CN116598532A

CN116598532A - Fuel cell

Info

Publication number: CN116598532A
Application number: CN202310674576.5A
Authority: CN
Inventors: 唐厚闻; 邵恒; 麦建明; 徐一凡; 伍兴俊
Original assignee: Shanghai H Rise New Energy Technology Co Ltd
Current assignee: Shanghai H Rise New Energy Technology Co Ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-08-15

Abstract

The application relates to a fuel cell, which comprises a cell body; the heat exchange flow passage is arranged on the battery body; an exhaust runner arranged on the battery body; the gas-liquid centrifugal separation pump is respectively communicated with the heat exchange flow channel and the exhaust flow channel, and is used for separating gas in the heat exchange medium, inputting the heat exchange medium after separating the gas into the heat exchange flow channel and inputting the gas into the exhaust flow channel. According to the technical scheme provided by the application, most of gas is separated from the heat exchange medium through the gas-liquid centrifugal separation pump, so that the content of bubbles in the heat exchange flow channel is reduced, the problem that the bubbles block the heat exchange flow channel is solved, and meanwhile, the gas is discharged through the exhaust flow channel, the heat exchange medium entrained in the gas is taken away, so that the part of heat exchange medium can be uniformly and intensively discharged to avoid pollution, or returned to the heat exchange medium source after passing through the exhaust flow channel to avoid waste.

Description

Fuel cell

Technical Field

The application relates to the technical field of fuel cells, in particular to a fuel cell.

Background

Fuel cells are typically formed by stacking a plurality of fuel cells, each of which is supplied with a reactant gas (e.g., hydrogen or air) to perform an electrochemical reaction and generate an electric current. Heat is generated during the electrochemical reaction process, which causes the temperature of the fuel cell to rise, affecting the performance and service life of the fuel cell.

A heat exchange flow channel is generally arranged in the fuel cell, and a heat exchange medium is introduced into the heat exchange flow channel so as to reduce the temperature of the fuel cell in a heat exchange mode. In actual use, the phenomenon of heat exchange flow channel blockage exists, and the heat exchange flow channel blockage easily causes local overheating of the fuel cell monomer, thereby influencing the performance and the service life of the fuel cell. How to avoid the blockage of the heat exchange flow passage and prevent local overheating is a technical problem to be solved in the field.

Disclosure of Invention

According to research, bubbles are sometimes mixed in the heat exchange medium, and the bubbles easily block the heat exchange flow passage after entering the heat exchange flow passage.

The application aims to provide a fuel cell, which aims to relieve the problem that a heat exchange flow channel is blocked by bubbles so as to prevent the fuel cell from being locally overheated.

Embodiments of the present application are implemented as follows:

in a first aspect, an embodiment of the present application provides a fuel cell, including a cell body; the heat exchange flow passage is arranged on the battery body; an exhaust runner arranged on the battery body; the gas-liquid centrifugal separation pump is respectively communicated with the heat exchange flow channel and the exhaust flow channel, and is used for separating gas in the heat exchange medium, inputting the heat exchange medium after separating the gas into the heat exchange flow channel and inputting the gas into the exhaust flow channel.

According to the technical scheme provided by the application, most of gas is separated from the heat exchange medium through the gas-liquid centrifugal separation pump, so that the content of bubbles in the heat exchange flow channel is reduced, the problem that the bubbles block the heat exchange flow channel is solved, and meanwhile, the gas is discharged through the exhaust flow channel, the heat exchange medium entrained in the gas is taken away, so that the part of heat exchange medium can be uniformly and intensively discharged to avoid pollution, or returned to the heat exchange medium source after passing through the exhaust flow channel to avoid waste.

In one embodiment of the present application, the gas-liquid centrifugal separation pump includes: a housing; the liquid inlet pipe is connected with the shell and the heat exchange medium source so as to introduce heat exchange medium into the shell; the rotating mechanism is arranged in the shell and used for driving the heat exchange medium in the shell to rotate so as to separate the heat exchange medium from the gas; the liquid outlet pipe is connected with the shell and the heat exchange flow channel so as to input a heat exchange medium after gas separation into the heat exchange flow channel; the air outlet pipe is connected with the shell and the air exhaust flow passage so as to input air into the air exhaust flow passage.

In the above technical scheme, the heat exchange medium and the bubbles are separated along the radial direction under the action of centrifugal force, the heat exchange medium has a tendency of gathering towards the inner wall of the shell, the bubbles are concentrated towards the central area of the inner space of the shell, and the bubbles are respectively output to the exhaust flow passage through the air outlet pipe, and the heat exchange medium after the bubbles are separated is output to the heat exchange flow passage through the liquid outlet pipe.

In one embodiment of the present application, the inner space of the housing is cylindrical, the rotation mechanism is coaxially disposed in the housing, the air outlet pipe is disposed at one end of the housing, and the liquid outlet pipe is disposed at a side wall of the housing.

In the above technical scheme, the bubbles are concentrated towards the central area of the inner space of the shell, so that the bubbles in the central area are conveniently output from the air outlet pipe at the end part of the shell, and the separated heat exchange medium is conveniently output from the liquid outlet pipe arranged on the side wall of the shell.

In one embodiment of the application, the housing is disposed obliquely to the horizontal direction, and the air outlet pipe is located at the upper end of the housing.

In the technical scheme, bubbles in the central area of the aggregation shell are easy to flow upwards or overflow under the buoyancy effect so as to flow out through the air outlet pipe at the upper end of the shell.

In one embodiment of the application, the outlet pipe is located near the lower end of the housing.

In the above technical solution, since the bubbles are mainly gathered toward the center of the housing and above the housing, the content of bubbles entering the liquid outlet pipe can be reduced as much as possible by connecting the liquid outlet pipe to the side wall near the lower end of the housing.

In one embodiment of the application, the outlet pipe is located at the lower side of the housing in the vertical direction.

The bubble is difficult for gathering towards the downside of casing in vertical direction, in above-mentioned technical scheme, through being located the downside of casing in vertical direction with the drain pipe, can reduce the bubble content that gets into the drain pipe as far as possible.

In one embodiment of the application, the housing is inclined at an angle of 30 ° -90 °.

In the technical scheme, in the inclined angle range, bubbles flow upwards while flowing towards the center, so that the bubbles can be further gathered and are convenient to discharge.

In one embodiment of the application, the liquid inlet pipe is arranged on the side wall of the shell, and the liquid outlet direction of the liquid inlet pipe is tangential to the rotation direction of the heat exchange medium in the shell.

In the technical scheme, the newly-entered heat exchange medium is prevented from disturbing the flow direction of the original heat exchange medium and reducing the flow velocity, so that the heat exchange medium in the shell can be ensured to be subjected to enough centrifugal force so as to separate the heat exchange medium from bubbles.

In one embodiment of the present application, the gas-liquid centrifugal separation pump further includes:

the first filter piece is arranged in the shell to separate the space where the outlet of the liquid inlet pipe and the inlet of the liquid outlet pipe are located, and the surface of the first filter piece is hydrophobic.

In the technical scheme, bubbles are not easy to break into small bubbles when contacting the hydrophobic surface, and then are not easy to enter the liquid outlet pipe through the first filter element, and bubbles which do not enter the liquid outlet pipe continue to rotate along with the rotating fluid and gradually gather to the central area under the actions of centrifugal force, buoyancy and the like.

the second filter piece is arranged at the inlet of the air outlet pipe, and the surface of the second filter piece is hydrophilic.

In the technical scheme, after the bubbles contact the second filter element with the surface having hydrophilicity, the bubbles are easy to break into smaller bubbles, so that the volume of the bubbles entering the air outlet pipe is smaller, and the air outlet pipe and the air outlet flow passage are prevented from being blocked by the bubbles.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of a fuel cell according to an embodiment of the present application;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic longitudinal cross-sectional view of a gas-liquid separation mechanism according to an embodiment of the present application;

FIG. 5 is a schematic longitudinal cross-sectional view of a gas-liquid separation mechanism according to another embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of a gas-liquid separation mechanism according to another embodiment of the present application;

fig. 7 is a schematic longitudinal section of a gas-liquid separation mechanism according to another embodiment of the present application.

Icon: 1000-battery body, 100-battery monomer, 110-first polar plate, 120-diffusion reaction layer, 103-second polar plate, 200-heat exchange runner, 201-main runner, 202-branch runner, 300-exhaust runner, 400-gas-liquid centrifugal separation pump, 410-shell, 420-liquid inlet pipe, 430-rotary mechanism, 440-liquid outlet pipe, 450-gas outlet pipe, 460-first filter piece, 470-second filter piece.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

A fuel cell is a chemical device that directly converts chemical energy possessed by fuel into electric energy.

As shown in fig. 1 and 2, an embodiment of the present application provides a fuel cell including a cell body 1000 and a gas-liquid centrifugal separation pump 400.

The battery body 1000 includes a plurality of battery cells 100 stacked.

Each battery cell 100 includes a first electrode plate 110, a second electrode plate 103, and a diffusion reaction layer 120.

The diffusion reaction layer 120 includes two gas diffusion layers, two catalyst layers and a proton exchange membrane, the proton exchange membrane is approximately parallel to the first polar plate 110 and the second polar plate 103, the two catalyst layers are respectively disposed on two sides of the proton exchange membrane, and the two gas diffusion layers are respectively disposed on surfaces of the two catalyst layers.

One of the first electrode plate 110 and the second electrode plate 103 is a positive electrode plate, and the other is a negative electrode plate. The opposite surfaces of the first electrode plate 110 and the second electrode plate 103 (i.e., the surfaces located inside the battery cell 100) are respectively provided with several tens or hundreds of gas flow channels through which a reaction gas (e.g., hydrogen or air) is inputted, the gas diffuses out of the gas flow channels, and is uniformly distributed on the surface of the catalyst layer through the gas diffusion layer, so as to supply an electrochemical reaction.

The battery body 1000 is further provided with a heat exchange flow channel 200, the heat exchange flow channel 200 is used for flowing a heat exchange medium, and the heat exchange medium exchanges heat with the plurality of battery cells 100, so that the purpose of temperature adjustment is achieved, and the battery cells 100 are at a proper working temperature, so that the performance is improved, and the service life is prolonged.

The heat exchange flow channel 200 includes a main flow channel 201 and a plurality of branch flow channels 202.

The main flow channel 201 extends in the stacking direction of the plurality of battery cells 100.

The branch flow channels 202 are formed on the surface of the battery cell 100. Each of the branch flow passages 202 communicates with the main flow passage 201.

Illustratively, the gas flow channels are recessed on the opposite surfaces of the first and second plates 110, 103 and raised on the surfaces of the first and second plates 110, 103 facing away from each other, thereby forming a branching flow channel 202 between adjacent two gas flow channels, each plate having a plurality of branching flow channels 202 on the side of the cell 100 exterior.

The plurality of branch flow passages 202 of two adjacent battery cells 100 can be in one-to-one correspondence, so that flow passages with larger cross-sectional areas are formed by enclosing; the plurality of branch flow passages 202 of the adjacent two battery cells 100 may be staggered so as to flow through each of the plurality of branch flow passages.

The heat exchange flow channels 200 need to remain clear and once the heat exchange flow channels 200 are blocked, the fuel cells will overheat, affecting the performance and life of the fuel cells.

In order to avoid the blockage of the heat exchange flow passage 200, in the prior art, the viscosity, the freezing point and other performances of the heat exchange medium are adjusted so that the heat exchange medium has good fluidity and is not easy to freeze and solidify. The heat exchange medium is also subjected to impurity removal so as to prevent the heat exchange flow channel 200 from being blocked due to the mixing of impurities in the heat exchange medium. However, the above means has found that the problem of the blockage of the heat exchange flow passage 200 cannot be completely solved, and the problem of local overheating of the battery cell 100 due to the blockage of the branch flow passage 202 is easily caused. Further investigation has found that there are sometimes air bubbles mixed in the heat exchange medium, which after entering the heat exchange flow passage 200 tend to clog the heat exchange flow passage 200, especially the branch flow passage 202 having a relatively small cross-sectional area.

In an embodiment of the present application, the fuel cell further includes an exhaust runner 300.

The exhaust flow channel 300 is provided in the battery body 1000. The exhaust flow channel 300 may be formed in combination, for example, with an opening provided in each electrode plate, a plurality of openings overlapping and sealing between adjacent electrode plates to form the exhaust flow channel 300 extending in the stacking direction of the plurality of battery cells 100. The exhaust flow channel 300 may also be formed separately, for example, as a pipe connected to the battery body 1000.

The gas-liquid centrifugal separation pump 400 is disposed between the heat exchange medium source and the battery body 1000, and the heat exchange medium passes through the gas-liquid centrifugal separation pump 400 and then enters the battery body 1000. The gas-liquid centrifugal separation pump 400 is used for separating gas in the heat exchange medium, the gas-liquid centrifugal separation pump 400 is respectively communicated with the heat exchange flow channel 200 and the exhaust flow channel 300, the heat exchange medium after the gas separation is input into the heat exchange flow channel 200, and the separated gas is input into the exhaust flow channel 300, so that the heat exchange flow channel 200 is prevented from being blocked by bubbles.

It should be noted that, the materials input into the exhaust flow channel 300 through the gas-liquid centrifugal separation pump 400 include, but are not limited to, gas, and may also include heat exchange medium; the material fed into the heat exchange flow path 200 through the gas-liquid centrifugal separation pump 400 includes, but is not limited to, a heat exchange medium, and may include a small amount of gas. The purpose of the embodiment of the application is to separate most of the gas from the heat exchange medium through the gas-liquid centrifugal separation pump 400 so as to reduce the content of bubbles in the heat exchange flow channel 200 and alleviate the problem that the bubbles block the heat exchange flow channel 200, and meanwhile, the gas exhaust flow channel 300 not only discharges the gas, but also takes away the heat exchange medium entrained in the gas, so that the part of the heat exchange medium can be uniformly and intensively discharged to avoid pollution, or returned to the heat exchange medium source after passing through the gas exhaust flow channel 300 to avoid waste. For example, the exhaust runner 300 is connected to a heat exchange medium source through a pipe; for another example, a recovery flow channel is provided in the battery body 1000, the recovery flow channel extends along the stacking direction of the plurality of battery cells 100, both the heat exchange flow channel 200 and the exhaust flow channel 300 are communicated with the recovery flow channel, and the recovery flow channel is connected with a heat exchange medium source to guide the heat exchange medium in the heat exchange flow channel 200 and the exhaust flow channel 300 to the heat exchange medium source for recovery.

As shown in fig. 3, the gas-liquid centrifugal separation pump 400 includes a housing 410, a rotation mechanism 430, a liquid inlet pipe 420, a liquid outlet pipe 440, and a gas outlet pipe 450.

The housing 410 forms a space therein for accommodating a heat exchange medium. The liquid inlet pipe 420 has one end connected to the housing 410 and the other end connected to a heat exchange medium source to introduce a heat exchange medium from the heat exchange medium source into a space inside the housing 410.

The heat exchange medium source is a container for storing heat exchange medium and can also comprise a power mechanism for driving the heat exchange medium to flow.

The rotation mechanism 430 is disposed inside the case 410, and is used to drive the heat exchange medium in the case 410 to rotate, so that the heat exchange medium and the air bubbles are separated in the radial direction under the centrifugal force, the heat exchange medium has a tendency to gather toward the inner wall of the case 410, and the air bubbles are concentrated toward the central region of the inner space of the case 410, so that the air bubbles and the heat exchange medium can be output respectively.

One end of the liquid outlet pipe 440 is connected with the shell 410, the other end is connected with the heat exchange flow channel 200, and heat exchange medium gathered towards the inner wall of the shell 410 flows to the heat exchange flow channel 200 through the liquid outlet pipe 440.

One end of the air outlet pipe 450 is connected to the case 410, and the other end is connected to the air outlet flow channel 300, and air bubbles collected in the central region of the case 410 flow to the air outlet flow channel 300 through the air outlet pipe 450. The bubbles may be dispersed to the air outlet pipe 450 after being broken, or may be mixed with part of the heat exchange medium in the central area and flow out from the air outlet pipe 450.

In some embodiments, the interior space of the housing 410 is cylindrical, and the rotation mechanism 430 is coaxially disposed with the housing 410.

The rotation mechanism 430 may have various structures as long as it can rotate the flow path of the heat exchange medium inside the case 410.

For example, as shown in fig. 4, the rotation mechanism 430 is an impeller, and the rotation shaft of the impeller is disposed coaxially with the cylindrical housing 410.

As another example, the rotation mechanism 430 is a drum (not shown in the drawings), the rotation axis of which is disposed coaxially with the cylindrical housing 410, and through holes allowing the heat exchange medium and the bubbles to pass therethrough are provided on the drum so that the heat exchange medium gathers toward the side wall of the housing 410 and the bubbles gather toward the central region.

The liquid outlet pipe 440 is provided at a sidewall of the case 410 to output the separated heat exchange medium. An outlet pipe 450 is provided at one end of the case 410 to facilitate the output of bubbles in the central region. Specifically, the outlet pipe 450 is provided at a middle position of the end surface of the case 410.

The housing 410 may be arranged in various ways, in other words, the rotation axis of the rotation mechanism 430 has various arrangement angles.

In some embodiments, as shown in fig. 4, the housing 410 may be disposed to be inclined with respect to the horizontal direction, and the outlet duct 450 is located at the upper end of the housing 410. By doing so, bubbles in the central region of the aggregation case 410 are easily flowed upward or overflowed by buoyancy force so as to flow out through the outlet pipe 450 at the upper end of the case 410.

In some embodiments, the outlet tube 440 is disposed near the lower end of the housing 410. Since bubbles are mainly collected toward the center of the case 410 and above the case 410, the content of bubbles entering the liquid outlet pipe 440 can be reduced as much as possible by connecting the liquid outlet pipe 440 to the side wall near the lower end of the case 410.

In some embodiments, the liquid outlet pipe 440 is connected to the lower side of the housing 410 in the vertical direction, and the bubbles are less likely to gather towards the lower side of the housing 410 in the vertical direction due to the smaller density of the bubbles, so that the content of the bubbles entering the liquid outlet pipe 440 can be reduced as much as possible.

In some embodiments, as shown in fig. 4, the housing 410 is inclined at an angle α of 30 ° -90 °, in which the bubbles flow toward the center while flowing upward, so that the bubbles can be further gathered, facilitating the discharge of the bubbles.

In some embodiments, as shown in fig. 5 and 6, the liquid inlet pipe 420 is disposed on a side wall of the housing 410, and the liquid outlet direction of the liquid inlet pipe 420 is tangential to the rotation direction of the heat exchange medium in the housing 410, so that the new heat exchange medium is prevented from entering the housing 410 to disturb the flow direction of the original fluid, reduce the flow rate, and ensure that the heat exchange medium in the housing 410 can be subjected to enough centrifugal force so as to separate the heat exchange medium from the air bubbles.

In some embodiments, the gas-liquid centrifugal separation pump 400 further includes a first filter 460, where the first filter 460 is disposed in the housing 410, and a surface of the first filter 460 has hydrophobicity, and the first filter 460 is configured to separate a space where an outlet of the liquid inlet pipe 420 is located from a space where an inlet of the liquid outlet pipe 440 is located, so as to prevent bubbles in the heat exchange medium from entering the liquid outlet pipe 440.

As shown in fig. 5 and 6, the first filter 460 is disposed at the inlet of the liquid outlet pipe 440, and the surface of the first filter 460 has hydrophobicity. When a portion of the bubbles are close to the sidewall of the housing 410, the bubbles are not easily broken into small bubbles when contacting the hydrophobic surface, and thus the bubbles are not easily introduced into the liquid outlet pipe 440 through the first filter 460, and the bubbles which are not introduced into the liquid outlet pipe 440 continue to rotate with the rotating fluid and gradually gather to the central area under the action of centrifugal force, buoyancy force, etc.

The first filter 460 may also be configured in other structures, and in other embodiments, as shown in fig. 7, the first filter 460 is configured in a cylindrical structure, and the first filter 460 is located in the housing 410 to divide the inner space of the housing 410 into two parts, wherein: the liquid inlet pipe 420 and the gas outlet pipe 450 are respectively connected to the casing 410 and are communicated with the space enclosed by the first filtering piece 460; the drain pipe 440 is connected to a sidewall of the housing 410, and the drain pipe 440 communicates with a space other than the first filter 460. Illustratively, as shown in connection with fig. 7, the first filter 460 surrounds the central area of the interior of the housing 410, the first filter 460 is spaced apart from the sidewall of the housing 410, the rotation mechanism 430 is disposed in the central area surrounded by the first filter 460, the liquid inlet pipe 420 is disposed at the bottom of the housing 410 and is located in the central area surrounded by the first filter 460, the gas outlet pipe 450 is disposed at the top of the housing 410 and is located in the central area surrounded by the first filter 460, and the liquid outlet pipe 440 is disposed in the sidewall of the housing 410 and communicates with the spacing space between the first filter 460 and the housing 410. The heat exchange medium firstly enters the space surrounded by the first filter 460 and is driven to rotate, and under the action of centrifugal force, the heat exchange medium flows towards the first filter 460 and finally flows out of the liquid outlet pipe 440 of the shell 410, bubbles in the heat exchange medium are converged towards the rotation center, and the bubbles are discharged from the air outlet pipe 450 under the action of internal pressure and buoyancy. Through the above arrangement, the bubbles are mainly gathered near the rotation center, the bubbles passing through the first filter 460 are very few, the bubbles in the space between the housing 410 and the first filter 460 are greatly reduced, the bubbles are difficult to enter the liquid outlet pipe 440, and the problem that the bubbles block the heat exchange flow channel is solved.

In some embodiments, the inner wall of the housing 410 is also hydrophobic so that bubbles do not adhere to the inner wall of the housing 410, nor collapse upon touching the housing 410, so that bubbles gradually accumulate to a central region as much as possible under centrifugal force, buoyancy, etc.

The hydrophobicity refers to the property that the surface of the material cannot be wetted by water, the water contact angle of the material is larger than 90 degrees, and bubbles in water are not easy to break when contacting the hydrophobic surface.

Alternatively, the water contact angle of the first filter 460 and the inner wall of the housing 410 approaches 180 °. For example, a superhydrophobic coating is provided on the surface of the first filter 460 to make the surface of the first filter 460 hydrophobic; a superhydrophobic coating is provided on an inner wall of the case 410 to make the inner wall of the case 410 have hydrophobicity.

In some embodiments, the gas-liquid centrifugal separation pump 400 further includes a second filter 470, the second filter 470 being disposed at an inlet of the gas outlet pipe 450, the surface of the second filter 470 having hydrophilicity. Hydrophilic refers to the property of the surface of a material that is readily wetted by water, the water contact angle of the material being less than 90 °. The bubbles are easily broken into smaller bubbles after contacting the second filter 470, so that the volume of the bubbles entering the outlet pipe 450 is smaller, so that the outlet pipe 450 and the exhaust runner 300 are prevented from being blocked by the bubbles.

In the foregoing embodiments, the descriptions of the embodiments are focused on, and the portions of one embodiment that are not described in detail in the foregoing embodiments may be referred to in the foregoing detailed description of other embodiments, which are not described herein again.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the application may be combined as suitable.

Similarly, it should be appreciated that in order to simplify the present disclosure and thereby facilitate an understanding of one or more embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure. This method of disclosure, however, is not intended to imply that more features than are required by the subject application. Indeed, less than all of the features of a single embodiment disclosed above.

It should be noted that: like reference numerals and letters designate like items in the drawings of the present application, and thus once an item is defined in one drawing, no further definition or explanation thereof is necessary in the subsequent drawings.

In the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship that the product of the application is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Each patent, patent application publication, and other material, such as articles, books, specifications, publications, documents, etc., cited herein is hereby incorporated by reference in its entirety except for any application history file that is inconsistent or otherwise conflict with the present disclosure, which places the broadest scope of the claims in this application (whether presently or after it is attached to this application). It is noted that the description, definition, and/or use of the term in the appended claims controls the description, definition, and/or use of the term in this application if there is a discrepancy or conflict between the description, definition, and/or use of the term in the appended claims.

Claims

1. A fuel cell, characterized by comprising:

a battery body;

the heat exchange flow passage is arranged on the battery body;

an exhaust runner arranged on the battery body;

the gas-liquid centrifugal separation pump is respectively communicated with the heat exchange flow channel and the exhaust flow channel, and is used for separating gas in the heat exchange medium, inputting the heat exchange medium after separating the gas into the heat exchange flow channel and inputting the gas into the exhaust flow channel.

2. The fuel cell according to claim 1, wherein the gas-liquid centrifugal separation pump comprises:

a housing;

the liquid inlet pipe is connected with the shell and the heat exchange medium source so as to introduce heat exchange medium into the shell;

the rotating mechanism is arranged in the shell and used for driving the heat exchange medium in the shell to rotate so as to separate the heat exchange medium from the gas;

the liquid outlet pipe is connected with the shell and the heat exchange flow channel so as to input a heat exchange medium after gas separation into the heat exchange flow channel;

the air outlet pipe is connected with the shell and the air exhaust flow passage so as to input air into the air exhaust flow passage.

3. The fuel cell according to claim 2, wherein the inner space of the housing is cylindrical, the rotation mechanism is coaxially provided in the housing, the air outlet pipe is provided at one end of the housing, and the liquid outlet pipe is provided at a side wall of the housing.

4. A fuel cell according to claim 3, wherein the housing is disposed obliquely to the horizontal direction, and the air outlet pipe is located at the upper end of the housing.

5. The fuel cell of claim 4, wherein the outlet tube is proximate a lower end of the housing.

6. The fuel cell according to claim 4, wherein the liquid outlet pipe is connected to a lower side of the housing in a vertical direction.

7. The fuel cell according to claim 4, wherein the inclination angle of the housing is 30 ° -90 °.

8. The fuel cell according to claim 2, wherein the liquid inlet pipe is provided on a side wall of the housing, and a liquid outlet direction of the liquid inlet pipe is tangential to a rotation direction of the heat exchange medium in the housing.

9. The fuel cell according to claim 2, characterized in that the gas-liquid centrifugal separation pump further comprises:

10. The fuel cell according to claim 2, characterized in that the gas-liquid centrifugal separation pump further comprises: