CN1549369A - Fuel battery with new fuel box structure - Google Patents
Fuel battery with new fuel box structure Download PDFInfo
- Publication number
- CN1549369A CN1549369A CNA031297382A CN03129738A CN1549369A CN 1549369 A CN1549369 A CN 1549369A CN A031297382 A CNA031297382 A CN A031297382A CN 03129738 A CN03129738 A CN 03129738A CN 1549369 A CN1549369 A CN 1549369A
- Authority
- CN
- China
- Prior art keywords
- fuel
- tank
- generator
- powder
- water
- 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.)
- Pending
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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The present invention relates to a fuel cell with new type fuel tank structure, and its structure includes power generator, its fuel tank, fuel supplying line for supplying fuel to power generator, fuel recovering line, air supplying line and air discharging line, and the described fuel tank mainly includes water tank for storing water, powder tank for storing powdered fuel and mixing tank capable of mixing the above-mentioned water and powdered fuel before power generation of power generator, heating them and making them react to obtain boron hydride (BH4) aqueous solution, and heating it to a certain temp. and conveying it into power generator, so that it can ensure the working performance and effect of the fuel cell when which is driven in first sage.
Description
Technical Field
The present invention relates to a fuel cell for generating electricity by an electrochemical reaction between air and fuel supplied from the outside, and more particularly to a fuel cell having a novel fuel tank structure
Background
A typical fuel cell is a device that directly converts energy of fuel into electric energy, and in this fuel cell system, an anode and a cathode are generally bonded to both sides of a polymer electrolyte membrane, an electrochemical oxidation reaction of fuel hydrogen is generated in the anode (an oxidation electrode or a fuel electrode), and an electrochemical reduction reaction of oxygen is generated in the cathode (a reduction electrode or an air electrode), and at this time, electrons are generated, and the electrons are moved to generate electric energy.
The hydrogen supplied to the fuel cell is Liquefied Natural Gas (LNG), Liquefied Petroleum Gas (LPG), or methanol (CH)3Hydrocarbon group (CH series) fuel such as OH) and gasoline is subjected to desulfurization in a reformer → reforming reaction → hydrogen refining to obtain refined hydrogen (H)2) Used in gaseous form. Proton exchange membrane fuel cell using BH in solid state4 -The aqueous solution is used directly in boron fuel cells and the like.
In the following, the structure of the boron fuel cell is briefly explained:
as shown in fig. 1, the overall structure of the fuel cell 1 is: one side of the generator 2 is provided with BH storing aqueous solution4 -0The fuel tank 3 of (1) has a fuel supply line 4 and a fuel recovery line 5 connected between the fuel tank 3 and the anode of the generator 2, and the fuel supply line 4 is provided with a fuel pump 6 and a heater 7 for heating the fuel for sucking and delivering the fuel.
An air supply line 8 and an air discharge line 9 are provided on the cathode of the generator 2, and an air compressor 10 is provided on the air supply line 8 for supplying air.
After the fuel cell of the above-described conventional structure is turned on, the fuel pump 6 pumps BH in an aqueous solution state stored in the fuel tank 34 -Is drawn off and supplied to the anode of the generator 2 via the fuel supply line 4, while at the same time the air compressor 10 is also started, supplying air to the cathode of the generator 2 via the air supply line 8. The air supplied at this time is supplied in a state heated to a certain temperature by the heater 7.
As described above, BH in an aqueous solution state supplied to the generator 24 -The electrochemical oxidation reaction of hydrogen with air proceeds at the anode of the generator 2, the electrochemical reduction reaction of oxygen proceeds at the cathode, the electrons thus generated move to generate electricity, and the generated electricity is collected as energy at a collector plate (not shown).
The reaction formula in this case is E0＝1.64V
As described above, the performance at the time of initial driving can be ensured only by mounting the heater 7 on the conventional fuel cell 1, but the provision of the heater 7 not only increases the manufacturing cost but also imposes certain restrictions on the size reduction of the entire device.
Disclosure of Invention
It is an object of the present invention to overcome the above-described drawbacks of the prior art and to provide a fuel cell having a novel fuel tank structure capable of ensuring the initial operating performance of power generation without providing a heater
The technical scheme adopted by the invention for solving the technical problems is as follows: a fuel cell with a novel fuel tank structure comprises: a generator for generating electricity by an electrochemical reaction of fuel and air; a fuel tank arranged at a certain distance from the generator; a fuel supply line connecting both ends of the fuel tank and the anode inlet of the generator and supplying fuel to the generator; a fuel recovery line connecting the fuel tank and an anode outlet of the generator and recovering fuel after reaction from the generator; an air supply line connected to an inlet of a cathode of the generator and supplying air; an air discharge line connected to a cathode outlet of the generator and discharging air, the fuel tank mainly including: a water tank for storing water; a powder tank for storing fuel in a powder state; the mixed water in the water tank and the fuel in the powder tank can be stored, and the mixed water and the powder fuel are mixed and heated to a certain temperature before power generation is performed on the generator, so that the mixed water and the powder fuel are supplied to the generator.
Theinvention has the beneficial effects that: the fuel tank structure of the fuel cell of the invention is composed of a water tank for storing water alone, a powder tank for storing powder fuel, and a mixing tank for mixing the water and the powder fuel. Before the generator 101 generates electricity, water and powdered fuel are mixed in a mixing tank and react to generate heat while Boron Hydride (BH) in an aqueous solution state4) The fuel cell is heated to a predetermined temperature and then fed to a generator, so that the operation performance and effect of the fuel cell at the initial driving can be ensured.
Drawings
FIG. 1 is a schematic structural view of a conventional fuel cell;
FIG. 2 is a schematic structural view of one embodiment of a fuel cell of the present invention;
FIG. 3 is an enlarged longitudinal cross-sectional view of a single cell of the present invention;
fig. 4 is a schematic sectional view of a fuel tank according to another embodiment of the present invention.
Detailed Description
Embodiments of the invention are described in further detail below with reference to the following figures:
a fuel cell with a novel fuel tank structure comprises: a generator for generating electricity by an electrochemical reaction of fuel and air; a fuel tank arranged at a certain distance from the generator; a fuel supply line connecting both ends of the fuel tank and the anode inlet of the generator and supplying fuel to the generator; a fuel recovery line connecting the fuel tank and an anode outlet of the generator and recovering fuel after reaction from thegenerator; an air supply line connected to an inlet of a cathode of the generator and supplying air; an air discharge line connected to a cathode outlet of the generator and discharging air, the fuel tank 102 mainly includes: a water tank 111 for storing water; a powder tank 112 for storing fuel in a powder state; it is possible to store the water of the water tank 111 after mixing and the fuel of the storage powder tank 112, and mix the water with the powder fuel before generating electricity at the generator and heat the mixed tank 113 to a certain temperature to supply to the generator.
The fuel for the powder tank 112 is sodium hydroxide (NaOH) and sodium borohydride (NaBH)4)。
The fuel tank 102 is provided with a detachable partition plate 132 inside a body 131 having a certain space, a mixing chamber 133 is formed in the middle after the partition, a water storage chamber 134 for storing water is formed at one side of the mixing chamber 133, and a powder storage chamber 135 for storing powder fuel is formed at the other side.
Fig. 2 is a structural diagram of a fuel cell including the fuel tank structure of the present invention.
According to the drawings, the structure of the fuel cell 100 having a novel fuel tank structure of the present invention includes: by BH in aqueous solution4A generator 101 for generating electricity by electrochemical reaction with air; the generator 101 is provided with a state BH for supplying an aqueous solution to the anode of the generator 1014The fuel tank 102; fuelA fuel supply line 4 for supplying fuel is connected to a lower portion of the tank 102 and an inlet of an ANODE (ANODE) of the generator 101, a fuel recovery line 5 for recovering fuel after reaction is connected to an outlet of the ANODE and an upper portion of the fuel tank 102, and a fuel pump 6 for sucking fuel from the fuel tank 102 is provided on the fuel supply line 103.
An air supply line 8 capable of supplying air is provided at the inlet of the cathode of the generator 101, an air discharge line 9 capable of discharging air after reaction is provided at the outlet of the cathode, and an air compressor 10 for supplying air is provided at the air supply line 8.
The fuel tank 102 includes: a water tank 111 for storing water and a pulverized fuel tank 112 for storing pulverized fuel formed of NaOH + NaBH 4; a mixing tank 113 for mixing the water stored in the water tank 111 with the pulverized fuel stored in the powder tank 112 before the power generation by the generator 101; the water tank 111 and the powder tank 112 are connected to a mixing tank 113 via a water supply line 114 and a powder supply line 115, respectively, and valves 116/116' (not shown) are provided in the water supply line 114 and the powder supply line 115, respectively.
Fig. 3 is a single battery structure of the generator 101, which mainly includes: the middle is an electrolyte membrane 121, and the two sides are an anode 122 and a cathode 123; the electrolyte membrane 121, the anode 122 and the cathode 123 are combined to form a membrane-electrode combination 124; the membrane-electrode combination 124 is assembled on two sides tightly and forms a channel 125 for fuel gas and oxygen-containing gas of the anode 122 and the cathode 123 together with the separators 126 on the two sides; on either side of separator 126 is collector plate 127 for the collector of anode 122 and cathode 123.
The electrolyte membrane 121 of the membrane-electrode assembly 124 is an ion exchange membrane made of a polymer material, and a commercially available fluorine polymer membrane manufactured by Teflon (Teflon) corporation has been formed as the electrolyte membrane 121, which functions as a carrier of hydrogen ions and also prevents contact of oxygen with hydrogen, and the anode 122 and the cathode 123 are supports of a hydrogen storage alloy-forming catalyst layer. A porous type carbon paper or carbon cloth is bonded to both sides of the electrolyte membrane 121.
The partition plate 126 is formed of a precision carbon plate, and a plurality of passage grooves 126a for allowing a fluid to flow are formed on the inner side.
The current collecting plate 127 is preferably made of a material having excellent electrical conductivity and corrosion resistance. Specifically, any of titanium, stainless steel, copper, and the like, which can satisfy the above-described required properties, may be used.
The operation of an embodiment of a fuel cell having a novel fuel tank structure constituting the present invention will be described below:
a fuel cell having a novel fuel tank structure, wherein a switch for operating a device is first turned on, a valve 116/116' is opened, water stored in a water tank 111 and pulverized fuel stored in a powder tank 112 are supplied to a mixing tank 113 through a water supply line 114 and a powder supply line 115, and heat is generated when the water and the fuel are mixed in the mixing tank 113 to bring BH in an aqueous solution state4To achieve a certain levelTemperature, fuel pump 6 sucks BH in an aqueous solution state stored in fuel tank 1024 -And then supplied to anode 122 of generator 101 through fuel supply line 4.
The air compressor 110 supplies air to the cathode 123 of the generator 101 through the air supply line 8. BH in the form of a supplied aqueous solution4The channel 125 formed on the outer side surface of the anode 122 along the electrolyte membrane 121 as a center flows and diffuses; and air is formed along the outer side of the cathode 123The channels 125 run and spread. At this time, an electrochemical oxidation reaction proceeds at the anode 122, and an electrochemical reduction reaction proceeds at the cathode 123, whereby electrons in the reaction process move to generate electricity. The generated electricity is collected by the collector plate 127 to become a usable power source.
The reaction formula of the reaction generated in the generator 101 is:
anode: E0＝1.24V
cathode: 2O2+4H2O+8e-→BOH-E0＝0.4V
Totaling: E0＝1.64V
that is, in the present invention, before starting the generator 101, the fuel and water in the powder state are mixed in the mixing tank 113 to form the liquid BH4Reacting to generate heat during mixing to form BH in an aqueous solution4Since the fuel is heated to a constant temperature and supplied to the generator 101, the fuel cell can be operated at the initial driving without additionally providing a heater for heating the fuel.
Fig. 4 is a schematic sectional view of a fuel tank according to another embodiment of the present invention, in which an inner space of a body 131 of the fuel tank 102 is partitioned by a partition plate 132 detachably provided, a mixing chamber 133 is formed in the middle, a water storage chamber 134 for storing water is formed at one side, and a powder storage chamber 135 for storing powdered fuel is formed at the other side.
As described above, the fuel tank of this embodiment, the water storage chamber of the fuel tank 102134, a powder storage chamber 135, a separator 132, and a powder fuel are removed before the generator generates electricity, and the water and the powder fuel stored separately from each other are mixed to form BH in an aqueous solution state4After the reaction, heat is generated, and BH in the state of aqueous solution4When the fuel cell is heated to a predetermined temperature, the fuel cell is supplied to the generator 101, and the operation performance of the fuel cell at the initial driving can be ensured.
Claims (3)
1. A fuel cell with a novel fuel tank structure comprises: a generator for generating electricity by an electrochemical reaction of fuel and air; a fuel tank arranged at a certain distance from the generator; a fuel supply line connecting both ends of the fuel tank and the anode inlet of the generator and supplying fuel to the generator; a fuel recovery line connecting the fuel tank and an anode outlet of the generator and recovering fuel after reaction from the generator; an air supply line connected to an inlet of a cathode of the generator and supplying air; an air discharge line connected to a cathode outlet of the generator and discharging air, characterized in that the fuel tank (102) mainly comprises: a water tank (111) for storing water; a powder tank (112) for storing fuel in a powder state; the mixed water in the water tank 111 and the fuel in the powder tank 112 can be stored, and the mixed water and the powder fuel are mixed before power generation is performed on the generator, and the mixed water and the powder fuel are heated to a certain temperature and supplied to the generator 113.
2. A fuel cell according to claim 1, characterized in that the fuel in the powder tank (112) is sodium hydroxide (NaOH) or sodium borohydride (NaBH)4)。
3. The fuel cell according to claim1, wherein the fuel tank (102) is provided with a detachable partition plate (132) inside a body (131) having a certain space, a mixing chamber (133) is formed in the middle after the partition, a water storage chamber (134) for storing water is formed at one side of the mixing chamber (133), and a powder storage chamber (135) for storing the powder fuel is formed at the other side thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031297382A CN1549369A (en) | 2003-05-13 | 2003-05-13 | Fuel battery with new fuel box structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031297382A CN1549369A (en) | 2003-05-13 | 2003-05-13 | Fuel battery with new fuel box structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1549369A true CN1549369A (en) | 2004-11-24 |
Family
ID=34322422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031297382A Pending CN1549369A (en) | 2003-05-13 | 2003-05-13 | Fuel battery with new fuel box structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1549369A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100379074C (en) * | 2004-12-31 | 2008-04-02 | 三星Sdi株式会社 | Liquid fuel mixing apparatus and direct liquid feed fuel cell system including the same |
| CN101395752B (en) * | 2005-11-09 | 2011-07-06 | 霍尼韦尔国际公司 | Water reclamation in a micropower generator |
-
2003
- 2003-05-13 CN CNA031297382A patent/CN1549369A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100379074C (en) * | 2004-12-31 | 2008-04-02 | 三星Sdi株式会社 | Liquid fuel mixing apparatus and direct liquid feed fuel cell system including the same |
| US7622213B2 (en) | 2004-12-31 | 2009-11-24 | Samsung Sdi Co., Ltd. | Liquid fuel mixing apparatus and direct liquid feed fuel cell system including the same |
| CN101395752B (en) * | 2005-11-09 | 2011-07-06 | 霍尼韦尔国际公司 | Water reclamation in a micropower generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1753225A (en) | Reforming device and fuel cell system with same | |
| KR100859458B1 (en) | Stack structure for fuel cell | |
| CN1474471A (en) | Fuel cell device | |
| CN1549369A (en) | Fuel battery with new fuel box structure | |
| KR100531824B1 (en) | Fuel circulation control apparatus of fuel cell system | |
| KR100464051B1 (en) | Fuel cell system | |
| KR100864654B1 (en) | Fuel tank structure of fuel cell | |
| KR100524721B1 (en) | Fuel tank of fuel cell system | |
| CN1612384A (en) | Fuel cell system with water collecting device | |
| CN1612398A (en) | Water supply device for fuel cell system | |
| CN1612393A (en) | Fuel recovery regulating device for fuel cell system | |
| KR100829428B1 (en) | Fuel tank for fuel cell | |
| KR100539753B1 (en) | Water supply apparatus of fuel cell system | |
| CN100399615C (en) | Cooling-humidifying device for fuel cell | |
| KR100533008B1 (en) | Fuel cell system having water trap apparatus | |
| KR100830939B1 (en) | Apparatus for removing hydrogen gas of fuel cell | |
| CN1532980A (en) | Fuel cell system | |
| CN100341183C (en) | Battery pile structure of fuel cell with boron compound as fuel | |
| KR20040000556A (en) | Fuel tank for fuel cell | |
| KR20040074730A (en) | Boron fuel cell system | |
| CN1532975A (en) | Fuel cell system with boron compound as fuel | |
| CN1532976A (en) | Fuel cell system | |
| CN117317323A (en) | Direct liquid fuel cell system | |
| CN1549381A (en) | Hydrogen removing device for boron compound fuel cell | |
| CN1549382A (en) | Fuel cell with fuel reutilizing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |