JP2014072114A - Roll press facility for electrode material and manufacturing method of electrode sheet - Google Patents

Roll press facility for electrode material and manufacturing method of electrode sheet Download PDF

Info

Publication number
JP2014072114A
JP2014072114A JP2012219067A JP2012219067A JP2014072114A JP 2014072114 A JP2014072114 A JP 2014072114A JP 2012219067 A JP2012219067 A JP 2012219067A JP 2012219067 A JP2012219067 A JP 2012219067A JP 2014072114 A JP2014072114 A JP 2014072114A
Authority
JP
Japan
Prior art keywords
sheet
roll
press
width direction
slitter
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
Application number
JP2012219067A
Other languages
Japanese (ja)
Other versions
JP5228133B1 (en
Inventor
Kenichiro Tada
健一郎 多田
Kenichi Watanabe
健一 渡辺
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.)
Hitachi Power Solutions Co Ltd
Original Assignee
Hitachi Power Solutions 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 Hitachi Power Solutions Co Ltd filed Critical Hitachi Power Solutions Co Ltd
Priority to JP2012219067A priority Critical patent/JP5228133B1/en
Application granted granted Critical
Publication of JP5228133B1 publication Critical patent/JP5228133B1/en
Priority to CN201310438260.2A priority patent/CN103715390B/en
Publication of JP2014072114A publication Critical patent/JP2014072114A/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • H01M4/0435—Rolling or calendering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • H01M10/0409—Machines for assembling batteries for cells with wound electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a roll press facility for en electrode material which is capable of preventing non-coated parts from being creased or cracked at a low cost and with a little man-hour in the case where even a sheet including a plurality of coated parts and non-coated parts so as to extend in a length direction of a base material (a conductive foil such as an aluminum foil or a copper foil) is roll-pressed, and capable of preventing a conveying speed of a plurality of divided sheets from being varied or being slackened.SOLUTION: A roll press facility for an electrode material comprises: a feed-out machine 1 for feeding out a sheet 10 in which a plurality of coated parts of an active substance are formed on a surface of a base material while extending in a length direction of the base material and at intervals in a width direction; and paired press rolls 2 for compressing the coated parts in the process of conveying the sheet 10 closer to a wind-up machine 3 via a plurality of guide rolls 50. Between the press rolls 2 and a guide roll 50' closest to the press rolls 2 among the guide rolls 50 at a downstream side of the press rolls, a slitter 6 is provided which is formed from a plurality of cutting blades for cutting the sheet at least at a position between the substance coated parts in the sheet 10.

Description

本発明は、例えば、アルミ箔、銅箔など導電材料よりなる長尺の基材の一面又は両面に電極材料となる活物質を塗工してなるシートを、製造ラインにて搬送、巻取ると共に、搬送過程で活物質を対のプレスロールにて連続的に圧縮加工する電極材料用ロールプレス設備、及び電極シートの製造方法に関する。特に、基材に長手方向に延びる複数本の活物質塗工部を、基材の幅方向に間隔をおいて形成したシートを、少なくとも活物質塗工部間の各位置（活物質非塗工部）で切断して、シートを複数本の電極シートに分断するスリット技術に関する。   In the present invention, for example, a sheet formed by applying an active material to be an electrode material on one or both sides of a long base material made of a conductive material such as aluminum foil or copper foil is conveyed and wound on a production line. In addition, the present invention relates to a roll press facility for an electrode material that continuously compresses an active material with a pair of press rolls in a conveying process, and an electrode sheet manufacturing method. In particular, a sheet in which a plurality of active material coating portions extending in the longitudinal direction on the base material are formed at intervals in the width direction of the base material, at least each position between the active material coating portions (active material non-coating) Part) and a slit technique for dividing the sheet into a plurality of electrode sheets.

リチウムイオン電池、キャパシタ等の正極や負極の電極は、製造過程では、元々は、アルミ箔、銅箔などの長尺の基材の一面または両面に活物質を塗工したシートよりなる。このシートが、製造工程にて、ロールプレス設備を通され、活物質の密度を上げ且つ均一の厚みとなるように、活物質塗工部（以下、塗工部と称する）がロールプレス（圧縮加工）される。このロールプレス後に、シートは、巻取機にコイル状に巻取られ、巻取りコイルが電極材料製品として出荷または次工程に移送される。また、電極の製造効率を高めるために、基材上にその長手方向に延びる塗工部を、基材の幅方向に間隔をおいて複数本形成したシートを、プレスロールに通して、複数本の塗工部を一度にロールプレスし、シートの搬送過程で、複数の切断刃を有するスリッターを用いて、シートを分断する技術が提案されている。分断は、各塗工部間の活物質非塗工部（以下、非塗工部と称する）の幅方向中心位置と各塗工部の幅方向中心位置で切断することで行われる。複数本に分断された後の電極シートは、塗工部の領域と、塗工部に沿って電極シートの幅方向片側に偏在する非塗工部の領域とからなる。塗工部は、電極として、非塗工部は、集電用タブを取り付けるために使用される。   In the manufacturing process, a positive electrode or a negative electrode such as a lithium ion battery or a capacitor is originally made of a sheet obtained by coating an active material on one or both sides of a long base material such as an aluminum foil or a copper foil. The active material coating part (hereinafter referred to as the coating part) is roll-pressed (compressed) so that this sheet is passed through a roll press facility in the manufacturing process to increase the density of the active material and to have a uniform thickness. Processed). After the roll press, the sheet is wound into a coil by a winder, and the wound coil is shipped as an electrode material product or transferred to the next process. Further, in order to increase the production efficiency of the electrodes, a plurality of sheets are formed by passing a sheet of a plurality of coated portions extending in the longitudinal direction on the base material at intervals in the width direction of the base material through a press roll. A technique has been proposed in which the coating part is roll-pressed at a time and the sheet is divided using a slitter having a plurality of cutting blades in the sheet conveyance process. The division is performed by cutting at the center position in the width direction of the active material non-coating part (hereinafter referred to as non-coating part) between the coating parts and the center position in the width direction of each coating part. The electrode sheet after being divided into a plurality of pieces is composed of a coated portion region and a non-coated portion region that is unevenly distributed along one side of the electrode sheet in the width direction along the coated portion. The coated part is used as an electrode, and the non-coated part is used for attaching a current collecting tab.

活物質を塗工したシートをロールプレスにかけると、塗工部だけが加圧されて延びが生じ、そのため非塗工部との間に歪が生じて塗工部と非塗工部間に皺が生じる。特に、複数本の塗工部が形成されているシートをロールプレスにかけると、非塗工部とその両隣りの塗工部との間で歪が生じ、その結果、皺がクロスして深い皺、特に非塗工部の中心位置に深い皺が生じ易い。図３は、そのような皺が生じたシートの模式図を示すものである。図３は、複数本の塗工部１１が幅方向に所定の間隔をあけて形成されているシート１０のロールプレス後の一部を示す平面図である。図３に示すように、シート１０の幅方向の両側と各塗工部１１間に非塗工部１２の領域が確保されている。そして、図３によれば、ロールプレス後に非塗工部１２に生じる皺１３のうち、塗工部１１が両隣りにある非塗工部１２の領域（すなわち塗工部１１間の非塗工部領域）の中心位置にある皺がシートの深く且つ長手方向に走っている。   When a sheet coated with an active material is subjected to a roll press, only the coated part is pressurized and stretched, causing distortion between the non-coated part and the coated part and the non-coated part. A habit occurs. In particular, when a sheet on which a plurality of coating parts are formed is subjected to a roll press, distortion occurs between the non-coating part and the coating part adjacent to both sides, and as a result, the wrinkles cross and deep Wrinkles, particularly deep wrinkles tend to occur at the center position of the non-coated portion. FIG. 3 shows a schematic diagram of a sheet with such wrinkles. FIG. 3 is a plan view showing a part after the roll pressing of the sheet 10 in which a plurality of coating portions 11 are formed at predetermined intervals in the width direction. As shown in FIG. 3, a region of the non-coated portion 12 is secured between both sides in the width direction of the sheet 10 and each coated portion 11. And according to FIG. 3, the area | region (namely, non-coating between the coating parts 11) of the non-coating part 12 which the coating part 11 adjoins among the wrinkles 13 which arise in the non-coating part 12 after roll press. The wrinkles at the center position of the part region run deep and longitudinally of the sheet.

かような皺は、ロールプレス後の巻取機に至る搬送過程で進行して亀裂となり、その結果、シートの搬送不能を招く原因となる。   Such wrinkles progress in the conveyance process to the winder after the roll press and become cracks. As a result, the sheet cannot be conveyed.

このような問題を解決するために、従来より、種々の解決策が提案されている。   In order to solve such a problem, various solutions have been conventionally proposed.

例えば、特許文献１（特表２０１０／２６７８４号公報）では、シートを各塗工部の間（非塗工部）で分断する第１切断工程を、シート（塗工部）をロールプレスにかける前に行って、非塗工部に生じる皺の度合いや進行を抑制する技術が提案されている。   For example, in patent document 1 (Japanese translations of PCT publication No. 2010/26784 gazette), the sheet | seat (coating part) is applied to a roll press for the 1st cutting process which divides | segments a sheet | seat between each coating part (non-coating part). A technique has been proposed that is performed before and suppresses the degree and progress of wrinkles generated in the non-coated portion.

また、特許文献２（特開２００５−１９０７８７号公報）では、長尺上の金属箔からなる集電体上に集電体と略同一幅を有し且つ任意のパターンの開口部を有する被覆シートよりなる被覆層を形成し、この被覆層によって一部が被覆された集電体上全面に、活物質層を塗設してなる積層体を形成する。この積層体を、被覆層及び被覆層上の活物質層を剥離し、また剥離工程の前及び／又は後に、ロールプレスにかけるようにしている。この技術では、被覆シートの長手方向に配列された開口部によって、被覆シートの剥離後は、活物質層（塗工部）が集電体の長手方向に間隔を置いて設けられるので、集電体の横断方向、すなわち幅方向に非塗工部（被覆シートで覆われていた部分）が延びるように形成される。その結果、ロールプレスを行う際に、非塗工部では集電体の横断方向に均一な圧力がかかり、非塗工部に皺や亀裂が発生しにくい。   Moreover, in patent document 2 (Unexamined-Japanese-Patent No. 2005-190787), the covering sheet | seat which has the opening part of arbitrary patterns which has the substantially same width as a collector on the collector which consists of elongate metal foil. A laminated body is formed by coating the active material layer on the entire surface of the current collector partially covered with the coating layer. The laminate is peeled off from the covering layer and the active material layer on the covering layer, and is subjected to a roll press before and / or after the peeling step. In this technique, the active material layer (coating part) is provided at intervals in the longitudinal direction of the current collector after the covering sheet is peeled off by the openings arranged in the longitudinal direction of the covering sheet. It is formed so that a non-coating part (part covered with the covering sheet) extends in the transverse direction of the body, that is, in the width direction. As a result, when performing roll press, a uniform pressure is applied in the transverse direction of the current collector in the non-coated portion, and wrinkles and cracks are unlikely to occur in the non-coated portion.

特表２０１０／２６７８４号公報Special Table 2010/26784 特開２００５−１９０７８７号公報JP 2005-190787 A

特許文献１、２に開示される技術は、複数の塗工部と非塗工部を有するシートをロールプレスにかけた場合の非塗工部に生じる皺や亀裂発生を抑制するために有効である。ただし、特許文献１のように、シートをロールプレスにかける前に、各塗工部の間（非塗工部）で分断する手法では、分断されたそれぞれのシートを共通のプレスロールに通す過程で、分断シート間で塗工部の厚みにばらつきがあったり、プレスロールの軸方向（シートの幅方向）の荷重にばらつきが生じると、分断シート間の搬送速度にばらつきが生じ、その中で、搬送速度の遅い一部の分断シートにたるみが生じ搬送不具合が生じるおそれがある。特に近年のように、生産効率及び活物質の高密度化が益々要求され、その結果、高速巻取りやロールプレスの高荷重化されるロールプレスでは、そのような問題が生じる可能性が高くなる。   The techniques disclosed in Patent Documents 1 and 2 are effective for suppressing wrinkles and cracks generated in a non-coated part when a sheet having a plurality of coated parts and a non-coated part is subjected to a roll press. . However, as in Patent Document 1, before the sheet is subjected to a roll press, in the method of dividing between each coated part (non-coated part), the process of passing each divided sheet through a common press roll In the case where there is a variation in the thickness of the coating part between the divided sheets or a variation in the load in the axial direction of the press roll (the width direction of the sheet), the conveying speed varies between the divided sheets. Further, there is a possibility that some of the divided sheets having a low conveyance speed may sag and a conveyance failure may occur. In particular, as in recent years, there is an increasing demand for higher production efficiency and higher density of the active material. As a result, there is a high possibility that such a problem will occur in a roll press that is subjected to high-speed winding or a high load of a roll press. .

また、特許文献２の手法は、ロールプレスのシート搬送過程で、開口部を有する被覆シートを剥離する工程を必要とし、また、ロール設備にそのような被覆シート剥離装置を設けなければならず、その分、作業工数とロール設備のコストが高くなる。   In addition, the technique of Patent Document 2 requires a step of peeling the covering sheet having an opening in the sheet conveyance process of the roll press, and the roll equipment must be provided with such a covering sheet peeling device. The work man-hours and the cost of the roll equipment increase accordingly.

かような事情もあって、基材の表面に該基材の長手方向に延び幅方向に間隔をあけて複数本の活物質の塗工部を形成したシートの場合には、ロールプレス設備にスリッターを設けて複数に分断することはなかなか実用化されていなかった。したがって、そのような場合では、ロールプレス工程とは別工程で、事前にスリット加工を行い、単条塗工品としてからプレスロールを行っている。そのために、プレス機の必要台数や作業工数が増えてしまうので、そのような場合でも、単条とせずにロールプレスを行うことや、ロールプレス設備にスリッターを設けて複数に分断することが望まれていた。   Under such circumstances, in the case of a sheet formed on the surface of the base material and extending in the longitudinal direction of the base material and spaced apart in the width direction to form a plurality of active material coating portions, the roll press equipment Providing a slitter and dividing it into multiple pieces has not been practically used. Therefore, in such a case, a slit process is performed in advance in a process different from the roll press process, and the press roll is performed after the single-line coated product is obtained. As a result, the required number of press machines and the number of work man-hours will increase, so even in such a case, it is desirable to perform roll pressing without using a single strip, or to install a slitter in the roll press equipment and divide it into multiple pieces. It was rare.

本発明の目的は、上記のような被覆シート剥離工程を要さず、基材（アルミ箔や銅拍のような導電箔）の長手方向に延び幅方向に間隔（非塗工部）をおいて形成される複数本の塗工部を形成したシートであっても、シートをロールプレスにかけた場合の非塗工部に生じる皺や亀裂発生の抑制を、低コスト、低工数によって実現でき、かつ、複数に分断されたシートの搬送速度のばらつきやたるみの発生を防止できる電極材料用のロールプレス設備を提供することにある。   The object of the present invention does not require the covering sheet peeling step as described above, and extends in the longitudinal direction of the base material (conductive foil such as aluminum foil or copper beat) and has a gap (non-coated portion) in the width direction. Even in the sheet formed with a plurality of coated parts formed by the sheet, the suppression of wrinkles and cracks occurring in the non-coated part when the sheet is subjected to a roll press can be realized at low cost and low man-hours. And it is providing the roll press equipment for electrode materials which can prevent the dispersion | variation in the conveyance speed of the sheet | seat divided | segmented into plurality, and generation | occurrence | production of sagging.

上記目的を達成するために、本発明は、基本的には、次のように構成される。   In order to achieve the above object, the present invention is basically configured as follows.

すなわち、基材の表面に該基材の長手方向に延び幅方向に間隔をあけて複数本の活物質の塗工部を形成したシートを送り出す巻出機と、前記シートを複数のガイドロールを介して巻取機側に搬送する過程で前記塗工部を圧縮加工する一対のプレスロールと、を備えたロールプレス設備において、
前記プレスロールと該プレスロール下流のガイドロールのうち該プレスロールに最も近いガイドロールとの間に、前記シートの少なくとも各物質塗工部間の位置で該シートを切断する複数の切断刃からなるスリッターを設けたことを特徴とする。 That is, an unwinding machine that feeds a sheet on which a plurality of active material coating portions are formed extending in the longitudinal direction of the base material and spaced in the width direction on the surface of the base material, and a plurality of guide rolls. In a roll press facility provided with a pair of press rolls that compress the coating portion in the process of conveying to the winder side,
Between the press roll and the guide roll closest to the press roll among the guide rolls downstream of the press roll, a plurality of cutting blades for cutting the sheet at a position between at least each material coating portion of the sheet. A slitter is provided.

上記構成によれば、ロールプレスにかけられたシートは、プレスロールの下流の最初のガイドロールに至る前にスリッターにかけられて、少なくとも各物質塗工部間の位置で該シートが複数に切断（分断）される。なお、既述したように、ロールプレスにかけられたシートは、最終的には、各塗工部間（非塗工部）の幅方向中心位置（例えば図３のＳ２とＳ４の延長線上）と各塗工部の幅方向中心位置（例えば図３のＳ１とＳ３とＳ５との延長線上）で切断されるが、このうち、プレスロールの下流の最初のガイドロールに至る前にスリッターにかけられる切断位置は、少なくとも、前者の各塗工部間（非塗工部）の幅方向中心位置であり、後者の各塗工部の幅方向中心位置は、前者と同時に或いはその後に行うようにしてもよい。   According to the above configuration, the sheet that has been subjected to the roll press is subjected to a slitter before reaching the first guide roll downstream of the press roll, and the sheet is cut into a plurality of pieces (divided at least at positions between the material coating portions). ) As described above, the sheet subjected to the roll press finally has a center position in the width direction between the coating parts (non-coating part) (for example, on the extension lines of S2 and S4 in FIG. 3). Cutting is performed at the center position in the width direction of each coating part (for example, on the extension line of S1, S3, and S5 in FIG. 3). Of these, cutting that is applied to a slitter before reaching the first guide roll downstream of the press roll. The position is at least the center position in the width direction between the former coating parts (non-coating part), and the center position in the width direction of each latter coating part may be performed simultaneously with or after the former. Good.

発明者の知見によれば、ロールプレスされたシートを、ガイドロールを経由してスリット（分断）する場合には、ロールプレスにより塗工部間（非塗工部）で発生する皺（皺の発生メカニズムは既述した通り）がガイドロールを通過する度に進行し亀裂が生じることになる。これに対し、本発明のように、プレスロールの下流の最初のガイドロールに至る前で、少なくとも各塗工部間（非塗工部）の中心位置でシートをスリッターにかけた場合には、その後、各分断シートが複数のガイドロールを経由して巻取機に至った場合であっても、皺の進行は抑制されほとんどが亀裂に至らないことを見出した。本発明は、以上の知見に基づいてなされたものである。   According to the inventor's knowledge, when the roll-pressed sheet is slit (divided) via the guide roll, the wrinkles generated between the coating parts (non-coating parts) by the roll press The generation mechanism proceeds as described above) every time it passes through the guide roll, and cracks occur. On the other hand, as in the present invention, before reaching the first guide roll downstream of the press roll, if the sheet is subjected to a slitter at least at the center position between the coating parts (non-coating part), then The inventors have found that even when each divided sheet reaches a winder via a plurality of guide rolls, the progression of wrinkles is suppressed and almost no cracks are caused. The present invention has been made based on the above findings.

本発明によれば、電極材料用のロールプレス設備において、被覆シート剥離工程を要さず、基材（アルミ箔や銅拍のような導電箔）の長手方向に延び幅方向に間隔（非塗工部）をおいて形成される複数本の塗工部を形成したシートであっても、シートをロールプレスにかけた場合の非塗工部に生じる皺や亀裂発生の抑制を、低コスト、低工数によって実現でき、かつ、複数に分断されたシートの搬送速度のばらつきやたるみの発生を防止できる。   According to the present invention, in a roll press facility for electrode materials, a covering sheet peeling step is not required, and the base material (a conductive foil such as an aluminum foil or a copper foil) extends in the longitudinal direction and is spaced in the width direction (non-coated). Even if the sheet has a plurality of coated parts formed with a construction part), it suppresses the generation of wrinkles and cracks in the non-coated part when the sheet is subjected to a roll press at low cost and low It can be realized by man-hours and can prevent variations in the conveyance speed and sagging of the divided sheet.

本発明の第１実施例に係るロールプレス設備の概要図。1 is a schematic diagram of a roll press facility according to a first embodiment of the present invention. 本発明の第２実施例に係るロールプレス設備の概要図。The schematic diagram of the roll press installation which concerns on 2nd Example of this invention. 複数本の塗工部が幅方向に所定の間隔をあけて形成されているシートのロールプレス後の一部を示す平面図。The top view which shows a part after the roll press of the sheet | seat in which the several coating part is formed at predetermined intervals in the width direction. 本発明の第３実施例に係るロールプレス設備の概要図。The schematic diagram of the roll press equipment concerning the 3rd example of the present invention. 本発明の第４実施例に係るロールプレス設備の概要図。The schematic diagram of the roll press equipment concerning the 4th example of the present invention.

以下、本発明の実施の形態を、図１及び図２の実施例により説明する。   Hereinafter, embodiments of the present invention will be described with reference to the examples of FIGS.

図１に示す第１実施例に係るロールプレス設備は、アルミ箔、銅箔など導電材料よりなる長尺の基材の一面又は両面に電極材料となる活物質を塗工してなるシート１０を適用対象とするものである。特に図３に示すように、基材１４の表面に該基材の長手方向に延び幅方向に間隔（非塗工部）１２をあけて複数本の活物質の塗工部１１を形成したシートである。本実施例では、一例として、リチウムイオン二次電池の捲回式電極に用いる電極の製造過程のシートを例示するが、これに限定するものではなく、その他の用途のものでも適用可能である。   The roll press facility according to the first embodiment shown in FIG. 1 includes a sheet 10 formed by applying an active material to be an electrode material on one or both sides of a long base material made of a conductive material such as aluminum foil or copper foil. Applicable. In particular, as shown in FIG. 3, a sheet in which a plurality of active material coating portions 11 are formed on the surface of the base material 14 extending in the longitudinal direction of the base material and spaced in the width direction (non-coating portion) 12. It is. In the present embodiment, as an example, a sheet of an electrode manufacturing process used for a wound electrode of a lithium ion secondary battery is illustrated, but the present invention is not limited to this and can be applied to other uses.

本実施例のロールプレス設備は、概略的には、シート１０の巻出しコイルを巻いた巻出機１と、巻出機１から送り出される長尺のシート１０を圧縮加工する一対のプレスロール２（上プレスロール，下プレスロール）と、圧縮加工されたシートを巻取って、巻取りコイルを生成する巻取機３とを備える。巻出機１とプレスロール２間には、シート１０に対する張力制御・搬送機構４が設けられる。また、プレスロール２と巻取機３間にも、張力制御・搬送機構５が設けられている。   The roll press facility of the present embodiment schematically includes an unwinding machine 1 in which an unwinding coil of the sheet 10 is wound, and a pair of press rolls 2 that compress a long sheet 10 fed from the unwinding machine 1. (Upper press roll, lower press roll) and a winder 3 that winds the compressed sheet and generates a winding coil. A tension control / conveyance mechanism 4 for the sheet 10 is provided between the unwinder 1 and the press roll 2. A tension control / conveyance mechanism 5 is also provided between the press roll 2 and the winder 3.

これらの張力制御・搬送機構５，６は、それぞれガイドロール５０が複数（例えば５〜１５本程度）備える。ガイドロール５０は、シート１０の搬送案内と、シート１０が搬送過程で皺にならないようにシートの幅方向に張力を与えるものである。   Each of these tension control / conveyance mechanisms 5 and 6 includes a plurality of guide rolls 50 (for example, about 5 to 15). The guide roll 50 is a guide for conveying the sheet 10 and applies tension in the width direction of the sheet so that the sheet 10 does not become wrinkles in the conveyance process.

ガイドロール５０は、凸クラウン形状または真円柱形状をしているロールよりなり、例えばφ１００ｍｍ〜３００ｍｍである。   The guide roll 50 is made of a roll having a convex crown shape or a true cylindrical shape, and has a diameter of 100 mm to 300 mm, for example.

シート１０の幅は、ガイドロール５０の幅に収まるサイズであり、シート基材となる箔１４の厚みは、従前は１０〜３０μｍ（平均１８〜２０μｍ）であったが、最近では、１０μｍ以下（例えば８〜９μｍ）の要求があり、しかもプレス速度の高速化が望まれている。プレスロール２によりシート１０に与えられる荷重は、線圧力で１００〜２，０００ｋｇ／ｃｍ程度である。   The width of the sheet 10 is a size that fits within the width of the guide roll 50, and the thickness of the foil 14 serving as a sheet base material has been 10 to 30 μm (average 18 to 20 μm) in the past, but recently, the thickness is 10 μm or less ( For example, there is a demand of 8 to 9 μm), and a higher press speed is desired. The load applied to the sheet 10 by the press roll 2 is about 100 to 2,000 kg / cm in terms of linear pressure.

本実施例では、本発明の課題を解決するために、プレスロール２とプレスロール下流の複数のガイドロール５０のうちプレスロール２に最も近いガイドロール５０´との間に、スリッター６を設ける。シート１０は、ガイドロール５０´の位置で下方（上方でもよい）に曲げられ、張力が与えられる。スリッター６は、シート１０の各非塗工部（各塗工部間）の中心位置（例えば図３のＳ２，Ｓ４の延長線上）でシート１０を長手方向に切断する複数の切断刃と、シート１０の塗工部の中心位置（例えば図３のＳ１，Ｓ３，Ｓ５の延長線上）でシート１０を長手方向に切断する複数の切断刃（図示省略）とからなる。スリッターそのものは、種々のタイプのものがあり、スリッター自身は、周知であるので、機構的な詳細な説明は省略する。なお、スリッター６は、複数の切断刃間を切断間隔に応じて調整する機構（図示省略）を有する。また、スリッターの巾方向位置を材料の蛇行に合わせ巾方向に調整する機構が必要となるが、周知の技術で成しえるので機構的な詳細な説明は省略する。   In this embodiment, in order to solve the problem of the present invention, the slitter 6 is provided between the press roll 2 and the guide roll 50 ′ closest to the press roll 2 among the plurality of guide rolls 50 downstream of the press roll. The sheet 10 is bent downward (or may be upward) at the position of the guide roll 50 ′, and tension is applied. The slitter 6 includes a plurality of cutting blades for cutting the sheet 10 in the longitudinal direction at the center position of each non-coated portion (between each coated portion) of the sheet 10 (for example, on the extension line of S2 and S4 in FIG. 3), 10 comprises a plurality of cutting blades (not shown) for cutting the sheet 10 in the longitudinal direction at the center position of the coating portion (for example, on the extension line of S1, S3, and S5 in FIG. 3). There are various types of slitters themselves, and since the slitters themselves are well known, detailed description of the mechanism is omitted. The slitter 6 has a mechanism (not shown) that adjusts a plurality of cutting blades according to the cutting interval. Further, a mechanism for adjusting the width direction position of the slitter in accordance with the meandering of the material in the width direction is required. However, since it can be realized by a known technique, detailed description of the mechanism is omitted.

ロールプレスにかけられたシート１０は、プレスロール２の下流の最初のガイドロール５０´に至る前にスリッター６にかけられて、各塗工部間（非塗工部１２）の幅方向中心位置（例えば図３のＳ２，Ｓ４の延長線上）と各塗工部１１の幅方向中心位置（例えば図３のＳ１，Ｓ３，Ｓ５との延長線上）で切断される。   The sheet 10 subjected to the roll press is applied to the slitter 6 before reaching the first guide roll 50 ′ downstream of the press roll 2, and the center position in the width direction (for example, between the non-coated parts 12) (for example, 3 (on the extension line of S2 and S4 in FIG. 3) and the center position in the width direction of each coating part 11 (for example, on the extension line of S1, S3 and S5 in FIG. 3).

本実施例では、シート１０が分断された結果得られた複数の電極シートは、一つの巻取機３で巻き取られる。   In the present embodiment, a plurality of electrode sheets obtained as a result of dividing the sheet 10 are wound up by a single winder 3.

プレスロール２の下流の最初のガイドロール５０´に至る前で、シート１０を上記した切断位置でスリッター６にかけた場合には、その後、各分断シートが複数のガイドロール５０を経由して巻取機３に至った場合であっても、皺の進行は抑制されほとんどが亀裂に至らなかった。   When the sheet 10 is applied to the slitter 6 at the cutting position described above before reaching the first guide roll 50 ′ downstream of the press roll 2, each divided sheet is then wound up via the plurality of guide rolls 50. Even when the machine 3 was reached, the progress of wrinkles was suppressed and most of them did not crack.

なお、張力制御機構・搬送機構５には、スリット後の幅広げ機構（エキスパンドロール等）、張力制御機構（ダンサーロール等）、蛇行補正機構（ステアリングロール等）が設けられるが、これらについては既知の技術であるので図示省略する。   The tension control mechanism / conveyance mechanism 5 is provided with a slit widening mechanism (expanding roll, etc.), a tension control mechanism (dancer roll, etc.), and a meandering correction mechanism (steering roll, etc.). Because of this technique, illustration is omitted.

図２は、第２の実施例を示すものである。   FIG. 2 shows a second embodiment.

第１実施例との相違点は、スリッター６で分断された結果の電極シートを、共通の巻取機ではなく、各電極シートごとに巻取るために、または、隣接する各条を別の巻取軸にすることにより仕上り巻取コイル間隔を広くするために、電極シート数に応じた、または２本の巻取機３ａ，３ｂを備えた点であり、その他の構成は、第１実施例と同様である。   The difference from the first embodiment is that the electrode sheet as a result of being divided by the slitter 6 is not wound on a common winder but on each electrode sheet, or each adjacent strip is wound separately. In order to increase the distance between the finished winding coils by using a winding shaft, the number of electrode sheets is increased or two winding machines 3a and 3b are provided, and the other configuration is the first embodiment. It is the same.

図４は、第３実施例を示すものである。   FIG. 4 shows a third embodiment.

本実施例は、第１実施例同様にスリッター６で分断された結果の電極シートを、共通の巻取機３で巻き取る方式のロールプレス設備を対象にしている。本実施例のスリッター６は、第１実施例同様にプレスロール２の下流の最初のガイドロール５０´に至る前に配置されるが、このスリッター６の下歯に沿わせてシート１０を下方（上方でもよい）に曲げるようにしている。第１実施例では、スリッター６の位置ではシート１を曲げずにガイドロール５０´で曲げるようにしているが、本実施例では、スリッター部でシート１０を曲げるようにしている。その他の構成は、第１実施例同様である。   The present embodiment is intended for a roll press facility in which the electrode sheet as a result of being divided by the slitter 6 is wound by a common winder 3 as in the first embodiment. The slitter 6 of this embodiment is arranged before reaching the first guide roll 50 ′ downstream of the press roll 2 as in the first embodiment, but the sheet 10 is moved downward along the lower teeth of the slitter 6 ( It may be bent upward). In the first embodiment, the sheet 1 is bent at the position of the slitter 6 by the guide roll 50 ′, but in the present embodiment, the sheet 10 is bent at the slitter portion. Other configurations are the same as in the first embodiment.

図５は、第４実施例を示すものである。   FIG. 5 shows a fourth embodiment.

本実施例は、第２実施例同様にスリッター６で分断された結果の電極シートを、電極シート数に応じた巻取機、または２本の巻取機３ａ，３ｂにより巻取る方式のロールプレス設備である。本実施例におけるスリッター６も、プレスロール２の下流の最初のガイドロール５０´に至る前に配置されるが、第３実施例同様にスリッター６の下歯に沿わせてシート１０を下方（上方でもよい）に曲げるようにしている。その他の構成は、第２実施例同様である。   In this embodiment, a roll press in which the electrode sheet as a result of being divided by the slitter 6 is wound by a winder corresponding to the number of electrode sheets or by two winders 3a and 3b as in the second embodiment. Equipment. The slitter 6 in this embodiment is also arranged before reaching the first guide roll 50 'downstream of the press roll 2, but the sheet 10 is moved downward (upward) along the lower teeth of the slitter 6 as in the third embodiment. But it can be bent). Other configurations are the same as in the second embodiment.

上記した第２〜第４実施例においても、第１実施例と同様の効果、すなわち分断された電極シートが複数のガイドロール５０を経由して巻取機３に至った場合であっても、皺の進行は抑制されほとんどが亀裂に至らなかった。   Even in the above-described second to fourth examples, the same effect as the first example, that is, even when the divided electrode sheet reaches the winder 3 via the plurality of guide rolls 50, The progression of wrinkles was suppressed and most of them did not crack.

１…巻出機、２…プレスロール、３…巻取機、６…スリッター、１０…シート、１１…活物質塗工部、１２…非塗工部、１３…皺、１４…基材、５０，５０´…ガイドロール。 DESCRIPTION OF SYMBOLS 1 ... Unwinding machine, 2 ... Press roll, 3 ... Winding machine, 6 ... Slitter, 10 ... Sheet, 11 ... Active material coating part, 12 ... Non-coating part, 13 ... Saddle, 14 ... Base material, 50 , 50 '... guide roll.

例えば、特許文献１（国際公開２０１０／２６７８４号公報）では、シートを各塗工部の間（非塗工部）で分断する第１切断工程を、シート（塗工部）をロールプレスにかける前に行って、非塗工部に生じる皺の度合いや進行を抑制する技術が提案されている。 For example, in Patent Document 1 ( International Publication No. 2010/26784), the first cutting step in which the sheet is divided between the coating parts (non-coating part) is subjected to a roll press on the sheet (coating part). A technique has been proposed that is performed before and suppresses the degree and progress of wrinkles generated in the non-coated portion.

国際公開２０１０／２６７８４号公報International Publication No. 2010/26784 特開２００５−１９０７８７号公報JP 2005-190787 A

本発明の目的は、上記のような被覆シート剥離工程を要さず、基材（アルミ箔や銅箔のような導電箔）の長手方向に延び幅方向に間隔（非塗工部）をおいて形成される複数本の塗工部を形成したシートであっても、シートをロールプレスにかけた場合の非塗工部に生じる皺や亀裂発生の抑制を、低コスト、低工数によって実現でき、かつ、複数に分断されたシートの搬送速度のばらつきやたるみの発生を防止できる電極材料用のロールプレス設備を提供することにある。 The object of the present invention does not require the covering sheet peeling step as described above, and extends in the longitudinal direction of the base material (conductive foil such as aluminum foil or copper foil ) and has a gap (non-coated portion) in the width direction. Even in the sheet formed with a plurality of coated parts formed by the sheet, the suppression of wrinkles and cracks occurring in the non-coated part when the sheet is subjected to a roll press can be realized at low cost and low man-hours. And it is providing the roll press equipment for electrode materials which can prevent the dispersion | variation in the conveyance speed of the sheet | seat divided | segmented into plurality, and generation | occurrence | production of sagging.

本発明によれば、電極材料用のロールプレス設備において、被覆シート剥離工程を要さず、基材（アルミ箔や銅箔のような導電箔）の長手方向に延び幅方向に間隔（非塗工部）をおいて形成される複数本の塗工部を形成したシートであっても、シートをロールプレスにかけた場合の非塗工部に生じる皺や亀裂発生の抑制を、低コスト、低工数によって実現でき、かつ、複数に分断されたシートの搬送速度のばらつきやたるみの発生を防止できる。 According to the present invention, in a roll press facility for electrode materials, a covering sheet peeling step is not required, and the base material (a conductive foil such as an aluminum foil or a copper foil ) extends in the longitudinal direction and is spaced in the width direction (non-coated). Even if the sheet has a plurality of coated parts formed with a construction part), it suppresses the generation of wrinkles and cracks in the non-coated part when the sheet is subjected to a roll press at low cost and low It can be realized by man-hours and can prevent variations in the conveyance speed and sagging of the divided sheet.

これらの張力制御・搬送機構４，５は、それぞれガイドロール５０が複数（例えば５〜１５本程度）備える。ガイドロール５０は、シート１０の搬送案内と、シート１０が搬送過程で皺にならないようにシートの幅方向に張力を与えるものである。 Each of these tension control / conveyance mechanisms 4 and 5 includes a plurality of guide rolls 50 (for example, about 5 to 15). The guide roll 50 is a guide for conveying the sheet 10 and applies tension in the width direction of the sheet so that the sheet 10 does not become wrinkles in the conveyance process.

Claims (4)

長尺の基材の表面に該基材の長手方向に延び幅方向に間隔をあけて複数本の活物質の塗工部を形成したシートを送り出す巻出機と、前記シートを複数のガイドロールを介して巻取機側に搬送する過程で前記塗工部を圧縮加工する対のプレスロールと、を備えたロールプレス設備において、
前記プレスロールとプレスロール下流のガイドロールのうち該プレスロールに最も近いガイドロールとの間に、前記シートの少なくとも各物質塗工部間の位置で該シートを切断する複数の切断刃からなるスリッターを設けたことを特徴とするロールプレス設備。 An unwinding machine for feeding a sheet on which a plurality of active material coating portions are formed on the surface of a long base material extending in the longitudinal direction of the base material and spaced apart in the width direction; In a roll press facility provided with a pair of press rolls that compress the coating part in the process of conveying to the winder side via
A slitter comprising a plurality of cutting blades for cutting the sheet at least at a position between the material coating portions of the sheet between the press roll and a guide roll closest to the press roll among the guide rolls downstream of the press roll. A roll press facility characterized by the provision of 前記スリッターは、前記プレスロールと該プレスロールに最も近い前記ガイドロールとの間の位置で、前記シートの各塗工部間の幅方向中心位置と各塗工部の幅方向の中心とで同時に切断を行うよう配置された複数の切断歯を有する請求項１記載のロールプレス設備。   The slitter is located at a position between the press roll and the guide roll closest to the press roll at the same time in the center in the width direction between the coating portions of the sheet and the center in the width direction of the coating portions. The roll press facility according to claim 1, comprising a plurality of cutting teeth arranged to perform cutting. 長尺の基材の表面に該基材の長手方向に延び幅方向に間隔をあけて複数本の活物質の塗工部を形成したシートを巻出機で送り出し、前記シートを複数のガイドロールを介して巻取機側に搬送する過程で、前記プレスロールを介して前記塗工部を圧縮加工する電極シートの製造方法において、
前記プレスロールとプレスロール下流のガイドロールのうち該プレスロールに最も近いガイドロールとの間に、複数の切断刃からなるスリッターを配置して、このスリッター位置で、且つ前記シートの少なくとも各物質塗工部間の位置で、前記シートを切断する工程を含むことを特徴とする電極シートの製造方法。 A sheet in which a plurality of active material coating portions are formed on the surface of a long base material extending in the longitudinal direction of the base material and spaced in the width direction is sent out by an unwinding machine, and the sheet is supplied to a plurality of guide rolls. In the process of transporting to the winder side through, in the method of manufacturing an electrode sheet that compresses the coating part through the press roll,
A slitter composed of a plurality of cutting blades is disposed between the press roll and a guide roll closest to the press roll among the guide rolls downstream of the press roll, and at least at each of the substances coated on the sheet at the slitter position. A method for producing an electrode sheet, comprising a step of cutting the sheet at a position between engineering parts. 前記スリッターは、前記プレスロールと該プレスロールに最も近い前記ガイドロールとの間の位置で、前記シートの各塗工部間の幅方向中心位置と各塗工部の幅方向の中心とで同時に切断を行う請求項３記載の電極シートの製造方法。   The slitter is located at a position between the press roll and the guide roll closest to the press roll at the same time in the center in the width direction between the coating portions of the sheet and the center in the width direction of the coating portions. The manufacturing method of the electrode sheet of Claim 3 which performs a cutting | disconnection.
JP2012219067A 2012-10-01 2012-10-01 Roll press facility for electrode material and method for producing electrode sheet Active JP5228133B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012219067A JP5228133B1 (en) 2012-10-01 2012-10-01 Roll press facility for electrode material and method for producing electrode sheet
CN201310438260.2A CN103715390B (en) 2012-10-01 2013-09-05 The electrode material manufacture method of roll press equipment and electrode slice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012219067A JP5228133B1 (en) 2012-10-01 2012-10-01 Roll press facility for electrode material and method for producing electrode sheet

Publications (2)

Publication Number Publication Date
JP5228133B1 JP5228133B1 (en) 2013-07-03
JP2014072114A true JP2014072114A (en) 2014-04-21

Family

ID=48913931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012219067A Active JP5228133B1 (en) 2012-10-01 2012-10-01 Roll press facility for electrode material and method for producing electrode sheet

Country Status (2)

Country Link
JP (1) JP5228133B1 (en)
CN (1) CN103715390B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104001720A (en) * 2014-06-12 2014-08-27 宁德新能源科技有限公司 Roll-in device
WO2018066806A1 (en) * 2016-10-07 2018-04-12 주식회사 엘지화학 Method for manufacturing secondary battery electrode comprising pre-slitting process
JP2018063860A (en) * 2016-10-13 2018-04-19 株式会社豊田自動織機 Rolling press method
JP2019036627A (en) * 2017-08-15 2019-03-07 トヨタ自動車株式会社 Method of manufacturing electrode
WO2020152980A1 (en) * 2019-01-23 2020-07-30 Ｊｍエナジー株式会社 Electrode production system and electrode production method
US11031582B2 (en) 2017-09-01 2021-06-08 Toyota Jidosha Kabushiki Kaisha Electrode manufacture by switching contact region of roll surface upon abnormality detection
WO2021200546A1 (en) * 2020-03-30 2021-10-07 パナソニック株式会社 Device for manufacturing electrode plate and method for manufacturing electrode plate
WO2023224287A1 (en) * 2022-05-20 2023-11-23 주식회사 엘지에너지솔루션 Electrode assembly manufacturing device for preventing folding of separator, and electrode assembly manufactured using same

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5480437B1 (en) * 2013-09-27 2014-04-23 株式会社日立パワーソリューションズ Slitter equipment for electrode materials and production equipment for electrode materials
MX2017013295A (en) * 2015-04-17 2018-02-26 Ball Corp Method and apparatus for controlling the speed of a continuous sheet of material.
CN106505180B (en) * 2016-12-28 2024-03-15 银隆新能源股份有限公司 Rolling device and method for battery pole piece
CN107132069A (en) * 2017-06-29 2017-09-05 力信（江苏）能源科技有限责任公司 A kind of many mouthfuls of position slitting samplers of pole piece and sampling method
JP6992630B2 (en) * 2018-03-20 2022-01-13 トヨタ自動車株式会社 Electrode plate manufacturing method and manufacturing equipment
CN110867558B (en) * 2019-11-27 2022-08-16 衡阳市鑫晟新能源有限公司 Roller press for producing pole piece of aluminum-shell lithium ion battery
CN111063546A (en) * 2019-12-19 2020-04-24 泉州泉石电子科技有限公司 Manufacturing method of rolling type capacitor electrode plate base material
JP7221918B2 (en) * 2020-10-02 2023-02-14 プライムプラネットエナジー＆ソリューションズ株式会社 Electrode sheet manufacturing method
CN116799324A (en) * 2022-03-18 2023-09-22 宁德时代新能源科技股份有限公司 Winding apparatus and method
CN115000338B (en) * 2022-07-29 2022-11-04 楚能新能源股份有限公司 Method for reducing rejection rate of pole pieces in lithium battery rolling process
CN115331963B (en) * 2022-08-02 2024-06-07 新疆众和股份有限公司 Electrode foil processing device, electrode foil processing technology and electrode foil

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4023990B2 (en) * 2000-08-30 2007-12-19 松下電器産業株式会社 Method and apparatus for manufacturing battery electrode plate
JP4166973B2 (en) * 2001-11-21 2008-10-15 Ｔｄｋ株式会社 PRESS DEVICE FOR PRODUCTION OF BATTERY ELECTRODE AND METHOD FOR PRODUCING BATTERY ELECTRODE
JP2005183181A (en) * 2003-12-19 2005-07-07 Dainippon Ink & Chem Inc Electrode plate for nonaqueous electrolyte secondary battery and manufacturing method of the same
JP4873406B2 (en) * 2006-03-31 2012-02-08 三洋電機株式会社 Method for producing non-sintered electrode for battery
JP2007311280A (en) * 2006-05-22 2007-11-29 Matsushita Electric Ind Co Ltd Manufacturing method of electrode plate for secondary battery
JP2008066050A (en) * 2006-09-06 2008-03-21 Matsushita Electric Ind Co Ltd Manufacturing method of electrode plate for lithium secondary battery
JP5176347B2 (en) * 2007-03-08 2013-04-03 トヨタ自動車株式会社 Electrode plate pressing method and electrode plate pressing apparatus
JP5173533B2 (en) * 2008-03-31 2013-04-03 日立ビークルエナジー株式会社 Roll press machine
JP2010020986A (en) * 2008-07-09 2010-01-28 Toyota Motor Corp Electrode plate, battery, vehicle, battery-equipped apparatus, and manufacturing method for electrode plate
JP5408504B2 (en) * 2008-09-02 2014-02-05 トヨタ自動車株式会社 Electrode sheet manufacturing method and apparatus

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104001720A (en) * 2014-06-12 2014-08-27 宁德新能源科技有限公司 Roll-in device
WO2018066806A1 (en) * 2016-10-07 2018-04-12 주식회사 엘지화학 Method for manufacturing secondary battery electrode comprising pre-slitting process
US11329272B2 (en) 2016-10-07 2022-05-10 Lg Energy Solution, Ltd. Method of manufacturing electrode for secondary battery comprising pre-slitting process
JP2018063860A (en) * 2016-10-13 2018-04-19 株式会社豊田自動織機 Rolling press method
JP2019036627A (en) * 2017-08-15 2019-03-07 トヨタ自動車株式会社 Method of manufacturing electrode
US11196033B2 (en) 2017-09-01 2021-12-07 Toyota Jidosha Kabushiki Kaisha Method for manufacturing electrode by switching contact region of roll surface upon abnormality detection
US11031582B2 (en) 2017-09-01 2021-06-08 Toyota Jidosha Kabushiki Kaisha Electrode manufacture by switching contact region of roll surface upon abnormality detection
JPWO2020152980A1 (en) * 2019-01-23 2021-11-25 武蔵エナジーソリューションズ株式会社 Electrode manufacturing system and electrode manufacturing method
WO2020152980A1 (en) * 2019-01-23 2020-07-30 Ｊｍエナジー株式会社 Electrode production system and electrode production method
WO2021200546A1 (en) * 2020-03-30 2021-10-07 パナソニック株式会社 Device for manufacturing electrode plate and method for manufacturing electrode plate
JP2021155207A (en) * 2020-03-30 2021-10-07 パナソニック株式会社 Manufacturing device of electrode plate and manufacturing method of electrode plate
JP7165156B2 (en) 2020-03-30 2022-11-02 パナソニックホールディングス株式会社 Electrode plate manufacturing apparatus and electrode plate manufacturing method
WO2023224287A1 (en) * 2022-05-20 2023-11-23 주식회사 엘지에너지솔루션 Electrode assembly manufacturing device for preventing folding of separator, and electrode assembly manufactured using same

Also Published As

Publication number Publication date
CN103715390B (en) 2016-07-20
CN103715390A (en) 2014-04-09
JP5228133B1 (en) 2013-07-03

Similar Documents

Publication Publication Date Title
JP5228133B1 (en) Roll press facility for electrode material and method for producing electrode sheet
JP5757414B2 (en) Battery electrode sheet and manufacturing method thereof
JP5480437B1 (en) Slitter equipment for electrode materials and production equipment for electrode materials
JP2014235800A (en) Roll press facility
KR20150062839A (en) Notching apparatus of laser
JP2017117528A (en) Manufacturing method of electrode sheet
JP2017224568A (en) Electrode manufacturing facility
JP6428286B2 (en) Graphic printing apparatus and graphic printing method
KR102285230B1 (en) Press apparatus for electrode sheet
JP6879116B2 (en) Cutting device for electrodes
US20080103035A1 (en) Paper roll with pre-cut windows
WO2017018347A1 (en) Electrode sheet production method
JP6474557B2 (en) Tissue paper manufacturing equipment and tissue paper manufacturing method
JP2018126761A (en) Method for manufacturing metallic bar
JP2015057796A (en) Electrode sheet for battery and manufacturing method thereof
CN105436222B (en) A kind of copper strips paper tinsel closes winding apparatus
JP2013054932A (en) Roll press device of electrode plate for battery
CN114388728B (en) Method for manufacturing electrode sheet
JP2016004756A (en) Press device
WO2021200546A1 (en) Device for manufacturing electrode plate and method for manufacturing electrode plate
JP2019175819A (en) Continuous production method of membrane electrode gas diffusion layer assembly
JP2017024875A (en) Manufacturing method and apparatus for thin film
CN205341523U (en) Copper strips paper tinsel closes package and puts
CN218642098U (en) Wrinkle-removing rolling equipment
JP6287525B2 (en) Electrode manufacturing apparatus and electrode manufacturing method

Legal Events

Date Code Title Description
TRDD Decision of grant or rejection written
A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130318

R150 Certificate of patent or registration of utility model

Ref document number: 5228133

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20160322

Year of fee payment: 3

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350