CN102244214A - Sealing material of molten carbonate fuel cell and preparation method thereof - Google Patents
Sealing material of molten carbonate fuel cell and preparation method thereof Download PDFInfo
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- CN102244214A CN102244214A CN2011101543196A CN201110154319A CN102244214A CN 102244214 A CN102244214 A CN 102244214A CN 2011101543196 A CN2011101543196 A CN 2011101543196A CN 201110154319 A CN201110154319 A CN 201110154319A CN 102244214 A CN102244214 A CN 102244214A
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- filling material
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- 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
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to a sealing material of a molten carbonate fuel cell, which is prepared from an adhesion agent and a sealing filling material. The adhesion agent is prepared from water glass and a ZS-1071 high temperature resistance inorganic adhesive. The sealing filling material is prepared from zirconium oxide bulk fibers/powder, mica powder, glass powder and glass fibers. A preparation method of the sealing material comprises the following steps of mixing the water glass with the ZS-1071 high temperature resistance inorganic adhesive and adding distilled water into the mixture to prepare a viscous adhesion agent; uniformly grinding the zirconium oxide bulk fibers/powder, the mica powder, the glass powder and the glass fibers into powder under the condition of absolute ethyl alcohol to prepare a sealing filling material; and finally mixing the prepared adhesion agent with the prepared sealing filling material, grinding and drying the mixture, rolling the mixture into a sealing fin in a rolling machine and then cutting the sealing fin into a required shape. According to the sealing material disclosed by the invention, the problem of sealing between cell units and the problem that air holes of double pole plates are blocked by molten salt are solved and effective guarantee is provided for high-power generation of the molten carbonate fuel cell.
Description
Technical field
The present invention relates to the molten carbonate fuel cell technical field, be specifically related to encapsulant of a kind of molten carbonate fuel cell and preparation method thereof.
Technical background
The elementary cell of molten carbonate fuel cell is made of negative electrode, electrolyte and anode, realize powerful generating, needs the mode of each unit by series connection coupled together, and forms the molten carbonate fuel cell heap.Molten carbonate fuel cell generally adopts planar structure, sealing between the battery relies on the viscosity of fused carbonate and certain pressure to form the wet sealing of one deck between bipolar plates, and this layer sealing needs very big thrust, the excessive intensity to electrode of thrust also can exert an influence, the carbonate of fusion can flow into the gas passage of battery downwards in addition, pile up and blockage phenomenon at last in the air inlet or the gas outlet of battery, thus the high power battery generating to need one of key issue of solving be exactly that sealing between each battery unit and bipolar plates pore are by the fused salt blocking problem.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide encapsulant of a kind of molten carbonate fuel cell and preparation method thereof, the sealing material has solved sealing between the battery unit and bipolar plates pore by the fused salt blocking problem, provides effective assurance to the high-power generating of molten carbonate fuel cell.
In order to achieve the above object, the technical scheme taked of the present invention is:
A kind of encapsulant of molten carbonate fuel cell is made by binding agent and sealed filling material, and the weight ratio of binding agent and sealed filling material is (0.2～0.6): (0.8～0.4); Binding agent is made by waterglass and ZS-1071 high temperature resistant inorganic adhesive, and the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is (0.4～0.6): (0.6～0.4); Sealed filling material is made by zirconia loose fiber/powder, mica powder, glass dust and glass fibre, and wherein the weight ratio of zirconia loose fiber/powder, mica powder, glass dust and glass fibre is 1: (0.2～1.05): (0.4～1.2): (0.4～1.2).
Described waterglass, ZS-1071 high temperature resistant inorganic adhesive are in soft state in the time of 600～650 ℃, viscosity reaches 60～100PaS/25 ℃.
A kind of preparation method of encapsulant of molten carbonate fuel cell may further comprise the steps:
1), waterglass and ZS-1071 high temperature resistant inorganic adhesive are at room temperature mixed back adding distilled water, be modulated into concentration and reach 70～90% thick binding agent, the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is (0.4～0.6): (0.6～0.4);
2), with zirconia loose fiber/powder, mica powder, glass dust and glass fibre even grind into powder under absolute ethyl alcohol, the particle diameter of powder is 0.1～5 μ m, make sealed filling material, wherein the weight ratio of zirconia loose fiber/powder, mica powder, glass dust and glass fibre is 1: (0.2～1.05): (0.4～1.2): (0.4～1.2);
3) sealed filling material that, binding agent and the step 2 that step 1) is prepared) prepares mixes, the weight ratio of binding agent and sealed filling material is (0.2～0.6): (0.8～0.4), ground 1～2 hour, grinding power is 1.1kW～3kW/380V, rotating speed is 450r/min, oven dry is rolled into diaphragm seal in roll squeezer then, is cut to required form then.
Because encapsulant of the present invention has solved sealing between the battery unit and bipolar plates pore by the fused salt blocking problem, use the seal washer among the present invention, make no longer generation gas leak phenomenon between battery, also reduced simultaneously pressure requirement, further made the electrode of preparation be well positioned to meet requirement of experiment battery pile; Use seal washer simultaneously, make fused salt not rethink in the bipolar plates pore and flow into, the gas shutoff phenomenon does not take place again, so provide effective assurance the high-power generating of molten carbonate fuel cell.
Embodiment
Below in conjunction with specific embodiment the present invention is done detailed description.
Embodiment 1
A kind of encapsulant of molten carbonate fuel cell is made by binding agent and sealed filling material, and the weight ratio of binding agent and sealed filling material is 0.2: 0.8; Binding agent is made by waterglass and ZS-1071 high temperature resistant inorganic adhesive, and the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.4: 0.6; Sealed filling material is made by zirconia loose fiber, mica powder, glass dust and glass fibre, and wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 0.2: 0.4: 0.4.
A kind of preparation method of encapsulant of molten carbonate fuel cell may further comprise the steps:
1), waterglass and ZS-1071 high temperature resistant inorganic adhesive at room temperature mixed the back add distilled water, be modulated into concentration and reach 70% thick binding agent, the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.4: 0.6;
2), with zirconia loose fiber, mica powder, glass dust and glass fibre even grind into powder under absolute ethyl alcohol, the particle diameter of powder is 0.1 μ m, make sealed filling material, wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 0.2: 0.4: 0.4;
3), binding agent and step 2 that step 1) is prepared) sealed filling material for preparing mixes, the weight ratio of binding agent and sealed filling material is 0.2: 0.8; Ground 1 hour, grinding power is 1.1kW, and rotating speed is 450r/min, and oven dry is rolled into diaphragm seal in roll squeezer then, is cut to required form then.
Pei Zhi binding agent viscosity reaches 60PaS/25 ℃ like this, and the encapsulant that makes is hard, is suitable for doing the sealing frame.
Embodiment 2
A kind of encapsulant of molten carbonate fuel cell is made by binding agent and sealed filling material, and the weight ratio of binding agent and sealed filling material is 0.2: 0.8; Binding agent is made by waterglass and ZS-1071 high temperature resistant inorganic adhesive, and the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.5: 0.5; Sealed filling material is made by zirconia loose fiber, mica powder, glass dust and glass fibre, and wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 0.5: 0.8: 0.8.
A kind of preparation method of encapsulant of molten carbonate fuel cell may further comprise the steps:
1), waterglass and ZS-1071 high temperature resistant inorganic adhesive at room temperature mixed the back add distilled water, be modulated into concentration and reach 80% thick binding agent, the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.5: 0.5;
2), with zirconia bulky powder, mica powder, glass dust and glass fibre even grind into powder under absolute ethyl alcohol, the particle diameter of powder is 2 μ m, make sealed filling material, wherein the weight ratio of zirconia bulky powder, mica powder, glass dust and glass fibre is 1: 0.5: 0.8: 0.8;
3) sealed filling material that, binding agent and the step 2 that step 1) is prepared) prepares mixes, the weight ratio of binding agent and sealed filling material is 0.2: 0.8, ground 1.5 hours, grinding power is 1.1kW, rotating speed is 450r/min, oven dry is rolled into diaphragm seal in roll squeezer then, is cut to required form then.
Pei Zhi binding agent viscosity reaches 80PaS/25 ℃ like this, and the encapsulant that makes is smaller than the hardness of embodiment 1, is suitable for doing gasket seal.
Embodiment 3
A kind of encapsulant of molten carbonate fuel cell is made by binding agent and sealed filling material, and the weight ratio of binding agent and sealed filling material is 0.2: 0.8; Binding agent is made by waterglass and ZS-1071 high temperature resistant inorganic adhesive, and the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.6: 0.4; Sealed filling material is made by zirconia loose fiber, mica powder, glass dust and glass fibre, and wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 1: 1.2: 1.2.
A kind of preparation method of encapsulant of molten carbonate fuel cell may further comprise the steps:
1), waterglass and ZS-1071 high temperature resistant inorganic adhesive at room temperature mixed the back add 100g distilled water, be modulated into concentration and reach 90% thick binding agent, the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.6: 0.4;
2), with zirconia loose fiber, mica powder, glass dust and glass fibre even grind into powder under absolute ethyl alcohol, the particle diameter of powder is 5 μ m, make sealed filling material, wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 1: 1.2: 1.2;
3) sealed filling material that, binding agent and the step 2 that step 1) is prepared) prepares mixes, the weight ratio of binding agent and sealed filling material is 0.6: 0.4, ground 2 hours, grinding power is 1.1kW, rotating speed is 450r/min, oven dry is rolled into diaphragm seal in roll squeezer then, is cut to required form then.
Pei Zhi binding agent viscosity reaches 100PaS/25 ℃ like this, and the hardness of the encapsulant that makes is between embodiment 1 and embodiment 2, and performance is best.
Claims (9)
1. the encapsulant of a molten carbonate fuel cell, it is characterized in that: made by binding agent and sealed filling material, the weight ratio of binding agent and sealed filling material is (0.2～0.6): (0.8～0.4); Binding agent is made by waterglass and ZS-1071 high temperature resistant inorganic adhesive, and the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is (0.4～0.6): (0.6～0.4); Sealed filling material is made by zirconia loose fiber/powder, mica powder, glass dust and glass fibre, and wherein the weight ratio of zirconia loose fiber/powder, mica powder, glass dust and glass fibre is 1: (0.2～1.05): (0.4～1.2): (0.4～1.2).
2. the encapsulant of a kind of molten carbonate fuel cell according to claim 1, it is characterized in that: described waterglass, ZS-1071 high temperature resistant inorganic adhesive are in soft state in the time of 600～650 ℃, viscosity reaches 60～100PaS/25 ℃.
3. the encapsulant of a kind of molten carbonate fuel cell according to claim 1, it is characterized in that: made by binding agent and sealed filling material, the weight ratio of binding agent and sealed filling material is 0.2: 0.8; Binding agent is made by waterglass and ZS-1071 high temperature resistant inorganic adhesive, and the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.4: 0.6; Sealed filling material is made by zirconia loose fiber, mica powder, glass dust and glass fibre, and wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 0.2: 0.4: 0.4.
4. the encapsulant of a kind of molten carbonate fuel cell according to claim 1, it is characterized in that: made by binding agent and sealed filling material, the weight ratio of binding agent and sealed filling material is 0.2: 0.8; Binding agent is made by waterglass and ZS-1071 high temperature resistant inorganic adhesive, and the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.5: 0.5; Sealed filling material is made by zirconia loose fiber, mica powder, glass dust and glass fibre, and wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 0.5: 0.8: 0.8.
5. the encapsulant of a kind of molten carbonate fuel cell according to claim 1, it is characterized in that: made by binding agent and sealed filling material, the weight ratio of binding agent and sealed filling material is 0.2: 0.8; Binding agent is made by waterglass and ZS-1071 high temperature resistant inorganic adhesive, and the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.6: 0.4; Sealed filling material is made by zirconia loose fiber, mica powder, glass dust and glass fibre, and wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 1: 1.2: 1.2.
6. the preparation method of the encapsulant of a molten carbonate fuel cell is characterized in that, may further comprise the steps:
1), waterglass and ZS-1071 high temperature resistant inorganic adhesive are at room temperature mixed back adding distilled water, be modulated into concentration and reach 70～90% thick binding agent, the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is (0.4～0.6): (0.6～0.4);
2), with zirconia loose fiber/powder, mica powder, glass dust and glass fibre even grind into powder under absolute ethyl alcohol, the particle diameter of powder is 0.1～5 μ m, make sealed filling material, wherein the weight ratio of zirconia loose fiber/powder, mica powder, glass dust and glass fibre is 1: (0.2～1.05): (0.4～1.2): (0.4～1.2);
3) sealed filling material that, binding agent and the step 2 that step 1) is prepared) prepares mixes, the weight ratio of binding agent and sealed filling material is (0.2～0.6): (0.8～0.4), ground 1～2 hour, oven dry then, grinding power is 1.1kW～3kW/380V, rotating speed is 450r/min, is rolled into diaphragm seal in roll squeezer, is cut to required form then.
7. the preparation method of the encapsulant of a kind of molten carbonate fuel cell according to claim 6 is characterized in that, may further comprise the steps:
1), waterglass and ZS-1071 high temperature resistant inorganic adhesive at room temperature mixed the back add distilled water, be modulated into concentration and reach 70% thick binding agent, the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.4: 0.6;
2), with zirconia loose fiber, mica powder, glass dust and glass fibre even grind into powder under absolute ethyl alcohol, the particle diameter of powder is 0.1 μ m, make sealed filling material, wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 0.2: 0.4: 0.4;
3), binding agent and step 2 that step 1) is prepared) sealed filling material for preparing mixes, the weight ratio of binding agent and sealed filling material is 0.2: 0.8; Ground 1 hour, grinding power is 1.1kW, and rotating speed is 450r/min, and oven dry is rolled into diaphragm seal in roll squeezer then, is cut to required form then.
8. the preparation method of the encapsulant of a kind of molten carbonate fuel cell according to claim 6 is characterized in that, may further comprise the steps:
1), waterglass and ZS-1071 high temperature resistant inorganic adhesive at room temperature mixed the back add distilled water, be modulated into concentration and reach 80% thick binding agent, the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.5: 0.5;
2), with zirconia bulky powder, mica powder, glass dust and glass fibre even grind into powder under absolute ethyl alcohol, the particle diameter of powder is 2 μ m, make sealed filling material, wherein the weight ratio of zirconia bulky powder, mica powder, glass dust and glass fibre is 1: 0.5: 0.8: 0.8;
3) sealed filling material that, binding agent and the step 2 that step 1) is prepared) prepares mixes, the weight ratio of binding agent and sealed filling material is 0.2: 0.8, ground 1.5 hours, grinding power is 1.1kW, rotating speed is 450r/min, oven dry is rolled into diaphragm seal in roll squeezer then, is cut to required form then.
9. the preparation method of the encapsulant of a kind of molten carbonate fuel cell according to claim 6 is characterized in that, may further comprise the steps:
1), waterglass and ZS-1071 high temperature resistant inorganic adhesive at room temperature mixed the back add 100g distilled water, be modulated into concentration and reach 90% thick binding agent, the weight ratio of waterglass and ZS-1071 high temperature resistant inorganic adhesive is 0.6: 0.4;
2), with zirconia loose fiber, mica powder, glass dust and glass fibre even grind into powder under absolute ethyl alcohol, the particle diameter of powder is 5 μ m, make sealed filling material, wherein the weight ratio of zirconia loose fiber, mica powder, glass dust and glass fibre is 1: 1: 1.2: 1.2;
3) sealed filling material that, binding agent and the step 2 that step 1) is prepared) prepares mixes, the weight ratio of binding agent and sealed filling material is 0.6: 0.4, ground 2 hours, grinding power is 1.1kW, rotating speed is 450r/min, oven dry is rolled into diaphragm seal in roll squeezer then, is cut to required form then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101543196A CN102244214A (en) | 2011-06-09 | 2011-06-09 | Sealing material of molten carbonate fuel cell and preparation method thereof |
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| CN2011101543196A CN102244214A (en) | 2011-06-09 | 2011-06-09 | Sealing material of molten carbonate fuel cell and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775068A (en) * | 2012-08-03 | 2012-11-14 | 上海锦众信息科技有限公司 | Preparation method for sealing piece of fuel cell |
| CN104733657A (en) * | 2015-03-31 | 2015-06-24 | 昆山艾可芬能源科技有限公司 | Sealing material for solid oxide fuel battery stack |
| CN110391430A (en) * | 2019-07-24 | 2019-10-29 | 中国华能集团清洁能源技术研究院有限公司 | A kind of restorative procedure that molten carbonate fuel cell sealing surface is impaired |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775068A (en) * | 2012-08-03 | 2012-11-14 | 上海锦众信息科技有限公司 | Preparation method for sealing piece of fuel cell |
| CN102775068B (en) * | 2012-08-03 | 2016-03-30 | 上海锦众信息科技有限公司 | A kind of preparation method of diaphragm seal of fuel cell |
| CN104733657A (en) * | 2015-03-31 | 2015-06-24 | 昆山艾可芬能源科技有限公司 | Sealing material for solid oxide fuel battery stack |
| CN110391430A (en) * | 2019-07-24 | 2019-10-29 | 中国华能集团清洁能源技术研究院有限公司 | A kind of restorative procedure that molten carbonate fuel cell sealing surface is impaired |
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Application publication date: 20111116 |