A fuel cell

Abstract

The application relates to a fuel cell, which comprises a cell body, a heat exchange flow channel arranged in the cell body, an exhaust flow channel arranged in the cell body, and a gas-liquid centrifugal separation pump communicated with the heat exchange flow channel and the exhaust flow channel respectively, the gas-liquid centrifugal separation pump being used for separating gas in heat exchange medium, and inputting the heat exchange medium after gas separation into the heat exchange flow channel and inputting the gas into the exhaust flow channel. The technical scheme provided by the application separates most of the gas from the heat exchange medium through the gas-liquid centrifugal separation pump, so as to reduce the bubble content in the heat exchange flow channel, relieve the problem of bubble blockage of the heat exchange flow channel, and simultaneously make the exhaust flow channel not only exhaust the gas, but also take away the heat exchange medium entrained in the gas, so that the heat exchange medium can be uniformly and centrally discharged to avoid pollution, or returned to a heat exchange medium source after the exhaust flow channel to avoid waste.

Description

Technical Field

[0001] This application relates to the field of fuel cell technology, and more specifically, to a fuel cell. Background Technology

[0002] Fuel cells are typically composed of multiple fuel cell units stacked together. Each fuel cell unit is supplied with a reactant gas (such as hydrogen or air) to carry out an electrochemical reaction and generate an electric current. The electrochemical reaction generates heat, causing the fuel cell temperature to rise, which affects its performance and lifespan.

[0003] Fuel cells typically contain heat exchange channels through which a heat exchange medium flows to reduce the fuel cell temperature through heat exchange. In practical applications, blockage of these heat exchange channels can occur, easily leading to localized overheating of individual fuel cell units, thus affecting fuel cell performance and lifespan. How to avoid heat exchange channel blockage and prevent localized overheating is a pressing technical problem that needs to be solved in this field. Summary of the Invention

[0004] Research has found that the heat exchange medium sometimes contains air bubbles, which can easily clog the heat exchange channels after entering them.

[0005] This application aims to provide a fuel cell that alleviates the problem of heat exchange channels being blocked by air bubbles, thereby preventing localized overheating of the fuel cell.

[0006] The embodiments of this application are implemented as follows:

[0007] In a first aspect, embodiments of this application provide a fuel cell, which includes a battery body; a heat exchange channel disposed in the battery body; an exhaust channel disposed in the battery body; and a gas-liquid centrifugal separator pump connected to the heat exchange channel and the exhaust channel respectively. The gas-liquid centrifugal separator pump is used to separate gas in the heat exchange medium and input the heat exchange medium after gas separation into the heat exchange channel and input the gas into the exhaust channel.

[0008] The technical solution provided in this application separates most of the gas from the heat exchange medium through a gas-liquid centrifugal separator pump, thereby reducing the bubble content in the heat exchange channel and alleviating the problem of bubble blockage in the heat exchange channel. At the same time, the exhaust channel not only removes the gas, but also carries away the heat exchange medium entrained in the gas, so that this part of the heat exchange medium can be discharged in a unified and centralized manner to avoid pollution, or return to the heat exchange medium source after passing through the exhaust channel to avoid waste.

[0009] In one embodiment of this application, the gas-liquid centrifugal separator pump includes: a housing; an inlet pipe connecting the housing and a heat exchange medium source to introduce a heat exchange medium into the housing; a rotating mechanism disposed inside the housing for driving the heat exchange medium inside the housing to rotate, thereby separating the heat exchange medium and gas; an outlet pipe connecting the housing and the heat exchange channel to input the separated heat exchange medium into the heat exchange channel; and an outlet pipe connecting the housing and the exhaust channel to input gas into the exhaust channel.

[0010] In the above technical solution, the heat exchange medium and the bubbles are separated radially under the action of centrifugal force. The heat exchange medium tends to gather towards the inner wall of the shell, while the bubbles gather towards the central area of ​​the internal space of the shell. The bubbles are output to the exhaust channel through the gas outlet pipe and the separated heat exchange medium is output to the heat exchange channel through the liquid outlet pipe.

[0011] In one embodiment of this application, the internal space of the housing is cylindrical, the rotating mechanism is coaxially disposed on the housing, the air outlet pipe is disposed at one end of the housing, and the liquid outlet pipe is disposed on the side wall of the housing.

[0012] In the above technical solution, the bubbles are concentrated towards the central area of ​​the internal space of the shell, so that the bubbles in the central area can be output from the gas outlet pipe at the end of the shell, and the separated heat exchange medium can be output from the liquid outlet pipe provided on the side wall of the shell.

[0013] In one embodiment of this application, the housing is inclined relative to the horizontal direction, and the air outlet is located at the upper end of the housing.

[0014] In the above technical solution, the bubbles in the central region of the aggregated shell are easy to flow upward or overflow under the action of buoyancy, so that they can flow out through the air outlet pipe at the upper end of the shell.

[0015] In one embodiment of this application, the liquid outlet pipe is located near the lower end of the housing.

[0016] In the above technical solution, since the bubbles mainly gather towards the center and top of the shell, by connecting the liquid outlet pipe to the side wall near the lower end of the shell, the amount of bubbles entering the liquid outlet pipe can be reduced as much as possible.

[0017] In one embodiment of this application, the liquid outlet pipe is located on the lower side of the housing in the vertical direction.

[0018] Bubbles do not easily accumulate on the lower side of the shell in the vertical direction. In the above technical solution, by placing the liquid outlet pipe on the lower side of the shell in the vertical direction, the amount of bubbles entering the liquid outlet pipe can be minimized.

[0019] In one embodiment of this application, the tilt angle of the housing is 30°-90°.

[0020] In the above technical solution, within the tilt angle range, the bubbles flow upward while flowing towards the center, allowing the bubbles to further accumulate and be easily discharged.

[0021] In one embodiment of this application, the liquid inlet pipe is disposed on the side wall of the housing, and the liquid outlet direction of the liquid inlet pipe is tangential to the rotation direction of the heat exchange medium inside the housing.

[0022] In the above technical solution, the flow direction of the original heat exchange medium is not disturbed and the flow velocity is reduced by the newly introduced heat exchange medium, so as to ensure that the heat exchange medium in the shell can be subjected to sufficient centrifugal force in order to separate the heat exchange medium and the bubbles.

[0023] In one embodiment of this application, the gas-liquid centrifugal separator pump further includes:

[0024] A first filter element is disposed within the housing to separate the space containing the outlet of the inlet pipe and the inlet of the outlet pipe, and the surface of the first filter element is hydrophobic.

[0025] In the above technical solution, when the bubbles come into contact with the hydrophobic surface, they are not easily broken into small bubbles, and therefore are not easily able to pass through the first filter element and enter the liquid outlet pipe. The bubbles that do not enter the liquid outlet pipe continue to rotate with the rotating fluid and gradually gather in the central area under the action of centrifugal force, buoyancy and other forces.

[0026] In one embodiment of this application, the gas-liquid centrifugal separator pump further includes:

[0027] A second filter element is disposed at the inlet of the air outlet pipe, and the surface of the second filter element is hydrophilic.

[0028] In the above technical solution, after the bubble comes into contact with the second filter element with a hydrophilic surface, it is easy to break into smaller bubbles, so that the volume of the bubble entering the air outlet pipe is small, so as to avoid the air outlet pipe and exhaust channel being blocked by bubbles. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A top view of a fuel cell provided in an embodiment of this application;

[0031] Figure 2 for Figure 1 AA cross-section view;

[0032] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0033] Figure 4 This is a longitudinal cross-sectional schematic diagram of a gas-liquid separation mechanism provided in an embodiment of this application;

[0034] Figure 5 A longitudinal cross-sectional schematic diagram of a gas-liquid separation mechanism provided in another embodiment of this application;

[0035] Figure 6 A cross-sectional schematic diagram of a gas-liquid separation mechanism provided in another embodiment of this application;

[0036] Figure 7 This is a longitudinal cross-sectional schematic diagram of a gas-liquid separation mechanism provided in another embodiment of this application.

[0037] Icons: 1000 - Battery body, 100 - Battery cell, 101 - First electrode plate, 102 - Diffusion reaction layer, 103 - Second electrode plate, 200 - Heat exchange channel, 201 - Main channel, 202 - Branch channel, 300 - Exhaust channel, 400 - Gas-liquid centrifugal separator pump, 410 - Housing, 420 - Liquid inlet pipe, 430 - Rotating mechanism, 440 - Liquid outlet pipe, 450 - Gas outlet pipe, 460 - First filter element, 470 - Second filter element. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy.

[0040] like Figure 1 and Figure 2 As shown in the figure, this application provides a fuel cell, which includes a battery body 1000 and a gas-liquid centrifugal separator pump 400.

[0041] The battery body 1000 includes multiple battery cells 100 stacked together.

[0042] Each battery cell 100 includes a first electrode plate 101, a second electrode plate 103, and a diffusion reaction layer 102.

[0043] The diffusion reaction layer 102 includes two gas diffusion layers, two catalyst layers, and a proton exchange membrane. The proton exchange membrane is approximately parallel to the first electrode 101 and the second electrode 103. The two catalyst layers are respectively disposed on both sides of the proton exchange membrane, and the two gas diffusion layers are respectively disposed on the surface of the two catalyst layers.

[0044] One of the first electrode plate 101 and the second electrode plate 103 is a positive electrode plate, and the other is a negative electrode plate. On the opposing surfaces of the first electrode plate 101 and the second electrode plate 103 (that is, the surfaces located inside the battery cell 100), there are dozens or hundreds of gas flow channels. The reaction gas (such as hydrogen or air) is introduced through the gas flow channels, diffuses out of the gas flow channels, and is evenly distributed on the surface of the catalyst layer through the gas diffusion layer to supply the electrochemical reaction.

[0045] The battery body 1000 is also provided with a heat exchange channel 200, which is used to supply heat exchange medium for circulation. The heat exchange medium exchanges heat with multiple battery cells 100 to achieve the purpose of temperature regulation, so that the battery cells 100 are at a suitable operating temperature, thereby improving performance and service life.

[0046] The heat exchange channel 200 includes a main channel 201 and multiple branch channels 202.

[0047] The main channel 201 extends along the stacking direction of multiple battery cells 100.

[0048] Branch channels 202 are formed on the surface of the battery cell 100. Each branch channel 202 is connected to the main channel 201.

[0049] For example, the gas flow channels are recessed on the opposing surfaces of the first electrode plate 101 and the second electrode plate 103, and protrude on the opposing surfaces of the first electrode plate 101 and the second electrode plate 103, thereby forming branch flow channels 202 between two adjacent gas flow channels, and each electrode plate has a plurality of branch flow channels 202 on the side of the battery cell 100 located outside the battery cell.

[0050] Several branch channels 202 of two adjacent battery cells 100 can correspond one-to-one, thereby enclosing and forming a channel with a large cross-sectional area; several branch channels 202 of two adjacent battery cells 100 can also be staggered, so that each can flow independently.

[0051] The heat exchange channel 200 needs to be kept unobstructed. If the heat exchange channel 200 is blocked, it will cause the fuel cell to overheat, affecting the performance and life of the fuel cell.

[0052] To prevent blockage of the heat exchange channel 200, existing technologies have adjusted the viscosity, freezing point, and other properties of the heat exchange medium to ensure good fluidity and prevent freezing. Impurities are also removed from the heat exchange medium to prevent blockage of the heat exchange channel 200. However, these methods have not completely solved the blockage problem of the heat exchange channel 200, and blockage of the branch channels 202 can easily lead to localized overheating of the battery cell 100. Further research revealed that air bubbles sometimes mix into the heat exchange medium. These bubbles, upon entering the heat exchange channel 200, easily blockage the channel, especially the relatively small cross-sectional area of ​​the branch channels 202.

[0053] In this embodiment of the application, the fuel cell further includes an exhaust channel 300.

[0054] An exhaust channel 300 is disposed on the battery body 1000. The exhaust channel 300 can be formed in combination, for example, with an opening in each electrode plate, multiple openings overlapping and adjacent electrode plates sealed to form an exhaust channel 300 extending along the stacking direction of multiple battery cells 100. The exhaust channel 300 can also be formed independently, for example, as a pipe connected to the battery body 1000.

[0055] The gas-liquid centrifugal separator pump 400 is positioned between the heat exchange medium source and the battery body 1000. The heat exchange medium passes through the gas-liquid centrifugal separator pump 400 before entering the battery body 1000. The gas-liquid centrifugal separator pump 400 is used to separate the gas in the heat exchange medium. The gas-liquid centrifugal separator pump 400 is connected to the heat exchange channel 200 and the exhaust channel 300, respectively. The heat exchange medium after gas separation is input into the heat exchange channel 200, while the separated gas is input into the exhaust channel 300, thereby preventing the heat exchange channel 200 from being blocked by air bubbles.

[0056] It should be noted that the substances entering the exhaust channel 300 through the gas-liquid centrifugal separator pump 400 include, but are not limited to, gases, and may also include the heat exchange medium; the substances entering the heat exchange channel 200 through the gas-liquid centrifugal separator pump 400 include, but are not limited to, the heat exchange medium, and may also include a small amount of gas. The purpose of this embodiment is to separate most of the gas from the heat exchange medium through the gas-liquid centrifugal separator pump 400, thereby reducing the bubble content in the heat exchange channel 200 and alleviating the problem of bubble blockage in the heat exchange channel 200. At the same time, the exhaust channel 300 not only discharges the gas, but also carries away the heat exchange medium entrained in the gas, so that this part of the heat exchange medium can be discharged in a unified and centralized manner to avoid pollution, or return to the heat exchange medium source after passing through the exhaust channel 300 to avoid waste. For example, the exhaust channel 300 is connected to the heat exchange medium source via a pipeline; or, a recovery channel is provided in the battery body 1000, the recovery channel extends along the stacking direction of multiple battery cells 100, the heat exchange channel 200 and the exhaust channel 300 are both connected to the recovery channel, and the recovery channel is connected to the heat exchange medium source, so as to guide the heat exchange medium in the heat exchange channel 200 and the exhaust channel 300 to the heat exchange medium source for recovery.

[0057] like Figure 3 As shown, the gas-liquid centrifugal separator pump 400 includes a housing 410, a rotating mechanism 430, an inlet pipe 420, an outlet pipe 440, and an outlet pipe 450.

[0058] The shell 410 forms a space to accommodate the heat exchange medium. One end of the liquid inlet pipe 420 is connected to the shell 410, and the other end is connected to the heat exchange medium source to introduce the heat exchange medium from the heat exchange medium source into the space inside the shell 410.

[0059] The heat exchange medium source is a container for storing the heat exchange medium, and may also include a power mechanism for driving the flow of the heat exchange medium.

[0060] The rotating mechanism 430 is disposed inside the housing 410 and is used to drive the heat exchange medium inside the housing 410 to rotate, so that the heat exchange medium and the bubbles are separated radially under the action of centrifugal force. The heat exchange medium tends to gather toward the inner wall of the housing 410, while the bubbles gather toward the central area of ​​the internal space of the housing 410, so that the bubbles and the heat exchange medium can be output separately.

[0061] One end of the liquid outlet pipe 440 is connected to the shell 410 and the other end is connected to the heat exchange channel 200. The heat exchange medium that gathers towards the inner wall of the shell 410 flows to the heat exchange channel 200 through the liquid outlet pipe 440.

[0062] One end of the outlet pipe 450 is connected to the shell 410, and the other end is connected to the exhaust channel 300. The bubbles that accumulate in the central region of the shell 410 flow through the outlet pipe 450 to the exhaust channel 300. The bubbles may either burst and overflow into the outlet pipe 450, or they may mix with part of the heat exchange medium in the central region and flow out from the outlet pipe 450.

[0063] In some embodiments, the internal space of the housing 410 is cylindrical, and the rotating mechanism 430 is coaxially disposed on the housing 410.

[0064] There are various structures for the rotating mechanism 430, as long as they allow the heat exchange medium to rotate within the casing 410.

[0065] For example, such as Figure 4 As shown, the rotating mechanism 430 is an impeller, and the rotating shaft of the impeller is coaxially arranged with the cylindrical housing 410.

[0066] For example, the rotating mechanism 430 is a drum (not shown in the figure). The rotating shaft of the drum is coaxially arranged with the cylindrical shell 410. The drum is provided with through holes that allow the heat exchange medium and bubbles to pass through, so that the heat exchange medium can accumulate towards the side wall of the shell 410 and the bubbles can accumulate towards the central area.

[0067] A liquid outlet pipe 440 is disposed on the side wall of the housing 410 to discharge the separated heat exchange medium. An air outlet pipe 450 is disposed at one end of the housing 410 to discharge bubbles in the central region. Specifically, the air outlet pipe 450 is disposed at the middle of the end face of the housing 410.

[0068] The housing 410 can be configured in various ways; in other words, the rotation axis of the rotating mechanism 430 can be configured at various angles.

[0069] In some embodiments, such as Figure 4 As shown, the housing 410 can be configured to be tilted relative to the horizontal direction, with the vent pipe 450 located at the upper end of the housing 410. With this configuration, bubbles in the central region of the housing 410 can easily flow upward or dissipate under the action of buoyancy, so as to flow out through the vent pipe 450 at the upper end of the housing 410.

[0070] In some embodiments, the outlet pipe 440 is located near the lower end of the housing 410. Since bubbles mainly accumulate towards the center and top of the housing 410, by connecting the outlet pipe 440 to the side wall near the lower end of the housing 410, the amount of bubbles entering the outlet pipe 440 can be minimized.

[0071] In some embodiments, the outlet pipe 440 is connected to the lower side of the housing 410 in the vertical direction. Since the density of the bubbles is low, the bubbles are not easy to gather towards the lower side of the housing 410 in the vertical direction, which can minimize the amount of bubbles entering the outlet pipe 440.

[0072] In some embodiments, such as Figure 4 As shown, the tilt angle α of the shell 410 is 30°-90°. Within this tilt angle range, the bubbles flow upward while flowing towards the center, which allows the bubbles to further accumulate and facilitates bubble discharge.

[0073] In some embodiments, such as Figure 5 and Figure 6 As shown, the liquid inlet pipe 420 is located on the side wall of the shell 410. The liquid outlet direction of the liquid inlet pipe 420 is tangent to the rotation direction of the heat exchange medium inside the shell 410. This prevents new heat exchange medium from entering the shell 410 and disrupting the original flow direction of the fluid and reducing the flow velocity. It also ensures that the heat exchange medium inside the shell 410 can be subjected to sufficient centrifugal force to separate the heat exchange medium and bubbles.

[0074] In some embodiments, the gas-liquid centrifugal separator pump 400 further includes a first filter element 460 disposed within the housing 410. The surface of the first filter element 460 is hydrophobic. The first filter element 460 is used to separate the space where the outlet of the inlet pipe 420 is located and the space where the inlet of the outlet pipe 440 is located, so as to prevent air bubbles in the heat exchange medium from entering the outlet pipe 440.

[0075] like Figure 5 and Figure 6 As shown, the first filter element 460 is disposed at the inlet of the liquid outlet pipe 440, and the surface of the first filter element 460 is hydrophobic. When some bubbles approach the side wall of the shell 410, they are not easily broken into smaller bubbles when they come into contact with the hydrophobic surface, and thus the bubbles are not easily able to pass through the first filter element 460 and enter the liquid outlet pipe 440. The bubbles that do not enter the liquid outlet pipe 440 continue to rotate with the rotating fluid and gradually gather in the central area under the action of centrifugal force, buoyancy, etc.

[0076] The first filter element 460 can also be configured with other structures, such as in other embodiments. Figure 7 As shown, the first filter element 460 is constructed as a cylindrical structure. The first filter element 460 is located inside the housing 410, dividing the internal space of the housing 410 into two parts. Specifically, the inlet pipe 420 and the outlet pipe 450 are respectively connected to the housing 410 and communicate with the space enclosed by the first filter element 460; the outlet pipe 440 is connected to the side wall of the housing 410 and communicates with the space outside the first filter element 460. For example, in conjunction with... Figure 7As shown, a first filter element 460 surrounds the central region inside the housing 410, and the first filter element 460 is spaced apart from the side wall of the housing 410. A rotating mechanism 430 is disposed within the central region surrounded by the first filter element 460. A liquid inlet pipe 420 is disposed at the bottom of the housing 410 and located within the central region surrounded by the first filter element 460. An air outlet pipe 450 is disposed at the top of the housing 410 and located within the central region surrounded by the first filter element 460. A liquid outlet pipe 440 is disposed on the side wall of the housing 410 and connects the space between the first filter element 460 and the housing 410. The heat exchange medium first enters the space surrounded by the first filter element 460 and is driven to rotate. Under the action of centrifugal force, the heat exchange medium flows towards the first filter element 460 and finally flows out from the liquid outlet pipe 440 of the housing 410. The air bubbles in the heat exchange medium converge towards the center of rotation and are discharged from the air outlet pipe 450 under the action of internal pressure and buoyancy. With the above settings, the bubbles mainly gather near the center of rotation, and very few bubbles pass through the first filter element 460. The number of bubbles in the space between the shell 410 and the first filter element 460 is greatly reduced, making it difficult for bubbles to enter the liquid outlet pipe 440, thus solving the problem of bubbles clogging the heat exchange channel.

[0077] 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 or burst after touching the housing 410, so that the bubbles gradually gather in the central area under the action of centrifugal force, buoyancy and the like.

[0078] The hydrophobicity mentioned in the embodiments of this application refers to the property that the surface of the material cannot be wetted by water, the water contact angle of the material is greater than 90°, and air bubbles in the water are not easily broken when they come into contact with the hydrophobic surface.

[0079] Optionally, the water contact angle between the first filter element 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 element 460 to make the surface of the first filter element 460 hydrophobic; a superhydrophobic coating is provided on the inner wall of the housing 410 to make the inner wall of the housing 410 hydrophobic.

[0080] In some embodiments, the gas-liquid centrifugal separator pump 400 further includes a second filter element 470 disposed at the inlet of the outlet pipe 450. The surface of the second filter element 470 is hydrophilic. Hydrophilicity refers to the property of a material surface being easily wetted by water, with a water contact angle of less than 90°. When air bubbles come into contact with the second filter element 470, they easily break into smaller bubbles, resulting in smaller bubbles entering the outlet pipe 450, thus preventing the outlet pipe 450 and the exhaust channel 300 from being blocked by air bubbles.

[0081] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0082] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0083] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0084] It should be noted that similar reference numerals and letters in the figures of this application indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0085] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0086] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0087] For each patent, patent application, patent application publication, and other material such as articles, books, specifications, publications, and documents referenced in this application, the entire contents of that patent application are incorporated herein by reference, except for historical application documents that are inconsistent with or conflict with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or subsequently appended to this application). It should be noted that if there are any inconsistencies or conflicts between the descriptions, definitions, and / or terminology used in the supplementary materials of this application and the content of this application, the descriptions, definitions, and / or terminology used in this application shall prevail.

Claims

1. A fuel cell, characterized in that, include: Battery body; A heat exchange channel is provided in the battery body; An exhaust channel is provided in the battery body; A gas-liquid centrifugal separator pump is connected to the heat exchange channel and the exhaust channel respectively. The gas-liquid centrifugal separator pump is used to separate the gas in the heat exchange medium and input the heat exchange medium after gas separation into the heat exchange channel and the gas into the exhaust channel. The gas-liquid centrifugal separator pump includes: case; A liquid inlet pipe connects the shell and the heat exchange medium source to introduce the heat exchange medium into the shell. A rotating mechanism, disposed inside the housing, is used to drive the heat exchange medium inside the housing to rotate, thereby separating the heat exchange medium and the gas; The liquid outlet pipe connects the shell and the heat exchange channel to input the heat exchange medium after gas separation into the heat exchange channel; An exhaust pipe connects the housing and the exhaust channel to introduce gas into the exhaust channel; A first filter element is disposed within the housing to separate the space containing the outlet of the inlet pipe and the inlet of the outlet pipe. The surface of the first filter element is hydrophobic. A second filter element is disposed at the inlet of the air outlet pipe, and the surface of the second filter element is hydrophilic. The vent pipe is located at the upper end of the housing; The liquid outlet pipe is located near the lower end of the housing.

2. The fuel cell according to claim 1, characterized in that, The internal space of the housing is cylindrical, the rotating mechanism is coaxially arranged in the housing, the air outlet pipe is located at one end of the housing, and the liquid outlet pipe is located on the side wall of the housing.

3. The fuel cell according to claim 2, characterized in that, The housing is tilted relative to the horizontal direction.

4. The fuel cell according to claim 3, characterized in that, The liquid outlet pipe is connected to the lower side of the housing in the vertical direction.

5. The fuel cell according to claim 3, characterized in that, The tilt angle of the housing is 30°-90°.

6. The fuel cell according to claim 1, characterized in that, The liquid inlet pipe is disposed 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 inside the shell.

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