JPS6316567A - Electrolyte matrix for fused carbonate fuel cell - Google Patents
Electrolyte matrix for fused carbonate fuel cellInfo
- Publication number
- JPS6316567A JPS6316567A JP61159137A JP15913786A JPS6316567A JP S6316567 A JPS6316567 A JP S6316567A JP 61159137 A JP61159137 A JP 61159137A JP 15913786 A JP15913786 A JP 15913786A JP S6316567 A JPS6316567 A JP S6316567A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- electrolyte
- zro2
- fuel cell
- mixed
- 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
- 239000003792 electrolyte Substances 0.000 title claims abstract description 36
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 29
- 239000000446 fuel Substances 0.000 title claims abstract description 13
- 239000011159 matrix material Substances 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 19
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 23
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 239000012779 reinforcing material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 46
- 238000010248 power generation Methods 0.000 abstract description 9
- 239000011812 mixed powder Substances 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 3
- 229910052744 lithium Inorganic materials 0.000 abstract 3
- 229910002076 stabilized zirconia Inorganic materials 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 description 11
- 239000000470 constituent Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000006138 lithiation reaction Methods 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFVLUOAHQIVABZ-UHFFFAOYSA-N Iodofenphos Chemical compound COP(=S)(OC)OC1=CC(Cl)=C(I)C=C1Cl LFVLUOAHQIVABZ-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 102000054765 polymorphisms of proteins Human genes 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- H01M8/0289—Means for holding the electrolyte
- H01M8/0295—Matrices for immobilising electrolyte melts
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は溶融炭酸塩燃料電池用電解質マトリックスの改
良に関する。DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION Field of Industrial Application This invention relates to improvements in electrolyte matrices for molten carbonate fuel cells.
（従来の技術）
近年開発が進められている溶融炭酸塩燃料電池は、アル
カリ炭酸塩からなる電解質を高温下で溶融状態にし、電
極反応を起こさせるもので、リン酸型、固体電解質型等
の他の燃料電池に比べ、電極反応が起こりやすく、発電
熱効率が高いという利点を有する。(Prior art) Molten carbonate fuel cells, which have been under development in recent years, melt an electrolyte made of alkali carbonate at high temperatures to cause an electrode reaction. Compared to other fuel cells, it has the advantage that electrode reactions occur more easily and the heat generation efficiency is higher.
こうした溶融炭酸塩燃料電池の主要部は、通常、電解質
となるアルカリ炭酸塩とセラミックス系保持材とを混合
し平板状に成形した電解質マトリックスの両面にニッケ
ル合金等のガス拡散種を密接有している。The main part of such a molten carbonate fuel cell is usually an electrolyte matrix formed into a flat plate by mixing an alkali carbonate as an electrolyte with a ceramic holding material, and having gas diffusion species such as nickel alloy closely attached to both sides of the electrolyte matrix. There is.
・従来、保持材としては、例えば粒径０，１〜０．５譚
、比表面積１０〜２５ｍ／Ｑのγ相を主な構成相とする
ＬｉＡβ０２が用いられている。このγ−ＬｉＡｎＯ２
は溶融炭酸塩中では比較的安定な化合物であるが、Ｌｉ
ＡｆｆｉＯ２はγ相以外にもα相、α相の多形を有し、
長時間溶融炭酸塩と反応すると、構成相の変化が生じる
場合がある。特に、α相への転移が生じると、比表面積
が著しく低下するため、電解質保持特性が劣化する。- Conventionally, as a holding material, LiAβ02 whose main constituent phase is a γ phase with a particle size of 0.1 to 0.5 m/Q and a specific surface area of 10 to 25 m/Q has been used. This γ-LiAnO2
is a relatively stable compound in molten carbonate, but Li
In addition to the γ phase, AffiO2 has α phase and α phase polymorphisms,
Reactions with molten carbonates over long periods of time may result in changes in the constituent phases. In particular, when the transition to the α phase occurs, the specific surface area decreases significantly, resulting in deterioration of electrolyte retention properties.
保持材の電解質保持特性が劣化すると、電解質の漏洩、
揮散が生じ、内部抵抗を増加させるだけでなく、電解質
の局部的な散逸に伴うクロスオーバーの原因ともなり、
発電特性を著しく低下させるという問題がある。If the electrolyte retention properties of the retaining material deteriorate, electrolyte leakage,
Volatilization occurs, which not only increases internal resistance but also causes crossover due to local dissipation of electrolyte.
There is a problem in that the power generation characteristics are significantly deteriorated.
一方、溶融炭酸塩に対して比較的安定な物質としてＺｒ
Ｏ２が知られており、特にＹＺ ０３、ＣａＯ等の添加
により安定化又は部分安定化されたものは溶融炭酸塩に
対する長期にわたる安定性が立証されている。しかし、
ＺｒＯ２や部分安定化Ｚｒｏ２は溶融炭１！ｔ １１Ａ
に対するぬれ性に乏しいため、やはり電解質１呆持特性
が悪く、保持材として用いることはできない。On the other hand, Zr is a relatively stable substance against molten carbonate.
O2 is known, and long-term stability against molten carbonates has been demonstrated, especially those stabilized or partially stabilized by the addition of YZ03, CaO, etc. but,
ZrO2 and partially stabilized Zro2 are molten coal 1! t 11A
Since it has poor wettability with respect to electrolytes, it also has poor electrolyte retention properties and cannot be used as a retaining material.
（発明が解決しようとする問題点）
本発明は上記問題点を解決するためになされたものであ
り、電解質保持特性が劣化しない保持ｄｉ用い、長時間
にわたって良好な発電特性を得ることができる溶融炭酸
増燃Ｆｌ電池用電解質７トリツクスを提供することを目
的とする。(Problems to be Solved by the Invention) The present invention has been made in order to solve the above problems, and uses a retention di that does not deteriorate electrolyte retention characteristics, and a molten metal that can obtain good power generation characteristics over a long period of time. The purpose of the present invention is to provide an electrolyte 7 trix for carbon dioxide enriched Fl batteries.
［発明の構成］
（問題点を解決するための手段と作用）本発明の溶融炭
酸塩燃料電池用電解質７トリツクスは、電解質となるア
ルカリ炭酸塩粉末に、保持材として部分安定化ジルコニ
アをリチウム化した粉末を混合し、これらを成形したこ
とを特徴とするものである。[Structure of the Invention] (Means and Effects for Solving the Problems) The molten carbonate fuel cell electrolyte 7trix of the present invention includes lithiated partially stabilized zirconia as a holding material in an alkali carbonate powder serving as an electrolyte. It is characterized by mixing powders and molding them.
保持材としてのＬｉＡｆｆｉＯ２やＺｒＯ２の問題点か
ら明らかなように、保持材に要求される特性としては、
■溶融炭Ｍ塩に対して長時間化学的に安定であること、
■溶融炭酸塩に対するぬれ性に優れていること、という
２点が挙げられる。本発明者らは、上記２つの特性を満
足する材料について種々検討した。As is clear from the problems with LiAffiO2 and ZrO2 as retaining materials, the characteristics required of retaining materials are:
■ Be chemically stable for a long time against molten carbon M salt,
(2) It has excellent wettability to molten carbonate. The present inventors have conducted various studies on materials that satisfy the above two characteristics.
その結果、まずＺｒＯ２や部分安定化Ｚｒｏ２をＬｉＯ
ＨやＬｉ２ＣＯ３と反応させることによりリチウム化し
たものは、溶融炭酸塩に対するめれ性が改善されること
が確認された。As a result, we first converted ZrO2 or partially stabilized Zro2 to LiO2.
It was confirmed that lithium-formed materials by reacting with H or Li2CO3 have improved penetrability to molten carbonate.
ところが、ＺｒＣ２（単斜晶）を出発原料としてこれを
リチウム化することにより生成されるＬ！２２ｒｏｑは
、溶融炭酸塩との反応により部分的に原料であるＺｒＯ
２（単斜晶）に相転移することが判明した。ＺｒＯ２（
単斜晶）は、上述したように溶融炭酸塩に対するぬれ性
が悪いので、ｌ ｉ２２ｒＯａは保持材として適当な材
料ではない。However, L! produced by lithiation of ZrC2 (monoclinic) as a starting material! 22 roq is partially converted from raw material ZrO by reaction with molten carbonate.
2 (monoclinic). ZrO2(
monoclinic crystal) has poor wettability to molten carbonate as described above, so l i22rOa is not a suitable material as a holding material.
一方、部分安定化ＺｒＯ２、例えばＹＺ ０３部分安定
化７ｒＯ２は、ＺｒＯ２（単斜晶）とＹｏ、＋ｓ Ｚ
ｒｏ、ｇｓ ０ｔｏ３（以下ＹＺと記す）とを構成
相とし、ＺｒＯ２添加量の増加に伴ってＹＺの比率が増
加する。この部分安定化ＺｒＯ２をリチウム化すること
により得られる化合物は、Ｌｉ２（Ｙｘ Ｚ ｒ １−
ｘ ） ０３ （以下、ＬＺ（Ｙ）と記す）で示され
る。そして、このＬＺ （Ｙ）は、溶融炭酸塩との反応
により若干のＹＺを生成することはあるが、ＺｒＯ２（
単斜晶）の生成は著しく低減化され、全体的には低温相
（ＺｒＯ２（単斜晶）及びＹＺ）の生成は抑制される。On the other hand, partially stabilized ZrO2, for example YZ 03 partially stabilized 7rO2, is composed of ZrO2 (monoclinic) and Yo, +s Z
The constituent phases are ro, gs 0to3 (hereinafter referred to as YZ), and the ratio of YZ increases as the amount of ZrO2 added increases. The compound obtained by lithiation of this partially stabilized ZrO2 is Li2(Yx Z r 1-
x ) 03 (hereinafter referred to as LZ(Y)). Although this LZ (Y) may generate some YZ by reaction with molten carbonate, ZrO2 (
The production of monoclinic crystals is significantly reduced, and the production of low-temperature phases (ZrO2 (monoclinic crystals) and YZ) is suppressed overall.
また、低温相は、はとんど溶融炭酸塩との反応の初期段
階で生じ、その後は構成比がほとんど変化せずＬＺ （
Ｙ）が安定に存在する。このことは、ＹＺ ０３以外の
ＣａＯ等で部分安定化したＺｒＯ２を用いた場合でも同
様である。In addition, the low-temperature phase mostly occurs at the initial stage of the reaction with molten carbonate, and after that the composition ratio hardly changes and LZ (
Y) exists stably. This is the same even when ZrO2 partially stabilized with CaO or the like other than YZ 03 is used.
以上のような部分安定化ＺｒＯ２をリチウム化した粉末
を保持材として用いれば、長期間にわたって電解質保持
特性が維持され、発電特性の劣化の少ない溶融炭酸塩燃
料電池用電解質マトリックスを提供することができる。If the above-mentioned partially stabilized ZrO2 lithiated powder is used as a holding material, it is possible to provide an electrolyte matrix for a molten carbonate fuel cell that maintains electrolyte holding properties over a long period of time and exhibits little deterioration in power generation properties. .
なお、本発明に係る電解質マトリックスは、アルカリ炭
酸塩粉末、部分安定化ＺｒＯ２をリチウム化した粉末の
ほかに、補強材として部分安定化ＺｒＯ２をリチウム化
したｌＢＮを混合してもよい。In addition to the alkali carbonate powder and the lithiated powder of partially stabilized ZrO2, the electrolyte matrix according to the present invention may contain IBN, which is partially stabilized ZrO2 lithiated, as a reinforcing material.
また、部分安定化ＺｒＯ２をリチウム化した粉末や繊維
が化学的に安定であるという要求を満たすためには、Ｚ
ｒＣ）＋を部分安定化するための酸化物の添加量が適当
であることが必要であり、例えばＹ２Ｏ３の添加量は０
．５〜５モル％であることが望ましい。In addition, in order to satisfy the requirement that partially stabilized ZrO2 lithiated powders and fibers be chemically stable, ZrO2
It is necessary to add an appropriate amount of oxide to partially stabilize rC)+, for example, the amount of Y2O3 added is 0.
．． The content is preferably 5 to 5 mol%.
（実施例） 以下、本発明の詳細な説明する。(Example) The present invention will be explained in detail below.
まず、下記表に示すようにＹ２Ｏ３添加量が異なり、構
成相の比率が異なる５梗類の部分安定化Ｚｒ○２ （以
下、ＰＳＺと記す）粉末を出発原料とし、これらとＬｉ
ｏＨ−Ｈ２Ｏとをモル比でそれぞれ１：２の割合で混合
した。次に、これらの混合粉をそれぞれ高純度アルミナ
容器に充填し、大気中、１１００℃において１０時間熱
処理してリチウム化を行ない、保持材を合成した。合成
された保持材の構成相の比率を下記表に示す。First, as shown in the table below, partially stabilized Zr○2 (hereinafter referred to as PSZ) powders of pentaphylloids with different addition amounts of Y2O3 and different ratios of constituent phases are used as starting materials, and these and Li
oH-H2O were mixed at a molar ratio of 1:2. Next, each of these mixed powders was filled into a high-purity alumina container and heat-treated in the atmosphere at 1100° C. for 10 hours to perform lithiation, thereby synthesizing a holding material. The ratio of the constituent phases of the synthesized holding material is shown in the table below.
つづいて、各保持材をボールミルを用いて粉砕し、粒径
０．５ｓ以下の微粉末とした。更に、各保持材粉末とア
ルカリ炭酸塩粉末とを、保持材：Ｌｉ２ＣＯ３：に２
ＣＯ３＝４０：２８：３２の重畠比で混合した。これら
混合粉４０Ｑをそれぞれ１０ｎ角の金型に充填し、４６
０℃において３００ ｋｉｌｌ／α２の圧力を加え、１
時間保持してホットプレス成形した。これによって、厚
み約１．５願、見掛は密度２．６０／α３の電解質マト
リックスが得られた。Subsequently, each holding material was ground using a ball mill to obtain fine powder with a particle size of 0.5 s or less. Furthermore, each retaining material powder and alkali carbonate powder were added to the retaining material: Li2CO3.
They were mixed at a Shigehata ratio of CO3=40:28:32. Fill 40Q of these mixed powders into 10n square molds,
Apply a pressure of 300 kill/α2 at 0°C,
It was held for a period of time and hot press molded. As a result, an electrolyte matrix having a thickness of about 1.5 mm and an apparent density of 2.60/α3 was obtained.
次いで、得られた各電解質マトリックスを４Ｉ：ｌＲ角
に切断し、その両面を多孔質Ｎ１電極で挟んで溶融炭酸
塩燃料電池の単位電池を構成した。各単位電池について
、アノード側にＨ２ガス及びＣ。Next, each of the obtained electrolyte matrices was cut into a 4I:lR square, and both sides thereof were sandwiched between porous N1 electrodes to construct a unit cell of a molten carbonate fuel cell. For each unit cell, H2 gas and C are placed on the anode side.
ガスを、カソード側に空気及びＣＯ２ガスをそれぞれ供
給して３００時間の発電試験を行なった。A power generation test was conducted for 300 hours by supplying air and CO2 gas to the cathode side, respectively.
試験後、それぞれの単位電池からＮｗＩ質マトリックス
を取出し、保持材の構成相及び電解質の保持率を調べた
。その結果を下記表に示す。After the test, the NwI matrix was taken out from each unit cell, and the constituent phases of the holding material and the retention rate of the electrolyte were examined. The results are shown in the table below.
なお、下記表には比較例として、保持材にＬｉＡｌ２Ｏ
２を用い、上記と全く同様な試験を行なった場合の結果
も併記する。 ゛
上記表から明らかなように、部分安定化ＺｒＯ２（ＰＳ
Ｚ） はＮｃｌ 〜Ｎｎ５（７）ＸＦｉｋ：、Ｙ２Ｏ３
添加員が増加するにしたがって、その構成相はＹＺの比
率が増加している。これらＰＳＺをリチウム化して合成
された保持材では、ＮＱ １〜恥５の順にＬＺ（Ｙ）の
比率が減少している。そして、発電試験後の保持材のＬ
Ｚ（Ｙ）の比率と電解質の保持率とはほぼ対応しており
、ＬＺ （Ｙ）の比率が＾いはと電解質の保持率が高く
なっている。ただし、ＰＳＺ中のＹ２０３の添加量が少
ない場合（ｍｌ）には、発電試験後にＺｒＯ２（単斜晶
）が多（生成し、ぬれ性が悪くなるため電解質の保持率
が低下している。In addition, the table below shows LiAl2O as a holding material as a comparative example.
The results of a test completely similar to the above using 2 are also listed.゛As is clear from the above table, partially stabilized ZrO2 (PS
Z) is Ncl ~Nn5(7)XFik:,Y2O3
As the number of additives increases, the proportion of YZ in its constituent phase increases. In these holding materials synthesized by lithiumizing PSZ, the ratio of LZ(Y) decreases in the order of NQ 1 to Shame 5. Then, L of the holding material after the power generation test
The ratio of Z(Y) and the electrolyte retention rate almost correspond, and the higher the ratio of LZ(Y), the higher the electrolyte retention rate. However, when the amount (ml) of Y203 added in PSZ is small, a large amount of ZrO2 (monoclinic) is formed after the power generation test, resulting in poor wettability and a decrease in electrolyte retention.
また、上記表から、従来のＬｉＡｌ２Ｏ２よりも優れた
電解質保持特性を得るためには、ＰＳＺ中のＹ２０３添
加量は０，５〜５モル％が適当であることがわかる。Moreover, from the above table, it can be seen that in order to obtain electrolyte retention characteristics superior to conventional LiAl2O2, the appropriate amount of Y203 added in PSZ is 0.5 to 5 mol%.
なお、上記実施例ではアルカリ炭酸塩粉末と部分安定化
ＺｒＯ２をリチウム化した粉末とで電解質マトリックス
を構成したが、これらのほかに補強材として部分安定化
Ｚｒ○２をリチウム化した繊維を混合してもよい。In the above example, the electrolyte matrix was composed of an alkali carbonate powder and a lithiated powder of partially stabilized ZrO2, but in addition to these, fibers made of lithiated partially stabilized ZrO2 were mixed as a reinforcing material. You can.
［発明の効果］
以上詳述したように本発明によれば、電解質保持特性が
劣化しない保持材を用い、長時間にわたって良好な発電
特性を得ることができる溶融炭酸塩燃料電池用電解質マ
トリックスを提供できるものである。[Effects of the Invention] As detailed above, the present invention provides an electrolyte matrix for a molten carbonate fuel cell that uses a retaining material whose electrolyte retention properties do not deteriorate and can provide good power generation properties over a long period of time. It is possible.
Claims (3)
て部分安定化ジルコニアをリチウム化した粉末を混合し
、これらを成形したことを特徴とする溶融炭酸塩燃料電
池用電解質マトリックス。(1) An electrolyte matrix for a molten carbonate fuel cell, characterized in that an alkali carbonate powder serving as an electrolyte is mixed with a lithiated powder of partially stabilized zirconia as a holding material, and the mixture is molded.
した繊維を混合したことを特徴とする特許請求の範囲第
１項記載の溶融炭酸塩燃料電池用電解質マトリックス。(2) The electrolyte matrix for a molten carbonate fuel cell according to claim 1, wherein fibers made of lithiated partially stabilized zirconia are mixed as a reinforcing material.
定化ジルコニアを用いたことを特徴とする特許請求の範
囲第１項又は第２項記載の溶融炭酸塩燃料電池用電解質
マトリックス。(3) The electrolyte matrix for a molten carbonate fuel cell according to claim 1 or 2, characterized in that partially stabilized zirconia to which 0.5 to 5 mol % of yttria is added is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159137A JP2585226B2 (en) | 1986-07-07 | 1986-07-07 | Electrolyte matrix for molten carbonate fuel cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159137A JP2585226B2 (en) | 1986-07-07 | 1986-07-07 | Electrolyte matrix for molten carbonate fuel cells |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6316567A true JPS6316567A (en) | 1988-01-23 |
| JP2585226B2 JP2585226B2 (en) | 1997-02-26 |
Family
ID=15687057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61159137A Expired - Fee Related JP2585226B2 (en) | 1986-07-07 | 1986-07-07 | Electrolyte matrix for molten carbonate fuel cells |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2585226B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682583A (en) * | 1979-12-10 | 1981-07-06 | Hitachi Ltd | Fuel cell |
| JPS6035468A (en) * | 1983-08-03 | 1985-02-23 | Agency Of Ind Science & Technol | Electrolyte matrix for fuel cell |
| JPS60151976A (en) * | 1984-01-20 | 1985-08-10 | Fuji Electric Corp Res & Dev Ltd | Manufacturing of electrolyte holding plate |
-
1986
- 1986-07-07 JP JP61159137A patent/JP2585226B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682583A (en) * | 1979-12-10 | 1981-07-06 | Hitachi Ltd | Fuel cell |
| JPS6035468A (en) * | 1983-08-03 | 1985-02-23 | Agency Of Ind Science & Technol | Electrolyte matrix for fuel cell |
| JPS60151976A (en) * | 1984-01-20 | 1985-08-10 | Fuji Electric Corp Res & Dev Ltd | Manufacturing of electrolyte holding plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2585226B2 (en) | 1997-02-26 |
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