CN102945979B - Passive drainage fuel cell stack - Google Patents
Passive drainage fuel cell stack Download PDFInfo
- Publication number
- CN102945979B CN102945979B CN201210522050.7A CN201210522050A CN102945979B CN 102945979 B CN102945979 B CN 102945979B CN 201210522050 A CN201210522050 A CN 201210522050A CN 102945979 B CN102945979 B CN 102945979B
- Authority
- CN
- China
- Prior art keywords
- plate
- field plate
- fuel cell
- cell stack
- flow field
- 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.)
- Active
Links
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
Landscapes
- Fuel Cell (AREA)
Abstract
The invention discloses a passive drainage fuel cell stack which comprises a first end plate, a first collector plate, a single polar plate component, a first membrane electrode component, a plurality of repetitive units, a first hydrogen flow field plate, a second collector plate and a second end plate which sequentially cling to one another and are arranged in parallel, wherein the single polar plate component comprises a cooling agent plate, a water collecting plate, a hydrophilic porous gas-water separation component and an oxygen flow field plate which sequentially cling to one another and are arranged in parallel; each repetitive unit comprises a bipolar plate component and a membrane electrode component; and the bipolar plate component comprises a hydrogen flow field plate, a cooling agent plate, a water collecting plate, a hydrophilic porous gas-water separation component and an oxygen flow field plate which sequentially cling to one another and are arranged in parallel. After the passive drainage fuel cell stack is adopted, the function of passive drainage can be realized, and an external gas circulation pump and a gas-water separator which are needed by the conventional cell stack structure can be omitted, so that the number of parts of a system is reduced, the system is free from moving parts and direction sensibility, and the reliability of the system is observably improved.
Description
Technical field
The present invention relates to a kind of fuel cell pack, particularly, relate to a kind of passive drainage fuel cell stack being built-in with passive drain assembly.
Background technology
Fuel cell (Fuel Cell, FC) be a kind of novel power generation device chemistry of fuel being directly converted to electric energy by electrochemical means, there is the advantages such as energy conversion rate is high, pollution-free, abundant raw material source, forth generation generation technology after waterpower, firepower, nuclear energy of being known as.As the generation technology of a new generation, fuel cell can be widely used in the various aspects such as Portable power source, electric automobile, power station, Aero-Space and military boats and ships.
Proton Exchange Membrane Fuel Cells (Proton exchange membrane fuel cell, PEMFC) be one in fuel cell, its electrolyte is made up of solid polymer membrane, so be called again solid polymer electrolyte fuel cell (SPEFC) or solid polymer fuel cells (SPFC), having the advantages such as power density is high, working temperature is low (< 100 DEG C), the life-span is long, is study fuel cell the most widely at present.A set of PEMFC Blast Furnace Top Gas Recovery Turbine Unit (TRT) or system are made up of fuel cell pack and corresponding auxiliary system thereof.Fuel cell pack is the power conversion unit that chemical energy is converted to electric energy, and auxiliary system provides corresponding reaction medium and water, heat management, to ensure that battery pile effectively works for battery pile.
Take hydrogen as fuel, oxygen for oxidant be the optimal reactant of fuel cell, product water is also had to generate while chemical energy is converted to electric energy and used heat generation by hydrogen, oxygen electrode reaction during hydrogen oxygen fuel cell work, if the water generated is discharged (speed that the speed ideally generating water should equal to discharge water) from electrode not in time, water will gather in the electrodes, flood electrode catalyst, thus hinder the contact of reacting gas and catalyst, cause cell performance decay, even cannot normally work; Equally, the rate of discharge of used heat also should equal to produce speed, and to prevent because of heat accumulation, cell stack temperature raises and damages battery material or assembly.Therefore rational water is carried out to fuel cell pack, heat management is the important leverage that it effectively works.
PEM fuel cell heap is formed by membrane electrode assembly (MEA) and bipolar plate assembly repeatedly stacking, and wherein bipolar plate assembly is made up of Oxygen Flow field plate, coldplate, hydrogen stream field plate successively.At present, common way processes plough groove type runner on hydrogen, Oxygen Flow field plate, be used for the uniform distribution of realization response medium at anode and cathode surface, the water of fuel battery negative pole Surface Creation makes it discharge battery along runner by circulating of oxygen simultaneously, such medium circulation flowing needs external accessory (as gas circulator) to maintain certain flow velocity, also needs gas-water separation equipment to be separated water from two phase flow, to reclaim in battery pile outside simultaneously.The design of this battery structure must cause auxiliary system complicated, fuel cell system weight and volume is increased, and the use of mechanical motion parts also causes parasitic power consumption to increase, reliability, service life reduction.
Summary of the invention
The object of this invention is to provide a kind of fuel cell pack, by the design of battery pile structure, realize stack body and will generate water discharge by passive mode, thus reduce the dependence to auxiliary system to greatest extent, simplify system, improve system reliability.
In order to achieve the above object, the invention provides a kind of passive drainage fuel cell stack, wherein, this battery pile comprises the first end plate, the first collector plate, unipolar plate assembly, the first membrane electrode assembly, the first hydrogen stream field plate, the second collector plate and the second end plate being close to successively and being set up in parallel; Described unipolar plate assembly comprises coolant plate, water collecting board, hydrophilic porous gas-water separation assembly and the Oxygen Flow field plate being close to successively and being set up in parallel.
Above-mentioned passive drainage fuel cell stack, wherein, described battery pile also comprises several repetitives be interposed between the first described membrane electrode assembly and the first hydrogen stream field plate; Described repetitive comprises bipolar plate assembly and membrane electrode assembly; Described bipolar plate assembly comprises hydrogen stream field plate, coolant plate, water collecting board, hydrophilic porous gas-water separation assembly and the Oxygen Flow field plate being close to successively and being set up in parallel.
Above-mentioned passive drainage fuel cell stack, wherein, described Oxygen Flow field plate is provided with some parallel runners towards the side plate face of the second end plate, and the direction of runner is vertical with the direction of motion of fluid.The direction of motion of fluid is consistent with the major axis bearing of trend in plate face.
Above-mentioned passive drainage fuel cell stack, wherein, the cross section of the runner of described Oxygen Flow field plate is isosceles trapezoid, and trapezoidal broadside is towards membrane electrode assembly, and trapezoidal narrow limit is towards hydrophilic porous gas-water separation assembly.
Above-mentioned passive drainage fuel cell stack, wherein, the trapezoidal narrow limit place of described runner bottom it is provided with some perforates be spaced towards oxygen flow field intralamellar part along this runner.
Above-mentioned passive drainage fuel cell stack, wherein, described perforate is circular hole or the rectangular slot along runner direction, the diameter of circular hole or the width of rectangular slot identical with the length on the trapezoidal narrow limit of runner.
Above-mentioned passive drainage fuel cell stack, wherein, described perforate and the surface of runner have hydrophily.Utilize the water-wet behavior of water passage surface, by the broadside to trapezoid cross section runner, narrow limit and the size in the degree of depth and hole and the optimization of the degree of depth, the liquid globule that electrode surface can be made to generate moves in the duct on narrow limit along runner hypotenuse under capillary force effect, thus avoid water to assemble at electrode surface, be also conducive to oxygen transmission to electrode surface simultaneously.The transmitting procedure of water without the need to excessive oxygen blow, the thus emission-free discharge of battery outlet port.
Above-mentioned passive drainage fuel cell stack, wherein, described hydrophilic porous gas-water separation assembly comprises the Hydrophilized porous membrane be interposed between water collecting board and Oxygen Flow field plate and the frame being located at this perforated membrane surrounding and supporting construction.Hydrophilized porous membrane can be porous metal film, inorganic porous membrane, apertured polymeric film etc.Hydrophilized porous membrane can by water complete wetting, if the surface tension of water is greater than gas pressure, then gas can not pass through film, thus can realize the function of permeable choke, thus reach the object of gas-water separation.
Above-mentioned passive drainage fuel cell stack, wherein, described coolant plate and water collecting board are being equipped with flow field on the side plate face of the second end plate, and its form comprises the flow-field plate, the flow-field plate of spot distribution, porous media board or the corrugated plating that are provided with parallel groove.Coolant plate plays cooling effect, and water collecting board is provided with water collecting chamber, is carried out the collection of moisture by flow field.
Above-mentioned passive drainage fuel cell stack, wherein, described hydrogen stream field plate is being provided with flow field on the side plate face of the first end plate, and its form comprises the flow-field plate, the flow-field plate of spot distribution, porous media board or the corrugated plating that are provided with parallel groove.
Above-mentioned passive drainage fuel cell stack, wherein, the oxygen flow field plate runner broadside side contacts of described membrane electrode assembly cathode side and bipolar plate assembly, perforate side, oxygen flow field plate runner narrow limit and hydrophilic porous gas-water separation assembly one side contacts, hydrophilic porous gas-water separation assembly opposite side contacts with water collecting board collecting chamber, the opposite side of water collecting board contacts with coolant plate, the opposite side of coolant plate and hydrogen stream field plate contact, the flow passage side of hydrogen stream field plate contacts with the anode-side of a rear membrane electrode assembly, and such repeated arrangement just forms a battery pile.
Above-mentioned passive drainage fuel cell stack, wherein, the drainage procedure of described battery pile is: hydrogen, oxygen reacting gas enter hydrogen stream field plate and Oxygen Flow field plate respectively, and are arrived the Catalytic Layer of its anode and negative electrode by membrane electrode assembly, reacts in Catalytic Layer generating electrodes.Hydrogen, in anode generation oxidation reaction, produces electronics and proton, and electronics arrives negative electrode by external circuit to after load acting, and proton reaches negative electrode by polymer dielectric film, and at negative electrode place, oxygen is combined with proton and electronics and produces water.The water that membrane electrode cathode side generates is grown up gradually on membrane electrode assembly surface the formation globule, the runner side surface contact of the globule and Oxygen Flow field plate, adhere on flow path wall, the globule continues to become large, when the globule and runner opposite side surface contact, water passage surface is formed liquid bridge, liquid bridge rises along on runner inclined-plane under the effect of capillary force, enter in the hole on the narrow limit of runner subsequently, water in duct continues reach under the effect of capillary force, and with hydrophilic porous gas-water separation assembly one side contacts, under certain pressure reduction, water enters the water collecting chamber of water collecting board by gas-water separation assembly, then discharge battery pile from water collecting chamber.
Passive drainage fuel cell stack provided by the invention has the following advantages:
The novel battery structure of this passive draining battery pile effectively can realize the passive draining of stack body, conventional cell structure is avoided to use external accessory to carry out draining and gas-water separation, thus fuel cell system can be made more to simplify, reduce system weight, volume and parasitic power consumption, improve lifetime of system, there is higher reliability and efficiency, simultaneously directionless sensitiveness.In addition, drainage procedure take capillary force as actuating force, is also applicable to zero-g environmental work.
This passive draining battery pile is widely used, can be used for fuel cell, regenerative fuel cell, electrolytic cell etc., also can be applicable to not rely on air under water and advance (AIP) latent device power source, space device power supply, HAE aircraft power supply, stand-by power supply and regenerative fuel cell accumulation power supply.
Accompanying drawing explanation
Fig. 1 is the structural representation of passive drainage fuel cell stack of the present invention.
Fig. 2 is that the repetitive of passive drainage fuel cell stack of the present invention forms schematic diagram.
Fig. 3 is the bipolar plate assembly structural representation of passive drainage fuel cell stack of the present invention.
Fig. 4 is the cross section of fluid channel figure of the Oxygen Flow field plate of passive drainage fuel cell stack of the present invention.
Fig. 5 is the transition process schematic diagram of water in the runner of the Oxygen Flow field plate of passive drainage fuel cell stack of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
As shown in Figure 1, passive drainage fuel cell stack provided by the invention, comprise be close to successively be set up in parallel the first end plate 19, first collector plate 17, unipolar plate assembly 16, first membrane electrode assembly 141, first repetitive 15-1, the second repetitive 15-2 ..., the n-th repetitive 15-n, the first hydrogen stream field plate 61, second collector plate 18, second end plate 20.
Wherein, unipolar plate assembly 16 comprises coolant plate 5, water collecting board 4, hydrophilic porous gas-water separation assembly 3 and the Oxygen Flow field plate 2 being close to successively and being set up in parallel.Repetitive 15 comprises bipolar plate combination part 1 and membrane electrode assembly 14, shown in Figure 2.
As shown in Figure 3, bipolar plate assembly 1 comprises hydrogen stream field plate 6, coolant plate 5, water collecting board 4, hydrophilic porous gas-water separation assembly 3 and the Oxygen Flow field plate 2 being close to successively and being set up in parallel.
Wherein, the cross section of fluid channel of Oxygen Flow field plate 2 as shown in Figure 4.Runner wall is diminishing trapezoid cross section 7, trapezoidal runner 7 broadside contacts with membrane electrode assembly 14 or gas diffusion layers 9, its length is a, the opening angle of trapezoidal runner 7 is 2 α, and being spaced a distance on the narrow limit of trapezoidal runner 7 is provided with perforate 8, forms passage, the degree of depth of passage is d, the shape of perforate 8 can be circular hole or the rectangular slot along runner direction, and the size of circular hole or the width of slit are b, consistent with runner narrow hem width degree.The thickness of flow-field plate is D.The contact angle of flow path wall water is θ 1, and on membrane electrode assembly or gas diffusion layers 9, the contact angle of water is θ 2.
In runner, the available Bond number of the impact of gravity (Bond number, Bo) is weighed, and in trapezoidal runner 7, Bond number can be calculated by following formula:
In formula,
ρfor the density of water;
gfor acceleration of gravity;
σfor surface tension.
Representative value in above-mentioned formula is: D=2mm, d=1.2mm, a=1.1mm, b=0.5mm, θ 1=70 °, then Bo=0.29.In most of the cases, Bo is less than 0.35, and such runner just can overcome the impact of gravity and realize the migration in perforate 8 under the effect of capillary force of the wall of water along trapezoidal runner 7.
The drainage procedure of Oxygen Flow field plate 2 as shown in Figure 5.Water produces in fuel cell cathode catalyst layer, then the liquid globule 11,12 is formed by the channel migration in diffusion layer 9 to the surface of diffusion layer 9, the globule 11,12 is grown up gradually, when it contacts with the wall of runner 7, due to the water-wet behavior on plate material 10 surface, the globule 11,12 and wall infiltrate, and move along runner 7 wall under the effect of capillary force.The globule 11,12 continues to grow up, and when the globule 11,12 meets, now the size of the globule reaches maximum, and can think that the globule is now of a size of critical dimension, globule critical dimension is larger, and the speed that the globule removes is slower.The size of globule critical dimension is determined by wetting conditions and runner physical dimension.When forming liquid bridge 13 after the globule 11,12 meets between runner 7 liang of walls, liquid bridge 13 continues to move in perforate 8, last aqueous water discharges the hydrophilic porous gas-water separation assembly 3 entered in bipolar plate combination part 1 from perforate 8, and Oxygen Flow field plate 2 completes a drainage procedure.This process is continuously carried out, and just can realize water from the migration Oxygen Flow field plate 2.
In bipolar plate combination part 1 with Oxygen Flow field plate 2 close contact be hydrophilic porous gas-water separation assembly 3, hydrophilic porous gas-water separation assembly 3 can be porous metal film, inorganic porous membrane, apertured polymeric film etc.Hydrophilic perforated membrane can by water complete wetting, if the surface tension of water in porous separation assembly 3 is greater than oxygen operating pressure, then oxygen can not pass through porous separation assembly 3, otherwise oxygen can pass through from porous separation assembly 3.Therefore, need to control the pore size in porous separation assembly 3, and make hole be evenly distributed in porous assembly 3 as much as possible.Perforate 8 side in Oxygen Flow field plate 2 and porous separation assembly 3 one side contacts, the water cavity side contacts of the water collecting board 4 in the opposite side of porous separation assembly 3 and bipolar plate combination part 1.Water in Oxygen Flow field plate 2 in perforate 8 contacts with porous separation assembly 3, and under concentration difference or pressure differential, the duct of water in porous separation assembly 3 transfers in the water cavity of water collecting board 4.
Coolant plate 5 and water collecting board 4 are equipped with flow field on the side plate face towards the second end plate 20, and its form comprises the flow-field plate, the flow-field plate of spot distribution, porous media board or the corrugated plating that are provided with parallel groove.
Hydrogen stream field plate 6 is provided with flow field on the side plate face towards the first end plate 19, and its form comprises the flow-field plate, the flow-field plate of spot distribution, porous media board or the corrugated plating that are provided with parallel groove.
The passive drainage fuel cell stack provided by the invention passive drainage fuel cell stack course of work is as follows:
Hydrogen, oxygen reacting gas enter hydrogen stream field plate 6 and Oxygen Flow field plate 2 respectively, and arrive the Catalytic Layer of anode and negative electrode by the gas diffusion layers of membrane electrode assembly 14, react in Catalytic Layer generating electrodes.Hydrogen, in anode generation oxidation reaction, produces electronics and proton, and electronics arrives negative electrode by external circuit to after load acting, and proton reaches negative electrode by polymer dielectric film, and at negative electrode place, oxygen is combined with proton and electronics and produces water.The water that negative electrode generates forms the liquid globule 11,12 by the channel migration in diffusion layer 9 to the surface of diffusion layer 9, the globule 11,12 is grown up gradually, when it contacts with the wall of the runner 7 of Oxygen Flow field plate 2, due to the water-wet behavior on plate material 10 surface, the globule 11,12 and wall infiltrate, and move along runner 7 wall under the effect of capillary force.The globule 11,12 continues to grow up, when the globule 11,12 meets, liquid bridge 13 is formed between runner 7 liang of walls, liquid bridge 13 continues to move in perforate 8, last aqueous water arrives the side of hydrophilic porous gas-water separation assembly 3 from perforate 8, under concentration difference or pressure differential, the duct of water in porous separation assembly 3 transfers to the opposite side of gas-water separation assembly 3 and enters in the water collecting chamber of water collecting board 4, and last water is discharged to battery pile outside from water collecting chamber.This process is continuously carried out, thus realizes the balance of battery pile draining.
During passive drainage fuel cell stack work provided by the invention, hydrogen, oxygen reaction gas only need supply by stoichiometry, emission-free discharge, thus the extraneous gas circulating pump needed for conventional batteries pile structure and air-water separator can be saved, thus system part count is reduced, movement-less part, can significantly improve the reliability of system.And drainage procedure does not rely on Action of Gravity Field, therefore this battery pile can omni-directional work, and directionless sensitiveness, works under can being applicable to space microgravity environment.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. a passive drainage fuel cell stack, it is characterized in that, this battery pile comprises is close to the first end plate (19) arranged side by side, the first collector plate (17), unipolar plate assembly (16), the first membrane electrode assembly (141), the first hydrogen stream field plate (61), the second collector plate (18) and the second end plate (20) successively;
Described unipolar plate assembly (16) comprises is close to coolant plate (5) arranged side by side, water collecting board (4), hydrophilic porous gas-water separation assembly (3) and Oxygen Flow field plate (2) successively;
Described battery pile also comprises several repetitives (15) be interposed between the first membrane electrode assembly (141) and the first hydrogen stream field plate (61);
Described repetitive (15) comprises bipolar plate assembly (1) and membrane electrode assembly (14);
Described bipolar plate assembly (1) comprises is close to hydrogen stream field plate (6) arranged side by side, coolant plate (5), water collecting board (4), hydrophilic porous gas-water separation assembly (3) and Oxygen Flow field plate (2) successively;
Described Oxygen Flow field plate (2) is provided with some parallel runners towards the side plate face of the second end plate (20);
The cross section of the runner of described Oxygen Flow field plate (2) is isosceles trapezoid (7), and the broadside of trapezoidal (7) is towards membrane electrode assembly (14), and the narrow limit of trapezoidal (7) is towards hydrophilic porous gas-water separation assembly (3);
Described runner trapezoidal (7) narrow limit place bottom it is provided with some perforates (8) of being spaced inner towards Oxygen Flow field plate (2) along this runner.
2. passive drainage fuel cell stack as claimed in claim 1, is characterized in that, described perforate (8) is circular hole or the rectangular slot along runner direction, and the length on the diameter of circular hole or the width of rectangular slot trapezoidal with runner (7) narrow limit is identical.
3. passive drainage fuel cell stack as claimed in claim 1, is characterized in that, described perforate (8) and the surface of runner have hydrophily.
4. passive drainage fuel cell stack as claimed in claim 1, it is characterized in that, described hydrophilic porous gas-water separation assembly (3) comprises the Hydrophilized porous membrane be interposed between water collecting board (4) and Oxygen Flow field plate (2) and the frame and the supporting construction that are located at this perforated membrane surrounding.
5. passive drainage fuel cell stack as claimed in claim 1, it is characterized in that, described coolant plate (5) and water collecting board (4) are equipped with flow field on the side plate face towards the second end plate (20), and its form comprises the flow-field plate, the flow-field plate of spot distribution, porous media board or the corrugated plating that are provided with parallel groove.
6. passive drainage fuel cell stack as claimed in claim 1, it is characterized in that, described hydrogen stream field plate (6) is provided with flow field on the side plate face towards the first end plate (19), and its form comprises the flow-field plate, the flow-field plate of spot distribution, porous media board or the corrugated plating that are provided with parallel groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210522050.7A CN102945979B (en) | 2012-12-07 | 2012-12-07 | Passive drainage fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210522050.7A CN102945979B (en) | 2012-12-07 | 2012-12-07 | Passive drainage fuel cell stack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102945979A CN102945979A (en) | 2013-02-27 |
| CN102945979B true CN102945979B (en) | 2015-04-01 |
Family
ID=47728900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210522050.7A Active CN102945979B (en) | 2012-12-07 | 2012-12-07 | Passive drainage fuel cell stack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102945979B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956512A (en) * | 2014-05-19 | 2014-07-30 | 上海空间电源研究所 | Passive heat discharging fuel cell stack |
| CN104393322B (en) * | 2014-12-05 | 2016-12-07 | 上海空间电源研究所 | A kind of can the fuel cell pack of autonomous draining air inlet |
| CN106887633B (en) * | 2015-12-15 | 2020-01-14 | 中国科学院大连化学物理研究所 | High-temperature fuel cell stack |
| CN111326761B (en) * | 2018-12-13 | 2021-07-06 | 中国科学院大连化学物理研究所 | Renewable fuel cell |
| CN112993321B (en) * | 2019-12-16 | 2022-08-19 | 中车时代电动汽车股份有限公司 | Cooling liquid circulating system for fuel cell |
| CN113889637B (en) * | 2020-07-03 | 2023-11-10 | 中国科学院大连化学物理研究所 | Fuel cell bipolar plate with internal water diversion/internal humidification structure |
| CN113346098B (en) * | 2021-07-05 | 2022-08-09 | 上海空间电源研究所 | Fuel cell metal flow field plate with novel flow guide structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564360A (en) * | 2004-04-14 | 2005-01-12 | 清华大学 | Self-breathing portable power supply |
| CN1996646A (en) * | 2006-12-18 | 2007-07-11 | 南京大学 | Portable fuel battery pole board |
-
2012
- 2012-12-07 CN CN201210522050.7A patent/CN102945979B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564360A (en) * | 2004-04-14 | 2005-01-12 | 清华大学 | Self-breathing portable power supply |
| CN1996646A (en) * | 2006-12-18 | 2007-07-11 | 南京大学 | Portable fuel battery pole board |
Non-Patent Citations (1)
| Title |
|---|
| 质子交换膜燃料电池新型静态排水结构;侯明等;《电源技术》;20020630;第26卷(第3期);第131页右栏第2-3段，第132页左栏第1段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102945979A (en) | 2013-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102945979B (en) | Passive drainage fuel cell stack | |
| CN110380077B (en) | Combined flow passage fuel cell bipolar plate | |
| CN104393322B (en) | A kind of can the fuel cell pack of autonomous draining air inlet | |
| CN104795574A (en) | Metal bipolar plates of fuel cell and fuel cell | |
| KR100571821B1 (en) | Direct methanol fuel cell and portable computer having the same | |
| CN109244502A (en) | A kind of bipolar plates and its preparation process, single battery core and Proton Exchange Membrane Fuel Cells | |
| CN208955110U (en) | A kind of bipolar plates, single battery core and Proton Exchange Membrane Fuel Cells | |
| Mench et al. | Design of a micro direct methanol fuel cell (μDMFC) | |
| CN212783526U (en) | Metal bipolar plate with micro-protrusion structure | |
| CN100550500C (en) | A kind of fuel battery | |
| CN210866383U (en) | Fuel cell | |
| CN101127407A (en) | Portable proton exchange film fuel battery stack with self-managed water heat | |
| JP4643393B2 (en) | Fuel cell | |
| CN103956512A (en) | Passive heat discharging fuel cell stack | |
| JP2010061986A (en) | Fuel battery stack | |
| CN101911363A (en) | Fuel cell system | |
| KR102098628B1 (en) | The separator for fuel cell | |
| CN101826620B (en) | Bipolar plate for fuel cells | |
| JP5070741B2 (en) | Power generation method using liquid supply type fuel cell and liquid supply type fuel cell | |
| CN2914347Y (en) | Collecting device of liquid state water in tail gas of proton-exchange film fuel cell | |
| CN221427788U (en) | Novel connector structure of solid oxide fuel cell and fuel cell | |
| CN100372163C (en) | Fuel cell capable of increasing its output current for several times and lowering its output voltage for several times | |
| CN220456457U (en) | Liquid cooling fuel cell stack | |
| CN216958101U (en) | Parallel fuel cell stack | |
| CN212011139U (en) | Hydrogen fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |