JPS64787B2 - - Google Patents
Info
- Publication number
- JPS64787B2 JPS64787B2 JP55051195A JP5119580A JPS64787B2 JP S64787 B2 JPS64787 B2 JP S64787B2 JP 55051195 A JP55051195 A JP 55051195A JP 5119580 A JP5119580 A JP 5119580A JP S64787 B2 JPS64787 B2 JP S64787B2
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- cobalt
- powder
- electrode
- active material
- 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
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 75
- 229910052759 nickel Inorganic materials 0.000 claims description 28
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 8
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 8
- 229910001429 cobalt ion Inorganic materials 0.000 claims description 5
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims description 5
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 3
- 229910000361 cobalt sulfate Inorganic materials 0.000 claims description 3
- 229940044175 cobalt sulfate Drugs 0.000 claims description 3
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 2
- UMYVESYOFCWRIW-UHFFFAOYSA-N cobalt;methanone Chemical compound O=C=[Co] UMYVESYOFCWRIW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 229940011182 cobalt acetate Drugs 0.000 claims 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 claims 1
- 239000011149 active material Substances 0.000 description 26
- 239000010941 cobalt Substances 0.000 description 8
- 229910017052 cobalt Inorganic materials 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M4/32—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
Description
【発明の詳細な説明】
二次電池においては、自動車起動用電源等を主
用途とする鉛酸電池が生産、販売において主であ
るが、近年、多種の家電用機器、通信用、雑貨
用、事務機用および防災用などの用途が拡大傾向
にあり、高信頼性、小型で高性能を特徴とするア
ルカリ蓄電池が注目されている。この種の用途に
おいて、比較的小出力の場合は、通常のルクラン
シエ電池が用いられることが多いが、それ以外の
大部分にはアルカリ蓄電池のうちでも円筒密閉形
ニツケル−カドミウム蓄電池が使用されている。Detailed Description of the Invention Among secondary batteries, lead-acid batteries, which are mainly used as power sources for starting automobiles, are mainly produced and sold. Alkaline storage batteries are attracting attention due to their high reliability, small size, and high performance, as their uses for office machines and disaster prevention are expanding. In this type of application, ordinary Lecrancier batteries are often used when the output is relatively low, but sealed cylindrical nickel-cadmium batteries are used among alkaline batteries for most other applications. .
この電池は、正極にニツケル極、負極にカドミ
ウム極を用いた電池であり、高信頼性、高出力密
度を有するが、比較的高価格である。その原因と
しては、とくにニツケル極において活物質とそれ
に関連する電極構成材が鉛電池などと比べて高価
格であるとともに、製法がやや複雑であることが
あげられる。また、各種の用途に用いられる上
で、さらに高性能および高容量が望まれているの
が現状である。 This battery uses a nickel electrode as the positive electrode and a cadmium electrode as the negative electrode, and has high reliability and high output density, but is relatively expensive. The reason for this is that the active material and related electrode constituent materials, especially in nickel electrodes, are more expensive than those in lead batteries, and the manufacturing method is somewhat complicated. Furthermore, the current situation is that even higher performance and higher capacity are desired for use in various applications.
従来、企業化されているニツケル極は、焼結ニ
ツケル基板に活物質塩を含浸し、ついで活物質に
転化する工程を約10回程度繰り返したり、活物質
塩中で活物質を電解により析出させるなど繁雑な
工程を採用している。他の企業化されている簡単
な製法の電極として、活物質粉末を微孔をする金
属製の袋に充填するポケツト式ニツケル極がある
が、この電極は、特性上焼結式電極に劣るととも
に渦巻状に加工することも本来不適である。 Traditionally, commercially available nickel electrodes involve impregnating a sintered nickel substrate with active material salt and then repeating the process of converting it into the active material about 10 times, or depositing the active material in the active material salt by electrolysis. It uses complicated processes such as Another easy-to-manufacture electrode that has been commercialized is the pocket-type nickel electrode, in which active material powder is filled into a metal bag with micropores, but this electrode has inferior characteristics to the sintered electrode. Processing into a spiral shape is also inherently inappropriate.
そこで、焼結式ニツケル極の低廉化と高容量化
をはかるため、スポンジ状ニツケル多孔体に活物
質を主とする粉末を直接充填する方法が提案され
ている。このスポンジ状ニツケルは、使用材料が
現在企業化されている焼結基板の1/3程度で、し
かも多孔度が焼結基板の約80％に対して約95％と
大きいので、活物質粉末を直接高密度に充てんで
きる特徴がある。 Therefore, in order to reduce the cost and increase the capacity of sintered nickel electrodes, a method has been proposed in which a sponge-like porous nickel material is directly filled with powder mainly containing an active material. This sponge-like nickel uses only one-third of the material used for sintered substrates currently commercially available, and its porosity is approximately 95%, compared to approximately 80% for sintered substrates. It has the characteristic that it can be directly filled with high density.
本発明は、電極の導電性支持体としてスポンジ
状金属多孔体を用いるケツケル電極の製造法に関
するもので、特に導電性支持体に充てんする活物
質粉末の製造法を改良するものである。 The present invention relates to a method for manufacturing a Koeckel electrode using a sponge-like porous metal material as a conductive support for the electrode, and particularly to improve a method for manufacturing an active material powder to fill the conductive support.
この種の電極に用いられる水酸化ニツケル活物
質の製造には、通常硫酸ニツケル水溶液もしくは
さらに炭素粉末を懸濁した溶液に水酸化ナトリウ
ム水溶液を加えて水酸化ニツケルを主とする活物
質粉末を生成させ、ついで熟成することによりそ
の粒子を大きくする方法を採用している。この理
由は、活物質の電極特性上および電極中の脱落強
度などを向上させるのに、活物質粒径が微細であ
ると好ましくなく、その粒径増大には、硫酸根と
ナトリウムイオンの存在が適しているからであ
る。しかし、この活物質を主とする粉末を電極に
用いても、その活物質利用率は、60〜70％が限度
である。そのため、この活物質粉末にさらにニツ
ケル粉末とコバルト粉末などを加える方法も提案
されているが、この場合の利用率は、コバルト添
加量約３重量％で約90％である。 To produce the nickel hydroxide active material used in this type of electrode, a sodium hydroxide aqueous solution is usually added to a nickel sulfate aqueous solution or a solution in which carbon powder is suspended to produce an active material powder mainly composed of nickel hydroxide. The method used is to increase the size of the particles by allowing the grains to ripen and then ripening. The reason for this is that in order to improve the electrode properties of the active material and the shedding strength in the electrode, it is undesirable for the active material particle size to be fine, and the presence of sulfate radicals and sodium ions is responsible for increasing the particle size. This is because it is suitable. However, even if a powder mainly composed of this active material is used for an electrode, the active material utilization rate is limited to 60 to 70%. Therefore, a method of adding nickel powder and cobalt powder to this active material powder has also been proposed, but the utilization rate in this case is about 90% when the amount of cobalt added is about 3% by weight.
本発明は、活物質の利用率をさらに向上すると
ともに導電性支持体に充てんすべき活物質合剤の
調整工程を簡略化することを目的とする。 An object of the present invention is to further improve the utilization rate of active materials and to simplify the process of preparing an active material mixture to be filled into a conductive support.
すなわち、本発明は、ニツケル粉末とコバルト
粉末もしくはコバルトイオンを含む硫酸ニツケル
溶液に水酸化ナトリウムを加えて水酸化ニツケル
を生成させ、こうして得られるニツケル粉末やコ
バルト粉末を含む水酸化ニツケルを活物質として
電極を構成することを特徴とするものである。 That is, the present invention adds sodium hydroxide to a nickel sulfate solution containing nickel powder and cobalt powder or cobalt ions to generate nickel hydroxide, and uses the thus obtained nickel powder or nickel hydroxide containing cobalt powder as an active material. It is characterized in that it constitutes an electrode.
本発明の方法により得られる水酸化ニツケル
は、ニツケル粉末およびコバルト粉末もしくはコ
バルトイオンより生成する水酸化コバルトと共析
状態で得られるので、これらの混合状態の均一性
がよく、ニツケル粉末共存下でのコバルト添加に
よる活物質利用率向上の効果が大きい。また、ニ
ツケル粉末やコバルトを混合する活物質合剤の調
合工程を省略することができる。また、さらに高
率放電を要望される場合は、炭素粉末などの導電
材の粉末を硫酸ニツケル溶液に加えておけばよ
い。 Since nickel hydroxide obtained by the method of the present invention is obtained in a eutectoid state with nickel powder and cobalt hydroxide produced from cobalt powder or cobalt ions, the uniformity of the mixing state of these is good, and the nickel hydroxide can be mixed in the presence of nickel powder. The addition of cobalt has a large effect on improving the active material utilization rate. Further, the step of preparing the active material mixture, which involves mixing nickel powder and cobalt, can be omitted. Furthermore, if a higher rate of discharge is desired, powder of a conductive material such as carbon powder may be added to the nickel sulfate solution.
なお、硫酸ニツケル溶液にコバルトイオンを加
えるには、コバルトの硫酸塩、硝酸塩または酢酸
塩を用いることができる。またニツケル粉末、コ
バルト粉末は、カーボニルニツケル、カーボニル
コバルトから得られるものが微粉末で好都合であ
る。 Note that in order to add cobalt ions to the nickel sulfate solution, cobalt sulfate, nitrate, or acetate can be used. Further, as the nickel powder and cobalt powder, those obtained from carbonyl nickel and carbonyl cobalt are preferably fine powders.
以下、本発明の実施例を説明する。 Examples of the present invention will be described below.
実施例 １
濃度約２モル／、温度60℃の硫酸ニツケル水
溶液１にカーボニルニツケルから得たニツケル
粉末約20ｇとコバルト粉末６ｇを懸濁させ、この
懸濁液に1Nの水酸化ナトリウム水溶液を加えて
水酸化ニツケルを生成させる。ついで約30時間放
置して粒子の成長を行わせた後、水洗、乾燥を繰
り返す。こうして約87重量％の水酸化ニツケルと
約10重量％のニツケル粉末および約３重量％のコ
バルト粉末からなる混合物が得られる。Example 1 Approximately 20 g of nickel powder obtained from carbonyl nickel and 6 g of cobalt powder were suspended in an aqueous solution of nickel sulfate at a concentration of approximately 2 mol/1 and a temperature of 60°C, and a 1N aqueous sodium hydroxide solution was added to this suspension. Produces nickel hydroxide. Then, after leaving it for about 30 hours to allow the particles to grow, it is washed with water and dried repeatedly. A mixture is thus obtained consisting of about 87% by weight of nickel hydroxide, about 10% by weight of nickel powder and about 3% by weight of cobalt powder.
この混合物に約0.5重量％のカルボキシメチル
セルロース水溶液を加えてペーストとし、これを
多孔度約95％、孔数20個／cm、厚さ約１mmのスポ
ンジ状ニツケル多孔体に押し込んで充てんし、つ
いで、フツ素樹脂懸濁液に浸せきした後乾燥し、
さらに加圧圧縮して厚さ約0.7mmのニツケル電極
とする。 Approximately 0.5% by weight of carboxymethyl cellulose aqueous solution is added to this mixture to form a paste, which is pressed into a sponge-like porous nickel material with a porosity of approximately 95%, 20 pores/cm, and a thickness of approximately 1 mm, and then, After soaking in fluororesin suspension and drying,
It is further compressed under pressure to form a nickel electrode with a thickness of approximately 0.7 mm.
実施例 ２
実施例１におけるコバルト粉末の代わりに、コ
バルト金属６ｇ相当の硫酸コバルトを用いた他
は、実施例１と同様にしてニツケル電極を得る。Example 2 A nickel electrode is obtained in the same manner as in Example 1, except that cobalt sulfate equivalent to 6 g of cobalt metal is used instead of the cobalt powder in Example 1.
次に、実施例１と同様にして、水酸化ニツケル
とニツケル粉末との比を重量比で87：10と一定に
し、コバルト粉末の割合を種々変化させた活物質
粉末混合物を生成させ、これを用いて実施例１と
同様にしてニツケル電極を製作した。 Next, in the same manner as in Example 1, an active material powder mixture was produced in which the ratio of nickel hydroxide and nickel powder was kept constant at 87:10 by weight, and the proportion of cobalt powder was varied. A nickel electrode was produced in the same manner as in Example 1.
これらのニツケル電極のコバルト添加量と活物
質利用率との関係を第１図にａで示す。ｂは硫酸
ニツケル水溶液に水酸化ナトリウム水溶液を加え
て生成させた水酸化ニツケルにニツケル粉末とコ
バルト粉末を混合し、これを実施例１と同様にペ
ーストとしてスポンジ状ニツケルに充てんして構
成した電極の特性を示す。またｃは焼結式ニツケ
ル電極で、活物質充てん後に硝酸コバルトを合浸
し、これを水酸化カリウム水溶液中で水酸化コバ
ルトに転化させた電極の特性を示す。 The relationship between the amount of cobalt added and the active material utilization rate of these nickel electrodes is shown by a in FIG. 1. b is an electrode constructed by mixing nickel powder and cobalt powder with nickel hydroxide produced by adding a sodium hydroxide aqueous solution to a nickel sulfate aqueous solution, and filling a sponge-like nickel with this as a paste in the same manner as in Example 1. Show characteristics. Further, c is a sintered nickel electrode, and shows the characteristics of an electrode in which cobalt nitrate is mixed in after being filled with an active material, and this is converted into cobalt hydroxide in an aqueous potassium hydroxide solution.
なお、活物質の利用率は、大きさ５×６cmのニ
ツケル電極をニツケルスクリーンの対極とともに
比重1.26の水酸化カリウム水溶液に浸漬し、0.1
cmＡの電流で16時間充電し、0.2cmＡで終止電圧
150ｍＶ vs.Hg／HgOまで放電して求めた容量
の理論容量に対する百分率で表した。 The utilization rate of the active material was determined by dipping a 5 x 6 cm nickel electrode together with a nickel screen counter electrode in a potassium hydroxide aqueous solution with a specific gravity of 1.26.
Charging with cmA current for 16 hours, final voltage at 0.2cmA
The capacity determined by discharging to 150 mV vs. Hg/HgO was expressed as a percentage of the theoretical capacity.
第１図から明らかなように、本発明によるニツ
ケル電極の特性は、予め生成された水酸化ニツケ
ルにニツケル粉末とコバルト粉末を加えた場合の
効果よりさらに向上している。これは、溶液状態
のニツケル塩にニツケル粉末とコバルト粉末を懸
濁させた混合液から水酸化ニツケルを生成させ、
粒子を成長させることにより、前者よりはるかに
均一にニツケルとコバルトが添加されるためと思
われる。 As is clear from FIG. 1, the properties of the nickel electrode according to the present invention are even better than those obtained by adding nickel powder and cobalt powder to previously produced nickel hydroxide. This involves producing nickel hydroxide from a mixture of nickel powder and cobalt powder suspended in nickel salt in solution.
This is probably because nickel and cobalt are added much more uniformly by growing the particles than in the former case.
第２図は前記の特性ａ，ｂ，ｃに示した各電極
のうち、コバルト添加量３重量％に相当するニツ
ケル電極を公知のカドミウム電極と組み合わせて
構成した密閉式NR−Ｃ型電池を、20℃において
200ｍＡの電流で17時間充電した後、2Aで放電し
たときの放電特性を示す。 Figure 2 shows a sealed NR-C type battery constructed by combining a nickel electrode with a cobalt content of 3% by weight with a known cadmium electrode among the electrodes shown in characteristics a, b, and c above. At 20℃
The discharge characteristics are shown when the battery is charged at a current of 200mA for 17 hours and then discharged at a current of 2A.
本発明の電極は密閉式電池に適用してもすぐれ
た特性を有することがわかる。しかも焼結式ニツ
ケル極を用いた場合と比較すると、放電容量に大
きく優れ、電圧においてはほぼ同等であつた。 It can be seen that the electrode of the present invention has excellent characteristics even when applied to a sealed battery. Furthermore, compared to the case using a sintered nickel electrode, the discharge capacity was significantly superior, and the voltage was almost the same.
以上のように、本発明によれば製法も簡単であ
り、活物質利用率が高く、高出力密度のアルカリ
電池用電極が得られる。 As described above, according to the present invention, an alkaline battery electrode with a simple manufacturing method, high active material utilization rate, and high output density can be obtained.
第１図は各種製法によるニツケル電極のコバル
ト添加量と活物質利用率との関係を示す図、第２
図はニツケル−カドミウム蓄電池の放電特性の比
較を示す。
Figure 1 is a diagram showing the relationship between the amount of cobalt added and the active material utilization rate of nickel electrodes made by various manufacturing methods.
The figure shows a comparison of the discharge characteristics of nickel-cadmium storage batteries.
Claims (1)
トイオンを含む硫酸ニツケル溶液に水酸化ナトリ
ウムを加えて水酸化ニツケルを主とする混合物を
得る工程と、前記混合物をスポンジ状ニツケル多
孔体からなる導電性支持体へ充てんする工程を有
することを特徴とするアルカリ電池用ニツケル電
極の製造法。 ２ ニツケル粉末がカーボニルニツケルから得た
ニツケル粉末である特許請求の範囲第１項記載の
アルカリ電池用ニツケル電極の製造法。 ３ コバルト粉末がカーボニルコバルトから得た
コバルト粉末である特許請求の範囲第１項記載の
アルカリ電池用ニツケル電極の製造法。 ４ コバルトイオンが硫酸コバルト、硝酸コバル
トおよび酢酸コバルトよりなる群から選ばれた塩
より与えられる特許請求の範囲第１項記載のアル
カリ電池用ニツケル電極の製造法。 ５ 前記硫酸ニツケル溶液が導電材粉末を混入し
ている特許請求の範囲第１項記載のアルカリ電池
用ニツケル電極の製造法。[Claims] 1. A step of adding sodium hydroxide to a nickel powder and cobalt powder or a nickel sulfate solution containing cobalt ions to obtain a mixture mainly composed of nickel hydroxide, and converting the mixture into a sponge-like nickel porous body. A method for producing a nickel electrode for an alkaline battery, comprising a step of filling a conductive support. 2. The method for producing a nickel electrode for an alkaline battery according to claim 1, wherein the nickel powder is a nickel powder obtained from carbonyl nickel. 3. The method for producing a nickel electrode for an alkaline battery according to claim 1, wherein the cobalt powder is a cobalt powder obtained from carbonyl cobalt. 4. The method for producing a nickel electrode for an alkaline battery according to claim 1, wherein the cobalt ions are provided from a salt selected from the group consisting of cobalt sulfate, cobalt nitrate, and cobalt acetate. 5. The method for manufacturing a nickel electrode for an alkaline battery according to claim 1, wherein the nickel sulfate solution contains a conductive material powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5119580A JPS56147367A (en) | 1980-04-17 | 1980-04-17 | Preparation of nickel electrode for alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5119580A JPS56147367A (en) | 1980-04-17 | 1980-04-17 | Preparation of nickel electrode for alkaline battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56147367A JPS56147367A (en) | 1981-11-16 |
| JPS64787B2 true JPS64787B2 (en) | 1989-01-09 |
Family
ID=12880091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5119580A Granted JPS56147367A (en) | 1980-04-17 | 1980-04-17 | Preparation of nickel electrode for alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56147367A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916269A (en) * | 1982-07-16 | 1984-01-27 | Japan Storage Battery Co Ltd | Manufacture of positive plate for alkaline battery |
| JPS5918572A (en) * | 1982-07-21 | 1984-01-30 | Japan Storage Battery Co Ltd | Manufacture of positive plate for alkaline battery |
| JPS61133563A (en) * | 1984-12-04 | 1986-06-20 | Matsushita Electric Ind Co Ltd | Nickel positive electrode for alkaline storage battery |
| US5053292A (en) * | 1989-09-18 | 1991-10-01 | Toshiba Battery Co., Ltd. | Nickel-metal hydride secondary cell |
| JPH10264125A (en) * | 1997-03-28 | 1998-10-06 | Ngk Insulators Ltd | Ceramic honeycomb structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS604149B2 (en) * | 1977-06-10 | 1985-02-01 | 電気化学工業株式会社 | Dry spray method |
-
1980
- 1980-04-17 JP JP5119580A patent/JPS56147367A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56147367A (en) | 1981-11-16 |
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