JPS5978457A - Manufacture of sintered substrate for alkaline battery - Google Patents

Manufacture of sintered substrate for alkaline battery

Info

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
Application number
JP57188699A
Other languages
Japanese (ja)
Inventor
Masami Nishimura
西村　正美
Takao Kikuoka
菊岡　孝雄
So Sato
佐藤　宗
Makoto Konishi
真 小西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Corp
Original Assignee
Shin Kobe Electric Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shin Kobe Electric Machinery Co Ltd filed Critical Shin Kobe Electric Machinery Co Ltd
Priority to JP57188699A priority Critical patent/JPS5978457A/en
Publication of JPS5978457A publication Critical patent/JPS5978457A/en
Pending legal-status Critical Current

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

PURPOSE:To prevent weakening of a nickel sintered body caused by corrosion by an acidic solution and improve battery performance by passing a heated sintered substrate through a mixed gas containing oxygen and forming an acid resistant nickel oxide layer on the sintered substrate. CONSTITUTION:A sintered substrate (porosity is 80%) obtained by sintering carbonyl nickel powder by a usual method is passed through a mixed gas of oxygen and nitrogen (the volume ratio is 1:1) for about five minutes when its temperature is high (about 600-700 deg.C) immediately after sintering to form an acid resistant nickel oxide layer on its surface. The temperature inside the sintered substrate is uniform immediately after sintering, and a nickel oxide layer is formed uniformly in the surface and the inside of the sintered substrate. Consequently, weakening of the nickel sintered body caused by corrosion by an acidic solution is prevented, and battery performance is improved.

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.

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【特許請求の範囲】[Claims] 加熱した多孔質焼結金属を酸素を含む混合ガス中を通過
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.
JP57188699A 1982-10-27 1982-10-27 Manufacture of sintered substrate for alkaline battery Pending JPS5978457A (en)

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 (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JP3386634B2 (en) Alkaline storage battery
JPS61140072A (en) Fuel battery
JPH11329453A (en) Positive electrode for fused carbonate fuel cell and its manufacture
JPS5978457A (en) Manufacture of sintered substrate for alkaline battery
JPH10334903A (en) Substrate for alkaline storage battery, its manufacture, and alkaline storage battery
JPS62234867A (en) Nickel electrode for alkaline cell
JPS5996659A (en) Sintered substrate for alkaline battery
JPS5979976A (en) Manufacturing method of sintered substrate for alkaline storage battery
JPS60150558A (en) Production method of fuel electrode for melted carbonate type fuel cell
JPS63114061A (en) Manufacture of sintered nickel electrode for alkaline storage battery
JPH06150905A (en) Composite metal electrode and manufacture thereof
JPS59117066A (en) Production method of cadmium electrode
JPH1131505A (en) Alkaline storage battery electrode and its manufacture, and alkaline storage battery
JPH1012233A (en) Manufacture of hydrogen storage alloy for alkaline storage battery
JPH10154508A (en) Alkaline storage battery, its nickel electrode, and its manufacture
JPS61110971A (en) Molten salt fuel cell
JP2558759B2 (en) Manufacturing method of cadmium negative electrode for alkaline storage battery
JP2638055B2 (en) Manufacturing method of paste-type cadmium negative electrode for alkaline storage battery
JPS60167270A (en) Oxidation electrode for molten salt fuel cell
JPS61240578A (en) Manufacture of nickel sintered substrate for alkaline storage battery
JP2773253B2 (en) Manufacturing method of cadmium negative electrode for alkaline storage battery
JPS60216449A (en) Manufacture of paste type cadmium negative plate
JPH09293503A (en) Manufacture of sintered nickel electrode
JPS63257182A (en) Manufacture of cathode for molten carbonate fuel cell
JPS63164162A (en) Cadmium negative electrode for alkaline storage battery