JPH02288067A - Manufacture of battery electrode and device therefor - Google Patents

Manufacture of battery electrode and device therefor

Info

Publication number
JPH02288067A
JPH02288067A JP1108047A JP10804789A JPH02288067A JP H02288067 A JPH02288067 A JP H02288067A JP 1108047 A JP1108047 A JP 1108047A JP 10804789 A JP10804789 A JP 10804789A JP H02288067 A JPH02288067 A JP H02288067A
Authority
JP
Japan
Prior art keywords
slurry
roller
substrate
base
filling
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
JP1108047A
Other languages
Japanese (ja)
Inventor
Kazuaki Ozaki
尾崎 和昭
Makoto Kanbayashi
誠 神林
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP1108047A priority Critical patent/JPH02288067A/en
Publication of JPH02288067A publication Critical patent/JPH02288067A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Battery Electrode And Active Subsutance (AREA)

Abstract

PURPOSE:To pack slurry in a base at high packing rate and in a uniform manner by guiding the base in such a manner that it makes contact at least at one point with that portion of a packing roller which is not embedded in the slurry, and rotating the roller at such a speed that the amount of slurry supplied becomes a predetermined packing amount. CONSTITUTION:A slurry 5 is film-shapedly attached on the surface of a packing roller 3 by rotation of the roller 3 and is transferred to an A portion where the roller 3 and a base 1 make contact with each other, and the slurry is packed in the base. Because the slurry 5 is supplied from the lower face of the base 1 and pushed toward the upper face thereof, air is smoothly substituted by the slurry in the base. Thickness of the slurry film-shapedly attached on the packing roller 3, rotating speed of the packing roller, and density of the slurry, etc., are adjusted so that the amount of slurry supplied from the packing roller 3 to the base 1 is 1.2 to 5 times the amount of slurry packed therein which is calculated according to the void ratio of the base 1, and thereby the slurry is uniformly packed in the base.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は、アルカリ蓄電池等に使用される三次元的な連
通孔を有する金属多孔体を基体として用いる電池用電極
の製造方法、及びその装置に関するものである。
Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a method for producing a battery electrode using a porous metal body having three-dimensional communicating pores as a base material used in alkaline storage batteries, etc. It is related to the device.

(ロ)従来の技術 アルカリ蓄電池等のt極の製造方法として、近年焼結式
に代って、金属繊維焼結体や発泡ニッケル等の三次元的
な連通孔を有する金属多孔体(以下、三次元金属多孔体
という)に、活物質粉末を充填して作製する非焼結式製
法が研究されている。この製造方法では、基体として用
いる三次元金属多孔体が多孔度88〜95%、孔径数百
ミクロンにも及ぶことから、活物質を粉末状態で直接基
体内部に充填することができ、これにより製造工程が簡
略化すると共に製造所要時間も短縮できる。更に、を極
の高エネルギー密度化も可能なことから、性能向上につ
いても有効な製造方法とみなされている。
(b) Conventional technology In recent years, the sintering method has been replaced as a manufacturing method for the T-electrode of alkaline storage batteries, etc., using porous metal materials (hereinafter referred to as A non-sintering manufacturing method is being researched in which a three-dimensional metal porous body is filled with active material powder. In this manufacturing method, the three-dimensional metal porous body used as the substrate has a porosity of 88 to 95% and a pore diameter of several hundred microns, so the active material can be directly filled inside the substrate in powder form. This simplifies the process and reduces the time required for manufacturing. Furthermore, since it is possible to increase the energy density of the pole, it is considered an effective manufacturing method for improving performance.

ところが、高エネルギー密度化をはかるために、三次元
金属多孔体内部に活物質粉末を均一に且つ高密度に充填
するのは意外と難しい。三次元金属多孔体はフィルター
として一般的に用いられるものであり、スラリー状活物
質を充填する際に、液体だけが内部に入り、活物質粉末
が三次元金属多孔体表面で濾過されて、所要量の活物質
が充填できないという不都合が生じる。このため、活物
質の充填方法については多くの提案がなされている。
However, it is surprisingly difficult to uniformly and densely fill the interior of a three-dimensional metal porous body with active material powder in order to achieve high energy density. Three-dimensional metal porous bodies are commonly used as filters, and when filled with a slurry-like active material, only the liquid enters the interior, and the active material powder is filtered on the surface of the three-dimensional metal porous body to obtain the required amount. This causes the inconvenience that the amount of active material cannot be filled. For this reason, many proposals have been made regarding methods for filling active materials.

例えば、特公昭59−31832号公報や特公昭59−
24492号公報では、基体の上表面の摺り具によって
スラリーを機械的に摺り込むことが提案され、特開昭5
9−81866号公報や特開昭59−81868号公報
では、スラリーを空気とともに基体に吹き付けてその圧
力で充填することが提案されている。しかしながら、前
者の場合は装置の構成が複雑になる上に、充填量の均一
化が難しいという問題がある。後者の場合には高圧を用
いて充填することになるため、充分な剛性を持った基体
でなければ耐えられない。また、空気を一緒に充填する
ことになるため、充填量が少なくなり、また、定量性が
得難いなどの問題がある。
For example, Japanese Patent Publication No. 59-31832 and Japanese Patent Publication No. 59-31832
No. 24492 proposes mechanically rubbing slurry with a rubbing tool on the upper surface of the base, and Japanese Patent Laid-Open No. 5
No. 9-81866 and Japanese Unexamined Patent Publication No. 59-81868 propose spraying a slurry together with air onto a substrate and filling it with the pressure. However, in the former case, there are problems in that the configuration of the device is complicated and it is difficult to make the filling amount uniform. In the latter case, high pressure is used for filling, and only a substrate with sufficient rigidity can withstand it. Furthermore, since air is also charged, there are problems such as the amount of filling is small and it is difficult to obtain quantitative performance.

(ハ)発明が解決しようとする課題 本発明はかかる点に鑑みなされたものであって、三次元
金属多孔体にスラリー状の活物質を充填するに際して、
電極製造工程上効率良く、高い充填率でしかも均一に充
填することができる電池用電極の製造方法、及びその装
置を提供しようとするものである。
(c) Problems to be Solved by the Invention The present invention has been made in view of the above points, and when filling a three-dimensional porous metal body with a slurry-like active material,
It is an object of the present invention to provide a method for manufacturing a battery electrode, which is efficient in the electrode manufacturing process, and can be filled uniformly at a high filling rate, and an apparatus therefor.

(ニ)課題を解決するための手段 本発明の電池用電極の製造方法は、三次元金属多孔体を
基体とし、連続的に供給される該基体の空孔内に活物質
粉末を主成分とするスラリーを充填する方法であって、
槽内に満たされたスラリーに少なくとも一部浸漬するが
完全に没しない位置にローラーを設置し、該ローラーの
スラリー内に没していない少なくとも一点で接するよう
に前記基体を導き、前記基体ローラーから前記へ供給す
るスラリー量が前記基体の空隙率から算出されるスラリ
ーの充填量の1.2〜5倍となる速度で前記ローラーを
回転させ、前記スラリーを前記基体に充填することを特
徴とするものである。
(d) Means for Solving the Problems The method for producing a battery electrode of the present invention uses a three-dimensional porous metal body as a base, and contains active material powder as a main component in the pores of the base that is continuously supplied. A method of filling a slurry comprising:
A roller is installed at a position where it is at least partially immersed in, but not completely immersed in, the slurry filled in the tank, and the substrate is guided so as to be in contact with the roller at least at one point that is not immersed in the slurry, and the roller is removed from the substrate roller. The roller is rotated at a speed such that the amount of slurry supplied to the substrate is 1.2 to 5 times the filling amount of slurry calculated from the porosity of the substrate, and the slurry is filled into the substrate. It is something.

一方、本発明の電池用t8iの製造装置は、三次元金属
多孔体を基体とし、連続的に供給される該基体の空孔内
に活物質粉末を主成分とするスラノーを充填する装置で
あって、前記基体を連続的に供給する手段と、前記スラ
リーを満たした槽と、前記スラリーを前記基体に充填す
る充填ローラーと、前記充填ローラーを回転駆動させる
駆動装置とを備え、前記充填ローラーが前記スラリー内
に少なくとも一部浸漬するが完全に没しない位置に配置
され、前記スラリー内に没していない少なくとも一点で
前記基体に接し、且つローラーの外周面において回転方
向に対し直角方向に多数の溝状凹部を有すると共に、ロ
ーラーの外周面における凸部の面積が前記凹部の面積に
対して1/6以上であることを特徴とする。
On the other hand, the device for manufacturing t8i for batteries of the present invention uses a three-dimensional porous metal body as a base, and fills the pores of the base with slanow containing active material powder as a main component, which is continuously supplied. and a means for continuously supplying the substrate, a tank filled with the slurry, a filling roller for filling the slurry into the substrate, and a drive device for rotationally driving the filling roller, wherein the filling roller is A plurality of rollers arranged at a position at least partially immersed in the slurry but not completely immersed in the slurry, in contact with the substrate at least at one point not immersed in the slurry, and in a direction perpendicular to the rotational direction on the outer circumferential surface of the roller. The roller has a groove-like recess, and the area of the convex portion on the outer peripheral surface of the roller is 1/6 or more of the area of the recess.

(ホ)作 用 三次元金属多孔体を基体とし、これにスラリー状活物質
を充填する場合には、スラリーを単に基体上に供給する
だけ、あるいはスラリー槽中に基体を浸してやるだけで
は、充分な量を均一に充填することはできない。このた
め、スラリーを機械的に基体内部へ押し込む操作が必要
となる。このような装置で且つ複雑な構成を必要としな
いものとして、基体の移動速度と異なる速度で回転する
ローラーに基体を接触させ、このローラーを用いてスラ
リーを充填する方法が有効であることがわかった。
(e) Function When using a three-dimensional porous metal body as a base and filling it with a slurry-like active material, it is not sufficient to simply supply slurry onto the base or immerse the base in a slurry tank. It is not possible to fill a large amount uniformly. Therefore, it is necessary to mechanically push the slurry into the base. It has been found that an effective method for such an apparatus that does not require a complicated configuration is to bring the substrate into contact with a roller that rotates at a speed different from the moving speed of the substrate and use this roller to fill the slurry. Ta.

ところで、上記ローラーを用いて充填する場合において
も、ローラーをスラリー中に没した状態に設置すると、
三次元金属多孔体からなる基体は、スラリー中に浸漬し
た際に、その表面に僅かではあるが含水率の低下したス
ラリーが付着してしまい、この状態でローラーによりス
ラリーを押し込むと、基体内に気泡などが残り均一に充
填することができない。つまり、均一な充填を行なうに
は、上記濾過作用を生じさせないこと、及び基体内部の
空気とスラリーとの置換を効率良く行なわせることが重
要である。
By the way, even when filling using the above roller, if the roller is placed submerged in the slurry,
When a substrate made of a three-dimensional metal porous material is immersed in a slurry, a small amount of slurry with a reduced water content adheres to the surface of the substrate, and when the slurry is pushed into the substrate with a roller in this state, it is mixed into the substrate. Air bubbles remain, making it impossible to fill evenly. In other words, in order to perform uniform filling, it is important not to cause the above-mentioned filtration action and to efficiently replace the air inside the base with the slurry.

本発明者らは、上記2つの要点を達成し均一な充填を行
なうためには、前記課題を解決する手段で記載した方法
、装置を用いてスラリーを基体に充填することが最適で
あることを見い出した。この点について図面を用いて以
下に説明する。
The present inventors have found that in order to achieve the above two points and perform uniform filling, it is optimal to fill the substrate with slurry using the method and apparatus described in the means for solving the problems above. I found it. This point will be explained below using the drawings.

第1図及び第2図は本発明にかかる電池用電極の製造装
置の一実施例であり、1は基体、2.4はガイドローラ
ー、3は充填ローラー 5は活物質スラリー 6はスラ
リーの液面、7は基体表面に付着した余剰のスラリーを
かき落とすスフレバー 8は槽を夫々示す。槽8内には
連続的にスラリー5が供給されており、余剰分のスラリ
ーはオーバーフロー9から槽8外に排出することにより
、スラリーの液面6は一定に保たれている。ここにおい
てニッケルマット等の三次元金属多孔体からなる基体l
は駆動ローラー(図示しない)により引っ張られ、ガイ
ドローラー2を介して充填ローラー3へ連続的に導かれ
る。この充填ローラー3はスラリー5中に一部が没する
様に設置され、基体lとA部で′接すると共に、駆動装
置(図示しない)により設定速度で基体1の移動方向と
は反対方向に回転するように構成される。また、この充
填ローラー3の表面には、第3図には示すように、ロー
ラーの回転方向に対し直角方向に多数の溝状凹部10を
有すると共に、ローラーの外周面における凸部11の面
積と前記凹部の面積の関係がl:1となっている。
1 and 2 show an embodiment of the battery electrode manufacturing apparatus according to the present invention, in which 1 is a substrate, 2.4 is a guide roller, 3 is a filling roller, 5 is an active material slurry, and 6 is a slurry liquid. 7 indicates a souffle bar for scraping off excess slurry adhering to the surface of the substrate, and 8 indicates a tank. Slurry 5 is continuously supplied into the tank 8, and the liquid level 6 of the slurry is kept constant by discharging excess slurry from the overflow 9 to the outside of the tank 8. Here, a base l made of a three-dimensional porous metal material such as nickel matte
is pulled by a drive roller (not shown) and guided continuously via a guide roller 2 to a filling roller 3. This filling roller 3 is installed so as to be partially submerged in the slurry 5, contacts the base 1 at part A, and is rotated at a set speed by a drive device (not shown) in the opposite direction to the moving direction of the base 1. configured to do so. Further, as shown in FIG. 3, the surface of this filling roller 3 has a large number of groove-like recesses 10 in a direction perpendicular to the rotation direction of the roller, and the area of the convex portions 11 on the outer peripheral surface of the roller The relationship between the areas of the recesses is l:1.

この装置では、スラリー5が前記充填ローラー3の回転
により、ローラー3の表面に膜状に付着して、ローラー
3と基体1とが接触するA部に運ばれ、基体へ充填され
る。そして、スラリー5は基体1の下面から供給され上
面に押し上げられていくため、基体中の空気とスラリー
との置換がスムーズに行なわれる。また、前記充填ロー
ラー3に膜状に付着するスラリーの厚み、充填ローラー
の回転速度及びスラリーの密度等を調整することにより
、充填ローラー3から基体lに供給するスラリー量を基
体lの空隙率から算出されるスラノーの充填量の1.2
〜5倍となるようにすると、均一にスラリーを充填でき
る。この理由は明らかでない部分もあるが、182倍よ
り少ないと基体に押し込まれるスラリー量が充分ではな
くなり、基体の内部空間が完全にスラリーで満たされな
かったり、基体中の空気が充分に抜ききれなかったりし
て、不均一な充填になる。一方5倍より多いと、充填ロ
ーラー2と基体1とが接触する第1図のA部において、
基体1に充填しきれずに充填ローラー2の表面に残った
スラリーが、A部に到達する以前のB部において基体の
下面から一部充填されたり、A部において基体1の上面
から押し出されたスラリーがB部において基体の上面に
覆いかぶさったりする。これらの場合には、基体の表面
で濾過作用が生じ、水分量が減少して流動性の小さいス
ラリーが基体表面に存在することになるので、この状態
でA部においてスラリーを充填しても、スラリーはスム
ーズに基体中に入り込み難くなり不均一な充填になるも
のと考えられる。これに対し、1.2〜5倍の範囲では
上述影響が抑えられ、均一な充填ができているものと考
えられる。また、第3図に示すような多数の溝状凹部を
充填ローラーの表面に設けることにより、効率よく均一
に充填できる。これは前記溝状凹部において基体と充填
ローラー間に隙間ができ、直接基体に接する充填ローラ
ーの凸部に比べて、スラリーを基体に押し込む力が弱く
なることに起因すると考えられる。一般に三次元金属多
孔体にスラリ−を充填する際には、大きな力をかけすぎ
ると濾過作用が大きくなりスムーズに充填し難くなる傾
向があり、前記溝状凹部を設けることにより、この傾向
が緩和されたものと思われる。但し、前記凸部の面積が
凹部の面積の175未満になると、スラリー充填時に基
体の厚みが減少したり、スラリーを押し込む力が弱くな
り過ぎて、連続的に均一な充填を行なうことが難しくな
るため、1/6以上とする必要がある。
In this apparatus, as the filling roller 3 rotates, the slurry 5 adheres to the surface of the roller 3 in the form of a film, and is carried to a portion A where the roller 3 and the substrate 1 come into contact with each other, and is filled into the substrate. Since the slurry 5 is supplied from the lower surface of the base 1 and pushed up to the upper surface, air in the base is smoothly replaced with the slurry. In addition, by adjusting the thickness of the slurry that adheres to the filling roller 3 in a film form, the rotation speed of the filling roller, the density of the slurry, etc., the amount of slurry supplied from the filling roller 3 to the substrate l can be adjusted from the porosity of the substrate l. 1.2 of the calculated filling amount of slanough
By increasing the amount by ~5 times, the slurry can be uniformly filled. The reason for this is not clear, but if it is less than 182 times, the amount of slurry pushed into the substrate will not be sufficient, and the internal space of the substrate will not be completely filled with slurry, or the air in the substrate will not be removed sufficiently. This may result in uneven filling. On the other hand, if the amount is more than 5 times, in the part A of FIG. 1 where the filling roller 2 and the base 1 are in contact,
Slurry remaining on the surface of the filling roller 2 without being completely filled into the substrate 1 may be partially filled from the bottom surface of the substrate in section B before reaching section A, or slurry pushed out from the top surface of the substrate 1 in section A. covers the upper surface of the base body in part B. In these cases, a filtration action occurs on the surface of the substrate, the water content decreases, and a slurry with low fluidity is present on the surface of the substrate, so even if the slurry is filled in part A in this state, It is thought that the slurry becomes difficult to smoothly enter the substrate, resulting in non-uniform filling. On the other hand, it is considered that in the range of 1.2 to 5 times, the above-mentioned influence is suppressed and uniform filling is achieved. Moreover, by providing a large number of groove-like recesses as shown in FIG. 3 on the surface of the filling roller, it is possible to efficiently and uniformly fill the filling roller. This is thought to be due to the fact that a gap is created between the substrate and the filling roller in the groove-like recessed portion, and the force for pushing the slurry into the substrate is weaker than in the convex portion of the filling roller that is in direct contact with the substrate. Generally, when filling a three-dimensional metal porous body with slurry, if too much force is applied, the filtration effect increases and it becomes difficult to fill the slurry smoothly.By providing the groove-like recesses, this tendency can be alleviated. It seems that it was done. However, if the area of the convex portion is less than 175 times the area of the concave portion, the thickness of the substrate may decrease during slurry filling, and the force for pushing the slurry becomes too weak, making it difficult to perform continuous and uniform filling. Therefore, it is necessary to set it to 1/6 or more.

(へ)実施例 活物質である水酸化ニッケル粉末と、メチルセルロース
の水溶液とを混合して粘度2000cpのスラリーを調
整し、基体として多孔度95%の発泡ニッケルからなる
金属多孔体を用意する。次いで、第1図及び第2図に示
した充填装置を用い、充填ローラーとして第3図に示す
ような外表面にローラーの回転方向に対して直角方向に
多数の溝状凹部を有すると共に、ローラーの外表面の凸
部の面積と凹部の面積が1:1の比率であるローラー、
及び前記溝状凹部のないローラーの2種類のローラーを
使用して、前記基体に前記スラノーを充填した。
(F) Examples Nickel hydroxide powder, which is an active material, and an aqueous solution of methylcellulose are mixed to prepare a slurry having a viscosity of 2000 cp, and a porous metal body made of nickel foam with a porosity of 95% is prepared as a base. Next, using the filling apparatus shown in FIGS. 1 and 2, the filling roller has a large number of groove-like recesses on the outer surface in a direction perpendicular to the rotation direction of the roller as shown in FIG. A roller having a ratio of 1:1 between the area of the convex portion and the area of the concave portion on the outer surface of the roller;
The substrate was filled with the slanow using two types of rollers: a roller without groove-shaped recesses, and a roller without groove-shaped recesses.

ここにおいて、基体の移動速度を一定とし、充填ローラ
ーの回転速度を変化させることによりローラーから基体
に供給するスラリー量を変化させて充填を行なったとき
のスラリー供給量と、スラリー充填率の関係を第4図に
示す。尚、スラリー供給量(比)は基体の空隙率から算
出される基体内部空間に100%スラリーを充填した場
合の理論的なスラリー量(g)に対する充填ローラーに
より基体に供給されるスラリー量(g)で表わし、また
、スラリー充填率は基体の前記内部空間の体積(cc)
に対する基体中に充填されたスラリーの占める体積(c
c)の割合で表わした。
Here, the relationship between the amount of slurry supplied and the slurry filling rate is calculated when filling is performed by keeping the moving speed of the substrate constant and changing the amount of slurry supplied from the roller to the substrate by changing the rotational speed of the filling roller. It is shown in Figure 4. The slurry supply amount (ratio) is the slurry amount (g) supplied to the substrate by the filling roller to the theoretical slurry amount (g) when the internal space of the substrate is filled with 100% slurry, which is calculated from the porosity of the substrate. ), and the slurry filling rate is expressed as the volume (cc) of the internal space of the substrate.
The volume occupied by the slurry filled in the substrate (c
c) Expressed as a percentage.

第4図から明らかなように、充填ローラーに溝のあるロ
ーラーを用いた場合においても、溝のないローラーを用
いた場合においても、何れもスラリー供給量が1,2〜
5の間では、スラリー充填量が多くなることがわかる。
As is clear from FIG. 4, whether the filling roller is a grooved roller or a non-grooved roller, the slurry supply amount is 1, 2 to 2.
It can be seen that between 5 and 5, the slurry filling amount increases.

また、充填ローラーとしては溝のあるローラーを用いた
場合の方が、溝のないローラーを用いた場合より全体的
にスラリー充填量が多くなっている。
Furthermore, when a roller with grooves is used as the filling roller, the overall amount of slurry filling is larger than when a roller without grooves is used.

次いで、前記スラリー、基体及び充填装置を用い、前記
スラリー供給量が3になるように基体の移動速度と充填
ローラの回転速度を設定して基体にスラリーを充填した
。第5図は、ここにおいて、充填ローラーとして前記溝
状凹部を有するローラー用い、このローラーの外表面に
おける凹部の面積に対する凸部の面積の値を変化させた
ときの前記スラリー充填量を示す図である。
Next, the slurry was filled into the substrate using the slurry, the substrate, and the filling device, and the moving speed of the substrate and the rotation speed of the filling roller were set so that the slurry supply amount was 3. FIG. 5 is a diagram showing the slurry filling amount when the roller having the groove-like recesses is used as the filling roller and the value of the area of the convex portions relative to the area of the recesses on the outer surface of the roller is changed. be.

第5図から、充填ローラーに溝状凹部を設け、凹部の面
積に対する凸部の面積の値が0.2以上、つまり175
以上になるとスラリー充填量を大きくできることがわか
る。
From FIG. 5, it can be seen that the filling roller is provided with a groove-like recess, and the value of the area of the convex part relative to the area of the recess is 0.2 or more, that is, 175.
It can be seen that the slurry filling amount can be increased when the amount is above.

(ト)発明の効果 本発明の電池用電極の製造方法及びその装置によれば、
複雑な構成の装置を用いることなしに、三次元金属多孔
体からなる基体に効率よく、高い充填率で且つ均一にス
ラリーを充填することができ、その工業的価値は極めて
大きい。
(g) Effects of the invention According to the method and apparatus for manufacturing electrodes for batteries of the present invention,
The slurry can be efficiently and uniformly filled into a substrate made of a three-dimensional metal porous body at a high filling rate without using a device with a complicated configuration, and its industrial value is extremely large.

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

第1図及び第2図は何れも本発明に係る電池電極の製造
装置の概略図、第3図は本発明に係る電池用電極の製造
装置に用いる充填ローラーの側面図、第4図はスラリー
供給量とスラリー充填率との関係を示す図、第5図は充
填ローラーの凹部の面積に対する凸部の面積の値とスラ
リー充填率との関係を示す図である。 l・・・基体、3・・・充填ローラー 5・・・活物質
スラリー 10・・・溝状凹部、11・・・凸部。
1 and 2 are both schematic diagrams of a battery electrode manufacturing apparatus according to the present invention, FIG. 3 is a side view of a filling roller used in the battery electrode manufacturing apparatus according to the present invention, and FIG. 4 is a slurry FIG. 5 is a diagram showing the relationship between the supply amount and the slurry filling rate, and FIG. 5 is a diagram showing the relationship between the area of the convex portion relative to the area of the concave portion of the filling roller and the slurry filling rate. 1... Substrate, 3... Filling roller 5... Active material slurry 10... Groove-shaped recessed part, 11... Convex part.

Claims (2)

【特許請求の範囲】[Claims] (1)三次元的に連続する空孔を有する金属多孔体を基
体とし、連続的に供給される該基体の空孔内に活物質粉
末を主成分とするスラリーを充填する方法であって、槽
内に満たされたスラリーに少なくとも一部浸漬するが完
全に没しない位置にローラーを設置し、該ローラーのス
ラリー内に没していない少なくとも一点で接するように
前記基体を導き、前記ローラーから前記基体へ供給する
スラリー量が前記基体の空隙率から算出されるスラリー
の充填量の1.2〜5倍となる速度で前記ローラーを回
転させ、前記スラリーを前記基体に充填することを特徴
とする電池用電極の製造方法。
(1) A method in which a porous metal body having three-dimensionally continuous pores is used as a base, and the pores of the base are filled with a slurry containing active material powder as a main component, which is continuously supplied, A roller is installed at a position where it is at least partially immersed in, but not completely immersed in, the slurry filled in the tank, and the substrate is guided so that it contacts the roller at least at one point that is not immersed in the slurry, and the substrate is removed from the roller. The roller is rotated at a speed such that the amount of slurry supplied to the substrate is 1.2 to 5 times the filling amount of slurry calculated from the porosity of the substrate, and the slurry is filled into the substrate. Method for manufacturing electrodes for batteries.
(2)三次元的に連続する空孔を有する金属多孔体を基
体とし、連続的に供給される該基体の空孔内に活物質粉
末を主成分とするスラリーを充填する装置であって、前
記基体を連続的に供給する手段と、前記スラリーを満た
した槽と、前記スラリーを前記基体に充填する充填ロー
ラーと、前記充填ローラーを回転駆動させる駆動装置と
を備え、前記充填ローラーは前記スラリー内に少なくと
も一部浸漬するが完全に没しない位置に配置され、前記
スラリー内に没していない少なくとも一点で前記基体に
接し、且つローラーの外周面において回転方向に対し直
角方向に多数の溝状凹部を有すると共に、ローラーの外
周面における凸部の面積が前記凹部の面積に対して1/
6以上であることを特徴とする電池用電極の製造装置。
(2) An apparatus that uses a porous metal body having three-dimensionally continuous pores as a base, and fills the pores of the base with a slurry containing active material powder as a main component, which is continuously supplied, It includes means for continuously supplying the substrate, a tank filled with the slurry, a filling roller for filling the substrate with the slurry, and a drive device for rotationally driving the filling roller, and the filling roller is configured to feed the slurry. a plurality of groove-shaped grooves arranged at least partially immersed in the slurry but not completely immersed in the slurry, in contact with the substrate at at least one point not immersed in the slurry, and in a direction perpendicular to the rotation direction on the outer peripheral surface of the roller; It has a concave portion, and the area of the convex portion on the outer peripheral surface of the roller is 1/1 of the area of the concave portion.
6 or more.
JP1108047A 1989-04-26 1989-04-26 Manufacture of battery electrode and device therefor Pending JPH02288067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1108047A JPH02288067A (en) 1989-04-26 1989-04-26 Manufacture of battery electrode and device therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1108047A JPH02288067A (en) 1989-04-26 1989-04-26 Manufacture of battery electrode and device therefor

Publications (1)

Publication Number Publication Date
JPH02288067A true JPH02288067A (en) 1990-11-28

Family

ID=14474584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1108047A Pending JPH02288067A (en) 1989-04-26 1989-04-26 Manufacture of battery electrode and device therefor

Country Status (1)

Country Link
JP (1) JPH02288067A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02297862A (en) * 1989-05-11 1990-12-10 Japan Storage Battery Co Ltd Manufacture of plate for lead storage battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02297862A (en) * 1989-05-11 1990-12-10 Japan Storage Battery Co Ltd Manufacture of plate for lead storage battery
JPH088098B2 (en) * 1989-05-11 1996-01-29 日本電池株式会社 Method for manufacturing electrode plate for lead acid battery

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