JPH04169059A - Hydrogen absorbing alloy electrode for alkaline storage battery - Google Patents
Hydrogen absorbing alloy electrode for alkaline storage batteryInfo
- Publication number
- JPH04169059A JPH04169059A JP2296736A JP29673690A JPH04169059A JP H04169059 A JPH04169059 A JP H04169059A JP 2296736 A JP2296736 A JP 2296736A JP 29673690 A JP29673690 A JP 29673690A JP H04169059 A JPH04169059 A JP H04169059A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- cobalt
- absorbing alloy
- capacity
- hydrogen absorbing
- 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
- 239000000956 alloy Substances 0.000 title claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 32
- 239000001257 hydrogen Substances 0.000 title claims abstract description 26
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000003860 storage Methods 0.000 title claims description 22
- 239000000843 powder Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 150000001869 cobalt compounds Chemical class 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 239000003513 alkali Substances 0.000 claims abstract description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(II) oxide Inorganic materials [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 abstract description 13
- 229910017052 cobalt Inorganic materials 0.000 abstract description 10
- 239000010941 cobalt Substances 0.000 abstract description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003054 catalyst Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 229910052723 transition metal Inorganic materials 0.000 abstract description 2
- 150000003624 transition metals Chemical group 0.000 abstract description 2
- 239000011369 resultant mixture Substances 0.000 abstract 2
- 238000012856 packing Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 21
- 239000010949 copper Substances 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052987 metal hydride Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910019083 Mg-Ni Inorganic materials 0.000 description 1
- 229910019403 Mg—Ni Inorganic materials 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 229910004337 Ti-Ni Inorganic materials 0.000 description 1
- 229910011209 Ti—Ni Inorganic materials 0.000 description 1
- 229910003126 Zr–Ni Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ニッケルー水素蓄電池の負極として用いられ
る水素吸蔵合金電極に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hydrogen storage alloy electrode used as a negative electrode of a nickel-hydrogen storage battery.
従来の技術
今日におけるボータプル機器はめざましく進歩している
。電池においても、よりエネルギー密度の高い電池へと
進歩しつつあり、ニッケルー水素蓄電池が望まれている
のが現状である。BACKGROUND OF THE INVENTION Today's vortaple equipment has advanced tremendously. Batteries are also progressing toward batteries with higher energy density, and nickel-metal hydride storage batteries are currently desired.
ところが、ニッケルー水素蓄電池は、合金の腐食が原因
です・イクル寿命が長くないという欠点がある。However, nickel-metal hydride batteries have the disadvantage of not having a long cycle life due to corrosion of the alloy.
そこで、その欠点を克服するために、水素吸蔵合金の表
面を耐食性のニッケル、銅などの金属で被覆することが
提案されている（特開昭６１−６４０６９号、特開昭６
１−１０１９５７号）。Therefore, in order to overcome this drawback, it has been proposed to coat the surface of the hydrogen storage alloy with corrosion-resistant metals such as nickel and copper (Japanese Patent Application Laid-Open No. 61-64069,
1-101957).
合金粉末へのこれらの金属の被覆方法は、自己触媒型の
湿式無電解めっき法などによって行なわれる。The alloy powder is coated with these metals by autocatalytic wet electroless plating or the like.
然るに合金粉末に金属箔を被覆するということは、作業
の工程の面で繁雑である。無電解めっき法を例にとれば
、めっき液に含浸、攪拌、ろ過、水洗乾燥などの工程が
必要であり、めっき後の廃液の処理などを考えると、製
造のコストアップにつながる。However, coating the alloy powder with metal foil is a complicated process. Taking electroless plating as an example, processes such as impregnation in the plating solution, stirring, filtration, washing and drying are required, and considering the treatment of waste liquid after plating, etc., this leads to an increase in manufacturing costs.
又、めっき後の重量でエネルギー密度を考えると、めっ
き層目体は容量に寄与しないので、エネルギー密度の低
下を招く。Furthermore, when considering the energy density in terms of the weight after plating, the plating layer does not contribute to the capacity, leading to a decrease in the energy density.
発明が解決しようとする課題
本発明は上記従来の問題点に鑑みなされたものであり、
製造の工程を簡略化し、高容量化、サイクルの長寿命化
を図るものである。Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned conventional problems.
The aim is to simplify the manufacturing process, increase capacity, and extend cycle life.
課題を解決するための手段
本発明は上記課題を解決するべく、ＭｍＮ ｉ＊Ａｌｙ
のＮｉ、Ａｌの一部をＦｅ、”Ｃｕ、Ｃｏ、Ｍｎの１種
もしくは２種以上で置換した水素吸蔵合金粉末にコバル
ト化合物を３〜２０ｗｔ％の範囲内で混合し、このもの
を耐アルカリ性金属多孔板内に充填して電極とすること
を特徴とするアルカリ蓄電池用水素吸蔵合金電極で”あ
る。Means for Solving the Problems In order to solve the above problems, the present invention provides MmN i*Aly
A cobalt compound is mixed in a range of 3 to 20 wt% to a hydrogen storage alloy powder in which a part of Ni and Al is replaced with one or more of Fe, Cu, Co, and Mn, and this product is made into an alkali-resistant powder. This is a hydrogen storage alloy electrode for alkaline storage batteries, which is characterized by being filled into a metal porous plate to form an electrode.
作用
コバルトは、３ｄ−軌道を持っている遷移金属であり、
水素極としての触媒として働き、又金属コバルトの導電
性向上の働きにより、水素吸蔵合金粉末と一酸化コバル
ト粉末を混合形成した電極では容量が上がり、サイクル
寿命が伸びる。Working cobalt is a transition metal with a 3d-orbital,
Since it acts as a catalyst for hydrogen electrodes and also improves the conductivity of metal cobalt, an electrode made of a mixture of hydrogen storage alloy powder and cobalt monoxide powder has a higher capacity and a longer cycle life.
実施例
一酸化コバルト粉末を添加したもの、金属銅粉末を添加
したもの、金属ニッケル粉末を添加したもの、グラファ
イト粉末を添加したもの、何も添加しないもの、ニッケ
ルめっきを施したもの、と比較すると、容量の点や、サ
イクル寿命の点に違いがでる。Comparison of examples: one with cobalt monoxide powder added, one with metallic copper powder added, one with metallic nickel powder added, one with graphite powder added, one with nothing added, and one with nickel plating. , there are differences in capacity and cycle life.
以下１、本発明の詳細について説明する。The details of the present invention will be explained below in 1.
水素吸蔵合金とその電極は、以下の方法で作製した。The hydrogen storage alloy and its electrode were produced by the following method.
希土類元素の混合物であるミツシュメタルＭｍと、Ａｌ
、Ｆｅ、Ｃｕの各成分元素を高周波溶解炉で溶解し、Ｍ
ｍＮ ｉ３．ｖ Ａ Ｉｅ、＊ Ｆ ｅ。、５Ｃｕｏ、
＋ の組成比の水素吸蔵合金を作製した。この合金をア
ルゴン雰囲気下で熱処理した後、２００メツシユ以下に
粉砕し、水素吸蔵合金粉末を得た。この水素吸蔵合金に
対し一酸化コハルト粉末を１０−ｔ％添加し混合した後
、ポリビニルアルコールの３ｗｔ％の水Ｗｉ Ｈテヘー
スト状とした。ついで、このペーストを多孔度９５％の
ニッケル多孔体に充填し、真空乾燥後加圧して電極を作
製した。金属ｗ４ＦＡ末を添加したもの、金属ニッケル
粉末を添加したもの、グラファイト粉末を添加したもの
、ニッケルめっきを施したものについても゛同様の方法
で電極を作製した。Mitsushmetal Mm, which is a mixture of rare earth elements, and Al
, Fe, and Cu are melted in a high-frequency melting furnace to form M
mN i3. v A Ie, * F e. ,5Cuo,
A hydrogen storage alloy with a composition ratio of + was produced. This alloy was heat treated in an argon atmosphere and then ground to 200 mesh or less to obtain a hydrogen storage alloy powder. After adding and mixing 10-t% of cohardt monoxide powder to this hydrogen-absorbing alloy, a mixture of 3 wt% of polyvinyl alcohol was formed into a water Wi H technology. Next, this paste was filled into a nickel porous body with a porosity of 95%, vacuum dried, and then pressurized to produce an electrode. Electrodes to which metal w4FA powder was added, metal nickel powder, graphite powder, and nickel plating were also produced in the same manner.
この様に作製した水素吸蔵合金電極を負極として、対極
には、負極容量より大なるニッケル電極を用いて、比重
１．２４のＫＯＨｔ解液中で充放電し、水素吸蔵合金電
極の電気化学的容量を測定した。The hydrogen storage alloy electrode prepared in this way was used as a negative electrode, and a nickel electrode with a larger capacity than the negative electrode was used as the counter electrode, and the hydrogen storage alloy electrode was charged and discharged in a KOHt solution with a specific gravity of 1.24. Capacity was measured.
充電は０．ＩＣで１δＯ％、放電は０．２０で電池電圧
が１■になるまで行なった。Charge is 0. The battery was discharged at 1.delta.O% with an IC of 0.20 until the battery voltage reached 1.times.
第１図に上記に示した電気化学的容量のサイクル変化を
示す（サイクル数に対して容量を一酸化コバルト粉末添
加の１サイクル目の容量を１００％として表わしだもの
である）。FIG. 1 shows the cycle change in the electrochemical capacity shown above (the capacity is expressed relative to the number of cycles, with the capacity of the first cycle of addition of cobalt monoxide powder taken as 100%).
水素吸蔵合金だけの電極は、短いサイクルで容量の低下
をきたす、水素吸蔵合金電極の劣化は、合金表面に析出
した腐食生成物、たとえば、Ｌａ（ＯＨ）ｚの様な導電
性の無い物質によって、合金粒子間の電子移動が不可能
になるためではないかと考えられる。金属銅粉末、金属
ニッケル粉末、グラファイト粉末を添加した電極は、初
期容量は、合金のみと同しであるが、サイクルによる容
量の低下を防止している。その働きは、劣化後の粒子間
の導電性を確保しているものと考えられる。Electrodes made only of hydrogen-absorbing alloys experience a decrease in capacity in short cycles. Deterioration of hydrogen-absorbing alloy electrodes is caused by corrosion products deposited on the alloy surface, such as non-conductive substances such as La(OH)z. This is thought to be due to the fact that electron transfer between alloy particles becomes impossible. Electrodes containing metallic copper powder, metallic nickel powder, and graphite powder have the same initial capacity as the alloy alone, but the capacity is prevented from decreasing due to cycling. Its function is thought to be to ensure conductivity between particles after deterioration.
ニッケルめっきを施したものは、粒子の表面がニッケル
で覆われているので、劣化後はもとより、劣化以前より
導電性による効果が現われ合金の利用率が上がり、１サ
イクル目からやや高い容量を示す。In the case of nickel-plated particles, the surface of the particles is covered with nickel, so the conductivity effect appears not only after deterioration but also before deterioration, increasing the utilization rate of the alloy and exhibiting a slightly higher capacity from the first cycle. .
注目すべきは、−酸化コバルト粉末添加の挙動であり、
１サイクル目から他のものより高い容量を示し、１５サ
イクル目までにさらに容量を高め、サイクル寿命も長い
。Of note is the behavior of - cobalt oxide powder addition;
It shows a higher capacity than the others from the first cycle, further increases the capacity by the 15th cycle, and has a long cycle life.
ニッケルや銅は電解液中における、電池作動電位におい
て、耐食性のある金属であるが、コバルトは、第２図に
示すようにサイクリックポルタムグラムからみて、以下
の反応が極板内で起こっているものと推定され、コバル
トがサイクル中に溶解析出を繰り返し、水素吸蔵合金粉
末や、腐食生成物を覆い巻き込みながら、金属コバルト
の導電性ネットワークを形成するものと考えられる。Nickel and copper are corrosion-resistant metals in the electrolyte at the battery operating potential, but with cobalt, the following reaction occurs within the electrode plate, as seen from the cyclic portum gram shown in Figure 2. It is thought that cobalt repeats dissolution precipitation during the cycle, covering and enveloping the hydrogen storage alloy powder and corrosion products, forming a conductive network of metallic cobalt.
放電 放電
Ｃｏ ＝＝Ｃｏ （ＴＩ ）錯イオン ；＝Ｃｏ （Ｏ
Ｈ） ｚ充電 充電
１サイクル〜１５サイクルの容量の増加は、この導電性
ネットワークの形成段階であり、水素吸蔵合金の利用率
の上昇である。サイクル寿命がより長くなるのは、サイ
クルの繰り返しによりそのネットワークの補強がなされ
ているものと考えられる。Discharge Discharge Co ==Co (TI) complex ion ;=Co (O
H) z Charging The increase in capacity from 1 cycle to 15 cycles of charging is the formation stage of this conductive network and is an increase in the utilization rate of the hydrogen storage alloy. The longer cycle life is thought to be due to the reinforcement of the network through repeated cycles.
初期容量が高いことや、−酸化コバルト粉末添加が、特
異的に容量が高いのは、導電性の点板外に次のように考
えられる。３ｄ〜軌道を持つコバルトは、水素電橋にお
ける水素のイオン化触媒として知られている。本発明に
おける一酸化コバルト粉末添加は、放電の律速であるイ
オン化過程を、還元された金属コバルトが触媒的に働い
ているものと考えられる。The reason why the initial capacity is high and the capacity is uniquely high due to the addition of -cobalt oxide powder is thought to be due to the following reasons other than the conductive point plate. Cobalt having a 3d ~ orbital is known as a hydrogen ionization catalyst in hydrogen bridges. In the present invention, the addition of cobalt monoxide powder is considered to be because the reduced metallic cobalt acts as a catalyst in the ionization process that determines the rate of discharge.
つまり一酸化コバルト粉末を添加することが、高容量化
、長寿命化に関して好ましいことがわかる。更に他のコ
バルトの酸化物や水酸化物、具体的にはＣｏ５０ａなど
でも効果を有するものである。In other words, it can be seen that adding cobalt monoxide powder is preferable in terms of increasing capacity and extending life. Furthermore, other cobalt oxides and hydroxides, specifically Co50a, etc., are also effective.
またＭｍＮ １ｘ Ａ ｌｖの一部をＦｅ、 Ｃｕ。Also, part of MmN 1x A lv is Fe and Cu.
Ｃｏ、Ｍｎの１種もしくは２種以上で置換した水素吸蔵
合金に限定されず、一般式ＡＢ、ＣＶ（Ａ：Ｍｍ、Ｙ、
Ｔｉ、Ｈｆ、Ｚｒ、Ｃａ。Not limited to hydrogen storage alloys substituted with one or more of Co, Mn, general formula AB, CV (A: Mm, Y,
Ti, Hf, Zr, Ca.
Ｔｈ、Ｌａ、 Ｂ：Ｎｉ、Ｃｏ、Ｃｕ、Ｆｅ。Th, La, B: Ni, Co, Cu, Fe.
Ｍｎ、２種以上、Ｃ：Ａ１．Ｃｒ、Ｓｔ）およびＺｒ−
Ｍｎ系、Ｚｒ−Ｎｉ系、Ｔ ｉ −Ｎ ｉ系。Mn, 2 or more types, C: A1. Cr, St) and Zr-
Mn-based, Zr-Ni-based, Ti-Ni-based.
Ｍｇ−Ｎｉ系等の水素吸蔵合金に対しても効果を有する
ものである。It is also effective for hydrogen storage alloys such as Mg-Ni.
なお、本実施例では、ニッケル多孔体基板を用いた例を
示したが、本発明はこれに限らず、エキスバンドメタル
、メタルメツシュ、ニッケルめっきパンチングメタル等
を基板として用いてもよい。Although this embodiment shows an example using a porous nickel substrate, the present invention is not limited to this, and expanded metal, metal mesh, nickel-plated punched metal, or the like may be used as the substrate.
また、本発明では、コバルト化合物を用いたが、７）Ｌ
ｉｔＪり電解液中で熔解しえるコバルト含有合金を添加
しても同様の効果を有する。In addition, in the present invention, a cobalt compound was used, but 7) L
Addition of a cobalt-containing alloy that is soluble in the itJ electrolyte has a similar effect.
発明の効果
上述した如く、エネルギー密度が高く、長寿命の水素吸
蔵電極を、製造の工程を簡略化することで、より安価に
提供することができるので、その工業的価値は橿めて大
である。Effects of the Invention As mentioned above, a hydrogen storage electrode with high energy density and long life can be provided at a lower cost by simplifying the manufacturing process, so its industrial value is extremely large. be.
第１図はサイクル数と容量の関係の図、第２図はＣｏの
サイクリックポルタムグラムの図である。FIG. 1 is a diagram showing the relationship between the number of cycles and capacity, and FIG. 2 is a diagram showing a cyclic portum gram of Co.
Claims (1)
、Ｃｏ、Ｍｎの１種もしくは２種以上で置換した水素吸
蔵合金粉末にコバルト化合物を３〜２０ｗｔ％の範囲内
で混合し、このものを耐アルカリ性金属多孔板内に充填
して電極とすることを特徴とするアルカリ蓄電池用水素
吸蔵合金電極。Part of Ni and Al in MmNi_XAl_Y is replaced with Fe and Cu.
A cobalt compound is mixed in a range of 3 to 20 wt% with a hydrogen storage alloy powder substituted with one or more of Co, Co, and Mn, and this is filled into an alkali-resistant metal porous plate to form an electrode. A hydrogen storage alloy electrode for alkaline storage batteries characterized by:
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29673690A JP3379539B2 (en) | 1990-10-31 | 1990-10-31 | Hydrogen storage alloy electrode for alkaline storage batteries |
| DE69117068T DE69117068T2 (en) | 1990-10-29 | 1991-10-22 | HYDROGEN STORAGE ELECTRODE, NICKEL ELECTRODE AND NICKEL HYDROGEN BATTERY |
| EP91917825A EP0557522B1 (en) | 1990-10-29 | 1991-10-22 | Hydrogen-storing electrode, nickel electrode, and nickel-hydrogen battery |
| DK91917825.1T DK0557522T3 (en) | 1990-10-29 | 1991-10-22 | Hydrogen storage electrode, nickel electrode and nickel-hydrogen battery |
| CA002095036A CA2095036C (en) | 1990-10-29 | 1991-10-22 | Metal hydride electrode, nickel electrode and nickel-hydrogen battery |
| US08/050,025 US5393616A (en) | 1990-10-29 | 1991-10-22 | Metal hydride electrode |
| PCT/JP1991/001445 WO1992008251A1 (en) | 1990-10-29 | 1991-10-22 | Hydrogen-storing electrode, nickel electrode, and nickel-hydrogen battery |
| US08/370,987 US5506070A (en) | 1990-10-29 | 1995-01-10 | Metal hydride electrode, nickel electrode and nickel-hydrogen battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29673690A JP3379539B2 (en) | 1990-10-31 | 1990-10-31 | Hydrogen storage alloy electrode for alkaline storage batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04169059A true JPH04169059A (en) | 1992-06-17 |
| JP3379539B2 JP3379539B2 (en) | 2003-02-24 |
Family
ID=17837438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29673690A Expired - Fee Related JP3379539B2 (en) | 1990-10-29 | 1990-10-31 | Hydrogen storage alloy electrode for alkaline storage batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3379539B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5512385A (en) * | 1994-02-28 | 1996-04-30 | Matsushita Electric Industrial Co., Ltd. | Hydrogen storage alloy and nickel-metal hydride storage battery using the same |
| US6322925B1 (en) | 1997-08-28 | 2001-11-27 | Sanyo Electric Co., Ltd. | Metal hydride alkaline storage cell |
| CN115971473A (en) * | 2022-12-06 | 2023-04-18 | 中国科学院过程工程研究所 | A kind of MXenes-chromium alloy and its preparation method and hydrogen storage application |
-
1990
- 1990-10-31 JP JP29673690A patent/JP3379539B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5512385A (en) * | 1994-02-28 | 1996-04-30 | Matsushita Electric Industrial Co., Ltd. | Hydrogen storage alloy and nickel-metal hydride storage battery using the same |
| US6322925B1 (en) | 1997-08-28 | 2001-11-27 | Sanyo Electric Co., Ltd. | Metal hydride alkaline storage cell |
| US6852447B2 (en) | 1997-08-28 | 2005-02-08 | Sanyo Electric Co., Ltd. | Metal hydride alkaline storage cell and manufacturing method thereof |
| US6902588B2 (en) | 1997-08-28 | 2005-06-07 | Sanyo Electric Co., Ltd | Manufacturing method of metal hydride alkaline storage cell |
| CN115971473A (en) * | 2022-12-06 | 2023-04-18 | 中国科学院过程工程研究所 | A kind of MXenes-chromium alloy and its preparation method and hydrogen storage application |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3379539B2 (en) | 2003-02-24 |
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