JPS62294145A - Metallic alloy for hydrogen storage containing rare earth element and nickel - Google Patents
Metallic alloy for hydrogen storage containing rare earth element and nickelInfo
- Publication number
- JPS62294145A JPS62294145A JP13631886A JP13631886A JPS62294145A JP S62294145 A JPS62294145 A JP S62294145A JP 13631886 A JP13631886 A JP 13631886A JP 13631886 A JP13631886 A JP 13631886A JP S62294145 A JPS62294145 A JP S62294145A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen storage
- rare earth
- nickel
- alloy
- earth elements
- 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.)
- Pending
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000001257 hydrogen Substances 0.000 title claims abstract description 36
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 36
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 19
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 14
- 229910001092 metal group alloy Inorganic materials 0.000 title abstract 3
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 25
- 239000000956 alloy Substances 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 abstract description 4
- 229910052684 Cerium Inorganic materials 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 229910052746 lanthanum Inorganic materials 0.000 abstract description 3
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 229910052779 Neodymium Inorganic materials 0.000 abstract description 2
- 229910052777 Praseodymium Inorganic materials 0.000 abstract description 2
- 229910052772 Samarium Inorganic materials 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 239000012298 atmosphere Substances 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011572 manganese Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910018561 MmNi5 Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
3、発明の詳細な説明
本発明は水素吸蔵合金に関し、更に詳細には希土類元素
及びニッケルを含む水素吸蔵合金に関する。Detailed Description of the Invention 3. Detailed Description of the Invention The present invention relates to a hydrogen storage alloy, and more particularly to a hydrogen storage alloy containing a rare earth element and nickel.
〈従来の技術及び問題点〉 従来、希土類元素、ニッケルの他にアミニウム。<Conventional technology and problems> Conventionally, in addition to rare earth elements and nickel, aminium has been used.
マンガン、鉄、コバルト、銅、クロム等の第3金属元素
を加えた場合の水素吸蔵合金の合金組成としてはRN
l 5−X M X (式中、Rは希土類元素。The alloy composition of a hydrogen storage alloy when a third metal element such as manganese, iron, cobalt, copper, or chromium is added is RN.
l 5-X M X (wherein, R is a rare earth element.
Mは希土類元素及びニッケル以外の他の金属元素を示す
)にて表わされる化学量論組成を用いていたが、水素吸
蔵量は必ずしも満足されるものではなく、且つプラトー
性も劣るものであった。The stoichiometric composition expressed by M (representing a rare earth element and a metal element other than nickel) was used, but the hydrogen storage capacity was not necessarily satisfactory and the plateau property was also poor. .
〈発明の[1的〉
本発明によれば、水素吸蔵量を満足する値に維持すると
共にプラトー性も良好であり、しかも従来より高いプラ
トー圧を得ることのできる水素吸蔵合金を提供す、るこ
とを目的とする。<Object 1 of the Invention> According to the present invention, there is provided a hydrogen storage alloy that maintains the hydrogen storage amount at a satisfactory value, has good plateau properties, and can obtain a higher plateau pressure than conventional ones. The purpose is to
く問題点を解決するための手段〉
本発明によれば、希土類元素及びニッケルを含む水素吸
蔵合金において、
RN l 3.5〜4.。M□、。〜。、。Means for Solving Problems> According to the present invention, in a hydrogen storage alloy containing a rare earth element and nickel, RN l is 3.5 to 4. . M□,. ~. ,.
(式中、Rは希土類元素、Mは希土類元素及びニッケル
以外の他の金属を示す)に表わされる非化学量論組成を
有することを特徴とする水素吸蔵合金が提供される。A hydrogen storage alloy is provided which is characterized by having a non-stoichiometric composition represented by the formula (wherein R is a rare earth element, and M is a rare earth element and a metal other than nickel).
以下、本発明につき更に詳細に説明する。The present invention will be explained in more detail below.
本発明の水素吸蔵合金は。The hydrogen storage alloy of the present invention is.
RNi、RNi3.5〜4.0M4 + OM 1 +
。〜。、Sにて示され非化学量論組成を有することを特
徴とする。すなわち、RNi、、、Ml、。乃至RNi
4.。Mo、、にて示されるように希土類元素、ニッケ
ル以外の第3金JX(M)を化学量論組成よりも少ない
非化学量論組成とすることにより、驚くべきことに水素
吸蔵量、ヒステリシス、プラトー性、プラトー圧が共に
バランスされた良好な結果を得ることができる。RNi, RNi3.5~4.0M4 + OM 1 +
. ~. , S and is characterized by having a non-stoichiometric composition. That is, RNi,,,Ml,. ~RNi
4. . As shown in Mo, , by making tertiary gold JX (M), which is a rare earth element other than nickel, to have a non-stoichiometric composition that is less than the stoichiometric composition, surprisingly, the hydrogen storage capacity, hysteresis, Good results with well-balanced plateau properties and plateau pressure can be obtained.
RN i 、、sMl、、において第3金属元素(M)
の原子比が1.0を超えるとプラトー性が極端に悪くな
る。また一方RNi、、。M、、、において第3金属元
素(M)が0.5未満となると、水素吸蔵量が少なくな
り、ヒステリシスも大きくなる。The third metal element (M) in RN i , sMl, .
When the atomic ratio exceeds 1.0, the plateau property becomes extremely poor. On the other hand, RNi... When the third metal element (M) is less than 0.5 in M, . . . , the amount of hydrogen storage decreases and the hysteresis also increases.
本発明の水素吸蔵合金において用いることのできる希土
類元素(R)としては、ランタン(La)。A rare earth element (R) that can be used in the hydrogen storage alloy of the present invention is lanthanum (La).
セリウム(Ce)、ネオジム(Nd)、プラセオジム(
Pr)、サマリウム(Sm)等及びこれらの混合物を挙
げることができる。希土類元素を種々変えることにより
広い範囲でプラトー性が良く、ヒステリシスが小さく、
しかも水素吸蔵量が大なる水素吸蔵合金が得られる。Cerium (Ce), Neodymium (Nd), Praseodymium (
Pr), samarium (Sm), etc. and mixtures thereof. By varying the rare earth elements, the plateau property is good over a wide range, and the hysteresis is small.
Furthermore, a hydrogen storage alloy with a large hydrogen storage capacity can be obtained.
本発明の水素吸蔵合金において用いることのできる第3
金属元素(M)としては、アルミニウム(Afl)、マ
ンガン(Mn)、鉄(Fe)、コバルト(Co)、クロ
ム(Cr) 、IR(Cu)等を挙げることができる。The third material that can be used in the hydrogen storage alloy of the present invention
Examples of the metal element (M) include aluminum (Afl), manganese (Mn), iron (Fe), cobalt (Co), chromium (Cr), and IR (Cu).
これらのうち、コバルト(Co)を用いた場合、バラン
スのとれた特性を有するので好ましい。銅(Cu)を用
いた場合は、COを用いた場合よりプラトー圧が高く、
他のAQ、Mn、Fe、Crを用いた場合はCOを用い
た場合より、プラトー圧が低く、またヒステリシスがC
Oを用いた場合より大きくなり、水素吸蔵量が少し少な
くなる。Among these, it is preferable to use cobalt (Co) because it has well-balanced characteristics. When using copper (Cu), the plateau pressure is higher than when using CO,
When other AQ, Mn, Fe, and Cr are used, the plateau pressure is lower than when CO is used, and the hysteresis is lower than that when CO is used.
This is larger than when O is used, and the amount of hydrogen storage is slightly smaller.
本発明の水素吸蔵合金を製造するにあたっては。In manufacturing the hydrogen storage alloy of the present invention.
希土類元素(R)、ニッケル(Ni)及び第3金属元素
(M)を前述の非化学量論組成となるよう配合し、アー
ク炉、高周波炉等を用いてアルゴン雰囲気下などの不活
性雰囲気下にて1300〜3000’Ca度にて溶解し
、次いで放冷して得られた合金を米オ′・γ大〜100
メツシュ程度に粉砕するのが望ましい。A rare earth element (R), nickel (Ni), and a third metal element (M) are blended to have the above-mentioned non-stoichiometric composition, and then heated under an inert atmosphere such as an argon atmosphere using an arc furnace, high frequency furnace, etc. The alloy obtained by melting at 1300 to 3000'Ca degree and then cooling was heated to
It is desirable to crush it to a mesh size.
〈発明の効果〉
本発明の水素吸蔵合金は、水素吸蔵量、プラトー性、プ
ラトー圧のいずれにおいても満足するものが得られ、し
かもヒステリシスが小さいので非常に有用である。<Effects of the Invention> The hydrogen storage alloy of the present invention is very useful because it provides satisfactory hydrogen storage capacity, plateau properties, and plateau pressure, and has small hysteresis.
〈実施例〉 以下、本発明につきその実施例を挙げて説明する。<Example> Hereinafter, the present invention will be explained by giving examples thereof.
ス】D」1
ミツシュメタル(M m ランタンとセリウムの混合
物)と、ニッケルとコバルトとを粉砕混合しアーク炉に
入れ、アルゴン雰囲気下に3000℃にて溶解後、1時
間放冷して下記の組成の水素吸蔵合金を製造した。D''1 Mitsushi metal (a mixture of Mm lanthanum and cerium), nickel and cobalt were pulverized and mixed, placed in an arc furnace, melted at 3000°C under an argon atmosphere, allowed to cool for 1 hour, and the following composition was obtained. A hydrogen storage alloy was manufactured.
MmNi5.?5CO0,7S (Mm 34.62
wt%、、Ni54.44 wt%、 G o 10.
93 wt%)かようにして得られた水素吸蔵合金を米
粒大に粉砕し定容法にて合金の特性を測定した。その結
果を第1図並びに下記の表に示す。MmNi5. ? 5CO0,7S (Mm 34.62
wt%, Ni54.44 wt%, G o 10.
(93 wt%) The hydrogen storage alloy thus obtained was ground into pieces the size of rice grains, and the properties of the alloy were measured using a constant volume method. The results are shown in Figure 1 and the table below.
第1図は水素吸蔵量と平衡圧の等温線図で、3O℃及び
10℃におけるそれぞれの水素の吸蔵圧と放出圧を示す
。吸蔵圧と放出圧の差がヒステリシス、平衡圧の平らな
部分がプラトー域で、水素の吸蔵量は、H/Mで表わさ
れる。H/M=1のところで、Mm N i3.、、c
o。、7sHs、5組成となる。この点での水素吸蔵
量は、1.35wt%となる。FIG. 1 is an isothermal diagram of hydrogen storage amount and equilibrium pressure, showing the hydrogen storage pressure and release pressure at 30° C. and 10° C., respectively. The difference between the storage pressure and the release pressure is hysteresis, the flat part of the equilibrium pressure is the plateau region, and the amount of hydrogen stored is expressed as H/M. At H/M=1, Mm N i3. ,,c
o. , 7sHs, and 5 compositions. The hydrogen storage amount at this point is 1.35 wt%.
ル1u鉄
実施例1に準じて下記の化学量論組成の水素吸蔵合金を
製造し、実施例1と同様にしてその特性を測定した。そ
の結果を第2図に示す。A hydrogen storage alloy having the following stoichiometric composition was manufactured according to Example 1, and its properties were measured in the same manner as in Example 1. The results are shown in FIG.
大英例2〜8
実施例1に準じて下記の表の組成の水素吸蔵合金を製造
し、実施例1に記載と同様の手法により特性を測定した
。その結果を表に示す。Examples 2 to 8 Hydrogen storage alloys having the compositions shown in the table below were manufactured according to Example 1, and their properties were measured using the same method as described in Example 1. The results are shown in the table.
実施例2,4.8については第3図に測定結果を示す。The measurement results for Examples 2 and 4.8 are shown in FIG.
注1)H/M=0.5に於ける絶対工 注2)◎:大大変−0:良い △::通Note 1) Absolute work at H/M=0.5 Note 2) ◎: Very difficult - 0: Good △:: General
第1回は本発明の実施例1の水素吸蔵合金を用いた場合
の水素吸蔵量と平衡圧との関係を示す等温線図、第2図
は比較例による同様の等温線図、第3図は実施例2,4
及び8の水素吸蔵合金を用いた場合の同様の等温線図で
ある。The first is an isothermal diagram showing the relationship between hydrogen storage amount and equilibrium pressure when using the hydrogen storage alloy of Example 1 of the present invention, Figure 2 is a similar isothermal diagram of a comparative example, and Figure 3 are Examples 2 and 4
and 8 are similar isothermal diagrams when hydrogen storage alloys are used.
Claims (1)
〜_0_._5(式中、Rは希土類元素、Mは希土類元
素及びニッケル以外の他の金属を示す)に表わされる非
化学量論組成を有することを特徴とする水素吸蔵合金。[Claims] In a hydrogen storage alloy containing a rare earth element and nickel, RNi_3_. _5_~_4_. _0M_1_. _0_
~_0_. A hydrogen storage alloy characterized by having a non-stoichiometric composition represented by _5 (wherein R is a rare earth element, and M is a rare earth element and a metal other than nickel).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13631886A JPS62294145A (en) | 1986-06-13 | 1986-06-13 | Metallic alloy for hydrogen storage containing rare earth element and nickel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13631886A JPS62294145A (en) | 1986-06-13 | 1986-06-13 | Metallic alloy for hydrogen storage containing rare earth element and nickel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62294145A true JPS62294145A (en) | 1987-12-21 |
Family
ID=15172412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13631886A Pending JPS62294145A (en) | 1986-06-13 | 1986-06-13 | Metallic alloy for hydrogen storage containing rare earth element and nickel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62294145A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0382734A (en) * | 1989-08-25 | 1991-04-08 | Nippon Yakin Kogyo Co Ltd | Rare earth metal-series hydrogen storage alloy |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6070154A (en) * | 1983-09-27 | 1985-04-20 | Japan Metals & Chem Co Ltd | Hydrogen storing material |
JPS60230950A (en) * | 1984-05-01 | 1985-11-16 | Japan Metals & Chem Co Ltd | Hydrogen storing material |
JPS6191863A (en) * | 1984-10-11 | 1986-05-09 | Matsushita Electric Ind Co Ltd | Sealed alkaline storage battery |
JPS6193556A (en) * | 1984-10-12 | 1986-05-12 | Asahi Glass Co Ltd | Electrode for battery |
JPS61199045A (en) * | 1985-02-27 | 1986-09-03 | Chuo Denki Kogyo Kk | Hydrogen occluding alloy |
JPS61203561A (en) * | 1985-03-05 | 1986-09-09 | Matsushita Electric Ind Co Ltd | Battery electrode |
-
1986
- 1986-06-13 JP JP13631886A patent/JPS62294145A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6070154A (en) * | 1983-09-27 | 1985-04-20 | Japan Metals & Chem Co Ltd | Hydrogen storing material |
JPS60230950A (en) * | 1984-05-01 | 1985-11-16 | Japan Metals & Chem Co Ltd | Hydrogen storing material |
JPS6191863A (en) * | 1984-10-11 | 1986-05-09 | Matsushita Electric Ind Co Ltd | Sealed alkaline storage battery |
JPS6193556A (en) * | 1984-10-12 | 1986-05-12 | Asahi Glass Co Ltd | Electrode for battery |
JPS61199045A (en) * | 1985-02-27 | 1986-09-03 | Chuo Denki Kogyo Kk | Hydrogen occluding alloy |
JPS61203561A (en) * | 1985-03-05 | 1986-09-09 | Matsushita Electric Ind Co Ltd | Battery electrode |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0382734A (en) * | 1989-08-25 | 1991-04-08 | Nippon Yakin Kogyo Co Ltd | Rare earth metal-series hydrogen storage alloy |
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