CN109449463A - A kind of fuel cell control device - Google Patents
A kind of fuel cell control device Download PDFInfo
- Publication number
- CN109449463A CN109449463A CN201811303564.7A CN201811303564A CN109449463A CN 109449463 A CN109449463 A CN 109449463A CN 201811303564 A CN201811303564 A CN 201811303564A CN 109449463 A CN109449463 A CN 109449463A
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- CN
- China
- Prior art keywords
- control device
- voltage
- fuel cell
- channel
- battery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04783—Pressure differences, e.g. between anode and cathode
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses a kind of fuel cell control devices, the fuel cell includes at least one sub- battery, the sub- battery includes two electrodes separated by film, two distribution plates and two electric installations, it is characterized in that, have at least one face of the distribution plate for distributing the channel of fuel gas and/or the channel of the product for recycling the electrochemical reaction carried out in the battery, and it is conductive surface that, which there is at least partly surface in two faces of one of distribution plate, described two electric installations are electrically connected respectively from the different conductive surfaces or electrical contact, described device includes voltage measuring apparatus and channel capacity control device, the voltage device connection refers to the electric installation to measure the voltage difference between two electric installations.
Description
Technical field
The present invention relates to field of fuel cell technology, in particular to a kind of fuel cell control device.
Background technique
PEMFC (Proton Exchange Membrane Fuel Cells) or the membrane cell of DMFC (direct methanol fuel cell) type are current
It is undergoing fast development, because they have very promising potentiality in above-mentioned field.
The operating principle of membrane cell or battery is based on oxidation reaction and reduction reaction.Both chemical reactions are complementary
, and carried out simultaneously in the either side of proton exchange membrane or electrolyte.The title of membrane cell usually with oxidizing elemental
Property is in relation to the methanol of DMFC type battery, the hydrogen of PEMFC type battery.The function of PEMFC battery is based on the fuel comprising hydrogen or instead
The oxidation of answering property gas, contacts with plate or surface, including one or more catalysis materials, such as platinum connects with the electrode or anode
The hydrogen radical of touching lower reaction oxidation accordingly: 2H2->4H++4e-。
The product of the reaction separates at anode.Electronics is spread before the surface of connection distribution plate by diffusion layer.It should
Distribution plate includes one or more channels on its surface, and being open and being parallel to one or more channels allows the fuel to distributing
Plate, diffusion layer flow between anode and film.Fuel passes through in opening or aperture introduction passage.Opening is located at the surface of distribution plate
On, it is opposite with including the face in the channel.In the case that reaction is not disrupted, fuel is introduced continuously into channel, and temperature is logical
Often between 60 DEG C to 80 DEG C.
Film in the battery be used for so that: H+ ion or proton are by film, proton exchange membrane or electrolyte diffusion, until it
Reach the surface of cathode.On the other hand, film is impermeable for the fuel introduced in anode and cathode side, to prevent
They directly react together.Film can be made of one or more layers, and the layer is including, for example, sulfonated perfluorinated hydrocarbon (PFC).
Once assembling or installation fuel cell, so that it may by being introduced the fuel into each battery chamber positioned at distribution plate and
Carry out starting fluid battery in the channel of interface between diffusion layer.For PEMFC type fuel cell, in distribution plate and diffusion layer
Between the gas that is made of pressurized hydrogen of the fuel that introduces, and the fuel introduced between distribution plate and diffusion layer is based on oxygen
The gas or forced air of gas.Fuel starts and maintains the redox reaction occurred in the battery.Just because of this reason,
They are continuously introduced into.The surface that redox reaction occurs is known as active surface or active region.The power of battery depends on living
The ratio on property surface.And fuel cell can have different shapes: round, ellipse, rectangle, square or other shapes
Shape.In order to most preferably play a role, PEMFC combines various sometimes opposite conditions.Firstly, operation temperature is as high as possible, together
When keep enough aquations, so that proton is passed through membrane diffusion.The permeability of proton or the proton-conducting of film are limitations
One of factor of reaction.Since 60 DEG C, under the collective effect of temperature and reactant gas flow, film is mainly in the entrance in channel
Locate the trend for having dry.This dry-out phenomenon can generate dead zone.In order to keep film wet and therefore keep most of active table
Face can be such that reactant gas is hydrated by external device (ED).The technology provides the correct function of battery in air, reaches as high as
80℃.The pressure of gas is also to promote the parameter of film well-hydrated, but it means that can reduce electricity using big energy is consumed
The whole efficiency in pond.Secondly, seeking fuel in order to be carried out continuously electrochemical reaction and being connect with the catalyst for being present in electrode surface
Touching.However, the excessive hydration of battery may generate the accumulation of water in hole and on the surface of electrode and diffusion layer.Liquid shape
Electrochemical reaction in the more or less permeable reactant gas of the water of formula, limitation or stopping battery.The ratio in dead zone also increases
Add, causes the quick of cell voltage and almost irreversible decline in high current output.In order to prevent this phenomenon, by
The reaction gas flowed in the channel or channel of interface between distribution plate and diffusion layer, or by other means, it is special
It is not that water is regularly discharged by the way that battery is discharged.Therefore, in general, the gas flow rate of fuel is more than or less than electrochemical reaction
The gas flow needed.The ratio introduced between the gas flow of each room and required gas flow has reacted the effect of fuel cell
Rate.
Summary of the invention
The invention proposes a kind of fuel cell control device, the fuel cell includes at least one sub- battery, described
Sub- battery includes two electrodes separated by film, two distribution plates and two electric installations, which is characterized in that the distribution plate
Have at least one face for distributing the channel of fuel gas and/or for recycling the electrochemical reaction carried out in the battery
The channel of product, and it is conductive surface, described two conductions that, which there is at least partly surface in two faces of one of distribution plate,
For device respectively from different conductive surface electrical connections or electrical contact, described device includes voltage measuring apparatus and channel capacity
Control device, the voltage device connection refer to the electric installation to measure the voltage difference between two electric installations.
Wherein the voltage measuring apparatus is also used to measure the voltage of each electric installation.
Wherein the channel capacity control device controls the channel capacity according to the voltage difference and voltage.
Wherein electric installation is placed as close to the channel.
Wherein the conductive surface basically forms ring textures.
Wherein the channel capacity control device is more than voltage difference threshold value in the voltage difference and the voltage is more than electricity
After pressing threshold value, flow that channel described in parameter regulation is adjusted to multiplied by one according to the voltage difference.
Specific embodiment
In order to enable the objectives, technical solutions, and advantages of the present invention are more clearly understood, below in conjunction with embodiment, to this
Invention is further elaborated；It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, and does not have to
It is of the invention in limiting.To those skilled in the art, after access is described in detail below, other systems of the present embodiment
System, method and/or feature will become obvious.All such additional systems, method, feature and advantage are intended to be included in
It in this specification, is included within the scope of the invention, and by the protection of the appended claims.In description described in detail below
The other feature of the disclosed embodiments, and these characteristic roots will be apparent according to described in detail below.
Embodiment one:
The invention proposes a kind of fuel cell control device, the fuel cell includes at least one sub- battery, described
Sub- battery includes two electrodes separated by film, two distribution plates and two electric installations, which is characterized in that the distribution plate
Have at least one face for distributing the channel of fuel gas and/or for recycling the electrochemical reaction carried out in the battery
The channel of product, and it is conductive surface, described two conductions that, which there is at least partly surface in two faces of one of distribution plate,
For device respectively from different conductive surface electrical connections or electrical contact, described device includes voltage measuring apparatus and channel capacity
Control device, the voltage device connection refer to the electric installation to measure the voltage difference between two electric installations.
Wherein the voltage measuring apparatus is also used to measure the voltage of each electric installation.
Wherein the channel capacity control device controls the channel capacity according to the voltage difference and voltage.
Wherein electric installation is placed as close to the channel.
Wherein the conductive surface basically forms ring textures.
Wherein the channel capacity control device is more than voltage difference threshold value in the voltage difference and the voltage is more than electricity
After pressing threshold value, flow that channel described in parameter regulation is adjusted to multiplied by one according to the voltage difference.
Embodiment two.
The invention proposes a kind of fuel cell control device, the voltage of fuel cell controls its fuel configuration
Speed with product recycling is to improve the efficiency of fuel cell.The fuel cell includes the sub- battery of multiple same structures, institute
Stating sub- battery includes two electrodes separated by film, two distribution plates and two electric installations.
The film is used for through the ion for participating in reaction, and is that can not seep for the fuel introduced in anode and cathode side
Saturating, to prevent them from directly reacting together.Film can be made of one or more layers, and the layer is including, for example, sulfonated perfluorocarbon
Change hydrocarbon (PFC).
There is the channel for distributing fuel gas at least one face of the distribution plate and/or be used to recycle in battery
The channel of the product of the electrochemical reaction of middle progress, and it is to lead that, which there is at least partly surface in two faces of one of distribution plate,
Ammeter face, for described two electric installations respectively from different conductive surface electrical connections or electrical contact, described device includes electricity
Pressure measuring device and channel capacity control device, the voltage device connection refer to the electric installation to measure two electric installations
Between voltage difference.
Wherein the voltage measuring apparatus is also used to measure the voltage of each electric installation.The wherein channel capacity control
Device controls the channel capacity according to the voltage difference and voltage.The voltage difference analyzed as before especially reacted fuel
The inner case of battery.
Wherein electric installation is placed as close to the channel.Wherein the conductive surface basically forms annulus or ellipse
For annulus to surround channel, measurement in this way obtains the voltage difference of the point in channel with more direct reactive fuel inside battery situation.
Wherein the channel capacity control device is more than voltage difference threshold value in the voltage difference and the voltage is more than electricity
After pressing threshold value, flow that channel described in parameter regulation is adjusted to multiplied by one according to the voltage difference.This parameter can pass through comparison
Test is to adjust.Such as the fuel cell of 1,000 pieces of test or more obtains an average value.
Although describing the present invention by reference to various embodiments above, but it is to be understood that of the invention not departing from
In the case where range, many changes and modifications can be carried out.That is methods discussed above, system or equipment etc. show
Example.Various configurations can be omitted suitably, replace or add various processes or component.For example, in alternative configuration, can with
Described order in a different order executes method, and/or can add, and omits and/or combine the various stages.Moreover, about
The feature of certain configuration descriptions can be combined with various other configurations.Can combine in a similar way configuration different aspect and
Element.In addition, many elements are only range of the example without limiting the disclosure or claims with the development of technology.
Give detail in the description to provide to the thorough understanding for including the exemplary configuration realized.However,
Configuration can be practiced without these specific details for example, having been illustrated with well-known circuit, process, calculation
Method, structure and technology are without unnecessary details, to avoid fuzzy configuration.The description only provides example arrangement, and unlimited
The scope of the claims processed, applicability or configuration.It is used on the contrary, front will provide the description of configuration for those skilled in the art
Realize the enabled description of described technology.It, can be to the function of element without departing from the spirit or the scope of the present disclosure
It can and arrange and carry out various changes.
In addition, many operations can be in parallel or concurrently although each operation can describe the operations as sequential process
It executes.Furthermore it is possible to rearrange the sequence of operation.One process may have other steps.Furthermore, it is possible to pass through hardware, soft
Part, firmware, middleware, code, hardware description language or any combination thereof carry out the example of implementation method.When software, firmware, in
Between when realizing in part or code, program code or code segment for executing necessary task can store in such as storage medium
In non-transitory computer-readable medium, and described task is executed by processor.
To sum up, be intended to foregoing detailed description be considered as it is illustrative and not restrictive, and it is to be understood that described
Claim (including all equivalents) is intended to limit the spirit and scope of the present invention.The above embodiment is interpreted as only using
In illustrating the present invention rather than limit the scope of the invention.After the content for having read record of the invention, technology
Personnel can make various changes or modifications the present invention, these equivalence changes and modification equally fall into the claims in the present invention and limited
Fixed range.
Claims (6)
1. a kind of fuel cell control device, the fuel cell includes at least one sub- battery, and the sub- battery includes by film
Two electrodes separated, two distribution plates and two electric installations, which is characterized in that have at least one face of the distribution plate
There is the channel of the channel for distributing fuel gas and/or the product for recycling the electrochemical reaction carried out in the battery, and
And two faces of one of distribution plate have at least partly surface be conductive surface, described two electric installations respectively with difference
Conductive surface electrical connection or electrical contact, described device include voltage measuring apparatus and channel capacity control device, it is described
Voltage device connection refers to the electric installation to measure the voltage difference between two electric installations.
2. fuel cell control device according to claim 1, wherein the voltage measuring apparatus be also used to measure it is each
The voltage of electric installation.
3. fuel cell control device according to claim 2, wherein the channel capacity control device is according to the electricity
Pressure difference and voltage control the channel capacity.
4. fuel cell control device according to claim 3, wherein electric installation is placed as close to the channel.
5. fuel cell control device according to claim 4, wherein the conductive surface basically forms ring textures.
6. fuel cell control device according to claim 4, the channel capacity control device is super in the voltage difference
Overvoltage difference threshold value and the voltage are adjusted to lead to described in parameter regulation according to the voltage difference more than after voltage threshold multiplied by one
The flow in road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303564.7A CN109449463A (en) | 2018-11-02 | 2018-11-02 | A kind of fuel cell control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303564.7A CN109449463A (en) | 2018-11-02 | 2018-11-02 | A kind of fuel cell control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109449463A true CN109449463A (en) | 2019-03-08 |
Family
ID=65550136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811303564.7A Withdrawn CN109449463A (en) | 2018-11-02 | 2018-11-02 | A kind of fuel cell control device |
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| CN (1) | CN109449463A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1883072A (en) * | 2003-11-19 | 2006-12-20 | 日产自动车株式会社 | Fuel cell system |
| CN101371392A (en) * | 2006-01-23 | 2009-02-18 | 日产自动车株式会社 | Fuel cell system |
| KR20110029499A (en) * | 2009-09-15 | 2011-03-23 | 한국에너지기술연구원 | Water flooding prevention system for fuel cell and control method of water flooding prevention using water flooding revention system |
| CN102195065A (en) * | 2010-03-17 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Variable anode flow rate for fuel cell vehicle start-up |
| CN102473938A (en) * | 2009-07-30 | 2012-05-23 | 丰田自动车株式会社 | Fuel cell system |
| US20120237841A1 (en) * | 2011-03-17 | 2012-09-20 | Karsten Reiners | Fuel cell system and corresponding operating process |
| CN105594041A (en) * | 2013-09-30 | 2016-05-18 | 智慧能量有限公司 | Anode bleed control in fuel cell stack |
| CN105609812A (en) * | 2014-11-15 | 2016-05-25 | 丰田自动车株式会社 | Control method of flow regulating valve of oxidizing gas and flow regulation device |
-
2018
- 2018-11-02 CN CN201811303564.7A patent/CN109449463A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1883072A (en) * | 2003-11-19 | 2006-12-20 | 日产自动车株式会社 | Fuel cell system |
| CN101371392A (en) * | 2006-01-23 | 2009-02-18 | 日产自动车株式会社 | Fuel cell system |
| CN102473938A (en) * | 2009-07-30 | 2012-05-23 | 丰田自动车株式会社 | Fuel cell system |
| KR20110029499A (en) * | 2009-09-15 | 2011-03-23 | 한국에너지기술연구원 | Water flooding prevention system for fuel cell and control method of water flooding prevention using water flooding revention system |
| CN102195065A (en) * | 2010-03-17 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Variable anode flow rate for fuel cell vehicle start-up |
| US20120237841A1 (en) * | 2011-03-17 | 2012-09-20 | Karsten Reiners | Fuel cell system and corresponding operating process |
| CN105594041A (en) * | 2013-09-30 | 2016-05-18 | 智慧能量有限公司 | Anode bleed control in fuel cell stack |
| CN105609812A (en) * | 2014-11-15 | 2016-05-25 | 丰田自动车株式会社 | Control method of flow regulating valve of oxidizing gas and flow regulation device |
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Application publication date: 20190308 |