CN1660954A - High temperature suitable sealing material in use for fuel cell of solid oxide and preparing method - Google Patents
High temperature suitable sealing material in use for fuel cell of solid oxide and preparing method Download PDFInfo
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- CN1660954A CN1660954A CN2004100135823A CN200410013582A CN1660954A CN 1660954 A CN1660954 A CN 1660954A CN 2004100135823 A CN2004100135823 A CN 2004100135823A CN 200410013582 A CN200410013582 A CN 200410013582A CN 1660954 A CN1660954 A CN 1660954A
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- China
- Prior art keywords
- sealing materials
- seal
- solid oxide
- fuel cell
- high temperature
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Glass Compositions (AREA)
- Fuel Cell (AREA)
Abstract
A refractory sealant for solid oxide type fuel battery is proportionally prepared from BaO, CaO, Al2O3, SiO2, La2O3 and B2O3 through mixing, high-temp fusing, breaking, classifying, and compounding. Its advantages are high mechanical strength, air tightness electric insulation and stability.
Description
(1) technical field:
The present invention proposes a kind of seal, sealing materials and preparation method of Solid Oxide Fuel Cell, and this seal, sealing materials belongs to ceramic.
(2) background technology:
Solid Oxide Fuel Cell (be called for short SOFC) is a kind of energy conversion device, by fuel gas (as H
2, CO etc.) and oxygenant (as O
2) electrochemical reaction chemical energy is converted into electric energy, the working temperature of SOFC is generally at 800-1000 ℃, and has strong oxidizing property and reducing gas to exist, if there is leakage cell device or interelement junction, can cause the failure on battery pile structure and the function, even blast.Therefore, the hot expansibility of sealing material will match with other elements, and has good thermostability and chemical stability.
The prior art close with the present invention has BaO-Al
2O
3-SiO
2System's seal, sealing materials and CaO-Al
2O
3-SiO
2System's seal, sealing materials, wherein BaO-Al
2O
3-SiO
2The main component of system's seal, sealing materials comprises BaO, Al
2O
3, SiO
2, this seal, sealing materials thermal characteristics matches, and is anti-oxidant Well-recovered, be easy to and the stupalith combination of elements, but this seal, sealing materials less stable, when sealing temperature was high slightly, seal, sealing materials just presented loose shape, and serious gas leak phenomenon is arranged.CaO-Al
2O
3-SiO
2The main component of system's seal, sealing materials comprises CaO, Al
2O
3, SiO
2, it is good that this seal, sealing materials has resistance to air loss, anti-oxidant reductibility height, and easily with the characteristics of stupalith combination of elements, but that the thermal characteristics of this material and other cell device is mated is relatively poor, can cause the damage of cell device in intensification and temperature-fall period.
(3) summary of the invention:
Seal, sealing materials of the present invention belongs to BaO-CaO-Al
2O
3-SiO
2Series, this material is by BaO, CaO, Al
2O
3, SiO
2, La
2O
3, B
2O
3Form, wherein the mass percent of each component is respectively: BaO:43-48%; CaO:2.1-2.8%; Al
2O
3: 8-14%; SiO
2: 15-20%; La
2O
3: 11-13.5%; B
2O
3: 12.0-12.8%.
Preparation method among the present invention realizes according to the following steps:
1. batch mixing: in component and ratio with the raw material uniform mixing;
2. high-temperature fusion: with the raw material that mixes under 1300-1600 ℃ of temperature fusion 2-6 hour;
3. pulverize:, under 40-60 ℃ of temperature, dry, through ball milling formation powder with the taking-up of in frozen water, quenching of fused glass state material;
4. classification: the powder that makes is sieved with 200 mesh sieve, and it is standby to obtain glass powder;
5. composite: as glass powder and organic binder bond to be formed pasty state by 5: 1 quality than mixed grinding, obtain seal, sealing materials.
Organic binder bond in the above-mentioned steps 5 is that Terpineol 350 and ethyl cellulose were prepared by 19: 1.
The present invention designs the seal, sealing materials that different material is formed for overcoming the prior art deficiency, and it is good that this seal, sealing materials has resistance to air loss, thermal characteristics matches, the characteristics that thermostability and chemical stability are high, thus reach the performance that improves battery, the purpose of extending battery life.
(4) embodiment:
Embodiment 1:
Get BaCO
3: 49.8g, CaO:2.52g, Al
2O
3: 9.0g, SiO
2: 16.13g, La
2O
3: 12.15g, B
2O
3: 11.5g, after mixing, put into the 50ml agate jar, ground 4 hours with planetary ball mill is mixed, put into plumbago crucible after the taking-up in the fusion 5 hours under 1500 ℃ of conditions of high temperature program stove, in frozen water, quench and take out, the oven dry back becomes powder with ball mill grinding under 40-60 ℃ of temperature, sieves with 200 mesh sieve, obtains stand-by glass powder, take by weighing glass powder and ethyl cellulose at 10: 1 by mass ratio, ground 10 minutes in agate mortar, it is mixed, the quality with 19 times of ethyl cellulose takes by weighing Terpineol 350 again, three kinds of materials are mixed be the heavy-gravity pasty state, obtain seal, sealing materials.Thermal linear expansion coefficient when this material is used is 12.13 * 10
-6/ K.
Embodiment 2:
Get BaCO
3: 50.99g, CaO:2.37g, Al
2O
3: 8.3g, SiO
2: 18g, La
2O
3: 10.6g, B
2O
3: 11.3g, after mixing, put into the 50ml agate jar, ground 4 hours with planetary ball mill is mixed, put into plumbago crucible after the taking-up in the fusion 5 hours under 1500 ℃ of conditions of high temperature program stove, in frozen water, quench and take out, the oven dry back becomes powder with ball mill grinding under 40-60 ℃ of temperature, sieves with 200 mesh sieve, obtains stand-by glass powder, take by weighing glass powder and ethyl cellulose at 10: 1 by mass ratio, ground 10 minutes in agate mortar, it is mixed, the quality with 19 times of ethyl cellulose takes by weighing Terpineol 350 again, three kinds of materials are mixed be the heavy-gravity pasty state, obtain seal, sealing materials.Thermal linear expansion coefficient when this material is used is 11.35 * 10
-6/ K.
Embodiment 3:
Get BaCO
3: 51.5g, CaO:2.0g, Al
2O
3: 10.4g, SiO
2: 15.17g, La
2O
3: 11.07g, B
2O
3: 11.36g, after mixing, put into the 50ml agate jar, ground 4 hours with planetary ball mill is mixed, put into plumbago crucible after the taking-up in the fusion 5 hours under 1500 ℃ of conditions of high temperature program stove, in frozen water, quench and take out, the oven dry back becomes powder with ball mill grinding under 40-60 ℃ of temperature, sieves with 200 mesh sieve, obtains stand-by glass powder, take by weighing glass powder and ethyl cellulose at 10: 1 by mass ratio, ground 10 minutes in agate mortar, it is mixed, the quality with 19 times of ethyl cellulose takes by weighing Terpineol 350 again, three kinds of materials are mixed be the heavy-gravity pasty state, obtain seal, sealing materials.Thermal linear expansion coefficient when this material is used is 10.34 * 10
-6/ K.
Embodiment 4:
Get BaCO
3: 52.66g, CaO:2.2g, Al
2O
3: 12.6g, SiO
2: 13.5g, La
2O
3: 10.0g, B
2O
3: 10.8g, after mixing, put into the 50ml agate jar, ground 4 hours with planetary ball mill is mixed, put into plumbago crucible after the taking-up in the fusion 5 hours under 1500 ℃ of conditions of high temperature program stove, in frozen water, quench and take out, the oven dry back becomes powder with ball mill grinding under 40-60 ℃ of temperature, sieves with 200 mesh sieve, obtains stand-by glass powder, take by weighing glass powder and ethyl cellulose at 10: 1 by mass ratio, ground 10 minutes in agate mortar, it is mixed, the quality with 19 times of ethyl cellulose takes by weighing Terpineol 350 again, three kinds of materials are mixed be the heavy-gravity pasty state, obtain seal, sealing materials.Thermal linear expansion coefficient when this material is used is 11.07 * 10
-6/ K.
Embodiment 5:
Get BaCO
3: 55.6g, CaO:1.9g, Al
2O
3: 7.2g, SiO
2: 15.2g, La
2O
3: 11.5g, B
2O
3: 11.0g, after mixing, put into the 50ml agate jar, ground 4 hours with planetary ball mill is mixed, put into plumbago crucible after the taking-up in the fusion 5 hours under 1500 ℃ of conditions of high temperature program stove, in frozen water, quench and take out, the oven dry back becomes powder with ball mill grinding under 40-60 ℃ of temperature, sieves with 200 mesh sieve, obtains stand-by glass powder, take by weighing glass powder and ethyl cellulose at 10: 1 by mass ratio, ground 10 minutes in agate mortar, it is mixed, the quality with 19 times of ethyl cellulose takes by weighing Terpineol 350 again, three kinds of materials are mixed be the heavy-gravity pasty state, obtain seal, sealing materials.Thermal linear expansion coefficient when this material is used is 10.09 * 10
-6/ K.
Claims (3)
1, a kind of high temperature seal, sealing materials that is used for Solid Oxide Fuel Cell is characterized in that: by BaO, CaO, Al
2O
3, SiO
2, La
2O
3, B
2O
3Form, wherein the mass percent of each component is respectively: BaO:43-48%; CaO:2.1-2.8%; Al
2O
3: 8-14%; SiO
2: 15-20%; La
2O
3: 11-13.5%; B
2O
3: 12.0-12.8%.
2, a kind of preparation method who is used for the high temperature seal, sealing materials of Solid Oxide Fuel Cell is characterized in that: realize according to the following steps:
(1) batch mixing: in component and ratio with the raw material uniform mixing;
(2) high-temperature fusion: with the raw material that mixes under 1300-1600 ℃ of temperature fusion 2-6 hour;
(3) pulverize:, under 40-60 ℃ of temperature, dry, through ball milling formation powder with the taking-up of in frozen water, quenching of fused glass state material;
(4) classification: the powder that makes is sieved with 200 mesh sieve, and it is standby to obtain glass powder;
(5) composite: as glass powder and organic binder bond to be formed pasty state by 5: 1 quality than mixed grinding, obtain seal, sealing materials.
3, preparation method according to claim 2 is characterized in that: organic binder bond is that Terpineol 350 and ethyl cellulose were prepared by 19: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100135823A CN1285696C (en) | 2004-02-25 | 2004-02-25 | High temperature suitable sealing material in use for fuel cell of solid oxide and preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100135823A CN1285696C (en) | 2004-02-25 | 2004-02-25 | High temperature suitable sealing material in use for fuel cell of solid oxide and preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1660954A true CN1660954A (en) | 2005-08-31 |
| CN1285696C CN1285696C (en) | 2006-11-22 |
Family
ID=35010513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100135823A Expired - Fee Related CN1285696C (en) | 2004-02-25 | 2004-02-25 | High temperature suitable sealing material in use for fuel cell of solid oxide and preparing method |
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|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418248C (en) * | 2006-09-01 | 2008-09-10 | 清华大学 | Sealing material used for solid oxide fuel battery and method for making same |
| CN103570372A (en) * | 2012-07-24 | 2014-02-12 | 中国科学院大连化学物理研究所 | Glass-ceramic sealing material for medium-low-temperature solid oxide fuel cells and preparation method thereof |
| 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 |
| WO2019212273A1 (en) * | 2018-05-04 | 2019-11-07 | 엘지전자 주식회사 | Sealing glass composition and solid oxide fuel cell using same |
-
2004
- 2004-02-25 CN CNB2004100135823A patent/CN1285696C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418248C (en) * | 2006-09-01 | 2008-09-10 | 清华大学 | Sealing material used for solid oxide fuel battery and method for making same |
| CN103570372A (en) * | 2012-07-24 | 2014-02-12 | 中国科学院大连化学物理研究所 | Glass-ceramic sealing material for medium-low-temperature solid oxide fuel cells and preparation method thereof |
| CN103570372B (en) * | 2012-07-24 | 2015-07-15 | 中国科学院大连化学物理研究所 | Glass-ceramic sealing material for medium-low-temperature solid oxide fuel cells and preparation method thereof |
| 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 |
| WO2019212273A1 (en) * | 2018-05-04 | 2019-11-07 | 엘지전자 주식회사 | Sealing glass composition and solid oxide fuel cell using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1285696C (en) | 2006-11-22 |
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