JPS6394558A - Production of electrode for cell - Google Patents
Production of electrode for cellInfo
- Publication number
- JPS6394558A JPS6394558A JP61238501A JP23850186A JPS6394558A JP S6394558 A JPS6394558 A JP S6394558A JP 61238501 A JP61238501 A JP 61238501A JP 23850186 A JP23850186 A JP 23850186A JP S6394558 A JPS6394558 A JP S6394558A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- electrode
- predetermined portion
- liquid
- electrode substrate
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000011149 active material Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000002585 base Substances 0.000 description 10
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 150000001661 cadmium Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【発明の詳細な説明】
（イ１ 産業上の利用分野
本発明はアルカリ蓄電池などに用いられる電池比
用電極の製法に関するものであって、更に詳しく八
は発泡ニッケル、金属繊維焼結体などの三次元多孔金属
板を用いた電極基体からの活物質除去方法に関するもの
である。Detailed Description of the Invention (1) Industrial Application Field The present invention relates to a method for manufacturing a battery ratio electrode used in alkaline storage batteries, etc. The present invention relates to a method for removing an active material from an electrode substrate using a three-dimensional porous metal plate.
（ロー 従来の技術
アルカリ蓄電池に用いる電極は従来力ルポニルニリケル
焼結体にニッケル塩、カドミウム塩などの溶液を含浸し
、アルカリ処理により活物質化する焼結式製法が主流で
あった。しかし、近年コスト低減と高エネルギー密度化
を計る目的で金属繊維焼結体、発泡ニッケルなどの三次
元多孔金属板にペースト状の活物質を直接充填する非焼
結式製法が検討されている。この種の非焼結式電極の製
法においては基体が集電機能、活物質保持機能及び極板
形状保持機能を有しているため、焼結式極板では不可欠
のパンチングメタルなどの芯体を使う必要がない。Conventional technology The mainstream for electrodes used in alkaline storage batteries has been the sintering method, in which a sintered body of lponyl nickel is impregnated with a solution of nickel salt, cadmium salt, etc., and made into an active material by alkali treatment.However, in recent years, In order to reduce costs and increase energy density, non-sintering manufacturing methods are being considered in which a paste-like active material is directly filled into a three-dimensional porous metal plate such as a metal fiber sintered body or foamed nickel. In the manufacturing method of non-sintered electrodes, the substrate has a current collection function, an active material retention function, and an electrode plate shape retention function, so it is necessary to use a core such as punched metal, which is essential for sintered electrode plates. do not have.
ところで焼結式極板では、芯体の一部を電池端子へ接続
される集電タブとして利用することができるが、前記非
焼結式極板においては芯体を有していないので別途集電
タブを取付ける必要があり且この取付けに難点がある。By the way, in a sintered electrode plate, a part of the core can be used as a current collection tab connected to the battery terminal, but in the non-sintered electrode plate, since it does not have a core, it must be collected separately. It is necessary to install an electric tab, and this installation is difficult.
つまり基体が９０％以上の高多孔度のものであるため、
集電タブの溶接が難しく、機械的強度、電導度が低くな
るものであった。尚、実際に行なわれている集電タブの
取り付は方法は、活物質充填前に集電タブとなる金属板
をスポー７）溶接するか、特開昭５７−８０６７２号公
報に記載されたようにあらかじめ集電タブ溶接部をプレ
スして多孔度を下げ活物質が充填されないようにしてお
き、一連の充填等の工程が終了した後、集電タブ溶接部
の表面に付着した活物質をブラづシングにより除去し、
しかる後集電タブをスポット溶接するものである。しか
し前者は活物質充填以降の生産性を著しく低下させると
いう問題点があり、また後者は工程的に複雑であるうえ
生産性が低く活物質の除去が不十分になりやすく溶接の
信頼性が低下するという問題点がある。In other words, since the substrate has a high porosity of 90% or more,
It was difficult to weld the current collector tab, resulting in low mechanical strength and low conductivity. In addition, the method of actually installing the current collecting tab is to spor-weld the metal plate that will become the current collecting tab before filling the active material, or as described in JP-A-57-80672. The welded part of the current collecting tab is pressed in advance to reduce the porosity and prevent it from being filled with active material, and after the series of steps such as filling are completed, the active material attached to the surface of the welded part of the current collecting tab is removed. Remove by brushing,
After that, the current collecting tab is spot welded. However, the former has the problem of significantly reducing productivity after filling the active material, and the latter has a complex process, low productivity, and tends to result in insufficient removal of the active material, reducing welding reliability. There is a problem with that.
？場 発明が解決しようとする問題点
活物質を充填した三次元多孔金属板よりなる電極基体か
らの集電タブ取付けのための所定部分の活物質除去方法
を改良し、高い生産性と優れた信頼性を有する電池用電
極の製造法を提供するものである。? Problems to be Solved by the Invention The method for removing active material from a predetermined portion for attaching a current collector tab from an electrode base made of a three-dimensional porous metal plate filled with active material has been improved, and high productivity and excellent reliability have been achieved. The present invention provides a method for manufacturing a battery electrode having properties.
に）問題点を解決するための手段
この発明は電池用電極の製造法において、三次元多孔金
属板よりなる電極基体の孔中に活物質を充填させた後、
高圧で噴射された液体により前記電極基体から所定部分
の活物質を除去し、ついで前記所定部分に集電タブを溶
接することを要旨とするものである。また活物質を充填
した前記基体を加圧後、高圧で噴射された液体による活
物質の除去操作を行うことも可能である。B) Means for Solving the Problems This invention relates to a method for manufacturing electrodes for batteries, in which an active material is filled into the pores of an electrode base made of a three-dimensional porous metal plate, and then
The gist of this method is to remove a predetermined portion of the active material from the electrode base using a liquid injected at high pressure, and then weld a current collector tab to the predetermined portion. It is also possible to pressurize the substrate filled with the active material and then remove the active material using a liquid injected at high pressure.
（ホ）作 用
本発明の製造法によれば、高圧で噴射された液体により
、三次元多孔金属板よりなる電極基体の孔中に充填され
た活物質を浸食し、脱落させることで、集電タブ取付け
のための所定部分のみの活物質除去を行なうことができ
る。また噴射された液体により活物質の除去並びに基体
の洗浄が行なわれるので、異物の残存も少なく集電タブ
の溶接が強固となる。(E) Function According to the manufacturing method of the present invention, the liquid injected at high pressure erodes the active material filled in the pores of the electrode base made of a three-dimensional porous metal plate and causes it to fall off. The active material can be removed only from a predetermined portion for attaching an electric tab. In addition, since the active material is removed and the base is cleaned by the jetted liquid, there is little foreign matter remaining and the welding of the current collecting tab becomes strong.
（へ）実施例
この発明についての一実施例を第１図に基づいて説明す
る。(f) Embodiment An embodiment of the present invention will be described based on FIG.
１は非焼結式ニヅケル電極であり、繊維径５〜５０μ、
孔径５〜２００μ、多孔度９０％を有するニッケル繊維
焼結体を用いて厚さを１．Ｏｆｆ程度とし、これを水酸
化ニッケルとポリテトラフルオロエチレンのスラリー中
に浸漬し、引き上げト同時にスリ・ソトで基体表面の余
剰スラリーを取り除いて基体へ活物質を充填し、乾燥後
プレスを行ない０．８朋の厚さに調整したものである。1 is a non-sintered Nizukel electrode with a fiber diameter of 5 to 50μ;
A nickel fiber sintered body with a pore diameter of 5 to 200 μm and a porosity of 90% is used to reduce the thickness to 1. This was immersed in a slurry of nickel hydroxide and polytetrafluoroethylene, and at the same time as it was pulled up, the excess slurry on the surface of the substrate was removed using a pick-and-sew machine, the active material was filled into the substrate, and after drying, it was pressed to 0. The thickness was adjusted to .8 mm.
このニリケル電極に集電タブ取付は部を形成するために
、液体噴射ノズル２を電極基体１に押し当てて０．５秒
、水圧１．８ ｋｇ７ｃｄの条件にて水を噴射した。水
は電極基体１から押し出した活物質とともに噴射液排出
口３より排出される。そして活物質を除去した電極基体
の部分に集電タブをスポット溶接により接合し、完成電
極を得た。In order to attach a current collector tab to this Nikel electrode, the liquid jet nozzle 2 was pressed against the electrode base 1 and water was jetted at a water pressure of 1.8 kg and 7 cd for 0.5 seconds. The water is discharged from the injection liquid discharge port 3 together with the active material extruded from the electrode base 1. Then, a current collector tab was joined by spot welding to the part of the electrode base from which the active material had been removed, to obtain a completed electrode.
第２図は噴射水圧と、活物質の除去率並びに集電タブの
接合強度との関係を示した図である。活物質の除去率は
水の噴射時間を０．５秒と固定し、噴射水圧を種々変化
させたときのものであって、活物質の除去量を、完全に
除去したものを１００として表わしたものである。これ
より水圧が１−よりも小さいと活物質の除去効果は小さ
いが、０．３１で５０％、１ＹＪで９０％の活物質が除
去され、２１でほとんど完全に除去が行なわれる。FIG. 2 is a diagram showing the relationship between the water injection pressure, the active material removal rate, and the bonding strength of the current collector tab. The active material removal rate was determined when the water injection time was fixed at 0.5 seconds and the injection water pressure was varied, and the amount of active material removed was expressed as 100 when the amount of active material was completely removed. It is something. When the water pressure is lower than 1-, the active material removal effect is small, but at 0.31, 50% of the active material is removed, at 1YJ, 90%, and at 21, the active material is almost completely removed.
一方、噴射水圧と集電タブの接合強度の関係を検討して
みると、第２図より水圧が増加するに伴い集電タブの接
合強度が低下している。これは水圧が増加すると基体の
損傷が大きくなるためである。したがって水圧をあまり
大きくするのは好ましくないが、０．８１以下の時には
、残存活物質が多く、十分な接合強度が得られなかった
。On the other hand, when examining the relationship between the jetting water pressure and the bonding strength of the current collecting tabs, it can be seen from FIG. 2 that as the water pressure increases, the bonding strength of the current collecting tabs decreases. This is because as water pressure increases, damage to the substrate increases. Therefore, it is not preferable to increase the water pressure too much, but when the water pressure is 0.81 or less, there is a large amount of residual active material and sufficient bonding strength cannot be obtained.
以上の結果より前述の厚み０．８ｆｌの非焼結式二は部
の大きさや形状に応じて液体の噴射圧力や噴射時間を種
々変えてやれば活物質の除去が効果的に行なわれる。ま
た電池サイズに応じた大きさに切断された電極基体を用
いても何ら支障な〈実施しうる。尚、実施例に示したよ
うに電極基体に活物質を充填し加圧した後活物質除去を
行った場合には電極の高エネルギー密度化が計れる。From the above results, the active material can be removed effectively in the non-sintered type 2 having a thickness of 0.8 fl by varying the liquid injection pressure and injection time depending on the size and shape of the part. Further, it is possible to use an electrode substrate cut into a size corresponding to the battery size without any problem. Note that, as shown in the examples, if the active material is removed after filling the electrode base with the active material and applying pressure, the electrode can be made to have a high energy density.
（ト）発明の効果
五
本発明の製法によれば、集電タブ取付けのためへ
の所定部分のみの活物質除去を行なうことが可能となり
、且集電タブ取付けが容易となり、しかも強力に溶接で
きるので、生産性に優れるものでありその工業的価値は
きわめて大きい。(G) Effects of the Invention 5. According to the manufacturing method of the present invention, it is possible to remove the active material only from a predetermined portion for attaching the current collector tab, and the attachment of the current collector tab is facilitated. Therefore, it has excellent productivity and its industrial value is extremely large.
第１図は本発明の一実施例における液体噴射装置の模式
図であり、第２図は噴射水圧と、活物質の除去率並びに
集電タブの接合強度との関係を示した図である。
１・・・活物質を充填した電極基体、２・・・液体噴射
ノズル、３・・・噴射液排出口。
出頒人 三洋電機株式会社
代理人 弁理士 西野卓！、ｉＣ外１名）第々FIG. 1 is a schematic diagram of a liquid injection device according to an embodiment of the present invention, and FIG. 2 is a diagram showing the relationship between the injection water pressure, the active material removal rate, and the bonding strength of the current collector tab. DESCRIPTION OF SYMBOLS 1... Electrode base filled with active material, 2... Liquid injection nozzle, 3... Injected liquid outlet. Distributor: Sanyo Electric Co., Ltd. agent, patent attorney Takashi Nishino! , 1 person outside of iC)
Claims (2)
質を充填させた後、高圧で噴射された液体により前記電
極基体から所定部分の活物質を除去し、ついで前記所定
部分に集電タブを溶接することを特徴とする電池用電極
の製造法。(1) After filling the pores of an electrode base made of a three-dimensional porous metal plate with an active material, a predetermined portion of the active material is removed from the electrode base using a liquid sprayed at high pressure, and then concentrated in the predetermined portion. A method for manufacturing electrodes for batteries, characterized by welding electric tabs.
噴射された液体による活物質の除去操作を行なうことを
特徴とする特許請求の範囲第（１）項記載の電池用電極
の製造法。(2) The battery electrode according to claim (1), wherein after the electrode base filled with the active material is pressurized, the active material is removed using a liquid injected at high pressure. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61238501A JPS6394558A (en) | 1986-10-07 | 1986-10-07 | Production of electrode for cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61238501A JPS6394558A (en) | 1986-10-07 | 1986-10-07 | Production of electrode for cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6394558A true JPS6394558A (en) | 1988-04-25 |
| JPH0588508B2 JPH0588508B2 (en) | 1993-12-22 |
Family
ID=17031185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61238501A Granted JPS6394558A (en) | 1986-10-07 | 1986-10-07 | Production of electrode for cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6394558A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997043792A1 (en) * | 1996-05-14 | 1997-11-20 | Duracell Inc. | Coiled electrode assemblies and method of producing same |
| EP0924783A1 (en) * | 1997-12-22 | 1999-06-23 | Japan Storage Battery Company Limited | Porous pasted electrode, cell using the same and process for producing electrode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5482632A (en) * | 1977-12-14 | 1979-07-02 | Matsushita Electric Ind Co Ltd | Method of producing anode plate for alkaline storage battery |
| JPS5514685A (en) * | 1978-07-18 | 1980-02-01 | Matsushita Electric Ind Co Ltd | Preparation of electrode for cell |
| JPS5887764A (en) * | 1981-11-19 | 1983-05-25 | Matsushita Electric Ind Co Ltd | Manufacture of electrode plate for battery |
| JPS62206763A (en) * | 1986-03-06 | 1987-09-11 | Yuasa Battery Co Ltd | Manufacture of electrode plate for alkaline battery |
-
1986
- 1986-10-07 JP JP61238501A patent/JPS6394558A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5482632A (en) * | 1977-12-14 | 1979-07-02 | Matsushita Electric Ind Co Ltd | Method of producing anode plate for alkaline storage battery |
| JPS5514685A (en) * | 1978-07-18 | 1980-02-01 | Matsushita Electric Ind Co Ltd | Preparation of electrode for cell |
| JPS5887764A (en) * | 1981-11-19 | 1983-05-25 | Matsushita Electric Ind Co Ltd | Manufacture of electrode plate for battery |
| JPS62206763A (en) * | 1986-03-06 | 1987-09-11 | Yuasa Battery Co Ltd | Manufacture of electrode plate for alkaline battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997043792A1 (en) * | 1996-05-14 | 1997-11-20 | Duracell Inc. | Coiled electrode assemblies and method of producing same |
| EP0924783A1 (en) * | 1997-12-22 | 1999-06-23 | Japan Storage Battery Company Limited | Porous pasted electrode, cell using the same and process for producing electrode |
| US6241790B1 (en) | 1997-12-22 | 2001-06-05 | Japan Storage Battery Co., Ltd. | Electrode, cell using the same and process for producing electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0588508B2 (en) | 1993-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4914059B2 (en) | Current collector, battery electrode substrate, and manufacturing method thereof | |
| JP4292436B2 (en) | Metal porous body, method for producing the same and battery current collector using the same | |
| JP2007258075A (en) | Nickel hydrogen storage battery | |
| JP4903959B2 (en) | Battery current collector and battery using the same | |
| JPS6394558A (en) | Production of electrode for cell | |
| JP2009163976A (en) | Nonwoven fabric substrate for battery, and its manufacturing method | |
| JPH04123757A (en) | Preparation of nickel electrode | |
| JPH07335276A (en) | Recovery method for alkaline storage battery | |
| WO2004095620A1 (en) | Alkali storage battery and method of producing the same | |
| JPH08321303A (en) | Electrode for alkaline secondary battery | |
| JP2000106169A (en) | Electrode manufacturing method and battery | |
| JP2708123B2 (en) | Manufacturing method of paste electrode | |
| JP3081272B2 (en) | Method for manufacturing battery with spiral electrode body | |
| JPS6224906B2 (en) | ||
| JPH10172539A (en) | Electrode for storage battery and its manufacture | |
| JPH08138680A (en) | Electrode base plate for battery and manufacture thereof | |
| JP2000195511A5 (en) | ||
| JPH08255611A (en) | Manufacture of plate for battery | |
| JPH1055802A (en) | Electrode for alkaline secondary battery and manufacture thereof | |
| JPS6340254A (en) | Manufacture of electrode for battery | |
| CN219610483U (en) | Bipolar plate and nickel-hydrogen battery based on bipolar plate | |
| JP2000195511A (en) | Electrode, manufacture of electrode, and battery | |
| JPH05205735A (en) | Manufacture of electrode for battery | |
| CN1275457A (en) | Metal strap covered with foam nickel material and making method thereof | |
| JP3781058B2 (en) | Battery electrode substrate and manufacturing method thereof |