CN112382775A - Self-sealing metal-air fuel cell with easily fixable cathode - Google Patents
Self-sealing metal-air fuel cell with easily fixable cathode Download PDFInfo
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- CN112382775A CN112382775A CN202011252589.6A CN202011252589A CN112382775A CN 112382775 A CN112382775 A CN 112382775A CN 202011252589 A CN202011252589 A CN 202011252589A CN 112382775 A CN112382775 A CN 112382775A
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- 238000007789 sealing Methods 0.000 title claims abstract description 90
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 50
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 abstract description 8
- 239000010406 cathode material Substances 0.000 abstract description 6
- 239000003792 electrolyte Substances 0.000 description 15
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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- 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
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
- H01M12/065—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode with plate-like electrodes or stacks of plate-like electrodes
-
- 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
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0286—Processes for forming seals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Hybrid Cells (AREA)
Abstract
The invention discloses a metal air fuel cell with self-sealing cathode and easy fixation. The method comprises the following steps: the battery comprises a battery shell, a metal anode assembly, a cathode pressing plate, an anode leading-out piece and a cathode leading-out piece. The battery shell comprises two opposite open end faces, a first sealing groove is formed in a frame of each open end face, a first sealing element is arranged in each first sealing groove, and a cathode holding structure is arranged inside each open end face. The metal anode is inserted into the battery shell through the anode through groove, and the anode base is fixed on the end face of the battery shell. The cathode pressing plate covers the open end face and is clamped through a buckle, the cathode pressing plate is of a frame structure, a second sealing groove is formed in the outer frame of the cathode pressing plate, a second sealing element is arranged in the second sealing groove, and the cathode is clamped between the first sealing element and the second sealing element. The open end face is in sealing connection with the cathode through the sealing groove and the sealing element. The cathode material can be simply and quickly fixed, can be repeatedly used, and has durability in sealing.
Description
Technical Field
The invention relates to the technical field, in particular to a metal air fuel cell with a self-sealing cathode easy to fix.
Background
Under the double crisis of increasing energy crisis and environmental pollution, the search for new energy to replace the traditional fossil energy is urgent. Under such circumstances, various new energy technologies have been rapidly developed, and chemical energy has received great attention. In the conventional chemical battery, although the lithium ion battery has the advantages of high voltage, high power density and the like, the lithium ion battery is difficult to meet the use requirements in various scenes due to high cost, poor safety and low energy density. The hydrogen-oxygen fuel cell has excellent performance and environmental friendliness, and a large amount of hydroxide exists in the nature, and raw materials are easily obtained. However, hydrogen storage is difficult, and the global storage of platinum as a catalyst is extremely low, so that such batteries are costly. The non-polymer lithium ion battery is used as a power battery widely applied to hybrid/pure electric vehicles at present, and has the advantages of high power density, long cycle life and the like. However, lithium ion batteries also have disadvantages: firstly, the energy density is low, and when the energy density is used as a power battery, the endurance mileage of the electric vehicle is short, and the daily life requirements cannot be met; secondly, the requirement on the use environment is high, the charging can not be carried out below 0 ℃, and the operation can not be carried out below-10 ℃. The effect of using the lithium ion battery in winter is extremely poor in northern areas with higher latitudes, so that the use scene is greatly limited; thirdly, the safety is poor, and under the condition of high temperature and sunshine, the possibility of spontaneous combustion and even explosion exists. In addition, lithium ion batteries are costly and not easily recyclable. The metal air fuel cell has high energy density, strong environmental adaptability, good use safety and environment-friendly product, and is a potential development direction of power cells.
The metal-air battery takes active metal as an anode and oxygen in the air as a cathode, and generates electric energy through the reaction of a primary battery, and the product is metal salt or hydroxide. Active metals mainly used at present include: magnesium, aluminum and zinc. Depending on the electrolyte used, there are acid electrolyte batteries, alkaline electrolyte batteries and neutral electrolyte batteries, in which only acid or alkaline electrolytes can be used for aluminum and zinc. Because of the strong metal activity of magnesium, a neutral salt solution (such as a NaCl solution) can be used as the electrolyte. The metal-air battery releases energy by metal oxidation using chemical energy stored by the active metal. The metal electrode can be worn gradually in the use process, and after the loss is almost finished, the battery can be continuously used as long as the metal electrode of the battery is replaced, and grid-connected charging is not needed. Meanwhile, the metal air fuel cell is convenient to transport and store, and is a potential new energy technology. The metal air fuel cell relies on the electrolyte to carry out electron transfer between electrodes, and during the use process, the temperature of the electrolyte rises and a small amount of hydrogen evolution reaction occurs, which puts requirements on the sealing performance of the cell. The cathode is attached to the battery case during the manufacturing process, which requires both good sealing and long-term durability, and thus the manner of fixing the cathode to the battery case is important. The traditional metal air fuel cell mostly adopts a gluing or bolt connection pressing mode to fix the cathode of the cell and the cell shell. The gluing process is complex, the waiting time for the sealant to play a role is long, and the labor cost and the time cost for manufacturing the battery are increased. And with the increase of the service time of the battery, the problems of aging, deformation and the like of the sealant can occur, so that the sealing performance of the fuel battery is reduced, the liquid leakage phenomenon occurs, and the use of the battery is influenced. The bolt connection mode is too tedious, the labor cost is high, the manufacturing cost of the battery is increased, and the batch production of the battery is seriously influenced.
Disclosure of Invention
The invention aims to provide a metal-air battery cell with a cathode which is easy to fix and reliable in sealing.
In order to achieve the purpose, the invention provides the following scheme:
a self-sealing cathode highly immobilized metal-air fuel cell comprising: the battery comprises a battery shell, a metal anode assembly, a cathode pressing plate, an anode leading-out piece and a cathode leading-out piece; wherein,
the battery shell comprises two opposite open end faces, a first sealing groove is formed in a frame of each open end face, a cathode holding structure is arranged in each open end face, and a first sealing element is arranged in each first sealing groove; an anode through groove is formed in any end face of the battery shell except the two open end faces; the battery shell is also provided with a buckle, a liquid inlet and a liquid outlet; the cathode holding structure holds the shape of the cathode;
the metal anode assembly comprises a metal anode and an anode base, the metal anode is inserted into the battery shell through the anode through groove, and the anode base is fixed on the end face of the battery shell;
the cathode pressing plate covers the open end face, is of a frame structure and comprises an outer frame and a support frame on the inner side of the outer frame, a second sealing groove is formed in the outer frame, the support frame is used for maintaining the shape of the cathode, and a second sealing element is arranged in the second sealing groove;
the cathode is clamped between the first sealing element and the second sealing element and is clamped by the buckle;
one end of the anode leading-out piece is connected with the metal anode, and the other end of the anode leading-out piece extends out of the battery shell to form a cathode of the metal air fuel battery;
the cathode lead-out piece is connected with the part of the cathode exposed to the air at one end, and the other end of the cathode lead-out piece forms the anode of the metal air fuel cell;
the metal anode is positioned between the two cathodes, and the open end face is in sealing connection with the cathodes through the first sealing groove, the second sealing groove, the first sealing element and the second sealing element.
Optionally, the cathode holding structure is a grid structure.
Optionally, the supporting frame is of a grid structure.
Optionally, the anode lead-out part is a binding post arranged on the anode base.
Optionally, the cathode lead-out member comprises a U-shaped conductive strip and a lead, the U-shaped conductive strip comprising a neck and a pair of opposed and spaced apart legs extending from the neck, the two legs being welded to portions of the two cathodes that are exposed to air, respectively, and the neck being welded to the lead.
Optionally, the first sealing element and the second sealing element are sealing strips.
Optionally, the battery case is a rectangular case.
Optionally, the anode through groove is formed in the upper end surface of the battery case.
Optionally, the front end face and the rear end face of the battery case are the open end faces.
Optionally, the liquid outlet is arranged above the left end face of the battery shell, and the liquid inlet is arranged below the right end face of the battery shell.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the metal air fuel cell with the self-sealing cathode easy to fix provided by the invention adopts a structure of a buckle and a double-layer sealing ring, and the cathode is pressed by using the cathode pressing plate and the cell shell, so that the fixing and sealing effects are achieved. The problem of current air metal fuel cell monomer assembly complicacy, the sealed durability of negative pole department is poor is solved, make the free cathode material of battery can be more simply and easily, fix fast, and self-sealing structure has promoted the sealed durability at negative pole department, simultaneously because do not harm the cathode material in the assembling process, make the cathode material can repetitious usage, simplified the free assembling process of battery greatly, reduced manual work and manufacturing cost, promoted production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a self-sealing cathode very easily fixable metal-air fuel cell according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a metal anode according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a cathode pressing plate according to an embodiment of the present invention;
fig. 4 is an exploded view of a self-sealing cathode highly-affixed metal-air fuel cell in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The present embodiment provides a metal-air fuel cell that is easily fixed from a sealing cathode, including: the battery comprises a battery shell, a metal anode assembly, a cathode pressing plate, an anode leading-out piece and a cathode leading-out piece. In this embodiment, the battery case is a rectangular case, but in other embodiments, the battery case may be a case with other shapes. Referring to fig. 1, the battery case 16 includes two opposite open end faces, a first sealing groove 8 is formed in a frame of the open end face, a first sealing member is disposed in the first sealing groove 8, and a cathode holding structure 7 is disposed inside the open end face, where the cathode holding structure 7 is preferably a grid structure for holding a shape of a cathode material and preventing the cathode from sinking inwards during operation of the battery. The battery case 16 is provided with an anode through groove 4 on any end surface except for the two open end surfaces, the anode through groove 4 is provided on the upper end surface of the battery case 16 in this embodiment, and the anode through groove may be provided on other end surfaces in other embodiments. Referring to fig. 2, the metal anode assembly 15 includes a metal anode 11 and an anode base 12, the metal anode 11 is inserted into the battery case 16 through the anode through-groove 4, the metal anode 11 is located between two cathodes 17, and the anode base 12 is fixed to an end surface of the battery case 16. Referring to fig. 3, the cathode pressing plates 18 are located at two sides of the battery case 16 and cover the open end faces, the cathode pressing plates 18 are of a frame structure, the frame structure includes an outer frame and a support frame inside the outer frame, a second sealing groove 9 is arranged in the outer frame, a second sealing element is arranged in the second sealing groove 9, and the support frame 10 is used for maintaining the shape of the cathode, and is preferably of a grid structure. The battery shell 16 is also provided with a buckle 6, the cathode 17 is clamped between the first sealing element and the second sealing element, and the cathode pressing plate 18 is clamped through the buckle 6, so that the cathode 17 is clamped, and the cathode is fixed on the battery shell 16. The first sealing element and the second sealing element can be sealing strips, and the open end faces are connected with the cathode 17 in a sealing mode through the first sealing groove 8, the second sealing groove 9, the first sealing element and the second sealing element. The anode lead-out member has one end connected to the metal anode 11 and the other end extending out of the cell case 16 to form the cathode of the metal-air fuel cell. The cathode lead-out member has one end connected to a portion of the cathode 17 exposed to the air and the other end forming an anode of the metal-air fuel cell.
The metal anode 11 is used for battery reaction and energy release, and in the embodiment, two through holes are symmetrically arranged on the anode base 12 and are used for matching with the first bolt holes 3 on the battery shell 16, and the anode base 12 is fixedly connected on the battery shell 16 through bolts. The buckles 6 are used for matching with the cathode pressing plate 18 to play a role of clamping the cathode 17, in practical application, 2-8 buckles can be arranged on the long side and 2-6 buckles can be arranged on the short side, the arrangement forms can be mutually independent, can also be the forms of buckles on the same side or all buckles connected together, and can also be a built-in distribution/continuous buckle form, and only one quantity scheme and arrangement form is shown in fig. 1.
As an implementation manner of this embodiment, the through groove 4 of the anode is opened in the upper end surface of the battery casing 16, the front end surface and the rear end surface of the battery casing 16 are the open end surface, the liquid outlet 5 is opened above the left end surface of the battery casing 16, the liquid inlet 1 is opened below the right end surface of the battery casing 16, and the liquid inlet 1 and the liquid outlet 5 cooperate to complete the circulation of the electrolyte.
As an embodiment of the present embodiment, the anode lead-out member is a terminal disposed on the anode base 12, and the terminal is used for connecting a lead.
As an embodiment of this embodiment, the cathode lead-out member includes a U-shaped conductive sheet 14 and a lead, the U-shaped conductive sheet 14 includes a neck portion and a pair of opposing and spaced apart legs extending from the neck portion, the two legs are respectively ultrasonically welded to portions of the two cathodes 17 exposed to the air, and the neck portion is welded to the lead to form the positive electrode of the battery.
As an implementation manner of the embodiment, a side surface second bolt hole 2 is arranged above the liquid inlet 1 and is used for matching with a through hole on the U-shaped conducting strip 14 and fixing the U-shaped conducting strip 14 through bolt connection.
As shown in fig. 4, the top surface of the battery case 16 is connected to the metal anode assembly 15 through the first bolt hole 3, the metal anode 11 is placed through the anode through groove 4, and the terminal 13 of the metal anode assembly 15 is used for connecting a lead wire to form the negative electrode of the battery. Cathode 17 is located between battery housing 16 and the cathode clamp plate 18, and battery housing 16 plays the chucking effect through buckle 6 and cathode clamp plate 18's cooperation, and the sealing member has all been placed to first seal groove 8 and second seal groove 9 simultaneously, relies on double-deck sealing member and buckle to compress tightly cathode 17, guarantees sealed effect. The upper part of one side wall of the battery shell 16 is connected with the U-shaped conducting strip 14 through the second bolt hole 2, two side surfaces of the U-shaped conducting strip 14 are respectively welded on two cathodes 17 of the battery, and a lead is welded on the end surface to form the anode of the battery. Two side surfaces of the battery shell 16 are respectively provided with a liquid inlet 1 and a liquid outlet 5 for circulating the electrolyte and discharging the electrochemical reaction precipitate when the battery works.
When the shell is filled with electrolyte, the electrolyte can generate pressure action on the sealing end face, and the pressure is called as end face liquid film pressure:
FL＝PL×A
FL-end face liquid film pressure, N;
PLof the electrolyte against the sealing end faceAverage pressure, Pa;
a-actual contact area of electrolyte with sealing end face, m2；
Elastic force:
FS＝KS×Δx
FSthe pressure transmitted by the elastic element to the sealing end face, N;
KS-stiffness of the elastic element, N/mm;
Δ x — elastic element deformation, mm;
net closing force to which the end faces are subjected:
FC＝FS-FL
this can be used to derive the end face specific pressure:
wherein, Δ x, A, PLHas been determined according to the design size and electrolyte properties, so K can be adjusted by selecting the elastic elementSThereby obtaining proper end face specific pressure to meet the use requirement.
The metal air fuel cell monomer with the easily fixed cathode provided by the invention has the advantages that the assembly efficiency of the metal air fuel cell is improved, the cost is reduced, the service durability of the cell is improved, and meanwhile, the cathode material is not damaged in the assembly process, and can be reused if the cell shell is accidentally damaged.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A self-sealing cathode extremely easily fixable metal air fuel cell comprising: the battery comprises a battery shell, a metal anode assembly, a cathode pressing plate, an anode leading-out piece and a cathode leading-out piece; wherein,
the battery shell comprises two opposite open end faces, a first sealing groove is formed in a frame of each open end face, a cathode holding structure is arranged in each open end face, and a first sealing element is arranged in each first sealing groove; an anode through groove is formed in any end face of the battery shell except the two open end faces; the battery shell is also provided with a buckle, a liquid inlet and a liquid outlet; the cathode holding structure holds the shape of the cathode;
the metal anode assembly comprises a metal anode and an anode base, the metal anode is inserted into the battery shell through the anode through groove, and the anode base is fixed on the end face of the battery shell;
the cathode pressing plate covers the open end face, is of a frame structure and comprises an outer frame and a support frame on the inner side of the outer frame, a second sealing groove is formed in the outer frame, the support frame is used for maintaining the shape of the cathode, and a second sealing element is arranged in the second sealing groove;
the cathode is clamped between the first sealing element and the second sealing element and is clamped by the buckle;
one end of the anode leading-out piece is connected with the metal anode, and the other end of the anode leading-out piece extends out of the battery shell to form a cathode of the metal air fuel battery;
the cathode lead-out piece is connected with the part of the cathode exposed to the air at one end, and the other end of the cathode lead-out piece forms the anode of the metal air fuel cell;
the metal anode is positioned between the two cathodes, and the open end face is in sealing connection with the cathodes through the first sealing groove, the second sealing groove, the first sealing element and the second sealing element.
2. The self-sealing cathode highly fixable metal-air fuel cell according to claim 1, characterised in that said cathode holding structure is a grid structure.
3. The self-sealing cathode highly fixable metal-air fuel cell according to claim 1 or 2, wherein said support frame is of a grid structure.
4. The self-sealing cathode highly fixable metal air fuel cell according to claim 1, characterised in that said anode lead-out is a terminal provided on said anode mount.
5. The self-sealing cathode highly conformable metal-air fuel cell of claim 1, wherein said cathode lead-out comprises a U-shaped conductive tab and a lead, said U-shaped conductive tab comprising a neck and an opposing and spaced pair of legs extending from said neck, both of said legs being welded to portions of both of said cathodes exposed to air, respectively, said neck being welded to said lead.
6. The self-sealing cathode highly conformable metal-air fuel cell of claim 1, wherein said first seal and said second seal are sealing strips.
7. The self-sealing cathode highly fixable metal-air fuel cell of claim 1, wherein said cell housing is a rectangular housing.
8. The self-sealing cathode highly fixable metal-air fuel cell according to claim 7, wherein said anode through slot opens at an upper end face of said cell housing.
9. The self-sealing cathode highly fixable metal air fuel cell of claim 7, wherein the front and rear end faces of said cell housing are said open end faces.
10. The self-sealing cathode extremely fixable metal-air fuel cell as recited in claim 7, wherein said liquid outlet is open above a left end surface of said cell housing and said liquid inlet is open below a right end surface of said cell housing.
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| CN202011252589.6A CN112382775B (en) | 2020-11-11 | 2020-11-11 | Self-sealing metal-air fuel cell with easily fixable cathode |
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| CN202011252589.6A CN112382775B (en) | 2020-11-11 | 2020-11-11 | Self-sealing metal-air fuel cell with easily fixable cathode |
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| CN112382775B CN112382775B (en) | 2022-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022188908A1 (en) * | 2021-03-09 | 2022-09-15 | Schaeffler Technologies AG & Co. KG | Electrode module for a redox flow cell, method for assembling same, and redox flow cell |
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| CN112382775B (en) | 2022-06-07 |
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