CN1327558C - Fuel battery having gas-liquid isolating structure - Google Patents
Fuel battery having gas-liquid isolating structure Download PDFInfo
- Publication number
- CN1327558C CN1327558C CNB2004100347899A CN200410034789A CN1327558C CN 1327558 C CN1327558 C CN 1327558C CN B2004100347899 A CNB2004100347899 A CN B2004100347899A CN 200410034789 A CN200410034789 A CN 200410034789A CN 1327558 C CN1327558 C CN 1327558C
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- Prior art keywords
- fuel cell
- separator
- liquid
- gas
- core component
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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
- Y02E60/10—Energy storage using batteries
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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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Abstract
The present invention relates to a fuel battery with a gas-liquid isolating structure, which comprises a fuel battery core and an isolating layer assembly, wherein the fuel battery core is used for generating electricity through the electrochemical action; an isolating layer is a ventilating liquid-tight porous film layer which is arranged in the fuel battery; the isolating layer is used for isolating a liquid which has an electrochemical action on the fuel battery core assembly from a liquid generated after the electrochemical action, and for enabling a gas which has an electrochemical action on the fuel battery core assembly and a gas generated after the electrochemical action to penetrate through the isolating layer so as to achieve the functions of water prevention, leakage prevention, liquid leakage prevention, etc.
Description
Technical field
The invention relates to a kind of fuel cell, particularly utilize the thin layer material of the made from porous material of gas-permeable, liquid-impermeable,, make its fuel cell in order to form separator, can reach waterproof simultaneously, prevent leak of liquid, and get rid of the gas person who is generated behind the fuel cell reaction.
Background technology
Known fuel cell is to supply hydrogen-containing fuel respectively and contain the oxygen air in electrolyte ion exchange membrane both sides, makes through after the redox reaction, and forms current circuit, in order to the need of power supply to be provided.Has liquid fuel in the required reactant of this types of fuel cells, as methanol fuel, and reacted main product is water and carbon dioxide, make fuel cell must have the liquid object of preventing and leak to the electronic installation that uses, and yet need to discharge generate gas and keep air constituent stable in the fuel cell and normality pressure person.Yet the fuel cell of commonly using normally utilizes the design of mechanism structure, as pressure relieving valve, handles such problem, but the design of this class, the restriction that often has the directivity of use, and also can influence to some extent for the design on the fuel cell structure.
The present inventor is based on the shortcoming of commonly using fuel cell, is urgently think invention and improve, and invents out a kind of fuel cell that possesses the gas-liquid isolation structure.
Summary of the invention
Main purpose of the present invention provides a kind of fuel cell, and it can have waterproof simultaneously, prevents leak of liquid and get rid of the function that generates gas.
For reaching above-mentioned purpose of the present invention, the invention provides a kind of fuel cell that possesses the gas-liquid isolation structure and comprise: a fuel cell core component is in order to produce electric power via electrochemical action; One separator, it is the porous film layer that is arranged at a gas-permeable, liquid-impermeable of fuel battery inside, and be with so that the liquid that electrochemical action is generated after the liquid of fuel cell core component and electrochemical action is all intercepted by separator, and with so that all penetrable this separator of gas that electrochemical action is generated after the gas of fuel cell core component and electrochemical action is reached functions such as waterproof, leakproof, anti-leaked liquid by this.
Be familiar with this technology personage and understand purpose of the present invention, feature and effect for making,, and cooperate appended accompanying drawing now by following specific embodiment, to the present invention illustrate in detail as after.
Description of drawings
Fig. 1 shows that the present invention possesses the structural representation of the fuel cell of gas-liquid isolation structure.
Fig. 2 shows that the present invention implements the sectional drawing of example according to the fuel cell of Fig. 1 structure.
Fig. 3 A shows that separator of the present invention is arranged on the specific embodiment of the upper surface of anode fuel feed unit.
Fig. 3 B shows that separator of the present invention is arranged on the specific embodiment of the lower surface of anode fuel feed unit.
Fig. 3 C shows that separator of the present invention is arranged on the specific embodiment of side all around of anode fuel feed unit.
Fig. 4 A shows that separator of the present invention is arranged on the specific embodiment of the upper surface of cathode fuel supply unit.
Fig. 4 B shows that separator of the present invention is arranged on the specific embodiment of the lower surface of cathode fuel supply unit.
Fig. 4 C shows that separator of the present invention is arranged on the specific embodiment of side all around of cathode fuel supply unit.
Fig. 5 demonstration is arranged at separator respectively the upper surface and the lower surface of anode current collection layer and negative electrode current collection layer according to spirit of the present invention.
Among the figure
10 fuel cells
11 fuel cell core components
13 anode fuel feed units
The 13a inlet
15 cathode fuel supply unit
21 separators
23 separators
25,26,27,28 separators
111 anode current collection layers
The 111a through hole
The 111b through hole
113 matter pass electrolyte layers
The 113a cell of fuel cell
115 current collection layers
The 115a through hole
The 115b through hole
Embodiment
Fig. 1 shows that the present invention possesses the structural representation of the fuel cell of gas-liquid isolation structure, a kind of fuel cell 10 that possesses the gas-liquid isolation structure provided by the present invention, it mainly is that separator 21,23 is set in fuel cell 10, provide isolated fuel liquid to penetrate, but still can penetrating gas, prevent leak of liquid and reach simultaneously, and allow the gas that generates behind the fuel cell reaction pass through, can make that the pressure in the fuel cell 10 are kept normality person.Fuel cell 10 of the present invention mainly includes: fuel cell core component 11, anode fuel feed unit 13 and cathode fuel supply unit 15.Fuel cell core component 11 is combined by anode current collection layer 111, matter biography electrolyte layers 113 and negative electrode current collection layer 115.In Fig. 1, matter passes electrolyte layers 113 both sides storehouse anode current collection layer 111 and negative electrode current collection layer 115 respectively, and some cell of fuel cell 113a of matter biography electrolyte layers 113 are the effect of carrying out electrochemical reaction, and gather electric current at anode current collection layer 111 and negative electrode current collection layer 115 respectively.Anode fuel feed unit 13 is the anode taps that are engaged in fuel cell core component 11, provides and import the anode tap of anode fuel to fuel cell core component 11.Cathode fuel supply unit 15 is the cathode terminals that are engaged in fuel cell core component 11, provides and import the cathode terminal of negative electrode fuel to fuel cell core component 11.Separator the 21, the 23rd is arranged in anode fuel feed unit 13 or the cathode fuel supply unit 15, and separator 21,23 can adopt the porous film layer of gas-permeable, liquid-impermeable, by the physical characteristic of this kind porous film layer, allow fuel cell 10 can reach waterproof, leakproof, prevent inner functions such as leaked liquid.
Fig. 2 shows that the present invention implements the sectional drawing of example according to the fuel cell of Fig. 1 structure.In the direct methanol fuel cell 10 of Fig. 2, the concrete aspect of anode fuel feed unit 13 can be a flow field member, for example by flow field member that fuel bath and fuel flow channel constituted, by the methanol solution anode fuel that anode fuel feed unit 13 injects from inlet 13a, the methanol solution anode fuel after the injection is supplied to the anode tap of each cell of fuel cell 113a more maturely via through hole 111a.Separator 21 is arranged on the anode fuel feed unit 13, set position can be the upper surface that is positioned at anode fuel feed unit 13, lower surface or side all around, please is arranged on specific embodiment on the anode fuel feed unit referring to the shown separator of Fig. 3 A to Fig. 3 C respectively.By means of the physical characteristic of the porous film layer of separator 21, Liu Tong methanol solution all can be completely cut off by separator 21 and can't exosmose to anode fuel supply unit 13 external worlds everywhere.Simultaneously, the carbon dioxide that cell of fuel cell 113a is produced after anode tap is because of chemical reaction all can pass through separator 21, and then overflows extraneous via gas escape orifice (figure does not show).
In the direct methanol fuel cell 10 of Fig. 2, separator 23 is arranged on the cathode fuel supply unit 15, set position can be the upper surface that is positioned at cathode fuel supply unit 15, lower surface or side all around, please is arranged on specific embodiment on the cathode fuel supply unit referring to the shown separator of Fig. 4 A to Fig. 4 C respectively.By means of the physical characteristic of the porous film layer of separator 23, extraneous air (or oxygen) can pass through separator 23, again via through hole 115a, arrives at last to the cathode terminal of each cell of fuel cell 113a.Simultaneously, the moisture content that cell of fuel cell 113a is produced after cathode terminal is because of chemical reaction all can be completely cut off by separator 23 and can't exosmose to negative electrode fuel supply unit 15 external worlds, and then is discharged outside to via moisture content escape orifice (figure does not show).
Fig. 5 demonstration is arranged at separator respectively the upper surface and the lower surface of anode current collection layer and negative electrode current collection layer according to spirit of the present invention.According to spirit of the present invention, the present invention can be arranged at separator 25 upper surface of negative electrode current collection layer 115, perhaps separator 26 is arranged at the lower surface of negative electrode current collection layer 115, similarly or with separator 27 be arranged at the lower surface of anode current collection layer 111, perhaps separator 28 be arranged at the upper surface of anode current collection layer 111.Pass the gas (for example carbon dioxide) that is produced after electrolyte layers 113 electrochemical actions in matter, can via through holes 111b and separator 27,28 outwards circulate.Pass the liquid (for example moisture content) that is produced after electrolyte layers 113 electrochemical actions in matter,, and can't outwards overflow from through hole 115b because can be isolated by separator 25,26.
Separator of the present invention is in above-mentioned disclosed position, be only to be example explanation of the present invention, according to spirit of the present invention, all to be familiar with this technology personage be other position that separator can be arranged at fuel cell, and this variation of thought still belongs within the category of the present invention.
The material that separator of the present invention adopted, PTFE (Poly tetrofluoroethylene) polytetrafluoroethylene film for example, all porous materials that possesses gas-permeable, liquid-impermeable all can be adopted by the present invention.
Moreover, because the effect of separator ventilation allows fuel cell 10 of the present invention can keep normality pressure inner with outside air pressure.
According to spirit of the present invention, separator of the present invention is except being arranged on above-mentioned the exposure the position that illustrates, certainly separator can also be set to other position of fuel cell 10 inside, for example be arranged on air exit, it is used for preventing that extraneous liquid from damaging fuel cell 10 from this air exit inflow.
Fuel cell of the present invention is owing to possess the gas-liquid isolation structure, and can reach following effect:
1. the gas-liquid isolation structure of fuel cell of the present invention, it utilizes the made from porous material separator that formed thin layer forms of gas-permeable, liquid-impermeable, can reach the fuel liquid that prevents fuel cell easily and leak, gets rid of the gas of chemical reaction generation and can make purposes such as extraneous air enters simultaneously.
2. in the gas-liquid isolation structure of fuel cell of the present invention, it has the structure of gas-permeable, liquid-impermeable, can prevent that fuel liquid from leaking, and makes more to be able to specific implementation at the inner installing of electronic installation fuel cell as internal electric source.
3. in the gas-liquid isolation structure of fuel cell of the present invention, it has the structure of gas-permeable, liquid-impermeable, can both get rid of generation gas in any installing angle, and the leakage of the neither anxiety liquid of any direction takes place, therefore, the use of fuel cell can not be subjected to installing aspect effect, makes that the use of fuel cell can be more extensive.
4. in the gas-liquid isolation structure by fuel cell of the present invention, use a film separator, under the structure that does not influence the original design of fuel cell, can easily reach the structure of a gas-permeable, liquid-impermeable, and can not make fuel cell increase too many volume.
Though the present invention discloses as above with a specific embodiment; right its is not in order to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations; its change of doing all belongs to category of the present invention with retouching, and protection scope of the present invention is as the criterion when looking the accompanying Claim protection range person of defining.
Claims (5)
1. the fuel cell of gas-liquid isolation structure comprises:
One fuel cell core component, it is in order to produce electric power via electrochemical action, and wherein this fuel cell core component is to comprise an anode current collection layer, matter biography electrolyte layers, a negative electrode current collection layer;
One separator, it is arranged at the porous film layer of a gas-permeable, liquid-impermeable of this fuel battery inside, and with so that the liquid that electrochemical action is generated after the liquid of this fuel cell core component and electrochemical action is all intercepted by separator, and with so that all penetrable this separator of gas that electrochemical action is generated after the gas of this fuel cell core component and electrochemical action, reach waterproof, leakproof, anti-leaked liquid function by this
Wherein this separator is upper surface and/or the lower surface that is arranged at this negative electrode current collection layer and/or this anode current collection layer.
2. fuel cell as claimed in claim 1, wherein this fuel cell has a direct methanol fuel cell core component.
3. fuel cell as claimed in claim 2, wherein this separator is to use so that outside air can pass through this separator, and in order to prevent that the moisture content after the effect leaks to the external world in this direct methanol fuel cell core component.
4. fuel cell as claimed in claim 2, wherein this separator is to use so that the carbon dioxide that is generated after this direct methanol fuel cell core component effect can pass through this separator.
5. fuel cell as claimed in claim 1, wherein separator is a polytetrafluoroethylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100347899A CN1327558C (en) | 2004-05-17 | 2004-05-17 | Fuel battery having gas-liquid isolating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100347899A CN1327558C (en) | 2004-05-17 | 2004-05-17 | Fuel battery having gas-liquid isolating structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1700493A CN1700493A (en) | 2005-11-23 |
| CN1327558C true CN1327558C (en) | 2007-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100347899A Expired - Fee Related CN1327558C (en) | 2004-05-17 | 2004-05-17 | Fuel battery having gas-liquid isolating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1327558C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024972A (en) * | 2010-11-16 | 2011-04-20 | 成都振中电气有限公司 | Fuel cell containing semipermeable membrane |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5958614A (en) * | 1996-12-27 | 1999-09-28 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Fuel cell generating set including lysholm compressor |
| JP2003317791A (en) * | 2002-04-24 | 2003-11-07 | Hitachi Maxell Ltd | Liquid fuel cell |
| JP2003331899A (en) * | 2002-05-08 | 2003-11-21 | Hitachi Maxell Ltd | Liquid fuel cell |
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2004
- 2004-05-17 CN CNB2004100347899A patent/CN1327558C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5958614A (en) * | 1996-12-27 | 1999-09-28 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Fuel cell generating set including lysholm compressor |
| JP2003317791A (en) * | 2002-04-24 | 2003-11-07 | Hitachi Maxell Ltd | Liquid fuel cell |
| JP2003331899A (en) * | 2002-05-08 | 2003-11-21 | Hitachi Maxell Ltd | Liquid fuel cell |
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| Publication number | Publication date |
|---|---|
| CN1700493A (en) | 2005-11-23 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 Termination date: 20110517 |