JPH11339791A - Electrode paste applying device - Google Patents
Electrode paste applying deviceInfo
- Publication number
- JPH11339791A JPH11339791A JP10144737A JP14473798A JPH11339791A JP H11339791 A JPH11339791 A JP H11339791A JP 10144737 A JP10144737 A JP 10144737A JP 14473798 A JP14473798 A JP 14473798A JP H11339791 A JPH11339791 A JP H11339791A
- Authority
- JP
- Japan
- Prior art keywords
- electrode paste
- current collector
- band
- slit
- shaped current
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はシート状電極用の電
極ペースト塗布装置に関する。The present invention relates to an electrode paste coating device for a sheet-like electrode.
【０００２】[0002]
【従来の技術】近年、カメラ一体型 VTR、ラップトップ
パソコン、携帯電話などの各種の電子機器の小型化、軽
量化に伴って、それらの電源として高エネルギー密度の
二次電池が要求されている。そして、このような要求に
対応して、たとえばニッケル化合物を正極活物質とし、
また、水素吸蔵合金を負極活物質とするニッケル水素二
次電池が開発され、実用化が進められている。2. Description of the Related Art In recent years, as various electronic devices such as a camera-integrated VTR, a laptop personal computer, and a mobile phone have become smaller and lighter, a secondary battery having a high energy density has been required as a power source for the electronic devices. . In response to such demands, for example, a nickel compound is used as a positive electrode active material,
Also, a nickel hydrogen secondary battery using a hydrogen storage alloy as a negative electrode active material has been developed and put into practical use.
【０００３】ところで、前記ニッケル水素二次電池が具
備する負極電極は、たとえばエキスバンドメタルのよう
な金網状もしくは多孔薄板状などの集電体に、負極活物
質としての水素吸蔵合金粉末を含む負極用電極ペースト
を塗布して製作している。すなわち、電極ペーストを収
容した電極ペースト槽を貫挿して帯状集電体を上方へ走
行させ、電極ペースト槽の走行・通過によって帯状集電
体面に電極ペーストを付着させる。その後、挟窄部およ
びこの挟窄部に連接して下方に広開するテーパ付きスリ
ットを有するスリット部材を貫挿させて、前記付着され
た電極ペーストの付着量を所定の厚さに制御する。ま
た、この電極ペースト塗布工程において、前記スリット
部材の下方に広開するテーパ付きスリットに、先端がそ
れぞれ走行・通過する帯状集電体面に摺接するように
（突設的に）配置した位置決めピンにより、帯状集電体
がテーパ付きスリットの中央部を走行・通過するように
位置決めを行っている（特開平9-171822号公報）。[0003] Incidentally, the negative electrode provided in the nickel-metal hydride secondary battery includes a negative electrode containing a hydrogen storage alloy powder as a negative electrode active material on a current collector such as a wire mesh or a porous thin plate such as an ex-band metal. It is manufactured by applying electrode paste. That is, the band-shaped current collector is made to travel upward by penetrating the electrode paste tank containing the electrode paste, and the electrode paste is attached to the surface of the band-shaped current collector by traveling and passing through the electrode paste tank. Thereafter, a slit member having a narrow portion and a tapered slit which is connected to the narrow portion and widens downward is inserted therethrough to control the amount of the deposited electrode paste to a predetermined thickness. Further, in this electrode paste application step, positioning pins are disposed (protrudingly) so as to be in sliding contact with the strip-shaped current collector surfaces on which the leading ends respectively run and pass through the tapered slits which widen below the slit members. In addition, positioning is performed so that the belt-shaped current collector travels and passes through the center of the tapered slit (Japanese Patent Application Laid-Open No. 9-117822).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記帯
状集電体面に電極ペーストを塗布する手段の場合は、次
のような問題がある。すなわち、帯状集電体面に電極ペ
ーストを塗布するに当たって、先ず、帯状集電体はスリ
ット部材の下方に位置する電極ペースト槽を貫挿・通過
し、電極ペーストの塗布（付着）膜厚が制御された後、
乾燥炉内を走行・通過して乾燥処理される。However, the means for applying an electrode paste to the surface of the belt-shaped current collector has the following problems. That is, in applying the electrode paste to the surface of the band-shaped current collector, first, the band-shaped current collector penetrates and passes through the electrode paste tank located below the slit member, and the applied (adhered) film thickness of the electrode paste is controlled. After
It travels and passes through the drying oven to be dried.
【０００５】ところで、前記電極ペースト槽を帯状集電
体が貫挿・通過する際、付着される電極ペーストの圧力
や乾燥炉内における帯状集電体の揺れなどにより、スリ
ット部材においても僅かながらの揺れが生じる。そし
て、このスリット部材における帯状集電体の揺れは、テ
ーパ付きスリットに配置されている位置決めピンと不所
望な接触を招来することになり、結果的に、帯状集電体
を傷つけたり、あるいは帯状集電体を破断したりするト
ラブルが発生する。つまり、常時、高品質の電極シート
を歩留まりよく製造することが困難で、生産性もしくは
製造コストにおいて問題があり、その改善策の開発が待
たれている。When the band-shaped current collector penetrates and passes through the electrode paste tank, a slight amount of pressure is applied to the electrode paste and the band-shaped current collector shakes in the drying furnace. Shaking occurs. Then, the swinging of the band-shaped current collector in the slit member causes undesired contact with the positioning pins arranged in the tapered slit, and as a result, the band-shaped current collector is damaged, or the band-shaped current collector is damaged. Troubles such as breaking of the electric body occur. That is, it is always difficult to manufacture a high-quality electrode sheet with high yield, and there is a problem in productivity or manufacturing cost, and development of an improvement measure is awaited.
【０００６】本発明は、上記事情に対処してなされたも
ので、一様な電極ペースト膜の塗布（塗着）形成が可能
で、かつ高品質なシート状電極を歩留まりよく提供でき
る電極ペースト塗布装置の提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is capable of forming a uniform electrode paste film (coating) and providing a high quality sheet-shaped electrode with good yield. The purpose is to provide the device.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明は、電極
ペーストを収容する電極ペースト槽と、前記電極ペース
ト槽を貫挿して帯状集電体を上方へ走行させる帯状集電
体走行機構と、前記電極ペースト槽の通過により帯状集
電体面に付着された電極ペーストの付着量を所定の厚さ
に制御する挟窄部および挟窄部に連接して下方に広開す
るテーパ付きスリットを有するスリット部材と、前記ス
リット部材のテーパ付きスリットのほぼ中央部に対向さ
せ、走行する帯状集電体面に対して先端部が所定のクリ
アランスを採るように突設配置されて走行する帯状集電
体の位置決めを行う複数対の位置決めピンと、を備えて
いることを特徴とする電極ペースト塗布装置である。According to the present invention, there is provided an electrode paste tank for storing an electrode paste, and a belt-like current collector traveling mechanism for penetrating the electrode paste tank and traveling the belt-like current collector upward. A narrowing portion for controlling the amount of electrode paste deposited on the surface of the belt-shaped current collector by passing through the electrode paste tank to a predetermined thickness, and a tapered slit which is connected to the narrowing portion and widens downward to open. The slit member and the traveling band-shaped current collector are disposed so as to be opposed to the substantially central portion of the tapered slit of the slit member, and the leading end portion is protruded from the traveling band-shaped current collector surface so as to take a predetermined clearance. An electrode paste application device, comprising: a plurality of pairs of positioning pins for performing positioning.
【０００８】請求項２の発明は、請求項１記載の電極ペ
ースト塗布装置において、位置決めピンの対向先端面が
平坦でかつ帯状集電体の走行方向が長辺の矩形を成して
いることを特徴とする。According to a second aspect of the present invention, in the electrode paste coating apparatus according to the first aspect, the opposed end faces of the positioning pins are flat and the running direction of the belt-shaped current collector forms a rectangle with long sides. Features.
【０００９】請求項１および２の発明において、帯状集
電体としては、アルミニウム、銅、ニッケル、チタン、
ステンレスなどの金属箔が挙げられる。また、これら帯
状集電体の形態は、無孔なシート、孔あきシート、ネッ
ト状（網状）シートなどであり、その厚さは20〜50μm
とすることが好ましい。In the first and second aspects of the present invention, the belt-shaped current collector includes aluminum, copper, nickel, titanium,
Metal foil such as stainless steel may be used. Further, the form of these band-shaped current collectors is a non-porous sheet, a perforated sheet, a net-like (net-like) sheet, and the like, and the thickness is 20 to 50 μm.
It is preferable that
【００１０】請求項１および２の発明において、電極ペ
ーストの付着量を所定の厚さに制御するスリット部材
は、最終的に所定の厚さに制御・規制する挟窄部と、こ
の挟窄部に連接して下方（帯状集電体の挿入方向）に広
開するテーパ付きスリットとを有する構造と成ってい
る。ここで、テーパ付きスリットの広開テーパは、挟窄
部に対して15〜60°程度である。According to the first and second aspects of the present invention, the slit member for controlling the amount of the electrode paste to be applied to a predetermined thickness includes a constricted portion for finally controlling and regulating the amount of the electrode paste to a predetermined thickness, and the confined portion. And a tapered slit that widens downward (in the direction of insertion of the belt-shaped current collector) so as to be connected to the slit. Here, the wide open taper of the tapered slit is about 15 to 60 ° with respect to the pinched portion.
【００１１】また、前記テーパ付きスリット面に、ほぼ
水平方向に互いに先端部を対向させ並列配設される複数
対の位置決めピンは、テーパ付きスリットを走行・通過
する帯状集電体の各主面に対しクリアランスを有するよ
うに設定される。つまり、位置決めピンの先端部が、常
時、帯状集電体面に対して非摺接な状態を保持できるよ
うに、特に、並列的に配設されている必要がある。ここ
で、帯状集電体の各主面に対するクリアランスは、帯状
集電体の材質、構造、厚さなどにもよるが、一般的には
0.1mm〜 0.5mm程度である。なお、前記置決めピンの先
端を平坦面とし、かつその形状を帯状集電体が走行する
方向を長辺とする矩形とした場合は、さらに安定的な位
置決めを行える。A plurality of pairs of positioning pins, which are disposed in parallel on the tapered slit surface with their distal ends opposed to each other in a substantially horizontal direction, are provided on each main surface of the belt-shaped current collector running and passing through the tapered slit. Is set to have a clearance. In other words, it is necessary that the positioning pins are arranged in parallel so that the tips of the positioning pins can always be kept in non-sliding contact with the surface of the belt-shaped current collector. Here, the clearance of each main surface of the band-shaped current collector depends on the material, structure, thickness, and the like of the band-shaped current collector.
It is about 0.1mm to 0.5mm. If the tip of the positioning pin is a flat surface and its shape is a rectangle whose long side is the direction in which the belt-shaped current collector travels, more stable positioning can be performed.
【００１２】なお、請求項１および２の発明において、
電極ペースト槽、帯状集電体走行機構などの構造ないし
構成は、従来使用されているものであり、また、一般的
に、電極ペースト供給機構、帯状集電体の巻き戻し・巻
き取り機構、塗布膜の乾燥炉などが付設される。Incidentally, in the first and second aspects of the present invention,
The structures and configurations of the electrode paste tank, the belt-like current collector running mechanism, and the like are those conventionally used. In general, the electrode paste supply mechanism, the unwinding / rewinding mechanism of the belt-like current collector, and the coating are used. A drying oven for the membrane is provided.
【００１３】請求項１の発明では、電極ペーストが付着
（塗布）され走行する帯状集電体の位置決めピン対が、
前記帯状集電体面に対してある程度のクリアランスを保
持している。したがって、たとえば電極ペースト槽にお
ける電極ペーストの圧力や、塗布後の乾燥炉内における
帯状集電体の揺れなどの影響を受けても、前記位置決め
ピン先端と帯状集電体面とが摺接ないし摺動する恐れが
解消される。すなわち、前記位置決めピンによって帯状
集電体面が摩擦損傷したり、あるいは位置決めピンの引
っ掛かりによって帯状集電体が破断するようなトラブル
発生が全面的に回避・解消される。According to the first aspect of the present invention, the positioning pin pair of the strip-shaped current collector on which the electrode paste is attached (applied) and travels,
A certain amount of clearance is maintained with respect to the belt-shaped current collector surface. Therefore, even if the pressure of the electrode paste in the electrode paste tank or the fluctuation of the band-shaped current collector in the drying furnace after the application is affected, the tip of the positioning pin and the surface of the band-shaped current collector slide or slide. The fear of doing is eliminated. That is, the occurrence of troubles such as the frictional damage of the belt-like current collector surface caused by the positioning pin or the breakage of the belt-like current collector due to the catching of the positioning pin is completely avoided or eliminated.
【００１４】請求項２の発明では、前記置決めピンの先
端が平坦面で、かつ帯状集電体が走行する方向を長辺と
する矩形に設定されている。したがって、帯状集電体面
に対する電極ペーストの流れや一様な付着性などを良好
に保持しながら、一方では、位置決めに作用する面が比
較的大きく設定されているので、より安定的な位置決め
が行われる。According to the second aspect of the present invention, the tip of the positioning pin is a flat surface, and the rectangular shape is set to have a long side in a traveling direction of the belt-shaped current collector. Therefore, while maintaining good flow of the electrode paste and uniform adhesion to the surface of the belt-shaped current collector, on the other hand, the surface acting for positioning is set relatively large, so that more stable positioning can be performed. Will be
【００１５】[0015]
【発明の実施の形態】以下、図１，図２および図３を参
照して実施例を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to FIGS. 1, 2 and 3. FIG.
【００１６】図１は、実施例に係る電極ペースト塗布装
置の概略構成を示す断面図、図２はスリット部の構成を
拡大して示す断面図である。図１において、１は電極ペ
ースト２を収容する電極ペースト槽、３は前記電極ペー
スト槽１を貫挿して上方へ走行する帯状集電体であり、
この帯状集電体３は図示を省略した帯状集電体走行機構
によって、たとえば巻き戻しローラから巻き戻され、乾
燥処理された後に巻き取りローラに巻き取られる。ここ
で、電極ペースト槽１は、たとえばステンレス鋼製の長
さ 150mm〜 500mm程度，幅 300mm〜 800mm程度，深さの
100mm〜 300mm程度の容器である。そして、この容器１
の底壁部には、帯状集電体３が貫挿して上方へ走行でき
る走行路としての隙間1aが設けられ、さらに、この走行
路1aは、帯状集電体３の貫挿・走行が液密に行えるよう
に、シール1b処理が施されている。 また、４はスリッ
ト部材であり、図２に拡大して示すような構成と成って
いる。すなわち、前記電極ペースト槽１の通過により帯
状集電体３面に付着された電極ペースト２の付着量を所
定の厚さに制御する挟窄部4aおよび挟窄部4aに連接して
下方に広開するテーパ付きスリット4bを有するスリット
部材である。ここで、スリット部材４は、たとえばステ
ンレス鋼製の厚さ10mm〜50mm程度の板状で、一主面側に
長さ 150mm〜 500mm程度，幅 0.1mm〜 3.0mm程度，深さ
の 0.1mm〜 5.0mm程度の挟窄部（スリット）4aが、ま
た、この挟窄部4aに端部が連接し、他主面側に15〜60°
程度の角度で下方に広開するテーパが付いている。FIG. 1 is a sectional view showing a schematic structure of an electrode paste coating apparatus according to an embodiment, and FIG. 2 is an enlarged sectional view showing a structure of a slit portion. In FIG. 1, reference numeral 1 denotes an electrode paste tank for containing an electrode paste 2, and 3 denotes a band-shaped current collector that passes through the electrode paste tank 1 and travels upward.
The belt-like current collector 3 is unwound from, for example, a rewind roller by a belt-like current collector traveling mechanism (not shown), is dried, and is wound around a take-up roller. Here, the electrode paste tank 1 is made of, for example, stainless steel having a length of about 150 mm to 500 mm, a width of about 300 mm to 800 mm, and a depth of about 300 mm to 800 mm.
It is a container of about 100mm to 300mm. And this container 1
A gap 1a is provided on the bottom wall as a traveling path through which the belt-like current collector 3 can penetrate and travel upward. Further, this traveling path 1a is used for the penetration and traveling of the belt-like current collector 3 by the liquid. The seal 1b treatment is performed so as to be able to perform densely. Reference numeral 4 denotes a slit member, which has a configuration as shown in an enlarged manner in FIG. That is, a narrowing portion 4a for controlling the amount of the electrode paste 2 deposited on the surface of the belt-like current collector 3 by passing through the electrode paste tank 1 to a predetermined thickness, and a narrowing portion connected to the narrowing portion 4a and spreading downward. It is a slit member having a tapered slit 4b that opens. The slit member 4 is, for example, a plate made of stainless steel and having a thickness of about 10 mm to 50 mm, and has a length of about 150 mm to 500 mm, a width of about 0.1 mm to 3.0 mm, and a depth of 0.1 mm to A squeezed portion (slit) 4a of about 5.0 mm and an end connected to the squeezed portion 4a and 15 to 60 ° on the other main surface side
It has a taper that widens downward at a moderate angle.
【００１７】さらに、５は前記スリット部材４のテーパ
付きスリット4bのほぼ中央部に対向させ、走行する帯状
集電体３面に対して、先端部が所定のクリアランス６を
採るように突設配置されて走行する帯状集電体３の位置
決めを行う複数対の位置決めピンである。ここで、位置
決めピン５は、テーパ付きスリット4b面に、一体的に植
立（突設）させた先端が平坦面を成す径 2〜10mm程度の
円柱状もしくは角柱状の突起であり、ほぼ10〜50mm程度
の間隔で、かつ対向して設置されている。また、この位
置決めピン５と帯状集電体３面とのクリアランス６は、
0.1〜 0.5mm程度で、かつほぼ一様に設定されている。Further, reference numeral 5 is disposed so as to face substantially the center of the tapered slit 4b of the slit member 4 and project from the surface of the running belt-shaped current collector 3 so that the tip has a predetermined clearance 6. It is a plurality of pairs of positioning pins for positioning the strip-shaped current collector 3 that is moved. Here, the positioning pin 5 is a columnar or prismatic projection having a diameter of about 2 to 10 mm and having a flat surface with a tip integrally formed (projected) integrally on the surface of the tapered slit 4b. They are installed facing each other at intervals of about 50 mm. The clearance 6 between the positioning pin 5 and the surface of the belt-like current collector 3 is
It is set to about 0.1 to 0.5 mm and almost uniformly.
【００１８】次に、上記電極ペースト塗布装置の使用例
を説明する。Next, an example of use of the above-mentioned electrode paste coating apparatus will be described.
【００１９】電極ペースト槽１を液密に貫挿・走行でき
るように、SPCCにニッケルメッキを施したパンチドメタ
ルからなる帯状集電体３を配置する一方、電極ペースト
槽１内にニッケル水素二次電池の負極用ペースト２を収
容した。ここで、電極ペーストは、ランタンニッケル系
水素吸蔵合金粉末 100重量部当たり、カルボキシメチル
セルロース 0.2〜 0.5重量部、ポリアクリル酸ソーダ
0.3〜 0.6重量部、カーボン粉末 1〜 3重量部、ポリテ
トラフルオロエチレン 1〜 5重量部、および水40〜60重
量部を撹拌・混練して調製したものである。The SPCC is provided with a strip-shaped current collector 3 made of punched metal plated with nickel so that the electrode paste tank 1 can be inserted and run in a liquid-tight manner. The paste 2 for the negative electrode of the next battery was accommodated. Here, the electrode paste is 0.2 to 0.5 parts by weight of carboxymethylcellulose, 100 parts by weight of lanthanum nickel-based hydrogen storage alloy powder, and sodium polyacrylate.
It is prepared by stirring and kneading 0.3 to 0.6 parts by weight, 1 to 3 parts by weight of carbon powder, 1 to 5 parts by weight of polytetrafluoroethylene, and 40 to 60 parts by weight of water.
【００２０】次いで、前記帯状集電体３を走行させ、電
極ペースト槽１の上方に設置されているスリット部材４
によって、位置決めがなされながら帯状集電体３両面
に、制御された膜厚の電極ペースト２層が付着される。
すなわち、帯状集電体３は、電極ペースト槽１の電極ペ
ースト２中を貫挿・走行するとき、帯状集電体３両面に
電極ペースト２が過剰に付着するが、スリット部材４の
テーパ付きスリット4bを通過・走行する段階で、前記付
着量が大幅に制御されて、挟窄部4aにおいて所定の塗膜
厚に制御される。Next, the belt-shaped current collector 3 is run, and the slit member 4 installed above the electrode paste tank 1 is moved.
As a result, two layers of electrode paste having a controlled film thickness are attached to both surfaces of the belt-shaped current collector 3 while being positioned.
That is, when the band-shaped current collector 3 penetrates and runs through the electrode paste 2 of the electrode paste tank 1, the electrode paste 2 excessively adheres to both surfaces of the band-shaped current collector 3. At the stage of passing and running through 4b, the amount of adhesion is largely controlled, and the coating thickness is controlled to a predetermined thickness at the pinching portion 4a.
【００２１】この間、スリット部材４のテーパ付きスリ
ット4bに突設された位置決めピン６の対によって、走行
する帯状集電体３は位置決めされるので、帯状集電体３
の両面には全体的に一様な電極ペーストの付着が行われ
る。しかも、この位置決めピン６は、走行する帯状集電
体３の各面に対して、一定のクリアランスを有するた
め、走行する帯状集電体３の若干の揺れがあっても、位
置決めピン６と帯状集電体３面との摺接を起こさずに、
所定の走行が行われる。During this time, the traveling band-shaped current collector 3 is positioned by the pair of positioning pins 6 projecting from the tapered slit 4b of the slit member 4, so that the band-shaped current collector 3 is moved.
Is uniformly applied to both surfaces of the electrode paste. In addition, since the positioning pin 6 has a certain clearance with respect to each surface of the traveling band-shaped current collector 3, even if the traveling band-shaped current collector 3 slightly shakes, the positioning pin 6 and the band-shaped Without causing sliding contact with the current collector 3 surface,
A predetermined traveling is performed.
【００２２】また、この位置決めピン６を走行・通過し
た後に、挟窄部4aでさらに制御されるので、全体的にほ
ぼ一様な塗布厚が容易に形成される。そして、塗布膜の
形成後、帯状集電体３は乾燥路内を通過・走行する段階
で、塗布膜の乾燥が行われて、膜厚や活物質層構成がほ
ぼ均一な負極シートが得られた。Further, after the positioning pin 6 has traveled and passed, it is further controlled by the pinching portion 4a, so that a substantially uniform coating thickness can be easily formed as a whole. After the formation of the coating film, the band-shaped current collector 3 is dried and dried at the stage of passing and running in the drying path, and a negative electrode sheet having a substantially uniform thickness and active material layer configuration is obtained. Was.
【００２３】なお、上記電極ペースト塗布装置は、 7日
間連続運転（連続塗布）後においても、膜厚や活物質層
構成がほぼ均一な電極シートが得られた。また、上記電
極ペースト塗布装置の構成において、図３に拡大して斜
視的に示すように、位置決めピン６の平坦な対向面を、
帯状集電体３の走行方向を長辺とする矩形（たとえば0.
5× 6mm程度）に設定した場合は、電極ペースト２の付
着性ないし塗布性などを損なわずに、帯状集電体３の位
置決めを容易に行える。The electrode paste coating apparatus obtained an electrode sheet having a substantially uniform film thickness and active material layer structure even after continuous operation (continuous coating) for 7 days. Further, in the configuration of the electrode paste coating device, as shown in an enlarged perspective view in FIG.
A rectangle whose long side is the running direction of the belt-shaped current collector 3 (for example, 0.
When set to about 5 × 6 mm, the band-shaped current collector 3 can be easily positioned without impairing the adhesion or applicability of the electrode paste 2.
【００２４】なお、本発明は、上記実施例に限定される
ものでなく、発明の趣旨を逸脱しない範囲でいろいろの
変形を採ることができる。また、ニッケル水素二次電池
用の電極ペーストの塗布の他、たとえばリチウム電池用
の電極ペーストの塗布ないし付着（塗工）などにも適用
できる。The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention. In addition to the application of the electrode paste for the nickel-metal hydride secondary battery, the present invention can be applied to, for example, the application or adhesion (coating) of the electrode paste for the lithium battery.
【００２５】[0025]
【発明の効果】上記説明から分かるように、請求項１お
よび請求項２の発明によれば、金属集電体の損傷などを
招来せずに、高品質のシート状の電極を量産的、かつ歩
留まりよく提供することができる。As can be seen from the above description, according to the first and second aspects of the present invention, high-quality sheet-shaped electrodes can be mass-produced without causing damage to the metal current collector. Good yields can be provided.
【図１】実施例に係る電極ペーストの塗工装置の概略構
成を示す断面図。FIG. 1 is a sectional view showing a schematic configuration of an electrode paste coating apparatus according to an embodiment.
【図２】実施例に係る電極ペーストの塗工装置のスリッ
ト部材の構成を拡大して示す断面図。FIG. 2 is an enlarged cross-sectional view showing a configuration of a slit member of the electrode paste coating apparatus according to the embodiment.
【図３】実施例に係る電極ペーストの塗工装置のスリッ
ト部材に突設する位置決めピンの異なる構成例を拡大し
て示す斜視図。FIG. 3 is an enlarged perspective view showing a different configuration example of a positioning pin protruding from a slit member of the electrode paste coating apparatus according to the embodiment.
１……電極ペースト槽 ２……電極ペースト ３……帯状集電体 ４……スリット部材 4a……狭窄部（塗膜厚規制） 4b……テーパー付きスリット ５……位置決めピン ６……クリアランス DESCRIPTION OF SYMBOLS 1 ... Electrode paste tank 2 ... Electrode paste 3 ... Strip-shaped current collector 4 ... Slit member 4a ... Stenosis part (coating thickness regulation) 4b ... Slit with taper 5 ... Positioning pin 6 ... Clearance
Claims (2)
と、 前記電極ペースト槽を貫挿して帯状集電体を上方へ走行
させる帯状集電体走行機構と、 前記電極ペースト槽の通過により帯状集電体面に付着さ
れた電極ペーストの付着量を所定の厚さに制御する挟窄
部および挟窄部に連接して下方に広開するテーパ付きス
リットを有するスリット部材と、 前記スリット部材のテーパ付きスリットのほぼ中央部に
対向させ、走行する帯状集電体面に対して先端部が所定
のクリアランスを採るように突設配置されて走行する帯
状集電体の位置決めを行う複数対の位置決めピンと、を
備えていることを特徴とする電極ペースト塗布装置。1. An electrode paste tank for containing an electrode paste, a band current collector running mechanism for penetrating the electrode paste tank and running the band current collector upward, and a band current collector passing through the electrode paste tank. A slit member having a squeezed portion for controlling the amount of the electrode paste attached to the body surface to a predetermined thickness, and a slit member having a tapered slit connected to the squeezed portion and widened downward, and a tapered slit of the slit member And a plurality of pairs of positioning pins for positioning the traveling band-shaped current collector, which is disposed so as to protrude from the surface of the traveling band-shaped current collector so as to take a predetermined clearance with respect to the traveling band-shaped current collector surface. An electrode paste coating device, comprising:
つ帯状集電体の走行方向が長辺の矩形を成していること
を特徴とする請求項１記載の電極ペースト塗布装置。2. The electrode paste coating device according to claim 1, wherein the opposing tip surfaces of the positioning pins are flat and the running direction of the belt-like current collector is a long side rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10144737A JPH11339791A (en) | 1998-05-26 | 1998-05-26 | Electrode paste applying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10144737A JPH11339791A (en) | 1998-05-26 | 1998-05-26 | Electrode paste applying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11339791A true JPH11339791A (en) | 1999-12-10 |
Family
ID=15369185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10144737A Withdrawn JPH11339791A (en) | 1998-05-26 | 1998-05-26 | Electrode paste applying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11339791A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1879246A1 (en) * | 2005-04-25 | 2008-01-16 | Matsushita Electric Industrial Co., Ltd. | Electrode mixture paste applying method and applicator |
-
1998
- 1998-05-26 JP JP10144737A patent/JPH11339791A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1879246A1 (en) * | 2005-04-25 | 2008-01-16 | Matsushita Electric Industrial Co., Ltd. | Electrode mixture paste applying method and applicator |
| EP1879246A4 (en) * | 2005-04-25 | 2011-02-16 | Panasonic Corp | Electrode mixture paste applying method and applicator |
| US8132527B2 (en) | 2005-04-25 | 2012-03-13 | Panasonic Corporation | Apparatus for applying electrode mixture paste with homogeneous distribution of coating amount of electrode mixture paste |
| US8475876B2 (en) | 2005-04-25 | 2013-07-02 | Panasonic Corporation | Apparatus for applying electrode mixture paste with homogeneous distribution of coating amount of electrode mixture paste |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050802 |