CN113224340A - Molten carbonate fuel cell diaphragm and preparation method thereof - Google Patents
Molten carbonate fuel cell diaphragm and preparation method thereof Download PDFInfo
- Publication number
- CN113224340A CN113224340A CN202110476323.8A CN202110476323A CN113224340A CN 113224340 A CN113224340 A CN 113224340A CN 202110476323 A CN202110476323 A CN 202110476323A CN 113224340 A CN113224340 A CN 113224340A
- Authority
- CN
- China
- Prior art keywords
- mcfc
- membrane element
- mcfc membrane
- stack
- membrane
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0223—Composites
- H01M8/0228—Composites in the form of layered or coated products
-
- 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
- H01M8/14—Fuel cells with fused electrolytes
- H01M8/144—Fuel cells with fused electrolytes characterised by the electrolyte material
- H01M8/145—Fuel cells with fused electrolytes characterised by the electrolyte material comprising carbonates
-
- 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
- H01M8/14—Fuel cells with fused electrolytes
- H01M2008/147—Fuel cells with molten carbonates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a molten carbonate fuel cell electrolyte membrane and a preparation method thereof, which comprises the following steps of equally dividing a plurality of MCFC membrane blank into a plurality of groups; cutting a plurality of MCFC membrane element blanks in each group to obtain MCFC membrane element blank sheets with the same size; orderly stacking a plurality of MCFC membrane element blank sheets in each group to obtain an MCFC membrane element blank stack; carrying out hot pressing on each MCFC membrane element blank stack to obtain a formed MCFC membrane element blank stack; orderly stacking a plurality of formed MCFC membrane element embryo stacks to obtain matched MCFC membrane element embryo stacks; the thickness value of each measuring point of the matched MCFC membrane element embryo stack is less than or equal to 0.2 mm; carrying out hot pressing and drying on the matched MCFC membrane element blank stack to obtain an MCFC membrane, wherein the weight loss rate of the MCFC membrane is 1-3%; the invention ensures the flatness and the insulating property of the diaphragm and greatly improves the assembly property and the discharge property of the MCFC battery stack.
Description
Technical Field
The invention belongs to the technical field of power generation, and particularly relates to a molten carbonate fuel cell diaphragm and a preparation method thereof.
Background
The Molten Carbonate Fuel Cell (MCFC) is a high-temperature Fuel Cell working at 650 ℃, has the advantages of no need of noble metal as a catalyst, wide Fuel source, low noise, nearly zero emission of pollutants, high power generation efficiency, realization of combined heat and power supply and the like, is suitable for distributed power stations or fixed power stations of hundreds kilowatt level to megawatt level, and has good development prospect.
The molten carbonate fuel cell operates at 650 ℃, and the structure of the MCFC can be divided into three parts, namely a cathode, an electrolyte and an anode. The electrolyte system of the MCFC is composed of a porous diaphragm carrier and carbonate, the molten carbonate electrolyte completely fills the pores of the electrolyte diaphragm by virtue of capillary force, and the carbonate electrolyte is fixed in the diaphragm carrier to form an electrolyte layer. The core part of the MCFC is an electrolyte membrane, and the membrane immersed in the electrolyte plays roles in blocking electrons and bipolar reaction gases and conducting ions. The MCFC diaphragm is prepared by the method of preparing LiAlO2Mixing with solvent and other functional components to prepare stable and uniform slurry, and then preparing the prepared slurry into the diaphragm by a tape casting method or a tape casting method. In the diaphragm slurry prepared by using organic solvent or water as solvent, the diaphragm prepared by the tape casting or belt casting method needs to volatilize the solvent component in the film for a certain drying time to form a diaphragm blank, and a plurality of diaphragm blanks are hot-pressed to form a relatively compact diaphragm.
Certain thickness error exists in the curtain coating preparation process of the membrane blank, certain error also exists in the hot pressing process of a plurality of membrane blank, certain solvent is still kept in the hot-press molding diaphragm, and the factors can influence the performance of the assembled MCFC.
Disclosure of Invention
The invention aims to provide a molten carbonate fuel cell electrolyte membrane and a preparation method thereof, which solve the defect that the thickness of the existing molten carbonate fuel cell electrolyte membrane has errors in the preparation process; the invention provides a method for controlling the quality of an electrolyte membrane of a molten carbonate fuel cell according to the characteristics of the electrolyte membrane of the carbonate electrolyte, which controls the quality of the electrolyte membrane of the molten carbonate fuel cell to a certain level through a series of preparation process control and test methods, ensures the quality control in the assembly process of the molten carbonate fuel cell and further ensures the assembly performance of the molten carbonate fuel cell.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a method for controlling the quality of an electrolyte membrane of a molten carbonate fuel cell, which comprises the following steps,
step 1, dividing a plurality of MCFC membrane element embryos into a plurality of groups; cutting a plurality of MCFC membrane element blanks in each group to obtain MCFC membrane element blank sheets with the same size; orderly stacking a plurality of MCFC membrane element blank sheets in each group to obtain an MCFC membrane element blank stack;
step 2, carrying out hot pressing on each MCFC membrane element blank stack to obtain a formed MCFC membrane element blank stack;
step 3, orderly stacking a plurality of formed MCFC membrane element embryo stacks to obtain matched MCFC membrane element embryo stacks, wherein the thickness value of each measuring point of the matched MCFC membrane element embryo stacks is less than or equal to 0.2 mm;
step 4, carrying out hot pressing on the matched MCFC membrane element embryo stack to obtain a hot-pressed MCFC membrane element embryo stack;
and 5, drying the MCFC membrane blank stack subjected to hot pressing to obtain the MCFC membrane, wherein the weight loss rate of the MCFC membrane is 1-3%.
Preferably, in step 1, the plurality of MCFC membrane element embryonic pieces in each group are stacked in order to obtain an MCFC membrane element embryonic stack, and the specific method is as follows:
optionally measuring the thickness of each MCFC diaphragmatic cellulose sheet at a plurality of measuring points;
and orderly stacking a plurality of MCFC membrane element blank sheets in each group according to the thickness matching principle to obtain the MCFC membrane element blank stack.
Preferably, the thickness is measured at any optional multiple measuring points on each piece of MCFC diaphragmatic cellulose embryo sheet by the following specific method:
selecting a plurality of measuring points in the length direction and the width direction of each MCFC membrane element blank sheet to measure the thickness; and selecting a measuring point at four corners of each MCFC membrane element blank sheet to measure the thickness.
Preferably, in step 3, a plurality of assembled MCFC membrane-associated embryonic stacks are stacked in order to obtain a matched MCFC membrane-associated embryonic stack, and the specific method is as follows:
measuring thickness at an optional plurality of measurement points on each MCFC membrane stack;
and orderly stacking a plurality of formed MCFC membrane element embryo stacks according to a thickness matching principle to obtain the matched MCFC membrane element embryo stacks.
Preferably, the thickness is measured at an optional plurality of measurement points on each MCFC membrane blastosphere stack by:
selecting a plurality of measuring points in the length direction and the width direction of each MCFC membrane element embryo stack to measure the thickness; and selecting a measuring point at four corners of each MCFC membrane element blank stack to measure the thickness.
Preferably, in step 4, the process conditions for hot-pressing the matched MCFC membrane element embryo stack are as follows:
the hot pressing temperature is 75-95 ℃, and the pressure maintaining time is 2-4 minutes.
Preferably, in step 5, the MCFC membrane blank stack after hot pressing is dried to obtain an MCFC membrane, and the specific drying process conditions are as follows:
drying for 24-36 h at the temperature of 25-40 ℃.
The molten carbonate fuel cell membrane is prepared based on the method.
Compared with the prior art, the invention has the beneficial effects that:
according to the molten carbonate fuel cell diaphragm and the preparation method thereof, the molten carbonate fuel cell diaphragm formed by hot pressing through the grouping hot pressing and thickness matching method can control the thickness errors of different positions within 0.2mm, the internal solvent in the diaphragm is controlled within 1-3% through the drying method, the resistance of the dried diaphragm is measured, and the resistance of the megaohm level ensures that the diaphragm has good insulating property; the preparation method of the diaphragm ensures the smoothness and the insulating property of the diaphragm and greatly improves the assembly property and the discharge property of the MCFC battery stack.
Detailed Description
In order to obtain the membrane quality of the molten carbonate fuel cell with good performance, the invention obtains the high-quality membrane of the molten carbonate fuel cell by means of quality control in the preparation process, testing the thicknesses of different positions, the proportion of solvents in the membrane, the membrane resistance and the like, ensures the quality control in the assembly process of the molten carbonate fuel cell and further ensures the assembly performance of the molten carbonate fuel cell.
The invention provides a preparation method of a molten carbonate fuel cell diaphragm, which comprises the following steps:
step 1, matching and preparing a molten carbonate fuel cell membrane.
Dividing a plurality of MCFC membrane element blanks prepared by a tape casting or belt casting method into a plurality of groups, cutting the MCFC membrane element blanks in each group to obtain a plurality of MCFC membrane element blank sheets with the same size and dimension,
selecting a plurality of measuring points in the length direction and the width direction of each MCFC membrane element blank sheet to measure the thickness;
selecting a measuring point at four corners of each MCFC membrane element blank sheet to measure the thickness;
orderly stacking a plurality of MCFC membrane element blank sheets in each group according to a thickness matching principle to obtain an MCFC membrane element blank stack;
step 2, stacking each MCFC membrane element blank on a 400-1000 ton hot press platform for hot pressing, wherein the hot pressing temperature is 75-95 ℃, and the pressure maintaining time is 2-4 minutes; selecting a plurality of measuring points in the length direction and the width direction of each MCFC membrane element embryo stack to measure the thickness;
selecting a measuring point at four corners of each MCFC membrane element blank stack to measure the thickness;
and 3, orderly stacking a plurality of formed MCFC membrane element embryo stacks according to a thickness matching principle, obtaining the matched MCFC membrane element embryo stacks by rotating or exchanging four angular positions of the membrane element embryos, and ensuring that the thickness difference of each position is controlled within 0.2 mm.
And 4, piling the matched MCFC membrane embryos on a 400-1000 ton hot press platform to carry out hot pressing again, wherein the hot pressing temperature is 75-95 ℃, and the pressure maintaining time is 2-4 minutes.
And 5, weighing the hot-pressed MCFC membrane blank stack, storing and drying in an air-blast drying oven at the drying temperature of 25-40 ℃ for 24-36 h, and weighing to obtain the MCFC membrane, wherein the weight loss rate of the MCFC membrane is 1-3%.
And 6, clamping the MCFC diaphragm between two metal electrode plates with the same size as the diaphragm, pressurizing the MCFC diaphragm by 0.2-0.5 MPa, and measuring the resistance between the two electrodes by using a megohm meter, wherein the resistance is in the megaohm level.
Example 1
1. 9 pieces of MCFC membrane element blanks prepared by tape casting or belt casting were divided into 3 groups, each 3 pieces were cut to have the same size and dimensions and were stacked in order, and each group measured the thickness of the stacked membrane element blanks in the length and width directions and at the four corners and recorded.
The first group is that three pieces of MCFC membrane element embryos are overlapped together and measured by selecting 4 points in the length direction by a vernier caliper, and the measurement marks are point A (0.35mm), point B (0.33mm), point C (0.33mm) and point D (0.35 mm); selecting 2 points in the width direction for measurement, and marking as a point E (0.33mm) and a point F (0.35 mm); the four corners measure points a (0.34mm), b (0.35mm), c (0.35mm), d (0.34 mm).
Second group: then, overlapping three preferable single MCFC membrane element embryos together, and selecting 4 points in the length direction by using a vernier caliper for measurement, wherein the points are marked as a point A (0.39mm), a point B (0.41mm), a point C (0.39mm) and a point D (0.39 mm); the measurement was performed by taking 2 points in the width direction, and the mark was E point (0.39mm) and E point (0.39 mm). The four corners measure points a (0.41mm), b (0.39mm), c (0.39mm), d (0.39 mm).
Third group: the preferable three single MCFC membrane-isolated embryos are overlapped together by the same method, and measured by selecting 4 points in the length direction by a vernier caliper, and the points are marked as A point (0.36mm), B point (0.39mm), C point (0.36mm) and D point (0.36 mm); the measurement was performed by taking 2 points in the width direction, and the mark was E point (0.36mm) and E point (0.37 mm). The four corners measure points a (0.37mm), b (0.37mm), c (0.36mm), d (0.37 mm).
2. And (3) respectively carrying out hot pressing on the 3 groups of the element embryos grouped in the step (1) on a 400-ton hot press platform, wherein the hot pressing temperature is 85 ℃, and the pressure maintaining time is 3 minutes. 3 sets of the hot press molded green bodies were measured and recorded in the length and width directions and the positions of the four corners.
In the first group, measuring 4 points in the length direction of the membrane biscuit after hot press molding by using a vernier caliper, wherein the measuring marks are a point A (0.32mm), a point B (0.31mm), a point C (0.31mm) and a point D (0.32 mm); selecting 2 points in the width direction for measurement, and marking as a point E (0.31mm) and a point F (0.32 mm); the four corners measure points a (0.32mm), b (0.32mm), c (0.32mm), d (0.31 mm).
Second group: measuring the membrane element embryo at 4 points in the length direction by using a vernier caliper after hot press molding, and marking the points as a point A (0.36mm), a point B (0.38mm), a point C (0.36mm) and a point D (0.36 mm); the measurement was performed by taking 2 points in the width direction, and the mark was E point (0.36mm) and E point (0.37 mm). The four corners measure points a (0.37mm), b (0.36mm), c (0.36mm), d (0.38 mm).
Third group: measuring the membrane element embryo at 4 points in the length direction by using a vernier caliper after hot press molding, and marking the points as a point A (0.33mm), a point B (0.35mm), a point C (0.33mm) and a point D (0.34 mm); the measurement was performed by taking 2 points in the width direction, and the mark was E point (0.33mm) and E point (0.34 mm). The four corners measure points a (0.34mm), b (0.34mm), c (0.33mm), d (0.34 mm).
3. And (3) performing thickness matching on the 3 groups of the membrane element blanks subjected to the grouped hot pressing in the step (2), and performing thickness matching according to each group of measurement record data from the length direction, the width direction and the four positions to ensure that the thickness difference of each position is controlled within 0.2 mm.
Superposing the three groups of hot-press formed diaphragm blank blanks in the step 2 together, selecting an optimal thickness matching scheme with a thickness error within 0.2mm by a method of rotating or changing four angular positions, selecting 4 points in the length direction by using a vernier caliper for measurement, and marking the points as a point A (1.01mm), a point B (1.02mm), a point C (1.01mm) and a point D (1.02 mm); 2 points in the width direction were selected and measured, and the mark was point E (1.02mm) and point E (1.02 mm). Four corners measure point a (1.02mm), point b (1.02mm), point c (1.01mm), and point d (1.02 mm).
4. And (3) hot-pressing the matched membranes on a hot press platform of 400 tons again, wherein the hot-pressing temperature is 85 ℃, and the pressure maintaining time is 3 minutes.
5. Weighing the diaphragm formed by hot pressing, storing and drying in an air-blast drying oven at the drying temperature of 30 ℃ for 24h, and controlling the drying weight loss of the diaphragm to be 1.5%.
6. The dried diaphragm is clamped between two metal electrode plates with the same size as the diaphragm, the pressure is 0.2MPa, and the resistance between the two electrodes is measured by a megger, wherein the resistance reaches over megaohm.
Example 2
1. 10 pieces of MCFC membrane element blanks prepared by a casting or belt casting method are divided into 2 groups, 5 pieces of MCFC membrane element blanks prepared by the casting or belt casting method are cut into pieces with the same size and are orderly stacked together, and the thickness of the stacked membrane element blanks is measured and recorded in the length direction, the width direction and the positions of four corners.
The first group is that five pieces of MCFC membrane element embryos are preferably overlapped together and measured by selecting 4 points in the length direction by a vernier caliper, and the measurement marks are point A (0.61mm), point B (0.62mm), point C (0.61mm) and point D (0.62 mm); selecting 2 points in the width direction for measurement, and marking as a point E (0.63mm) and a point F (0.61 mm); the four corners measure points a (0.63mm), b (0.62mm), c (0.62mm), d (0.63 mm).
The second group is that five pieces of MCFC membrane element embryos which are preferred are overlapped together and measured by selecting 4 points in the length direction by a vernier caliper, and the measurement marks are point A (0.58mm), point B (0.60mm), point C (0.59mm) and point D (0.60 mm); selecting 2 points in the width direction for measurement, and marking as a point E (0.58mm) and a point F (0.60 mm); the four corners measure points a (0.59mm), b (0.60mm), c (0.59mm), d (0.58 mm).
2. And (3) respectively carrying out hot pressing on the 2 groups of the element embryos grouped in the step (1) on a 400-ton hot press platform, wherein the hot pressing temperature is 90 ℃, and the pressure maintaining time is 4 minutes. 2 sets of the hot press molded green bodies were measured and recorded in the length and width directions and the positions of the four corners.
3. And (3) performing thickness matching on the 2 groups of the membrane element blanks subjected to the grouping hot pressing in the step (2), and performing thickness matching according to each group of measurement record data from the positions of the length direction, the width direction and the four corners, so as to ensure that the thickness difference of each position is controlled within 0.2 mm. Superposing the two groups of hot-press formed membrane blank blanks in the step 3 together, selecting an optimal thickness matching scheme with a thickness error within 0.2mm by a method of rotating or exchanging four angular positions, selecting 4 points in the length direction by using a vernier caliper for measurement, and marking the points as a point A (1.18mm), a point B (1.19mm), a point C (1.18mm) and a point D (1.19 mm); the measurement was performed by picking 2 points in the width direction, and the mark was E point (1.18mm) and E point (1.18 mm). The four corners measure point a (1.19mm), point b (1.18mm), point c (1.18mm), and point d (1.19 mm).
4. And (3) hot-pressing the matched membranes on a 400-ton hot press platform again, wherein the hot-pressing temperature is 90 ℃, and the pressure maintaining time is 4 minutes.
5. Weighing the diaphragm formed by hot pressing, storing and drying in an air-blast drying oven, wherein the drying temperature is 30 ℃, the drying time is 30 hours, and the drying weight loss of the diaphragm is controlled at 2%.
6. The dried diaphragm is clamped between two metal electrode plates with the same size as the diaphragm, the pressure is 0.2MPa, and the resistance between the two electrodes is measured by a megger, wherein the resistance reaches over megaohm.
Example 3
1. Dividing 8 MCFC membrane element blanks prepared by a casting or belt casting method into 2 groups, cutting 4 MCFC membrane element blanks prepared by the casting or belt casting method into pieces with the same size and size, neatly stacking the pieces together, measuring the thickness of the stacked membrane element blanks in the length direction, the width direction and the positions of four corners, and recording the thickness.
The first group is that four pieces of MCFC membrane element embryos are overlapped together and measured by selecting 4 points in the length direction by a vernier caliper, and the measurement marks are point A (0.46mm), point B (0.48mm), point C (0.46mm) and point D (0.48 mm); selecting 2 points in the width direction for measurement, and marking as a point E (0.49mm) and a point F (0.48 mm); the four corners measure points a (0.49mm), b (0.48mm), c (0.49mm), d (0.49 mm).
The second group is that four pieces of MCFC membrane element embryos which are preferred are overlapped together and measured by selecting 4 points in the length direction by a vernier caliper, and the measurement marks are point A (0.51mm), point B (0.50mm), point C (0.51mm) and point D (0.50 mm); selecting 2 points in the width direction for measurement, and marking as a point E (0.50mm) and a point F (0.52 mm); the four corners measure points a (0.51mm), b (0.52mm), c (0.52mm), d (0.51 mm).
2. And (3) respectively carrying out hot pressing on the 2 groups of the element embryos grouped in the step (1) on a 400-ton hot press platform, wherein the hot pressing temperature is 85 ℃, and the pressure maintaining time is 3 minutes. 2 sets of the hot press molded green bodies were measured and recorded in the length and width directions and the positions of the four corners.
3. And (3) performing thickness matching on the 2 groups of the membrane element blanks subjected to the grouping hot pressing in the step (2), and performing thickness matching according to each group of measurement record data from the positions of the length direction, the width direction and the four corners, so as to ensure that the thickness difference of each position is controlled within 0.2 mm. Superposing the two groups of hot-press formed membrane blank blanks in the step 3 together, selecting an optimal thickness matching scheme with a thickness error within 0.2mm by a method of rotating or exchanging four angular positions, selecting 4 points in the length direction by using a vernier caliper for measurement, and marking the points as a point A (0.94mm), a point B (0.93mm), a point C (0.93mm) and a point D (0.94 mm); the measurement was performed by selecting 2 points in the width direction, and the mark was E point (0.94mm) and E point (0.94 mm). The four corners measure point a (0.94mm), point b (0.93mm), point c (0.94mm), and point d (0.93 mm).
4. And (3) hot-pressing the matched membranes on a hot press platform of 400 tons again, wherein the hot-pressing temperature is 85 ℃, and the pressure maintaining time is 3 minutes.
5. Weighing the diaphragm formed by hot pressing, storing and drying in an air-blast drying oven, wherein the drying temperature is 30 ℃, the drying time is 30 hours, and the drying weight loss of the diaphragm is controlled at 2%.
6. The dried diaphragm is clamped between two metal electrode plates with the same size as the diaphragm, the pressure is 0.2MPa, and the resistance between the two electrodes is measured by a megger, wherein the resistance reaches over megaohm.
The single cell experiment carried out by assembling the three prepared electrolyte membrane materials with the diaphragm and the electrode shows that the current density is 120mA/cm2The discharge voltages of examples 1,2 and 3 were 0.72V, 0.79V and 0.71V, respectively, and the power densities were 0.071W/cm, respectively2，0.083W/cm2，0.08W/cm2。
Claims (8)
1. A method for preparing a molten carbonate fuel cell membrane, comprising the steps of,
step 1, dividing a plurality of MCFC membrane element embryos into a plurality of groups; cutting a plurality of MCFC membrane element blanks in each group to obtain MCFC membrane element blank sheets with the same size; orderly stacking a plurality of MCFC membrane element blank sheets in each group to obtain an MCFC membrane element blank stack;
step 2, carrying out hot pressing on each MCFC membrane element blank stack to obtain a formed MCFC membrane element blank stack;
step 3, orderly stacking a plurality of formed MCFC membrane element embryo stacks to obtain matched MCFC membrane element embryo stacks, wherein the thickness value of each measuring point of the matched MCFC membrane element embryo stacks is less than or equal to 0.2 mm;
step 4, carrying out hot pressing on the matched MCFC membrane element embryo stack to obtain a hot-pressed MCFC membrane element embryo stack;
and 5, drying the MCFC membrane blank stack subjected to hot pressing to obtain the MCFC membrane, wherein the weight loss rate of the MCFC membrane is 1-3%.
2. The method for preparing a molten carbonate fuel cell membrane according to claim 1, wherein in step 1, a plurality of MCFC membrane element blanks in each group are stacked in order to obtain an MCFC membrane element blank stack, and the method comprises the following specific steps:
optionally measuring the thickness of each MCFC diaphragmatic cellulose sheet at a plurality of measuring points;
and orderly stacking a plurality of MCFC membrane element blank sheets in each group according to the thickness matching principle to obtain the MCFC membrane element blank stack.
3. The method of claim 2, wherein the thickness is measured at any one of a plurality of measurement points on each MCFC membrane blank by:
selecting a plurality of measuring points in the length direction and the width direction of each MCFC membrane element blank sheet to measure the thickness; and selecting a measuring point at four corners of each MCFC membrane element blank sheet to measure the thickness.
4. The method for preparing a membrane of a molten carbonate fuel cell according to claim 1, wherein in step 3, a plurality of assembled MCFC membrane blank stacks are stacked in order to obtain matched MCFC membrane blank stacks, and the specific method comprises:
measuring thickness at an optional plurality of measurement points on each MCFC membrane stack;
and orderly stacking a plurality of formed MCFC membrane element embryo stacks according to a thickness matching principle to obtain the matched MCFC membrane element embryo stacks.
5. The method of claim 4, wherein the thickness is measured at any number of measurement points on each MCFC membrane blank stack by:
selecting a plurality of measuring points in the length direction and the width direction of each MCFC membrane element embryo stack to measure the thickness; and selecting a measuring point at four corners of each MCFC membrane element blank stack to measure the thickness.
6. The method of claim 1, wherein the step 4 comprises hot-pressing the matched MCFC membrane blank stack under the following process conditions:
the hot pressing temperature is 75-95 ℃, and the pressure maintaining time is 2-4 minutes.
7. The method for preparing a membrane of a molten carbonate fuel cell according to claim 1, wherein in step 5, the MCFC membrane blank stack after hot pressing is dried to obtain the MCFC membrane, and the specific drying process conditions are as follows:
drying for 24-36 h at 25-40 ℃.
8. A molten carbonate fuel cell membrane prepared according to the method of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110476323.8A CN113224340B (en) | 2021-04-29 | 2021-04-29 | Molten carbonate fuel cell diaphragm and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110476323.8A CN113224340B (en) | 2021-04-29 | 2021-04-29 | Molten carbonate fuel cell diaphragm and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113224340A true CN113224340A (en) | 2021-08-06 |
| CN113224340B CN113224340B (en) | 2022-11-15 |
Family
ID=77090024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110476323.8A Active CN113224340B (en) | 2021-04-29 | 2021-04-29 | Molten carbonate fuel cell diaphragm and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113224340B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112295A (en) * | 1994-01-18 | 1995-11-22 | 帕尔公司 | Battery separator |
| JP2003080567A (en) * | 2001-09-17 | 2003-03-19 | Ricoh Co Ltd | Apparatus for molding disc, method for manufacturing stamper, method for molding block, stamper and disc for fixing glass master, disc substrate and disc product |
| JP2004136276A (en) * | 2002-08-22 | 2004-05-13 | Nitto Denko Corp | Method of producing coating sheet, optical functional layer, optical element, and image display device |
| US20120156568A1 (en) * | 2010-12-21 | 2012-06-21 | GM Global Technology Operations LLC | Battery separators with variable porosity |
| CN102945974A (en) * | 2012-11-20 | 2013-02-27 | 中国科学院上海硅酸盐研究所 | Method for preparing sealing pad of solid oxide fuel cell and waste material recovery process |
| CN103474553A (en) * | 2013-09-03 | 2013-12-25 | 广州有色金属研究院 | High-power LED packaging film layer and preparing and packaging method thereof |
| CN104638218A (en) * | 2015-02-04 | 2015-05-20 | 中国华能集团清洁能源技术研究院有限公司 | Method for preparing environment-friendly molten carbonate fuel cell diaphragm |
| CN106079826A (en) * | 2016-07-18 | 2016-11-09 | 东莞市硅翔绝缘材料有限公司 | A kind of electrokinetic cell epoxy plate heating film process for pressing method |
| JP2016194720A (en) * | 2015-03-31 | 2016-11-17 | 住友化学株式会社 | Laminated film, method for producing laminated film, method for producing polarizing laminated film, and method for producing polarizing plate |
| CN111755639A (en) * | 2019-03-27 | 2020-10-09 | 丰田自动车株式会社 | Assembled battery |
| WO2021044940A1 (en) * | 2019-09-06 | 2021-03-11 | 東洋紡フイルムソリューション株式会社 | Layered product for fuel batteries |
-
2021
- 2021-04-29 CN CN202110476323.8A patent/CN113224340B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112295A (en) * | 1994-01-18 | 1995-11-22 | 帕尔公司 | Battery separator |
| JP2003080567A (en) * | 2001-09-17 | 2003-03-19 | Ricoh Co Ltd | Apparatus for molding disc, method for manufacturing stamper, method for molding block, stamper and disc for fixing glass master, disc substrate and disc product |
| JP2004136276A (en) * | 2002-08-22 | 2004-05-13 | Nitto Denko Corp | Method of producing coating sheet, optical functional layer, optical element, and image display device |
| US20120156568A1 (en) * | 2010-12-21 | 2012-06-21 | GM Global Technology Operations LLC | Battery separators with variable porosity |
| CN102544417A (en) * | 2010-12-21 | 2012-07-04 | 通用汽车环球科技运作有限责任公司 | Battery separators with variable porosity |
| CN102945974A (en) * | 2012-11-20 | 2013-02-27 | 中国科学院上海硅酸盐研究所 | Method for preparing sealing pad of solid oxide fuel cell and waste material recovery process |
| CN103474553A (en) * | 2013-09-03 | 2013-12-25 | 广州有色金属研究院 | High-power LED packaging film layer and preparing and packaging method thereof |
| CN104638218A (en) * | 2015-02-04 | 2015-05-20 | 中国华能集团清洁能源技术研究院有限公司 | Method for preparing environment-friendly molten carbonate fuel cell diaphragm |
| JP2016194720A (en) * | 2015-03-31 | 2016-11-17 | 住友化学株式会社 | Laminated film, method for producing laminated film, method for producing polarizing laminated film, and method for producing polarizing plate |
| CN106079826A (en) * | 2016-07-18 | 2016-11-09 | 东莞市硅翔绝缘材料有限公司 | A kind of electrokinetic cell epoxy plate heating film process for pressing method |
| CN111755639A (en) * | 2019-03-27 | 2020-10-09 | 丰田自动车株式会社 | Assembled battery |
| WO2021044940A1 (en) * | 2019-09-06 | 2021-03-11 | 東洋紡フイルムソリューション株式会社 | Layered product for fuel batteries |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113224340B (en) | 2022-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5015598B2 (en) | Method for producing solid oxide fuel cell | |
| Schafbauer et al. | Tape casting of anode supports for solid oxide fuel cells at Forschungszentrum Jülich | |
| US7914636B2 (en) | Synergistic process and recipe for fabrication of a high integrity membrane electrode assembly of solid oxide fuel cell | |
| Shen et al. | Co-sintering anode and Y2O3 stabilized ZrO2 thin electrolyte film for solid oxide fuel cell fabricated by co-tape casting | |
| CN113451660B (en) | Method for assembling inner bipolar post lamination type winding battery | |
| CN109818019B (en) | Gas diffusion layer membrane electrode assembly with flow field and preparation method of matched bipolar plate thereof | |
| Liu et al. | Comparative study on the performance of tubular and button cells with YSZ membrane fabricated by a refined particle suspension coating technique | |
| CN112028627B (en) | Solid electrolyte sheet firing method and product | |
| JP2001196069A (en) | Fuel cell | |
| KR101222722B1 (en) | Interconnecting plate for solid oxide fuel cell and manufacturing method thereof, and solid oxide fuel cell using said interconnecting plate | |
| CN113224340B (en) | Molten carbonate fuel cell diaphragm and preparation method thereof | |
| KR20110065084A (en) | Fabrication of unit cell of the solid oxide fuel cell by transcripition method | |
| JP5814468B2 (en) | Solid oxide fuel cell unit cell manufacturing process | |
| CN110718699A (en) | Preparation method of metal nitride coating of stainless steel bipolar plate for fuel cell | |
| CN113025980A (en) | Corrosion-resistant film layer for fuel cell bipolar plate and preparation method thereof | |
| CN114335640B (en) | Sintering method of anode support type SOFC half-cell | |
| US11349135B2 (en) | Method of preparation and application for glass ceramic sealing thin strips | |
| KR100972529B1 (en) | Method of interconnector surface treatment of solid oxide fuel cell | |
| KR20110041288A (en) | Manufacturing method of tubular anode-supported electrolyte and tubular solid oxide fuel cell | |
| CN112763922B (en) | Single cell testing method and device for simulating state of galvanic pile | |
| CN112599799A (en) | Preparation method of HT-PEMFC gas diffusion electrode, membrane electrode and preparation method thereof | |
| US20180309147A1 (en) | Membrane electrode assembly structure of fuel cell and the method of fabricating the same | |
| TWI708747B (en) | A method of preparation and application for glass ceramic sealing thin strips | |
| CN107785598B (en) | Half-cell symmetrical solid oxide fuel cell | |
| JPS60230366A (en) | Stacked unit of fuel cell and its manufacture |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |