JPS5978457A - Manufacture of sintered substrate for alkaline battery - Google Patents
Manufacture of sintered substrate for alkaline batteryInfo
- Publication number
- JPS5978457A JPS5978457A JP57188699A JP18869982A JPS5978457A JP S5978457 A JPS5978457 A JP S5978457A JP 57188699 A JP57188699 A JP 57188699A JP 18869982 A JP18869982 A JP 18869982A JP S5978457 A JPS5978457 A JP S5978457A
- Authority
- JP
- Japan
- Prior art keywords
- sintered substrate
- nickel
- sintered
- sintering
- oxide layer
- 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
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
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/80—Porous plates, e.g. sintered carriers
-
- 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)
- Powder Metallurgy (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はアルカリ電池用焼結基板、特にニッケルカドミ
ウム蓄電池に用いるニッケル粉末焼結体の製造法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a sintered substrate for alkaline batteries, particularly a nickel powder sintered body for use in nickel-cadmium storage batteries.
従来アルカリ蓄電池用焼結基板はメチルセルル
ロースあるいはカルボキシメヂルセルロース等△
の枯拮剤溶液とカーボニルニッケル、鉄等の焼結用金属
粉末からなるスラリーを多孔性金属板に塗着した後水素
還元雰囲気中で焼結することにより製造されている。こ
うして得られた焼結箔板、特にニッケル焼結基板は、酸
性雰囲気中電極めて高い反応を示す。ニッケルカドミウ
ム蓄電池の電極を製造するには、一般に前記ニッケル焼
結体を陽極は硝酸ニッケル溶液に、陰極は硝酸カドミウ
ム溶液に浸漬し、電解還元して活物質を充填する方法が
採用されている。この方法によると硝酸ニッケルと硝酸
カドミウム溶液が酸性であることから、ニッケル焼結体
が浸食され脆弱化するという欠点があった。Conventional sintered substrates for alkaline storage batteries are made by coating a porous metal plate with a slurry consisting of a depleting agent solution such as methylcellulose or carboxymethylcellulose and a sintering metal powder such as carbonyl nickel or iron, and then reducing it with hydrogen. Manufactured by sintering in an atmosphere. The sintered foil plate thus obtained, especially the nickel sintered substrate, shows extremely high reaction to electricity in an acidic atmosphere. To manufacture electrodes for nickel-cadmium storage batteries, a method is generally adopted in which the nickel sintered body is immersed in a nickel nitrate solution for the anode and a cadmium nitrate solution for the cathode, and electrolytically reduced to fill the active material. This method has the disadvantage that the nickel sintered body is eroded and becomes brittle because the nickel nitrate and cadmium nitrate solutions are acidic.
本発明は上記の点に鑑み、ニッケル焼結体がこれらの酸
性溶液中で浸食されるのを防止することにある。In view of the above points, the present invention aims to prevent nickel sintered bodies from being eroded in these acidic solutions.
上記の目的を達成するために5本発明は加熱した焼結基
板を、酸素を含む混合ガス中を通過させることにより、
焼結体表面に耐酸性の酸化ニッケルの層を形成させるも
のである。In order to achieve the above-mentioned object, the present invention passes a heated sintered substrate through a mixed gas containing oxygen.
A layer of acid-resistant nickel oxide is formed on the surface of the sintered body.
次に本発明の一実施例を説明する。Next, one embodiment of the present invention will be described.
カーボニルニッケル粉末を通常の方法で焼結した焼結基
板(多孔度80%)を、焼結111後の高温時(約60
0〜700’C)に酸素と窒素の混合カス(体積比l;
1)中を約5分間で通過させ焼結体に耐酸性の酸化ニッ
ケル′層を形成さl\
せた。焼結基板内の温間は填結直後のため均一であり1
表面および内部の焼結体に形成される酸化ニッケルの層
も均一となった。この焼結基板を用いて公知の方法でニ
ッケル陽極板とカドミウム陰極板を作製しニラクルカド
ミウム蓄電池とした。A sintered substrate (80% porosity) made by sintering carbonyl nickel powder in a normal manner was
0 to 700'C) mixed scum of oxygen and nitrogen (volume ratio l;
1) The sintered body was passed through the sintered body for about 5 minutes to form an acid-resistant nickel oxide layer. The warm temperature inside the sintered substrate is uniform because it is immediately after filling.
The nickel oxide layer formed on the surface and inside the sintered body also became uniform. Using this sintered substrate, a nickel anode plate and a cadmium cathode plate were fabricated by a known method to obtain a Niracle cadmium storage battery.
この電池を1時間率で充電後同様に1時間率で放電し、
特性を調へた。その結果を図面に示す。After charging this battery at a 1-hour rate, the battery was similarly discharged at a 1-hour rate.
I investigated the characteristics. The results are shown in the drawing.
■は焼結体表面を酸化させたもので、2は焼結体表面を
酸化さ仕ないものである。焼結体表面を酸化させたもの
は、焼結体表面を酸化させないものに比べて放電容置が
太き(特性が優れていた。Sample (2) is one in which the surface of the sintered body is oxidized, and Sample (2) is one in which the surface of the sintered body is not oxidized. The sintered body whose surface was oxidized had a thicker discharge chamber (better characteristics) than the sintered body whose surface was not oxidized.
上述のように本発明によれは、酸性溶液の浸食によるニ
ッケル焼結体の脆弱化を防止するこ七ができ、電池特性
を向上せしめ得る等工業的価値甚だ大なるものである。As described above, the present invention has great industrial value, such as being able to prevent the weakening of nickel sintered bodies due to erosion by acidic solutions and improving battery characteristics.
図面は本発明により1)られたアルカリ電池を1時間率
で充電後同様にr n4)量率で放電した曲線図である
。
特d′「出晧1人The drawing is a curve diagram when an alkaline battery made in accordance with the present invention was charged at a rate of 1 hour and then discharged at a rate of rn4). Special d′ “Izuaki 1 person
Claims (1)
さピ゛ることにより焼結体に酸化層を形成せしめてなる
アルカリ電池用焼結基板の製造法。A method for manufacturing a sintered substrate for an alkaline battery, which forms an oxidized layer on a sintered body by passing a heated porous sintered metal through a mixed gas containing oxygen.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57188699A JPS5978457A (en) | 1982-10-27 | 1982-10-27 | Manufacture of sintered substrate for alkaline battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57188699A JPS5978457A (en) | 1982-10-27 | 1982-10-27 | Manufacture of sintered substrate for alkaline battery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5978457A true JPS5978457A (en) | 1984-05-07 |
Family
ID=16228266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57188699A Pending JPS5978457A (en) | 1982-10-27 | 1982-10-27 | Manufacture of sintered substrate for alkaline battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5978457A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6120937A (en) * | 1997-05-15 | 2000-09-19 | Matsushita Electric Industrial Co., Ltd. | Electrode for alkaline storage battery and method for manufacturing the same |
JP2023004578A (en) * | 2021-06-28 | 2023-01-17 | プライムアースEvエナジー株式会社 | Alkaline secondary battery and method for manufacturing alkaline secondary battery |
-
1982
- 1982-10-27 JP JP57188699A patent/JPS5978457A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6120937A (en) * | 1997-05-15 | 2000-09-19 | Matsushita Electric Industrial Co., Ltd. | Electrode for alkaline storage battery and method for manufacturing the same |
JP2023004578A (en) * | 2021-06-28 | 2023-01-17 | プライムアースEvエナジー株式会社 | Alkaline secondary battery and method for manufacturing alkaline secondary battery |
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