JPH03187160A - Sodium-sulfur battery - Google Patents
Sodium-sulfur batteryInfo
- Publication number
- JPH03187160A JPH03187160A JP1326868A JP32686889A JPH03187160A JP H03187160 A JPH03187160 A JP H03187160A JP 1326868 A JP1326868 A JP 1326868A JP 32686889 A JP32686889 A JP 32686889A JP H03187160 A JPH03187160 A JP H03187160A
- Authority
- JP
- Japan
- Prior art keywords
- alumina
- alpha
- sodium
- cylindrical part
- cylindrical
- 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
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 title claims description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000012212 insulator Substances 0.000 claims description 16
- 239000007784 solid electrolyte Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 239000011149 active material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 5
- 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 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000873 Beta-alumina solid electrolyte Inorganic materials 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- 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
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はナトリウム−硫黄電池に係り、特に金属製正極
蓋あるいは負極蓋の熱サイクルによる疲労劣化を緩和し
、かつ正極と負極を絶縁するα−アルミナ絶縁材と前記
正極蓋あるいは負極蓋との接合部の機械的強度を高めた
ナトリウム−硫黄電池の構造に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to sodium-sulfur batteries, and in particular to a metal positive electrode lid or negative electrode lid that alleviates fatigue deterioration due to thermal cycles and that insulates the positive electrode and negative electrode. - The present invention relates to a structure of a sodium-sulfur battery in which the mechanical strength of the joint between the alumina insulating material and the positive electrode cover or the negative electrode cover is increased.
（従来の技術）
ナトリウム−硫黄電池は負極活物質であるナトリウムと
正極活物質である硫黄とをβ−アルミナ、β°−アルミ
ナなどナトリウムイオン伝導性固体電解質により分離し
、３００〜３５０°Ｃの高温で作動させる密閉型高温二
次電池である。第４図はこのナトリウム−硫黄電池の従
来構造を示す図で、この図において固体電解質管（１）
の内側はナトリウムの充填された負極室（３）、外側は
硫黄の充填された正極室（４）であり、固体電解質管（
Ｄの上端にはリング状のα−アルミナ絶縁体（２）がガ
ラス半田により接合されている０図中の符号（５）は負
極蓋で、円板部（６）とα−アルミナ絶縁体（２）の上
面に熱圧接合されるフランジ部（８）を設けた円筒部（
７）とからなり、その材質はアルミニウム製、あるいは
少なくともα−アルミナ絶縁体（２）との接合面にアル
ミニウム被覆を有する金属製である。(Prior art) Sodium-sulfur batteries separate sodium, which is a negative electrode active material, and sulfur, which is a positive electrode active material, using a sodium ion conductive solid electrolyte such as β-alumina or β°-alumina. It is a sealed high-temperature secondary battery that operates at high temperatures. Figure 4 shows the conventional structure of this sodium-sulfur battery, in which the solid electrolyte tube (1)
The inside of the tube is a negative electrode chamber (3) filled with sodium, the outside is a positive electrode chamber (4) filled with sulfur, and the solid electrolyte tube (
A ring-shaped α-alumina insulator (2) is bonded to the upper end of D by glass solder. The symbol (5) in Figure 0 is the negative electrode cover, which connects the disc part (6) and the α-alumina insulator ( 2) A cylindrical part (
7), and the material thereof is aluminum or a metal having at least an aluminum coating on the joint surface with the α-alumina insulator (2).
このような負極Ｍ（５）は電池製造における安全性、量
産性などを考慮して円板部（６）と円筒部（７）の別部
材を用いて負極室（３）の密封時に円板部（６）の円周
と円筒部（７）の上端とを溶接することで一体化される
のであるが、その溶接の際、フランジ部（８）とαアル
ミナ絶縁体（２）との熱圧接合部に熱の影響が及ばない
ように溶接部はフランジ部（８）から離す必要がある。This kind of negative electrode M (5) uses separate members of a disk part (6) and a cylindrical part (7) in consideration of safety and mass productivity in battery manufacturing. The circumference of the part (6) and the upper end of the cylindrical part (7) are integrated by welding, but during welding, the heat generated between the flange part (8) and the α-alumina insulator (2) The weld should be separated from the flange (8) so that the pressure joint is not affected by heat.
なお、第４図に示す従来構造のナトリウム−硫黄電池で
は固体電解質管（１）の内側が負極室（３）、外側が正
極室で４）であるが、固体電解質管（１ンの内側を正極
室、外側を負極室としてナトリウム硫黄電池を形成する
こともできる。In the conventional sodium-sulfur battery shown in Figure 4, the inside of the solid electrolyte tube (1) is the negative electrode chamber (3), and the outside is the positive electrode chamber (4), but the inside of the solid electrolyte tube (1) is A sodium-sulfur battery can also be formed with a positive electrode chamber and a negative electrode chamber on the outside.
（発明が解決しようとする課題）
しかしながら、この第４図に示すナトリウム−硫黄電池
では、電池が高温（３００〜３５０’Ｃ）で作動するた
め、゛第５図の拡大図に示すように金属製負極蓋（５）
の円板部（６）及び円筒部（７）が熱膨張により伸びて
円筒部（７）の外側への傾動が起こる。そして電池の始
動、停止などで熱サイクルがかかると円筒部（７）の傾
動、復帰が繰り返されるのでその応力がとくにかかる円
筒部（７）の内側にクラックが入りやすく、また、フラ
ンジ部（８）とα−アルミナ絶縁体（２）の接合部にも
ひずみがかかるためその部分の破損の原因となる可能性
もある。(Problem to be Solved by the Invention) However, in the sodium-sulfur battery shown in FIG. 4, since the battery operates at high temperatures (300 to 350'C), Manufactured negative electrode lid (5)
The disk portion (6) and the cylindrical portion (7) expand due to thermal expansion, causing the cylindrical portion (7) to tilt outward. When the battery is subjected to thermal cycles such as starting and stopping, the cylindrical part (7) repeatedly tilts and returns, which tends to cause cracks on the inside of the cylindrical part (7), where stress is particularly applied. ) and the α-alumina insulator (2), which may cause damage to that part.
（課題を解決するための手段）
本発明は上記の課題を解決するためになされたもので、
上端部にリング状のα−アルミナ絶縁体を固着した有底
円筒状の固体電解質管の内側と外側をそれぞれ正極室あ
るいは負極室とし前記固体電解質管の内側の室を封口す
る金属装着が前記α−アルミナ絶縁体の上面に接合され
るフランジ部を設けた円筒部と該円筒部の上端部あるい
は下端部に溶接された円板部とからなるナトリウム−硫
黄電池において、前記円板部の熱膨張による前記円筒部
の傾動を抑止するリング状のα−アルミナ製抑止体を前
記円筒部の外周側面に当接させて設けたことを特徴とす
るものである。(Means for Solving the Problems) The present invention has been made to solve the above problems.
The inside and outside of a bottomed cylindrical solid electrolyte tube with a ring-shaped α-alumina insulator fixed to its upper end are respectively used as a positive electrode chamber or a negative electrode chamber, and the metal fitting seals the inner chamber of the solid electrolyte tube. - In a sodium-sulfur battery consisting of a cylindrical part provided with a flange part joined to the upper surface of an alumina insulator and a disc part welded to the upper or lower end of the cylindrical part, thermal expansion of the disc part The present invention is characterized in that a ring-shaped α-alumina deterrent body is provided in contact with the outer peripheral side surface of the cylindrical portion to suppress the tilting of the cylindrical portion.
（実施例）
以下、本発明を図示のナトリウム−硫黄電池を実施例と
して詳細に説明する。(Example) Hereinafter, the present invention will be described in detail by using the illustrated sodium-sulfur battery as an example.
第１図は本発明の一実施例であるナトリウム−ｇ黄電池
の要部断面図で第４図と同一部材は同一符号で示されて
いる。ただし、固体電解質管（１）の内側を正極室、外
側を負極室とした場合は符号（５）は正ｌＪｉＭである
。第２図は第１図に示す実施例を説明するために要部を
拡大した図で符号（９）で示す部材は蓋（５）の円板部
（６）の熱膨張により円筒部（７）が外側へ傾動するの
を抑止できるように円筒部（７）を嵌通させて設けたα
−アルミナ製抑止体である。FIG. 1 is a sectional view of essential parts of a sodium-g yellow battery which is an embodiment of the present invention, and the same members as in FIG. 4 are indicated by the same symbols. However, when the inside of the solid electrolyte tube (1) is a positive electrode chamber and the outside is a negative electrode chamber, the code (5) is positive lJiM. FIG. 2 is an enlarged view of the main parts for explaining the embodiment shown in FIG. ) is provided by fitting the cylindrical part (7) so as to prevent it from tilting outward.
- Alumina deterrent.
第３図は本発明の他の実施例を示す図で、α−アルミナ
絶縁体（２）上面に熱圧接合されているフランジ部（８
）を上端部に有する円筒体（７）がα−アルミナ絶縁体
（２）の内周側面に当接されており、円板部（６）がそ
の円筒体（７）の下端部に溶接されて設けられている。FIG. 3 is a diagram showing another embodiment of the present invention, in which a flange portion (8
) is in contact with the inner circumferential side of the α-alumina insulator (2), and the disc part (6) is welded to the lower end of the cylinder (7). It is provided.
（作用及び効果）
このように構成されたものは、円板部（６）及び円筒部
（７）の熱膨張による円筒部（７）の外側への傾動は第
１図及び第２図に示す実施例のものにおいては円筒部（
７）を嵌通させて設けたα−アルミ製抑止体（９）によ
り、また、第３図に示す実施例のものにおいては円筒部
（７）の外側に当接しているα−アルミナ絶縁体（２）
により抑止されるので電池の作動時の熱サイクルに伴う
円筒部（７）の傾動、復帰の繰り返しがなくなる。なお
、第１図及び第２図に示す実施例では抑止体（９）はα
−アルミナ絶縁体（２）と同材質のα−アルミナである
ため、抑止体（９）とα−アルミナ絶縁体（２）の熱膨
張に差がなく、円筒部（７）にそれによる応力のかかる
おそれがない、したがって円筒部（７）の疲労劣化も抑
えることができ、かつフランジ部（８）とα−アルミナ
絶縁体（２）との接合部にも応力がかかることがないた
め、クランクの発生やそれによる活物質のリークなどの
異常状態に電池が陥いる危険性がなくなり長寿命で安全
性の高いナトリウム−硫黄電池を提供できる。(Functions and Effects) With this structure, the outward tilting of the cylindrical part (7) due to thermal expansion of the disc part (6) and the cylindrical part (7) is shown in Figures 1 and 2. In the example, the cylindrical part (
7), and in the embodiment shown in FIG. 3, the α-alumina insulator that is in contact with the outside of the cylindrical part (7) (2)
This eliminates the repeated tilting and returning of the cylindrical portion (7) due to thermal cycles during battery operation. In addition, in the embodiment shown in FIGS. 1 and 2, the deterrent body (9) is α
- Since α-alumina is the same material as the alumina insulator (2), there is no difference in thermal expansion between the suppressor (9) and the α-alumina insulator (2), and the resulting stress is applied to the cylindrical part (7). Therefore, fatigue deterioration of the cylindrical part (7) can be suppressed, and no stress is applied to the joint between the flange part (8) and the α-alumina insulator (2), so the crank This eliminates the risk of the battery falling into an abnormal state such as the occurrence of oxidation and leakage of the active material due to this, making it possible to provide a sodium-sulfur battery with a long life and high safety.
以上に説明したとおり、本発明のものは従来の問題点を
一掃したナトリウム−硫黄電池として、産業の発展に寄
与するところは極めて大である。As explained above, the present invention greatly contributes to the development of industry as a sodium-sulfur battery that eliminates the conventional problems.
第１図は本発明の実施例を示す要部断面図、第２図は第
１図の要部拡大図、第３図は本発明の他の実施例を示す
要部断面図、第４図は従来例を示す図、第５図は第４図
の要部拡大図である。
（１）：固体電解質管、（２）：α−アルミナ絶縁体、
（３）：正極室又は負極室、（４）：負極室又は正極室
、（５）：正極蓋又は負極蓋、（６）二円板部、（７）
：円筒部、（８）：フランジ部、（９）：α−アルミナ
製ｒｍ止体。Fig. 1 is a sectional view of the main part showing an embodiment of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is a sectional view of the main part showing another embodiment of the invention, and Fig. 4 5 is a diagram showing a conventional example, and FIG. 5 is an enlarged view of the main part of FIG. 4. (1): Solid electrolyte tube, (2): α-alumina insulator,
(3): Positive electrode chamber or negative electrode chamber, (4): Negative electrode chamber or positive electrode chamber, (5): Positive electrode lid or negative electrode lid, (6) Two-disc part, (7)
: Cylindrical part, (8): Flange part, (9): rm stop made of α-alumina.
Claims (1)
着した有底円筒状の固体電解質管（１）の内側と外側を
それぞれ正極室あるいは負極室（３又は４）とし前記固
体電解質管（１）の内側の室（３）を封口する金属装着
（５）が前記α−アルミナ絶縁体（２）の上面に接合さ
れるフランジ部（８）を設けた円筒部（７）と該円筒部
（７）の上端部あるいは下端部に溶接された円板部（６
）とからなるナトリウム−硫黄電池において、前記円板
部（６）及び円筒部（７）の熱膨張による前記円筒部（
７）の傾動を抑止するリング状のα−アルミナ製抑止体
（９）を前記円筒部（７）の外周側面に当接させて設け
たことを特徴とするナトリウム−硫黄電池。 ２、前記α−アルミナ製抑止体がα−アルミナ絶縁体（
２）である請求項１記載のナトリウム−硫黄電池。[Scope of Claims] 1. A bottomed cylindrical solid electrolyte tube (1) with a ring-shaped α-alumina insulator (2) fixed to its upper end has a positive electrode chamber or a negative electrode chamber (3 or 4) A cylinder provided with a flange portion (8) to which a metal fitting (5) sealing the inner chamber (3) of the solid electrolyte tube (1) is joined to the upper surface of the α-alumina insulator (2). part (7) and a disc part (6) welded to the upper or lower end of the cylindrical part (7).
), the cylindrical portion (
7) A sodium-sulfur battery characterized in that a ring-shaped α-alumina restraining body (9) for restraining the tilting of the cylindrical portion (7) is provided in contact with the outer circumferential side surface of the cylindrical portion (7). 2. The α-alumina deterrent body is an α-alumina insulator (
2) The sodium-sulfur battery according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1326868A JPH0650649B2 (en) | 1989-12-15 | 1989-12-15 | Sodium-sulfur battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1326868A JPH0650649B2 (en) | 1989-12-15 | 1989-12-15 | Sodium-sulfur battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03187160A true JPH03187160A (en) | 1991-08-15 |
| JPH0650649B2 JPH0650649B2 (en) | 1994-06-29 |
Family
ID=18192628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1326868A Expired - Lifetime JPH0650649B2 (en) | 1989-12-15 | 1989-12-15 | Sodium-sulfur battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650649B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05266918A (en) * | 1992-03-18 | 1993-10-15 | Ngk Insulators Ltd | Connecting structure between insulating ring and cylindrical fitting in sodium-sulfur battery |
| JPH05275112A (en) * | 1992-03-26 | 1993-10-22 | Ngk Insulators Ltd | Bonding structure of insulating ring and cylindrical metal fitting in sodium-sulfur battery |
| WO2011148631A1 (en) | 2010-05-25 | 2011-12-01 | Ohkawa Hiroshi | Solid-electrolyte secondary battery |
| WO2011152028A1 (en) | 2010-05-31 | 2011-12-08 | Ohkawa Hiroshi | Solid electrolyte secondary battery |
-
1989
- 1989-12-15 JP JP1326868A patent/JPH0650649B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05266918A (en) * | 1992-03-18 | 1993-10-15 | Ngk Insulators Ltd | Connecting structure between insulating ring and cylindrical fitting in sodium-sulfur battery |
| JPH05275112A (en) * | 1992-03-26 | 1993-10-22 | Ngk Insulators Ltd | Bonding structure of insulating ring and cylindrical metal fitting in sodium-sulfur battery |
| WO2011148631A1 (en) | 2010-05-25 | 2011-12-01 | Ohkawa Hiroshi | Solid-electrolyte secondary battery |
| WO2011152028A1 (en) | 2010-05-31 | 2011-12-08 | Ohkawa Hiroshi | Solid electrolyte secondary battery |
| US9300012B2 (en) | 2010-05-31 | 2016-03-29 | Hiroshi Ohkawa | Solid electrolyte secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0650649B2 (en) | 1994-06-29 |
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