JPH0713176Y2 - Electrode plate for alkaline batteries - Google Patents
Electrode plate for alkaline batteriesInfo
- Publication number
- JPH0713176Y2 JPH0713176Y2 JP1987161597U JP16159787U JPH0713176Y2 JP H0713176 Y2 JPH0713176 Y2 JP H0713176Y2 JP 1987161597 U JP1987161597 U JP 1987161597U JP 16159787 U JP16159787 U JP 16159787U JP H0713176 Y2 JPH0713176 Y2 JP H0713176Y2
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- electrode plate
- plate
- current collector
- welding
- 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 - Lifetime
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 229910052759 nickel Inorganic materials 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000011149 active material Substances 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
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- Y02E60/124—
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は、ニッケル・カドミウム電池、ニッケル・鉄電
池、ニッケル・亜鉛電池等のアルカリ電池用極板の改良
に関するものである。TECHNICAL FIELD The present invention relates to an electrode plate for alkaline batteries such as nickel-cadmium batteries, nickel-iron batteries and nickel-zinc batteries.
従来技術とその問題点 従来よりアルカリ電池に用いられる電極として、鉄やニ
ッケルを素材とする繊維焼結体またはニッケル素材の発
泡メタル等が検討されているが、その端子の取り出し方
法としては、１）多孔体構成要素である繊維あるいは発
泡体をプレス等により高密度化成型しこの部分を端子と
する方法、２）予め切断、あるいは打ち抜いた金属板を
これらの多孔体とスポット溶接する方法等が一般的であ
る。Conventional technology and its problems Conventionally, as an electrode used in an alkaline battery, a fiber sintered body made of iron or nickel or a foamed metal made of nickel material has been studied. ) A method of densifying fibers or foams, which are constituent elements of a porous body, by pressing, etc., and using this portion as a terminal, 2) a method of spot-welding a pre-cut or punched metal plate with these porous bodies. It is common.
しかし１）の方法は、形成した端子部の機械的強度が低
く、例えば円筒形密閉ニッケル・カドミウム電池で採用
されているタブレス方式のように、カドミウムとセパレ
ータを一緒に巻き込んだ後、上部を加圧して電極と容器
を接触せしめる方式においては、集電板をスポット溶接
する前にこの部分が崩れてしまい、期待する集電板とし
ての強度が得られない欠点を有していた。また、多孔体
の一部をプレスすることで、その部分を高密度化し直接
この部分を集電のための端子とする方法は、その工程の
ために、多孔体の特定の一部を折り返し、所定の形状に
整えた後にプレスする工程を必要とし、量産化を困難に
してきた。However, the method 1) has a low mechanical strength at the formed terminal portion, and the cadmium and the separator are wound together and then the upper portion is added, as in the tabless method adopted in, for example, a cylindrical sealed nickel-cadmium battery. In the method in which the electrode and the container are brought into contact with each other by pressing, this portion collapses before spot welding the current collector plate, and there is a drawback that the expected strength of the current collector plate cannot be obtained. Also, by pressing a part of the porous body, to densify that part directly and use this part directly as a terminal for current collection, for that step, a specific part of the porous body is folded back, This requires a step of pressing after adjusting to a predetermined shape, which makes mass production difficult.
また従来から見られる方法としては、電池用活物質を充
填した三次元構造を有する金属多孔体に集電用端子を溶
接した極板であって、集電端子の前記金属多孔体と溶接
する接続部分が帯状であることの提案や、その溶接点が
極板の巻き方向と並列に連続していてその溶接点の間隔
が１〜4mmであることの提案もあるが、それらのいずれ
もが量産に不適当であったりまた、電池の特性を阻害す
る構造である点で、望ましいものとは言えなかった。Further, as a method that has been conventionally seen, there is an electrode plate in which a current collecting terminal is welded to a metal porous body having a three-dimensional structure filled with a battery active material, and a connection for welding the current collecting terminal to the metal porous body. There are proposals that the parts are strip-shaped, and that the welding points are continuous in parallel with the winding direction of the electrode plate and the intervals between the welding points are 1 to 4 mm, but both of them are in mass production. However, it is not desirable because it is unsuitable for the above and has a structure that hinders the battery characteristics.
また２）の方法の代表的な例としては、放射線形状に打
ち抜いた金属板を三次元多孔体上にスポット溶接しこれ
を端子部とし、これにペーストを充填したもの、あるい
は多孔体の一部をプレス等で高密度化しペーストの侵入
を防止した後、ペーストを充填し乾燥後に打ち抜きある
いは切断して予め打ち抜いた金属板をスポット溶接して
これを端子としたもの等がある。Further, as a typical example of the method 2), a metal plate punched in a radiation shape is spot-welded on a three-dimensional porous body and used as a terminal portion, and this is filled with paste, or a part of the porous body. After densifying the paste with a press or the like to prevent the invasion of the paste, the paste is filled and dried, and then punched or cut and spot-welded to a pre-punched metal plate to form terminals.
しかしながらかかる方法では、スポット溶接は限定され
た点でしか多孔体と接続されてはおらず、大部分は単に
機械的に接触しているに過ぎない構造をしていた。However, in such a method, spot welding is connected to the porous body only at limited points, and most of them have a structure in which they are merely in mechanical contact with each other.
かかる構造の多孔体がニッケル正極として用いられた場
合、正極の活物質である酸化ニッケルの如く、本質的に
電子伝導性が期待できない物質の場合はこの方法は不適
当であり、さらにまた、かかる煩雑な工程は大量生産に
は不向きである。When the porous body having such a structure is used as a nickel positive electrode, this method is unsuitable for a substance such as nickel oxide, which is an active material of the positive electrode, in which essentially no electronic conductivity can be expected. The complicated process is not suitable for mass production.
考案の目的 本考案は、かかる従来技術の問題点を解決し、機械的強
度及び集電効率に優れ又、量産に適したアルカリ電池用
極板を提供することを目的とする。DISCLOSURE OF THE INVENTION It is an object of the present invention to solve the above problems of the prior art and to provide an electrode plate for an alkaline battery which is excellent in mechanical strength and current collection efficiency and suitable for mass production.
考案の構成 本考案は、鉄繊維にニッケルメッキを施した焼結体、あ
るいはニッケル繊維焼結体または発泡ニッケル等の三次
元構造を有する金属多孔体に集電板として金属板を連続
的に溶接したことを特徴とするアルカリ電池用極板であ
る。Configuration of the Invention The present invention continuously welds a metal plate as a current collector to a sintered body obtained by nickel-plating iron fiber, or a metal porous body having a three-dimensional structure such as a nickel fiber sintered body or foamed nickel. The electrode plate for an alkaline battery is characterized in that
実施例 以下、本考案をその実施例を示す図面により説明する。Embodiment Hereinafter, the present invention will be described with reference to the drawings illustrating an embodiment thereof.
第１図は、本考案によるアルカリ電池用極板の斜視図
で、三次元構造を有する金属多孔体１の一部を圧縮ある
いはその他の方法により高密度化した部分に、集電板３
をあて、これらを溶接により一体化した部分２があるこ
とを示している。FIG. 1 is a perspective view of an electrode plate for an alkaline battery according to the present invention, in which a part of a porous metal body 1 having a three-dimensional structure is densified by compression or another method, and a current collector plate 3 is formed.
To indicate that there is a portion 2 in which these are integrated by welding.
第２図は、金属多孔体の両側に集電板４、４、をあて、
これらを溶接した部分２および集電板４、４′を相互に
溶接した部分５がみられることを示す。この方式によれ
ば、集電板を２枚必要とする不利はあるが、多孔体が溶
接で目切れする危険性はなくなり、信頼性に富んだ生産
方式が採用できる特徴を有している。FIG. 2 shows that current collector plates 4 and 4 are applied to both sides of the porous metal body,
It is shown that a portion 2 where these are welded and a portion 5 where the current collector plates 4 and 4'are welded to each other are seen. According to this method, although there is a disadvantage that two current collector plates are required, there is no risk of the porous body being cut off by welding, and there is a feature that a highly reliable production method can be adopted.
第３図は、三次元構造を有する金属多孔体１を馬蹄型の
集電板６ではさみこみ、これらを溶接により一体化した
部分２がみられることを示している。この方式は三次元
構造を有する金属多孔体と馬蹄型の集電板とを一体化す
る事で、極板としての集電効果もありまた、生産性にも
優れた方式である。FIG. 3 shows that the metal porous body 1 having a three-dimensional structure is sandwiched between horseshoe-shaped current collector plates 6, and a portion 2 in which these are integrated by welding is seen. This method has a current collecting effect as a polar plate by integrating a metal porous body having a three-dimensional structure and a horseshoe-shaped current collecting plate, and is also excellent in productivity.
実施に際して行われた三次元構造を有する金属多孔体の
一例を挙げれば、構成要素であるニッケル繊維径は25〜
30ミクロン、目付け量は500〜600ク゛ラム／m2程度のもので
ある。To give an example of a metal porous body having a three-dimensional structure that was carried out during the implementation, the diameter of the nickel fiber component is 25 ~
It has a size of 30 microns and a basis weight of about 500 to 600 grams / m 2 .
また、集電板としては、幅10mm、厚み0.1mmの焼鈍した
ニッケル板を用いた。このニッケル繊維からなる三次元
構造を有する金属多孔体は、集電板をあてる部分を予め
ロール掛けしたり、局部的に電気メッキを施したりして
高密度化しその後、連続的にシーム溶接を行った。An annealed nickel plate having a width of 10 mm and a thickness of 0.1 mm was used as the current collector plate. This metallic porous body with a three-dimensional structure made of nickel fibers is pre-rolled on the part to which the current collector plate is applied, or locally electroplated to densify it, and then continuously seam welded. It was
次いでこの溶接により集電板と一体化したニッケル繊維
焼結体を、水酸化ニッケル88％、酸化コバルト12％を含
む水溶液にCMC添加により粘度調整したペースト槽に浸
漬することによりペースト充填した後、カレンダーロー
ルで厚み調整し、乾燥する。その後、厚み調整ロールで
最終厚みに仕上げ、120×100mmの寸法に打ち抜き、これ
で電池を組み立てた。Then, the nickel fiber sintered body integrated with the current collector plate by this welding, after filling the paste by immersing in a paste tank whose viscosity was adjusted by adding CMC to an aqueous solution containing nickel hydroxide 88% and cobalt oxide 12%, Adjust the thickness with a calendar roll and dry. After that, the thickness was adjusted to the final thickness with a thickness adjusting roll and punched into a size of 120 × 100 mm, and a battery was assembled with this.
第４図は、各種構造のニッケル極板からなる電池の特性
比較図である。ここでの放電条件は温度、−15℃、放電
電流、15CAである。FIG. 4 is a characteristic comparison diagram of batteries made of nickel electrode plates having various structures. The discharge conditions here are temperature, −15 ° C., discharge current, and 15 CA.
曲線（Ａ）は、本考案で作成したニッケル極板５枚から
なる正極と、亜鉛極板６枚からなる負極に、セパレータ
としてポリプロピレン不織布及び微孔性ポリプロピレン
フイルムで単電池を構成したもの、曲線（Ｂ）はニッケ
ル極板における三次元構造を有する金属多孔体と集電板
を接続するための溶接を5mm間隔で断続的に行ないその
他の構造は電池（Ａ）と同じもの、また曲線（Ｃ）は、
同間隔を15mmで行ったものである。これ等の曲線より明
らかであるが、ニッケル極板に連続溶接した電池は、断
続的に溶接した電池よりも優れた特性を示しているが、
その一般的な傾向として、溶接の間隔が広がるにつれ
て、高率放電時での放電電圧及び放電時間が低下、短縮
する傾向が認められる。Curve (A) is a positive electrode made of 5 nickel plates and a negative electrode made of 6 zinc plates made by the present invention, and a unit cell is composed of polypropylene nonwoven fabric and microporous polypropylene film as a separator. (B) is the same as the battery (A) in the other structure in which the welding for connecting the metal porous body having a three-dimensional structure in the nickel electrode plate and the current collector plate is intermittently performed at 5 mm intervals, and the curve (C). ) Is
The same interval is 15 mm. As is clear from these curves, the battery continuously welded to the nickel electrode plate shows superior characteristics to the battery intermittently welded,
As a general tendency, there is a tendency that the discharge voltage and the discharge time at the time of high-rate discharge decrease and shorten as the welding interval increases.
上記溶接をするにあたって、アーク溶接、シーム溶接、
レーザー溶接等の手段が知られているが本考案はその手
段として、それらのいずれにも制限されることはない。In performing the above welding, arc welding, seam welding,
Laser welding and other means are known, but the present invention is not limited to any of these means.
本実施例としては、ニッケル正極の場合を述べたが、本
考案はアルカリ電池としての負極、即ちカドミウム極や
亜鉛極にも適用が可能であることは当然である。Although a nickel positive electrode has been described in the present embodiment, it is needless to say that the present invention can be applied to a negative electrode as an alkaline battery, that is, a cadmium electrode or a zinc electrode.
考案の効果 上述した如く、本考案は機械的強度及び集電効率に優れ
また量産にも適したアルカリ電池用極板を提供しその実
用価値は大である。。Effect of the Invention As described above, the present invention provides an electrode plate for an alkaline battery which is excellent in mechanical strength and current collection efficiency and is suitable for mass production, and its practical value is great. .
第１図は本考案によるニッケル極板の斜視図、第２図、
第３図はその他の実施例を示した図、第４図は各種電池
の特性比較図である。 １……金属多孔体、２……溶接部、３……集電板、６…
…馬蹄型の集電板1 is a perspective view of a nickel plate according to the present invention, FIG.
FIG. 3 is a diagram showing another embodiment, and FIG. 4 is a characteristic comparison diagram of various batteries. 1 ... Porous metal, 2 ... Welded part, 3 ... Current collector, 6 ...
… Horseshoe current collector
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−136756（ＪＰ，Ａ) 実開 昭58−155762（ＪＰ，Ｕ) 実公 昭48−1639（ＪＰ，Ｙ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 62-136756 (JP, A) Actual development 58-155762 (JP, U) Actual public 48-1639 (JP, Y1)
Claims (2)
あるいはニッケル繊維焼結体または発泡ニッケル等の三
次元構造を有する金属多孔体の両側に２枚の金属板をあ
て、これらを連続的に溶接したことを特徴とするアルカ
リ電池用極板。1. A sintered body obtained by subjecting iron fiber to nickel plating,
Alternatively, an electrode plate for an alkaline battery, characterized in that two metal plates are placed on both sides of a porous metal body having a three-dimensional structure such as a nickel fiber sintered body or foamed nickel, and these are continuously welded.
し、上記三次元構造を有する金属多孔体を挟み連続的に
溶接した実用新案登録請求の範囲第１項記載のアルカリ
電池用極板。2. The alkaline battery according to claim 1, wherein the metal plate serving as a current collector has a horseshoe shape, and the porous metal body having the three-dimensional structure is sandwiched and continuously welded. Electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161597U JPH0713176Y2 (en) | 1987-10-21 | 1987-10-21 | Electrode plate for alkaline batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161597U JPH0713176Y2 (en) | 1987-10-21 | 1987-10-21 | Electrode plate for alkaline batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0164859U JPH0164859U (en) | 1989-04-26 |
| JPH0713176Y2 true JPH0713176Y2 (en) | 1995-03-29 |
Family
ID=31444677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987161597U Expired - Lifetime JPH0713176Y2 (en) | 1987-10-21 | 1987-10-21 | Electrode plate for alkaline batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0713176Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012186033A (en) * | 2011-03-07 | 2012-09-27 | Sumitomo Electric Ind Ltd | Porous heating element, manufacturing method of porous heating element and gas decomposition element |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS481639U (en) * | 1971-05-31 | 1973-01-10 | ||
| JPS5020447U (en) * | 1973-06-14 | 1975-03-07 | ||
| JPS58155762U (en) * | 1982-04-13 | 1983-10-18 | 日本電池株式会社 | Cylindrical alkaline storage battery |
| JPS62136756A (en) * | 1985-12-10 | 1987-06-19 | Matsushita Electric Ind Co Ltd | Battery plate |
-
1987
- 1987-10-21 JP JP1987161597U patent/JPH0713176Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0164859U (en) | 1989-04-26 |
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