CN101098018A - Organic fuel cell - Google Patents
Organic fuel cell Download PDFInfo
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- CN101098018A CN101098018A CNA2006100907550A CN200610090755A CN101098018A CN 101098018 A CN101098018 A CN 101098018A CN A2006100907550 A CNA2006100907550 A CN A2006100907550A CN 200610090755 A CN200610090755 A CN 200610090755A CN 101098018 A CN101098018 A CN 101098018A
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- anode
- battery
- battery container
- heat elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
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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
Abstract
An organic fuel battery comprises a membrane electrode and a battery casing, wherein the membrane electrode is arranged in the battery casing, the membrane electrode comprises an anode, a cathode, and an atom exchange membrane between the anode and the cathode. The battery further comprises at least one thermal conductive element partly in the battery casing while another portion is extruded outside the battery casing. Compared with prior art, the power density of battery is improved more than one times. Via the thermal contact with a heater of electric device, the invention can effectively utilize the waste heat of electric device, and effectively improve the power density of battery with resolved thermal pollution problem.
Description
Technical field
The invention relates to a kind of fuel cell, especially about a kind of organic fuel cell.
Background technology
Fuel cell is a kind of device that chemical energy is converted into electric energy.Existing fuel cell generally comprises membrane electrode, and membrane electrode comprises anode, negative electrode and the proton exchange membrane between anode and negative electrode.
Anode is a kind of gas-diffusion electrode, and its backing material generally is made up of the charcoal fiber or the carbon cloth of conduction.It between anode and proton exchange membrane the catalyticing anode catalyst for reaction.This anode catalyst be generally platinum powder end, platiniferous alloy powder, load on the platinum on the carrier or load on the alloy powder of the platiniferous on the carrier.The alloy of described platiniferous contains platinum and is selected from ruthenium, tin, iridium, osmium, the rhenium one or more.Described carrier is to have the higher specific surface and the carrier of conduction, as active carbon.The outside of anode is a baffler, and this baffler can be graphite material or metal material.
Negative electrode also is a kind of gas-diffusion electrode, and its formation is identical with anode construction, and difference is that the catalyst between negative electrode and the proton exchange membrane is the catalyst of catalyst cathode reaction.This cathod catalyst is generally the platinum powder end, loads on the platinum powder end on the carrier.The outside of negative electrode also is a baffler, and this baffler can be graphite material or metal material.
Proton exchange membrane is a kind of permeable air-locked pellicle, and it has the proton conduction effect, can also prevent oxidant and fuel generation mixed explosion.
Be respectively methyl alcohol and hydrogen with fuel, oxidant is that air or oxygen is an example, and following electrochemical reaction takes place battery.
When fuel was methyl alcohol, anode 11 electrochemical reactions were as follows:
CH
3OH+H
2O→CO
2+6H
++6e (1)
When fuel was hydrogen, anode 11 electrochemical reactions were as follows:
3H
2→6H
++6e (2)
Meanwhile, at negative electrode following electrochemical reaction takes place:
3/2O
2+6H
++6e→3H
2O， (3)
Single electrode is sent out and should (1) and (3) and (2) and (3) be caused following overall reaction to take place respectively:
CH
3OH+3/2O
2→CO
2+2H
2O (4)
3H
2+3/2O
2→3H
2O (5)
The above-mentioned electrochemical reaction of anode and negative electrode makes anode and negative electrode produce potential difference, and the electronics that anode produces is caught by negative electrode at last by outer field baffler of anode and external current conductor.The proton that anode produces then sees through the proton film and is directly passed to negative electrode, has so just formed electric current.
Fuel in the described fuel cell not only comprises methyl alcohol and hydrogen, also comprises other organic-fuel.For example, described organic-fuel can be selected from one or more in liquid alcohols, liquid ethers and the liquid organic acid, perhaps is selected from the liquid alcohol aqueous solution and the liquid acid aqueous solution one or more; Be preferably in methyl alcohol, ethanol, formic acid and the ether one or more, perhaps one or more in methanol aqueous solution, ethanol water, the aqueous formic acid.
Described fuel is that the battery of organic-fuel has and pollutes for a short time, and noise is low, and system is simple, is easy to carry, and fuel source extensively, advantage such as be easy to get.And because organic-fuel is in a liquid state, have very high specific energy, on storing, need not to adopt modes such as compressed gas cylinder, be easy to carry.Simultaneously, with respect to inflammable and explosive oxygen, organic-fuel has more believable fail safe.
Though described fuel is that the battery of organic-fuel has aforesaid advantage,, oneself shortcoming is also arranged.For example, its main shortcoming is that the catalyst of platiniferous is bad for the catalytic effect of organic-fuel, can generate the intermediate of carbon monoxide in the organic-fuel catalytic oxidation process, and the carbon monoxide intermediate can combine with the platinum in the catalyst, form stable complex compound, make catalysqt deactivation.So, the relative battery that acts as a fuel with hydrogen, described fuel is that the battery of organic-fuel has very low unit are electrode power density.With described organic-fuel is that methyl alcohol is example, the data of report just at present, and the unit are power density of the battery that acts as a fuel with hydrogen generally is that described fuel is more than 10 times of unit are power density of the battery of methyl alcohol.If reach identical power, the battery that uses organic-fuel to act as a fuel, its electrode activity area are several times of the battery that acts as a fuel with hydrogen, and the amount of the use of noble metal such as platinum also can increase several times in the catalyst.Make that like this cost of fuel cell can improve greatly when organic fuel during as battery fuel.
Studies show that, the organic fuel cell power density is low be by organic-fuels such as methyl alcohol the catalytic oxidation process of anode slow due to, temperature is very big for the performance impact of direct methanol fuel cell, as document Joural of Power Sources 2005,139:79-90, Joural of Power Sources 2002, that mentions among the 109:76-88 is the same, and the power density of fuel cell rises along with the rising of temperature.So adopt temperature which kind of method improves fuel cell for enlarge fuel cell on electronic product application and the range of application of diffused fuel battery be the focus that recent people pay close attention to.
For example, US 20030003336 has described a kind of method of controlling the copolymer solid electrolyte fuel battery temperature, described fuel cell comprises anode, negative electrode and the copolymer solid electrolyte between anode and negative electrode, this method comprise to the negative electrode of fuel cell supply oxidant stream, to the anode supply of fuel cell contain methyl alcohol fuel stream, measure the indicated temperature value of fuel cell and adjust fuel flow characteristics according to measuring temperature, wherein, described fuel flow characteristics is methanol concentration or the methyl alcohol dividing potential drop in the fuel stream.This method implement cumbersome.
The another kind of method of raising fuel battery temperature commonly used is by using extraneous thermal source that battery container is heated at present, with the temperature of raising fuel cell, thus the power density of raising battery.Though this method can improve the power density of fuel cell to a certain extent, but the amplitude that power density improves is very limited, but also the power of finding the thermal source of consumption is far longer than the power that fuel cell improves, and obviously this is a kind of method that loses more than gain, and is very uneconomical.
Summary of the invention
The objective of the invention is provides a kind of power density high organic fuel cell in order to overcome the low shortcoming of organic fuel cell power density of the prior art.
In order effectively to improve fuel cell energy utilization ratio to external world, the inventor attempts conducting-heat elements deeply is set to inside battery, especially be deep between the electrode, make heat directly to heated by electrodes, thereby effectively improve electrode reaction speed, reach the purpose that increases substantially power of battery density with lower energy consumption.
In addition, well-known, electronic equipment such as notebook computer have a large amount of heats and come out when work.When for example a notebook was at room temperature worked, its bottom temp can reach more than 40 ℃, and this thermal source also all directly is dispersed in the environment at present, caused ambient temperature to raise, and became a kind of " thermal pollution ".Usually need extra cooling system to reduce ambient temperature to protect electronic equipment or to make amenity for this reason.And the conventional power density of organic fuel cell when working temperature is 40 ℃ doubles above than the power density when working temperature is room temperature.So the present inventor's imagination, if the heat that distributes when portable electric appts is worked deeply pass to the used organic fuel cell internal electrode of this equipment send out should, the organic fuel cell temperature inside is raise, just can realize need not the power density that extra heating can improve organic fuel cell exponentially.Can improve the power density of battery on the one hand, " thermal pollution " in the time of can also effectively solving electronic device works on the other hand.
Organic fuel cell provided by the invention comprises membrane electrode and battery container, described membrane electrode is contained in the battery container, described membrane electrode comprises anode, negative electrode and the proton exchange membrane between anode and negative electrode, wherein, this battery also comprises at least one conducting-heat elements, described conducting-heat elements partly is positioned at battery container, and another part stretches out the outside of battery container.
Organic fuel cell provided by the invention is owing to comprise the conducting-heat elements that directly is deep in the battery container, thereby can effectively external heat be passed to the electrode reaction of inside battery, the battery electrode reaction temperature is raise, effectively improve the speed of liquid fuel oxidation, thereby can improve the power density of battery.The power density of organic fuel cell provided by the invention is up to 76 milliwatt/square centimeters (at ambient temperature), improves a lot than 35 milliwatt/square centimeters of similar battery in the prior art.The preparation method of organic fuel cell provided by the invention is simple and easy to implement.
If another part of conducting-heat elements is come close to or in contact with the heat abstractor of the electronic equipment that uses this battery or the device of generation heat, the heat transferred battery that distributes in the time of can be effectively with electronic device works, can improve the power density of battery on the one hand, " thermal pollution " in the time of can also effectively solving electronic device works on the other hand.
Description of drawings
Fig. 1-12 is the structural representation of organic fuel cell provided by the invention.
Embodiment
According to battery provided by the invention shown in Fig. 1-12.This battery comprises membrane electrode 1 and battery container 4, and described membrane electrode 1 comprises anode 11, negative electrode 13 and the proton exchange membrane 12 between anode 11 and negative electrode 13; Wherein, described battery also comprises at least one conducting-heat elements 3, and described conducting-heat elements 3 parts are positioned at battery container 4, and another part stretches out the outside of battery container 4.
According to organic fuel cell provided by the invention, described conducting-heat elements 3 can be positioned at each position of battery container 4, as long as can be with on the membrane electrode 1 of the heat transferred on the conducting-heat elements 3 in the battery, the speed that is used to improve the organic-fuel oxidation gets final product.
For example, described conducting-heat elements 3 part that is positioned at battery container 4 can be positioned at and descend one of column position at least: (1) is (Fig. 1, Fig. 3) between negative electrode 13 and battery container 4; (2) between anode 11 and battery container 4 (Fig. 2, Fig. 3); (3) between anode 11 and proton exchange membrane 12 (Fig. 5, Fig. 6); (4) between negative electrode 13 and proton exchange membrane 12 (Fig. 4, Fig. 6).
Under the preferable case, shown in Fig. 7-11, organic fuel cell of the present invention also comprises baffler 2, described baffler 2 is preferably placed between membrane electrode 1 and the battery container 4, can be divided into anode flow field 21 and/or cathode diversion plate 22, be used to induce the flow direction of fuel and/or oxidant, to improve the utilance of fuel.Preferred described organic fuel cell comprises anode flow field 21 and cathode diversion plate 23 simultaneously, at this moment, described anode flow field 21 is preferably placed between the anode 11 and battery container 4 inwalls of membrane electrode 1, and described cathode diversion plate 23 is preferably placed between the negative electrode 13 and battery container 4 inwalls of membrane electrode 1.When organic fuel cell of the present invention comprised anode flow field 21 and cathode diversion plate 23, the part that described conducting-heat elements 3 is positioned at battery container 4 can also be positioned at descends one of column position at least: (5) were between anode flow field 21 and battery container 4 inwalls (Fig. 7 or Fig. 9); (6) between cathode diversion plate 23 and battery container 4 inwalls (Fig. 8 or Fig. 9); (7) between anode 11 and anode flow field 21 (Figure 10); Perhaps (8) are between negative electrode 13 and cathode diversion plate 23 (Figure 11).
Described conducting-heat elements 3 can be the material that has the excellent heat conductivity performance arbitrarily, for example can be in silver, copper, aluminium, gold and other alloy material one or more, also can be applied to by particle on the sheeting with heat conductivility above-mentioned Heat Conduction Material, form heat-conducting layer, make sheeting obtain thermal conductivity.The described material that does not have heat conductivility for example can be PTFE.Described heat-conducting layer can be realized coating by vapour deposition process, plasma method, arc light method and galvanoplastic or other suitable coating technique.The concrete operations of said method have been conventionally known to one of skill in the art, do not repeat them here.
Under the preferable case, antioxidation coating, hydrophilic layer or water-repellent layer are also contained in the surface of conducting-heat elements 3 of the present invention.For example, when conducting-heat elements 3 being arranged in the membrane electrode promptly between anode and proton exchange membrane and/or between negative electrode and the proton exchange membrane, preferably anti-oxidation processing is carried out on the surface of conducting-heat elements 3, as carrying out gold-plated processing on non-golden conducting-heat elements surface.When between the negative electrode 13 that described conducting-heat elements 3 is arranged on fuel cell and proton exchange membrane 12 and/or the battery container 4,, above-mentioned conducting-heat elements can be carried out hydrophobic and handle in order to make the water reverse osmosis that produces at negative electrode to anode.The mode that described hydrophobic is handled can be by with PTFE on conducting-heat elements 3 surface impregnations, forms the PTFE layer, to obtain the hydrophobic ability.When described conducting-heat elements 3 is arranged on the anode of adjacent fuel cell, in order to absorb the water of coming better, be beneficial to organic-fuel simultaneously and spread to catalyst layer from the negative electrode reverse osmosis, above-mentioned conducting-heat elements 3 can be carried out hydrophilic treated.The mode of described hydrophilic treated for example can be by with NAFION solution on conducting-heat elements 3 surface impregnations, forms the NAFION layer, to obtain hydrophilicity.Under the preferable case, the thickness of above-mentioned antioxidation coating, hydrophobic layer or water-repellent layer is the 5-10 micron.
Under the preferable case, when above-mentioned conducting-heat elements 3 is arranged in the battery container 4 with any one or a few part in above-mentioned (4), (5), (6), (10) or (11) kind mode, be distributed with the through hole that liquids and gases can pass through on the described conducting-heat elements 3, described through hole can be a rule or irregularly shaped.The size and the shape of through hole are not particularly limited, preferably guarantee under the situation that liquid passes through as far as possible little.Under the preferable case, the gross area of described through hole is the 5-20% of area on a surface of this through hole place conducting-heat elements.Preferred through hole evenly distributes on the conducting-heat elements surface, and the fuel and the oxidant that enter battery are evenly distributed on the electrode.When fuel cell of the present invention comprised baffler, the through hole on the preferred conducting-heat elements was consistent with the through hole distribution on the baffler.
The present invention does not have special requirement to the shape of conducting-heat elements 3.Under the preferable case, the thickness of described conducting-heat elements is the 0.05-30 millimeter, and more preferably the 0.1-20 millimeter especially is preferably the 0.1-10 millimeter.Described conducting-heat elements can stretch out the outside of battery container 4 with one or more directions, and the length of conducting-heat elements 3 can receive external heat with described conducting-heat elements and be as the criterion.The described mode that can receive external heat can be that conducting-heat elements 3 directly contacts with extraneous thermal source, also can be by heat abstractor such as fan can blow and the position.Described extraneous thermal source can be independent firing equipment, also can be to use the electronic equipment of this battery itself, and the preferred described extraneous thermal source of the present invention is for using the electronic equipment of this battery itself.
According to foregoing description of the present invention, conducting-heat elements of the present invention can also serve as anode flow field, cathode diversion plate, anode-supported material or cathode support material simultaneously, thereby replaces anode flow field, cathode diversion plate, anode-supported material or cathode support material or work to strengthen anode flow field, cathode diversion plate, anode-supported material or cathode support material.
There is no particular limitation to the number of described conducting-heat elements 3 in the present invention, can be one or more, for example can be 1-4, be preferably each membrane electrode and comprise two conducting-heat elements 3 that more preferably two conducting-heat elements 3 are respectively simultaneously with heat transferred anode 11 and negative electrode 13.
According to the present invention, described anode 11 is a kind of gas-diffusion electrodes, and its backing material is generally the charcoal fiber or the carbon cloth of conduction and forms.It between anode and proton exchange membrane the catalyticing anode catalyst for reaction.This anode catalyst be generally platinum powder end, platiniferous alloy powder, load on the platinum on the carrier or load on the alloy powder of the platiniferous on the carrier.The alloy of described platiniferous contains platinum and is selected from ruthenium, tin, iridium, osmium, the rhenium one or more.Described carrier is to have the higher specific surface and the carrier of conduction, as active carbon.
Proton exchange membrane described in the present invention 12 can be the various proton exchange membrane that are suitable for fuel cell, for example can be permeable arbitrarily airtight and have the pellicle of proton conduction effect, Nafion film, the disclosed proton exchange membrane of US5795496, a disclosed proton exchange membrane of US20030129467 as everyone knows.
The baffler that selectivity comprises can be conventional various graphite materials or the metal material that uses of fuel cell field, is used to guide the fuel that enters fuel battery inside and the flow direction of oxidant, and described baffler comprises a plurality of through holes.Described metal material can be selected from a kind of in steel, copper, titanium, the silver or two or more alloy in them.
The present invention only relates to the change to the inside battery structure, the supply of other structures of fuel cell such as the required oxidant of operation of fuel cells, reducing agent had no particular limits, and can be that conventional method of supplying gets final product.
Described fuel can be the various various organic-fuels that are suitable for fuel cell, as in methyl alcohol, ethanol, dimethoxymethane, trimethoxy-methane or their solution one or more.The preferred described fuel of the present invention is methyl alcohol and/or methanol solution.Described oxidant can be various oxidizing gas, is preferably air and/or oxygen.
In the fuel cell of the present invention, described membrane electrode can also be for comprising the mea that comprises anode, negative electrode and the proton exchange membrane between anode and negative electrode of a plurality of mutual series connection, and described a plurality of membrane electrodes are contained in the battery container (as Figure 12) simultaneously.The group number of preferred film electrode is 2-200, is also referred to as fuel cell pack comprising the fuel cell of a plurality of membrane electrodes.The number of conducting-heat elements can be identical with set-up mode in each membrane electrode, also can be different.
There is no particular limitation to the structure of described fuel supply device, oxidant feeding mechanism and battery container and annexation, for the related device of fuel cell routine gets final product with being connected.
At least a portion of the conducting-heat elements of organic fuel cell of the present invention is goed deep into battery container inside, another part and extraneous thermal source contact or are positioned at for example fan position that can blow to, position that extraneous thermal source can be delivered to, be delivered to inside battery with thermal source with the external world, be used to promote fuel cell reaction, improve the power density of fuel cell.Described extraneous thermal source can be a firing equipment independently, or by the used heat of this liquid fuel battery electronic equipment powered, the heat that produces during as electronic device works, described electronic equipment for example can be mobile phone, PDA, notebook computer.
The following examples will the present invention will be further described.
Embodiment 1
This example illustrates fuel cell provided by the invention.
Prepared battery as shown in Figure 8, conducting-heat elements 3 is between battery container 4 and cathode diversion plate 23.
Wherein, conducting-heat elements 3 is for being of a size of 100 millimeters * 100 millimeters * 1 millimeter aluminium sheet, be distributed with the through hole of impenetrating thickness direction on the aluminium sheet, the area of through hole is 375 square millimeters, the backing material of anode 11 is the charcoal fiber, and anode 11 catalyst are that the charcoal of J-M company carries platinum-ruthenium catalyst, and wherein the percentage by weight of platinum is 20 weight %, the percentage by weight of ruthenium is 10 weight %, and platinum-ruthenium carrying capacity is 4 milligrams/centimetre
2, anode 11 is of a size of 50 millimeters * 50 millimeters * 0.3 millimeter, and anode flow field 21 and cathode diversion plate 23 are graphite, and size is 50 millimeters * 50 millimeters * 0.3 millimeter.
The backing material of negative electrode 13 is the charcoal fiber, and cathod catalyst is the charcoal platinum catalyst of J-M company, and wherein the percentage by weight of platinum is 40 weight %, and the carrying capacity of platinum is 1 milligram/centimetre
2, negative electrode 13 is of a size of 50 millimeters * 50 millimeters * 0.3 millimeter.
Proton exchange membrane is the Nafion115 proton exchange membrane of E.I.Du Pont Company.
This example illustrates fuel cell provided by the invention.
Prepared battery as shown in Figure 9, conducting-heat elements 3 is 2, lays respectively between battery container 4 and cathode diversion plate 23 and battery container 4 and the anode flow field 21.
Wherein, conducting-heat elements 3 is and is of a size of 150 millimeters * 150 millimeters * 0.5 millimeter copper coin, be distributed with the through hole of impenetrating thickness direction on the copper coin, the area of through hole is 375 square millimeters, the backing material of anode 11 is the charcoal fiber, and anode 11 catalyst are that the charcoal of J-M company carries platinum-ruthenium catalyst, and wherein the percentage by weight of platinum is 20 weight %, the percentage by weight of ruthenium is 10 weight %, and platinum-ruthenium carrying capacity is 4 milligrams/centimetre
2, anode 11 is of a size of 60 millimeters * 60 millimeters * 0.3 millimeter, and anode flow field 21 and cathode diversion plate 23 are graphite, and size is 60 millimeters * 60 millimeters * 0.3 millimeter.
Be distributed with the through hole that liquids and gases can pass through on the described conducting-heat elements 3, the distribution of described through hole is consistent with the through hole (sprue) of corresponding baffler in the fuel cell.
The backing material of negative electrode 13 is the charcoal fiber, and cathod catalyst is the charcoal platinum catalyst of J-M company, and wherein the percentage by weight of platinum is 40 weight %, and the carrying capacity of platinum is 1 milligram/centimetre
2, negative electrode 13 is of a size of 60 millimeters * 60 millimeters * 0.3 millimeter.
Proton exchange membrane is the Nafion115 proton exchange membrane of E.I.Du Pont Company.
This example illustrates fuel cell provided by the invention.
Prepared battery as shown in Figure 5, conducting-heat elements 3 is between anode 11 and proton exchange membrane 12.
Wherein, conducting-heat elements 3 passes through hydrophilic treated, is of a size of 45 millimeters * 45 millimeters * 0.2 millimeter gold plated copper sheets, be distributed with the through hole of impenetrating thickness direction on the gold plated copper sheets, the area of through hole is 375 square millimeters, the hydrophilic treated process is that above-mentioned conducting-heat elements was flooded 10 minutes in 5%Nanfion solution, normal temperature forced air drying then, then 120 ℃ of dryings 30 minutes under inert gas shielding; The backing material of anode 11 is the charcoal fiber, and anode 11 catalyst are that the charcoal of J-M company carries platinum-ruthenium catalyst, and wherein the percentage by weight of platinum is 20 weight %, and the percentage by weight of ruthenium is 10 weight %, and platinum-ruthenium carrying capacity is 4 milligrams/centimetre
2, anode 11 is of a size of 45 millimeters * 45 millimeters * 0.3 millimeter, and anode flow field and cathode diversion plate are graphite, and size is 45 millimeters * 45 millimeters * 0.3 millimeter.
The backing material of negative electrode 13 is the charcoal fiber, and cathod catalyst is the charcoal platinum catalyst of J-M company, and wherein the percentage by weight of platinum is 40 weight %, and the carrying capacity of platinum is 1 milligram/centimetre
2, negative electrode 13 is of a size of 45 millimeters * 45 millimeters * 0.3 millimeter.
Proton exchange membrane is 1035 poly-perfluoro sulfonic acid membranes of DuPont company.
This example illustrates fuel cell provided by the invention.
Prepared battery as shown in Figure 6, conducting-heat elements 3 is 2, lays respectively between anode 11 and the proton exchange membrane 12 and between negative electrode 13 and the proton exchange membrane 12.
Wherein, conducting-heat elements 3 applies the copper PTFE thin slice of deposit again for the surface that is of a size of 45 millimeters * 45 millimeters * 0.2 millimeter, be distributed with the through hole of impenetrating thickness direction on the thin slice, the area of through hole is 365 square millimeters, the backing material of anode 11 is the charcoal fiber, and anode 11 catalyst are that the charcoal of J-M company carries platinum-ruthenium catalyst, and wherein the percentage by weight of platinum is 20 weight %, the percentage by weight of ruthenium is 10 weight %, and platinum-ruthenium carrying capacity is 4 milligrams/centimetre
2, anode 11 is of a size of 45 millimeters * 45 millimeters * 0.3 millimeter, and anode flow field and cathode diversion plate are graphite, are of a size of 45 millimeters * 45 millimeters * 0.3 millimeter.
The backing material of negative electrode 13 is the charcoal fiber, and cathod catalyst is the charcoal platinum catalyst of J-M company, and wherein the percentage by weight of platinum is 40 weight %, and the carrying capacity of platinum is 1 milligram/centimetre
2, negative electrode 13 is of a size of 45 millimeters * 45 millimeters * 0.3 millimeter.
Proton exchange membrane is the Nafion115 proton exchange membrane of E.I.Du Pont Company.
Embodiment 5
This example illustrates fuel cell provided by the invention.
Prepared battery as shown in figure 12, membrane electrode is the mea that comprises 3 identical series connection membrane electrodes, comprises 2 conducting-heat elements 3 in each membrane electrode, lays respectively between anode 11 and the proton exchange membrane 12 and between negative electrode 13 and the proton exchange membrane 12.
Wherein, conducting-heat elements 3 applies the copper PTFE thin slice of deposit again for the surface that is of a size of 45 millimeters * 45 millimeters * 0.2 millimeter, be distributed with the through hole of impenetrating thickness direction on the thin slice, the area of through hole is 375 square millimeters, the backing material of anode 11 is the charcoal fiber, and anode 11 catalyst are that the charcoal of J-M company carries platinum-ruthenium catalyst, and wherein the percentage by weight of platinum is 20 weight %, the percentage by weight of ruthenium is 10 weight %, and platinum-ruthenium carrying capacity is 4 milligrams/centimetre
2, anode 11 is of a size of 45 millimeters * 45 millimeters * 0.3 millimeter, and anode flow field and cathode diversion plate are graphite, and size is 45 millimeters * 45 millimeters * 0.3 millimeter.
The backing material of negative electrode 13 is the charcoal fiber, and cathod catalyst is the charcoal platinum catalyst of J-M company, and wherein the percentage by weight of platinum is 40 weight %, and the carrying capacity of platinum is 1 milligram/centimetre
2, negative electrode 13 is of a size of 45 millimeters * 45 millimeters * 0.3 millimeter.
Proton exchange membrane is the Nafion115 proton exchange membrane of E.I.Du Pont Company.
Comparative Examples 1
Prepare organic fuel cell according to the method identical with embodiment 1, different is not contain conducting-heat elements in the battery.
Power of battery density measurement
The organic fuel cell that the foregoing description 1-5 and Comparative Examples 1 are made carries out power of battery density measurement respectively, the test process of the battery that embodiment 1-5 makes is as follows: at room temperature above-mentioned fuel cell is assembled into cell apparatus, then above-mentioned conducting-heat elements is contacted (used heat of simulation electronic device) with 40 ℃ thermal source, usually press air at anode then, methanol solution in logical 1 mol of battery cathode carries out battery testing.The method of testing of Comparative Examples 1 is identical with said method, and different is because do not contain conducting-heat elements, thereby does not contact with 40 ℃ of thermals source.The result is as shown in table 1.
Table 1
| Embodiment 1 | |
|
|
Embodiment 5 | Comparative Examples 1 | |
| Power of battery density (milliwatt/square centimeter) | 75 | 74 | 76 | 75 | 75 | 36 |
From the result of last table 1 as can be seen, organic fuel cell provided by the invention compared with prior art, the power density of battery has improved more than 1 times.Carry out thermo-contact by electro-heat equipment, can effectively utilize the used heat of electronic equipment, when solving the thermal pollution problem, also effectively improved the power density of battery with electronic equipment itself.
Claims (14)
1, a kind of organic fuel cell, this battery comprises membrane electrode and battery container, described membrane electrode is contained in the battery container, described membrane electrode comprises anode, negative electrode and the proton exchange membrane between anode and negative electrode, it is characterized in that, this battery also comprises at least one conducting-heat elements, and described conducting-heat elements partly is positioned at battery container, and another part stretches out the outside of battery container.
2, battery according to claim 1, wherein, described conducting-heat elements is 1-4.
3, battery according to claim 1, wherein, the described conducting-heat elements part that is positioned at battery container is positioned at and descends one of column position at least: between anode and the proton exchange membrane, between negative electrode and the proton exchange membrane, between anode and the battery container and between negative electrode and the battery container.
4, battery according to claim 1, wherein, described battery also comprises anode flow field and/or cathode diversion plate, described anode flow field is between anode and battery container, described cathode diversion plate is between negative electrode and battery container, and the part that described conducting-heat elements is positioned at battery container is positioned at descends one of column position at least: between anode flow field and the battery container, between cathode diversion plate and the battery container, between anode and the anode flow field and between negative electrode and the cathode diversion plate.
5, according to any described battery among the claim 1-4, wherein, described conducting-heat elements is a sheet.
6, battery according to claim 5, wherein, described conducting-heat elements is positioned on the part of battery container and is distributed with through hole.
7, battery according to claim 6, wherein, the area of described through hole is the 5-20% of the area of the described conducting-heat elements part that is positioned at battery container.
8, battery according to claim 5, wherein, the thickness of described conducting-heat elements is the 0.05-30 millimeter.
9, battery according to claim 3, wherein, the part of described conducting-heat elements in battery container is between anode and the proton exchange membrane and/or between negative electrode and the proton exchange membrane, and antioxidation coating is also contained on the surface of conducting-heat elements; The part of described conducting-heat elements in battery container is between anode and battery container, and hydrophilic layer is also contained on the surface of conducting-heat elements; The part of described conducting-heat elements in battery container is between negative electrode and battery container, and water-repellent layer is also contained on the surface of conducting-heat elements.
10, battery according to claim 4, wherein, the part of described conducting-heat elements in battery container is between anode and the proton exchange membrane and/or between negative electrode and the proton exchange membrane, and antioxidation coating is also contained on the surface of conducting-heat elements; The part of described conducting-heat elements in battery container is at least between anode and the battery container, between anode and the anode flow field or between anode flow field and the battery container, hydrophilic layer is also contained on the surface of conducting-heat elements; The part of described conducting-heat elements in battery container is at least between the negative electrode utmost point and the battery container, between negative electrode and the cathode diversion plate or between cathode diversion plate and the battery container, water-repellent layer is also contained on the surface of conducting-heat elements.
11, battery according to claim 1, wherein, described anode comprises gas diffusion layers, Catalytic Layer and anode-supported material, described negative electrode comprises gas diffusion layers, Catalytic Layer and cathode support material, and described conducting-heat elements is positioned at the part of battery container as anode-supported material and/or cathode support material.
12, battery according to claim 1, wherein, described battery also comprises anode flow field and/or cathode diversion plate, described anode flow field is between anode and battery container, described cathode diversion plate is between negative electrode and battery container, and described conducting-heat elements is positioned at the part of battery container as anode flow field and/or cathode diversion plate.
13, battery according to claim 1, wherein, described membrane electrode is the mea that comprises anode, negative electrode and the proton exchange membrane between anode and negative electrode that comprises a plurality of mutual series connection, described a plurality of membrane electrodes are contained in the battery container simultaneously.
14, battery according to claim 13, wherein, described mea comprises 2-200 membrane electrode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100907550A CN101098018A (en) | 2006-06-30 | 2006-06-30 | Organic fuel cell |
| PCT/CN2007/000972 WO2008003206A1 (en) | 2006-06-30 | 2007-03-26 | An organic fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100907550A CN101098018A (en) | 2006-06-30 | 2006-06-30 | Organic fuel cell |
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| CN101098018A true CN101098018A (en) | 2008-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100907550A Pending CN101098018A (en) | 2006-06-30 | 2006-06-30 | Organic fuel cell |
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| Country | Link |
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| CN (1) | CN101098018A (en) |
| WO (1) | WO2008003206A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921059A (en) * | 2019-03-28 | 2019-06-21 | 浙江高成绿能科技有限公司 | A kind of air-cooled cathode closed-type fuel cell system of simplification |
| CN110649296A (en) * | 2019-09-30 | 2020-01-03 | 西安新衡科测控技术有限责任公司 | Self-adaptive power adjustment method for HT-PEM (high-temperature proton exchange membrane) methanol-water fuel cell |
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|---|---|---|---|---|
| TWI394313B (en) * | 2009-10-12 | 2013-04-21 | Toplus Energy Corp | Bipolar plate of fuel cell |
| CN106025345B (en) * | 2016-07-01 | 2019-03-05 | 浙江天能能源科技股份有限公司 | A kind of lithium ion battery |
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| JPS6158173A (en) * | 1984-08-29 | 1986-03-25 | Shin Kobe Electric Mach Co Ltd | Liquid fuel cell |
| DE10015829B4 (en) * | 2000-03-30 | 2005-02-24 | Fujitsu Siemens Computers Gmbh | Cooling arrangement, for electrical appliances |
| FR2827427B1 (en) * | 2001-07-12 | 2003-11-28 | Commissariat Energie Atomique | FUEL CELL WITH OPTIMIZED THERMAL MANAGEMENT |
| CN2701083Y (en) * | 2004-04-14 | 2005-05-18 | 上海神力科技有限公司 | A fuel cell with high power density self-dissipating heat and self-humidification |
| CN100517826C (en) * | 2004-04-14 | 2009-07-22 | 上海神力科技有限公司 | Self heat radiation and self wetting fuel cell stack with high power density |
| US20050244689A1 (en) * | 2004-04-28 | 2005-11-03 | Munehisa Horiguchi | Separator and fuel cell system using that separator |
| CN2731734Y (en) * | 2004-08-10 | 2005-10-05 | 长沙丰日电气集团有限公司 | Flow field plate for hydrogen air fuel cell |
| TWM273827U (en) * | 2005-02-24 | 2005-08-21 | Antig Tech Co Ltd | Composite material chute plate for fuel cell |
| CN2772042Y (en) * | 2005-03-04 | 2006-04-12 | 胜光科技股份有限公司 | Composite material passageway plate for fuel cell |
| CN2791893Y (en) * | 2005-04-05 | 2006-06-28 | 胜光科技股份有限公司 | Passageway plate for fuel cell |
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2006
- 2006-06-30 CN CNA2006100907550A patent/CN101098018A/en active Pending
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2007
- 2007-03-26 WO PCT/CN2007/000972 patent/WO2008003206A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921059A (en) * | 2019-03-28 | 2019-06-21 | 浙江高成绿能科技有限公司 | A kind of air-cooled cathode closed-type fuel cell system of simplification |
| CN109921059B (en) * | 2019-03-28 | 2023-11-24 | 浙江高成绿能科技有限公司 | Simplified air-cooled cathode closed fuel cell system |
| CN110649296A (en) * | 2019-09-30 | 2020-01-03 | 西安新衡科测控技术有限责任公司 | Self-adaptive power adjustment method for HT-PEM (high-temperature proton exchange membrane) methanol-water fuel cell |
| CN110649296B (en) * | 2019-09-30 | 2022-04-29 | 西安新衡科测控技术有限责任公司 | Self-adaptive power adjustment method for HT-PEM (high-temperature proton exchange membrane) methanol-water fuel cell |
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| WO2008003206A1 (en) | 2008-01-10 |
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