JP2719884B2 - Hydrogen storage alloy and hydrogen storage alloy electrode - Google Patents
Hydrogen storage alloy and hydrogen storage alloy electrodeInfo
- Publication number
- JP2719884B2 JP2719884B2 JP6057513A JP5751394A JP2719884B2 JP 2719884 B2 JP2719884 B2 JP 2719884B2 JP 6057513 A JP6057513 A JP 6057513A JP 5751394 A JP5751394 A JP 5751394A JP 2719884 B2 JP2719884 B2 JP 2719884B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- hydrogen storage
- storage alloy
- phase
- present
- 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.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/383—Hydrogen absorbing alloys
-
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水素吸蔵合金及び水素
吸蔵合金電極に関する。The present invention relates to a hydrogen storage alloy and a hydrogen storage alloy electrode.
【０００２】[0002]
【従来技術とその課題】水素吸蔵合金は、大量の水素を
可逆的に吸蔵・放出することができるため、水素ガスの
貯蔵用材料、ヒートポンプ等の熱利用システム用の材
料、ニッケル−水素電池用の負極用材料などとして幅広
い用途への利用が期待されている。2. Description of the Related Art Hydrogen storage alloys can store and release a large amount of hydrogen reversibly, so they can be used as materials for storing hydrogen gas, materials for heat utilization systems such as heat pumps, and nickel-hydrogen batteries. It is expected to be used for a wide range of applications as a negative electrode material.
【０００３】水素吸蔵合金には、ＬａＮｉ5 等のＡＢ5
型合金、ＺｒＭｎ2 等のＡＢ2 型ラーベス合金、ＴｉＦ
ｅ等のＡＢ型合金、Ｍｇ2 Ｎｉ等のＡ2 Ｂ型合金、Ｔｉ
−Ｖ等の固溶体合金などが知られている。この中でも、
特に、固溶体合金は、水素吸蔵量が非常に大きく、しか
もコスト面において他の合金に比べて有利であるという
特徴がある。[0003] The hydrogen-absorbing alloy, AB 5 such as LaNi 5
Type alloy, AB 2 type Laves alloy such as ZrMn 2 , TiF
AB type alloy such as e, A 2 B type alloy such as Mg 2 Ni, Ti
Solid solution alloys such as -V are known. Among them,
In particular, a solid solution alloy has a feature that it has a very large hydrogen storage capacity and is more advantageous in cost than other alloys.
【０００４】しかしながら、固溶体合金は、水素の吸蔵
・放出を繰り返す際のサイクル寿命が短く、またニッケ
ル−水素電池用の負極として用いる場合の電気化学的な
反応が比較的遅いため、これらの点において未だ改善の
余地がある。However, a solid solution alloy has a short cycle life when repeatedly absorbing and releasing hydrogen, and has a relatively slow electrochemical reaction when used as a negative electrode for a nickel-metal hydride battery. There is still room for improvement.
【０００５】[0005]
【発明が解決しようとする課題】従って、本発明は、水
素吸蔵特性に優れ、電池の負極用材料としても好適な水
素吸蔵合金を提供することを主な目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a hydrogen storage alloy which has excellent hydrogen storage properties and is suitable as a material for a negative electrode of a battery.
【０００６】[0006]
【課題を解決するための手段】本発明者は、上記従来技
術の問題に鑑み、Ｔｉ−Ｖ系固溶体合金にニッケルを添
加することによってその電気化学的反応を促進させ、水
素吸蔵特性の改善を試みた。しかし、ニッケル単独の添
加では、例えばニッケル−水素電池用の負極として用い
た場合、バナジウムの電解液中への溶解が著しいため、
サイクル寿命が短く、放電容量も小さく、上記特性を十
分改善できないことが判明した。SUMMARY OF THE INVENTION In view of the above-mentioned problems in the prior art, the present inventor promoted the electrochemical reaction by adding nickel to a Ti-V-based solid solution alloy to improve the hydrogen storage characteristics. Tried. However, addition of nickel alone, for example, when used as a negative electrode for a nickel-hydrogen battery, vanadium is significantly dissolved in the electrolytic solution,
It was found that the cycle life was short, the discharge capacity was small, and the above characteristics could not be sufficiently improved.
【０００７】そこで、本発明者は、さらに特定の元素を
ニッケルと併用して添加したところ、従来では見られな
かった特異な構造をもつ水素吸蔵合金が得られ、この合
金はサイクル寿命、放電容量等の水素吸蔵特性が大幅に
改善されることを見出し、本発明を完成するに至った。[0007] Then, when the present inventors further added a specific element in combination with nickel, a hydrogen storage alloy having a peculiar structure, which had not been seen before, was obtained. This alloy has a cycle life and a discharge capacity. And the like, and found that the hydrogen storage properties were greatly improved, and completed the present invention.
【０００８】すなわち、本発明は、Ｔｉ−Ｖ系固溶体合
金において、Ｔｉ−Ｖ系固溶体合金からなる母相中に、
Ｔｉ及びＮｉを主成分とする合金相が３次元網目骨格を
形成して存在しており、 （ｉ）合金全体としてＴｉＶαＮｉβＭγ（但し、Ｍ
は、Ｃｏ、Ｃｕ及び Ｎｂの少なくとも１種の元素、１≦
α≦１０、０．２≦β≦２、 ０．０２≦γ≦０．５）な
る組成を有し、かつ、 （ｉｉ）上記Ｔｉ及びＮｉを主成分とする合金相が、Ｔ
ｉＮｉδＮε（但し、 ＮはＶ、Ｃｏ、Ｃｕ及びＮｂの少
なくとも１種の元素、０．５≦δ≦ ２、０．１≦ε≦
１）なる組成である水素吸蔵合金に係るものである。 [0008] That is , the present invention provides a Ti-V-based solid solution alloy comprising:
An alloy phase mainly composed of Ti and Ni is present in the form of a three-dimensional network skeleton . (I) TiVαNiβMγ (where M
Is at least one element of Co, Cu and Nb, 1 ≦
α ≦ 10, 0.2 ≦ β ≦ 2, 0.02 ≦ γ ≦ 0.5)
And (ii) the alloy phase mainly composed of Ti and Ni is T
iNiδNε (where N is a small amount of V, Co, Cu and Nb)
At least one element, 0.5 ≦ δ ≦ 2, 0.1 ≦ ε ≦
The present invention relates to a hydrogen storage alloy having a composition of 1).
【０００９】以下、本発明について詳細に説明する。Hereinafter, the present invention will be described in detail.
【００１０】本発明の水素吸蔵合金は、上記のようにＴ
ｉ−Ｖ系固溶体合金からなる母相中に、Ｔｉ及びＮｉを
主成分とする合金相が３次元網目骨格を形成して存在す
るという特異な構造を有するものである。The hydrogen storage alloy of the present invention has a T
It has a unique structure in which an alloy phase mainly composed of Ti and Ni is present in a matrix composed of an iV-based solid solution alloy by forming a three-dimensional network skeleton.
【００１１】上記Ｔｉ−Ｖ系固溶体合金は、合金全体と
してＴｉＶαＮｉβＭγなる組成を有することが望まし
い。上記Ｍは、Ｃｏ、Ｃｕ及びＮｂの少なくとも１種の
元素を示す。これら元素（Ｍ）が全く含まれていない場
合、即ちＴｉＶαＮｉβの３成分系となる場合には、３
次元網目骨格を形成すべき合金相が析出しなくなるおそ
れがあるので好ましくない。なお、本発明の効果を低減
させない限りにおいて、上記以外の他の元素が含まれて
いても良い。上記の組成式中αは１〜１０、βは０．２
〜２、γは０．０２〜０．５の範囲であることが好まし
い。上記α、β及びγのうち１つでも、これらの数値範
囲外となる場合は、水素吸蔵量の低下を引き起こすか、
或いはＴｉ及びＮｉを主成分とする合金相が三次元網目
骨格として析出しなくなるおそれがあるので好ましくな
い。The Ti-V based solid solution alloy desirably has a composition of TiVαNiβMγ as a whole. M represents at least one element of Co, Cu and Nb . When these elements (M) are not contained at all, that is, when a three-component system of TiVαNiβ is used, 3
It is not preferable because the alloy phase that should form the three-dimensional network skeleton may not precipitate. Note that other elements other than those described above may be included as long as the effects of the present invention are not reduced. In the above composition formula, α is 1 to 10, and β is 0.2
And γ are preferably in the range of 0.02 to 0.5. If any one of the above α, β, and γ is out of these numerical ranges, it causes a decrease in the hydrogen storage amount,
Alternatively, an alloy phase containing Ti and Ni as main components may not be precipitated as a three-dimensional network skeleton, which is not preferable.
【００１２】本発明合金中におけるＴｉ及びＮｉを主成
分とする合金相（以下「第２相」という。）は、ＴｉＮ
ｉδＮεなる組成を有する。この組成式中Ｎは、Ｖ、Ｃ
ｏ、Ｃｕ及びＮｂの少なくとも１種の元素を示す。これ
らの元素が含まれていない場合は第２相中のＴｉの溶出
が著しくなるので好ましくない。一方、本発明の効果に
悪影響を及ぼさない範囲であれば、これらの元素以外の
元素が含まれていても差支えない。上記δは０．５〜
２、上記εは０．１〜１の範囲であることが望ましい。
上記δ及びεのいずれかがこれらの数値範囲外となる場
合は、第２相の延性低下による耐久性の低下又は水素吸
蔵反応の阻害を招くこととなるので好ましくない。The alloy phase containing Ti and Ni as main components (hereinafter referred to as "second phase") in the alloy of the present invention is TiN.
It has a composition of iδNε. In this composition formula, N is V, C
It shows at least one element of o, Cu and Nb . If these elements are not contained, the elution of Ti in the second phase becomes remarkable, which is not preferable. On the other hand, elements other than these elements may be contained as long as the effects of the present invention are not adversely affected. The above δ is 0.5 to
2. It is desirable that ε is in the range of 0.1 to 1.
If any of the above δ and ε is out of these numerical ranges, it is not preferable since the ductility of the second phase is reduced and the hydrogen storage reaction is inhibited.
【００１３】上記第２相は、上記のＴｉ−Ｖ系固溶体合
金からなる母相中に３次元網目骨格を形成している。Ｔ
ｉ−Ｖ系固溶体合金における第２相の占める体積割合
は、合金全体の組成、製造条件等によって異なり、合金
の用途等に応じて適宜設定すれば良い。The second phase forms a three-dimensional network skeleton in the matrix composed of the Ti-V-based solid solution alloy. T
The volume ratio occupied by the second phase in the iV-based solid solution alloy varies depending on the composition of the entire alloy, production conditions, and the like, and may be appropriately set according to the use of the alloy.
【００１４】本発明の水素吸蔵合金は、上記のＴｉＶα
ＮｉβＭγなる組成に調製した原料粉末を、アーク溶解
法等の公知の方法により加熱溶解させ、これを冷却する
ことによって得ることができる。上記の原料粉末は、市
販の原料粉末をそのまま適用することができる。また、
必要に応じて、ＣａＢ6 等のように、溶湯から酸化物を
除去する働きをもつ添加剤を配合することもできる。The hydrogen storage alloy of the present invention is characterized in that the above TiVα
The raw material powder prepared to have a composition of NiβMγ can be obtained by heating and melting by a known method such as an arc melting method and cooling the same. As the above-mentioned raw material powder, a commercially available raw material powder can be applied as it is. Also,
If necessary, an additive having a function of removing oxides from the molten metal, such as CaB 6 , can be added.
【００１５】本発明の水素吸蔵合金電極は、上記の本発
明の水素吸蔵合金を含有するものである。例えば、上記
のＴｉＶαＮｉβＭγなる組成に調製した原料粉末に銅
粉等を配合し、これを所定の形状にプレス成形等により
成形すれば得られる。The hydrogen storage alloy electrode of the present invention contains the above hydrogen storage alloy of the present invention. For example, it can be obtained by blending copper powder or the like with the raw material powder prepared to have the above composition of TiVαNiβMγ, and molding this into a predetermined shape by press molding or the like.
【００１６】[0016]
【発明の効果】このように、本発明の水素吸蔵合金は、
母相に対して第２相が３次元網目骨格を形成して存在し
ているので、当該第２相がＴｉ−Ｖ系固溶体合金をマイ
クロカプセル化したような状態となり、これにより水素
の吸蔵・放出に伴う微粉化が大幅に抑制されることとな
る。As described above, the hydrogen storage alloy of the present invention is
Since the second phase exists with respect to the parent phase forming a three-dimensional network skeleton, the second phase becomes a state in which the Ti-V-based solid solution alloy is microencapsulated. The pulverization accompanying the release is largely suppressed.
【００１７】また、第２相が保護膜となって水素吸蔵合
金の主要元素であるバナジウムの溶解を抑制乃至防止す
ることができるので、耐アルカリ性が改善される結果、
サイクル寿命を向上させることができる。さらに、第２
相は、反応触媒相としての役割も果たすため、本発明水
素吸蔵合金を電極として使用する場合には、放電時の反
応速度を増大させることも可能となる。Further, since the second phase acts as a protective film to suppress or prevent the dissolution of vanadium which is a main element of the hydrogen storage alloy, the alkali resistance is improved.
The cycle life can be improved. Furthermore, the second
Since the phase also serves as a reaction catalyst phase, when the hydrogen storage alloy of the present invention is used as an electrode, it is possible to increase the reaction rate during discharge.
【００１８】[0018]
【実施例】以下、実施例を示し、本発明の特徴とすると
ころをより明確にする。The present invention will be described below in more detail with reference to examples.
【００１９】実施例１ 市販のＴｉ、Ｖ、Ｎｉ及びＣｏを用いて、組成がＴｉＶ
3 Ｎｉ0.56Ｃｏ0.05となるように秤量して混合し、アー
ク溶解法により加熱溶解させて合金を作製した。得られ
た合金を樹脂に封入して断面を研磨した後、走査型電子
顕微鏡及びＥＰＭＡにより合金断面の元素分析を行っ
た。その断面の状態を図１に示す。Example 1 Commercially available Ti, V, Ni and Co were used, and the composition was TiV.
3 Ni 0.56 Co 0.05 were weighed and mixed to obtain an alloy by heating and melting by an arc melting method. After enclosing the obtained alloy in a resin and polishing the cross section, element analysis of the alloy cross section was performed by a scanning electron microscope and EPMA. FIG. 1 shows the state of the cross section.
【００２０】この結果、Ｔｉ−Ｖ系固溶体合金相ＴｉＶ
4.27Ｎｉ0.42Ｃｏ0.05の粒界部分にＴｉ及びＮｉを主成
分とする合金相ＴｉＮｉＶ0.30Ｃｏ0.06（白い部分）が
析出し、母相に対して３次元網目骨格を形成しているこ
とが確認された。As a result, the Ti-V based solid solution alloy phase TiV
4.27 It was confirmed that an alloy phase TiNiV 0.30 Co 0.06 (white part) precipitated at the grain boundaries of Ni 0.42 Co 0.05 with Ti and Ni as main components and formed a three-dimensional network skeleton with respect to the parent phase. Was.
【００２１】実施例２ 市販のＴｉ、Ｖ、Ｎｉ及びＮｂを用いて、組成がＴｉＶ
3 Ｎｉ0.56Ｎｂ0.05となるように秤量して混合し、アー
ク溶解法により加熱溶解させて合金を作製した。得られ
た合金を樹脂に封入して断面を研磨した後、走査型電子
顕微鏡及びＥＰＭＡにより合金断面の元素分析を行っ
た。Example 2 Commercially available Ti, V, Ni and Nb were used, and the composition was TiV.
3 Ni 0.56 were weighed so that the Nb 0.05 were mixed to prepare an alloy by heating dissolved by an arc melting method. After enclosing the obtained alloy in a resin and polishing the cross section, element analysis of the alloy cross section was performed by a scanning electron microscope and EPMA.
【００２２】その結果、Ｔｉ−Ｖ系固溶体合金相ＴｉＶ
4.78Ｎｉ0.42Ｎｂ0.29の粒界部分にＴｉ及びＮｉを主成
分とする合金相ＴｉＮｉ1.10Ｖ0.33Ｎｂ0.04が析出し、
母相に対して３次元網目骨格を形成していることが確認
された。As a result, the Ti-V based solid solution alloy phase TiV
4.78 At the grain boundary of Ni 0.42 Nb 0.29 , an alloy phase TiNi 1.10 V 0.33 Nb 0.04 composed mainly of Ti and Ni precipitates,
It was confirmed that a three-dimensional network skeleton was formed with respect to the parent phase.
【００２３】実施例３ 表１に示す組成の本発明合金（試料Ｎｏ．１〜１２）で
電極を作製し、この電極を用いて電池を作製した。Example 3 An electrode was produced from the alloy of the present invention (sample Nos. 1 to 12 ) having the composition shown in Table 1, and a battery was produced using this electrode.
【００２４】試料Ｎｏ．１〜１２の組成の合金粉末０．
２ｇを電解銅粉０．６ｇと混合して直径１３ｍｍのペレ
ット状にプレスした電極を負極とし、水酸化ニッケル電
極を正極とし、６Ｍ水酸化カリウム水溶液を電解液とし
てニッケル−水素電池を作製した。この電池を２０ｍＡ
の電流で５時間充電した後、１０ｍＡの電流で放電させ
た際の充放電サイクル試験の結果を表１に示す。Sample No. Alloy powder of composition 1 to 12
A nickel-hydrogen battery was prepared by mixing 2 g with 0.6 g of electrolytic copper powder and pressing an electrode pressed into a pellet having a diameter of 13 mm as a negative electrode, a nickel hydroxide electrode as a positive electrode, and a 6 M aqueous solution of potassium hydroxide as an electrolyte. This battery is 20mA
Table 1 shows the results of a charge / discharge cycle test when the battery was charged at a current of 5 hours and then discharged at a current of 10 mA.
【００２５】なお、比較のため、本発明合金の組成をも
たない合金粉末を用いて上記と同様にして作製した電極
（比較試料Ｎｏ．１〜４）を用いて同様の電池を作製
し、充放電サイクル試験をした。その結果も表１に併記
する。For comparison, a similar battery was produced using electrodes (comparative samples Nos. 1 to 4) produced in the same manner using an alloy powder having no composition of the alloy of the present invention. A charge / discharge cycle test was performed. The results are also shown in Table 1.
【００２６】[0026]
【表１】 [Table 1]
【図１】実施例１の水素吸蔵合金の結晶構造を走査型電
子顕微鏡で観察した状態を示す図である。FIG. 1 is a view showing a state in which the crystal structure of a hydrogen storage alloy of Example 1 is observed with a scanning electron microscope.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 三島 貴弘 愛知県刈谷市八軒町５丁目50番地 株式 会社イムラ材料開発研究所内 (72)発明者 磯村 秋人 愛知県刈谷市八軒町５丁目50番地 株式 会社イムラ材料開発研究所内 (72)発明者 境 哲男 大阪府池田市緑丘１丁目８番31号 工業 技術院大阪工業技術研究所内 (72)発明者 宮村 弘 大阪府池田市緑丘１丁目８番31号 工業 技術院大阪工業技術研究所内 (72)発明者 上原 斎 大阪府池田市緑丘１丁目８番31号 工業 技術院大阪工業技術研究所内 審査官 酒井 美知子 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takahiro Mishima 5-50, Hachikencho, Kariya-shi, Aichi Pref. Inside the Imla Materials Development Laboratory Co., Ltd. (72) Inventor Akito Isomura 5-50, Hachigencho, Kariya-shi, Aichi Address: Within Imla Materials Development Laboratory Co., Ltd. (72) Inventor Tetsuo Sakai 1-81-3 Midorioka, Ikeda-shi, Osaka Prefecture Inside the Industrial Technology Institute Osaka Industrial Research Institute (72) Inventor Hiroshi Miyamura 1--8-3, Midorioka, Ikeda-shi, Osaka Prefecture 31 Osaka Institute of Industrial Technology, Institute of Industrial Science and Technology
Claims (2)
系固溶体合金からなる母相中に、Ｔｉ及びＮｉを主成分
とする合金相が３次元網目骨格を形成して存在してお
り、 （ｉ）合金全体としてＴｉＶαＮｉβＭγ（但し、Ｍは
Ｃｏ、Ｃｕ及びＮｂ の少なくとも１種の元素、１≦α≦
１０、０．２≦β≦２、０．０２ ≦γ≦０．５）なる組
成を有し、かつ、 （ｉｉ）上記Ｔｉ及びＮｉを主成分とする合金相が、Ｔ
ｉＮｉδＮε（但し、 ＮはＶ、Ｃｏ、Ｃｕ及びＮｂの少
なくとも１種の元素、０．５≦δ≦ ２、０．１≦ε≦
１）なる組成である水素吸蔵合金。 In a Ti-V based solid solution alloy, Ti-V
An alloy phase mainly composed of Ti and Ni is present in a matrix composed of a base solid solution alloy by forming a three-dimensional network skeleton .
Ri, (i) TiVαNiβMγ alloy as a whole (however, M is
At least one element of Co, Cu and Nb , 1 ≦ α ≦
10, 0.2 ≦ β ≦ 2, 0.02 ≦ γ ≦ 0.5)
It has formed, and an alloy phase composed mainly of (ii) the Ti and Ni, T
iNiδNε (where N is a small amount of V, Co, Cu and Nb)
At least one element, 0.5 ≦ δ ≦ 2, 0.1 ≦ ε ≦
1) A hydrogen storage alloy having a composition of:
とを特徴とする水素吸蔵合金電極。2. A hydrogen storage alloy electrode comprising the hydrogen storage alloy according to claim 1 .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6057513A JP2719884B2 (en) | 1994-03-28 | 1994-03-28 | Hydrogen storage alloy and hydrogen storage alloy electrode |
| US08/410,798 US5690799A (en) | 1994-03-28 | 1995-03-27 | Hydrogen-occluding alloy and hydrogen-occluding alloy electrode |
| US08/822,043 US5776626A (en) | 1994-03-28 | 1997-03-24 | Hydrogen-occluding alloy and hydrogen-occluding alloy electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6057513A JP2719884B2 (en) | 1994-03-28 | 1994-03-28 | Hydrogen storage alloy and hydrogen storage alloy electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07268513A JPH07268513A (en) | 1995-10-17 |
| JP2719884B2 true JP2719884B2 (en) | 1998-02-25 |
Family
ID=13057825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6057513A Expired - Lifetime JP2719884B2 (en) | 1994-03-28 | 1994-03-28 | Hydrogen storage alloy and hydrogen storage alloy electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2719884B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07268514A (en) * | 1994-03-28 | 1995-10-17 | Imura Zairyo Kaihatsu Kenkyusho:Kk | Hydrogen occluding alloy and hydrogen occluding alloy electrode |
| US6309779B1 (en) | 1999-02-17 | 2001-10-30 | Matsushita Electric Industrial Co., Ltd. | Hydrogen storage alloy electrode and method for manufacturing the same |
| JP2001266931A (en) * | 2000-03-23 | 2001-09-28 | Sanyo Electric Co Ltd | Nickel-hydrogen storage battery |
| CN102738520B (en) * | 2011-04-14 | 2017-02-15 | 中国科学院长春应用化学研究所 | Nickel-hydrogen storage battery |
| CN112322934B (en) * | 2020-10-15 | 2022-03-25 | 哈尔滨工业大学 | Titanium alloy for bipolar plate of proton exchange membrane fuel cell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5639694A (en) * | 1979-06-20 | 1981-04-15 | Siemens Ag | Method and device for synchrnonizing timing in transmission of digital information signal |
| JPH01165737A (en) * | 1987-11-17 | 1989-06-29 | Kuochih Hong | Hydrogen storing method and hydride electrode material |
| JPH03191040A (en) * | 1989-12-20 | 1991-08-21 | Sanyo Electric Co Ltd | Hydrogen storage alloy electrode |
| JPH03207826A (en) * | 1989-07-21 | 1991-09-11 | Energy Conversion Devices Inc | Manufacture of hydrogen- occluded alloy |
| JPH07268514A (en) * | 1994-03-28 | 1995-10-17 | Imura Zairyo Kaihatsu Kenkyusho:Kk | Hydrogen occluding alloy and hydrogen occluding alloy electrode |
-
1994
- 1994-03-28 JP JP6057513A patent/JP2719884B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5639694A (en) * | 1979-06-20 | 1981-04-15 | Siemens Ag | Method and device for synchrnonizing timing in transmission of digital information signal |
| JPH01165737A (en) * | 1987-11-17 | 1989-06-29 | Kuochih Hong | Hydrogen storing method and hydride electrode material |
| JPH03207826A (en) * | 1989-07-21 | 1991-09-11 | Energy Conversion Devices Inc | Manufacture of hydrogen- occluded alloy |
| JPH03191040A (en) * | 1989-12-20 | 1991-08-21 | Sanyo Electric Co Ltd | Hydrogen storage alloy electrode |
| JPH07268514A (en) * | 1994-03-28 | 1995-10-17 | Imura Zairyo Kaihatsu Kenkyusho:Kk | Hydrogen occluding alloy and hydrogen occluding alloy electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07268513A (en) | 1995-10-17 |
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