JP5608813B2 - 固体酸化物形燃料電池単位セルの製造方法 - Google Patents
固体酸化物形燃料電池単位セルの製造方法 Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims description 52
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000007787 solid Substances 0.000 title claims description 8
- 239000003792 electrolyte Substances 0.000 claims description 61
- 238000000034 method Methods 0.000 claims description 22
- 238000010345 tape casting Methods 0.000 claims description 16
- 239000010409 thin film Substances 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 6
- 238000010344 co-firing Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 238000007650 screen-printing Methods 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 229910021526 gadolinium-doped ceria Inorganic materials 0.000 description 42
- 230000000052 comparative effect Effects 0.000 description 23
- 238000006243 chemical reaction Methods 0.000 description 18
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 229910000480 nickel oxide Inorganic materials 0.000 description 8
- 230000010287 polarization Effects 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 238000003411 electrode reaction Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011195 cermet Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011808 electrode reactant Substances 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910002204 La0.8Sr0.2MnO3 Inorganic materials 0.000 description 1
- QBYHSJRFOXINMH-UHFFFAOYSA-N [Co].[Sr].[La] Chemical compound [Co].[Sr].[La] QBYHSJRFOXINMH-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910021525 ceramic electrolyte Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
- H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
- H01M4/9033—Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
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- H01M4/88—Processes of manufacture
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- H01M4/88—Processes of manufacture
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8882—Heat treatment, e.g. drying, baking
- H01M4/8885—Sintering or firing
- H01M4/8889—Cosintering or cofiring of a catalytic active layer with another type of layer
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- H01M4/90—Selection of catalytic material
- H01M4/9041—Metals or alloys
- H01M4/905—Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC
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- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
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- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
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Description
すなわち、燃料電池は、酸化物電解質によって酸化剤(例えば、酸素)と気相燃料(例えば、水素)を電気化学的に反応させることによって直流電気を生産するエネルギー転換装置であって、外部から燃料と空気を供給して連続的に電気を生産するという点において従来の電池と差がある。
前記SOFCは、固体状のセラミック電解質を使用して約1000℃の高温で燃料(水素)の酸化反応および酸素(空気)の還元反応による電気化学反応によって電気と水を生産するが、したがって燃料電池のうちで最も発電効率が高く、高温の排気ガスを利用した熱併合発電が容易であるという長所がある。
一般的に、前記SOFCの電解質は、イットリアが安定化したジルコニア(8YSZ)が主に使用され、燃料極は主にニッケルオキサイド(NiO)とイットリアが安定化したジルコニア(8YSZ)が混合したサーメット(NiO/8YSZ)が使用され、さらに、空気極は、一般的に、LSM系(例えば、La0.8Sr0.2Mno3)にYSZ粉末を混合して使用される。
ただし、SOFCの運転温度を相対的に下げれば、電解質のオーム抵抗および電極の分極抵抗が増加するようになり、燃料電池の出力性能低下の原因となる。
また、CeScSZ電解質およびLSCF空気極の間で発生する異常反応を効率的に制御し、中低温でも高出力を得ることができるという長所がある。
図1は、本発明の実施形態に係るSOFC単位セルの構造を示す図である。図2は、本発明の実施形態に係るSOFC単位セルの製造過程を示すフローチャートである。
先ず、前記燃料極支持体10のスラリーを生成するために、NiOおよび1CeScSZの比率を60:40に維持し、加工剤、バインダ、および分散剤などの添加剤を含んでスラリー(インク)を生成する(S10)。
そして、前記GDCバッファ層40を前記電解質層30上に積層する(S50)。
Claims (1)
- NiOおよびCeScSZを60:40の比率で含むスラリーを生成するステップと、
テープキャスティングによって燃料極シートを製造するステップと、
前記燃料極シートを積層するステップと、
Ni−CeScSZ燃料極層を製造するステップと、
CeScSZ電解質層を製造して前記Ni−CeScSZ燃料極層に積層するステップと、
GDCバッファ層を製造して 前記CeScSZ電解質層に積層するステップと、
前記Ni−CeScSZ燃料極層に前記CeScSZ電解質層および前記GDCバッファ層を積層した後にラミネーションを実施するステップと、
前記Ni−CeScSZ燃料極層、前記CeScSZ電解質層、前記GDCバッファ層の集合体に対してか焼および同時焼成を実施するステップと、
LSCF空気極層を製造するステップとを含み、
前記Ni−CeScSZ燃料極層、前記CeScSZ電解質層、前記GDCバッファ層は、テープキャスティング方法によって製造され、
前記GDCバッファ層を製造するステップは、
GDC粉末および添加剤を40:60の比率で含むスラリーを生成するステップと、
テープキャスティングによって1〜10μmの薄膜に製造するステップとを含み、
前記同時焼成は、1300〜1500℃で実施され、
前記か焼は、1000℃で行われ、
前記空気極層は、スクリーンプリンティング方法によって前記GDCバッファ層上に塗布されることを特徴とする固体酸化物形燃料電池単位セルの製造方法。
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KR1020100060657A KR101177621B1 (ko) | 2010-06-25 | 2010-06-25 | 고체산화물 연료전지 단위셀의 제조방법 |
KR10-2010-0060657 | 2010-06-25 | ||
PCT/KR2011/004632 WO2011162571A2 (ko) | 2010-06-25 | 2011-06-24 | 고체산화물 연료전지 단위셀의 제조방법 |
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JP5608813B2 true JP5608813B2 (ja) | 2014-10-15 |
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JP (1) | JP5608813B2 (ja) |
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WO2015103448A2 (en) | 2013-12-31 | 2015-07-09 | Flir Systems, Inc. | Techniques for device attachment with dual band imaging sensor |
KR101274809B1 (ko) * | 2012-02-27 | 2013-06-13 | 한국생산기술연구원 | 중저온 운전에서 출력 성능이 향상된 고체산화물 연료전지 설계 및 제조기술 |
CN103567454B (zh) * | 2013-10-28 | 2015-07-08 | 南昌航空大学 | 一种利用高速混合-内核爆破制备Ni-BaO-GDC纳米SOFC阳极的方法 |
KR101660365B1 (ko) * | 2014-07-30 | 2016-09-28 | 창원대학교 산학협력단 | 스택 효율과 안정성이 개선된 고체산화물 연료전지의 사용방법 |
KR20170120732A (ko) * | 2016-04-21 | 2017-11-01 | 한국에너지기술연구원 | 원통형 sofc를 이용한 가압운전 시스템 |
KR102169225B1 (ko) * | 2016-08-08 | 2020-10-23 | 모리무라 에스오에프씨 테크놀로지 가부시키가이샤 | 전기 화학 반응 단셀 및 전기 화학 반응 셀 스택 |
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CN116960420B (zh) * | 2023-07-05 | 2024-02-06 | 中国矿业大学 | 一种双层直孔结构的可逆固体氧化物电池的制备方法 |
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EP2355217B1 (en) * | 2008-10-29 | 2016-10-26 | Kyocera Corporation | Fuel battery cell, fuel battery module, fuel battery device and method for manufacturing fuel battery cell |
-
2010
- 2010-06-25 KR KR1020100060657A patent/KR101177621B1/ko active IP Right Grant
-
2011
- 2011-06-24 US US13/702,653 patent/US20130078551A1/en not_active Abandoned
- 2011-06-24 JP JP2013515276A patent/JP5608813B2/ja active Active
- 2011-06-24 WO PCT/KR2011/004632 patent/WO2011162571A2/ko active Application Filing
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KR101177621B1 (ko) | 2012-08-27 |
WO2011162571A2 (ko) | 2011-12-29 |
WO2011162571A3 (ko) | 2012-03-08 |
KR20120000337A (ko) | 2012-01-02 |
US20130078551A1 (en) | 2013-03-28 |
JP2013532364A (ja) | 2013-08-15 |
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