CN102637888B - 燃料电池固态电解质结构 - Google Patents
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- 239000000446 fuel Substances 0.000 title claims abstract description 53
- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 17
- 239000003792 electrolyte Substances 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 46
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- H01M8/10—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
- H01M8/1226—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 characterised by the supporting layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/8626—Porous electrodes characterised by the form
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- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
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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
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- 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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- 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
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Abstract
本发明为一种燃料电池固态电解质结构,包括有阳极、阴极、电解质与至少两气体流道。其中该阴极系对应于该阳极设置;该电解质系设置于该阳极与该阴极之间;该等气体流道系分别设置于该阳极与该阴极旁且于该电解质的两侧,该等气体流道的末端包括有一转折部与一相连该转折部且封闭该气体流道的末端部,且该气体流道末端处内部形成有一连续曲面。藉此气体流道末端结构设计,本发明可增加燃料电池电解质结构的制作良率,并可延长其使用寿命。
Description
技术领域
本发明系一种燃料电池固态电解质结构,尤指一种可增加燃料电池的制作良率,并可延长其使用寿命的燃料电池固态电解质结构。
背景技术
燃料电池(Fuel Cell, FC)具有较高的能源转换效率,亦不会造成任何的污染,也因此在新能源的领域中扮演着重要的角色。燃料电池主要将还原性燃料(例如:氢气)与氧化性气体(例如:氧气)产生的标准电位差,透过功能性电极与电解质材料所构成的回路,进行自发性氧化还原反应,藉电化学的原理,有效地将化学能转换为电能,总反应的生成物可为水或二氧化碳(CO2),并无任何造成污染的废料产生,符合环保的要求。
燃料电池依电解质的不同离子传导的功能,大致上被分为五大类。其中固态氧化物燃料(Solid Oxide Fuel Cell,简称 SOFC)电池,亦称为陶瓷燃料电池,因其高反应速率、不需白金催化剂,可使用燃料种類多,经反应所产生的高温蒸汽,可进行汽-电共生,效率达80%以上,是最具潜力的燃料电池。
在燃料电池的使用过程中,含一氧化碳(CO)与氢气(H2)的燃料经气体流道往阳极电极表面扩散,流道尽头若为直角,转折处容易有应力集中现象,一旦破损,燃料混合氧气后容易产生爆炸,考虑存在此危险,气体压力差不能过高,同样的,阴极所在的流道亦然,脆弱点亦可能因过大的氧源压力,进而崩解或破裂。
而在制作过程中,电池两电极之间夹着电解质,这种三明治结构的制作过程,若在流道尽头的转角,一般为直角,容易因各层材料间的性质差异,在干燥、烧结和热涨冷缩过程中,产生分层、裂痕和内应力,因而,在此曲线反转区是最容易产生制程缺陷。
是以,要如何解决上述习用的问题与缺失,即为本发明的发明人与从事此行业的相关厂商所亟欲研究改善的方向所在者。
发明内容
故,本发明的发明人有鉴于上述缺失,乃搜集相关资料,经由多方评估及考虑,并以从事于此行业累积的多年经验,经由不断试作及修改,始设计出此种可增加燃料电池的制作良率,并可延长其使用寿命的燃料电池固态电解质结构发明专利者。
本发明的主要目的在于提供一种制作良率高、寿命长的燃料电池固态电解质结构。
为了达到上述的目的,本发明包括有阳极、阴极、电解质与至少两气体流道。其中该阴极系对应于该阳极设置;该电解质系设置于该阳极与该阴极之间;该气体流道系分别设置于该阳极与该阴极旁且于该电解质的两侧,该等气体流道的末端包括有一转折部与一相连该转折部且封闭该气体流道的末端部,且该气体流道末端处内部形成有一连续曲面。
由于气体流道的末端包括有转折部与一相连该转折部且封闭该气体流道的末端部,且该气体流道末端处内部形成有一连续曲面,俾藉由上述结构,本发明燃料电池在使用过程中,当燃料经气体流道往阳极、阴极电极表面扩散时,可以有效的分散应力,避免气体流道因为两边气体压力差过高,而产生过大的氧源压力,进而崩解或破裂;以及,燃料电池制作过程,在干燥、烧结和热涨冷缩过程中,可以有效避免产生分层、裂痕和降低内应力。本发明确实可以增加燃料电池的制作良率,并可延长其使用寿命。
附图说明
图1系为本发明较佳实施例的立体图。
图2系为本发明较佳实施例的剖视图。
图3系为本发明较佳实施例的实施示意图。
图4系为本发明再一较佳实施例的剖视图。
【主要组件符号说明】
101阳极
102阴极
10电解质
1气体流道
11转折部
12末端部
13连续曲面。
具体实施方式
为达成上述目的及功效,本发明所采用的技术手段及构造,兹绘图就本发明较佳实施例详加说明其特征与功能如下,俾利完全了解。
请参阅图1、图2与图3所示,系为本发明较佳实施例的立体图与剖视图,由图中可清楚看出,本发明燃料电池包括有:
阳极101;
阴极102,系对应于该阳极101设置;
电解质10,系设置于该阳极101与该阴极102之间;
至少两气体流道1,该气体流道1可流通还原性燃料(例如:氢气、甲烷和瓦斯其中之一或其组合)与氧化性气体(例如:氧气或空气),系分别设置于该阳极101与该阴极102旁,且于该电解质10的两侧,该等气体流道1的末端包括有一转折部11与一相连该转折部11,且封闭该气体流道1的末端部12,且该气体流道1末端处内部形成有一连续曲面13,该气体流道1的末端部12外表面为半球状。
其中该连续曲面13包括二次曲面、弧形曲面、球形曲面或是抛物球面,其曲面的斜率为连续的数值,无奇点(single point)产生。
其中,燃料电池依电解质10的不同离子传导的功能,大致上被分为五大类。本发明实施例即为固态氧化物燃料(Solid Oxide Fuel Cell;简称 SOFC)电池,因为阴、阳极及电解层电阻率不同,而各材料电阻率随厚度增加而上升,因此,SOFC 单电池组装具有下列三种型态:电解质支撑单电池(electrolyte supported cell)、阴极支撑单电池(cathode supported cell)及阳极支撑单电池(anode supported cell)。因阳极导电率比阴极及电解质导电率高出许多,如以阳极为支撑材,将可使电池内电阻显著降低。但此型固态氧化物燃料电池电解质薄膜制备困难,因此进入门坎较高。
请参阅图4所示,系为本发明再一较佳实施例的剖视图,由图中可清楚看出,本发明的气体流道1可为交叉设置,其中一气体流道1为流通还原性燃料,另一气体流道1为流通氧化性气体,其余结构相同,不再赘述。
请参阅全部附图所示,相较于习用技术,本发明具有以下优点:
由于本发明的气体流道1末端包括有一转折部11与一相连该转折部11且封闭该气体流道1的末端部12,且该气体流道1末端处内部形成有一连续曲面13,可以有效的增加气体流道1末端的强度,在燃料电池使用过程中,藉由此结构,当燃料经气体流道1往阳极101、阴极102电极表面扩散时,可以有效的分散应力,避免气体流道1因为气体压力差过高而产生过大的氧源压力,进而崩解或破裂;而于燃料电池制作过程,在干燥、烧结和热涨冷缩过程中,藉由此结构,可以有效避免产生分层、裂痕和降低内应力,本发明确实可以增加燃料电池的制作良率,并可延长其使用寿命。
再者,该末端部12外表面可为半球状,同样的可以达到增加气体流道1末端强度的效果。
透过上述的详细说明,即可充分显示本发明的目的及功效上均具有实施的进步性,极具产业的利用性价值,且为目前市面上前所未见的新发明,完全符合发明专利要件,爰依法提出申请。唯以上所述着仅为本发明的较佳实施例而已,当不能用以限定本发明所实施的范围。即凡依本发明专利范围所作的均等变化与修饰,皆应属于本发明专利涵盖的范围内,谨请 贵审查委员明鉴,并祈惠准,是所至祷。
Claims (10)
1.一种燃料电池固态电解质结构,包括有:
一阳极;
一阴极,对应于该阳极设置;
一电解质,设置于该阳极与该阴极之间;
至少两个气体流道,分别设置于该阳极与该阴极旁且于该电解质的两侧,所述至少两个气体流道的末端为包括有一转折部与一相连该转折部且封闭所述气体流道的末端部,且所述气体流道末端处内部形成有一连续曲面,该连续曲面的斜率为连续的数值,无奇点产生。
2.如权利要求1所述的燃料电池固态电解质结构,其中所述至少两个气体流道的末端外表面为半球状。
3.如权利要求1所述的燃料电池固态电解质结构,其中该燃料电池为固态氧化物燃料电池。
4.如权利要求1所述的燃料电池固态电解质结构,其中所述气体流道可流通还原性燃料与氧化性气体。
5.如权利要求4所述的燃料电池固态电解质结构,其中该还原性燃料为氢气、甲烷和瓦斯其中之一或其组合,而该氧化性气体为氧气或空气。
6.如权利要求1所述的燃料电池固态电解质结构,其中所述气体流道可为交叉设置。
7.如权利要求1所述的燃料电池固态电解质结构,其中所述气体流道末端处内部形成的该连续曲面为一二次曲面。
8.如权利要求1所述的燃料电池固态电解质结构,其中所述气体流道末端处内部形成的该连续曲面为一弧形曲面。
9.如权利要求1所述的燃料电池固态电解质结构,其中所述气体流道末端处内部形成的该连续曲面为一球形曲面。
10.如权利要求1所述的燃料电池固态电解质结构,其中所述气体流道末端处内部形成的该连续曲面为一抛物球面。
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- 2012-04-16 JP JP2012092892A patent/JP2012230899A/ja active Pending
- 2012-04-19 CN CN201210115197.4A patent/CN102637888B/zh active Active
- 2012-04-19 EP EP12164846A patent/EP2515366A1/en not_active Withdrawn
- 2012-04-19 US US13/451,176 patent/US9692074B2/en active Active
- 2012-04-20 CA CA2775800A patent/CA2775800A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
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US9692074B2 (en) | 2017-06-27 |
EP2515366A1 (en) | 2012-10-24 |
TWI472090B (zh) | 2015-02-01 |
CN102637888A (zh) | 2012-08-15 |
US20120270140A1 (en) | 2012-10-25 |
JP2012230899A (ja) | 2012-11-22 |
TW201244242A (en) | 2012-11-01 |
CA2775800A1 (en) | 2012-10-22 |
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