JPH1025531A - Co-base alloy cathode material for sodium-sulfur battery - Google Patents
Co-base alloy cathode material for sodium-sulfur batteryInfo
- Publication number
- JPH1025531A JPH1025531A JP8184452A JP18445296A JPH1025531A JP H1025531 A JPH1025531 A JP H1025531A JP 8184452 A JP8184452 A JP 8184452A JP 18445296 A JP18445296 A JP 18445296A JP H1025531 A JPH1025531 A JP H1025531A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- electrode container
- content
- sodium
- corrosion resistance
- 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.)
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Classifications
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- 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
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
(57)【要約】
【課題】 高強度およびすぐれた耐Ｎａ・Ｓ腐食性を有
するＮａ−Ｓ電池のＣｏ基合金製正極容器材を提供す
る。
【解決手段】 Ｎａ−Ｓ電池の正極容器材を、重量％
で、Ｃｒ：１５〜３０％、Ｎｉ：５〜３０％、Ｗ：１０
〜２０％、Ｆｅ：０．１〜５％、Ｍｎ：０．２〜２％、
Ｃ：０．０１〜０．３％を含有し、さらに必要に応じて
Ｌａ：０．０１〜０．２％を含有し、残りがＣｏ（但し
３５％以上含有）と不可避不純物からなる組成を有する
Ｃｏ基合金で構成する。
(57) [Problem] To provide a Co-based alloy positive electrode container material of a Na-S battery having high strength and excellent Na.S corrosion resistance. SOLUTION: A positive electrode container material of a Na-S battery is contained in a weight%.
And Cr: 15 to 30%, Ni: 5 to 30%, W: 10
-20%, Fe: 0.1-5%, Mn: 0.2-2%,
C: 0.01 to 0.3%, and if necessary, La: 0.01 to 0.2%, and the balance is composed of Co (but 35% or more) and inevitable impurities. And a Co-based alloy.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、高強度を有し、
かつ溶融多硫化ナトリウムおよび溶融硫黄（Ｓ）に対す
る耐食性（以下、耐Ｎａ・Ｓ腐食性と云う）にすぐれ、
したがってナトリウム（Ｎａ）−硫黄（Ｓ）電池の大容
量化および軽量化に寄与するＣｏ基合金製正極容器材に
関するものである。TECHNICAL FIELD The present invention has a high strength,
And excellent corrosion resistance to molten sodium polysulfide and molten sulfur (S) (hereinafter referred to as Na · S corrosion resistance),
Accordingly, the present invention relates to a Co-based alloy positive electrode container material that contributes to increasing the capacity and weight of a sodium (Na) -sulfur (S) battery.
【０００２】[0002]
【従来の技術】従来、一般に、Ｎａ−Ｓ電池が、電気自
動車や電力貯蔵などに用いられ、さらに図１にその１例
を概略縦断面図で示す通り、一端が閉じたβ−アルミナ
製固体電解質管（１）の開口端にα−アルミナ製絶縁リ
ング（２）をガラスで封着し、この絶縁リング（２）に
正極容器（３）と負極棒（４）を、前記固体電解質管内
にはＮａ（５）を、またこれと前記正極容器との空隙に
はＳ（６）を充填した状態で、それぞれ封着した構造を
もつことが知られている。また、上記の構造を有するＮ
ａ−Ｓ電池においては、一般に動作温度が３５０℃であ
り、放電時には溶融ＮａがＮａイオンになり固体電解質
管１の中を正極容器３側に移動して、溶融Ｓと反応して
多硫化ナトリウムを生成し、一方充電はこの逆反応とな
るものである。したがって、Ｎａ−Ｓ電池の正極容器
は、腐食性の強い多硫化ナトリウムおよび溶融Ｓにさら
される苛酷な腐食環境下におかれるため、耐Ｎａ・Ｓ腐
食性の良好な、例えば特開平７−８５８８６号公報に記
載されるようなＦｅ−Ｃｒ系合金、すなわち、重量％で
（以下、％はいずれも重量％を示す）、 Ｃｒ：２５〜４０％、 Ｍｏ：１〜３．５％、 Ａｌ：０．５〜３．５％、 を含有し、残りがＦｅと不可避不純物からなる組成を有
するＦｅ−Ｃｒ系合金などが用いられている。2. Description of the Related Art Conventionally, Na-S batteries are generally used for electric vehicles, electric power storage, etc., and as shown in FIG. An α-alumina insulating ring (2) is sealed to the open end of the electrolyte tube (1) with glass, and a positive electrode container (3) and a negative electrode rod (4) are placed in the insulating ring (2) in the solid electrolyte tube. Is known to have a structure in which Na (5) is filled and S (6) is filled in a gap between the Na (5) and the positive electrode container. In addition, N having the above structure
In an a-S battery, the operating temperature is generally 350 ° C., and at the time of discharge, molten Na becomes Na ions, moves inside the solid electrolyte tube 1 to the positive electrode container 3 side, reacts with the molten S, and reacts with sodium polysulfide. , While charging is the opposite reaction. Therefore, the positive electrode container of the Na-S battery is placed in a severe corrosive environment exposed to highly corrosive sodium polysulfide and molten S. Fe-Cr-based alloys as described in Japanese Patent Application Laid-Open Publication No. H10-209, that is, in terms of% by weight (hereinafter, all indicate% by weight), Cr: 25 to 40%, Mo: 1 to 3.5%, Al: 0.5-3.5%, and the balance is Fe-Cr based alloy having a composition of Fe and unavoidable impurities.
【０００３】[0003]
【発明が解決しようとする課題】一方、近年の無公害エ
ネルギーの益々の必要性から、Ｎａ−Ｓ電池が注目さ
れ、かつこれの大容量化および軽量化が強く求められて
いるが、これらの要求を満足させる手段の１つとして正
極容器の薄肉化がある。しかしながら、上記の従来正極
容器を構成するＦｅ−Ｃｒ系合金はじめ、その他の材料
は充分な強度と耐Ｎａ・Ｓ腐食性を具備するものでない
ために、これを薄肉化することは実用上困難であるのが
現状である。On the other hand, Na-S batteries have attracted attention due to the increasing need for pollution-free energy in recent years, and their capacity and weight have been strongly demanded. One of means for satisfying the demand is to reduce the thickness of the positive electrode container. However, since the other materials such as the Fe-Cr-based alloy constituting the above-described conventional positive electrode container do not have sufficient strength and Na.S corrosion resistance, it is practically difficult to reduce the thickness of the material. There is the present situation.
【０００４】[0004]
【課題を解決するための手段】そこで、本発明者等は、
上述のような観点から、より一段と高い強度を有し、か
つ耐Ｎａ・Ｓ腐食性にもすぐれたＮａ−Ｓ電池の正極容
器を開発すべく研究を行った結果、 Ｎａ−Ｓ電池の正
極容器を、 Ｃｒ：１５〜３０％、 Ｎｉ：５〜３０％、 Ｗ：１０〜２０％、 Ｆｅ：０．１〜５％、 Ｍｎ：０．２〜２％、 Ｃ：０．０１〜０．３％、 を含有し、さらに必要に応じて、 Ｌａ：０．０１〜０．２％、 を含有し、残りがＣｏ（但し３５％以上含有）と不可避
不純物からなる組成を有するＣｏ基合金で構成すると、
この結果のＣｏ基合金製正極容器材は、高強度とすぐれ
た耐Ｎａ・Ｓ腐食性をもつことから、これを薄肉化して
もＮａ−Ｓ電池への実用に際して充分満足な性能を長期
に亘って発揮するという研究結果を得たのである。Means for Solving the Problems Accordingly, the present inventors have
From the above-mentioned viewpoints, as a result of conducting research to develop a positive electrode container of a Na-S battery having higher strength and excellent Na / S corrosion resistance, a positive electrode container of a Na-S battery was obtained. Cr: 15 to 30%, Ni: 5 to 30%, W: 10 to 20%, Fe: 0.1 to 5%, Mn: 0.2 to 2%, C: 0.01 to 0.3 %, And, if necessary, La: 0.01 to 0.2%, and the remainder is composed of a Co-based alloy having a composition of Co (including 35% or more) and unavoidable impurities. Then
Since the resulting positive electrode container material made of a Co-based alloy has high strength and excellent Na / S corrosion resistance, even if the thickness is reduced, sufficient performance for practical use in a Na-S battery is obtained for a long time. The research results showed that it could be demonstrated.
【０００５】この発明は、上記の研究結果に基づいてな
されたものであって、 Ｃｒ：１５〜３０％、 Ｎｉ：５〜３０％、 Ｗ：１０〜２０％、 Ｆｅ：０．１〜５％、 Ｍｎ：０．２〜２％、 Ｃ：０．０１〜０．３％、 を含有し、さらに必要に応じて、 Ｌａ：０．０１〜０．２％、 を含有し、残りがＣｏ（但し３５％以上含有）と不可避
不純物からなる組成を有するＣｏ基合金で構成してな
る、高強度およびすぐれた耐Ｎａ・Ｓ腐食性を有するＮ
ａ−Ｓ電池のＣｏ基合金製正極容器材に特徴を有するも
のである。The present invention has been made on the basis of the above research results, and includes: Cr: 15 to 30%, Ni: 5 to 30%, W: 10 to 20%, Fe: 0.1 to 5% , Mn: 0.2 to 2%, C: 0.01 to 0.3%, and, if necessary, La: 0.01 to 0.2%, and the remainder Co ( N, which is composed of a Co-based alloy having a composition consisting of unavoidable impurities and having high strength and excellent Na.S corrosion resistance.
The present invention is characterized by a positive electrode container material made of a Co-based alloy of an aS battery.
【０００６】つぎに、この発明の正極容器材を構成する
Ｃｏ基合金の組成を上記の通りに限定した理由を説明す
る。 （ａ）Ｃｒ Ｃｒ成分には、素地に固溶して耐Ｎａ・Ｓ腐食性を向上
させると共に、素地に微細に分散する炭化物を形成して
強度を向上させる作用があるが、その含有量が１５％未
満では前記作用に所望の向上効果が得られず、一方その
含有量が３０％を越えると、圧延加工性および溶接性が
低下（いずれの場合も割れが発生するようになる）する
ようになることから、その含有量を１５〜３０％、望ま
しくは２０〜２４％と定めた。Next, the reason why the composition of the Co-based alloy constituting the positive electrode container material of the present invention is limited as described above will be described. (A) Cr The Cr component has the effect of improving the strength by forming a finely dispersed carbide in the base material, while improving the Na / S corrosion resistance by forming a solid solution in the base material. If the content is less than 15%, the desired effect cannot be obtained, while if the content exceeds 30%, the rollability and weldability are reduced (in each case, cracks occur). Therefore, the content was determined to be 15 to 30%, preferably 20 to 24%.
【０００７】（ｂ）Ｎｉ Ｎｉ成分には、素地に固溶して強度を向上させる作用が
あるが、その含有量が５％未満では所望の強度向上効果
が得られず、一方その含有量が３０％を超えると、耐Ｎ
ａ・Ｓ腐食性が低下するようになることから、その含有
量を５〜３０％、望ましくは２０〜２５％と定めた(B) Ni The Ni component has a function of improving the strength by forming a solid solution in the base material. However, if the content is less than 5%, the desired strength improving effect cannot be obtained. If it exceeds 30%, N resistance
Since the a · S corrosiveness decreases, its content is set to 5 to 30%, preferably 20 to 25%.
【０００８】（ｃ）Ｗ Ｗ成分には、素地に固溶し、かつ素地中に微細に分散す
る炭化物を形成して強度を向上させる作用があるが、そ
の含有量が１０％未満では前記作用に所望の向上効果が
得られず、一方その含有量が２０％を越えると、圧延加
工性が低下するようになることから、その含有量を１０
〜２０％、望ましくは１３〜１６％と定めた。(C) WW The W component has a function of improving the strength by forming a carbide which forms a solid solution in the base material and is finely dispersed in the base material. When the content exceeds 20%, the rolling workability is reduced.
-20%, preferably 13-16%.
【０００９】（ｄ）Ｆｅ Ｆｅ成分には、素地に固溶して圧延加工性を向上させる
作用があるが、その含有量が０．１％未満では前記作用
に所望の向上効果が得られず、一方その含有量が５％を
越えると耐Ｎａ・Ｓ腐食性が低下するようになることか
ら、その含有量を０．１〜５％、望ましくは０．１〜３
％と定めた。(D) Fe The Fe component has a function of improving the rolling workability by forming a solid solution in the base material. However, if the content is less than 0.1%, a desired improvement effect cannot be obtained. On the other hand, if the content exceeds 5%, the Na.S corrosion resistance decreases, so that the content is 0.1 to 5%, preferably 0.1 to 3%.
%.
【００１０】（ｅ）Ｍｎ Ｍｎ成分には、素地に固溶して、耐Ｎａ・Ｓ腐食性を向
上させる作用があるが、その含有量が０．２％未満では
前記作用に所望の効果が得られず、一方その含有量が２
％を越えると、素地にフェライト相が出現するようにな
って耐Ｎａ・Ｓ腐食性に低下傾向が現れるようになるこ
とから、その含有量を０．２〜２％、望ましくは０．２
〜１．３％と定めた。(E) Mn The Mn component has a function of improving the Na · S corrosion resistance by forming a solid solution in the base material, but if its content is less than 0.2%, the desired effect is not obtained. Not obtained, while its content is 2
%, The ferrite phase appears on the base material, and the Na · S corrosion resistance tends to decrease. Therefore, the content is 0.2 to 2%, preferably 0.2%.
％ 1.3%.
【００１１】（ｆ）Ｃ Ｃ成分には、素地に固溶して、これを固溶強化するほ
か、ＣｒおよびＷと結合して炭化物を形成し、もって強
度を向上させる作用があるが、その含有量が０．０１％
未満では前記作用に所望の向上効果が得られず、一方そ
の含有量が０．３％を越えると、圧延加工性が低下する
ようになることから、その含有量を０．０１〜０．３
％、望ましくは０．０５〜０．１５％と定めた。(F) CC The C component has the effect of forming a solid solution in the base material and strengthening the solid solution, as well as forming carbides by combining with Cr and W, thereby improving the strength. Content 0.01%
If the content is less than 0.3%, the desired effect cannot be obtained. If the content is more than 0.3%, the rolling workability is reduced.
%, Desirably 0.05 to 0.15%.
【００１２】（ｇ）Ｌａ Ｌａ成分には、耐Ｎａ・Ｓ腐食性を一段と向上させる作
用があるので、必要に応じて含有されるが、その含有量
が０．０１％未満では所望の向上効果が得られず、一方
その含有量が０．２％を越えると酸化物が生成するよう
になって強度が低下するようになるないことから、その
含有量を０．０１〜０．２％、望ましくは０．０３〜
０．１２％と定めた。(G) La La component has an effect of further improving the Na.S corrosion resistance, and is therefore contained as necessary. If the content is less than 0.01%, the desired improvement effect is obtained. Is not obtained. On the other hand, if the content exceeds 0.2%, an oxide is formed and the strength does not decrease, so that the content is 0.01 to 0.2%, Desirably 0.03 to
It was determined to be 0.12%.
【００１３】（ｈ）Ｃｏ Ｃｏ成分は、すぐれた耐Ｎａ・Ｓ腐食性を確保するのに
不可欠の成分であり、したがってその含有量が３５％未
満では所望の耐Ｎａ・Ｓ腐食性が得られないことから、
その含有量を３５％以上と定めた。(H) Co The Co component is an indispensable component for ensuring excellent Na.S corrosion resistance. Therefore, if its content is less than 35%, desired Na.S corrosion resistance can be obtained. Because there is no
The content was determined to be 35% or more.
【００１４】[0014]
【発明の実施の形態】つぎに、この発明の正極容器材を
実施例により具体的に説明する。原料として金属Ｃｏ、
テルミットクロム、金属Ｗ、Ｆｅ−Ｎｉ合金、炭素粉
末、電解Ｎｉ、Ｎｉ−Ｌａ合金、および金属Ｍｎを用
い、これら原料を所定の割合に配合し、これを高周波誘
導溶解炉にて脱酸剤としてＳｉおよびＡｌを用いて溶解
して、それぞれ表１、２に示される成分組成をもった溶
湯を調製し、この溶湯をさらに同じく脱酸剤としてＮｉ
−Ｍｇ合金を用いて脱酸した状態で出湯して、外径：５
００ｍｍのインゴットに鋳造し（この結果インゴットは
通常０．１〜０．６％のＳｉ、０．１〜０．４％のＡ
ｌ、および０．０１〜０．０６％のＭｇを含有するよう
になる）、前記インゴットを１１８０℃に１０時間保持
の条件で均質化処理した後、１１００〜１２００℃の温
度で熱間圧延して厚さ：３ｍｍの熱延板とし、さらにこ
の熱延板に冷間圧延を施して厚さ：０．５ｍｍの冷延板
とすることにより本発明正極容器材１〜１７および従来
正極容器材を製造した。Next, the positive electrode container material of the present invention will be specifically described with reference to examples. Metal Co as raw material,
Using thermit chromium, metal W, Fe-Ni alloy, carbon powder, electrolytic Ni, Ni-La alloy, and metal Mn, mix these raw materials in a predetermined ratio, and use this as a deoxidizer in a high frequency induction melting furnace. Melting was performed using Si and Al to prepare melts having the component compositions shown in Tables 1 and 2, respectively.
-Dewatered with Mg alloy, tapping, outer diameter: 5
Cast into a 00 mm ingot (resulting in ingots typically 0.1-0.6% Si, 0.1-0.4% A
l, and 0.01 to 0.06% Mg), and the ingot was homogenized at 1180 ° C for 10 hours and then hot-rolled at a temperature of 1100 to 1200 ° C. The positive electrode container materials 1 to 17 of the present invention and the conventional positive electrode container material were prepared by forming a hot-rolled sheet having a thickness of 3 mm, and further performing cold rolling on the hot-rolled sheet to obtain a cold-rolled sheet having a thickness of 0.5 mm. Was manufactured.
【００１５】ついで、この結果得られた各種の正極容器
材より、強度を評価する目的で、平行部長さ：１２０ｍ
ｍ×幅：２０ｍｍ×厚さ：０．５ｍｍの寸法をもった引
張試験片を切り出し、さらにこれらの耐Ｎａ・Ｓ腐食性
を評価する目的で、造管機とＴＩＧ溶接機を用いて、外
径：６５ｍｍ×長さ：４００ｍｍの寸法をもった管体を
形成し、これに１１８０℃に３０分間保持後水冷の条件
で固溶化熱処理を施すことによりＮａ−Ｓ電池の正極容
器を形成した。引張試験は、３５０℃で行って引張強さ
を測定し、また上記正極容器については、Ｎａ−Ｓ電池
に組み込んで、運転温度：３５０℃、充電電流密度：２
３０ｍＡ／ｃｍ2、放電電流密度：３００ｍＡ／ｃｍ
2 、連続充放電回数：１５０サイクルの加速条件で実機
試験を行い、正極容器内面における最大浸食深さを測定
した。 これらの測定結果を表１、２に示した。Then, from the various positive electrode container materials obtained as a result, in order to evaluate the strength, the length of the parallel portion: 120 m
A tensile test piece having a size of mx width: 20 mm x thickness: 0.5 mm was cut out, and in order to evaluate their Na / S corrosion resistance, an outer tube was formed using a tube forming machine and a TIG welding machine. A tube having a diameter of 65 mm × length: 400 mm was formed, and the tube was held at 1180 ° C. for 30 minutes and then subjected to a solution heat treatment under water-cooling conditions to form a positive electrode container of a Na-S battery. The tensile test was performed at 350 ° C. to measure the tensile strength. The positive electrode container was incorporated into a Na—S battery, and the operating temperature was 350 ° C. and the charging current density was 2
30 mA / cm 2 , discharge current density: 300 mA / cm
2. Number of continuous charge / discharge cycles: An actual machine test was performed under acceleration conditions of 150 cycles, and the maximum erosion depth on the inner surface of the positive electrode container was measured. Tables 1 and 2 show the measurement results.
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【表２】 [Table 2]
【００１８】[0018]
【発明の効果】表１、２に示される結果から、本発明正
極容器材１〜１７は、いずれも従来正極容器材に比して
高強度を有すると共に、一段とすぐれた耐Ｎａ・Ｓ腐食
性を示すことが明らかである。上述のように、この発明
のＣｏ基合金製正極容器材は、高強度とすぐれた耐Ｎａ
・Ｓ腐食性を具備しているので、これを薄肉化した状態
で実用に供することが可能であることから、Ｎａ−Ｓ電
池の大容量化および軽量化に寄与かることができるなど
工業上有用な特性を有するのである。From the results shown in Tables 1 and 2, all of the positive electrode container materials 1 to 17 of the present invention have higher strength than the conventional positive electrode container material, and furthermore have excellent Na and S corrosion resistance. It is clear that As described above, the Co-based alloy positive electrode container material of the present invention has high strength and excellent Na resistance.
-Since it has S-corrosion, it can be put to practical use in a thinned state, so it is industrially useful, such as being able to contribute to increasing the capacity and weight of Na-S batteries. It has various characteristics.
【図１】Ｎａ−Ｓ電池の構造を例示する概略縦断面図で
ある。FIG. 1 is a schematic longitudinal sectional view illustrating the structure of a Na—S battery.
１ 固体電解質管 ２ 絶縁リング ３ 正極容器 ４ 負極棒 ５ Ｎａ ６ Ｓ DESCRIPTION OF SYMBOLS 1 Solid electrolyte tube 2 Insulation ring 3 Positive electrode container 4 Negative electrode rod 5 Na 6 S
Claims (2)
不純物からなる組成を有するＣｏ基合金で構成したこと
を特徴とするナトリウム−硫黄電池のＣｏ基合金製正極
容器材。1. In weight%, Cr: 15 to 30%, Ni: 5 to 30%, W: 10 to 20%, Fe: 0.1 to 5%, Mn: 0.2 to 2%, C: Co-based alloy for a sodium-sulfur battery, characterized in that the Co-based alloy has a composition of 0.01 to 0.3%, with the balance being Co (but not less than 35%) and unavoidable impurities. Positive container material.
不純物からなる組成を有するＣｏ基合金で構成したこと
を特徴とするナトリウム−硫黄電池のＣｏ基合金製正極
容器材。2. In weight%, Cr: 15 to 30%, Ni: 5 to 30%, W: 10 to 20%, Fe: 0.1 to 5%, Mn: 0.2 to 2%, C: 0.01 to 0.3%, and La: 0.01 to 0.2%, with the balance being Co (having 35% or more) and having a composition consisting of unavoidable impurities. A positive electrode container material made of a Co-based alloy for a sodium-sulfur battery, wherein the positive electrode container material is made of an alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8184452A JPH1025531A (en) | 1996-07-15 | 1996-07-15 | Co-base alloy cathode material for sodium-sulfur battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8184452A JPH1025531A (en) | 1996-07-15 | 1996-07-15 | Co-base alloy cathode material for sodium-sulfur battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1025531A true JPH1025531A (en) | 1998-01-27 |
Family
ID=16153404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8184452A Pending JPH1025531A (en) | 1996-07-15 | 1996-07-15 | Co-base alloy cathode material for sodium-sulfur battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1025531A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000251898A (en) * | 1999-02-25 | 2000-09-14 | Wilson Greatbatch Ltd | Cobalt-based alloy as a positive electrode current collector in non-aqueous electrochemical cells |
| CN110983113A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | Cobalt-based high-temperature alloy wire and preparation method thereof |
| US20210106729A1 (en) * | 2019-10-14 | 2021-04-15 | Abbott Cardiovascular Systems, Inc. | Methods for manufacturing radiopaque intraluminal stents comprising cobalt-based alloys with supersaturated tungsten content |
| US12150872B2 (en) | 2010-11-17 | 2024-11-26 | Abbott Cardiovascular Systems, Inc. | Radiopaque intraluminal stents |
-
1996
- 1996-07-15 JP JP8184452A patent/JPH1025531A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000251898A (en) * | 1999-02-25 | 2000-09-14 | Wilson Greatbatch Ltd | Cobalt-based alloy as a positive electrode current collector in non-aqueous electrochemical cells |
| US12150872B2 (en) | 2010-11-17 | 2024-11-26 | Abbott Cardiovascular Systems, Inc. | Radiopaque intraluminal stents |
| US20210106729A1 (en) * | 2019-10-14 | 2021-04-15 | Abbott Cardiovascular Systems, Inc. | Methods for manufacturing radiopaque intraluminal stents comprising cobalt-based alloys with supersaturated tungsten content |
| US12151049B2 (en) * | 2019-10-14 | 2024-11-26 | Abbott Cardiovascular Systems, Inc. | Methods for manufacturing radiopaque intraluminal stents comprising cobalt-based alloys with supersaturated tungsten content |
| CN110983113A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | Cobalt-based high-temperature alloy wire and preparation method thereof |
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