JPH0629018A - Hydrogen storage electrode - Google Patents
Hydrogen storage electrodeInfo
- Publication number
- JPH0629018A JPH0629018A JP4129987A JP12998792A JPH0629018A JP H0629018 A JPH0629018 A JP H0629018A JP 4129987 A JP4129987 A JP 4129987A JP 12998792 A JP12998792 A JP 12998792A JP H0629018 A JPH0629018 A JP H0629018A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen storage
- powder
- carbonyl nickel
- nickel powder
- storage alloy
- 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
- 239000001257 hydrogen Substances 0.000 title claims abstract description 31
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000006258 conductive agent Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 239000011230 binding agent Substances 0.000 abstract description 6
- 229910052759 nickel Inorganic materials 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 229920000131 polyvinylidene Polymers 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 7
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000009783 overcharge test Methods 0.000 description 3
- 229910001122 Mischmetal Inorganic materials 0.000 description 2
- 229910018007 MmNi Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000243 solution Substances 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルカリ蓄電池に用い
る水素吸蔵電極に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen storage electrode used in alkaline storage batteries.
【０００２】[0002]
【従来の技術】従来、アルカリ蓄電池の負極として用い
る水素吸蔵合金またはその水素化物から成る水素吸蔵電
極は、例えば、水素吸蔵合金粉を主体とし、これに導電
剤として、ニッケル、コバルトなどの金属パウダーを添
加し、更に結着剤としてカーボニルニッケルパウダーを
添加混合し、その混合物にカルボキシメチルセルロース
水溶液を添加してスラリー状としたものを、多孔金属基
板に塗布、乾燥後圧延し、次で焼成して製造される。2. Description of the Related Art Conventionally, a hydrogen storage electrode composed of a hydrogen storage alloy or a hydride thereof used as a negative electrode of an alkaline storage battery is mainly composed of, for example, a hydrogen storage alloy powder, and a metal powder such as nickel or cobalt as a conductive agent. Was further added and mixed with carbonyl nickel powder as a binder, and a mixture of carboxymethyl cellulose aqueous solution was added to the mixture to form a slurry, which was applied to a porous metal substrate, dried and rolled, and then fired. Manufactured.
【０００３】[0003]
【発明が解決しようとする課題】然し乍ら、上記従来の
水素吸蔵電極を負極としてアルカリ蓄電池に組み込み使
用した場合、また急放電容量が十分でなく、また過充電
時の内圧の上昇が大きい欠点を有する。However, when the above-mentioned conventional hydrogen storage electrode is incorporated into an alkaline storage battery as a negative electrode and used, the rapid discharge capacity is not sufficient and the internal pressure rises significantly during overcharge. .
【０００４】[0004]
【課題を解決するための手段】本発明は、かゝる従来の
水素吸蔵電極の不都合に鑑み、その急放電特性の向上並
びに過充電時の内圧の上昇を低く抑えることができる水
素吸蔵電極を提供するもので、水素吸蔵合金粉末に添加
される導電剤として、三次元方向に無数に分岐している
鎖状部分の平均直径が 0.8〜1.3 μｍの範囲にあるカー
ボニルニッケルパウダーを用いて構成して成る。In view of the disadvantages of such conventional hydrogen storage electrodes, the present invention provides a hydrogen storage electrode capable of improving its rapid discharge characteristics and suppressing an increase in internal pressure during overcharge. As a conductive agent to be added to the hydrogen storage alloy powder, carbonyl nickel powder having an average diameter of chain-like parts branched in the three-dimensional direction in the range of 0.8 to 1.3 μm is used. Consists of
【０００５】[0005]
【作用】本発明の作用は明らかでないが、上記の三次元
的な鎖状構造をもつカーボニルニッケルパウダーのう
ち、特にその平均直径が 0.8〜1.3 μｍの範囲におい
て、特に大きい急放電容量を示すと同時にガス吸収に対
する活性が特に高まり、内圧の上昇に対し大きい抑制作
用を有するものと考えられる。The function of the present invention is not clear, but among the carbonyl nickel powders having the above-mentioned three-dimensional chain structure, especially when the average diameter thereof is 0.8 to 1.3 μm, a particularly large rapid discharge capacity is exhibited. At the same time, it is considered that the activity for absorbing gas is particularly increased and that it has a great inhibitory effect on the increase in internal pressure.
【０００６】[0006]
【実施例】次に、本発明の実施例を詳述する。市販のMm
（ミッシュメタル）、Ni、Co、Alを一定の組成比になる
ように、１例として合金組成がMmNi3.55Co1.0 Al0.45と
なるように秤量して混合し、高周波溶解法により加熱溶
解し、冷却して負極用の水素吸蔵合金を作製した。この
合金塊を粉砕機などにより 150メッシュ以下の粉末と
し、この粉末 100重量部に対して導電剤として後記する
カーボニルニッケルパウダー15重量部、結着剤としてポ
リフッ化ビニリデン粉末３重量部を加えて混合した。こ
れに１％のカルボキシメチルセルロース水溶液を加えて
スラリー状とし、これを鉄にニッケルメッキを施した多
孔基板に塗布・乾燥の後圧延し、更に 200℃で２時間焼
成を行って水素吸蔵合金電極を得た。EXAMPLES Next, examples of the present invention will be described in detail. Commercially available Mm
(Misch metal), Ni, Co, Al are weighed and mixed so that the alloy composition is MmNi 3.55 Co 1.0 Al 0.45 , for example, so as to have a constant composition ratio, and heated and melted by a high frequency melting method, It cooled and produced the hydrogen storage alloy for negative electrodes. This alloy lump is made into a powder of 150 mesh or less by a pulverizer, etc., and to 100 parts by weight of this powder, 15 parts by weight of carbonyl nickel powder described below as a conductive agent and 3 parts by weight of polyvinylidene fluoride powder as a binder are added and mixed. did. A 1% aqueous solution of carboxymethyl cellulose was added to this to make a slurry, which was applied to a nickel-plated substrate on iron, dried, rolled, and then baked at 200 ° C for 2 hours to form a hydrogen storage alloy electrode. Obtained.
【０００７】上記の水素吸蔵合金電極の製造において、
導電剤として使用したカーボニルニッケルパウダーは、
三次元方向に無数に分岐している鎖状部分の平均直径が
0.6〜3.0 μｍの範囲で異なる市販のものを夫々使用
し、夫々の電極を作製した。尚、平均直径はフィッシャ
ー式装置で求めた値である。In the production of the above hydrogen storage alloy electrode,
Carbonyl nickel powder used as a conductive agent is
The average diameter of the chain-like parts that are innumerably branched in the three-dimensional direction is
Electrodes were produced by using different commercially available products in the range of 0.6 to 3.0 μm. The average diameter is a value obtained by a Fischer type device.
【０００８】これらの水素吸蔵電極を夫々負極とし、公
知のペースト式ニッケル極とをセパレータを介し組み合
わせて電池容器に組み込み、電解液として苛性カリ水溶
液を所定量注入し、常法により施蓋し、容量 1000mAhの
単３サイズのニッケル・水素電池を夫々作製し、これら
電池を急放電試験用の電池とした。また、同様に構成し
たこれら電池に内圧測定用のセンサーを取り付け、過充
電時の内圧測定用電池とした。Each of these hydrogen storage electrodes is used as a negative electrode, and a known paste type nickel electrode is combined with a separator to be incorporated into a battery container. AA size nickel-hydrogen batteries of 1000 mAh were produced, and these batteries were used for rapid discharge test. In addition, a sensor for measuring internal pressure was attached to each of the batteries having the same structure to obtain a battery for measuring internal pressure during overcharge.
【０００９】これらの電池について、 200mAでの充放電
を２回繰り返して容量を確認した後に急放電試験と過充
電試験とを行った。急放電試験は、20℃、 200mAで 7.5
時間充電した後、０℃で16時間保持し、その後その温度
で1500mA（ 1.5Ｃ）での放電を行い、電池電圧が 1.0Ｖ
になるまでの容量と、放電時の平均電圧を測定した。ま
た、過充電試験は、０℃で夫々の電池を４時間保持した
後、1000mAで 4.5時間充電し、 4.5時間目の内圧を測定
した。これらの試験結果は、下記表１に示す通りであっ
た。For these batteries, charge and discharge at 200 mA were repeated twice to confirm the capacity, and then a rapid discharge test and an overcharge test were conducted. Rapid discharge test is 7.5 at 20 ℃, 200mA
After charging for 1 hour, hold at 0 ℃ for 16 hours, and then discharge at 1500mA (1.5C) at that temperature, and the battery voltage becomes 1.0V.
And the average voltage during discharge were measured. In the overcharge test, each battery was held at 0 ° C. for 4 hours, then charged at 1000 mA for 4.5 hours, and the internal pressure at 4.5 hours was measured. The test results are shown in Table 1 below.
【００１０】[0010]
【表１】[Table 1]
【００１１】表１から明らかなように、鎖状カーボニル
ニッケルパウダーのうち、その平均直径が 0.8〜1.3 μ
ｍの範囲において、特に急放電容量が大きく、且つガス
内圧の抑制効果が大きいことが分る。尚、鎖状部分の平
均直径が 0.8〜1.3 μｍの範囲を有するカーボニルニッ
ケルパウダーの添加量は、水素吸蔵合金粉末 100重量部
に対し約３〜30重量部の範囲において特に優れた上記の
効果を有する。尚、結着剤については、上記の実施例で
はポリフッ化ビニリデンを用いたが、ポリエチレン、ポ
リテトラフルオロエチレンを用いても良い。As is clear from Table 1, among the chain carbonyl nickel powders, the average diameter is 0.8 to 1.3 μm.
It can be seen that particularly in the range of m, the rapid discharge capacity is large and the effect of suppressing the gas internal pressure is large. The carbonyl nickel powder having an average diameter of the chain portion in the range of 0.8 to 1.3 μm is added in an amount of about 3 to 30 parts by weight with respect to 100 parts by weight of the hydrogen storage alloy powder. Have. As the binder, polyvinylidene fluoride was used in the above examples, but polyethylene or polytetrafluoroethylene may be used.
【００１２】更に比較のため、導電剤として従来の平均
粒径３μｍのニッケルパウダーを水素吸蔵合金粉末 100
重量部に対し15重量部添加し、前記と同様にして水素吸
蔵電極を作製し、これを用いて前記と同様にして容量 1
000mAhの単３サイズニッケル・水素電池を作製し、これ
について、急放電特性試験と過充電試験を行った。その
結果は、急放電容量300mAh、放電平均電圧 1.045Ｖ、過
充電内圧15Kgf/cm2 であった。Further, for comparison, a conventional nickel powder having an average particle diameter of 3 μm was used as a conductive agent for hydrogen storage alloy powder.
By adding 15 parts by weight to parts by weight, a hydrogen storage electrode was produced in the same manner as described above, and using this, the capacity 1
A AA size nickel-hydrogen battery of 000 mAh was produced, and a rapid discharge characteristic test and an overcharge test were performed on this. As a result, the rapid discharge capacity was 300 mAh, the discharge average voltage was 1.045 V, and the overcharge internal pressure was 15 Kgf / cm 2 .
【００１３】[0013]
【発明の効果】このように本発明によるときは、水素吸
蔵合金粉末に添加される導電剤として、鎖状部分の平均
直径が 0.8〜1.3 μｍの範囲の鎖状カーボニルニッケル
パウダーを用いて水素吸蔵電極を構成したので、急放電
特性及び内圧上昇抑制効果の優れたアルカリ蓄電池をも
たらす効果を有する。As described above, according to the present invention, a chain carbonyl nickel powder having a chain portion having an average diameter in the range of 0.8 to 1.3 μm is used as the conductive agent added to the hydrogen storage alloy powder. Since the electrode is configured, it has an effect of providing an alkaline storage battery having excellent rapid discharge characteristics and an effect of suppressing an increase in internal pressure.
【表１】 [Table 1]
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年６月３日[Submission date] June 3, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００２[Name of item to be corrected] 0002
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００２】[0002]
【従来の技術】従来、アルカリ蓄電池の負極として用い
る水素吸蔵合金またはその水素化物から成る水素吸蔵電
極は、例えば、水素吸蔵合金粉を主体とし、これに導電
剤として、ニッケル、コバルトなどの金属パウダーを添
加し、更に結着剤としてポリフッ化ビニリデンを添加混
合し、その混合物にカルボキシメチルセルロース水溶液
を添加してスラリー状としたものを、多孔金属基板に塗
布、乾燥後圧延し、次で焼成して製造される。2. Description of the Related Art Conventionally, a hydrogen storage electrode composed of a hydrogen storage alloy or a hydride thereof used as a negative electrode of an alkaline storage battery is mainly composed of, for example, a hydrogen storage alloy powder and a metal powder such as nickel or cobalt as a conductive agent. Was added, and polyvinylidene fluoride was further added and mixed as a binder, and a slurry was prepared by adding an aqueous carboxymethylcellulose solution to the mixture, applied to a porous metal substrate, dried, rolled, and then fired. Manufactured.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Name of item to be corrected] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００３】[0003]
【発明が解決しようとする課題】然し乍ら、上記従来の
水素吸蔵電極を負極としてアルカリ蓄電池に組み込み使
用した場合、急放電容量が十分でなく、また過充電時の
内圧の上昇が大きい欠点を有する。However, when the above-mentioned conventional hydrogen storage electrode is incorporated in an alkaline storage battery as a negative electrode and used , the rapid discharge capacity is not sufficient and the internal pressure rises significantly during overcharge.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００６[Correction target item name] 0006
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００６】[0006]
【実施例】次に、本発明の実施例を詳述する。市販のＭ
ｍ（ミッシュメタル）、Ｎｉ、Ｃｏ、Ａｌを一定の組成
比になるように、１例として合金組成がＭｍＮｉ
３．５５Ｃｏ１．０Ａｌ０．４５となるように秤量して
混合し、高周波溶解法により加熱溶解し、冷却して負極
用の水素吸蔵合金を作製した。この合金塊を粉砕機など
により１５０メッシュ以下の粉末とし、この粉末１００
重量部に対して導電剤として後記するカーボニルニッケ
ルパウダー１５重量部、結着剤としてポリフッ化ビニリ
デン粉末３重量部を加えて混合した。これに１％濃度の
カルボキシメチルセルロース水溶液を加えてスラリー状
とし、これを鉄にニッケルメッキを施した多孔基板に塗
布・乾燥の後圧延し、更に２００℃で２時間焼成を行っ
て水素吸蔵合金電極を得た。EXAMPLES Next, examples of the present invention will be described in detail. Commercially available M
As an example, the alloy composition is MmNi so that m (Misch metal), Ni, Co, and Al have a constant composition ratio.
Weighed and mixed so as to be 3.55 Co 1.0 Al 0.45 , heated and melted by a high frequency melting method, and cooled to prepare a hydrogen storage alloy for a negative electrode. This alloy lump is made into a powder of 150 mesh or less by a pulverizer or the like,
15 parts by weight of carbonyl nickel powder described below as a conductive agent and 3 parts by weight of polyvinylidene fluoride powder as a binder were added and mixed with respect to parts by weight. A 1% concentration of carboxymethyl cellulose aqueous solution was added to this to make a slurry, which was applied to a nickel-plated porous substrate of iron, dried and rolled, and then baked at 200 ° C. for 2 hours to form a hydrogen storage alloy electrode. Got
Claims (1)
して、三次元方向に無数に分岐している鎖状部分の平均
直径が 0.8〜1.3 μｍの範囲にあるカーボニルニッケル
パウダーを用いて構成して成る水素吸蔵電極。1. As a conductive agent to be added to the hydrogen storage alloy powder, carbonyl nickel powder having an average diameter of chain-like parts branched innumerably in the three-dimensional direction in the range of 0.8 to 1.3 μm is used. Hydrogen storage electrode composed of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4129987A JP2561200B2 (en) | 1992-04-23 | 1992-04-23 | Hydrogen storage electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4129987A JP2561200B2 (en) | 1992-04-23 | 1992-04-23 | Hydrogen storage electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0629018A true JPH0629018A (en) | 1994-02-04 |
| JP2561200B2 JP2561200B2 (en) | 1996-12-04 |
Family
ID=15023355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4129987A Expired - Lifetime JP2561200B2 (en) | 1992-04-23 | 1992-04-23 | Hydrogen storage electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2561200B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0641032A1 (en) * | 1993-08-25 | 1995-03-01 | Furukawa Denchi Kabushiki Kaisha | Hydrogen-occlusion-alloy electrode |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0212765A (en) * | 1988-06-29 | 1990-01-17 | Matsushita Electric Ind Co Ltd | Method for manufacturing hydrogen storage electrode |
| JPH02234355A (en) * | 1989-03-08 | 1990-09-17 | Japan Storage Battery Co Ltd | Manufacture of hydrogen absorbing electrode |
| JPH02253558A (en) * | 1989-03-27 | 1990-10-12 | Japan Storage Battery Co Ltd | Manufacture of hydrogen storage electrode |
| JPH03133061A (en) * | 1989-10-16 | 1991-06-06 | Furukawa Battery Co Ltd:The | Hydrogen storage electrode and manufacture thereof |
| JPH03179664A (en) * | 1989-07-28 | 1991-08-05 | Furukawa Battery Co Ltd:The | Hydrogen storage electrode for alkaline storage battery |
| JPH04301363A (en) * | 1991-03-28 | 1992-10-23 | Furukawa Battery Co Ltd:The | Hydrogen storage electrode and manufacture thereof |
-
1992
- 1992-04-23 JP JP4129987A patent/JP2561200B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0212765A (en) * | 1988-06-29 | 1990-01-17 | Matsushita Electric Ind Co Ltd | Method for manufacturing hydrogen storage electrode |
| JPH02234355A (en) * | 1989-03-08 | 1990-09-17 | Japan Storage Battery Co Ltd | Manufacture of hydrogen absorbing electrode |
| JPH02253558A (en) * | 1989-03-27 | 1990-10-12 | Japan Storage Battery Co Ltd | Manufacture of hydrogen storage electrode |
| JPH03179664A (en) * | 1989-07-28 | 1991-08-05 | Furukawa Battery Co Ltd:The | Hydrogen storage electrode for alkaline storage battery |
| JPH03133061A (en) * | 1989-10-16 | 1991-06-06 | Furukawa Battery Co Ltd:The | Hydrogen storage electrode and manufacture thereof |
| JPH04301363A (en) * | 1991-03-28 | 1992-10-23 | Furukawa Battery Co Ltd:The | Hydrogen storage electrode and manufacture thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0641032A1 (en) * | 1993-08-25 | 1995-03-01 | Furukawa Denchi Kabushiki Kaisha | Hydrogen-occlusion-alloy electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2561200B2 (en) | 1996-12-04 |
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