JPS62259344A - Hydrogen absorbing electrode - Google Patents
Hydrogen absorbing electrodeInfo
- Publication number
- JPS62259344A JPS62259344A JP61102849A JP10284986A JPS62259344A JP S62259344 A JPS62259344 A JP S62259344A JP 61102849 A JP61102849 A JP 61102849A JP 10284986 A JP10284986 A JP 10284986A JP S62259344 A JPS62259344 A JP S62259344A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- hydrogen absorbing
- hydrogen storage
- hydrogen
- electrode
- 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
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 49
- 239000001257 hydrogen Substances 0.000 title claims abstract description 49
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 42
- 239000000956 alloy Substances 0.000 claims abstract description 42
- 229910052745 lead Inorganic materials 0.000 claims abstract description 5
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 4
- 229910052738 indium Inorganic materials 0.000 claims abstract description 4
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 3
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 3
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 3
- 229910052787 antimony Inorganic materials 0.000 claims abstract 2
- 229910052716 thallium Inorganic materials 0.000 claims abstract 2
- 229910052725 zinc Inorganic materials 0.000 claims abstract 2
- 239000000843 powder Substances 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 239000011230 binding agent Substances 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000006230 acetylene black Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- MSNOMDLPLDYDME-UHFFFAOYSA-N gold nickel Chemical compound [Ni].[Au] MSNOMDLPLDYDME-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract 1
- 229910052746 lanthanum Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000007792 addition Methods 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001143500 Aceraceae Species 0.000 description 1
- 101100169840 Drosophila melanogaster mahj gene Proteins 0.000 description 1
- 241000738824 Hottonia palustris Species 0.000 description 1
- 229910000858 La alloy Inorganic materials 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 229910003267 Ni-Co Inorganic materials 0.000 description 1
- 229910003262 Ni‐Co Inorganic materials 0.000 description 1
- 229910018106 Ni—C Inorganic materials 0.000 description 1
- 229910018198 Ni—Co—M Inorganic materials 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 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
- 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
-
- 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
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/242—Hydrogen storage electrodes
-
- 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
Abstract
Description
【発明の詳細な説明】
ピ〕 産業上の利用分野
この発明は、アルカリ蓄′＃ｌＬ池の隘極７よどに用い
らｎる水素吸蔵電極に関するものである。DETAILED DESCRIPTION OF THE INVENTION B. Field of Industrial Application This invention relates to a hydrogen storage electrode used in the pole 7 of an alkaline storage pond.
（ロ）従来の技術
従来からよ（用いられている蓄電池とじてにニッケルー
カドミウム蓄電池の如きアルカリ蓄電池、あるいは鉛蓄
電池などがあるが、近年、こｎらの域准エリ軽蓋且つ高
容愈で高エネルギー密度となる町１目注のある。水素吸
蔵合金を用いてなる水素吸Ｒ１極？陰極に備えた金属−
水素アルカリ蓄電池が注目さ几ている。(b) Conventional technology Traditionally, storage batteries used include alkaline storage batteries such as nickel-cadmium storage batteries, and lead-acid storage batteries, but in recent years, these types of batteries have been developed with light lids, high capacity, and high capacity. The city is attracting attention for its energy density.Hydrogen absorbing R1 electrode made of hydrogen absorbing alloy?Metal for cathode-
Hydrogen-alkaline storage batteries are attracting attention.
上記の工うな水素吸蔵合金としてぼ１例えば特公昭５９
−４９６７１号公報に開示さｎているように、ＬａＮ１
３やその改良である三元素系のＬａＮｉ ４ＣＯ、Ｌａ
Ｎｉ ４ｃｕ及びＬａＮ１ａ、ａＦｅｏ、２ｒｚどの合
金が知ら−ｎ”ｌ：＃ｌハこｎらの合金粉末を導電材粉
末と共に焼結してなる多孔体を水素吸蔵を他としたり、
あるいにこｎら水素吸蔵合金粉末と４′ＩＩＩＬ材粉末
との混合物を耐電解液性の粒子状結ｉｉ剤に工つて電也
叉待体Ｖｃ固看させて水素吸蔵電極とする方法などが採
らｎでいる。As the hydrogen storage alloy mentioned above, for example,
As disclosed in Publication No.-49671, LaN1
3 and its improved three-element system LaNi 4CO, La
Alloys such as Ni 4cu, LaN1a, aFeo, and 2rz are known, and porous bodies made by sintering these alloy powders together with conductive material powders can be used for hydrogen storage,
Alternatively, a mixture of a hydrogen storage alloy powder and a 4'IIIL material powder is made into a particulate binding agent that is resistant to electrolyte solution, and a hydrogen storage electrode is made by fixing the electrically intersecting body Vc. is taken n.
（ハ）発明が解決しょうとする問題点
しかしながら、上記従来の水素吸蔵合金に電池内のアル
カリ電解層に対する耐蝕性が低く、この合金の屑蝕ｌＣ
Ｃる電極の特注省化ＶＣ−リ、水紫吸蔵電極のサイクル
特注に問題がある。また、この檀の水素吸蔵電極に用い
らｎる水素吸蔵合金は。(c) Problems to be solved by the invention However, the conventional hydrogen storage alloy described above has low corrosion resistance to the alkaline electrolyte layer in the battery, and the corrosion resistance of this alloy to the alkaline electrolyte layer in the battery is low.
There is a problem with the custom-made cycle saving of the C-ru electrode and the water-violet absorption electrode. In addition, the hydrogen storage alloy used for this hydrogen storage electrode is as follows.
上記電池に組込まｎた状態に３いて電池の光放電により
て隘極活物質である水素を吸蔵しあるいζ放出するもの
であり１元放電サイクルに伴り上記吸蔵尋放出の繰り返
しによって合金格子が変形して微粉化を起こすと４５問
題もあり、微粉化した水素吸蔵合金が電極から脱落する
のでｍｃａサイクル中にお１する電極容量の低下が大き
くなってしまう。When incorporated into the battery, it absorbs or releases hydrogen, which is the polar active material, by photodischarge of the battery, and the alloy lattice is formed by repeating the occlusion and release during the single discharge cycle. There is also a problem when the hydrogen storage alloy is deformed and pulverized, and the pulverized hydrogen storage alloy falls off from the electrode, resulting in a large decrease in electrode capacity during the mca cycle.
に）問題ｌ：Ｌ’を解決する几めの手段本発明の水素吸
蔵電極は式ＬａＮｉｘＣｏｙＭｚ（但しＭｒ！Ａｇ、Ｚ
ｎ、Ｇａ、Ｉｎ、Ｇｏ。) Problem l: Elaborate means to solve L' The hydrogen storage electrode of the present invention has the formula LaNixCoyMz (where Mr!Ag, Z
n, Ga, In, Go.
Ｓｂ 、 Ｔｚ 、 Ｐｂ 、Ｗ、 Ｂ ｉ、ａｍ６選
ばｎ７を少なくとも１５１の元素、４５≦ｘ＋ｙ＋ｚ≦
５．５．０＜Ｚ＜２．０）で表わされる水素吸蔵合金を
含んでなることを要旨とする◎
（ホ）作 用
上紀組氏式で示さｎる水素吸蔵合金は合金腐食による４
ｖ注劣化が小さく且つ合金微粉化による容量低下が少な
いので、吸蔵水素の利用率が同上し長期サイクル％注に
優れた水素吸蔵合金を提供することかでさる。Sb, Tz, Pb, W, B i, am6 selected n7 is at least 151 elements, 45≦x+y+z≦
5.5.0 < Z < 2.0) ◎ (E) Effect Hydrogen storage alloy n shown in the Jokigumi formula is 4 due to alloy corrosion.
The purpose of this invention is to provide a hydrogen storage alloy which has a low deterioration and a small decrease in capacity due to alloy pulverization, so the utilization rate of stored hydrogen is the same as above and the long-term cycle rate is excellent.
（へ）＊ｍ例
、６ヒＬ
市販のＬａ（純ｇ９９．５％以上）、Ｎ１（９９八
ｉ以上ＬＣＯ（純嵐９９％以上］Ｊ及び前記式％式％Ｓ
ｂ、Ｔｊ、Ｐｂ、Ｗ及びＢｉｔｒ−ら選ばｎた少なくと
も１６１の金楓ｔ−ｌＧ１表の組底比で大々秤量し。(to) *m example, 6hiL Commercially available La (99.5% or more pure g), N1 (998i or more LCO (99% or more pure Arashi) J and the above formula % formula %S b, Tj, Pb, At least 161 gold maples selected by W and Bitr et al.
且つ混合しＳ久いで不活性アルゴン雰囲気下で７−ク溶
牌炉に人乳て加熱溶解して合金化し、冷却した後機械的
に５０声ｍ以下に粉砕して各種組成の水素吸蔵合金粉末
を得喪。After mixing, the mixture is heated and melted in a 7-kilogram melting furnace under an inert argon atmosphere to form an alloy, and after cooling, it is mechanically crushed to a size of 50 mm or less to produce hydrogen storage alloy powders of various compositions. Mourning.
こｎらの各植水素吸賊合金粉末を８０憲ｔ％、導電材と
してのアセチレンブラックｔ−１０！量％。Each of these hydrogen absorbent alloy powders is used at 80% t%, and acetylene black T-10 is used as a conductive material! amount%.
及び結着剤としてのフッ素樹脂粉末ｔ−１０重量％ずつ
そｎぞｎ混合し、またこのフッ素樹脂を繊維化させた俊
、ニッケル金線で混合物を包み込み且つ５ｔｏｎ／−で
刀口圧成型して各種の水素吸蔵４１′ｌｊを作製した。and 10% by weight of fluororesin powder as a binder were mixed together, and the mixture was wrapped with nickel gold wire made of fiberized fluororesin, and the mixture was press-molded at 5 tons/-. Various hydrogen storage 41'lj were fabricated.
尚、こｎらの水素吸蔵電極に用いた水素吸蔵合金粉末ｊ
１は大々１．５２である。In addition, the hydrogen storage alloy powder used for these hydrogen storage electrodes
1 is roughly 1.52.
そして、上記で得た水素吸蔵電極ｔ−線陰極し。Then, the hydrogen storage electrode obtained above was used as the t-line cathode.
こｎに理論放電容量が６００ｍＡＨの公知の焼結式ニッ
ケル電極を陽極として組合せ、アルカリ電屏液として水
酸化カリウム溶液を用−て、密閉型ニッケルー水素アル
カリ蓄”［ａ（Ａ−Ｗ）を作製した。A well-known sintered nickel electrode with a theoretical discharge capacity of 600 mAH was combined as an anode, and a potassium hydroxide solution was used as the alkaline electrolyte to form a closed type nickel-hydrogen alkaline storage (a(A-W)). Created.
、＝ ｎ Ｅ） Ｏ’４池Ａ−Ｗｆ４に１間率（（Ｌ２
５Ｃ）Ｏ電流で５時間放電した後、２時間率（α５Ｃ）
の電流で電池電圧が１．ＯＶＫなるまで放電するという
条件で光放電フイクル試験七行ない、サイクル寿命ｔｍ
ぺた。電池Ａ、Ｖの初期の放電容量（ｍＡＨＪとサイク
ル寿命（回〕を＃４表に併せて示し友。, = n E) O'4 Pond A-Wf4 has a rate of 1 ((L2
5C) After discharging for 5 hours with O current, the 2 hour rate (α5C)
With a current of , the battery voltage is 1. A photodischarge film test was performed for seven cycles under the condition of discharging until OVK, and the cycle life tm
Peta. The initial discharge capacity (mAHJ) and cycle life (times) of Batteries A and V are also shown in Table #4.
以下余白
上表より、Ｌａ−Ｎｉ−Ｃｏの３成分系の水素吸蔵合金
ｒアルＬ＆Ｎ ｌ ２ Ｃｏ ｓ、ＬａＮｉ ｓ Ｃ０
２ｉ大々含んでなる水素吸蔵合金ｔ”陰極に使用した比
較用のｔ池Ｔ、Ｕは、サイクル特性あるいに電池放電容
量が差程扁くＩよい。こｎに対して。Below, from the table above in the margin, three-component hydrogen storage alloys of La-Ni-Co are L&N l 2 Cos, LaNi s C0
Comparative cells T and U used for the cathode of the hydrogen storage alloy T'' which contains a large amount of 2i are much thinner and better in cycle characteristics and battery discharge capacity.
本発明に係るＬａ−Ｎｉ−Ｃｏ−Ｍの４成分系の水素吸
蔵合金を用いた’１４／ｌＩ！Ａ、 Ｐ ＃よび５成分
系の水素吸蔵合金を用いた電５Ｑ−８は、サイクル特性
が上記を池Ｔ、Ｕに較べて著しく同上しているＯ
この工すに本発明に係る電池Ａ〜Ｓの特注がよいのは、
−極である水素吸蔵合金に用いた水素吸蔵合金として、
前記組成式１ｃｓｖｈてＭで表わした１種またはそれ以
上の元素七添加含何させたものを用いたことに衣ること
は明ら刀１である。そして上表に８いて本発明電池Ａ〜
Ｄ、Ｇ〜に、Ｑ〜Ｓ。'14/lI using the La-Ni-Co-M four-component hydrogen storage alloy according to the present invention! Battery 5Q-8, which uses A, P # and a five-component hydrogen storage alloy, has cycle characteristics that are significantly better than batteries T and U. The advantage of custom S is that
- As a hydrogen storage alloy used in the hydrogen storage alloy that is the pole,
It is obvious that the above compositional formula 1csvh is based on the use of one or more of the elements represented by M. And in the table above, there are 8 and this invention battery A~
D, G~, Q~S.
比較を池Ｔ、Ｖの実験結果より添加含倚させる元素とし
て特にｌｂ族からｙｂ族に層するＧａ、Ｉｎ、Ｇｅ、Ｓ
ｂｆ：用いた場合、！池すイクル特性の向上が著しいこ
とがわかる。こ八はこの元素の添加Ｖｃよって水素吸蔵
合金のアルカリ電解液中での耐蝕性が非常に向上したこ
とＶＣ依るものと−Ｖえらｎる。Based on the experimental results of Ike T and V, Ga, In, Ge, and S, which are added to the layers from the lb group to the yb group, are considered as elements to be added.
bf: When used, ! It can be seen that the water cycle characteristics are significantly improved. The reason for this is that the corrosion resistance of the hydrogen storage alloy in an alkaline electrolyte was greatly improved by the addition of this element.
まり不発ｎ電？ｔＩ！Ｅ、 Ｆ’、 Ｌ−Ｑ、比較’Ｋ
ｍＴ。Mari misfire n electricity? tI! E, F', L-Q, comparison 'K
mT.
Ｕ 、 ＷＬＤ夷験結未エリ添加宮町させる元素として
遷移輩稿に４するＡｇ 、Ｚｎｉ用いた場合サイクル特
注同上に加えて、水素吸蔵電極の容量が同上してｔ准の
放１を容量が増大する効果がある。これに、こｎら元素
の添加にエリ水素吸蔵合金内に吸蔵ざｎる陰極活物質で
ある水素の安定性か減少して吸蔵・放出がさｎ易くなる
結果、水素吸蔵′ｒＩＬ極での水素の邂気化学的オＵ用
率が上昇したためと考えらする。更に上表エリＧａを添
加した１ＩＣ池Ａ。When Ag and Zni are used in the transition paper as elements that cause U, WLD experiments and unresolved additions, in addition to the above, the capacity of the hydrogen storage electrode is the same as above, and the capacity of the release 1 of t is increased. It has an increasing effect. In addition, the addition of these elements reduces the stability of hydrogen, which is the cathode active material that is stored in the hydrogen storage alloy, and makes it easier to store and release hydrogen. It is thought that this is due to an increase in the chemical usage rate of hydrogen. Furthermore, 1IC Pond A added Eri Ga in the above table.
Ｇ−Ｋ Ｐ Ｖ Ｉ Ａ ｇ ’を市１Ｍ Ｌ＆’ＱＥ
ａＥ、 ｔ、、ｐ 、 ’ＩＩの実験結果エリ水素吸
蔵合金の前記組成式に於て。G-K P V I A g' to city 1M L&'QE
Experimental results of aE, t,, p, 'II in the above composition formula of the hydrogen storage alloy.
２の値が０．５の場合が最も効果があり、２の増加に従
って効果が減少し、２の値が２．０より大さい場合にぼ
逆に特性が悪化する。したがつて上記Ｍで表わさｎる元
素の合並への添加（としては前記組成式にＳいてＯ＜Ｚ
＜２．０の範囲がよい。The effect is most effective when the value of 2 is 0.5, the effect decreases as 2 increases, and the characteristics worsen when the value of 2 is greater than 2.0. Therefore, the addition of n elements represented by M above (as in the above compositional formula, if S and O<Z
A range of <2.0 is preferable.
ｔｆｃ、 ｍＮ＋ＪＬａＫ、Ｌ ａ Ｎ ｉ ｘ Ｃｏ
ｙＭｘで示される合金はＣａＣｕ５型の六方晶４４造
【もち、この六万晶溝造を狩つ合金では化学に綱的にＡ
Ｂ５（Ａｒｒ、上ａｄｆｆｉｇ式でＬａｋ、ま７ＨＢＨ
Ｎｉ−Ｃ。tfc, mN+JLaK, LaNixCo
The alloy indicated by yMx has a CaCu5-type hexagonal crystal structure of 44 crystals.
B5 (Arr, Lak in the upper addfig formula, 7HBH
Ni-C.
−Ｍ合金を表わ丁）刀・ら若干ずｎ九組成でも六万晶郁
還を維付するが、Ｂの組匡比が±１０鳴より人さくずｎ
るとこの１造を保てず、第４Ｍ、分であるよ＠ｄＭで表
わさｎる元素の暉加の付熱に拘らず丞索ａ斌合金として
の特性が損わｎる。よって。- Although M alloy is represented by a sword, the ratio of 60,000 crystals is maintained even if the composition is 9.
In this case, this structure cannot be maintained, and the properties as an alloy are impaired regardless of the heating of the element represented by dM. Therefore.
上記組成式Ｖｃｊ６いてｘ＋ｙ＋ｚの値に４５以上且つ
５．５以下とする必要があり、こうすることで水素吸蔵
合金の前犯倣粉化及び微粉化に伴う１極からの酋輩７悦
？！８を効果面に防げる。尚水素吸蔵合金ＶＣ示加言何
させる元素としては上記英見例に挙け＾ものの他、Ｔｚ
、Ｐｂ、ｂｌ／、Ｂｉなども置台。In the above compositional formula Vcj6, the value of x + y + z must be 45 or more and 5.5 or less, and by doing so, it is possible to reduce the number of seniors from one pole due to the pulverization and pulverization of the hydrogen storage alloy. ! 8 can be effectively prevented. In addition to the above-mentioned examples, the elements that cause the addition of hydrogen storage alloy VC include Tz
, Pb, bl/, Bi, etc. are also placed on the stand.
耐食性同上に効果があり、水累吸蔵′１櫃のサイクル特
性同上ＶＣを与する。また上表′域准Ｕ〜Ｗの実験結果
より祭力口する元素の数として１檜に限らず複数極の元
素七砒刀口丁◇ことにエリ同僚の効果が得らｎることが
Ｖかる。It has the same effect on corrosion resistance as above, and provides the same VC as above on the cycle characteristics of the water storage tank. In addition, from the experimental results in the above table's area Jun-W, it can be seen that the number of elements involved in the ritual force is not limited to one, but multiple elements. .
（へ）発明の効果
ｚ 、 ｐｂ 、ｗ及びＢｉ力１６選ばｎた少なくとも
１種の元素、４５≦ｘ＋ｙ＋ｚ≦５．ｓ、ｓ 、 Ｏ＜
Ｚ＜２゜０）で表わさｎる水素吸蔵合金を含ひ不発８Ａ
電極によｎば、アルカリ電解液中にお（する耐蝕性が著
しく同上し且つ合金微粉化による極板容量低下も小さい
ことから、吸蔵水素のオリ用率が同上しサイクル特性に
優ｎた水素吸Ｒ１に極が得らｎる。(f) Effects of the invention z, pb, w and Bi force 16 At least one selected element, 45≦x+y+z≦5. s, s, O<
Unexploded 8A containing a hydrogen storage alloy represented by Z<2゜0)
In terms of electrodes, the corrosion resistance of the alkaline electrolyte is extremely high, and the decrease in electrode plate capacity due to pulverization of the alloy is small. A pole is obtained at absorption R1.
また轡に上記式中％ＭとしてＺｎ 、Ａｇｉ用いた時に
前記効果に加え放ｔｇ＊大なる７に：Ａ吸蔵電極が得ら
ｎされめて工業的価値大なるものである。Furthermore, when Zn and Agi are used as %M in the above formula, in addition to the above-mentioned effects, a large 7:A storage electrode is obtained, which is of great industrial value.
出臥三洋４８ｉ株式会社Dega Sanyo 48i Co., Ltd.
Claims (1)
Ｚｎ、Ｇａ、Ｉｎ、Ｇｅ、Ｓｂ、Ｔｌ、Ｐｂ、Ｗ、Ｂｉ
から選ばれた少なくとも１種の元素、４５≦ｘ＋ｙ＋ｚ
≦５．５、０＜Ｚ＜２．０）で表わされる水素吸蔵合金
を含んでなることを特徴とする水素吸蔵電極。(1) Formula LaNi_xCo_yM_z (where M is Ag,
Zn, Ga, In, Ge, Sb, Tl, Pb, W, Bi
At least one element selected from 45≦x+y+z
A hydrogen storage electrode comprising a hydrogen storage alloy represented by ≦5.5, 0<Z<2.0).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61102849A JPS62259344A (en) | 1986-05-02 | 1986-05-02 | Hydrogen absorbing electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61102849A JPS62259344A (en) | 1986-05-02 | 1986-05-02 | Hydrogen absorbing electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62259344A true JPS62259344A (en) | 1987-11-11 |
Family
ID=14338388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61102849A Pending JPS62259344A (en) | 1986-05-02 | 1986-05-02 | Hydrogen absorbing electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62259344A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63131467A (en) * | 1986-11-19 | 1988-06-03 | Sanyo Electric Co Ltd | Metal-hydrogen alkaline storage battery |
| EP0383991A2 (en) * | 1989-02-23 | 1990-08-29 | Matsushita Electric Industrial Co., Ltd. | Alkaline storage battery using hydrogen absorbing alloy |
| JPH0357157A (en) * | 1989-07-26 | 1991-03-12 | Furukawa Battery Co Ltd:The | Hydrogen storage electrode for alkaline storage battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60109183A (en) * | 1983-11-17 | 1985-06-14 | Matsushita Electric Ind Co Ltd | Sealed type nickel-hydrogen storage battery |
-
1986
- 1986-05-02 JP JP61102849A patent/JPS62259344A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60109183A (en) * | 1983-11-17 | 1985-06-14 | Matsushita Electric Ind Co Ltd | Sealed type nickel-hydrogen storage battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63131467A (en) * | 1986-11-19 | 1988-06-03 | Sanyo Electric Co Ltd | Metal-hydrogen alkaline storage battery |
| EP0383991A2 (en) * | 1989-02-23 | 1990-08-29 | Matsushita Electric Industrial Co., Ltd. | Alkaline storage battery using hydrogen absorbing alloy |
| JPH0357157A (en) * | 1989-07-26 | 1991-03-12 | Furukawa Battery Co Ltd:The | Hydrogen storage electrode for alkaline storage battery |
| JPH07105230B2 (en) * | 1989-07-26 | 1995-11-13 | 古河電池株式会社 | Hydrogen storage electrode for alkaline storage battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02277737A (en) | Electrode made of hydrogen storage alloy | |
| JPS62259344A (en) | Hydrogen absorbing electrode | |
| JPS62271349A (en) | Hydrogen occlusion electrode | |
| JPS62249358A (en) | Hydrogen storage electrode | |
| JPS62271348A (en) | Hydrogen occlusion electrode | |
| JP2680566B2 (en) | Hydrogen storage electrode | |
| JP2962814B2 (en) | Hydrogen storage alloy electrode | |
| JPS6220245A (en) | Enclosed type alkaline storage battery | |
| JP3587213B2 (en) | Negative electrode active material for air-Ga primary battery and air-Ga primary battery using the same | |
| JP3268015B2 (en) | Hydrogen storage alloy and hydrogen storage alloy electrode | |
| JPH0953137A (en) | Hydrogen storage alloy and hydrogen storage alloy electrode | |
| JP3276677B2 (en) | Hydrogen storage alloy electrode | |
| JPH0463240A (en) | Hydrogen storage alloy electrode and battery using it | |
| JPH0357158A (en) | Hydrogen storage electrode for alkaline storage battery | |
| JPH0357157A (en) | Hydrogen storage electrode for alkaline storage battery | |
| JPH04167365A (en) | Hydrogen storage electrode | |
| JPH08319529A (en) | Hydrogen storage alloy and hydrogen storage alloy electrode | |
| JP3082341B2 (en) | Hydrogen storage electrode | |
| JPH0815079B2 (en) | Hydrogen storage electrode | |
| JPH0953135A (en) | Hydrogen storage alloy and hydrogen storage alloy electrode | |
| JPS61288371A (en) | Hydrogen occlusion electrode | |
| JPH0582125A (en) | Hydrogen occluding alloy electrode | |
| JPH0569889B2 (en) | ||
| JPH0696762A (en) | Hydrogen storage alloy electrode and its manufacture | |
| JPH0584025B2 (en) |