JPS63294671A - Sodium-sulfur cell - Google Patents
Sodium-sulfur cellInfo
- Publication number
- JPS63294671A JPS63294671A JP62130954A JP13095487A JPS63294671A JP S63294671 A JPS63294671 A JP S63294671A JP 62130954 A JP62130954 A JP 62130954A JP 13095487 A JP13095487 A JP 13095487A JP S63294671 A JPS63294671 A JP S63294671A
- Authority
- JP
- Japan
- Prior art keywords
- sodium
- solid electrolyte
- electrolyte tube
- tube
- solid electrolytic
- 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 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 claims abstract description 78
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 78
- 239000011734 sodium Substances 0.000 claims abstract description 78
- 239000007784 solid electrolyte Substances 0.000 claims description 52
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 description 13
- 239000010935 stainless steel Substances 0.000 description 13
- 230000010287 polarization Effects 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 229910001415 sodium ion Inorganic materials 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 description 4
- 239000013543 active substance Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000873 Beta-alumina solid electrolyte 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000126 substance 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)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
発明の目的
（産業上の利用分野）
本発明は蓄電池として利用されるナトリウム−硫黄電池
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a sodium-sulfur battery used as a storage battery.
（従来の技術）
従来、ナトリウム−硫黄電池としては、上部に円筒状の
陰極室（以下リザーバーという）、下部に同じく円筒状
の陽極容器を配置し、同陽極容器の内側に固体電解質管
を設けた構造のものが使用されていた。そして、固体電
解質管内及びリザーバー内にステンレス製のウィックを
９７％前後の空孔率で挿入し、陰掻作用物質であるナト
リウムを充填していた。(Prior art) Conventionally, a sodium-sulfur battery has a cylindrical cathode chamber (hereinafter referred to as a reservoir) in the upper part, a cylindrical anode container in the lower part, and a solid electrolyte tube inside the anode container. A similar structure was used. A stainless steel wick with a porosity of about 97% was inserted into the solid electrolyte tube and the reservoir, and was filled with sodium, which is a scrotchial substance.
一方、陽極容器内には陽極作用物質である硫黄が陽極用
導電材としてのカーボンマットに含浸されている。そし
て、電池の放電時にはナトリウムがナトリウムイオンと
なって固体電解質管を通過して陽極室内に入り、そこで
硫黄と反応して多硫化ナトリウムを生成し、逆に充電時
には多硫化ナトリウム中のナトリウムイオンが固体電解
質管を通過して固体電解質管内へ戻る。On the other hand, in the anode container, a carbon mat serving as a conductive material for the anode is impregnated with sulfur, which is an anode active substance. When the battery is discharged, sodium becomes sodium ions and passes through the solid electrolyte tube into the anode chamber, where it reacts with sulfur to produce sodium polysulfide. Conversely, when the battery is charged, the sodium ions in the sodium polysulfide It passes through the solid electrolyte tube and returns to the solid electrolyte tube.
（発明が解決しようとする問題点）
上記従来技術においては、ステンレス製ウィックの存在
自体及びその不均一充填が原因となって、リザーバーか
ら固体電解質管内へのナトリウムの移動がスムーズでな
い上に、ステンレス製つインクを固体電解質管内とりザ
ーバー内の全体に均一に充填しにくいことから、電池の
充放電特性が不安定になったり、個々の電池の容量のバ
ラツキが大きいという問題点があった。また、ステンレ
ス製つインクを充填するのに手間取るために電池の生産
性が劣るという問題点もあった。(Problems to be Solved by the Invention) In the above-mentioned conventional technology, the movement of sodium from the reservoir into the solid electrolyte tube is not smooth due to the presence of the stainless steel wick itself and its uneven filling, and the stainless steel Since it is difficult to uniformly fill the entire interior of the solid electrolyte tube and reservoir with the manufactured ink, there are problems in that the charging and discharging characteristics of the battery become unstable and the capacity of individual batteries varies widely. Another problem was that the productivity of the battery was poor because it took time to fill the stainless steel ink.
発明の構成
（問題点を解決するための手段）
本発明、は上記問題点を解決するために、金属製ウィッ
ク又はその焼結体の少なくとも外周を、導電性を有し多
数の孔を有する外皮で包んでなる筒状のナトリウム保持
体を固体電解質管の内周に沿うように配置するという構
成を採用している。Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides at least the outer periphery of a metal wick or a sintered body thereof with a conductive outer skin having a large number of holes. A structure is adopted in which a cylindrical sodium holder made of aluminum is placed along the inner periphery of the solid electrolyte tube.
（作用）
上記構成を採用したことにより、ナトリウム保持体が外
皮で包まれているので、固体電解質管の内周に沿うよう
に容易に挿入することができ、陰極作用物質であるナト
リウムはりザーバーと固体電解質管内との間に中空が形
成されているため、リザーバーから固体電解質管内にス
ムーズに移動する。また、放電末期に固体電解質管内側
のナトリウムの液面が下がっても固体電解質管の内壁と
外皮との密着性を良好に形成できるため、ウィック又は
その焼結体を浸み上がってくるナトリウムが固体電解質
管の表面に常にスムーズに供給されてナトリウムの利用
率が向上する。また、ナトリウム保持体は従来のように
固体電解質管内でウィック又はその焼結体の形状がはじ
めて形成されるのではなく、あらかじめ導電性を有し、
多数の孔を有する外皮でウィック又はその焼結体を包み
こむことにより製造するため、常に一定の多孔度で均一
な形状あものが得られる。(Function) By adopting the above configuration, the sodium holder is wrapped in an outer skin, so it can be easily inserted along the inner circumference of the solid electrolyte tube, and the sodium holder, which is a cathode active substance, can be easily inserted into the tube. Since a hollow space is formed between the solid electrolyte and the inside of the tube, it moves smoothly from the reservoir into the solid electrolyte tube. In addition, even if the sodium level inside the solid electrolyte tube drops at the end of discharge, good adhesion can be formed between the inner wall of the solid electrolyte tube and the outer skin, so that the sodium that seeps up through the wick or its sintered body will not be absorbed. Sodium is constantly and smoothly supplied to the surface of the solid electrolyte tube, improving the utilization rate of sodium. In addition, the sodium holder is not formed in the shape of a wick or its sintered body for the first time in a solid electrolyte tube as in the past, but has conductivity in advance.
Since it is manufactured by enclosing the wick or its sintered body in a shell having a large number of holes, a uniform shape and constant porosity can always be obtained.
（実施例）
以下に本発明を具体化した一実施例を第１図〜第５図を
用いて説明する。(Example) An example embodying the present invention will be described below with reference to FIGS. 1 to 5.
第１図に示すように、円筒状のナトリウム−硫黄電池の
下部には円筒状の陽極容器２が配設され、その底面２ａ
の中央部には陽極端子１が固着されている。陽極容器２
の上端部にはαアルミナ製の絶縁リング３が固着されて
いる。同′ｌｌ３ｍリング３の上部にはりザーバ−４が
固着されている。また、絶縁リング３の内周部には有底
円筒状のβアルミナ製の固体電解質管５が固着され、陽
極容器２内の底部まで延びている。As shown in FIG. 1, a cylindrical anode container 2 is disposed at the bottom of the cylindrical sodium-sulfur battery, and its bottom surface 2a
An anode terminal 1 is fixed to the center of the tube. Anode container 2
An insulating ring 3 made of α-alumina is fixed to the upper end of the holder. A lever 4 is fixed to the upper part of the 3m ring 3. Further, a solid electrolyte tube 5 made of β-alumina and having a cylindrical shape with a bottom is fixed to the inner circumference of the insulating ring 3 and extends to the bottom of the anode container 2 .
同固体電解質管５の内側にはナトリウム保持体６が固体
電解質管５の内周に沿うように挿入されている。A sodium holder 6 is inserted inside the solid electrolyte tube 5 so as to extend along the inner periphery of the solid electrolyte tube 5 .
同ナトリウム保持体６について説明すると、第２図に示
すようにナトリウム保持体６は導電性を有し多数の孔を
有する外皮として、固体電解質管５の内周に沿って密着
挿入できる寸法で円筒状に形成された導電性の金１ｉｉ
７ （ステンレス製１００メツシユ金￥１４）を用い、
その内周部に圧縮成形された一定の厚さのステンレス製
ウィックで成形されたナトリウム保持体６が密着された
構造を有している。なお、ナトリウム保持体６は一定形
状に成形された焼結体であってもよい。To explain the sodium holder 6, as shown in FIG. conductive gold 1ii formed in the shape of
7 (stainless steel 100 mesh gold ¥14),
It has a structure in which a sodium holder 6 molded from a compression molded stainless steel wick having a constant thickness is tightly attached to its inner circumferential portion. Note that the sodium holder 6 may be a sintered body formed into a certain shape.
上記のように、あらかじめ成形されたナトリウム保持体
６は固体電解質管５の内周に沿って密着挿入され、ナト
リウム保持体６は固体電解質管５の内周部全体に接した
状態となる。そのような状態においては、第３図に示す
ようにナトリウム保持体６の外周に位置する導電性の金
網７が固体電解質管５に接している。As described above, the preformed sodium holder 6 is tightly inserted along the inner periphery of the solid electrolyte tube 5, so that the sodium holder 6 is in contact with the entire inner periphery of the solid electrolyte tube 5. In such a state, the conductive wire mesh 7 located on the outer periphery of the sodium holder 6 is in contact with the solid electrolyte tube 5, as shown in FIG.
そして、第１図に示すように同ナトリウム保持体６には
、その内側に満たされたナトリウムＮが含浸されている
。なお、固体電解質管５の下部にはステンレス製ウィッ
クがあらかじめ詰め込まれている。As shown in FIG. 1, the inside of the sodium holding body 6 is impregnated with sodium N. Note that a stainless steel wick is packed in the lower part of the solid electrolyte tube 5 in advance.
一方、陽極容器２と固体電解質管５で形成される空間に
はカーボン製の陽極成型体８が充填されている。同陽極
成型体８には、陽極作用物質としての硫黄が含浸されて
いる。On the other hand, a space formed by the anode container 2 and the solid electrolyte tube 5 is filled with an anode molded body 8 made of carbon. The anode molded body 8 is impregnated with sulfur as an anode active substance.
上記リザーバー４の上端部には上Ｗｔ４ａが形成
−され、同上蓋４ａの中央部には細長い円環状の陰極管
９が固着されており、その上端部は陰極端子９ａとなっ
ている。An upper Wt4a is formed at the upper end of the reservoir 4.
An elongated annular cathode tube 9 is fixed to the center of the upper lid 4a, and the upper end thereof serves as a cathode terminal 9a.
次に上記実施例の作用・効果について説明する。Next, the functions and effects of the above embodiment will be explained.
電池の放電時にはナトリウム保持体６に含浸されたナト
リウムＮがナトリウムイオンとなって固体電解質管５内
を通過して陽極成型体８内に入り、そこで硫黄と反応し
て多硫化ナトリウムが生成する。そして、電流は陽極端
子１から外部負荷を通って陰極端子９ａから陰極管９へ
向って流れる。When the battery is discharged, sodium N impregnated into the sodium holding body 6 becomes sodium ions, passes through the solid electrolyte tube 5, and enters the anode molded body 8, where it reacts with sulfur to produce sodium polysulfide. The current then flows from the anode terminal 1 through the external load and from the cathode terminal 9a to the cathode tube 9.
放電によってナトリウム保持体６中のナトリウ１Ｎは減
少するが、ナトリウム保持体６と陰極管９との間で形成
された空間に充填されているナトリウムＮから順次補充
される。Although the sodium 1N in the sodium holding body 6 decreases due to the discharge, the space formed between the sodium holding body 6 and the cathode tube 9 is sequentially replenished from the sodium N filled therein.
本発明においては、放電がｍ続してナトリウム保持体６
と陰極管９との間の空間に充填されたナトリウムＮの液
面が低下しても、ナトリウム保持体６中をナトリウムＮ
が浸み上がり、常に固体電解質管５内壁の上部までナト
リウムＮが供給されるので、放電の末期まで陰極の分極
は一定に保たれる。In the present invention, the discharge continues for m and the sodium holder 6
Even if the liquid level of sodium N filled in the space between the
Since sodium N is always supplied to the upper part of the inner wall of the solid electrolyte tube 5, the polarization of the cathode is kept constant until the end of discharge.
一方、電池の充電時には多硫化ナトリウム中のナトリウ
ムイオンは固体電解質管５を通ってナトリウム保持体６
へ戻る。On the other hand, when charging the battery, sodium ions in the sodium polysulfide pass through the solid electrolyte tube 5 into the sodium holding body 6.
Return to
前記導電性の金網７で包まれたナトリウム保持体６はあ
らかじめ定められた寸法で成形され、しかも固体電解質
管５と接する側に導電性の金′ｙＪ７を配置しているの
で、固体電解質管５内にその内周に沿って容易に密着挿
入することができるのに加えて、高価なステンレス製ウ
ィックの使用量を減少させることもでき、コストダウン
が可能である。The sodium holder 6 wrapped in the conductive wire mesh 7 is molded to have predetermined dimensions, and since the conductive gold J7 is disposed on the side in contact with the solid electrolyte tube 5, the solid electrolyte tube 5 In addition to being able to be easily and tightly inserted into the interior along the inner periphery of the wick, the amount of expensive stainless steel wicks used can be reduced, resulting in cost reduction.
また、前記のように、ナトリウムＮが固体電解質管５の
内周に沿って浸み上がり、固体電解質管５の表面に常に
スムーズに供給されるので、ナトリウム保持体６と陰極
管９で形成された空間中のナトリウムＮが減少したとき
もナトリウムＮの浸み上がり効果があるので、固体電解
質管５が広い面積で使用可能である。In addition, as described above, sodium N permeates along the inner circumference of the solid electrolyte tube 5 and is always smoothly supplied to the surface of the solid electrolyte tube 5, so that the sodium N is formed by the sodium holder 6 and the cathode tube 9. Even when the sodium N in the space decreases, there is an effect of the sodium N seeping up, so the solid electrolyte tube 5 can be used over a wide area.
従って、ナトリウムＮの利用率が向上し、その結果電池
の容量、効率も向上するとともに、電池の容量変動が小
さく、安定した特性が得られ、また個々の電池のバラツ
キも減少する。Therefore, the utilization rate of sodium N is improved, and as a result, the capacity and efficiency of the battery are improved, and at the same time, fluctuations in the battery capacity are small, stable characteristics are obtained, and variations among individual batteries are also reduced.
ここで上記ナトリウムＮの利用率に関して述べる。Here, the utilization rate of sodium N will be described.
本実施例におけるナトリウムＮの利用率を測定するため
に、次のような実験を行った。In order to measure the utilization rate of sodium N in this example, the following experiment was conducted.
まず、上記実施例で用いたナトリウム保持体６を挿入し
た固体電解質管５の内側にナトリウムＮを充填し、一方
陽極容器２と固体電解質管５で形成される空間にもナト
リウムＮを充填した。そして、３３０℃に昇温して放電
方向に８０ｍＡ／ａＪの電流を流した。すると、固体電
解質管５内側のナトリウムＮはナトリウムイオンとなっ
て、固体電解質管５を通過して陽極容器２内へ入る０通
電は固体電解質管５内側のナトリウムＮがほとんどなく
なるまで継続した。そして、分極電圧を測定し、ナトリ
ウム利用率との関係を求めた。その結果は第５図のＡに
示すとおりである。First, the inside of the solid electrolyte tube 5 into which the sodium holder 6 used in the above example was inserted was filled with sodium N, and the space formed by the anode container 2 and the solid electrolyte tube 5 was also filled with sodium N. Then, the temperature was raised to 330° C., and a current of 80 mA/aJ was passed in the discharge direction. Then, the sodium N inside the solid electrolyte tube 5 turned into sodium ions, which passed through the solid electrolyte tube 5 and entered the anode container 2. The zero energization continued until almost all the sodium N inside the solid electrolyte tube 5 disappeared. Then, the polarization voltage was measured and its relationship with the sodium utilization rate was determined. The results are shown in A of FIG.
なお、固体電解質管５内側のナトリウムＮがなくなると
、利用率は１００％である。Note that when the sodium N inside the solid electrolyte tube 5 is exhausted, the utilization rate is 100%.
一方、従来の構造の電池、即ち線径８μｍのステンレス
製ウィックを固体電解質管５の内側に空孔率９７％で充
填したものについて、上記と同様にしてナトリウム利用
率と分極電圧の関係を求め、その結果を第５図にＢとし
て併記した。On the other hand, for a battery with a conventional structure, that is, a stainless steel wick with a wire diameter of 8 μm filled inside the solid electrolyte tube 5 with a porosity of 97%, the relationship between the sodium utilization rate and the polarization voltage was determined in the same manner as above. The results are also shown in FIG. 5 as B.
第５図かられかるように、従来の電池では固体電解質管
５内側のナトリウムＮが減少するにつれて、固体電解質
管５の表面にナトリウムＮが供給される面積が小さくな
るので、電気抵抗が上昇して分極電圧が太き（なり、ま
たばらつきも大きくなる。As can be seen from FIG. 5, in conventional batteries, as the sodium N inside the solid electrolyte tube 5 decreases, the area to which sodium N is supplied to the surface of the solid electrolyte tube 5 becomes smaller, so the electrical resistance increases. As a result, the polarization voltage becomes thicker (and the variation becomes larger).
それに対して、本実施例ではナトリウムＮの利用率が９
０％以上まで分極電圧が一定であり、ナトリウムＮが十
分に利用されていることがわかる。In contrast, in this example, the utilization rate of sodium N was 9
It can be seen that the polarization voltage is constant up to 0% or more, and that sodium N is sufficiently utilized.
さらに、本実施例では固体電解質管５が破損してもナト
リウム保持体６は導電性の金１ｉｉ７で固体電解質管５
側が覆われているので、−気にナトリウムＮが漏洩する
ことがない、従って、ナトリウムＮと硫黄が接触して一
気に反応することがないので安全である。Furthermore, in this embodiment, even if the solid electrolyte tube 5 is damaged, the sodium holder 6 is made of conductive gold 1ii7 and the solid electrolyte tube 5 is
Since the sides are covered, there is no leakage of sodium N into the atmosphere. Therefore, it is safe because sodium N and sulfur do not come into contact and react all at once.
本発明は上記実施例に限定されず、次のように構成する
こともできる。The present invention is not limited to the above embodiments, but can also be configured as follows.
（１）上記実施例ではナトリウム保持体６は、外周部の
みに導電性の金網７を形成したものであったが、第４図
に示すようにナトリウム保持体６の外周部に加えて内周
部にも導電性の金ｙ４７を設けることができる。(1) In the above embodiment, the sodium holder 6 had a conductive wire mesh 7 formed only on the outer periphery, but as shown in FIG. Conductive gold Y47 can also be provided on the portion.
この場合には、ナトリウム保持体６としてのステンレス
製ウィックの保持強度が一層向上するとともに、安全性
が向上する。In this case, the holding strength of the stainless steel wick as the sodium holding body 6 is further improved, and safety is also improved.
（２）上記実施例では、ナトリウム保持体６は底面のな
い筒状のものであったが、底面まで一体に成形されたも
のを使用することもできる。(2) In the above embodiment, the sodium holder 6 was cylindrical without a bottom surface, but it is also possible to use one in which the bottom surface is integrally molded.
その場合には、固体電解質管５内の底部へあらかじめス
テンレス製ウィックを詰め込む必要がなく、ナトリウム
保持体６を固体電解質管５内へ挿入するだけで済む。In that case, there is no need to fill the bottom of the solid electrolyte tube 5 with a stainless steel wick in advance, and it is sufficient to simply insert the sodium holder 6 into the solid electrolyte tube 5.
（３）導電性を有し多数の孔を有する外皮として、上記
実施例では導電性の金網を用いたが、その材質、形状、
大きさ等は特に限定されず、またナトリウム保持体６と
して、上記実施例ではステンレス製つインクを用いたが
、それについても同様に特に限定されない、これらの条
件は電池の大きさ、形状、電池容量、固体電解質管の大
きさ、形状により決定される。(3) In the above example, a conductive wire mesh was used as the conductive outer skin having many holes, but its material, shape,
There are no particular limitations on the size, etc., and although stainless steel ink was used as the sodium holder 6 in the above embodiments, there are no particular limitations on it either. It is determined by the capacity, size and shape of the solid electrolyte tube.
発明の効果
本発明のナトリウム−硫黄電池は、全体が均一に成形さ
れたナトリウム保持体を固体電解質管内へ容易に挿入で
きるのに加えて、リザーバーと固体電解質管内との間に
中空が形成されているので、リザーバーから固体電解質
管内へナトリウムがスムーズに供給され、電池容量の変
動が小さく、安定した特性が得られるとともに、個々の
電池のバラツキが減少するという優れた効果を奏する。Effects of the Invention In the sodium-sulfur battery of the present invention, in addition to being able to easily insert a uniformly shaped sodium carrier into the solid electrolyte tube, a hollow space is formed between the reservoir and the solid electrolyte tube. As a result, sodium is smoothly supplied from the reservoir into the solid electrolyte tube, resulting in small fluctuations in battery capacity, stable characteristics, and reduced variations among individual batteries.
また固体電解質管が破損しても安全性が確保されるのに
加えて、ナトリウム保持体をあらかじめ成形できるので
、電池の組立が容易で生産性が向上し、高価なステンレ
ス製ウィックの使用量を減少させることができるので、
コストダウンをはかることができるとともに、作業性も
大幅に改善されるという効果も奏する。In addition to ensuring safety even if the solid electrolyte tube is damaged, the sodium holder can be formed in advance, making battery assembly easier, increasing productivity, and reducing the amount of expensive stainless steel wick used. Because it can be reduced,
Not only can costs be reduced, but workability is also significantly improved.
第１図は本発明のナトリウム−硫黄電池を示す断面図、
第２図はナトリウム保持体の斜視図、第３図はナトリウ
ム保持体と固体電解質管との関係を示す一部断面図、第
４図は本発明の別個を示すナトリウム保持体と固体電解
質管との関係を示す一部断面図、第５図はナトリウムＮ
の利用率と分極電圧との関係を示すグラフである。FIG. 1 is a sectional view showing the sodium-sulfur battery of the present invention;
Fig. 2 is a perspective view of the sodium holder, Fig. 3 is a partial sectional view showing the relationship between the sodium holder and the solid electrolyte tube, and Fig. 4 is a separate view of the sodium holder and the solid electrolyte tube of the present invention. Figure 5 is a partial cross-sectional view showing the relationship between sodium N
3 is a graph showing the relationship between the utilization rate and polarization voltage.
Claims (1)
、導電性を有し多数の孔を有する外皮（７）で包んでな
る筒状のナトリウム保持体（６）を固体電解質管（５）
の内周に沿うように配置したことを特徴とするナトリウ
ム−硫黄電池。1. A cylindrical sodium holder (6) formed by wrapping at least the outer periphery of a metal wick or its sintered body with a conductive outer skin (7) having a large number of holes, and a solid electrolyte tube (5)
A sodium-sulfur battery characterized by being arranged along the inner circumference of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62130954A JP2620238B2 (en) | 1987-05-27 | 1987-05-27 | Sodium-sulfur battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62130954A JP2620238B2 (en) | 1987-05-27 | 1987-05-27 | Sodium-sulfur battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63294671A true JPS63294671A (en) | 1988-12-01 |
| JP2620238B2 JP2620238B2 (en) | 1997-06-11 |
Family
ID=15046521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62130954A Expired - Lifetime JP2620238B2 (en) | 1987-05-27 | 1987-05-27 | Sodium-sulfur battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2620238B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0364857A (en) * | 1989-07-31 | 1991-03-20 | Agency Of Ind Science & Technol | Porous electrode structure |
| JPH05109432A (en) * | 1991-03-11 | 1993-04-30 | Hughes Aircraft Co | Glass sealing material for sodium-sulfur battery and battery manufactured therewith |
| KR100294468B1 (en) * | 1994-06-08 | 2001-10-24 | 남창우 | Sodium-sulfur battery having multi-layered sulfur electrode |
| US9577297B2 (en) | 2011-09-30 | 2017-02-21 | General Electric Company | Electrochemical cells including a conductive matrix |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5485332A (en) * | 1977-12-19 | 1979-07-06 | Yuasa Battery Co Ltd | Sodiummsulfur cell |
| JPS5935373A (en) * | 1982-08-20 | 1984-02-27 | Yuasa Battery Co Ltd | Sodium-sulfur battery |
-
1987
- 1987-05-27 JP JP62130954A patent/JP2620238B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5485332A (en) * | 1977-12-19 | 1979-07-06 | Yuasa Battery Co Ltd | Sodiummsulfur cell |
| JPS5935373A (en) * | 1982-08-20 | 1984-02-27 | Yuasa Battery Co Ltd | Sodium-sulfur battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0364857A (en) * | 1989-07-31 | 1991-03-20 | Agency Of Ind Science & Technol | Porous electrode structure |
| JP2673584B2 (en) * | 1989-07-31 | 1997-11-05 | 工業技術院長 | Method for producing porous electrode structure |
| JPH05109432A (en) * | 1991-03-11 | 1993-04-30 | Hughes Aircraft Co | Glass sealing material for sodium-sulfur battery and battery manufactured therewith |
| KR100294468B1 (en) * | 1994-06-08 | 2001-10-24 | 남창우 | Sodium-sulfur battery having multi-layered sulfur electrode |
| US9577297B2 (en) | 2011-09-30 | 2017-02-21 | General Electric Company | Electrochemical cells including a conductive matrix |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2620238B2 (en) | 1997-06-11 |
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