JPH0433109B2 - - Google Patents
Info
- Publication number
- JPH0433109B2 JPH0433109B2 JP61274840A JP27484086A JPH0433109B2 JP H0433109 B2 JPH0433109 B2 JP H0433109B2 JP 61274840 A JP61274840 A JP 61274840A JP 27484086 A JP27484086 A JP 27484086A JP H0433109 B2 JPH0433109 B2 JP H0433109B2
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- substrate
- active material
- electrode
- cobalt
- 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
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 40
- 239000000758 substrate Substances 0.000 claims description 28
- 229910052759 nickel Inorganic materials 0.000 claims description 19
- 239000011149 active material Substances 0.000 claims description 18
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 16
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 10
- 150000001868 cobalt Chemical class 0.000 claims description 9
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 9
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 229910001882 dioxygen Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 150000002815 nickel Chemical class 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229940011182 cobalt acetate Drugs 0.000 description 1
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 1
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 1
- 229940044175 cobalt sulfate Drugs 0.000 description 1
- 229910000361 cobalt sulfate Inorganic materials 0.000 description 1
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 1
- MULYSYXKGICWJF-UHFFFAOYSA-L cobalt(2+);oxalate Chemical compound [Co+2].[O-]C(=O)C([O-])=O MULYSYXKGICWJF-UHFFFAOYSA-L 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000003313 weakening effect Effects 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
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/26—Processes of manufacture
- H01M4/28—Precipitating active material on the carrier
-
- 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
- H01M4/32—Nickel oxide or hydroxide 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
この発明はアルカリ蓄電池用水酸化ニツケル電
極（以下水酸化ニツケル電極と呼称する）の製法
に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a method for producing a nickel hydroxide electrode (hereinafter referred to as a nickel hydroxide electrode) for an alkaline storage battery.
(ロ) 従来の技術と問題点
水酸化ニツケル電極の製造方法としては、多孔
性焼結ニツケル基板を硝酸ニツケルなどの酸性ニ
ツケル塩含浸液に浸漬して、前記基板の孔中にニ
ツケル塩を含浸させた後、乾燥を十分に行なう事
によつて、次の工程のアルカリ処理による活物質
化の際に、基板の孔の活物質による目づまりを防
止して、活物質の充填量を増加させるという手段
がとられている。そしてこのニツケル塩含浸後の
乾燥は効率を上げるためには高温で行うのが望ま
しい。(b) Conventional techniques and problems A method for manufacturing a nickel hydroxide electrode involves immersing a porous sintered nickel substrate in an acidic nickel salt impregnating solution such as nickel nitrate to impregnate the nickel salt into the pores of the substrate. By thoroughly drying the substrate after drying, it is possible to prevent the pores of the substrate from being clogged with the active material and increase the amount of active material filled during the next step of converting it into an active material using alkali treatment. Measures are being taken. In order to increase efficiency, drying after impregnating with nickel salt is preferably carried out at a high temperature.
しかし硝酸ニツケルは、金属ニツケルおよび水
酸化ニツケルの存在下で、50℃付近から分解しは
じめ分解物質〔Ni2（NO3）2（OH）2・2H2O〕を生
成し、硝酸ガスを発生する。そしてこの硝酸ガス
は、基板を構成するニツケルを侵蝕して極板が脆
弱化し、電池性能を低下させるという問題があり
前記乾燥温度を上げて効率を上昇させるのがむづ
かしいという問題があつた。 However, in the presence of nickel metal and nickel hydroxide, nickel nitrate begins to decompose at around 50°C, producing decomposed substances [Ni 2 (NO 3 ) 2 (OH) 2.2H 2 O] and generating nitric acid gas. do. This nitric acid gas corrodes the nickel constituting the substrate, weakening the electrode plates and reducing battery performance, making it difficult to increase the efficiency by increasing the drying temperature.
この発明は、上記問題点を改善するためになさ
れたものであつて、ニツケル基板を硝酸ニツケル
などの酸性ニツケル塩の溶液に浸漬後、高温で乾
燥しても、硝酸ニツケルの分解物質への反応が抑
制され、ニツケル基板の侵蝕が防止され、強度が
大でしかも活物質充填量の多い水酸化ニツケル電
極をい得るのを目的とするものである。 This invention was made to improve the above-mentioned problem, and even if a nickel substrate is immersed in a solution of an acidic nickel salt such as nickel nitrate and then dried at a high temperature, the reaction to the decomposed substances of nickel nitrate does not occur. The purpose of this invention is to obtain a nickel hydroxide electrode which is suppressed, corrosion of the nickel substrate is prevented, and has high strength and a large amount of active material.
(ハ) 問題点を解決するための手段と作用
この発明の発明者らは鋭意研究の結果、ニツケ
ル基板に硝酸ニツケル水溶液を含浸させる前に、
予めニツケル基板を酸化コバルト層で被覆してお
くと、乾燥温度を上昇させても硝酸ニツケルの分
解が抑制されることを見出し、この発明に到達し
た。(c) Means and effects for solving the problems As a result of intensive research, the inventors of this invention found that before impregnating a nickel substrate with a nickel nitrate aqueous solution,
The inventors have discovered that if a nickel substrate is coated with a cobalt oxide layer in advance, the decomposition of nickel nitrate can be suppressed even if the drying temperature is increased, and the present invention has been achieved.
この発明は多孔性ニツケル基板を水溶性コバル
ト塩の水溶液に浸漬後、酸素ガス存在下で加熱処
理して前記基板を酸化コバルト層で被覆し、次い
で硝酸ニツケル水溶液に浸漬後60〜100℃で乾燥
しアルカリ処理して硝酸ニツケルを水酸化ニツケ
ルに変換させ洗浄乾燥して活物質化し、この活物
質化工程を繰返して所要量の水酸化ニツケルを前
記ニツケル基板に充填することからなるアルカリ
蓄電池用水酸化ニツケル電極の製法を提供するも
のである。 In this invention, a porous nickel substrate is immersed in an aqueous solution of water-soluble cobalt salt, then heat-treated in the presence of oxygen gas to coat the substrate with a cobalt oxide layer, and then immersed in an aqueous nickel nitrate solution and dried at 60 to 100°C. The hydroxide for alkaline storage batteries consists of converting nickel nitrate into nickel hydroxide through alkali treatment, washing and drying it to form an active material, and repeating this active material forming process to fill the required amount of nickel hydroxide into the nickel substrate. The present invention provides a method for manufacturing nickel electrodes.
この発明に用いられる水溶性コバルト塩として
は、酢酸コバルト、シユウ酸コバルトなどの有機
酸のコバルト塩や硝酸コバルト、硫酸コバルトな
どの無機酸のコバルト塩が挙げられる。 Examples of the water-soluble cobalt salt used in this invention include cobalt salts of organic acids such as cobalt acetate and cobalt oxalate, and cobalt salts of inorganic acids such as cobalt nitrate and cobalt sulfate.
これらの水溶性コバルト塩は、一般に水溶液に
してこれにニツケル基板を浸漬する。 These water-soluble cobalt salts are generally made into an aqueous solution and the nickel substrate is immersed in the solution.
次いでこのニツケル基板を乾燥し、酸素ガス存
在下で加熱してコバルト塩を酸化コバルトに変換
する。この場合、雰囲気は空気であつてもよく、
勿論酸素ガス濃度を上昇させた空気を用いてもよ
い。また加熱温度は、コバルト塩の種類によつて
若干変動するが、速やかにしかも充分に酸化コバ
ルトに変換するために150〜250℃の範囲が適切で
ある。この温度が250℃を超えると基板のニツケ
ルが酸化して導電性が低下して好ましくない。 The nickel substrate is then dried and heated in the presence of oxygen gas to convert the cobalt salt to cobalt oxide. In this case, the atmosphere may be air;
Of course, air with increased oxygen gas concentration may also be used. The heating temperature varies slightly depending on the type of cobalt salt, but a range of 150 to 250°C is appropriate for rapid and sufficient conversion to cobalt oxide. If this temperature exceeds 250°C, the nickel on the substrate will oxidize and the conductivity will decrease, which is not preferable.
なおコバルト塩水溶液にニツケル基板を浸漬
し、次いでこれをアルカリ処理し、乾燥した後に
酸化コバルトに変換してもよい。 Note that a nickel substrate may be immersed in a cobalt salt aqueous solution, then treated with an alkali, dried, and then converted into cobalt oxide.
次に上記基板を、通常用いられている硝酸ニツ
ケル水溶液に浸漬した後、60〜100℃で乾燥させ、
次いで通常行われているように水酸化ナトリウム
水溶液中に浸漬して活物質化し次いで洗浄乾燥さ
せる工程を繰返して、この発明による水酸化ニツ
ケル極板が得られる。上記の硝酸ニツケル水溶液
に浸漬後の乾燥温度は、60℃を超えない温度では
乾燥が不充分であり、活物質が基板の孔に充分入
らず活物質充填量が少なく電池容量が小さい。一
方乾燥温度が100℃を超えると硝酸ニツケルの分
解が起こり、分解生成物の硝酸によるニツケル基
板の侵蝕が起こる。 Next, the above substrate is immersed in a commonly used aqueous nickel nitrate solution, and then dried at 60 to 100°C.
Next, the nickel hydroxide electrode plate according to the present invention is obtained by repeating the usual steps of immersing it in an aqueous sodium hydroxide solution to form an active material, then washing and drying it. If the drying temperature after immersion in the above-mentioned nickel nitrate aqueous solution does not exceed 60°C, drying will be insufficient, and the active material will not enter the pores of the substrate sufficiently, resulting in a small amount of active material filling and a small battery capacity. On the other hand, if the drying temperature exceeds 100°C, nickel nitrate decomposes, and the nickel substrate is eroded by the decomposition product nitric acid.
次に実施例によつてこの発明を説明するが、こ
の発明を限定するものではない。 Next, the present invention will be explained with reference to Examples, but the present invention is not limited thereto.
(ニ) 実施例
酸化性雰囲気中で焼結して得られた多孔度80％
のニツケル焼結基板を、比重1.3の酢酸コバルト
水溶液中に浸漬した後、80℃で十分乾燥し、200
℃で20分間、空気中で加熱処理を行い、ニツケル
焼結基板の表面を酸化コバルト層で均一に被覆し
た。(d) Example Porosity 80% obtained by sintering in an oxidizing atmosphere
A nickel sintered substrate of
Heat treatment was performed in air at ℃ for 20 minutes to uniformly coat the surface of the nickel sintered substrate with a cobalt oxide layer.
次いでこの基板を80℃比重1.75の硝酸ニツケル
水溶液に30分間浸漬し、80℃で30分間乾燥させた
後、80℃の25％水酸化ナトリウム溶液中で活物質
化する一連の活物質充填操作を５回繰返して、こ
の発明による水酸化ニツケル極板ａを作製した。 Next, this substrate was immersed in a nickel nitrate aqueous solution with a specific gravity of 1.75 at 80°C for 30 minutes, dried at 80°C for 30 minutes, and then converted into an active material in a 25% sodium hydroxide solution at 80°C. The process was repeated five times to produce a nickel hydroxide electrode plate a according to the present invention.
また比較例として、酸化コバルトによる被覆処
理のないこと以外は上記ａと同じ方法で極板ｂを
作製し、また、硝酸ニツケル溶液に浸漬後の乾燥
を行わないこと以外は上記ａと同じ方法で極板ｃ
を作製した。 In addition, as a comparative example, electrode plate b was prepared using the same method as above a, except that it was not coated with cobalt oxide, and also using the same method as above a, except that it was not dried after being immersed in the nickel nitrate solution. Plate c
was created.
上記ａとｂの極板作製の過程で、活物質充填操
作を３回行つた時点で、両極板をＸ線回析に付し
て得られたＸ線回析図を第１図に示した。第１図
によればこのときの極板ａはｂに比べて分解生成
物〔×印Ni2（NO3）2（OH）2・2H2O〕の発生が少
ないことは明らかであり、硝酸ガスの発生が少な
いので基板の腐蝕が少なく基板の強度が高い。 Figure 1 shows the X-ray diffraction diagram obtained by subjecting the electrode plates to X-ray diffraction after performing the active material filling operation three times in the process of producing the electrode plates in a and b above. . According to Figure 1 , it is clear that the electrode plate a generates less decomposition products [marked with a cross, Ni 2 (NO 3 ) 2 (OH) 2.2H 2 O] than plate b. Since less gas is generated, there is less corrosion of the substrate and the strength of the substrate is high.
次に上記のように活物質充填操作を５回おこな
つた極板ａ，ｂおよびｃをそれぞれ、同一条件で
作製した、容量が十分に大きいカドミウム負極と
組合わせて公称1.2AHのニツケル・カドミウム電
池Ａ，ＢおよびＣを製作し、この電池の充放電サ
イクル特性を測定し第２図に示した。 Next, electrode plates a, b, and c, which had undergone the active material filling operation five times as described above, were combined with a cadmium negative electrode of a sufficiently large capacity prepared under the same conditions to form nickel cadmium with a nominal capacity of 1.2AH. Batteries A, B and C were manufactured, and the charge/discharge cycle characteristics of these batteries were measured and are shown in FIG.
本願発明による極板ａを用いた電池Ａは、酸化
コバルト被覆のなされていない電極ｂを用いた電
池Ｂに比べて、乾燥によつて発生した硝酸ガスに
よる基板の侵蝕が少ないので、電極強度に優れて
いることから、充放電による活物質の脱落などが
少ないため、電池Ｂの示す、充放電サイクルを繰
返した場合の容量低下が認められず、良好な充放
電サイクル特性を示している。 Battery A using electrode plate a according to the present invention has less corrosion of the substrate due to nitric acid gas generated by drying than battery B using electrode b which is not coated with cobalt oxide, so the electrode strength is improved. Since the active material is less likely to fall off due to charging and discharging, the capacity decrease shown in Battery B when repeated charging and discharging cycles is not observed, indicating good charging and discharging cycle characteristics.
また極板ｃは、活物質充填過程での硝酸ニツケ
ル溶液への浸漬後の乾燥が行われていないので、
活物質の孔中への充填が不十分で充填量が少な
く、電池容量の低下は認められなかつたが、容量
自体が小さいという欠点がある。 In addition, the electrode plate c was not dried after being immersed in the nickel nitrate solution during the active material filling process.
The active material was insufficiently filled into the pores, resulting in a small amount of filling, and although no decrease in battery capacity was observed, there was a drawback that the capacity itself was small.
(ホ) 発明の効果
この発明によれば、強度に優れ、しかも活物質
充填量の大きい水酸化ニツケル電極が得られ、こ
の電極を用いることによつて電池容量が大で、良
好な充放電サイクル特性を有する電池が得られ
る。(e) Effects of the Invention According to the present invention, a nickel hydroxide electrode with excellent strength and a large amount of active material filled can be obtained, and by using this electrode, a battery with a large capacity and a good charge/discharge cycle can be obtained. A battery having these characteristics can be obtained.
第１図はこの発明の一実施例と比較例の水酸化
ニツケル極板要部のＸ線回析図、第２図はこの発
明の一実施例および比較例の水酸化ニツケル極板
を用いて作製したニツケル・カドミウム電池の充
放電サイクル特性を示すグラフ図である。
Fig. 1 is an X-ray diffraction diagram of the main part of a nickel hydroxide electrode plate according to an embodiment of the present invention and a comparative example, and Fig. 2 is an X-ray diffraction diagram of a main part of a nickel hydroxide electrode plate according to an embodiment and a comparative example of the present invention. FIG. 2 is a graph diagram showing the charge/discharge cycle characteristics of the manufactured nickel-cadmium battery.
Claims (1)
溶液に浸漬後、酸素ガス存在下で加熱処理して前
記基板を酸化コバルト層で被覆し、次いで硝酸ニ
ツケル水溶液に浸漬後60〜100℃で乾燥しアルカ
リ処理して硝酸ニツケルを水酸化ニツケルに変換
させ洗浄乾燥して活物質化し、この活物質化工程
を繰返して所要量の水酸化ニツケルを前記ニツケ
ル基板に充填することからなるアルカリ蓄電池用
水酸化ニツケル電極の製法。1. After immersing a porous nickel substrate in an aqueous solution of a water-soluble cobalt salt, the substrate is coated with a cobalt oxide layer by heat treatment in the presence of oxygen gas, and then immersed in an aqueous nickel nitrate solution, dried at 60 to 100°C, and treated with an alkali. A nickel hydroxide electrode for an alkaline storage battery, which comprises processing to convert nickel nitrate into nickel hydroxide, washing and drying it to form an active material, and repeating this active material forming process to fill the required amount of nickel hydroxide into the nickel substrate. manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61274840A JPS63128555A (en) | 1986-11-18 | 1986-11-18 | Manufacture of nickel hydroxide electrode for alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61274840A JPS63128555A (en) | 1986-11-18 | 1986-11-18 | Manufacture of nickel hydroxide electrode for alkaline storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63128555A JPS63128555A (en) | 1988-06-01 |
| JPH0433109B2 true JPH0433109B2 (en) | 1992-06-02 |
Family
ID=17547317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61274840A Granted JPS63128555A (en) | 1986-11-18 | 1986-11-18 | Manufacture of nickel hydroxide electrode for alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63128555A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248510A (en) * | 1992-02-18 | 1993-09-28 | Hughes Aircraft Company | Cobalt oxide passivation of nickel battery electrode substrates |
| US6120937A (en) * | 1997-05-15 | 2000-09-19 | Matsushita Electric Industrial Co., Ltd. | Electrode for alkaline storage battery and method for manufacturing the same |
-
1986
- 1986-11-18 JP JP61274840A patent/JPS63128555A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63128555A (en) | 1988-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |