JPS6247964A - Manufacture of porous substrate for alkaline storage battery - Google Patents
Manufacture of porous substrate for alkaline storage batteryInfo
- Publication number
- JPS6247964A JPS6247964A JP60188182A JP18818285A JPS6247964A JP S6247964 A JPS6247964 A JP S6247964A JP 60188182 A JP60188182 A JP 60188182A JP 18818285 A JP18818285 A JP 18818285A JP S6247964 A JPS6247964 A JP S6247964A
- Authority
- JP
- Japan
- Prior art keywords
- porous substrate
- fibers
- nickel alloy
- storage battery
- alkaline storage
- 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はアルカリ蓄電池用多孔体基板の製造法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a porous substrate for an alkaline storage battery.
従来技術とその問題点
アルカリ蓄電池用極板には各種形式があるが、最近特に
繊維式極板が注目されている。Prior art and its problems There are various types of electrode plates for alkaline storage batteries, but fiber type electrode plates have recently been attracting particular attention.
この極板は金ｍ繊維のマット状分布体を基板とし、これ
に活物質を充填したもので、他の形式に比べて特性が優
れている。This electrode plate has a mat-like distribution body of gold fibers as a substrate, which is filled with an active material, and has superior characteristics compared to other types.
従来、繊維式のアルカリ蓄電池用多孔体基板の製造法と
しては、耐アルカリ性金ｊＩ繊維である鉄、またはニッ
ケルの繊維をマット状に分布した分布体を還元性雰囲気
中で９００〜１２００℃のＷ気炉で１０〜２０分間保持
し、繊維相亙の接触点を焼結し、さらに鉄繊維では電気
メッキあるいは無電解メッキによりニッケルを被覆して
いた。しかしながら、この製造法による多孔体基板は、
活特質の充填容積をできるだけ多くするために、金属繊
維体の表面拡散による焼結に頼らなければならず、焼結
多孔体基板の焼結強度が低い欠点があった。このような
焼結強度の低い基板を用いた場合、活物質充填、乾燥等
の連続製造工程において、しばしば多孔体基板が切断す
るというトラブルを生じる。このために極板生産能率が
低下し、又切断部分は不良品となり歩留りが悪い欠点が
あった。しいて強度を得ようとすれば、１２００°Ｃ以
上の高温に加熱するとか、または数１０分の長時間加熱
を行わねばならず、設備の製作または維持費が極めて大
となるか、または生産性が極めて悪くならざるを得なか
った。Conventionally, as a manufacturing method for a porous substrate for a fiber-type alkaline storage battery, a distribution body in which iron or nickel fibers, which are alkali-resistant gold jI fibers, are distributed in a mat-like manner is heated in a reducing atmosphere with W at 900 to 1200°C. The fibers were held in an air furnace for 10 to 20 minutes to sinter the contact points between the fibers, and the iron fibers were coated with nickel by electroplating or electroless plating. However, the porous substrate manufactured by this manufacturing method is
In order to increase the filling volume of the active material as much as possible, it is necessary to rely on sintering by surface diffusion of the metal fiber body, which has the disadvantage that the sintering strength of the sintered porous substrate is low. When such a substrate with low sintering strength is used, trouble often arises in that the porous substrate is cut during continuous manufacturing steps such as active material filling and drying. As a result, the production efficiency of the electrode plates is reduced, and the cut portions are defective, resulting in poor yields. In order to obtain strength, it is necessary to heat it to a high temperature of 1,200°C or more, or to heat it for a long time of several tens of minutes, resulting in extremely high equipment manufacturing and maintenance costs, or production costs. I had no choice but to have extremely bad sex.
発明の目的
本発明は上記に鑑みなされたものであり、基板強度を向
上した生産性に優れた安価なアルカリ蓄電池用多孔体基
板を提供することを目的とする。OBJECTS OF THE INVENTION The present invention has been made in view of the above, and an object thereof is to provide an inexpensive porous substrate for an alkaline storage battery with improved substrate strength and excellent productivity.
発明の構造
耐アルカリ性繊維のマット状分布体に低融点ニッケル合
金粉末の懸濁液を付着させた後、非酸化性又は還元性雰
囲気中で加熱し冷却して、繊維表面をニッケル合金によ
り被覆及び繊維間をニッケル合金により結合した製造法
である。Structure of the Invention After a suspension of low melting point nickel alloy powder is attached to a mat-like distribution body of alkali-resistant fibers, the fiber surface is coated with a nickel alloy by heating and cooling in a non-oxidizing or reducing atmosphere. This is a manufacturing method in which the fibers are bonded using a nickel alloy.
実施例 本発明の詳細について、実施例により説明する。Example The details of the present invention will be explained by examples.
第１図は本発明による多孔体基板であり、第２図は第１
図の要部拡大図である。第３図はニッケル合金被覆耐ア
ルカリ性繊維の単繊維拡大断面図である。１はニッケル
合金被覆耐アルカリ性繊維、２はニッケル合金結合点、
３はニッケル合金被覆層、４は鉄繊維である。FIG. 1 shows a porous substrate according to the present invention, and FIG. 2 shows a porous substrate according to the present invention.
It is an enlarged view of the main part of the figure. FIG. 3 is an enlarged cross-sectional view of a single fiber of the nickel alloy-coated alkali-resistant fiber. 1 is a nickel alloy coated alkali-resistant fiber, 2 is a nickel alloy bonding point,
3 is a nickel alloy coating layer, and 4 is an iron fiber.
繊維径が５〜１００μの耐アルカリ性繊維をマット状に
分布する。巾５００ｔｎＬ、長さ３０＃ｌ。Alkali-resistant fibers with a fiber diameter of 5 to 100 μm are distributed in a mat shape. Width 500tnL, length 30#l.
厚さ１０Ｍの帯状物である。耐アルカリ性繊維の材質は
、たとえば鉄、ニッケル、カーボン１ステンレス等であ
る。こ＼では一実施例として鉄繊維について示す。It is a strip with a thickness of 10M. The material of the alkali-resistant fiber is, for example, iron, nickel, carbon 1 stainless steel, etc. Here, iron fiber will be shown as an example.
ニッケルに少量のホウ素あるいはリンを含有する低融点
ニッケル合金（ｍ、ｐ、 ８００〜９５０℃）粉末を泪
いて、７０％アルコール懸濁液（メタノール７０ｗｔ％
と９ＯＮｉ−１０Ｂの合金３０ｗｔ％）を調整する。鉄
繊維分布体に低融点ニッケル合金のメタノール懸濁液を
吹き付け、付着させる。繊維表面に低融点ニッケル合金
粉末が付着した分布体にカーボン板を載せ分布体の厚さ
が約３〜５鴎となる様に加圧し、加圧状態の分布体を水
素雰囲気で温度８００〜１０００℃で１０〜２０分間保
持した後、同雰囲気でｊ００’ｃ以下に冷却し空気中に
取り出し、切断して第１図の多孔体基板を得た。尚、こ
の加熱、冷却の雰囲気は窒素、アルゴン等の非酸化性雰
囲気でもよい。A low melting point nickel alloy (m, p, 800-950℃) powder containing nickel and a small amount of boron or phosphorus is poured into a 70% alcohol suspension (methanol 70wt%).
and 9ONi-10B alloy (30 wt%). A methanol suspension of a low melting point nickel alloy is sprayed onto the iron fiber distribution body to make it adhere. A carbon plate is placed on a distribution body with low melting point nickel alloy powder attached to the fiber surface, and pressure is applied so that the thickness of the distribution body becomes about 3 to 5 mm.The pressurized distribution body is heated to a temperature of 800 to 1000 in a hydrogen atmosphere. After being held at a temperature of 10 to 20 minutes, it was cooled to below j00'c in the same atmosphere, taken out into the air, and cut to obtain the porous substrate shown in FIG. The atmosphere for this heating and cooling may be a non-oxidizing atmosphere such as nitrogen or argon.
このようにして鉄繊維体に１〜７μのニッケル合金被覆
層を形成する。ニッケル合金波１１２、ｆｉｌの厚さが
１μ以下ではピンホールが出来る。又７μ以上では多孔
体基板の多孔度が減少し充填容積が少なくなるので、こ
の範囲が適切である。In this way, a nickel alloy coating layer of 1 to 7 microns is formed on the iron fiber body. If the thickness of the nickel alloy wave 112 or fil is less than 1 μm, pinholes will occur. Moreover, if it is 7μ or more, the porosity of the porous substrate decreases and the filling volume decreases, so this range is appropriate.
本発明による鉄繊維多孔体基板と従来の還Ｓ−
光性雰囲気で何分間保持して得た鉄繊維多孔体基板に６
μのニッケルメッキした多孔体基板の焼結強度を比較し
たところ第１表の如くである。The iron fiber porous substrate according to the present invention and the conventional reduced S-porous iron fiber substrate obtained by holding the substrate in a light atmosphere for several minutes were compared with each other.
Table 1 shows a comparison of the sintering strengths of porous substrates plated with μ nickel.
第１表
本発明の多孔体基板は従来品に比し焼結温度が低く、焼
結時間も短いにもか−わらず約４倍の基板強度を有する
ので、極板生産工程中で帯状基板が切断するトラブルが
防止でき、生産能率の低下が生じない。又切断部分が無
くなるので生産の歩留りが向上する。もちろん、焼結炉
の設備費も安くなり、加熱用の電力費も少なくなる事は
明らかである。Table 1: Compared to conventional products, the porous substrate of the present invention has a lower sintering temperature and shorter sintering time, yet has approximately four times the strength of the substrate. The trouble of cutting can be prevented, and there is no reduction in production efficiency. Furthermore, since there are no cutting parts, the production yield is improved. Of course, it is clear that the cost of equipment for the sintering furnace will be lower and the cost of electricity for heating will also be lower.
発明の効果
本発明は上述した如く、基板強度を向上した生産性に優
れた安価なアルカリ蓄電池用多孔体基板を提供すること
ができるので、その工業的価値は極めて大である。Effects of the Invention As described above, the present invention can provide an inexpensive porous substrate for alkaline storage batteries with improved substrate strength and excellent productivity, and therefore has extremely great industrial value.
第１図は本発明による多孔体基板であり１第２図は第１
図の要部拡大図である。第５図はニッケル合金被覆繊維
の単繊維の拡大断面図である。
１・・・ニッケル合金被覆繊維
２・・・ニッケル合金結合点
６・・・二ｙケル合金被覆層
４・・・鉄繊維Fig. 1 shows a porous substrate according to the present invention, and Fig. 2 shows a porous substrate according to the present invention.
It is an enlarged view of the main part of the figure. FIG. 5 is an enlarged sectional view of a single fiber of nickel alloy coated fiber. 1...Nickel alloy coated fiber 2...Nickel alloy bonding point 6...2ykel alloy coated layer 4...Iron fiber
Claims (3)
ケル合金粉末の懸濁液を付着させた後、非酸化性又は還
元性雰囲気中で加熱し冷却して、繊維表面をニッケル合
金により被覆及び繊維間をニッケル合金により結合する
ことを特徴とするアルカリ蓄電池用多孔体基板の製造法
。(1) After attaching a suspension of low melting point nickel alloy powder to a mat-like distribution body of alkali-resistant fibers, the fibers are coated with nickel alloy by heating and cooling in a non-oxidizing or reducing atmosphere. A method for producing a porous substrate for an alkaline storage battery, characterized in that fibers are bonded by a nickel alloy.
の範囲第１項記載のアルカリ蓄電池用多孔体基板の製造
法。(2) The method for producing a porous substrate for an alkaline storage battery according to claim 1, wherein heating and cooling are performed under pressure.
求の範囲第１項記載のアルカリ蓄電池用多孔体基板の製
造法。(3) The method for producing a porous substrate for an alkaline storage battery according to claim 1, wherein the alkali-resistant fiber has electronic conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60188182A JPS6247964A (en) | 1985-08-26 | 1985-08-26 | Manufacture of porous substrate for alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60188182A JPS6247964A (en) | 1985-08-26 | 1985-08-26 | Manufacture of porous substrate for alkaline storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6247964A true JPS6247964A (en) | 1987-03-02 |
Family
ID=16219199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60188182A Pending JPS6247964A (en) | 1985-08-26 | 1985-08-26 | Manufacture of porous substrate for alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6247964A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04133472U (en) * | 1991-02-28 | 1992-12-11 | 株式会社ケンウツド | Assembly structure of audio equipment |
| US5320512A (en) * | 1992-09-24 | 1994-06-14 | E. I. Du Pont De Nemours And Company | Apparatus for spinning multicomponent hollow fibers |
| WO1997016861A1 (en) * | 1995-11-02 | 1997-05-09 | Toyo Kohan Co., Ltd. | Core body for electrode base of secondary cell, process for manufacturing the core body, electrode base of secondary cell, process for manufacturing the electrode base, and electrode and battery using them |
-
1985
- 1985-08-26 JP JP60188182A patent/JPS6247964A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04133472U (en) * | 1991-02-28 | 1992-12-11 | 株式会社ケンウツド | Assembly structure of audio equipment |
| US5320512A (en) * | 1992-09-24 | 1994-06-14 | E. I. Du Pont De Nemours And Company | Apparatus for spinning multicomponent hollow fibers |
| WO1997016861A1 (en) * | 1995-11-02 | 1997-05-09 | Toyo Kohan Co., Ltd. | Core body for electrode base of secondary cell, process for manufacturing the core body, electrode base of secondary cell, process for manufacturing the electrode base, and electrode and battery using them |
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