JPH02165575A - Thermal-pressure bonding of sodium-sulfur battery - Google Patents
Thermal-pressure bonding of sodium-sulfur batteryInfo
- Publication number
- JPH02165575A JPH02165575A JP63321334A JP32133488A JPH02165575A JP H02165575 A JPH02165575 A JP H02165575A JP 63321334 A JP63321334 A JP 63321334A JP 32133488 A JP32133488 A JP 32133488A JP H02165575 A JPH02165575 A JP H02165575A
- Authority
- JP
- Japan
- Prior art keywords
- anode
- bonding
- sodium
- stainless steel
- fitting
- 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 12
- 239000010935 stainless steel Substances 0.000 claims description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims description 25
- 238000005304 joining Methods 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 description 44
- 239000002184 metal Substances 0.000 description 44
- 239000011734 sodium Substances 0.000 description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 8
- 239000011593 sulfur Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 239000007784 solid electrolyte Substances 0.000 description 7
- 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 5
- 230000000694 effects Effects 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000006183 anode active material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RPMPQTVHEJVLCR-UHFFFAOYSA-N pentaaluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3] RPMPQTVHEJVLCR-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel 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
-
- 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)
- Ceramic Products (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明はナトリウム−硫黄電池における絶縁リングと
陽極及び陰極の電極金具との熱圧接合方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for thermopressure bonding an insulating ring and anode and cathode electrode fittings in a sodium-sulfur battery.
［従来の技術］
従来のナトリウム−硫黄電池として第７図に示すように
、陽極活物質である溶融硫黄Ｓを収納する有底円筒状の
陽極容器２２と、該陽極容器２２の上部内側に対し、円
筒部２３ａとフランジ部２３ｂからなる陽極金具２３を
介してａ−アルミナ製の絶縁リング２４を嵌合固定し、
該絶縁リング２４の内周面にはナトリウムイオンＮａ”
を選択的に透過させる機能を有した下方へ延びる多結晶
β″−アルミナよりなる有底円筒状の固体電解質管２５
の上部外周面を接合固定し、さらに、前記絶縁リング２
４の上端部には円筒部２６ａとフランジ部２６ｂからな
る陰極金具２６を嵌合固定し、該陰極金具２６の上端部
には平板状の陰極′ｆ１２７を当接して溶接固定したも
のがあった。又、前記固体電解質管２５により電池内部
は溶融硫黄Ｓを収納する陽極室Ｒ１と、ナトリウムＮａ
を貯留する陰極室Ｒ２に区画形成されれている。[Prior Art] As shown in FIG. 7, a conventional sodium-sulfur battery includes a bottomed cylindrical anode container 22 that stores molten sulfur S as an anode active material, and an upper inner side of the anode container 22. , an insulating ring 24 made of a-alumina is fitted and fixed via an anode fitting 23 consisting of a cylindrical part 23a and a flange part 23b,
The inner circumferential surface of the insulating ring 24 contains sodium ions (Na").
A bottomed cylindrical solid electrolyte tube 25 made of polycrystalline β''-alumina and extending downward and having the function of selectively transmitting
The upper outer peripheral surface of the insulating ring 2 is bonded and fixed, and the insulating ring 2
4, a cathode fitting 26 consisting of a cylindrical portion 26a and a flange portion 26b was fitted and fixed, and a flat cathode 'f127 was abutted against and fixed by welding to the upper end of the cathode fitting 26. . Furthermore, the solid electrolyte tube 25 provides an anode chamber R1 for storing molten sulfur S, and an anode chamber R1 for storing molten sulfur S.
It is divided into a cathode chamber R2 for storing the .
そして、放電時にはナトリウムは陰極室Ｒ２からナトリ
ウムイオンＮａ”となって固体電解質管２５を透過して
陽極室Ｒ１内の硫黄Ｓと次のように反応し、多硫化ナト
リウムを生成する。During discharge, sodium becomes sodium ions Na'' from the cathode chamber R2, passes through the solid electrolyte tube 25, reacts with sulfur S in the anode chamber R1 as follows, and produces sodium polysulfide.
２Ｎａ＋ＸＳ−＋Ｎａｔ Ｓｘ
又、充電時には放電時とは逆の反応が起こり、ナトリウ
ムＮａ及び硫黄Ｓが生成される。2Na+XS-+Nat Sx Also, during charging, a reaction opposite to that during discharging occurs, and sodium Na and sulfur S are generated.
［発明が解決しようとする課題］
ところが、前記従来の電池は、絶縁リング２４に対し、
陽極金具２３及び陰極金具２６を熱圧接合する際、ステ
ンレス製の接合用加圧治具をアルミニウムあるいはアル
ミニウム合金製の前記陽極金具２３及び陰極金具２６に
直接接触していたので、加圧治具と両会具２３．２６の
材質の相違により接合用加圧治具が陽極金具２３及び陰
極金具２６に接着し易く、従って、前記加圧治具の引き
離しか面倒であるばかってでなく、加圧治具を離隔する
とき、絶縁リング２４と陽極金具２３及び陰極金具２６
との接合界面が引張力を受けるので、接合強度及び組付
は寸法精度が低下するという問題があった。[Problems to be Solved by the Invention] However, in the conventional battery, with respect to the insulating ring 24,
When bonding the anode metal fitting 23 and the cathode metal fitting 26 by heat and pressure, the pressurizing jig made of stainless steel was in direct contact with the anode metal fitting 23 and the cathode metal fitting 26 made of aluminum or aluminum alloy. Due to the difference in the materials of the two fittings 23 and 26, the bonding pressure jig tends to adhere to the anode metal fitting 23 and the cathode metal fitting 26, and therefore, not only is it troublesome to separate the pressure jig, but it is also difficult to apply pressure. When separating the pressure jig, the insulation ring 24, anode metal fitting 23, and cathode metal fitting 26
Since the bonding interface with the steel sheet is subjected to tensile force, there is a problem in that the bonding strength and the dimensional accuracy of the assembly are reduced.
この問題を解決するために、例えば陽極金具２３及び陰
極金具２６の素材をステンレスとすれば、加圧治具との
接着を防止できるが、電気抵抗が高くなり電池効率が低
下するばかりか、熱伝導も低下し、電池の温度分布が不
均一になるという問題がある。In order to solve this problem, for example, if the material of the anode metal fitting 23 and the cathode metal fitting 26 is made of stainless steel, it is possible to prevent adhesion with the pressure jig, but this not only increases electrical resistance and reduces battery efficiency, but also increases heat resistance. There is also the problem that conductivity is reduced and the temperature distribution of the battery becomes uneven.
また、前記熱圧接合時に陽極金具２３及びｌｌ！ｌ全極
２６の円筒部２３ａ、２６ａが加圧力の影響で半径方向
へ脹らみ、それをＷＲ＠する必要があり、作業効率が低
下するという問題があった。Also, during the thermopressure bonding, the anode fittings 23 and ll! The cylindrical portions 23a and 26a of the all poles 26 swell in the radial direction due to the influence of the pressurizing force, and it is necessary to WR@, which causes a problem that work efficiency decreases.
さらに、中間接合リングが加圧時において陰極側は外周
方向へ、また陽極側は内周方向へそれぞれ広がろうとす
るが、この広がり範囲を規制するものがなかったため、
陰極及び陽極の絶縁が不確実であった。Furthermore, when the intermediate bonding ring is pressurized, the cathode side tends to expand toward the outer circumference, and the anode side tends to expand toward the inner circumference, but there was nothing to restrict this expansion range.
The insulation of the cathode and anode was unreliable.
この発明の目的は陽極金具及び陰極金具と、接合用加圧
治具との接着を防止するとともに、陽極金具及び陰極金
具の半径方向への脹らみ及び中間接合リングが潰れる際
の広がりを抑制して加工精度、作業効率及び陰極、陽極
の絶縁性を確実に向上することができるナトリウム−硫
黄電池における絶縁リングと！極金具の熱圧接合方法を
提供することにある。The purpose of this invention is to prevent adhesion between anode metal fittings and cathode metal fittings and a pressurizing jig for bonding, as well as suppress radial swelling of the anode metal fittings and cathode metal fittings and spread when the intermediate bonding ring collapses. An insulation ring for sodium-sulfur batteries that can reliably improve processing accuracy, work efficiency, and insulation of the cathode and anode! An object of the present invention is to provide a method for thermopressure bonding of metal fittings.
［課Ｕを解決するための手段］
請求項１記載の発明は、上記目的を達成するため、絶縁
リングに対し、円筒部とフランジ部を有するｔ４極金具
の前記フランジ部を熱圧接合するに際し、前記電極金具
と接合用加圧治具との間に、ステンレスプレートを介在
させるという方法を採っている。[Means for Solving Problem U] In order to achieve the above object, the invention according to claim 1 provides a method for thermopressure welding the flange portion of a t4 pole fitting having a cylindrical portion and a flange portion to an insulating ring. , a method is adopted in which a stainless steel plate is interposed between the electrode fitting and the bonding pressurizing jig.
また、゛請求項２記載の発明は、請求項１記載の発明に
おいて、前記絶縁リングと前記電極金具のフランジ部と
の間に中間接合リングを介在させ、さらに、前記ステン
レスプレートの外周縁または内周縁に形成された円筒部
により、前記フランジ部の外周縁または内周縁及び前記
中間接合リングの外周縁または内周縁を覆って熱圧接合
するという方法を採っている。Further, the invention according to claim 2 is the invention according to claim 1, in which an intermediate joining ring is interposed between the insulating ring and the flange portion of the electrode fitting, and further, A method is employed in which a cylindrical portion formed on the periphery covers the outer periphery or inner periphery of the flange portion and the outer periphery or inner periphery of the intermediate joining ring and performs thermopressure welding.
また、請求項３記載の発明は、請求項２記載の発明にお
いて、前記ステンレスプレートの外周縁または内周縁に
形成した円筒部の底面からの高さを、該底面から絶縁リ
ングの端面までの距離よりも長く設定するという方法を
採っている。Further, the invention according to claim 3 is the invention according to claim 2, in which the height from the bottom surface of the cylindrical portion formed on the outer peripheral edge or the inner peripheral edge of the stainless steel plate is defined as the distance from the bottom surface to the end surface of the insulating ring. We have adopted a method of setting it longer than .
さらに、請求項４記載の発明は、請求項２記載の発明に
おいて、前記電極金具の円筒部の外周面または内周面に
対し、前記ステンレスプレートに近接してステンレスリ
ングを嵌合するという方法を採っている。Furthermore, the invention according to claim 4 is the invention according to claim 2, in which a stainless steel ring is fitted to the outer circumferential surface or inner circumferential surface of the cylindrical portion of the electrode fitting in proximity to the stainless steel plate. I'm picking it up.
［作 用］
請求項１記載の発明は、陽極金具及び陰極金具と熱圧接
合用加圧治具との間に両者の引き離しを容易にするステ
ンレスプレートを介在させたので、熱圧接合後の加圧治
具の引き離しか迅速に、しかも陽極金具及び陰極金具に
過大な引張力を加えることなく行われ、作業能率が向上
するとともに、絶縁リングと両＠極金具との組付は精度
が向上する。[Function] The invention as claimed in claim 1 has a stainless steel plate interposed between the anode metal fitting, the cathode metal fitting, and the pressure jig for thermopressure bonding to facilitate the separation of the two. The pressure jig can be separated quickly and without applying excessive tensile force to the anode and cathode metal fittings, improving work efficiency and improving precision in assembling the insulating ring and both electrode metal fittings. .
請求項２記載の発明は、ステンレスプレートの内周縁ま
たは外周縁に形成された円筒部により、中間接合リング
の潰れによる広がりを制限して陰極金具及び陽極金具の
絶縁性を向上させることができ、さらに、絶縁リングと
陰極金具及び陽極金具との接合面付近の両金具の膨らみ
を防止して組付精度の向上を図ることができる。The invention according to claim 2 is capable of improving the insulation properties of the cathode metal fitting and the anode metal fitting by limiting the spread due to collapse of the intermediate joining ring by the cylindrical portion formed on the inner peripheral edge or the outer peripheral edge of the stainless steel plate, Furthermore, it is possible to prevent the insulating ring, the cathode metal fitting, and the anode metal fitting from bulging in the vicinity of their joint surfaces, thereby improving assembly accuracy.
請求項３記載の発明は、前記絶縁リングと陰極金具及び
陽極金具との接合面付近の両金具の膨らみをさらに確実
に防止して組付精度の向上を図ることができる。According to the third aspect of the present invention, it is possible to more reliably prevent bulges of the insulating ring, the cathode metal fitting, and the anode metal fitting in the vicinity of the joint surfaces of the two metal fittings, thereby improving assembly accuracy.
請求項４記載の発明は、前記両口筒部の脹らみが確実に
防止されるので、組付は精度がさらに向上する。According to the invention as set forth in claim 4, since the double-ended cylindrical portions are reliably prevented from bulging, the accuracy of assembly is further improved.
［実施例］
以下、ナトリウム−硫黄電池を具体化した一実施例を第
１図〜第３図に基づいて説明する。[Example] Hereinafter, an example embodying a sodium-sulfur battery will be described based on FIGS. 1 to 3.
第１，３図に示すように、α−アルミナ製の絶縁リング
１の下端面１ａにはアルミニウム合金製の中間接合リン
グ２を介して、円筒部３ａとフランジ部３ｂとからなる
陽極金具３の前記フランジ部３ｂが後に詳述する熱圧接
合方法で固定されている。又、この陽極金具３の円筒部
３ａには有底縦長円筒状をなす陽極容器４の上部内周面
が嵌合され、両者の上端縁は溶接部５Ａにより密封され
ている。As shown in FIGS. 1 and 3, an anode fitting 3 consisting of a cylindrical portion 3a and a flange portion 3b is connected to the lower end surface 1a of an insulating ring 1 made of α-alumina via an intermediate joining ring 2 made of an aluminum alloy. The flange portion 3b is fixed by a thermopressure bonding method which will be described in detail later. Further, the upper inner circumferential surface of an anode container 4 having a vertically elongated cylindrical shape with a bottom is fitted into the cylindrical portion 3a of the anode fitting 3, and the upper edges of both are sealed by a welded portion 5A.
又、前記絶縁リング１の内周面にはβ″−アルミナ製の
有底袋管状をなす固体電解質管６の上端外周面がガラス
融着などにより接着固定されている。Further, on the inner circumferential surface of the insulating ring 1, the outer circumferential surface of the upper end of a solid electrolyte tube 6 made of β''-alumina and having the shape of a bottomed bag tube is adhesively fixed by glass welding or the like.
前記絶縁リング１の上端面１ｂにはアルミニウム合金製
の中間接合リング７を介して円筒部８ａとフランジ部８
ｂとからなる陰極金具８の前記フランジ部８ｂが後に詳
述する熱圧接合方法で固定されている。A cylindrical portion 8a and a flange portion 8 are connected to the upper end surface 1b of the insulating ring 1 via an intermediate joint ring 7 made of aluminum alloy.
The flange portion 8b of the cathode fitting 8 consisting of the flange portion 8b is fixed by a thermopressure bonding method which will be described in detail later.
又、前記円筒部８ａの内周面には、円筒部９ａと上板部
９ｂとからなる帽状金具９が嵌合されている。そして、
両口筒部８ａ、９ａの上端縁全体を溶接部５Ｂにより密
封している。Further, a cap-shaped metal fitting 9 consisting of a cylindrical portion 9a and an upper plate portion 9b is fitted onto the inner circumferential surface of the cylindrical portion 8a. and,
The entire upper end edge of the double-ended cylindrical portions 8a, 9a is sealed by a welded portion 5B.
前記絶縁リング１の上面内側角部には、前記中間接合リ
ング７の食い切りを防止するための面取部ＩＣが形成さ
れている。この面取部１ｃの半径Ｒは０．４±Ｏ，ｌａ
ｍに設定されている。A chamfer IC is formed at the inner corner of the upper surface of the insulating ring 1 to prevent the intermediate joining ring 7 from being cut away. The radius R of this chamfered portion 1c is 0.4±O, la
m is set.
前記陽極容器４と固体電解質管６との間に形成された陽
極室Ｒ１内には陽極活物質としての溶融硫黄Ｓを含浸さ
せたカーボンマットなどの陽極用導電材Ｍが収納されて
いる。また、前記陰極室Ｒ２内には、陰極活物質として
の金属ナトリウムＮａが貯蔵されている。In an anode chamber R1 formed between the anode container 4 and the solid electrolyte tube 6, a conductive material M for an anode such as a carbon mat impregnated with molten sulfur S as an anode active material is housed. Moreover, metallic sodium Na as a cathode active material is stored in the cathode chamber R2.
ナトリウム−硫黄電池の充電完了状態においては、大半
のナトリウムが第３図に実線で示すように陰極室Ｒ２内
に貯留され、陽極用導電材Ｍ内には溶融硫黄Ｓが存在し
ている。この状態で放電を開始すると、陰極室Ｒ２内の
ナトリウムＮａがナトリウムイオンとなって固体電解質
管６を透過し、陽極用導電材Ｍ内の硫黄Ｓと反応し多硫
化ナトリウムを生成する。When the sodium-sulfur battery is fully charged, most of the sodium is stored in the cathode chamber R2, as shown by the solid line in FIG. 3, and molten sulfur S is present in the anode conductive material M. When discharge is started in this state, sodium Na in the cathode chamber R2 turns into sodium ions, passes through the solid electrolyte tube 6, reacts with sulfur S in the anode conductive material M, and generates sodium polysulfide.
次に、第１図及び第２図に基づいて本発明の熱圧接合方
法について説明する。Next, the thermopressure bonding method of the present invention will be explained based on FIGS. 1 and 2.
第１図に示すように、絶縁リング１の下端面１ａには中
間接合リング２、陽極金具３、円筒部１２ａとフランジ
部１２ｂとからなるステンレスプレート１２及び加圧治
具１０の順に配置する。As shown in FIG. 1, an intermediate joining ring 2, an anode fitting 3, a stainless steel plate 12 consisting of a cylindrical portion 12a and a flange portion 12b, and a pressing jig 10 are arranged in this order on the lower end surface 1a of the insulating ring 1.
また、絶縁リング１の上端面１ｂには中間接合リング７
、陰極金具８、円筒部１３ａとフランジ部１３ｂとから
なるステンレスリング１３及び加圧治具１１の順に配置
する。Further, an intermediate joining ring 7 is provided on the upper end surface 1b of the insulating ring 1.
, the cathode fitting 8, the stainless steel ring 13 consisting of the cylindrical portion 13a and the flange portion 13b, and the pressing jig 11 are arranged in this order.
そして、約６００℃の不活性ガス雰囲気中で加圧治具１
０，１１により前記各部材を互いに加圧しながら、絶縁
リング１と陽極金具３を接合リング２の作用により熱圧
接合するとともに、絶縁リングｌと陰極金具８を接合リ
ング７の作用により熱圧接する。Then, the pressurizing jig 1 is placed in an inert gas atmosphere at about 600°C.
0 and 11, the insulating ring 1 and the anode fitting 3 are joined by heat and pressure by the action of the joining ring 2, and the insulating ring 1 and the cathode fitting 8 are joined by heat and pressure by the action of the joining ring 7. .
前記実施例ではステンレスプレート１２．１３を使用し
たので、陽極金具３と加圧治具１０の接着が防止される
とともに、陰極金具８と加圧治具１１の接着が防止され
、従って、熱圧接作業が容易になるとともに、加圧治具
１０，１１の分離時に陽極金具３や陰極金具８に無理な
力が作用するのをなくして、接合強度の低下を抑制し、
さらに、組付は精度を維持することができる。Since the stainless steel plates 12 and 13 were used in the above embodiment, adhesion between the anode metal fitting 3 and the pressure jig 10 was prevented, and adhesion between the cathode metal fitting 8 and the pressure jig 11 was also prevented. This not only makes the work easier, but also prevents excessive force from being applied to the anode metal fitting 3 and the cathode metal fitting 8 when separating the pressurizing jigs 10 and 11, thereby suppressing a decrease in bonding strength.
Furthermore, assembly accuracy can be maintained.
また、前記実施例では前記ステンレスプレート１２．１
３の円筒部１２ａ、１３ａにより、中間接合リング２．
７の潰れによる広がりを制限して陽極金具３及び陰極金
具８の絶縁性を向上させることができる。Further, in the embodiment, the stainless steel plate 12.1
The intermediate joining ring 2.
The insulation properties of the anode metal fitting 3 and the cathode metal fitting 8 can be improved by limiting the spread caused by the crushing of the metal parts 7.
次に、本発明の別の実施例を第４図〜第６図に基づいて
説明す゛る。Next, another embodiment of the present invention will be described based on FIGS. 4 to 6.
第４図に示す別例は、陽極金具３の円筒部３ａの外周面
に段差部３Ｃを形成し、該段差部３Ｃに対し前記ステン
レスプレート１２の外周縁に一体形成した円筒部１２ｃ
を嵌合して、陽極金具３の円筒部３ａの膨らみを防止す
るようにしている。In another example shown in FIG. 4, a stepped portion 3C is formed on the outer peripheral surface of the cylindrical portion 3a of the anode fitting 3, and a cylindrical portion 12c is integrally formed on the outer peripheral edge of the stainless steel plate 12 with respect to the stepped portion 3C.
are fitted to prevent the cylindrical portion 3a of the anode fitting 3 from bulging.
また、陰極金具８側にも同様に段差部８Ｃを形成すると
ともに、ステンレスプレート１３の内周縁に対し前記段
差部８Ｃに係合される円筒部１３ｃを一体に形成してい
る。Further, a stepped portion 8C is similarly formed on the cathode fitting 8 side, and a cylindrical portion 13c that is engaged with the stepped portion 8C is integrally formed with the inner peripheral edge of the stainless steel plate 13.
さらに、前記円筒部１２ｃ、１３ｃの底面１２ｄ１３ｄ
からの高さＨ１を、前記底面１２ｄ、１３ｄから絶縁リ
ング１の下端面１ａ、上端面１ｂまでの距ＭＨ２と同じ
かそれよりも長く設定することにより、円筒部３ａ、ｇ
ａの膨らみをより確実に防止して、組付精度の向上を図
っている。 第５図に示す別例は、第４図に示す別例の
円筒部１２Ｃ５１３ｃと同様のａ能を有するステンレス
リング１４．１５を単独に形成して段差部３ｃ、８ｃに
嵌合して熱圧接合するものである。Further, the bottom surfaces 12d13d of the cylindrical portions 12c and 13c
By setting the height H1 from the bottom surfaces 12d and 13d to the distance MH2 from the bottom surfaces 12d and 13d to the lower end surface 1a and the upper end surface 1b of the insulating ring 1, the cylindrical portions 3a, g
The bulge of a is more reliably prevented and assembly accuracy is improved. In another example shown in FIG. 5, a stainless steel ring 14.15 having the same a function as the cylindrical portion 12C513c of the other example shown in FIG. It is meant to be joined.
第６図に示す別例は、第４図に示す別例において、第５
図で述べたステンレスリング１４．１５を使用するとと
もに、陰極金具８の円筒部８ａ内周面に前記リング１５
を嵌入している。従って、この実施例は陽極金具３の熱
圧接合時の膨らみ防止効果がさらに向上するとともに、
陰極金具８に段差部８ｃを形成しなくてもよいので、製
造が容易となる。The other example shown in FIG. 6 is the fifth one in the other example shown in FIG.
In addition to using the stainless steel rings 14 and 15 described in the figure, the ring 15 is attached to the inner peripheral surface of the cylindrical portion 8a of the cathode fitting 8.
It is embedded. Therefore, in this embodiment, the effect of preventing the anode fitting 3 from swelling during thermopressure welding is further improved, and
Since it is not necessary to form the stepped portion 8c on the cathode fitting 8, manufacturing becomes easy.
なお、前記ステンレスプレート１２．１３は熱圧接合後
、陽極金具３及び陰極金具８に接着されたまま残る。Note that the stainless steel plates 12 and 13 remain bonded to the anode metal fitting 3 and the cathode metal fitting 8 after thermopressure bonding.
［発明の効果］
以上詳述したように、請求項１記載の発明は、絶縁リン
グと陽極金具及び陰極金具の接合強度を向上することが
できるとともに、絶縁リングと陽極金具及び陰極金具の
組付は精度を向上することができ、電池としての耐久信
頼性を向上することができるすることができる効果があ
る。[Effects of the Invention] As detailed above, the invention according to claim 1 can improve the bonding strength between the insulating ring, the anode fitting, and the cathode fitting, and also improve the assembly of the insulating ring, the anode fitting, and the cathode fitting. This has the effect of improving accuracy and improving durability and reliability as a battery.
請求項２記載の発明は、ステンレスプレートの内周縁ま
たは外周縁に形成された円筒部により、中間接合リング
の潰れによる広がりを制限して陰極金具及び陽極金具の
絶縁性を向上させることができ、さらに、絶縁リングと
陰極金具及び陽極金具との接合面付近の両金具の膨らみ
を防止して組付精度の向上を図ることができる効果があ
る。The invention according to claim 2 is capable of improving the insulation properties of the cathode metal fitting and the anode metal fitting by limiting the spread due to collapse of the intermediate joining ring by the cylindrical portion formed on the inner peripheral edge or the outer peripheral edge of the stainless steel plate, Furthermore, it is possible to prevent the insulating ring, the cathode metal fitting, and the anode metal fitting from bulging in the vicinity of their joint surfaces, thereby improving assembly accuracy.
請求項３記載の発明は、前記絶縁リングと陰極金具及び
陽極金具との接合面付近の両金具の膨らみをさらに確実
に防止して組付精度の向上を図ることができる効果があ
る。The invention as set forth in claim 3 has the effect that it is possible to further reliably prevent bulges of the insulating ring, the cathode metal fitting, and the anode metal fitting in the vicinity of the joint surfaces of the two metal fittings, thereby improving assembly accuracy.
請求項４記載の発明は、前記内円筒部の脹らみが確実に
防止されるので、組付は精度をさらに向上することがで
きる効果がある。The invention as set forth in claim 4 has the effect that the assembly accuracy can be further improved since the inner cylindrical portion is reliably prevented from swelling.
第１図はこの発明を具体化したナトリウム−硫黄電池の
一実施例を示す要部のみの熱圧接合時の断面図、第２図
は要部の分解斜視図、第３図はすトリウム−硫黄電池全
体を示す中央部縦断面図、第４図〜第６図はそれぞれ本
発明の別例を示す要部のみの断面図、第７図は従来例を
示す中央部縦断面図である。
１・・・絶縁リング、１ａ・・・下端面、１ｂ・・・上
端面、２．７・・・中間接合リング、３・・・陽極容器
、３ａ・・・円筒部、３ｂ・・・フランジ部、４・・・
陽極容器、６・・・固体電解質管、８・・・陰極金具、
８ａ・・・円筒部１．８ｂ・・・フランジ部、１０．１
１・・・加圧治具、１２゜１３・・・ステンレスプレー
ト、１２ａ、１２ｃ。
１３ａ、１３ｃｍ−−円筒部、１２ｂ、１３ｂ・・・フ
ランジ部、１２ｄ、１３ｄ・・・底面、１４．１５・・
・ステンレスリング、Ｍ・・・陽極用導電材、Ｒ１・・
・陽極室、Ｒ２・・・陰極室。
特許出願人 日本碍子 株式会社代理人 弁理
士 恩１）博宣
１２ｇｍFig. 1 is a sectional view of only the main parts of an embodiment of the sodium-sulfur battery embodying the present invention during thermo-pressure bonding, Fig. 2 is an exploded perspective view of the main parts, and Fig. 3 is a sodium-sulfur battery that embodies the present invention. FIGS. 4 to 6 are cross-sectional views of only essential parts showing other examples of the present invention, and FIG. 7 is a vertical cross-sectional view of the center showing a conventional example. DESCRIPTION OF SYMBOLS 1... Insulating ring, 1a... Lower end surface, 1b... Upper end surface, 2.7... Intermediate joining ring, 3... Anode container, 3a... Cylindrical part, 3b... Flange Part, 4...
Anode container, 6... solid electrolyte tube, 8... cathode metal fitting,
8a... Cylindrical part 1.8b... Flange part, 10.1
1... Pressure jig, 12° 13... Stainless steel plate, 12a, 12c. 13a, 13cm--cylindrical part, 12b, 13b... flange part, 12d, 13d... bottom surface, 14.15...
・Stainless steel ring, M...conductive material for anode, R1...
・Anode chamber, R2...Cathode chamber. Patent applicant Nippon Insulator Co., Ltd. Agent Patent attorney On 1) Hironobu 12gm
Claims (1)
フランジ部（３ｂ、８ｂ）を有する電極金具（３、８）
の前記フランジ部（３ｂ、８ｂ）を熱圧接合するに際し
、前記電極金具（３、８）と接合用加圧治具（１０、１
１）との間に、ステンレスプレート（１２、１３）を介
在させることを特徴とするナトリウム−硫黄電池の熱圧
接合方法。 ２、前記絶縁リング（１）と前記電極金具（３、８）の
フランジ部（３ｂ、８ｂ）との間に中間接合リング（２
、７）を介在させ、さらに、前記ステンレスプレート（
１２、１３）の外周縁または内周縁に形成された円筒部
（１２ａ、１３ａ）により、前記フランジ部（３ｂ、８
ｂ）の外周縁または内周縁及び前記中間接合リング（２
、７）の外周縁または内周縁を覆って熱圧接合すること
を特徴とする請求項１記載のナトリウム−硫黄電池の熱
圧接合方法。 ３、前記ステンレスプレート（１２、１３）の外周縁ま
たは内周縁に形成した円筒部（１２ｃ、１３ｃ）の底面
（１２ｄ、１３ｄ）からの高さ（Ｈ１）を、該底面（１
２ｄ、１３ｄ）から絶縁リング（１）の端面（１ａ、１
ｂ）までの距離（Ｈ２）よりも長く設定したことを特徴
とする請求項２記載のナトリウム−硫黄電池の熱圧接合
方法。 ４、前記電極金具（３、８）の円筒部（３ａ、８ａ）の
外周面または内周面に対し、前記ステンレスプレート（
１２、１３）に近接してステンレスリング（１４、１５
）を嵌合することを特徴とする請求項２記載のナトリウ
ム−硫黄電池の熱圧接合方法。[Claims] 1. Electrode fittings (3, 8) having cylindrical portions (3a, 8a) and flange portions (3b, 8b) for insulating ring (1)
When joining the flange portions (3b, 8b) by heat and pressure, the electrode fittings (3, 8) and the joining press jig (10, 1
1) A method for thermopressure bonding of a sodium-sulfur battery, characterized in that stainless steel plates (12, 13) are interposed between the two. 2. Between the insulating ring (1) and the flange portions (3b, 8b) of the electrode fittings (3, 8)
, 7), and further, the stainless steel plate (
The flange portions (3b, 8
b) and the intermediate joining ring (2).
, 7), wherein the hot-pressure bonding is carried out by covering the outer peripheral edge or the inner peripheral edge of the sodium-sulfur battery. 3. The height (H1) from the bottom surface (12d, 13d) of the cylindrical portion (12c, 13c) formed on the outer peripheral edge or inner peripheral edge of the stainless steel plate (12, 13) is calculated from the bottom surface (1
2d, 13d) to the end face (1a, 1) of the insulating ring (1)
3. The method for hot-pressure bonding of a sodium-sulfur battery according to claim 2, wherein the distance (H2) to (b) is set longer than the distance (H2). 4. Place the stainless steel plate (
Stainless steel rings (14, 15) are placed near the rings (12, 13).
3. The method for hot-pressure bonding of a sodium-sulfur battery according to claim 2, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63321334A JPH079816B2 (en) | 1988-12-19 | 1988-12-19 | Thermo-compression bonding method of insulating ring and electrode fitting in sodium-sulfur battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63321334A JPH079816B2 (en) | 1988-12-19 | 1988-12-19 | Thermo-compression bonding method of insulating ring and electrode fitting in sodium-sulfur battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02165575A true JPH02165575A (en) | 1990-06-26 |
| JPH079816B2 JPH079816B2 (en) | 1995-02-01 |
Family
ID=18131430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63321334A Expired - Lifetime JPH079816B2 (en) | 1988-12-19 | 1988-12-19 | Thermo-compression bonding method of insulating ring and electrode fitting in sodium-sulfur battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079816B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54152125A (en) * | 1978-04-20 | 1979-11-30 | Gen Electric | Sulfur electrode container and method of making same |
| JPS6116483A (en) * | 1984-06-26 | 1986-01-24 | クロライド サイレント パワー リミテイツド | Sodium-sulfur battery and method of producing same |
| JPS62126568A (en) * | 1985-11-27 | 1987-06-08 | Hitachi Ltd | Diffusion joining method of fe-al2o3 for sodium-sulfur battery |
-
1988
- 1988-12-19 JP JP63321334A patent/JPH079816B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54152125A (en) * | 1978-04-20 | 1979-11-30 | Gen Electric | Sulfur electrode container and method of making same |
| JPS6116483A (en) * | 1984-06-26 | 1986-01-24 | クロライド サイレント パワー リミテイツド | Sodium-sulfur battery and method of producing same |
| JPS62126568A (en) * | 1985-11-27 | 1987-06-08 | Hitachi Ltd | Diffusion joining method of fe-al2o3 for sodium-sulfur battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079816B2 (en) | 1995-02-01 |
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