JPS61239564A - Manufacture of positive electrode of alkaline storage battery - Google Patents
Manufacture of positive electrode of alkaline storage batteryInfo
- Publication number
- JPS61239564A JPS61239564A JP60079547A JP7954785A JPS61239564A JP S61239564 A JPS61239564 A JP S61239564A JP 60079547 A JP60079547 A JP 60079547A JP 7954785 A JP7954785 A JP 7954785A JP S61239564 A JPS61239564 A JP S61239564A
- Authority
- JP
- Japan
- Prior art keywords
- nickel hydroxide
- active material
- nickel
- dispersion medium
- react
- 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
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】
（イ）産業上の利用分野
本発明はアルカリ蓄電池用のニッケル陽極の製造方法に
関し、特に水酸化ニッケル陽極活物質の製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for producing a nickel anode for an alkaline storage battery, and more particularly to a method for producing a nickel hydroxide anode active material.
（ロ）従来の技術
水酸化ニッケルを活物質として用いるアルカリ蓄電池用
ニッケル陽極（以下陽極と称する）は。(b) Prior Art A nickel anode (hereinafter referred to as an anode) for an alkaline storage battery uses nickel hydroxide as an active material.
主に焼結式が使われていた。これはその高率放電性能、
サイクル寿命、活物質利用率が優れているためであるが
、一方コストが高い、製造所要時間が長いなどの簡題点
がある。近年、活物質粉末を □導電材、バイ
ンダー及び水と混合してなるペース □トを集
電板に塗着乾燥した陽極、及びスポンジ状あるいはフェ
ルト状の金属多孔体に粉末状活物質 ：、ｔえ
。え□５．あわ。エヶ、わ。□イ、ヨ ］して作製
する非焼結式陽極に対する関心が高まつ ′て
いる。The sintering method was mainly used. This is due to its high rate discharge performance,
This is because the cycle life and active material utilization rate are excellent, but on the other hand, there are shortcomings such as high cost and long manufacturing time. In recent years, a paste made by mixing active material powder with a conductive material, a binder, and water has been applied to an anode that is coated on a current collector plate and dried, and a powdered active material is applied to a sponge-like or felt-like porous metal body. picture. E□5. Bubbles. Ega, wow. There is growing interest in non-sintered anodes produced by
、、ゆや、え□よおい□、いオアあ、２、 ［酸化ニ
ッケルの特性の良否が極板性能を決′定づけ
゛る大きな要因となるが、この活物質の基本的製造
ｉ方法は、特公昭４４−２８４１５号公報、特公
昭 □４８−２３８５号公報及び特公昭５２−
２０９４ ’号。報よ示ヶゎ、ようい、硝つ
＝ッヶヤや硫つ５Ｉｔ ケｔＬｔ’ｌ ５（Ｄ−” ：
／ ケ＃ｊｊｉ、７ｇ１ａ’ｔＬｋ７Ｆ、Ｍｆｅｆ”
） ’Ｊ ウ’ムや水酸化カリクムなどの苛性アルカリ
水溶液に 。,, Yuya, eh□yooi□, oh, oh, 2, [The quality of the properties of nickel oxide determines the performance of the electrode plate.
A major factor in this is the basic manufacturing of this active material.
The i method is described in Japanese Patent Publication No. 44-28415, Japanese Patent Publication No. 48-2385, and Japanese Patent Publication No. 52-
No. 2094'. 5 (D-")
/ #jji, 7g1a'tLk7F, Mfef”
) For caustic alkaline aqueous solutions such as 'J'um' and potassium hydroxide.
作用させて沈澱物として得るもの（中和法）で、
：この後脱液、水洗、乾燥、粗粉砕、水洗、乾燥
。It is obtained as a precipitate by reacting (neutralization method),
: After this, deliquify, wash with water, dry, coarsely crush, wash with water, and dry.
粉砕などの工程を経て完成活物質となる。この活
゛□物質の製造方法はニッケル塩と苛性アルカリと
を作用させて得られる沈澱物がゲル状であり、また濾過
後直ちに水洗すると再びゲル状と表るため瀘゛過・脱液
に要時間を要する。甘だ、上記活物質は利用率が十分に
高くないという欠点がある。It becomes a finished active material through processes such as pulverization. This life
゛□The method for producing the substance is that the precipitate obtained by reacting nickel salt and caustic alkali is gel-like, and if washed with water immediately after filtration, it becomes gel-like again, so it takes time to filter and remove liquid. It takes. Unfortunately, the above active materials have the disadvantage that the utilization rate is not high enough.
これに対し、特開昭５３−４４８４４号公報。In contrast, Japanese Patent Application Laid-Open No. 53-44844.
特開昭５６−１３４４７１号公報及び特開昭５７−５１
１′ｚＪ１号公報に於いて新しい製造方法が提案されて
いるが、特開昭５３−４４８４４号公報では活物質とし
てのＮ１ＱＸの形成にンいてニッケル塩、酸化剤、苛性
アルカリを用いており、上述した水酸化ニッケルの製造
方法と同様の問題がある。また特開昭５６−１３４４７
１号公報及び特開昭５７−５１１３１号公報は何れも出
来上がった活物質の利用率の向上が計れないという問題
がある。JP-A-56-134471 and JP-A-57-51
1'zJ1 proposes a new manufacturing method, but JP-A-53-44844 uses nickel salt, oxidizing agent, and caustic alkali in forming N1QX as an active material. This method has the same problems as the method for producing nickel hydroxide described above. Also, JP-A-56-13447
No. 1 and Japanese Unexamined Patent Publication No. 57-51131 both have the problem that the utilization rate of the finished active material cannot be improved.
（ハ）発明力狸了決しようとする問題点本発明は製造所
要時間を短縮すると共に、？！！極活物質としての利用
率の高い水酸化ニッケルの製造方法を提供しようとする
ものである。(c) Problems to be solved by inventive power Does the present invention not only shorten the manufacturing time? ! ! The present invention aims to provide a method for producing nickel hydroxide that has a high utilization rate as a polar active material.
に）問題点を解決するための手段 本発明のアルカリ蓄電池用陽極の製造方法は。) measures to resolve the problem; A method for manufacturing an anode for an alkaline storage battery according to the present invention.
ニッ°ケ房塩と苛性アルカリを、これら及びこれらの反
応生成物である水酸化ニッケルを溶解しない有機分散媒
中に於いて懸濁状態で反応させて水酸化ニッケルを得、
該水酸化ニッケルを陽極活物質として使用するものであ
る。Nickel hydroxide is obtained by reacting nickel salt and caustic alkali in a suspended state in an organic dispersion medium that does not dissolve them or their reaction product nickel hydroxide;
The nickel hydroxide is used as an anode active material.
（ホ）作 用
ニッケル塩及び苛性アルカリを、これらを溶解しない有
機分散媒中に加え、懸濁状態で反応させると反応生成物
である水酸化ニッケル［Ｎｉ（ＯＨ）２〕粒子のゲル状
化が抑えられ、該水酸化ニッケルは粒状性が保たれたま
ま反応が進行する。(e) Effect When nickel salt and caustic alkali are added to an organic dispersion medium that does not dissolve them and reacted in a suspended state, the reaction product, nickel hydroxide [Ni(OH)2] particles, becomes gelatinous. is suppressed, and the reaction proceeds while the nickel hydroxide maintains its granularity.
（へ）実施例
有機分散媒としてフッ素系有機溶媒（ダイキン
“（株）製、′ダイフロンｓ−２“）を用い、該
分散媒１１に対して粉砕した苛性ソーダ４ｍ０１ を
加えて十分に攪拌を行ないながら、該分散媒に粉砕した
硝酸ニッケル１ｍｏ、ｇ を加えて反応させ水酸化ニッ
ケルを生成させる。次いでろ紙分用いて吸引濾過し、更
に水を加えて水洗し水洗水を吸引濾過して残留する苛性
ソーダ及び未反応の硝酸ニッケルを洗い流した後、乾燥
、粗粉砕、水洗１本乾燥、粉砕を行ない、２００メツシ
ユ箭を通して完成活物質とする。(f) Example Fluorinated organic solvent (Daikin
Using a "Daiflon S-2" manufactured by Co., Ltd., 4 m01 of pulverized caustic soda was added to the dispersion medium 11, and while stirring thoroughly, 1 mo, g of pulverized nickel nitrate was added to the dispersion medium. and react to produce nickel hydroxide. Next, it is suction filtered using filter paper, water is added and washed, the washing water is suction filtered, residual caustic soda and unreacted nickel nitrate are washed away, and then drying, coarse pulverization, washing with water and drying and pulverization are performed. , 200 meshes to obtain a finished active material.
また比較とし、て、溶繰に水を用い攪拌している苛性ソ
ーダ４ｒｎｏｌ／、ｌ：溶液１１に、硝酸ニッケルを通
して従来法による活物質を得た。For comparison, an active material was obtained by a conventional method by passing nickel nitrate into a solution 11 of 4 rnol/l of caustic soda, which was stirred using water.
尚１本発明法によって生成させた水酸化ニッケルは粒状
であり、水洗時などにも割れるような粉砕し易いもので
あり、また、前記吸引濾過、水洗及び水洗水の吸引濾過
に要した時間は約２０分と。1. The nickel hydroxide produced by the method of the present invention is in the form of granules and is easily crushed, breaking even when washed with water, and the time required for the suction filtration, washing, and suction filtration of the washing water is About 20 minutes.
従来法が約４時開票するのに対し、非電に短縮すること
ができた。While the conventional method required voting to be counted at approximately 4 o'clock, this time could be shortened to non-electronic methods.
前記本発明法によって作製した活物質粉末の顕微鏡写真
（Ｘ２５００）を第１図に、脣た。前記従来法によって
作製した活物質粉末の顕微鏡写真（Ｘ２５００）を第２
図に示すと共に、これら活物質粉末を発泡ニッケルに充
填して陽極７作製し。A microscopic photograph (X2500) of the active material powder produced by the method of the present invention is shown in FIG. A second micrograph (X2500) of the active material powder produced by the conventional method
As shown in the figure, an anode 7 was prepared by filling foamed nickel with these active material powders.
該陽極を充放電して測定した活物質の利用率を第３図に
示す。第３図中、Ａは本発明法によって作製した活物質
の利用率を、Ｂは従来法によ・つて作製した活物質の１
用率を夫々示しており、活物質の利用率は次式により算
出した。FIG. 3 shows the utilization rate of the active material measured by charging and discharging the anode. In Figure 3, A indicates the utilization rate of the active material produced by the method of the present invention, and B indicates the utilization rate of the active material produced by the conventional method.
The utilization rate of the active material is calculated using the following formula.
第３図から明らかなように本発明法によって作製した活
物質の利用率は従来法によって作製した活物質の利用率
より高い。これは第１図及び第２図に示したように本発
明法で作製した活物質の方が１表面に凹凸があり反応面
積が大きくなったためと考えられる。As is clear from FIG. 3, the utilization rate of the active material produced by the method of the present invention is higher than that of the active material produced by the conventional method. This is thought to be because, as shown in FIGS. 1 and 2, the active material produced by the method of the present invention has irregularities on one surface, resulting in a larger reaction area.
尚１本発明に於いて用いる有機分散媒としては実施例に
示したものの他、ベンゼンやノルマルヘキサンなどが使
用可能である。Note that as the organic dispersion medium used in the present invention, benzene, n-hexane, etc. can be used in addition to those shown in the examples.
（ト）発明の効果 本発明のアルカリ蓄電池用陽極の製造方法は。(g) Effects of the invention A method for manufacturing an anode for an alkaline storage battery according to the present invention.
ニッケル塩及び苛性アルカリを、これらを溶解しない有
機分散媒中に於いて懸濁状態で反応させて水酸化ニッケ
ルを生成させ、該水酸化ニッケノνを陽極活物質として
使用するものであり、前記反応で生成する水酸化ニッケ
ルは、ゲル状になることが防止されると共に、粉砕し易
いものであるため。Nickel hydroxide is produced by reacting a nickel salt and a caustic alkali in a suspended state in an organic dispersion medium that does not dissolve them, and the nickel hydroxide is used as an anode active material, and the above reaction The nickel hydroxide produced in this process is prevented from becoming gel-like and is easily crushed.
製造が容易であり、また、得られた活物質としての水酸
化ニッケルは表面積が大きく高利用率であるので工業的
利用価値大なるものである。It is easy to manufacture, and the obtained active material nickel hydroxide has a large surface area and a high utilization rate, so it has great industrial utility value.
第１図は本発明法により作製した水酸化ニッケルの粒子
構造を示す写真、第２図は従来法罠より作製した水酸化
ニッケルの粒子構造を示す写真。
第３図は本発明法及び従来法で作製した活物質の利用率
を示す図面である。FIG. 1 is a photograph showing the particle structure of nickel hydroxide produced by the method of the present invention, and FIG. 2 is a photograph showing the particle structure of nickel hydroxide produced by the conventional method. FIG. 3 is a drawing showing the utilization rates of active materials produced by the method of the present invention and the conventional method.
Claims (1)
水酸化ニッケルを活物質として使用するアルカリ蓄電池
用陽極の製造方法であつて、前記水酸化ニッケルの生成
を、有機分散媒中に、前記ニッケル塩及び苛性アルカリ
を加え懸濁状態で反応させて行なうことを特徴とするア
ルカリ蓄電池用陽極の製造方法。(1) A method for producing an anode for an alkaline storage battery using nickel hydroxide produced by reacting a nickel salt and a caustic alkali as an active material, wherein the production of the nickel hydroxide is mixed with the nickel hydroxide in an organic dispersion medium. A method for producing an anode for an alkaline storage battery, which comprises adding salt and a caustic alkali and reacting in a suspended state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60079547A JPH069137B2 (en) | 1985-04-15 | 1985-04-15 | Method for manufacturing anode for alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60079547A JPH069137B2 (en) | 1985-04-15 | 1985-04-15 | Method for manufacturing anode for alkaline storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61239564A true JPS61239564A (en) | 1986-10-24 |
| JPH069137B2 JPH069137B2 (en) | 1994-02-02 |
Family
ID=13693023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60079547A Expired - Lifetime JPH069137B2 (en) | 1985-04-15 | 1985-04-15 | Method for manufacturing anode for alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069137B2 (en) |
-
1985
- 1985-04-15 JP JP60079547A patent/JPH069137B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH069137B2 (en) | 1994-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |