyl methacrylate, determine the opening direction of public admission chamber according to the series system of battery, thereby determine the flow direction of fuel.
6, the preparation method of plane type self-respiration micro direct methanol fuel battery group structure according to claim 4 is characterized in that macromolecular material comprises polymethyl methacrylate, plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910072445XA CN101599550A (en) | 2009-07-02 | 2009-07-02 | Plane type self-respiration micro direct methanol fuel battery group structure and preparation method |
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| CNA200910072445XA CN101599550A (en) | 2009-07-02 | 2009-07-02 | Plane type self-respiration micro direct methanol fuel battery group structure and preparation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148927A (en) * | 2018-09-04 | 2019-01-04 | 重庆大学 | Air-breathing with submergence microjet is without film microfluid fuel cell |
| CN112186198A (en) * | 2020-09-17 | 2021-01-05 | 北京航空航天大学 | Direct methanol fuel cell with anode using carbon nanotube paper as diffusion layer |
| CN115491698A (en) * | 2022-10-17 | 2022-12-20 | 天津大学 | Freely assembled H based on cathode unit group 2 O 2 Synthesis reactor |
| CN116742043A (en) * | 2023-06-09 | 2023-09-12 | 哈尔滨工业大学 | PDMFC with methanol solid-state storage fuel supply structure and working method |
-
2009
- 2009-07-02 CN CNA200910072445XA patent/CN101599550A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148927A (en) * | 2018-09-04 | 2019-01-04 | 重庆大学 | Air-breathing with submergence microjet is without film microfluid fuel cell |
| CN109148927B (en) * | 2018-09-04 | 2021-03-19 | 重庆大学 | Air self-breathing membraneless microfluidic fuel cell with immersed microjets |
| CN112186198A (en) * | 2020-09-17 | 2021-01-05 | 北京航空航天大学 | Direct methanol fuel cell with anode using carbon nanotube paper as diffusion layer |
| CN115491698A (en) * | 2022-10-17 | 2022-12-20 | 天津大学 | Freely assembled H based on cathode unit group 2 O 2 Synthesis reactor |
| CN116742043A (en) * | 2023-06-09 | 2023-09-12 | 哈尔滨工业大学 | PDMFC with methanol solid-state storage fuel supply structure and working method |
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Open date: 20091209 |