CN115948756A - Flat plate type solid oxide electrolytic cell sealing assembly and application thereof - Google Patents
Flat plate type solid oxide electrolytic cell sealing assembly and application thereof Download PDFInfo
- Publication number
- CN115948756A CN115948756A CN202211711248.XA CN202211711248A CN115948756A CN 115948756 A CN115948756 A CN 115948756A CN 202211711248 A CN202211711248 A CN 202211711248A CN 115948756 A CN115948756 A CN 115948756A
- Authority
- CN
- China
- Prior art keywords
- sealing
- electrolytic
- cell
- single cell
- solid oxide
- Prior art date
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 183
- 239000007787 solid Substances 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 13
- 238000005868 electrolysis reaction Methods 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 239000002241 glass-ceramic Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000007581 slurry coating method Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to the technical field of solid oxide electrolytic cells, in particular to a flat plate type solid oxide electrolytic cell sealing assembly and application thereof. The sealing assembly comprises a first sealing part, a second sealing part, an electrolytic single cell and a metal bipolar plate, wherein the peripheral edge of the electrolytic single cell encloses the first sealing part to form the electrolytic single cell with a sealing frame; the second sealing part and the electrolytic single cell with the sealing frame are arranged on the metal bipolar plate, the second sealing part is positioned on the outer side of the electrolytic single cell with the sealing frame to form a stack assembly repeating unit, and the second sealing part is used for sealing between the two groups of stacked stack assembly repeating units. The method can form effective sealing simultaneously after the temperature rise of the electric pile is assembled, avoids the problem of connector oxidation caused by the pre-sealing of the electrolytic single cell and the connector, and is simple, feasible, flexible and efficient.
Description
Technical Field
The invention relates to the technical field of solid oxide electrolytic cells, in particular to a flat plate type solid oxide electrolytic cell sealing assembly and application thereof.
Background
A Solid Oxide Electrolysis Cell (SOEC) is an energy conversion device for converting electric energy into chemical energy, and has the outstanding advantages of cleanness, high efficiency and the like. The development of the technology for efficiently preparing the green hydrogen by the SOEC is an effective way for achieving the goals of 'carbon peak reaching' and 'carbon neutralization'. Although great progress has been made in materials, components, and integration technologies in recent years, the development and application of sealing materials and sealing technologies is limited by the high temperature (600-1000 ℃) and high humidity (AR > 80%) working environment of SOEC.
Glass and glass-ceramics are currently the most widely studied and used sealing materials. Glass at a temperature above the softening temperature (T) s ) The mixture is softened and flows to realize the infiltration of the sealing part and is cooled to T s Curing occurs below to effect sealing. Compared with other forms of sealing materials such as flexible metal, mica substrate, metal brazing and the like, the glass has the remarkable advantages of good high-temperature sealing performance, adjustable coefficient of expansion (CTE), convenient preparation and use and the like. Two types of sealing are currently used: one is that during the assembly of the battery, the sealing slurry is directly coated on the part of the metal bipolar plate to be sealed, the electrolytic cells are placed, and then the layers are superposed layer by layer. The sealing scheme is simple and feasible, but in the implementation process, the electrolytic single cell is placed on the flowing sealing slurry, so that the accurate positioning is difficult, and the problems of dislocation, displacement and the like can be caused after pressurization; in addition, excessive flow of slurry may block the water vapor access passage, resulting in uneven water vapor distribution. The other sealing mode is that before the electric pile is assembled, the electrolytic single cell is sealed on the cell frame in advance by using glass sealant, and when the electric pile is assembled, the cell frame and the metal bipolar plate are sealed. The sealing scheme adopts glass for pre-sealing, and stress concentration is easily generated at the edge of the electrolytic single cell in the later-stage stack assembly pressurizing process, so that the single cell is damaged; in addition, the use of the cell frame increases the sealing surface, thereby increasing the gas leakage path. Therefore, on the premise of overcoming the excessive flow of the glass slurry during use and avoiding stress concentration caused by pre-sealing, the sealing method which is simple to operate and reliable in performance is sought by making full use of the good sealing characteristics of the glass, and thus the problem to be solved by the technical personnel in the field is urgently needed.
Disclosure of Invention
In view of the above problems, the present invention provides a flat plate type solid oxide electrolytic cell sealing assembly and its application to improve the sealing performance of the electrolytic cell.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a flat plate type solid oxide electrolytic cell sealing assembly, which comprises a first sealing part, a second sealing part, an electrolytic single cell and a metal bipolar plate, wherein the first sealing part is encapsulated at the peripheral edge of the electrolytic single cell to form the electrolytic single cell with a sealing frame;
the second sealing part and the electrolytic single cell with the sealing frame are arranged on the metal bipolar plate, the second sealing part is positioned on the outer side of the electrolytic single cell with the sealing frame to form a pile assembly repeating unit, and the second sealing part is used for sealing between the two groups of pile assembly repeating units which are overlapped.
The first sealing part is of a multilayer structure and is sealed at the upper edge, the side edge and the lower edge of the electrolytic single cell in an adhering mode.
The base material of the first seal member is a glass fiber mat.
The first sealing member further contains glass powder or ceramic powder in the base material.
The electrolytic single cell consists of a first electrode, an electrolyte and a second electrode; wherein the first electrode is exposed to an inner side of the first sealing part.
And the upper side and the lower side of the metal bipolar plate are respectively provided with a sealing groove, a limiting step and a gas flow channel, the limiting step is used for limiting the electrolytic single cell with the sealing frame, and the sealing groove is positioned on the outer side of the limiting step and used for fixing the second sealing part.
The second sealing member has a shape and size adapted to the metal bipolar plate, and has openings corresponding to the gas passages of the electrolytic cell and the common gas passage area.
The material of the second sealing part adopts any one of glass, glass-ceramic and mica, and the structure form can be any one of felt, gasket and slurry coating.
Use of a flat solid oxide electrolysis cell seal assembly as described above, comprising the steps of:
the method comprises the following steps that firstly, a first sealing part is adhered to the upper edge, the lower edge and the side edges of an electrolytic single cell through adhesives to form the electrolytic single cell with a sealed frame;
step two, sequentially stacking a lower end plate, a lower insulating plate, a lower current collecting plate, a metal bipolar plate, an electrolytic single cell with a sealing frame, a second sealing part, the metal bipolar plate, the electrolytic single cell with the sealing frame, the second sealing part \8230 \ 8230, an upper current collecting plate, an upper insulating plate and an upper end plate;
thirdly, applying pressing force on the upper end plate and the lower end plate, and sequentially penetrating the superposed parts through a screw rod for fixing;
and fourthly, placing the sealed electrolytic cell in a high-temperature furnace, raising the temperature to be higher than the glass softening temperature of the first sealing part, and sealing the electrolytic cell stack.
The glass softening temperature of the first sealing part is 30-50 ℃ higher than the working temperature of the electrolytic cell stack.
The invention has the advantages and beneficial effects that:
1. before the electric pile is assembled, the first sealing component is adhered to the periphery of the electrolytic single cell to form the electrolytic single cell with the sealing frame, and in the process of assembling the electric pile, the electrolytic single cell with the sealing frame is arranged in a corresponding area on the bipolar plate, and the position of the electrolytic single cell is limited by the step. After the electric pile is assembled, the temperature is raised to be higher than the softening temperature of the sealing part, and then softening and sealing can be realized. Because the base material of the first sealing part is glass, the sealing mode can utilize the excellent sealing performance of the glass, and simultaneously avoid excessive flowing of glass slurry in the using process and stress concentration in the pre-sealing process.
2. The first sealing part and the second sealing part are respectively used for sealing between the single cell and the connecting body and between the connecting body and the connecting body, and the design can be respectively carried out according to actual requirements. Meanwhile, effective sealing can be formed between the single cell and the connector and between the connector and the connector after the temperature of the galvanic pile is increased, and the problem of connector oxidation caused by pre-sealing of the single cell and the connector is avoided. The method is simple, feasible, flexible and efficient.
Drawings
FIG. 1 is a schematic view showing the structure of a flat plate type solid oxide electrolytic cell sealing member in example 1 of the present invention;
FIG. 2 is a schematic view showing the structure of an electrolytic cell with a sealed frame in example 1 of the present invention;
FIG. 3 is a schematic structural view of a second seal member in embodiment 1 of the invention;
FIG. 4 is a schematic diagram showing the assembly of a cell stack in example 1 of the present invention;
FIG. 5 is a schematic view showing the structure of an electrolytic cell with a sealed frame in example 2 of the present invention;
FIG. 6 is a schematic view showing the assembly of the first sealing member with the electrolytic cell in example 2 of the present invention;
FIG. 7 is a schematic structural view of a second seal member in embodiment 2 of the invention;
FIG. 8 is a schematic view showing the structure of an electrolytic cell with a sealed frame in example 3 of the present invention;
in the figure: 1-an electrolytic single cell, 2-a first electrode, 3-an electrolyte, 4-a second electrode, 5-a first sealing part, 5 (a) -an upper layer seal, 5 (b) -a middle layer seal, 5 (c) -a lower layer seal, 6-a first metal bipolar plate, 7-a second metal bipolar plate, 8-a gas flow channel, 9-a limiting step, 10-a lower end plate, 11-a lower insulating plate, 12-a lower current collecting plate, 13-an electrolytic single cell with a sealing frame, 14-a second sealing part, 15-a stack assembly repeating unit, 16-an upper current collecting plate, 17-an upper insulating plate and 18-an upper end plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, the flat plate type solid oxide electrolytic cell sealing assembly provided by the invention comprises a first sealing part 5, a second sealing part 14, an electrolytic single cell 1 and a metal bipolar plate, wherein the peripheral edge of the electrolytic single cell 1 encloses the first sealing part 5 to form an electrolytic single cell 13 with a sealing frame; the second sealing part 14 and the electrolysis single cell 13 with the sealing frame are arranged on the metal bipolar plate, the second sealing part 14 is positioned at the outer side of the electrolysis single cell 13 with the sealing frame to form a stack assembly repeating unit 15, and the second sealing part 14 is used for sealing between two groups of stack assembly repeating units 15 which are stacked.
In the embodiment of the present invention, as shown in fig. 2, the first sealing member 5 is a multi-layer structure, and the multi-layer structure is adhered to the upper edge, the side edge and the lower edge of the cell 1 by adhesion to form the cell 13 with a sealed frame.
Specifically, the base material of the first sealing member 5 is a glass fiber mat, is located at the periphery of the electrolytic cell 1, and is pre-adhered to the upper edge, the lower edge and the side edges of the electrolytic cell 1 in a laminating manner before the stack is assembled, so as to form the electrolytic cell 13 with a sealing frame.
Further, the base material of the first sealing member 5 contains glass powder or ceramic powder. The glass softening temperature of the first sealing member 5 is 30-50 ℃ higher than the operating temperature of the electrolytic cell stack.
In the embodiment of the invention, the electrolytic cell 1 is composed of a first electrode 2, an electrolyte 3 and a second electrode 4; wherein the first electrode 2 is exposed to the inside of the first sealing member 5. Specifically, the first sealing member 5 is provided with an opening that fits the area of the electrode of the electrolytic cell, the size of the opening being larger than the size of the first electrode 2 and smaller than the size of the electrolyte 3.
In the embodiment of the invention, as shown in fig. 1, the upper and lower sides of the metal bipolar plate are provided with a sealing groove, a limiting step 9 and a gas flow channel 8, the limiting step 9 is used for limiting an electrolysis unit cell 13 with a sealed frame, and the sealing groove is located at the outer side of the limiting step 9 and is used for fixing a second sealing part 14.
Specifically, the second seal member 14 is located between the first metallic bipolar plate 6 and the second metallic bipolar plate 7. In the embodiment of the present invention, as shown in fig. 3, the second sealing member 14 has a shape and a size corresponding to the metal bipolar plate, and the second sealing member 14 further has openings corresponding to the gas passages of the electrolytic cell 1 and the common gas passage area.
Specifically, the material of the second sealing member 14 is any one of glass, glass-ceramic, and mica, and the structure form may be any one of felt, gasket, and slurry coating.
In the invention, before the electric pile is assembled, a first sealing component 5 is adhered to the periphery of an electrolytic single cell 1 to form an electrolytic single cell 13 with a sealing frame. In the process of assembling the galvanic pile, the electrolytic single cell 13 with the sealing frame is arranged in the corresponding area on the metal bipolar plate, and the position of the electrolytic single cell 13 with the sealing frame is limited by the limiting step 9. After the electric pile is assembled, the temperature is increased to be higher than the softening temperature of the first sealing part 5, and then softening and sealing can be achieved. Because the base material of the first sealing part 5 is glass, the sealing mode can utilize the excellent sealing performance of the glass, and simultaneously avoid excessive flowing of glass slurry in the using process and stress concentration in the pre-sealing process.
Based on the above design concept, another embodiment of the present invention provides an application of the flat plate type solid oxide electrolytic cell sealing assembly as described above, as shown in fig. 4, the application comprises the following steps:
firstly, a first sealing part 5 is adhered to the upper edge, the lower edge and the side edge of an electrolytic single cell 1 through adhesives to form an electrolytic single cell 13 with a sealing frame;
step two, sequentially laminating a lower end plate 10, a lower insulating plate 11, a lower current collecting plate 12, a metal bipolar plate, an electrolytic single cell 13 with a sealing frame, a second sealing part 14, the metal bipolar plate, the electrolytic single cell 13 with the sealing frame, the second sealing part 14 \8230 \ 8230, an upper current collecting plate 16, an upper insulating plate 17 and an upper end plate 18;
thirdly, applying pressing force on the upper end plate 18 and the lower end plate 10, and sequentially penetrating the superposed parts by using screws for fixing;
and step four, placing the sealed electrolytic cell in a high-temperature furnace, raising the temperature to be higher than the glass softening temperature of the first sealing part 5, and sealing the electrolytic cell stack.
Preferably, the glass softening temperature of the first sealing member 5 is 30-50 ℃ higher than the operating temperature of the electrolytic cell stack.
In another embodiment of the invention, the sealing components of the flat-plate solid oxide electrolytic cell are respectively sealed between the single electrolytic cell and the connector and between the connector and the connector by the first sealing component and the second sealing component, and can be respectively designed according to actual needs. Meanwhile, effective sealing can be formed between the electrolytic single cell and the connector and between the connector and the connector after the temperature of the galvanic pile is increased, and the problem of connector oxidation caused by the pre-sealing of the electrolytic single cell and the connector is avoided. The method is simple, feasible, flexible and efficient.
Example 1
As shown in figures 1-4, the invention provides a flat plate type solid oxide electrolytic cell sealing assembly, a first sealing part 5, a second sealing part 14, an electrolytic cell 1 and a metal bipolar plate, wherein the electrolytic cell is flat plate type, and the first sealing part 5 is used for sealing the flat plate type electrolytic cell 1. The electrolytic cell 1 is composed of a first electrode 2, an electrolyte 3, and a second electrode 4. The first sealing member 5 includes an upper layer seal 5 (a), a middle layer seal 5 (b), and a lower layer seal 5 (c), and is composed of three layers, wherein the base material is a glass fiber mat, and the glass fiber mat is adhered to the upper edge, the side edge, and the lower edge of the electrolytic cell 1 in a laminating manner to form an electrolytic cell 13 with a sealed frame. The first sealing part 5 is provided with an opening which is matched with the electrode area of the electrolytic single cell, and the size of the opening is larger than that of the first electrode 2 and smaller than that of the electrolyte 3. As shown in fig. 3 and 4, the second sealing member 14 is made of mica mat, is positioned between the first metal bipolar plate 6 and the second metal bipolar plate 7, is matched with the metal bipolar plates in shape and size, and is provided with openings corresponding to the electrolytic cell area and the common gas duct area.
The application of a flat plate type solid oxide electrolytic cell sealing assembly comprises the following steps:
firstly, an upper layer seal 5 (a), a middle layer seal 5 (b) and a lower layer seal 5 (c) of a first sealing component 5 are respectively stuck on the upper edge, the side edge and the lower edge of an electrolysis unit cell 1 through adhesives to form an electrolysis unit cell 13 with a sealed frame;
step two, sequentially stacking a lower end plate 10, a lower insulating plate 11, a lower current collecting plate 12, a metal bipolar plate 7, an electrolytic single cell 13 with a sealing frame, a second sealing part 14, a metal bipolar plate 7 \8230 \ 8230, an upper current collecting plate 16, an upper insulating plate 17 and an upper end plate 18;
thirdly, applying pressing force on the upper end plate 18 and the lower end plate 10, and fixing the pressing force by penetrating through a screw;
and step four, placing the sealed electrolytic cell in a high-temperature furnace, raising the temperature to be higher than the glass softening temperature of the first sealing part 5, and sealing the electrolytic cell stack.
Wherein, the first metal bipolar plate 6 and the second metal bipolar plate 7 are provided with a limit step 9 corresponding to the first sealing part 5, and the limit step 9 is matched with an electrolytic single cell 13 with a sealing frame for use; the size of the lower edge of the limiting step 9 is larger than the size of the first electrode 2 and smaller than the size of the electrolyte 3. The metal bipolar plate is also provided with a sealing groove which is matched with the second sealing component 14 for use. The first metal bipolar plate 6 and the second metal bipolar plate 7 are sealed by a second sealing member 14.
Example 2
Unlike embodiment 1, the first seal member 5 in this embodiment is composed of two layers of an upper seal 5 (a) and a lower seal 5 (b), as shown in fig. 5 and 6. The upper layer seal 5 (a) and the lower layer seal 5 (b) are symmetrically arranged, and the cross section is L-shaped. In addition, in this embodiment, the second sealing member 14 is also made of glass fiber mat, and is shaped and dimensioned to fit the metal bipolar plate, and is provided with openings corresponding to the cell area and the common gas duct area, as shown in fig. 7.
Example 3
Unlike embodiment 1, the first seal member 5 in this embodiment is composed of two layers of an upper seal 5 (a) and a lower seal 5 (b), as shown in fig. 8. Specifically, the upper seal 5 (a) is of a flat plate structure, and the lower seal 5 (b) is of an L-shaped structure in cross section. The first sealing member 5 contains glass powder in addition to the glass fiber mat base material.
The flat plate type solid oxide electrolytic cell sealing assembly and the application thereof provided by the invention can utilize the excellent sealing performance of glass, simultaneously avoid excessive flowing of glass slurry in the using process and stress concentration in the pre-sealing process, and simultaneously avoid the problem of connector oxidation caused by pre-sealing of an electrolytic single cell and a connector.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (10)
1. A flat plate type solid oxide electrolytic cell sealing assembly is characterized by comprising a first sealing part, a second sealing part, an electrolytic single cell and a metal bipolar plate, wherein the first sealing part is wrapped at the peripheral edge of the electrolytic single cell to form the electrolytic single cell with a sealing frame;
the second sealing part and the electrolytic single cell with the sealing frame are arranged on the metal bipolar plate, the second sealing part is positioned on the outer side of the electrolytic single cell with the sealing frame to form a stack assembly repeating unit, and the second sealing part is used for sealing between the two groups of stacked stack assembly repeating units.
2. The flat plate type solid oxide electrolytic cell seal assembly according to claim 1, wherein the first sealing member is a multi-layer structure and is enclosed at upper, side and lower edges of the electrolytic cell by means of adhesion.
3. The flat solid oxide cell seal assembly according to claim 2, wherein the substrate of the first seal member is a glass fiber mat.
4. The flat plate type solid oxide electrolytic cell seal assembly according to claim 3, wherein the base material of the first sealing member further contains glass powder or ceramic powder therein.
5. The flat solid oxide electrolysis cell seal assembly according to claim 1, wherein the electrolysis cell is comprised of a first electrode, an electrolyte and a second electrode; wherein the first electrode is exposed to an inner side of the first sealing member.
6. The flat plate type solid oxide electrolytic cell sealing assembly according to claim 1, wherein the metal bipolar plate is provided at upper and lower sides thereof with a sealing groove, a limiting step and a gas flow passage, the limiting step is used for limiting the sealed frame-equipped electrolytic cell, and the sealing groove is located at an outer side of the limiting step and is used for fixing the second sealing member.
7. The flat plate type solid oxide electrolytic cell seal assembly according to claim 1, wherein the second seal member has a shape and size adapted to the metal bipolar plate, and the second seal member further has openings corresponding to gas passages and common gas passage areas of the electrolytic cell.
8. The flat plate type solid oxide electrolytic cell sealing assembly according to claim 6, wherein the material of the second sealing member is any one of glass, glass-ceramic and mica, and the structure form can be any one of felt, gasket and slurry coating.
9. Use of a flat solid oxide cell seal assembly according to any of claims 1 to 8, characterized in that the use comprises the steps of:
step one, adhering the first sealing part to the upper edge, the lower edge and the side edge of the electrolytic single cell through an adhesive to form the electrolytic single cell with a sealed frame;
step two, sequentially stacking a lower end plate, a lower insulating plate, a lower current collecting plate, a metal bipolar plate, an electrolytic single cell with a sealing frame, a second sealing part, the metal bipolar plate, the electrolytic single cell with the sealing frame, the second sealing part \8230 \ 8230, an upper current collecting plate, an upper insulating plate and an upper end plate;
thirdly, applying pressing force on the upper end plate and the lower end plate, and sequentially penetrating the superposed parts through a screw to fix;
and fourthly, placing the sealed electrolytic cell in a high-temperature furnace, raising the temperature to be higher than the glass softening temperature of the first sealing part, and sealing the electrolytic cell stack.
10. Use of a flat solid oxide cell seal assembly according to claim 9, wherein the glass softening temperature of the first sealing part is 30-50 ℃ higher than the operating temperature of the cell stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211711248.XA CN115948756A (en) | 2022-12-29 | 2022-12-29 | Flat plate type solid oxide electrolytic cell sealing assembly and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211711248.XA CN115948756A (en) | 2022-12-29 | 2022-12-29 | Flat plate type solid oxide electrolytic cell sealing assembly and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115948756A true CN115948756A (en) | 2023-04-11 |
Family
ID=87287363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211711248.XA Pending CN115948756A (en) | 2022-12-29 | 2022-12-29 | Flat plate type solid oxide electrolytic cell sealing assembly and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115948756A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11111312A (en) * | 1997-09-30 | 1999-04-23 | Sanyo Electric Co Ltd | Solid electrolyte type fuel cell |
| CN1885603A (en) * | 2005-06-20 | 2006-12-27 | 通用电气公司 | Composite sealing structure for SOFC modules and stacks and related method |
| CN1930707A (en) * | 2004-03-22 | 2007-03-14 | 原子能委员会 | Solid electrolyte fuel cell provided with a tight structure |
| CN101019261A (en) * | 2004-09-16 | 2007-08-15 | 日东电工株式会社 | Method and facility for manufacturing fuel cell |
| CN102134726A (en) * | 2011-01-10 | 2011-07-27 | 清华大学 | Flat plate type solid oxide electrolytic cell pile with novel sealed structure |
-
2022
- 2022-12-29 CN CN202211711248.XA patent/CN115948756A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11111312A (en) * | 1997-09-30 | 1999-04-23 | Sanyo Electric Co Ltd | Solid electrolyte type fuel cell |
| CN1930707A (en) * | 2004-03-22 | 2007-03-14 | 原子能委员会 | Solid electrolyte fuel cell provided with a tight structure |
| CN101019261A (en) * | 2004-09-16 | 2007-08-15 | 日东电工株式会社 | Method and facility for manufacturing fuel cell |
| CN1885603A (en) * | 2005-06-20 | 2006-12-27 | 通用电气公司 | Composite sealing structure for SOFC modules and stacks and related method |
| CN102134726A (en) * | 2011-01-10 | 2011-07-27 | 清华大学 | Flat plate type solid oxide electrolytic cell pile with novel sealed structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2260387C (en) | Fuel cell | |
| JP4695576B2 (en) | Durable conductive adhesive bond for fuel cell separator plates | |
| US8067128B2 (en) | Sealing structure of fuel cell and method for manufacturing the same | |
| CN1833331A (en) | Adhesive bonds for metal bipolar plates | |
| CN110752387B (en) | Single cell of proton exchange membrane fuel cell and method for manufacturing electric pile thereof | |
| EP2092588A1 (en) | Bipolar flow field plate assembly and method of making the same | |
| CN111384416A (en) | Fuel cell bipolar plate sealing structure and sealing method | |
| JP2016167454A (en) | Integrated seal for manufacturing fuel cell stack | |
| CN108172859A (en) | A kind of bipolar plates used for high-temperature fuel cell and its manufacturing method | |
| CN111224124A (en) | Fuel cell monomer and preparation method thereof | |
| US20100081026A1 (en) | Cassettes for solid-oxide fuel cell stacks and methods of making the same | |
| CN211556045U (en) | Fuel cell bipolar plate sealing structure | |
| CN115948756A (en) | Flat plate type solid oxide electrolytic cell sealing assembly and application thereof | |
| CN108155397A (en) | A kind of fuel cell pile with whole completely sealed structure and preparation method thereof | |
| CN211125829U (en) | Solid oxide fuel cell stack | |
| CN208173711U (en) | A kind of fuel cell pile with whole completely sealed structure | |
| CN217444439U (en) | Bipolar plate sealing device and battery | |
| CN116014162A (en) | Integrated fuel cell unit and manufacturing method thereof | |
| CN105428672B (en) | A kind of embedded encapsulating method of the special pole plate of high power density pemfc stack | |
| KR101898738B1 (en) | Method for oxide catalyst collector of sofc stack having metal support cell | |
| CN209119223U (en) | A kind of bipolar plates and fuel cell | |
| JP2009510701A (en) | Metal structure for solid oxide fuel cell | |
| KR20190077334A (en) | A hybrid seal, and a planar array comprising at least one high temperature electrochemical cell and a hybrid seal | |
| CN113571724A (en) | Graphite bipolar plate | |
| CN112952137A (en) | Sealing structure of membrane electrode protective film of fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |