CN208570781U - A kind of fuel battery double plates and fuel cell pile - Google Patents
A kind of fuel battery double plates and fuel cell pile Download PDFInfo
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- CN208570781U CN208570781U CN201821351451.XU CN201821351451U CN208570781U CN 208570781 U CN208570781 U CN 208570781U CN 201821351451 U CN201821351451 U CN 201821351451U CN 208570781 U CN208570781 U CN 208570781U
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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 utility model provides a kind of fuel battery double plates and fuel cell pile, comprising: anode reactant import and cathode reactant outlet positioned at the first side of bipolar plates, positioned at bipolar plates second side anode reactant outlet and cathode reactant import, the cooling liquid inlet positioned at the third side of bipolar plates, the 4th side positioned at bipolar plates cooling liquid outlet；Anode reactant channel and cathode reactant channel are upwardly extended in the side of the first side to second side, cooling passage is upwardly extended in the side of third side to the 4th side, wherein, the area of the cross section of multiple cooling passages is sequentially increased on the direction that cathode reactant import to cathode reactant exports or first increases and then decreases, the area of reactant inlet and outlet can not only be increased, prevent coolant liquid from mutually altering with reactant, be conducive to adjust the Aspect Ratio of bipolar plates again, improve the mechanical strength of bipolar plates, it can also realize the temperature gradient on reagent flow direction, realize the Heat And Water Balance in fuel cell.
Description
Technical field
The utility model relates to field of fuel cell technology, more specifically to a kind of fuel battery double plates and combustion
Expect battery stack.
Background technique
Fuel cell is the power generator that a kind of chemical energy that will be present in fuel and oxidant is converted into electric energy.
Since fuel cell has many advantages, such as to start convenience, high-energy density, long-life, zero-emission and energy conversion efficiency, because
This, has been widely used in the power supply of automatic vehicle, communication base station and portable power tool etc..
When operation of fuel cells, anode reactant (such as hydrogen) is input to anode electrode side, cathode reactant (such as oxygen)
Being input to cathode electrode side, anode reactant and cathode reactant, that redox occurs on the interface of electrode and electrolyte is anti-
It answers, generates electric current, export electric energy.But since fuel cell can generate water at runtime and release a large amount of heat,
If the water of generation is removed not in time, alternatively, radiating not in time to fuel cell, it will influence fuel cell performance and
Service life.
In recent years, fuel cell one of has become a hot topic of research from humidification, by the structure of designing fuel cell battery pile,
The Heat And Water Balance of fuel cell may be implemented.Its fuel cell structure for generalling use reactant adverse current, even if anode reactant
The flow direction of (such as hydrogen) and cathode reactant (such as oxygen) is on the contrary, as shown in Figure 1, cathode reactant import 10, cooling liquid inlet
11, anode reactant outlet 12 is in a short side of bipolar plates, cathode reactant outlet 13, cooling liquid outlet 14, sun together
Pole reaction-ure inlet 15 is in another short side of bipolar plates together, is based on this, selects suitable proton exchange membrane, can make yin
The vaporous water of pole reactant exit 13 is diffused into anode reactant import 15, to increase the humidity of anode reactant.Meanwhile it can be with
Using circulating pump, the anode reactant that anode reactant outlet 12 does not consume is passed into anode reactant import 15 again
Reacted, the vaporous water that the anode reactant of circulation is taken out of out of battery pile also can to the gas of anode reactant import 15 with
And cathode reactant import 10 is humidified.
But coolant liquid inlet and outlet can occupy the space of bipolar plates short side, to anode reactant inlet and outlet and cathode
The area of reactant inlet and outlet brings limitation, can also reduce the mechanical strength of bipolar plates, while coolant liquid inlet and outlet are anti-with anode
It answers object inlet and outlet or cathode reactant inlet and outlet adjacent, be easy to cause between coolant liquid and anode reactant or cathode reactant
Blowby.
Utility model content
In view of this, the present invention provides a kind of fuel battery double plates and fuel cell piles, to solve to cool down
Liquid inlet and outlet occupy the space of bipolar plates short side, bring limitation to the design of gas inlet and outlet, reduce the machinery of bipolar plates by force
The problem of spending and causing blowby between coolant liquid and anode reactant or cathode reactant.
To achieve the above object, the utility model provides the following technical solutions:
A kind of fuel battery double plates, comprising:
Anode reactant import and cathode reactant positioned at the first side of the bipolar plates export, are located at the bipolar plates
Second side anode reactant outlet and cathode reactant import, positioned at the third side of the bipolar plates cooling liquid inlet,
Cooling liquid outlet positioned at the 4th side of the bipolar plates, described second side is opposite with first side, the 4th side and institute
It is opposite to state third side；
Positioned at multiple anode reactant channels of one side surface of bipolar plates, positioned at the opposite other side of the bipolar plates
Multiple cathode reactant channels on surface and multiple cooling passages arranged side by side inside the bipolar plates；The anode is anti-
Object channel and the cathode reactant channel is answered to upwardly extend in the side of described first side to described second side, the coolant liquid is logical
Road is upwardly extended in the side of the third side to the 4th side；
The entrance in the anode reactant channel and the anode reactant inlet communication, the anode reactant channel
Outlet and the anode reactant outlet；The entrance in the cathode reactant channel and the cathode reactant import connect
It is logical, the outlet in the cathode reactant channel and the cathode reactant outlet；The entrance of the cooling passage and institute
Cooling liquid inlet connection is stated, the outlet of the cooling passage is connected to the cooling liquid outlet, wherein the multiple coolant liquid
The area of the cross section in channel is sequentially increased on the direction that the cathode reactant import is exported to the cathode reactant, or
Person, what the area of the cross section of the multiple cooling passage was exported in the cathode reactant import to the cathode reactant
First increases and then decreases on direction.
Preferably, the bipolar plates include overlapping first panel and second panel；
The first panel and the second panel all have the direction extension along first side to described second side
Multiple first protrusions and multiple second protrusions extended along the direction of the third side to the 4th side；
There is the first groove, first groove on the first panel surface is constituted between first protrusion of adjacent two
Second groove in the anode reactant channel, the second panel surface constitutes the cathode reactant channel；Described first
Second protrusion of panel and the second protrusion of the second panel constitute the cooling passage.
Preferably, the first panel and the second panel pass through second between two adjacent second protrusions
Groove is fixedly connected.
Preferably, the second groove in the first panel passes through welding with the second groove corresponding in the second panel
Or the mode of bonding is fixedly connected.
Preferably, the first panel and the second panel are metal decking, alternatively, the first panel and described the
Two panels are graphite panel.
Preferably, the cooling passage and the angle in the anode reactant channel or the cathode reactant channel are
30 °~90 °, including endpoint value.
A kind of fuel cell pile, including first end plate, the second end plate, be located at the first end plate and second end plate
Between multiple bipolar plates and the membrane electrode assembly between two adjacent bipolar plates；
The membrane electrode assembly include anode electrode, cathode electrode and be located at the anode electrode and the cathode electrode
Between proton exchange membrane；
The bipolar plates are described in any item bipolar plates as above；The bipolar plates table close to the anode electrode side
Reactant in the reactant channel in face is anode reactant；Close to the cathode electrode side the bipolar plate surfaces it is anti-
Answering the reactant in object channel is cathode reactant.
Preferably, the cooling liquid inlet in the bipolar plates passes through the cooling of the first coolant liquid assignment channel and the pile
Liquid entrance is connected to, and the cooling liquid outlet in the bipolar plates is gone out by the coolant liquid of the second coolant liquid assignment channel and the pile
Mouth connection.
Preferably, the first coolant liquid assignment channel and the second coolant liquid assignment channel are entirely located in described first
On end plate；
Alternatively, the first coolant liquid assignment channel and the second coolant liquid assignment channel are entirely located in the second end
On plate；
Alternatively, the first coolant liquid assignment channel is located in the first end plate, the second coolant liquid assignment channel
On second end plate；
Alternatively, the second coolant liquid assignment channel is located in the first end plate, the first coolant liquid assignment channel
On second end plate.
Preferably, the first coolant liquid assignment channel and the second coolant liquid assignment channel are stick channel.
Compared with prior art, technical solution provided by the utility model has the advantage that
Fuel battery double plates and fuel cell pile provided by the utility model, anode reactant import and cathode are anti-
Answer object outlet be located at bipolar plates the first side, anode reactant outlet and cathode reactant import be located at bipolar plates second side,
Cooling liquid inlet is located at the third side of bipolar plates, cooling liquid outlet is located at the 4th side of bipolar plates, that is to say, that coolant liquid disengaging
Mouth is located at not ipsilateral, the base of bipolar plates with reactant inlet and outlet (importing and exporting including anode reactant inlet and outlet and cathode reactant)
In this, it can not only increase the area of reactant inlet and outlet, prevent coolant liquid from mutually altering with reactant, and be conducive to adjust bipolar plates
Aspect Ratio, improve the mechanical strength of bipolar plates；
Also, since the area of the cross section of multiple cooling passages is exported in cathode reactant import to cathode reactant
Direction on be sequentially increased, alternatively, the area of the cross section of multiple cooling passages is in cathode reactant import to cathode reaction
First increases and then decreases on the direction of object outlet, it is thereby achieved that temperature ladder of the coolant liquid on cathode reactant flowing direction
Degree, and then the Heat And Water Balance in fuel cell may be implemented.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of existing structural schematic diagram of bipolar plates；
Fig. 2 is the structural schematic diagram of existing another bipolar plates；
Fig. 3 is a kind of structural schematic diagram of bipolar plates provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of another bipolar plates provided by the embodiment of the utility model；
Fig. 5 is the schematic diagram of the section structure of the bipolar plates shown in Fig. 3 along AA ' cutting line；
Fig. 6 is the schematic diagram of the section structure of the bipolar plates shown in Fig. 3 along BB ' cutting line；
Fig. 7 is a kind of structural schematic diagram of fuel cell pile provided by the embodiment of the utility model；
Fig. 8 is that the structure of the fuel cell pile provided by the embodiment of the utility model including bipolar plates shown in Fig. 3 is shown
It is intended to；
Fig. 9 is that the structure of the fuel cell pile provided by the embodiment of the utility model including bipolar plates shown in Fig. 4 is shown
It is intended to.
Specific embodiment
As described in background, coolant liquid inlet and outlet can occupy the space of bipolar plates short side, to anode reactant into
The area of outlet and cathode reactant inlet and outlet brings limitation, can also reduce the mechanical strength of bipolar plates, at the same coolant liquid into
Outlet is adjacent with anode reactant inlet and outlet or cathode reactant inlet and outlet, be easy to cause coolant liquid and anode reactant or cathode
Blowby between reactant.
Although coolant liquid the study found that the long side that bipolar plates are arranged in can be imported and exported, such as Fig. 2 institute by utility model people
Showing, cooling liquid inlet 11 is located at a long side of bipolar plates, and cooling liquid outlet 14 is located at another long side of bipolar plates, but
It is, since coolant liquid does not have a temperature gradient on cathode reactant flowing direction, i.e. coolant liquid on the direction described in arrow
Temperature is almost the same, it is thus impossible to be heated using the water that the coolant liquid after absorption heat generates battery, thus not
It can make liquid water transitions vaporous water and be flowed out with cathode reactant, and then be difficult to realize the flat from humidification and hydro-thermal of fuel cell
Weighing apparatus.
Based on this, the utility model provides a kind of fuel battery double plates, to overcome of the existing technology above-mentioned ask
Topic, comprising:
Anode reactant import and cathode reactant positioned at the first side of the bipolar plates export, are located at the bipolar plates
Second side anode reactant outlet and cathode reactant import, positioned at the third side of the bipolar plates cooling liquid inlet,
Cooling liquid outlet positioned at the 4th side of the bipolar plates, described second side is opposite with first side, the 4th side and institute
It is opposite to state third side；
Positioned at multiple anode reactant channels of one side surface of bipolar plates, positioned at the opposite other side of the bipolar plates
Multiple cathode reactant channels on surface and multiple cooling passages arranged side by side inside the bipolar plates；The anode is anti-
Object channel and the cathode reactant channel is answered to upwardly extend in the side of described first side to described second side, the coolant liquid is logical
Road is upwardly extended in the side of the third side to the 4th side；
The entrance in the anode reactant channel and the anode reactant inlet communication, the anode reactant channel
Outlet and the anode reactant outlet；The entrance in the cathode reactant channel and the cathode reactant import connect
It is logical, the outlet in the cathode reactant channel and the cathode reactant outlet；The entrance of the cooling passage and institute
Cooling liquid inlet connection is stated, the outlet of the cooling passage is connected to the cooling liquid outlet, wherein the multiple coolant liquid
The area of the cross section in channel is sequentially increased on the direction that the cathode reactant import is exported to the cathode reactant, or
Person, what the area of the cross section of the multiple cooling passage was exported in the cathode reactant import to the cathode reactant
First increases and then decreases on direction.
Fuel battery double plates and pile provided by the utility model can not only increase the area of reactant inlet and outlet,
It prevents coolant liquid from mutually altering with reactant, and is conducive to adjust the Aspect Ratio of bipolar plates, improve the mechanical strength of bipolar plates, may be used also
To realize the temperature gradient on cathode reactant flowing direction, the Heat And Water Balance in fuel cell is realized.
It is the core concept of the utility model above, to enable the above objects, features, and advantages of the utility model more
Add and become apparent, the following will be combined with the drawings in the embodiments of the present invention, to the technical scheme in the embodiment of the utility model
It is clearly and completely described, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, is fallen within the protection scope of the utility model.
The utility model embodiment provides a kind of fuel battery double plates, which is preferably proton exchange membrane dye
Expect battery, anode reactant is preferably hydrogen, and cathode reactant is preferably oxygen, and still, the utility model is not limited to that.
As shown in figure 3, the fuel battery double plates include the anode reactant import 20 of the first side A1 positioned at bipolar plates
With cathode reactant outlet 30, positioned at bipolar plates second side A2 anode reactant outlet 21 and cathode reactant import 31,
The cooling liquid outlet of cooling liquid inlet 40 positioned at the third side A3 of bipolar plates, the 4th side A4 or third side A3 positioned at bipolar plates
41, wherein second side A2 is the side opposite with the first side A1, and the 4th side A4 is the side opposite with third side A3, second side
A2 is adjacent with third side A3.
In the present embodiment, cooling liquid inlet 40 is located at the third side A3 of bipolar plates, and cooling liquid outlet 41 is located at bipolar plates
4th side A4, certainly, the utility model is not limited to that, in other embodiments, cooling liquid inlet 40 can also be located at double
4th side A4 of pole plate, cooling liquid outlet 41 can also be located at the third side A3 of bipolar plates.Preferably, cooling liquid inlet 40 is located at
Close to the side of cathode reactant import 31, cooling liquid outlet 41 is located at the other side opposite with cooling liquid inlet 40.
In the present embodiment, the middle part of bipolar plates is reactive flowfield, and reaction channel and cooling passage is distributed with.Specifically,
The bipolar plates include multiple anode reactant channels arranged in parallel in the middle part of bipolar plates and positioned at one side surface of bipolar plates
22, positioned at multiple cathode reactant channels 32 arranged in parallel of the opposite another side surface of bipolar plates and inside bipolar plates
Multiple cooling passages 42 arranged in parallel.
It should be noted that Fig. 3 Anodic reactant channel 22 perpendicular on bipolar plates direction projection and cathode it is anti-
Object channel 32 is answered to be overlapped perpendicular to the projection on bipolar plates direction, i.e. anode reactant channel 22 and cathode reactant channel 32
It corresponds.
As shown in figure 3, anode reactant channel 22 and cathode reactant channel 32 are in the first side A1 to the side of second side A2
It upwardly extends, cooling passage 42 is upwardly extended in the side of third side A3 to the 4th side A4.For example, 22 He of anode reactant channel
Cathode reactant channel 32 is the channel extended from left to right, and cooling passage 42 is the channel extended from the bottom up.
Wherein, the entrance in anode reactant channel 22 is connected to anode reactant import 20, anode reactant channel 22
Outlet is connected to anode reactant outlet 21；The entrance in cathode reactant channel 32 is connected to cathode reactant import 31, cathode
The outlet of reactant channel 32 is connected to cathode reactant outlet 30；The entrance and cooling liquid inlet 40 of cooling passage 42 connect
Logical, the outlet of cooling passage 42 is connected to cooling liquid outlet 41.
Wherein, as shown in figure 3, the area of the cross section of multiple cooling passages 42 is in cathode reactant import 31 to cathode
It is sequentially increased on the direction of reactant exit 30, alternatively, as shown in figure 4, the sectional area of multiple cooling passages 42 is anti-in cathode
Answer first increases and then decreases in object import 31 to the direction of cathode reactant outlet 30.Specifically, the area of cross section refers to cooling
The AA ' along Fig. 3 or Fig. 4 of liquid channel 42 cuts the area for the cross section that wire cutting is formed.
Due to cooling liquid inlet 40 and outlet 41 with reactant inlet and outlet (including anode reactant import 20, outlet 21 and
Cathode reactant import 31, outlet be not 30) positioned at the ipsilateral of bipolar plates, therefore, can not only increase the face of reactant inlet and outlet
Product, prevents coolant liquid from mutually altering with reactant, and is conducive to adjust the Aspect Ratio of bipolar plates, improves the mechanical strength of bipolar plates.
Also, enter cooling passage 42 to the process flowed out from cooling liquid outlet 41 from cooling liquid inlet 40 in coolant liquid
In, coolant liquid absorbs the heat that fuel cell each region generates, since the area of 42 cross section of cooling passage is anti-in cathode
It answers and is sequentially increased or first increases and then decreases in object import 31 to the direction of cathode reactant outlet 30, therefore, after absorbing heat
The temperature of coolant liquid be sequentially increased or first increase on the direction of cathode reactant import 31 to cathode reactant outlet 30
After reduce, and the higher coolant liquid of temperature can by fuel cell generate liquid water sublimate be vaporous water, make vaporous water with yin
Pole reactant is from 30 outflow of cathode reactant outlet, therefore, can flow the temperature on direction in cathode reactant by coolant liquid
Spend the Heat And Water Balance in gradient realization fuel cell.
Since the water in fuel cell is generated in cathode electrode side, cooling liquid inlet 40 is leaned on positioned at bipolar plates
The side of nearly cathode reactant import 31, cooling liquid outlet 41 are located at the side that bipolar plates export 30 close to cathode reactant, with
So that coolant liquid is realized temperature gradient on cathode reactant flowing direction, makes vaporous water with cathode reactant from cathode reaction
30 outflow of object outlet.
In the present embodiment, the cooling liquid inlet 10 in bipolar plates passes through the first coolant liquid assignment channel and fuel cell pile
Coolant inlet connection, cooling liquid outlet 41 in bipolar plates passes through the second coolant liquid assignment channel and fuel cell pile
Cooling liquid outlet connection.Preferably, the first coolant liquid assignment channel and the second coolant liquid assignment channel are stick channel.
It should be noted that the first coolant liquid assignment channel and the second coolant liquid assignment channel can be located in bipolar plates,
It can not also be located in bipolar plates.In the present embodiment, in order to simplify bipolar plate structure and manufacture craft, by the first coolant liquid point
It has been arranged on the end plate of fuel cell with channel and the second coolant liquid assignment channel, specific structure can be detailed in subsequent embodiment
Describe in detail bright, also, all bipolar plates of fuel cell can share the first coolant liquid assignment channel and the distribution of the second coolant liquid is logical
Road, to further simplify the structure of fuel cell.
In the present embodiment, as shown in Figure 5 and Figure 6, Fig. 5 is that bipolar plates shown in Fig. 3 are shown along the cross-section structure of AA ' cutting line
It is intended to, Fig. 6 is bipolar plates shown in Fig. 3 along the schematic diagram of the section structure of BB ' cutting line, and bipolar plates include overlapping first panel
50 and second panel 51.First panel 50 and second panel 51 all have along the more of the direction of the first side A1 to second side A2 extension
A first protrusion 52 and multiple second protrusions 53 extended along the direction of third side A3 to the 4th side A4.
As shown in figure 5, the second protrusion 53 of first panel 50 and the second protrusion 53 of second panel 51 constitute coolant liquid and lead to
Road 42.It should be noted that the second protrusion 53 of first panel 50 and the second protrusion 53 of second panel 51 correspond, and
And first panel 50 and second panel 51 are fixedly connected by the second groove 55 between two adjacent the second protrusions 53, with
Adjacent cooling passage 42 is kept apart, avoids flowing to and is interfered with each other between opposite coolant liquid.
Specifically, the second groove 55 in first panel 50 can pass through with the second groove 55 corresponding in second panel 51
The mode of welding or bonding is fixedly connected, and certainly, the utility model is not limited to that, in other embodiments, the two may be used also
To be fixedly connected by other means.Wherein, coolant liquid is flowed along the direction perpendicular to paper in Fig. 5, anode reactant (such as hydrogen
Gas) or cathode reactant (such as oxygen) along from left to right direction flowing, alternatively, anode reactant (such as hydrogen) or cathode reaction
Object (such as oxygen) is flowed along the direction turned left from the right side.
As shown in fig. 6, there is the first groove 54 between two adjacent the first protrusions 52, the first of 50 surface of first panel
Groove 54 is anode reactant channel, and second groove 54 on 51 surface of second panel is cathode reactant channel.Wherein, anode is anti-
Object (such as hydrogen) or cathode reactant (such as oxygen) is answered to flow along the direction perpendicular to paper.
Specifically, the bipolar plates in the present embodiment can constitute battery list with another bipolar plates and membrane electrode assembly
Member, the membrane electrode assembly include anode electrode, proton exchange membrane and cathode electrode, i.e., hand over according to bipolar plates, anode electrode, proton
The sequence for changing film, cathode electrode and bipolar plates is installed to form battery unit.First bipolar plates is close to one side surface of anode electrode
The second groove 54 and anode electrode surround anode reactant channel, second bipolar plates close to one side surface of cathode electrode the
Two grooves 54 surround cathode reactant channel with cathode electrode, the anode to close one side surface of anode electrode of first bipolar plates
Reactant channel is passed through anode reactant, leads to the cathode reactant channel of close one side surface of cathode electrode of second bipolar plates
After entering cathode reactant, anode reactant (such as hydrogen) and cathode reactant (such as oxygen) anode electrode, proton exchange membrane and
Cathode electrode interface chemically reacts, and generates electric current, output electric energy.
Further, in this embodiment first panel 50 and second panel 51 be metal decking, alternatively, first panel 50
It is graphite panel with second panel 51, certainly, the utility model is also not limited to this, and in other embodiments, bipolar plates are also
It is also possible to the bipolar plates of other materials.
Angle in the present embodiment, between cooling passage 42 and anode reactant channel 22 or cathode reactant channel 32
It is 90 °, certainly, the utility model is not limited to that, cooling passage 42 and anode reactant channel 22 in the utility model
Or the angle between cathode reactant channel 32 can be within the scope of 30 °~90 °, including endpoint value.
In the present embodiment, as shown in figure 3, also needing to lead to after anode reactant is from anode reactant import 20 into bipolar plates
It crosses first anode reactant distribution channel 23 and enters anode reactant channel 22, anode reactant is flowed from anode reactant channel 22
It also needs to flow out anode reactant outlet 21 by second plate reactant distribution channel 24 after out.Equally, cathode reactant is from yin
After pole reaction-ure inlet 31 enters bipolar plates, also need to enter cathode reactant channel by the first cathode reactant assignment channel 33
32, cathode reactant also needs to flow out cathode by the second cathode reactant assignment channel 34 after flowing out from cathode reactant channel 32
Reactant exit 30.
Wherein, there is a folder less than 90 degree between first anode reactant distribution channel 23 and anode reactant channel 22
Angle, the angle for being greater than 90 degree with one between second plate reactant distribution channel 24 and anode reactant channel 22, and first
Anode reactant assignment channel 23 is opposite with the overbending direction of 24 assignment channel of second plate reactant.First cathode reactant point
With having an angle less than 90 degree between channel 33 and cathode reactant channel 32, the second cathode reactant assignment channel 34 and
The angle for being greater than 90 degree with one between cathode reactant channel 32, and the first cathode reactant assignment channel 33 and the second cathode
The overbending direction in reactant distribution channel 34 is opposite.
First anode reactant distribution channel 23, second plate reactant distribution channel 24, the distribution of the first cathode reactant
Channel 33 and the second cathode reactant assignment channel 34 are to import and export Position Design, specific length and angle etc. according to reactant
It can be adjusted according to the actual situation, no longer illustrate herein.
Fuel battery double plates provided by the embodiment of the utility model, anode reactant import and cathode reactant export position
It is exported in the first side of bipolar plates, anode reactant and cathode reactant import is located at second side of bipolar plates, cooling liquid inlet
It is located at the third side or the 4th side of bipolar plates positioned at the third side of bipolar plates, cooling liquid outlet, that is to say, that coolant liquid inlet and outlet
It is located at the not ipsilateral of bipolar plates with reactant inlet and outlet (importing and exporting including anode reactant inlet and outlet and cathode reactant), is based on
This, can not only increase the area of reactant inlet and outlet, prevent coolant liquid from mutually altering with reactant, and be conducive to adjust bipolar plates
Aspect Ratio improves the mechanical strength of bipolar plates；
Also, since the area of the cross section of multiple cooling passages is exported in cathode reactant import to cathode reactant
Direction on be sequentially increased, alternatively, the area of the cross section of multiple cooling passages is in cathode reactant import to cathode reaction
First increases and then decreases on the direction of object outlet, it is thereby achieved that temperature ladder of the coolant liquid on cathode reactant flowing direction
Degree, and then the Heat And Water Balance in fuel cell may be implemented.
The utility model embodiment additionally provides a kind of fuel cell pile, as shown in fig. 7, comprises first end plate 60,
Two end plates 61, multiple bipolar plates 62 between first end plate 60 and the second end plate 61 and positioned at two adjacent bipolar plates
Membrane electrode assembly 63 between 62, the membrane electrode assembly 63 is including anode electrode, cathode electrode and is located at anode electrode and yin
Proton exchange membrane between the electrode of pole.Certainly, the fuel cell pile in the present embodiment further includes unipolar plate, collector plate, insulation
The structures such as plate, details are not described herein.
Wherein, bipolar plates 62 are bipolar plates described in embodiment as above；Close to 62 surface of bipolar plates of anode electrode side
Reactant channel in reactant be anode reactant；Reactant channel close to 62 surface of bipolar plates of cathode electrode side
Interior reactant is cathode reactant.To 63 side of membrane electrode assembly bipolar plates 62 close to one side surface of anode electrode anode
Reactant channel be passed through anode reactant, to 63 other side of membrane electrode assembly second bipolar plates 62 close to cathode electrode side
After the cathode reactant channel on surface is passed through cathode reactant, anode reactant (such as hydrogen) and cathode reactant (such as oxygen) exist
Anode electrode, proton exchange membrane and cathode electrode interface chemically react, and generate electric current, output electric energy.
In the present embodiment, fuel cell pile shown in Fig. 8 includes the bipolar plates being sequentially increased shown in Fig. 3, shown in Fig. 9
Fuel cell pile includes the bipolar plates of first increases and then decreases shown in Fig. 4, and all cooling liquid inlets 40 in each bipolar plates are logical
It crosses the first coolant liquid assignment channel 602 to be connected to the coolant inlet 601 of pile, all cooling liquid outlets in each bipolar plates
41 are connected to by the second coolant liquid assignment channel 604 with the cooling liquid outlet 603 of pile.Specifically, the distribution of the first coolant liquid is logical
Road 602 and the second coolant liquid assignment channel 604 are all strip channel.
In the present embodiment, as shown in Figure 8 and Figure 9, the first coolant liquid assignment channel 602 and the second coolant liquid assignment channel
604 are entirely located in first end plate 60, alternatively, the first coolant liquid assignment channel 602 and the second coolant liquid assignment channel 604 are all
On the second end plate 61；Alternatively, the first coolant liquid assignment channel 602 is located in first end plate 60, the distribution of the second coolant liquid is logical
Road 604 is located on the second end plate 61, alternatively, the second coolant liquid assignment channel 604 is located in first end plate 60, the first coolant liquid point
It is located on the second end plate 61 with channel 602.
Below by taking structure shown in Fig. 8 as an example, the flow path of coolant liquid is illustrated, the cooling of structure shown in Fig. 9
Liquid flow process is identical as this principle, and details are not described herein.Also, in order to enable flow path becomes apparent from, in Fig. 8 and Fig. 9 simultaneously
It is not drawn into membrane electrode assembly etc..
Coolant liquid enters the first coolant liquid assignment channel 602 from the coolant inlet 601 in first end plate 60, then passes through
The channel that each cooling liquid inlet 40 that first coolant liquid assignment channel 602 enters in all bipolar plates is formed side by side, that is, enter
Each cooling liquid inlet 40 in all bipolar plates, and cooling passage 42 is reached, later from cooling passage 42 and cooling
It is cooling to enter second by the channel that each cooling liquid outlet 41 of all bipolar plates is formed side by side for 41 outflow bipolar plates of liquid outlet
Then liquid assignment channel 604 flows to the cooling liquid outlet 603 in first end plate 60 by the second coolant liquid assignment channel 604, and
Fuel cell pile is flowed out from cooling liquid outlet 603.
It should be noted that also having cathode reactant entrance 605, anode reactant entrance 606, yin in first end plate 60
Pole reactant exit 607 and anode reactant outlet 608.Anode reactant is from anode reactant entrance 606 and all bipolar
Anode reactant import 20 on plate enters anode reactant channel, from all bipolar plates anode reactant outlet 21 and
608 outflow fuel cell pile of anode reactant outlet.Equally, cathode reactant from cathode reactant entrance 605 and owns
Cathode reactant import 31 in bipolar plates enters cathode reactant channel, from the cathode reactant outlet 30 in all bipolar plates
And 607 outflow fuel cell pile of cathode reactant outlet.
Fuel cell pile provided in this embodiment, anode reactant import and cathode reactant outlet are located at bipolar plates
First side, anode reactant exports and cathode reactant import is located at second side of bipolar plates, cooling liquid inlet is located at bipolar plates
Third side, cooling liquid outlet be located at the third side or the 4th side of bipolar plates, that is to say, that coolant liquid inlet and outlet and reactant into
Outlet (including anode reactant inlet and outlet and cathode reactant inlet and outlet) is located at the not ipsilateral of bipolar plates, is based on this, not only may be used
It to increase the area of reactant inlet and outlet, prevents coolant liquid from mutually altering with reactant, and is conducive to adjust the Aspect Ratio of bipolar plates,
Improve the mechanical strength of bipolar plates；
Also, since the area of the cross section of multiple cooling passages is exported in cathode reactant import to cathode reactant
Direction on be sequentially increased, alternatively, the area of the cross section of multiple cooling passages is in cathode reactant import to cathode reaction
First increases and then decreases on the direction of object outlet, it is thereby achieved that temperature ladder of the coolant liquid on cathode reactant flowing direction
Degree, and then the Heat And Water Balance in fuel cell may be implemented.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of fuel battery double plates characterized by comprising
Anode reactant import positioned at the first side of the bipolar plates and cathode reactant outlet, positioned at the of the bipolar plates
Two sides anode reactant outlet and cathode reactant import, positioned at the third side of the bipolar plates cooling liquid inlet, be located at
The cooling liquid outlet of 4th side of the bipolar plates, described second side is opposite with first side, the 4th side and described the
Three sides are opposite；
Positioned at multiple anode reactant channels of one side surface of bipolar plates, positioned at the opposite another side surface of the bipolar plates
Multiple cathode reactant channels and multiple cooling passages arranged side by side inside the bipolar plates；The anode reactant
Channel and the cathode reactant channel are upwardly extended in the side of described first side to described second side, and the cooling passage exists
The side of the third side to the 4th side upwardly extends；
The entrance in the anode reactant channel and the anode reactant inlet communication, the outlet in the anode reactant channel
With the anode reactant outlet；The entrance in the cathode reactant channel and the cathode reactant inlet communication, institute
State cathode reactant channel outlet and the cathode reactant outlet；The entrance of the cooling passage and the cooling
Liquid inlet communication, the outlet of the cooling passage are connected to the cooling liquid outlet, wherein the multiple cooling passage
The area of cross section is sequentially increased on the direction that the cathode reactant import is exported to the cathode reactant, alternatively, institute
The area of the cross section of multiple cooling passages is stated in the direction that the cathode reactant import is exported to the cathode reactant
Upper first increases and then decreases.
2. bipolar plates according to claim 1, which is characterized in that the bipolar plates include overlapping first panel and second
Panel；
The first panel and the second panel all have the multiple of the direction extension along first side to described second side
First protrusion and multiple second protrusions extended along the direction of the third side to the 4th side；
There is the first groove, described in first groove on the first panel surface is constituted between first protrusion of adjacent two
Second groove in anode reactant channel, the second panel surface constitutes the cathode reactant channel；The first panel
The second protrusion and the second protrusion of the second panel constitute the cooling passage.
3. bipolar plates according to claim 2, which is characterized in that the first panel and the second panel pass through adjacent
Two second protrusions between the second groove be fixedly connected.
4. bipolar plates according to claim 3, which is characterized in that the second groove and described second in the first panel
Corresponding second groove is fixedly connected by way of welding or being bonded on panel.
5. bipolar plates according to claim 2, which is characterized in that the first panel and the second panel are metal covering
Plate, alternatively, the first panel and the second panel are graphite panel.
6. bipolar plates according to claim 1, which is characterized in that the cooling passage and the anode reactant channel
Or the angle in the cathode reactant channel is 30 °~90 °, including endpoint value.
7. a kind of fuel cell pile, which is characterized in that including first end plate, the second end plate, be located at the first end plate and institute
State multiple bipolar plates between the second end plate and the membrane electrode assembly between two adjacent bipolar plates；
The membrane electrode assembly includes anode electrode, cathode electrode and between the anode electrode and the cathode electrode
Proton exchange membrane；
The bipolar plates are the described in any item bipolar plates of claim 1~6；Close to the described bipolar of the anode electrode side
Reactant in the reactant channel of plate surface is anode reactant；The bipolar plate surfaces close to the cathode electrode side
Reactant channel in reactant be cathode reactant.
8. pile according to claim 7, which is characterized in that the cooling liquid inlet in the bipolar plates is cooling by first
Liquid assignment channel is connected to the coolant inlet of the pile, and the cooling liquid outlet in the bipolar plates passes through the second coolant liquid point
It is connected to channel with the cooling liquid outlet of the pile.
9. pile according to claim 8, which is characterized in that the first coolant liquid assignment channel and second cooling
Liquid assignment channel is entirely located in the first end plate；
Alternatively, the first coolant liquid assignment channel and the second coolant liquid assignment channel are entirely located in second end plate
On；
Alternatively, the first coolant liquid assignment channel is located in the first end plate, the second coolant liquid assignment channel is located at
On second end plate；
Alternatively, the second coolant liquid assignment channel is located in the first end plate, the first coolant liquid assignment channel is located at
On second end plate.
10. pile according to claim 9, which is characterized in that the first coolant liquid assignment channel and described second cold
But liquid assignment channel is stick channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821351451.XU CN208570781U (en) | 2018-08-21 | 2018-08-21 | A kind of fuel battery double plates and fuel cell pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821351451.XU CN208570781U (en) | 2018-08-21 | 2018-08-21 | A kind of fuel battery double plates and fuel cell pile |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109818006A (en) * | 2019-03-19 | 2019-05-28 | 苏州钧峰新能源科技有限公司 | A kind of bipolar plate assembly of use for methanol fuel cells temperature-adjustable |
| CN111261897A (en) * | 2020-01-21 | 2020-06-09 | 沈阳理工大学 | PEM fuel cell power generation device with tail gas energy recovery function |
| CN112952135A (en) * | 2019-12-11 | 2021-06-11 | 未势能源科技有限公司 | Cooling flow field device and fuel cell |
| CN112993312A (en) * | 2019-12-14 | 2021-06-18 | 中国科学院大连化学物理研究所 | High-temperature methanol fuel cell stack with spaced cooling cavities |
| CN113410501A (en) * | 2021-06-10 | 2021-09-17 | 黄冈格罗夫氢能汽车有限公司 | Hydrogen fuel cell stack |
| CN114614040A (en) * | 2020-12-09 | 2022-06-10 | 中国科学院大连化学物理研究所 | Interval cooling fuel cell stack |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818006A (en) * | 2019-03-19 | 2019-05-28 | 苏州钧峰新能源科技有限公司 | A kind of bipolar plate assembly of use for methanol fuel cells temperature-adjustable |
| CN109818006B (en) * | 2019-03-19 | 2021-10-29 | 苏州钧峰新能源科技有限公司 | Temperature-adjustable bipolar plate assembly for methanol fuel cell |
| CN112952135A (en) * | 2019-12-11 | 2021-06-11 | 未势能源科技有限公司 | Cooling flow field device and fuel cell |
| CN112952135B (en) * | 2019-12-11 | 2022-06-28 | 未势能源科技有限公司 | Cooling flow field device and fuel cell |
| CN112993312A (en) * | 2019-12-14 | 2021-06-18 | 中国科学院大连化学物理研究所 | High-temperature methanol fuel cell stack with spaced cooling cavities |
| CN111261897A (en) * | 2020-01-21 | 2020-06-09 | 沈阳理工大学 | PEM fuel cell power generation device with tail gas energy recovery function |
| CN114614040A (en) * | 2020-12-09 | 2022-06-10 | 中国科学院大连化学物理研究所 | Interval cooling fuel cell stack |
| CN113410501A (en) * | 2021-06-10 | 2021-09-17 | 黄冈格罗夫氢能汽车有限公司 | Hydrogen fuel cell stack |
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Effective date of registration: 20220118 Address after: 201800 No. 1788, xiechun Road, Anting Town, Jiading District, Shanghai Patentee after: Shanghai jiehydrogen Technology Co.,Ltd. Address before: 201203 Room 509, Building No. 1, 563 Songtao Road, Zhangjiang High-tech Park, Pudong New Area, Shanghai Patentee before: SAIC Motor Corp.,Ltd. |