JPH02120273A - Production of mgo-stabilized beta-alumina solid electrolyte tube - Google Patents
Production of mgo-stabilized beta-alumina solid electrolyte tubeInfo
- Publication number
- JPH02120273A JPH02120273A JP63275086A JP27508688A JPH02120273A JP H02120273 A JPH02120273 A JP H02120273A JP 63275086 A JP63275086 A JP 63275086A JP 27508688 A JP27508688 A JP 27508688A JP H02120273 A JPH02120273 A JP H02120273A
- Authority
- JP
- Japan
- Prior art keywords
- mgo
- alumina
- beta
- solid electrolyte
- electrolyte tube
- 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
- 229910000873 Beta-alumina solid electrolyte Inorganic materials 0.000 title claims abstract description 35
- 239000002043 β-alumina solid electrolyte Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 238000010304 firing Methods 0.000 claims description 20
- 239000007784 solid electrolyte Substances 0.000 abstract description 11
- 239000011734 sodium Substances 0.000 abstract description 9
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 6
- 229910052708 sodium Inorganic materials 0.000 abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 abstract description 6
- 239000011593 sulfur Substances 0.000 abstract description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 2
- 229910014103 Na-S Inorganic materials 0.000 abstract 2
- 229910014147 Na—S Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 1
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 9
- 239000000395 magnesium oxide Substances 0.000 description 8
- 229910001415 sodium ion Inorganic materials 0.000 description 5
- 239000006183 anode active material Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004952 furnace firing Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/39—Accumulators not provided for in groups H01M10/05-H01M10/34 working at high temperature
- H01M10/3909—Sodium-sulfur cells
- H01M10/3918—Sodium-sulfur cells characterised by the electrolyte
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ベータアルミナ固体電解質管の大規模焼成を
可能とするＭｇＯ安定化ベータアルミナ固体電解質管の
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing MgO-stabilized beta-alumina solid electrolyte tubes that enables large-scale firing of beta-alumina solid electrolyte tubes.
［従来の技術］
ナトリウム−硫黄電池は、一方に陰極活物質である溶融
金属ナトリウム、他方には陽極活物質である溶融硫黄を
配し、両者をナトリウムイオンに対して選択的な透過性
を有するベータアルミナ固体電解質で隔離し、３００〜
３５０°Ｃて作動させる高温二次電池である。[Prior Art] A sodium-sulfur battery has molten metal sodium as a cathode active material on one side and molten sulfur as an anode active material on the other side, and both have selective permeability to sodium ions. Isolated with beta alumina solid electrolyte, 300 ~
This is a high-temperature secondary battery that operates at 350°C.
このようなナトリウム−硫黄電池の構成は１例えば第１
図に示すように、陽極活物質である溶融硫黄Ｓを含浸し
たカーボンフェルト等の陽極用導電材ｌを収容する円筒
状の陽極容器２と、該陽極容器２の上端部と例えばアル
ファアルミナ製の絶縁体リング３を介して連結され、且
つ溶融金属ナトリウムＮａを貯留する陰極容器４と、前
記絶縁体リング３の内周部に接合され、且つナトリウム
イオンＮａ”″を選択的に透過させる機能を有する有底
円筒状のベータアルミナ管５とからなっている。また、
前記陰極容器４の上Ｍ６の中央部には、陰極容器４を通
して下方向にベータアルミナ管５の底部付近まで延びた
陰極管７が貫通支持されている。The configuration of such a sodium-sulfur battery is 1 e.g.
As shown in the figure, there is a cylindrical anode container 2 that accommodates an anode conductive material l such as carbon felt impregnated with molten sulfur S, which is an anode active material, and a cylindrical anode container 2 that accommodates an anode conductive material l such as carbon felt impregnated with molten sulfur S, which is an anode active material. A cathode container 4 is connected via an insulator ring 3 and stores molten metal sodium Na, and a cathode container 4 is connected to the inner circumference of the insulator ring 3 and has a function of selectively permeating sodium ions Na''. It consists of a cylindrical beta alumina tube 5 with a bottom. Also,
A cathode tube 7 extending downward through the cathode container 4 to near the bottom of the beta alumina tube 5 is supported through the center of the upper M6 of the cathode container 4.
以上の構成を有するナトリウム−硫黄電池において、放
電時には溶融金属ナトリウムは電子を放出してナトリウ
ムイオンとなり、これがベータアルミナ固体電解質中を
透過して陽極側に移動し、陽極の硫黄と外部回路を通っ
てきた電子と反応して多硫化ナトリウムを生成し、２Ｖ
程度の電圧を発生する。一方、充電時には放電とは逆に
ナトリウム及び硫黄の生成反応が起こる。In a sodium-sulfur battery with the above configuration, during discharge, molten metal sodium releases electrons and becomes sodium ions, which pass through the beta alumina solid electrolyte and move to the anode side, passing through the sulfur of the anode and an external circuit. Reacts with the incoming electrons to produce sodium polysulfide, which generates 2V
Generates a voltage of approximately On the other hand, during charging, sodium and sulfur production reactions occur, contrary to discharging.
以上のように、ナトリウム−硫黄電池において、ベータ
アルミナ固体電解質管は極めて重要な役割を果たすもの
であり、ナトリウムイオン伝導性などの特性を所望の範
囲内とするため、その製造には細心の注意が払われてい
る。As mentioned above, beta-alumina solid electrolyte tubes play an extremely important role in sodium-sulfur batteries, and great care must be taken in their manufacture to keep properties such as sodium ion conductivity within the desired range. is being paid.
従来より、ベータアルミナ固体電解質管としてその基本
組成がＬｉ、Ｏ安定化ベータアルミナ系の固体電解質管
が主として使用され、一部では少量のＬｉ２ＯとＭｇＯ
とを安定化剤として加えたＭｇＯ安定化ベータアルミナ
系の固体電解質管も使用されており、その場合、特にＬ
ｉ２Ｏ安定化ベータアルミナ系は上記の特性を有するよ
うに焼成するためには焼成温度を厳密に制御しなければ
ならない。そのため、従来からベータアルミナ管の焼成
には厳密な温度制御が可能な電気炉が主として用いられ
ている。Conventionally, solid electrolyte tubes whose basic composition is Li and O stabilized beta alumina have been mainly used as beta alumina solid electrolyte tubes, and in some cases, small amounts of Li2O and MgO have been used.
Solid electrolyte tubes based on MgO stabilized beta alumina have also been used, with the addition of L as a stabilizer.
In order for the i2O stabilized beta alumina system to be fired to have the above properties, the firing temperature must be strictly controlled. Therefore, conventionally, electric furnaces capable of precise temperature control have been mainly used for firing beta alumina tubes.
［発明が解決しようとする課題］
電気炉は、上記のように±５°Ｃ程度の厳密な温度制御
をしつつ焼成が可能であるが、均熱帯の制約から大型炉
の使用は困難で、容量が一般的には０．３ｍ”程度と小
さく、その結果ベータアルミナ管の大規模焼成ができず
、焼成コストが高くなるという問題があった。[Problem to be solved by the invention] As mentioned above, electric furnaces are capable of firing with strict temperature control of about ±5°C, but it is difficult to use large furnaces due to restrictions on the soaking zone. The capacity is generally as small as about 0.3 m'', and as a result, large-scale firing of beta alumina tubes is not possible and the firing cost is high.
［課題を解決するための手段］
そこで、本発明者は、電気炉を用いることなく、ガス炉
焼成によってベータアルミナ管の焼成を可能とすべく、
種々検討を重ねた結果、本発明を完成した。[Means for Solving the Problems] Therefore, the present inventors aimed to make it possible to fire a beta alumina tube by firing in a gas furnace without using an electric furnace.
As a result of various studies, the present invention was completed.
即ち、本発明によれば、ＭｇＯが２．０〜６．０ｗｔ％
、Ｎａ、Ｏか６．０〜１２．Ｏｗｔ％、残部がＡ ｌ
２０ ：Ｉよりなる組成範囲を有するベータアルミナ有
底円筒状成形体を、ガス炉を用いて焼成することを特徴
とするＭｇＯ安定化ベータアルミナ固体電解質管の製造
方法、が提供される。That is, according to the present invention, MgO is 2.0 to 6.0 wt%
, Na, O or 6.0 to 12. Owt%, the remainder is Al
Provided is a method for producing an MgO-stabilized beta-alumina solid electrolyte tube, which comprises firing a beta-alumina bottomed cylindrical molded body having a composition range of 20:I using a gas furnace.
［作用］
本発明では、ベータアルミナ固体電解質管の焼成を、電
気炉に比ベエネルギーコストが安価でかつ大規模焼成か
可能なガス炉を用いて行なうものである。その場合、ガ
ス炉の焼成温度精度は±１５℃程度であるため、従来ベ
ータアルミナ固体電解質管として主に用いられているＬ
ｉ２Ｏ安定化ベータアルミナ系の固体電解質管は用いる
ことができない。そのため、本発明では、Ｌｉ、Ｏ安定
化ベータアルミナ系ではなく、ＭｇＯ安定化ベータアル
ミナ系の固体電解質管を用いることとし、ガス炉におけ
る±１５℃程度の焼成温度精度であっても固体電解質管
の必要特性を保持した焼成が可能であるかどうかを種々
の観点から検討し、下記組成範囲のＭｇＯ安定化ベータ
アルミナ系の固体電解質管が適当であることを見出した
。[Function] In the present invention, the beta-alumina solid electrolyte tube is fired using a gas furnace, which has lower energy cost than an electric furnace and is capable of large-scale firing. In that case, the firing temperature accuracy of the gas furnace is approximately ±15°C, so L
Solid electrolyte tubes based on i2O stabilized beta alumina cannot be used. Therefore, in the present invention, a MgO-stabilized beta-alumina solid electrolyte tube is used instead of a Li, O-stabilized beta-alumina-based solid electrolyte tube, and even if the firing temperature accuracy in a gas furnace is about ±15°C, the solid electrolyte tube We investigated from various viewpoints whether it is possible to perform firing while maintaining the necessary characteristics, and found that MgO-stabilized beta-alumina solid electrolyte tubes having the following composition range are suitable.
即ち、ＭｇＯが２．０〜６．０ｗｔ％、好ましくは：１
３〜４．９ｗｔ％、Ｎａ２Ｏが６．０〜１２．０ｗｔ％
、好ましくは８−２〜９．８ｗｔ％、残部がＡ文２０３
よりなる組＊ｉ囲を有するＭｇＯ安定化ベータアルミナ
系固体電解質管をガス炉にて焼成することより成るもの
である。That is, MgO is 2.0 to 6.0 wt%, preferably: 1
3 to 4.9 wt%, Na2O is 6.0 to 12.0 wt%
, preferably 8-2 to 9.8 wt%, the balance being A sentence 203
This method consists of firing an MgO-stabilized beta-alumina solid electrolyte tube having a group *i radius in a gas furnace.
なお、後述するように上記組成範囲外の場合には、ナト
リウム−硫黄電池に用いるためのベータアルミナ固体電
解質管として必要な特性を有するものが製造てきない。As will be described later, if the composition is outside the above range, a beta-alumina solid electrolyte tube having the necessary characteristics for use in a sodium-sulfur battery cannot be manufactured.
このように、本発明では特定組成範囲内のＭｇＯ安定化
ベータアルミナ固体電解質管をガス炉を用いて焼成を行
なうので、大規模焼成が可能であってコストが低減でき
る。As described above, in the present invention, since the MgO-stabilized beta-alumina solid electrolyte tube within a specific composition range is fired using a gas furnace, large-scale firing is possible and costs can be reduced.
なお、ガス炉における焼成は１通常昇温速度５０〜３０
０℃／ｈｒで１４５０〜１７００°Ｃまて昇温して約１
０分〜２時間保持することにより行なうことが好ましい
。Note that firing in a gas furnace usually has a heating rate of 50 to 30
Raise the temperature to 1450-1700°C at 0°C/hr for about 1
This is preferably carried out by holding for 0 minutes to 2 hours.
［実施例］
以下、本発明を実施例に基き、更に詳細に説明するが、
本発明はこれら実施例に限られるものではない。[Examples] Hereinafter, the present invention will be explained in more detail based on Examples.
The present invention is not limited to these examples.
（実施例１）
出発原料として粒径１０ｐｍ以下の微細なα−アルミナ
とＮ ａ ２ ＣＯ−（試薬−級）およびＭｇ０（試薬
特級）を用い、Ｎａ２ＯおよびＭｇＯに換算して第２図
にプロットした１１種類の組成について均一に混合した
後、その粉末を１３００°Ｃの炉内で４時間保持して、
ＭｇＯ安定化ベータアルミナ粉末を合成した。(Example 1) Using fine α-alumina with a particle size of 10 pm or less, Na 2 CO- (reagent-grade) and Mg0 (special reagent grade) as starting materials, the results are plotted in Figure 2 in terms of Na2O and MgO. After uniformly mixing the 11 different compositions, the powder was held in a 1300°C furnace for 4 hours.
MgO stabilized beta alumina powder was synthesized.
この合成粉末に成形助剤を加え、アルミナ製ボットミル
を用いて湿式粉砕を２０時間行なった。A molding aid was added to this synthetic powder, and wet pulverization was performed for 20 hours using an alumina bot mill.
各々の湿式粉砕物を噴霧式造粒乾燥処理することにより
、成形用粉末を得た。A powder for molding was obtained by subjecting each of the wet-pulverized products to a spray-type granulation drying process.
各成形用粉末をそれぞれ成形圧力１５００ｋｇ／ｃｒａ
２にて、ラバープレス法によって１８（φ）×１５（φ
）ｘ１８０（文） ａｍの有底試験管状の成形体を各２
０本ずつ得た。Each molding powder has a molding pressure of 1500 kg/cra.
2, 18(φ)×15(φ
) x 180 (text) 2 am bottomed test tube shaped molded bodies each
I got 0 each.
これらの成形体を酸化マグネシウムよりなる耐アルカリ
材質からなる容器で覆って焼成温度精度±１５°Ｃのガ
ス焼成炉中に設置し、室温から１ｏｏｏ℃迄２００℃／
ｈｒ、 ｌ ＯＯＯ’Ｃから１６５０°Ｃまで３００
”Ｃ／ｈｒで加熱し、１６５００Ｃで３０分間保持後
１１００℃まで１２０℃／ｈｒで徐冷した後自然冷却を
行なった。このような方法によってそれぞれ１１種類の
組成のベータアルミナ管焼結体を各２０本ずつ得ること
かできた。These compacts were covered with a container made of an alkali-resistant material made of magnesium oxide, placed in a gas firing furnace with a firing temperature accuracy of ±15°C, and heated at 200°C/200°C from room temperature to 100°C.
hr, l OOO'C to 1650°C 300
After heating at 16500C/hr for 30 minutes, slow cooling to 1100℃ at 120℃/hr, and then natural cooling. I was able to get 20 pieces of each.
これらの焼結体を用い、ナトリウム−硫黄電池に用いる
固体電解質管として必要な特性である密度、強度及びナ
トリウムイオイン伝導抵抗率を測定した。その結果、第
２図および第３図に示すように試料■、■および■の３
種が従来の電気炉（温度精度±５°Ｃ程度）で得られる
固体電解質の特性を満足した。すなわち、温度精度±５
°Ｃ程度の電気炉焼成と同レベルの特性が得られる組成
範囲は、ＭｇＯが２．０〜６．０ｗｔ％、Ｎａ２Ｏが６
．０〜１２．０ｗｔ％、Ａ文、０３が残部であることが
判明した。上位組成範囲外の場合には、第３図の残りの
８種類の組成のように、いずれかの特性を満足しておら
ず、ナトリウム−硫黄電池用の固体電解質管として好ま
しくないものである。Using these sintered bodies, the density, strength, and sodium ion conduction resistivity, which are characteristics necessary for solid electrolyte tubes used in sodium-sulfur batteries, were measured. As a result, as shown in Fig. 2 and Fig. 3, three of the samples ■, ■, and ■
The seed satisfied the characteristics of a solid electrolyte obtained in a conventional electric furnace (temperature accuracy of approximately ±5°C). That is, temperature accuracy ±5
The composition range that provides the same level of properties as electric furnace firing at around °C is 2.0 to 6.0 wt% MgO and 6 wt% Na2O.
．． It was found that 0 to 12.0 wt%, A text, and 03 were the remainder. If the composition is outside the upper composition range, like the remaining eight compositions in FIG. 3, it does not satisfy any of the characteristics and is not preferred as a solid electrolyte tube for a sodium-sulfur battery.
［発明の効果］
以上説明したように、本発明は特定組成のＭｇＯ安定化
ベータアルミナ有底円筒状成形体を用いてガス炉焼成し
ているので、ナトリウム−硫黄電池として必要な固体電
解質管の特性を維持しつつ大型ガス炉あるいはトンネル
式ガス焼成炉のような大規模焼成が可能となり、ナトリ
ウム−硫黄電池として有用な固体電解質管のコストを大
幅に低減することができる。[Effects of the Invention] As explained above, the present invention uses an MgO-stabilized beta alumina bottomed cylindrical molded body having a specific composition and fires it in a gas furnace. It becomes possible to perform large-scale firing in a large gas furnace or tunnel type gas firing furnace while maintaining the characteristics, and the cost of solid electrolyte tubes useful as sodium-sulfur batteries can be significantly reduced.
第１図Figure 1
第１図はナトリウム−硫黄電池の基本構成を示す概略断
面図、第２図は実施例中の１１種類の組成を示すダイヤ
グラム、第３図は１１種類の焼結体における特性を示す
グラフである。
１・・・陽極用導電材ｌ、２・・・陽極容器、３・・・
絶縁体リング、４・・・陰極容器、５−・・ベータアル
ミナ管。Figure 1 is a schematic cross-sectional view showing the basic structure of a sodium-sulfur battery, Figure 2 is a diagram showing 11 types of compositions in the example, and Figure 3 is a graph showing the characteristics of 11 types of sintered bodies. . 1... Anode conductive material l, 2... Anode container, 3...
Insulator ring, 4... cathode container, 5-... beta alumina tube.
Claims (1)
．０〜１２．０ｗｔ％、残部がＡｌ＿２Ｏ＿３よりなる
組成範囲を有するベータアルミナ有底円筒状成形体を、
ガス炉を用いて焼成することを特徴とするＭｇＯ安定化
ベータアルミナ固体電解質管の製造方法。(1) MgO is 2.0 to 6.0 wt%, Na_2O is 6
．． A beta alumina bottomed cylindrical molded body having a composition range of 0 to 12.0 wt%, the balance being Al_2O_3,
1. A method for producing an MgO-stabilized beta-alumina solid electrolyte tube, which comprises firing using a gas furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63275086A JPH064505B2 (en) | 1988-10-31 | 1988-10-31 | Method for producing MgO-stabilized beta-alumina solid electrolyte tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63275086A JPH064505B2 (en) | 1988-10-31 | 1988-10-31 | Method for producing MgO-stabilized beta-alumina solid electrolyte tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02120273A true JPH02120273A (en) | 1990-05-08 |
| JPH064505B2 JPH064505B2 (en) | 1994-01-19 |
Family
ID=17550610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63275086A Expired - Lifetime JPH064505B2 (en) | 1988-10-31 | 1988-10-31 | Method for producing MgO-stabilized beta-alumina solid electrolyte tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH064505B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54149709A (en) * | 1978-05-16 | 1979-11-24 | Chloride Silent Power Ltd | Production of polycrystalline betaaalumina ceramics |
-
1988
- 1988-10-31 JP JP63275086A patent/JPH064505B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54149709A (en) * | 1978-05-16 | 1979-11-24 | Chloride Silent Power Ltd | Production of polycrystalline betaaalumina ceramics |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH064505B2 (en) | 1994-01-19 |
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