CN110010908A - A kind of fuel cell and battery pile - Google Patents
A kind of fuel cell and battery pile Download PDFInfo
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- CN110010908A CN110010908A CN201910279658.3A CN201910279658A CN110010908A CN 110010908 A CN110010908 A CN 110010908A CN 201910279658 A CN201910279658 A CN 201910279658A CN 110010908 A CN110010908 A CN 110010908A
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- negative electrode
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- positive electrode
- electrolyte
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- 239000000446 fuel Substances 0.000 title claims abstract description 59
- 239000003792 electrolyte Substances 0.000 claims abstract description 135
- 230000035515 penetration Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 11
- 238000001816 cooling Methods 0.000 abstract description 22
- 230000008602 contraction Effects 0.000 abstract description 18
- 235000013372 meat Nutrition 0.000 abstract description 18
- 230000007423 decrease Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 6
- 230000005779 cell damage Effects 0.000 abstract description 4
- 208000037887 cell injury Diseases 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 20
- 238000010438 heat treatment Methods 0.000 description 6
- 208000037656 Respiratory Sounds Diseases 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910021526 gadolinium-doped ceria Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- RKGLVBDJPJBDOS-UHFFFAOYSA-N [O-2].[Ce+3].[O-2].[Gd+3] Chemical compound [O-2].[Ce+3].[O-2].[Gd+3] RKGLVBDJPJBDOS-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910002119 nickel–yttria stabilized zirconia Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
Abstract
This application involves a kind of fuel cell and battery piles, belong to field of fuel cell technology.A kind of fuel cell includes negative electrode, positive electrode and stratiform electrolyte, and stratiform electrolyte is set between negative electrode and positive electrode, at least one in negative electrode and positive electrode is with multiple grooves.Multiple grooves are for discharging negative electrode or positive electrode internal stress, to reduce the deformation generated due to stress, prevent negative electrode or positive electrode from leading to cell damage due to temperature distortion and the disengaging of stratiform electrolyte.It guides negative electrode or the positive electrode contraction crack in heated cooling meat to generate along multiple grooves simultaneously, negative electrode is reduced or avoided or positive electrode cracks, prevents negative electrode or positive electrode from causing performance to decline compared with multiple cracks due to generating.A kind of battery pile includes multiple fuel cells, and multiple fuel cell series obtain high voltage and power.
Description
Technical field
This application involves field of fuel cell technology, in particular to a kind of fuel cell and battery pile.
Background technique
Solid fuel cell be it is a kind of will be directly stored under high temperature the chemical energy in fuel and oxidant efficiently, ring
Border is converted to all solid state chemical generated device of electric energy with open arms.
Since the operating temperature of solid fuel cell is very high, generally at 650~1000 DEG C or so, the thermal expansion of electrode is significant
Greater than dielectric film, it is easy to fall off from dielectric film after electrode expanded by heating to lead to cell damage.In addition, electrode be heated repeatedly it is swollen
Swollen cooling easily causes crackle generation that performance is caused to decline.
Summary of the invention
The application provides a kind of fuel cell and battery pile, to be easy to fall off from dielectric film after overcoming electrode expanded by heating
Expanded by heating cooling easily causes crackle to generate repeatedly with electrode, so as to cause battery performance decline, damage or reduces battery
The problem of service life.
The application first aspect provides a kind of fuel cell comprising:
Negative electrode, positive electrode and stratiform electrolyte, stratiform electrolyte are set between negative electrode and positive electrode；
With multiple grooves, multiple grooves can be used in discharging stress at least one in negative electrode and positive electrode, and subtract
The small deformation generated due to stress.
In the above-mentioned technical solutions, stratiform electrolyte is set between negative electrode and positive electrode, in negative electrode and positive electrode
At least one is with multiple grooves, and when negative electrode or positive electrode expanded by heating, multiple grooves can be used in discharging negative electrode or sun
Electrode interior stress prevents negative electrode or positive electrode due to temperature distortion and stratiform to reduce the deformation generated due to stress
Electrolyte disengaging leads to cell damage.Guide simultaneously negative electrode or positive electrode in heated cooling meat contraction crack along multiple
Groove generates, and negative electrode is reduced or avoided or positive electrode cracks, and prevents negative electrode or positive electrode due to generating compared with multiple cracks
Cause performance to decline, reduces its service life.
In some embodiments of aforementioned first aspect, positive electrode is set to negative electrode as supporter, multiple grooves.
In the present embodiment, be set to multiple grooves of negative electrode for discharging negative electrode internal stress, reduce negative electrode by
In the deformation that stress generates, makes negative electrode keep adapting to the connection with stratiform electrolyte, further decrease entire fuel cell
Internal stress, the adaptability after raising positive electrode generation deformation with stratiform electrolyte.
In some embodiments of aforementioned first aspect, negative electrode is set to positive electrode as supporter, multiple grooves.
In the present embodiment, be set to multiple grooves of positive electrode for discharging positive electrode internal stress, reduce positive electrode by
In the deformation that stress generates, makes negative electrode keep adapting to the connection with stratiform electrolyte, further decrease entire fuel cell
Internal stress, the adaptability after raising negative electrode generation deformation with stratiform electrolyte.
In some embodiments of aforementioned first aspect, stratiform electrolyte is respectively arranged at as supporter, multiple grooves
Negative electrode and positive electrode.
In the present embodiment, be set to multiple grooves of negative electrode for discharging negative electrode internal stress, reduce negative electrode by
In the deformation that stress generates, negative electrode is made to keep adapting to the connection with stratiform electrolyte, the multiple grooves for being set to positive electrode are used
In release positive electrode internal stress, reduce the deformation that positive electrode is generated due to stress, positive electrode is made to keep adapting to be electrolysed with stratiform
The connection of matter further decreases the internal stress of entire fuel cell.
In some embodiments of aforementioned first aspect, fuel cell includes for increasing the porous laminated of interface binding power
Electrolyte；
Multiple grooves are set to negative electrode, and porous laminated electrolyte is set between negative electrode and stratiform electrolyte；
Or, multiple grooves are set to positive electrode, porous laminated electrolyte is set between positive electrode and stratiform electrolyte；
Or, multiple grooves are respectively arranged at negative electrode and positive electrode, porous laminated electrolyte be respectively arranged at positive electrode with
Between stratiform electrolyte, between negative electrode and stratiform electrolyte.
In the present embodiment, due to be provided with multiple grooves negative electrode, positive electrode is due to the contact surface with stratiform electrolyte
Product reduces, it is possible that the problem of being not connected firmly.Therefore multiple grooves are connected with by porous laminated electrolyte
Negative electrode, positive electrode and stratiform electrolyte, porous laminated electrolyte have porous structure, and porous laminated electrolyte not only increases
With negative electrode, the contact area of positive electrode.The contact area with stratiform electrolyte is also increased, negative electrode, sun are further increased
The binding force of electrode and stratiform electrolyte makes to be provided with the connection of the negative electrode of multiple grooves, positive electrode and stratiform electrolyte more
Add securely, it is less easy to fall off.
Further, on the basis of previous embodiment, porous laminated electrolyte with a thickness of 0.1~2 μm.
In the present embodiment, porous laminated electrolyte should not be too thick, influences the transmission speed of ion, also should not be too thin, can lead
Cause connection effect bad.
In some embodiments of aforementioned first aspect, negative electrode have the first face for being connect with stratiform electrolyte and with
The second opposite face of first face；
Multiple grooves are set to the first face with the depth for being less than negative electrode thickness；
Or, multiple grooves are respectively arranged at the first face and the second face with the depth for being less than negative electrode thickness；
Or, multiple grooves are with the first face of depth penetration and the second face more than or equal to negative electrode thickness.
In the present embodiment, for positive electrode as supporter, negative electrode is provided with multiple grooves, and multiple grooves are set to negative electricity
The joint face of pole and stratiform electrolyte reduces the joint face of negative electrode and stratiform electrolyte due to preventing by thermogenetic deformation
Negative electrode and stratiform electrolyte are detached from, and contraction crack is generated along multiple grooves when guiding negative electrode cooling meat；Or multiple ditches
Slot is set to negative electrode and the joint face of stratiform electrolyte and corresponding another side, reduces entire negative electrode and is generated due to heated
Deformation, prevent negative electrode and stratiform electrolyte to be detached from, contraction crack is raw along multiple grooves when guiding negative electrode cooling meat
At；Or multiple grooves run through negative electrode along negative electrode thickness direction, reduce entire negative electrode due to preventing by thermogenetic deformation
Negative electrode and stratiform electrolyte are detached from, and contraction crack is generated along multiple grooves when guiding negative electrode cooling meat.
In some embodiments of aforementioned first aspect, positive electrode have the third face that is connect with stratiform electrolyte and with
The opposite fourth face in third face；
Multiple grooves are set to third face with the depth for being less than positive electrode thickness；
Or, multiple grooves are respectively arranged at third face and fourth face with the depth for being less than positive electrode thickness；
Or, multiple grooves be greater than or equal to positive electrode thickness depth penetration third face and fourth face.
In the present embodiment, for positive electrode as supporter, positive electrode is provided with multiple grooves, and multiple grooves are set to positive electricity
The joint face of pole and stratiform electrolyte reduces the joint face of positive electrode and stratiform electrolyte due to preventing by thermogenetic deformation
Positive electrode and stratiform electrolyte are detached from, and contraction crack is generated along multiple grooves when guiding positive electrode cooling meat；Or multiple ditches
Slot is set to positive electrode and the joint face of stratiform electrolyte and corresponding another side, reduces entire positive electrode and is generated due to heated
Deformation, prevent positive electrode and stratiform electrolyte to be detached from, contraction crack is raw along multiple grooves when guiding positive electrode cooling meat
At；Or multiple grooves run through positive electrode along positive electrode thickness direction, reduce entire positive electrode due to preventing by thermogenetic deformation
Positive electrode and stratiform electrolyte are detached from, and contraction crack is generated along multiple grooves when guiding positive electrode cooling meat.
In some embodiments of aforementioned first aspect, negative electrode have the first face for being connect with stratiform electrolyte and with
The second opposite face of first face, positive electrode have the third face and the opposite with the first face the 4th connected with stratiform electrolyte
Face；
Multiple grooves are set to the first face, to be less than the depth of negative electrode thickness respectively with the depth less than positive electrode thickness
It is set to third face；
Or, multiple grooves are respectively arranged at the first face and the second face, with the depth for being less than negative electrode thickness respectively to be less than
The depth of positive electrode thickness is respectively arranged at third face and fourth face；
Or, multiple grooves respectively be greater than or equal to negative electrode thickness the first face of depth penetration and the second face, to be greater than
Or equal to the depth penetration third face of positive electrode thickness and fourth face.
In the present embodiment, stratiform electrolyte is provided with multiple grooves, multiple ditches as supporter, negative electrode and positive electrode
Slot is set to the joint face of negative electrode, positive electrode and stratiform electrolyte, reduces the connection of negative electrode, positive electrode and stratiform electrolyte
Due to preventing negative electrode, positive electrode and stratiform electrolyte to be detached from by thermogenetic deformation, guidance negative electrode, positive electrode are cooling in face
Contraction crack is generated along multiple grooves when contraction；Or multiple grooves are set to the company of negative electrode, positive electrode and stratiform electrolyte
Junction and corresponding another side reduce entire negative electrode, positive electrode due to preventing negative electrode, positive electricity by thermogenetic deformation
Pole and stratiform electrolyte are detached from, and contraction crack is generated along multiple grooves when guiding negative electrode, positive electrode cooling meat；Or it is multiple
Groove runs through negative electrode, positive electrode along negative electrode, positive electrode thickness direction, reduces entire negative electrode, positive electrode is produced due to heated
Raw deformation prevents negative electrode, positive electrode and stratiform electrolyte to be detached from, and guides to shrink when negative electrode, positive electrode cooling meat and split
Line is generated along multiple grooves.
The application second aspect provides a kind of battery pile comprising:
Multiple fuel cells, multiple fuel cell series.
Output voltage is lower when in the above-mentioned technical solutions, due to single operation of fuel cells, and current density is about smaller, is
Meet motor demand, obtains high voltage and power, multiple fuel cells are obtained into battery pile in series and parallel.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the fuel cell with positive electricity extremely supporter of the application one embodiment；
Fig. 2 is a kind of figure of the negative electrode groove of the application one embodiment；
Fig. 3 is another figure of the negative electrode groove of the application one embodiment；
Fig. 4 is another figure of the negative electrode groove of the application one embodiment；
Fig. 5 is another figure of the negative electrode groove of the application one embodiment；
Fig. 6 is the structural schematic diagram of the fuel cell with positive electricity extremely supporter of another embodiment of the application；
Fig. 7 is the structural schematic diagram of the fuel cell with positive electricity extremely supporter of another embodiment of the application；
Fig. 8 is the structural schematic diagram of the fuel cell with negative electricity extremely supporter of the application one embodiment；
Fig. 9 is the structural schematic diagram of the fuel cell with negative electricity extremely supporter of another embodiment of the application；
Figure 10 is the structural schematic diagram of the fuel cell with negative electricity extremely supporter of another embodiment of the application；
Figure 11 is the application one embodiment using stratiform electrolyte as the structural schematic diagram of the fuel cell of supporter；
Figure 12 is the application another embodiment using stratiform electrolyte as the structural schematic diagram of the fuel cell of supporter；
Figure 13 is another embodiment of the application using stratiform electrolyte as the structural representation of the fuel cell of supporter
Figure；
Figure 14 is the structural schematic diagram of the fuel cell comprising porous laminated electrolyte of the application one embodiment；
Figure 15 is the structural schematic diagram of the fuel cell comprising porous laminated electrolyte of another embodiment of the application；
Figure 16 is the structural schematic diagram of the fuel cell comprising porous laminated electrolyte of another embodiment of the application.
Icon: 100- negative electrode；200- positive electrode；300- stratiform electrolyte；400- groove；The porous laminated electrolysis of 500-
Matter.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that term " first ", " second " " third " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " etc. shall be understood in a broad sense.For example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition
The concrete meaning of above-mentioned term in this application.
A kind of fuel cell is provided in the embodiment of the present application, for chemical energy possessed in fuel to be directly changed into electricity
Energy.Fig. 1 is the structural schematic diagram of the fuel cell of the application one embodiment.The fuel cell includes negative electrode 100, positive electrode
200 and stratiform electrolyte 300, stratiform electrolyte 300 be set between negative electrode 100 and positive electrode 200, stratiform electrolyte 300
It is connected to negative electrode 100 and positive electrode 200.
Negative electrode 100 is LSC (La1-xSrxCoO3,0<x<1)、LSCF(La1-xSrxCo1-yFeyO3, 0 < x < 1,0 < y < 1) or
SSC(SmxSr1-x CoO3, 0 < x < 1) and negative electrode 100.
Positive electrode 200 is the cermet positive electrode 200 of the alloy containing Ni or Ni, such as Ni-YSZ (Yttria-
Stabilized Zirconia, yttria-stabilized zirconia) positive electrode 200, Ni-GDC (Gadolinia-Doped Ceria,
Adulterate gadolinium oxide cerium oxide) positive electrode 200, wherein in positive electrode 200 percent by volume of Ni between 20~80%.
Stratiform electrolyte 300 is rear-earth-doped cerium oxide or rear-earth-doped oxidation zirconium.
When the fuel cell is operating, it is continually fed into fuel gas to 200 side of positive electrode, the positive electrode with catalytic action
200 adsorption fuel gas, and positive electrode 200 and stratiform electrolyte 300 are diffused by the porous structure of positive electrode 200
Interface.It is continually fed into oxygen or air in 100 side of negative electrode, 100 surface adsorbed oxygen of negative electrode with porous structure, due to
The catalytic action of negative electrode 100 itself, so that O2Obtaining electronics becomes O2-, under the action of chemical potential, O2-Into an electrolyte
The solid oxygen ion conductor of effect eventually arrives at the boundary of solid electrolyte Yu positive electrode 200 since concentration gradient causes to spread
Face reacts with fuel gas, and the electronics lost returns to negative electrode 100 by external circuit.
The production temperature and operating temperature of fuel cell are all very high, reach 500~1200 DEG C, since the thermal expansion of electrode is aobvious
It writes and is greater than dielectric film, deformation is generated after electrode expanded by heating and is easy to fall off from dielectric film to lead to cell damage.
In order to reduce the thermal deformation of electrode generated when heated, and reduction electrode in expanded by heating cooling procedure repeatedly
The crackle of middle generation, using positive electrode 200 as supporter, negative electrode 100 has to be connected the embodiment of the present application with stratiform electrolyte 300
Multiple grooves 400, multiple ditches are arranged in the first face of negative electrode 100 in the first face and the second face opposite with the first face connect
The depth of slot 400 is respectively smaller than the depth of 100 thickness of negative electrode, and multiple grooves 400 can discharge answering inside negative electrode 100
Power reduces the deformation generated due to stress, prevent negative electrode 100 toward a direction it is severely deformed after lead to local buckling, in turn
The contact area with stratiform electrolyte 300 is reduced, and is separated with stratiform electrolyte 300.Reduce the interior of entire fuel cell simultaneously
Portion's stress, the adaptability after the raising generation deformation of positive electrode 200 with stratiform electrolyte 300.
Please refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, multiple grooves 400 are in the embodiment of the present application with Fig. 2, Fig. 3, Fig. 4 or Fig. 5
Array figure is set to the first face of negative electrode 100.It should be noted that the set-up mode of multiple grooves 400 does not limit to
In the array figure of Fig. 2, Fig. 3, Fig. 4 or Fig. 5.
Fig. 6 is the structural schematic diagram of the fuel cell of another embodiment of the application, and the embodiment of the present application is with the work of positive electrode 200
For supporter, multiple grooves 400 are respectively arranged at the first face and the second face to be less than the depth of 100 thickness of negative electrode, reduce whole
A negative electrode 100 is due to preventing negative electrode 100 and stratiform electrolyte 300 to be detached from, guiding negative electrode 100 by thermogenetic deformation
Contraction crack is generated along multiple grooves 400 when cooling meat.
Fig. 7 is the structural schematic diagram of the fuel cell of another embodiment of the application, and the embodiment of the present application is with the work of positive electrode 200
For supporter, multiple grooves 400 are reduced whole with the first face of depth penetration and the second face more than or equal to 100 thickness of negative electrode
A negative electrode 100 is due to preventing negative electrode 100 and stratiform electrolyte 300 to be detached from, guiding negative electrode 100 by thermogenetic deformation
Contraction crack is generated along multiple grooves 400 when cooling meat.
Fig. 8 is the structural schematic diagram of another embodiment of the application, the embodiment of the present application using negative electrode 100 as supporter,
Positive electrode 200 has the third face connected with stratiform electrolyte 300 and the fourth face opposite with third face, multiple grooves 400
Be set to third face to be less than the depth of 200 thickness of positive electrode, reduce the joint face of positive electrode 200 and stratiform electrolyte 300 by
In by thermogenetic deformation, prevents positive electrode 200 and stratiform electrolyte 300 to be detached from, shunk when guiding 200 cooling meat of positive electrode
Crackle is generated along multiple grooves 400.
Fig. 9 is the structural schematic diagram of another embodiment of the application, the embodiment of the present application using negative electrode 100 as supporter,
Multiple grooves 400 are respectively arranged at third face and fourth face with the depth for being less than 200 thickness of positive electrode, reduce entire positive electrode
200 due to preventing positive electrode 200 and stratiform electrolyte 300 to be detached from, guiding 200 cooling meat of positive electrode by thermogenetic deformation
When contraction crack generated along multiple grooves 400.
Figure 10 is the structural schematic diagram of another embodiment of the application, the embodiment of the present application using negative electrode 100 as supporter,
Multiple grooves 400 be greater than or equal to 200 thickness of positive electrode depth penetration third face and fourth face, reduce entire positive electrode
200 due to preventing positive electrode 200 and stratiform electrolyte 300 to be detached from, guiding 200 cooling meat of positive electrode by thermogenetic deformation
When contraction crack generated along multiple grooves 400.
Figure 11 is the structural schematic diagram of another embodiment of the application, and the embodiment of the present application is using stratiform electrolyte 300 as branch
Support body, negative electrode 100 have the first face and second face opposite with the first face connected with stratiform electrolyte 300, positive electrode
200 have the third face connected with stratiform electrolyte 300 and a fourth face opposite with the first face, multiple grooves 400 respectively with
Less than 100 thickness of negative electrode depth be set to the first face, be less than 200 thickness of positive electrode depth be set to third face, subtract
Small negative electrode 100, positive electrode 200 and stratiform electrolyte 300 joint face due to by thermogenetic deformation, prevent negative electrode 100,
Positive electrode 200 and stratiform electrolyte 300 are detached from, and contraction crack is along more when guiding negative electrode 100,200 cooling meat of positive electrode
A groove 400 generates.
Figure 12 is the structural schematic diagram of another embodiment of the application, and the embodiment of the present application is using stratiform electrolyte 300 as branch
Support body, multiple grooves 400 are respectively arranged at the first face and the second face, with the depth for being less than 100 thickness of negative electrode respectively to be less than
The depth of 200 thickness of positive electrode is respectively arranged at third face and fourth face, reduce entire negative electrode 100, positive electrode 200 due to by
Thermogenetic deformation prevents negative electrode 100, positive electrode 200 and stratiform electrolyte 300 to be detached from, and guides negative electrode 100, positive electrode
Contraction crack is generated along multiple grooves 400 when 200 cooling meat.
Figure 13 is the structural schematic diagram of another embodiment of the application, and the embodiment of the present application is using stratiform electrolyte 300 as branch
Support body, multiple grooves 400 respectively be greater than or equal to 100 thickness of negative electrode the first face of depth penetration and the second face, to be greater than
Or depth penetration third face and fourth face equal to 200 thickness of positive electrode, reduce entire negative electrode 100, positive electrode 200 due to by
Thermogenetic deformation prevents negative electrode 100, positive electrode 200 and stratiform electrolyte 300 to be detached from, and guides negative electrode 100, positive electrode
Contraction crack is generated along multiple grooves 400 when 200 cooling meat.
Figure 14 is another embodiment of the embodiment of the present application, and fuel cell includes the porous layer for increasing interface binding power
Shape electrolyte 500, for the embodiment of the present application using positive electrode 200 as supporter, porous laminated electrolyte 500 is set to negative electrode
Between 100 and stratiform electrolyte 300, the negative electrode 100 of multiple grooves 400 is connected with by porous laminated electrolyte 500
With stratiform electrolyte 300, porous laminated electrolyte 500 has porous structure, and porous laminated electrolyte 500 not only increases and yin
The contact area of electrode 100 also increases the contact area with stratiform electrolyte 300, further increases negative electrode 100 and stratiform
The binding force of electrolyte 300, the negative electrode 100 for making to be provided with multiple grooves 400 and the connection of stratiform electrolyte 300 are more firm
Gu less easy to fall off.
Figure 15 is another embodiment of the embodiment of the present application, and fuel cell includes the porous layer for increasing interface binding power
Shape electrolyte 500, for the embodiment of the present application using negative electrode 100 as supporter, porous laminated electrolyte 500 is set to positive electrode
Between 200 and stratiform electrolyte 300, the positive electrode 200 of multiple grooves 400 is connected with by porous laminated electrolyte 500
With stratiform electrolyte 300, porous laminated electrolyte 500 has porous structure, and porous laminated electrolyte 500 not only increases and sun
The contact area of electrode 200 also increases the contact area with stratiform electrolyte 300, further increases positive electrode 200 and stratiform
The binding force of electrolyte 300 keeps the positive electrode 200 for being provided with multiple grooves 400 and the connection of stratiform electrolyte 300 more firm
Gu less easy to fall off.
Figure 16 is another embodiment of the embodiment of the present application, and fuel cell includes the porous layer for increasing interface binding power
Shape electrolyte 500, using stratiform electrolyte 300 as supporter, porous laminated electrolyte 500 is respectively arranged at the embodiment of the present application
Between positive electrode 200 and stratiform electrolyte 300, between negative electrode 100 and stratiform electrolyte 300, pass through porous laminated electrolyte
500 are connected with negative electrode 100, positive electrode 200 and the stratiform electrolyte 300 of multiple grooves 400, porous laminated electrolyte
500 have porous structure, and porous laminated electrolyte 500 not only increases the contact area with negative electrode 100, positive electrode 200,
The contact area with stratiform electrolyte 300 is increased, negative electrode 100, positive electrode 200 and stratiform electrolyte 300 are further increased
Binding force, keep the negative electrode 100, positive electrode 200 and the connection of stratiform electrolyte 300 that are provided with multiple grooves 400 more firm
Gu less easy to fall off.
A kind of battery pile is also provided in the embodiment of the present application, for obtaining high voltage and power.The battery pile includes more
The fuel cell of a such as above-described embodiment, multiple fuel cell series.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of fuel cell, which is characterized in that the fuel cell includes negative electrode, positive electrode and stratiform electrolyte, described
Stratiform electrolyte is set between the negative electrode and the positive electrode；
At least one in the negative electrode and the positive electrode can be used in release and answer with multiple grooves, the multiple groove
Power, and reduce the deformation generated due to stress.
2. fuel cell according to claim 1, which is characterized in that the positive electrode is as supporter, the multiple ditch
Slot is set to the negative electrode.
3. fuel cell according to claim 1, which is characterized in that the negative electrode is as supporter, the multiple ditch
Slot is set to the positive electrode.
4. fuel cell according to claim 1, which is characterized in that layered electrolyte is described more as supporter
A groove is respectively arranged at the negative electrode and the positive electrode.
5. fuel cell according to claim 1, which is characterized in that the fuel cell includes for increasing interface cohesion
The porous laminated electrolyte of power；
The multiple groove is set to the negative electrode, the porous laminated electrolyte be set to the negative electrode with it is layered
Between electrolyte；
Or the multiple groove is set to the positive electrode, the porous laminated electrolyte be set to the positive electrode with it is described
Between stratiform electrolyte；
Or the multiple groove is respectively arranged at the negative electrode and the positive electrode, and the porous laminated electrolyte is set respectively
It is placed between the positive electrode and layered electrolyte, between the negative electrode and layered electrolyte.
6. fuel cell according to claim 5, which is characterized in that the porous laminated electrolyte with a thickness of 0.1~2
μm。
7. fuel cell according to claim 1, which is characterized in that the negative electrode has to be connected with layered electrolyte
The first face and second face opposite with first face connect；
The multiple groove is set to first face with the depth for being less than the negative electrode thickness；
Or the multiple groove is respectively arranged at first face and described second with the depth for being less than the negative electrode thickness
Face；
Or the multiple groove is to be greater than or equal to the first face and described second described in the depth penetration of the negative electrode thickness
Face.
8. fuel cell according to claim 1, which is characterized in that the positive electrode has to be connected with layered electrolyte
The third face connect and the fourth face opposite with the third face；
The multiple groove is set to the third face with the depth for being less than the positive electrode thickness；
Or the multiple groove is respectively arranged at the third face and the described 4th with the depth for being less than the positive electrode thickness
Face；
Or the multiple groove is to be greater than or equal to third face and the described 4th described in the depth penetration of the positive electrode thickness
Face.
9. fuel cell according to claim 1, which is characterized in that the negative electrode has to be connected with layered electrolyte
The first face and second face opposite with first face connect, the positive electrode have the connect with layered electrolyte
Three faces and the fourth face opposite with first face；
The multiple groove is set to first face, to be less than the depth of the negative electrode thickness respectively to be less than the positive electricity
The depth of pole thickness is set to the third face；
Or the multiple groove is respectively arranged at first face and described respectively to be less than the depth of the negative electrode thickness
Second face is respectively arranged at the third face and the fourth face with the depth for being less than the positive electrode thickness；
Or the multiple groove is respectively to be greater than or equal to the first face and described described in the depth penetration of the negative electrode thickness
Second face, be greater than or equal to the positive electrode thickness depth penetration described in third face and the fourth face.
10. a kind of battery pile, which is characterized in that the battery pile includes multiple fuel as described in any one of claims 1 to 9
Battery, multiple fuel cell series.
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