JP2020077491A - Battery manufacturing apparatus - Google Patents

Battery manufacturing apparatus Download PDF

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JP2020077491A
JP2020077491A JP2018209022A JP2018209022A JP2020077491A JP 2020077491 A JP2020077491 A JP 2020077491A JP 2018209022 A JP2018209022 A JP 2018209022A JP 2018209022 A JP2018209022 A JP 2018209022A JP 2020077491 A JP2020077491 A JP 2020077491A
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magazine
sheet
processing step
step execution
dry air
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JP6897654B2 (en
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信平 阿部
Shinpei Abe
信平 阿部
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Toyota Motor Corp
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    • 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

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Abstract

To prevent sheet-like electrodes from being exposed to the ambient air.SOLUTION: A battery, which is a laminate of sheet-like electrodes (1), is manufactured after a multiple number of processing steps. Between processing step execution devices for executing the respective processing steps, the sheet-like electrodes (1) are conveyed by using a magazine (10) for holding the sheet-like electrodes (1). To shield the processing step execution devices from the ambient air, the processing step execution devices are surrounded by a sealing wall (50), and dry air at a pressure higher than the ambient air pressure is supplied to a space inside the sealing wall (50). While moving the magazine (10) inside the sealing wall (50) into a magazine conveyance sealed container (20), the magazine conveyance sealed container (20) is filled with dry air at a pressure higher than the ambient air pressure inside the sealing wall (50). With the magazine conveyance sealed container (20) filled with the dry air at the pressure higher than the ambient air pressure, the magazine (10) is conveyed between the processing step execution devices.SELECTED DRAWING: Figure 1

Description

本発明は、電池製造装置に関する。   The present invention relates to a battery manufacturing device.

基材上に正極、負極および固体電解質からなる積層体を形成し、気相プロセスが終了した後、積層体を、露点が―４５度以下の不活性雰囲気中で、外気に晒すことなく搬送し、この不活性雰囲気中で積層体を封止部材により封止するようにした電池製造装置が公知である（例えば特許文献１を参照）。   After forming a laminated body composed of a positive electrode, a negative electrode and a solid electrolyte on a substrate and completing the gas phase process, the laminated body is transported in an inert atmosphere with a dew point of −45 ° C. or less without being exposed to the outside air. A battery manufacturing apparatus is known in which the laminate is sealed with a sealing member in this inert atmosphere (see, for example, Patent Document 1).

特開２００９−６４６６７号公報JP, 2009-64667, A

このようにこの電池製造装置では、積層体が大気中の水分によって劣化しないように、積層体を、露点が―４５度以下の不活性雰囲気中で、外気に晒すことなく搬送するようにしている。しかしながら、この電池製造装置は、積層体を、どのようにして、外気に晒すことなく搬送するかについて、全く示唆していない。   As described above, in this battery manufacturing apparatus, the laminated body is transported in an inert atmosphere having a dew point of −45 ° C. or less without being exposed to the outside air so that the laminated body is not deteriorated by moisture in the atmosphere. .. However, this battery manufacturing device does not suggest how to convey the laminated body without exposing it to the outside air.

本発明によれば、複数の処理工程を経てシート状電極の積層体である電池が製造され、これら各処理工程を実施する処理工程実施装置間において、シート状電極を保持するマガジンを用いてシート状電極を搬送する電池製造装置において、処理工程実施装置を大気から遮断するために処理工程実施装置が密閉壁により包囲されており、密閉壁内に、大気圧よりも高圧の乾燥空気が供給されており、密閉壁内のマガジンを、マガジン搬送用密閉容器内に移動すると共にマガジン搬送用密閉容器内を、密閉壁内の大気圧よりも高圧の乾燥空気で満たし、マガジン搬送用密閉容器が、大気圧よりも高圧の乾燥空気により満たされた状態で、処理工程実施装置間を搬送される電池製造装置が提供される。   According to the present invention, a battery, which is a laminated body of sheet-like electrodes, is manufactured through a plurality of treatment steps, and sheets are formed using a magazine that holds the sheet-like electrodes between the treatment step execution devices that perform these respective treatment steps. In the battery manufacturing apparatus that conveys the striped electrode, the processing step performing device is surrounded by a sealing wall in order to shield the processing step performing device from the atmosphere, and dry air having a pressure higher than atmospheric pressure is supplied to the sealing wall. The magazine in the closed wall is moved into the closed container for magazine transfer and the inside of the closed container for magazine transfer is filled with dry air having a pressure higher than the atmospheric pressure in the closed wall. Provided is a battery manufacturing apparatus which is transported between processing step execution apparatuses while being filled with dry air having a pressure higher than atmospheric pressure.

シート状電極が搬送中に大気に露呈されるのを阻止することができる。   It is possible to prevent the sheet electrode from being exposed to the atmosphere during transportation.

図１は、処理工程実施装置を図解的に示す図である。FIG. 1 is a diagram schematically showing a processing step execution device. 図２は、マガジンとマガジン搬送用密閉容器を図解的に示す斜視図である。FIG. 2 is a perspective view schematically showing the magazine and the closed container for carrying the magazine. 図３Ａ、３Ｂ、３Ｃおよび３Ｄは、単位電池およびシート状電極を説明するための図である。3A, 3B, 3C and 3D are diagrams for explaining the unit battery and the sheet electrode. 図４はマガジンおよびマガジン搬送用密閉容器の側面断面図である。FIG. 4 is a side sectional view of the magazine and the closed container for carrying the magazine. 図５は、ロックレバーの作動を説明するための図である。FIG. 5 is a diagram for explaining the operation of the lock lever. 図６は、ピストン装置の閉塞板および基台の斜視図である。FIG. 6 is a perspective view of a closing plate and a base of the piston device. 図７は、ピストン装置閉の塞板および基台の平面図である。FIG. 7 is a plan view of the closing plate and the base of the piston device closed. 図８は、マガジン搬送用密閉容器を下方からみたときの斜視図である。FIG. 8 is a perspective view of the closed magazine transport container as viewed from below. 図９は、図８の受容部の拡大図である。9 is an enlarged view of the receiving portion of FIG.

本発明では、シート状電極が作成され、このシート状電極の積層体から、例えば、車両に搭載される電池が形成される。そこで、まず初めに、このシート状電極について説明する。図３Ａおよび図３Ｂは夫々、このシート状電極を用いて製造される電池の構成要素、即ち、単位電池の平面図と、図３ＡのＸ−Ｘ線に沿って見た単位電池の断面図とを図解的に示している。なお、単位電池の厚みは１ｍｍ以下であり、従って、図３Ｂでは、各層の厚みがかなり誇張して示されている。   In the present invention, a sheet-shaped electrode is formed, and a battery mounted on a vehicle is formed from the laminated body of the sheet-shaped electrodes. Therefore, first, the sheet electrode will be described. 3A and 3B are a plan view of a constituent element of a battery manufactured by using the sheet electrode, that is, a unit cell, and a cross-sectional view of the unit cell taken along line XX of FIG. 3A. Is shown schematically. It should be noted that the unit cell has a thickness of 1 mm or less, and thus the thickness of each layer is shown in a greatly exaggerated manner in FIG. 3B.

図３Ｂを参照すると、２は正極集電体層、３は正極活物質層、４は固体電解質層、５は負極活物質層、６は負極集電体層を夫々示す。正極集電体層２は導電性材料から形成されており、本発明による実施例では、この正極集電体層２は集電用金属箔、例えば、アルミニウム箔から形成されている。また、正極活物質層３は、リチウムイオン、ナトリウムイオン、カルシウムイオン等の金属イオンを、放電の際に吸蔵させ、充電の際に放出させることのできる正極活物質から形成されている。また、固体電解質層４は、リチウムイオン、ナトリウムイオン、カルシウムイオン等の金属イオンに対して伝導性を有し、全固体電池の材料として利用可能な材料から形成されている。   Referring to FIG. 3B, 2 is a positive electrode current collector layer, 3 is a positive electrode active material layer, 4 is a solid electrolyte layer, 5 is a negative electrode active material layer, and 6 is a negative electrode current collector layer. The positive electrode current collector layer 2 is formed of a conductive material, and in the embodiment according to the present invention, the positive electrode current collector layer 2 is formed of a current collecting metal foil, for example, an aluminum foil. Further, the positive electrode active material layer 3 is formed of a positive electrode active material capable of occluding metal ions such as lithium ions, sodium ions, and calcium ions during discharge and releasing them during charge. The solid electrolyte layer 4 has conductivity with respect to metal ions such as lithium ions, sodium ions, and calcium ions, and is formed of a material that can be used as a material for an all-solid-state battery.

一方、負極活物質層５は、リチウムイオン、ナトリウムイオン、カルシウムイオン等の金属イオンを、放電の際に放出させ、充電の際に吸蔵させることのできる負極活物質から形成されている。また、負極集電体層６は導電性材料から形成されており、本発明による実施例では、この負極集電体層２は集電用金属箔、例えば、銅箔から形成されている。また、上述の説明からわかるように、本発明による実施例において製造される電池は全固体電池であり、この場合、この電池は、全固体リチウムイオン二次電池であることが好ましい。   On the other hand, the negative electrode active material layer 5 is formed of a negative electrode active material capable of releasing metal ions such as lithium ions, sodium ions, and calcium ions during discharging and occluding them during charging. Further, the negative electrode current collector layer 6 is made of a conductive material, and in the embodiment according to the present invention, the negative electrode current collector layer 2 is made of a current collecting metal foil, for example, a copper foil. Further, as can be seen from the above description, the battery manufactured in the example according to the present invention is an all-solid-state battery, and in this case, this battery is preferably an all-solid-state lithium-ion secondary battery.

さて、本発明による実施例において用いられるシート状電極は、図３Ａと同様な矩形状の平面形状を有しており、図３Ｃ又は図３Ｄに示される断面構造を有している。なお、これら図３Ｃおよび図３Ｄは、図３ＡのＸ−Ｘ線と同様な位置における断面図を示している。なお、これら図３Ｃおよび図３Ｄにおいても、図３Ｂと同様に、２は正極集電体層、３は正極活物質層、４は固体電解質層、５は負極活物質層、６は負極集電体層を示している。図３Ｃに示されるシート状電極は、中心部に負極集電体層６が位置しており、この負極集電体層６から上方向に向けて、負極活物質層５、固体電解質層４、正極活物質層３、正極集電体層２が順次形成されており、負極集電体層６から下方向に向けて、負極活物質層５、固体電解質層４、正極活物質層３が順次形成されている。この場合、本発明による実施例では、負極集電体層６は銅箔から形成されており、正極集電体層２はアルミニウム箔から形成されている。   Now, the sheet-like electrode used in the example according to the present invention has a rectangular planar shape similar to that of FIG. 3A, and has the sectional structure shown in FIG. 3C or 3D. 3C and 3D show cross-sectional views at the same position as the line XX in FIG. 3A. 3C and 3D, similarly to FIG. 3B, 2 is a positive electrode current collector layer, 3 is a positive electrode active material layer, 4 is a solid electrolyte layer, 5 is a negative electrode active material layer, and 6 is a negative electrode current collector. The body layer is shown. In the sheet-shaped electrode shown in FIG. 3C, the negative electrode current collector layer 6 is located at the center, and the negative electrode active material layer 5, the solid electrolyte layer 4, and the negative electrode current collector layer 6 are directed upward from the negative electrode current collector layer 6. The positive electrode active material layer 3 and the positive electrode current collector layer 2 are sequentially formed, and the negative electrode active material layer 5, the solid electrolyte layer 4, and the positive electrode active material layer 3 are sequentially arranged downward from the negative electrode current collector layer 6. Has been formed. In this case, in the embodiment according to the present invention, the negative electrode current collector layer 6 is made of copper foil, and the positive electrode current collector layer 2 is made of aluminum foil.

一方、図３Ｄに示されるシート状電極は、中心部に負極集電体層６が位置しており、この負極集電体層６から上下方向に向けて夫々、負極活物質層５、固体電解質層４、正極活物質層３が順次形成されている。即ち、図３Ｄに示されるシート状電極は正極集電体層２を有していない。図３Ｄに示される場合でも、負極集電体層６は銅箔から形成されている。本発明による実施例では、図３Ｄに示される断面形状のシート状電極が形成され、製造工程の途中で図３Ｄに示される断面形状のシート状電極上にアルミニウム箔（正極集電体）２が貼付され、その結果、図３Ｃに示される断面形状のシート状電極、即ち、アルミニウム箔２の貼付されたシート状電極が形成される。なお、以下に説明する実施例では、シート状電極１として、図３Ｄに示される構造を有するシート状電極１を用いた場合が示されている。   On the other hand, in the sheet-shaped electrode shown in FIG. 3D, the negative electrode current collector layer 6 is located at the center, and the negative electrode current collector layer 6 and the solid electrolyte are arranged in the vertical direction. The layer 4 and the positive electrode active material layer 3 are sequentially formed. That is, the sheet electrode shown in FIG. 3D does not have the positive electrode current collector layer 2. Even in the case shown in FIG. 3D, the negative electrode current collector layer 6 is formed of a copper foil. In the example according to the present invention, the sheet-shaped electrode having the cross-sectional shape shown in FIG. 3D is formed, and the aluminum foil (positive electrode current collector) 2 is formed on the sheet-shaped electrode having the cross-sectional shape shown in FIG. As a result, the sheet-like electrode having the cross-sectional shape shown in FIG. 3C, that is, the sheet-like electrode to which the aluminum foil 2 is attached is formed. In the examples described below, the case where the sheet-shaped electrode 1 having the structure shown in FIG. 3D is used as the sheet-shaped electrode 1.

次に、本発明による実施例について説明すると、本発明による実施例において扱われているシート状電極１は全固体電池を製造するためのものであり、このシート状電極１は大気に晒されると劣化する。従って、シート状電極１を扱う際には、シート状電極１が大気に晒されないようにする必要がある。ところで、本発明による実施例では、複数回の処理工程を経てシート状電極１の積層体である電池が製造され、図１には、これら複数回の処理工程のうちで、シート状電極１を製造する処理工程を実施するための装置Ａと、装置Ａにおいて製造されたシート状電極１の積層体を製造する処理工程を実施するための装置Ｂとが図解的に示されている。以下、これらの装置Ａ、Ｂを処理工程実施装置と称する。   Next, an example according to the present invention will be described. The sheet-like electrode 1 dealt with in the example according to the present invention is for manufacturing an all-solid-state battery, and the sheet-like electrode 1 is exposed to the atmosphere. to degrade. Therefore, when handling the sheet electrode 1, it is necessary to prevent the sheet electrode 1 from being exposed to the atmosphere. By the way, in the example according to the present invention, a battery which is a laminated body of the sheet-shaped electrode 1 is manufactured through a plurality of treatment steps, and the sheet-shaped electrode 1 is shown in FIG. 1 among the plurality of treatment steps. An apparatus A for carrying out a processing step for manufacturing and an apparatus B for carrying out a processing step for manufacturing a laminate of the sheet-shaped electrodes 1 manufactured in the apparatus A are schematically shown. Hereinafter, these apparatuses A and B will be referred to as processing step execution apparatuses.

さて、本発明による実施例では、シート状電極１を保持するマガジンを、マガジン搬送用密閉容器に入れて、処理工程実施装置Ａから処理工程実施装置Ｂに搬送するようにしている。図２には、これらマガジン１０およびマガジン搬送用密閉容器２０が図解的に示されている。図２に示されるにように、マガジン１０は、底板１１と、底板１１から上方に延びる複数個のガイド部材からなり、底板１１上には作成されたシート状電極１が積み重ねられている。一方、マガジン搬送用密閉容器２０は、底板２１と、底板２１上に密封的に固定はれている密閉容器本体２２からなる。   Now, in the embodiment according to the present invention, the magazine holding the sheet-shaped electrode 1 is placed in the magazine transporting closed container and is transported from the processing step performing apparatus A to the processing step performing apparatus B. FIG. 2 schematically shows the magazine 10 and the closed magazine 20 for carrying the magazine. As shown in FIG. 2, the magazine 10 includes a bottom plate 11 and a plurality of guide members extending upward from the bottom plate 11, and the sheet-shaped electrodes 1 formed on the bottom plate 11 are stacked. On the other hand, the magazine transport closed container 20 includes a bottom plate 21 and a closed container main body 22 that is hermetically fixed on the bottom plate 21.

図１に示されるように、処理工程実施装置Ａは、処理工程実施装置Ａを大気から遮断するために処理工程実施装置Ａの全体が密閉壁５０により包囲されており、この密閉壁５０の上壁には、マガジン１０の搬入搬出口５１が形成されている。この処理工程実施装置Ａ内には、このマガジン搬入搬出口５１を閉鎖可能な閉塞板５２を上下動するためのピストン装置５３が設けられている。同様に、処理工程実施装置Ｂは、処理工程実施装置Ｂを大気から遮断するために処理工程実施装置Ｂの全体が密閉壁６０により包囲されており、この密閉壁６０の上壁には、マガジン１０の搬入搬出口６１が形成されている。この処理工程実施装置Ｂ内には、このマガジン搬入搬出口６１を閉鎖可能な閉塞板６２を上下動するためのピストン装置６３が設けられている。   As shown in FIG. 1, in the processing step execution device A, the entire processing step execution device A is surrounded by a sealing wall 50 in order to shield the processing step execution device A from the atmosphere. A loading / unloading port 51 for the magazine 10 is formed on the wall. A piston device 53 for vertically moving a closing plate 52 capable of closing the magazine loading / unloading port 51 is provided in the processing step execution device A. Similarly, in the processing step execution device B, the entire processing step execution device B is surrounded by a sealing wall 60 in order to shield the processing step execution device B from the atmosphere. Ten loading / unloading ports 61 are formed. A piston device 63 for vertically moving a closing plate 62 capable of closing the magazine loading / unloading port 61 is provided in the processing step execution device B.

図１に示されるように、これら処理工程実施装置Ａの密閉壁５０内および処理工程実施装置Ｂの密閉壁６０内には、大気圧よりも高圧の乾燥空気を製造する乾燥空気製造装置Ｃから、露点がー７０度であって大気圧よりも高圧の乾燥空気が供給される。従って、これら処理工程実施装置Ａの密閉壁５０内および処理工程実施装置Ｂの密閉壁６０内は、大気圧よりも高圧の乾燥空気によって満たされている。   As shown in FIG. 1, the inside of the sealing wall 50 of the processing step execution apparatus A and the inside of the sealing wall 60 of the processing step execution apparatus B are from a dry air manufacturing apparatus C that manufactures dry air at a pressure higher than atmospheric pressure. , Dry air having a dew point of −70 degrees and higher than atmospheric pressure is supplied. Therefore, the inside of the sealing wall 50 of the processing step performing apparatus A and the inside of the sealing wall 60 of the processing step performing apparatus B are filled with dry air having a pressure higher than the atmospheric pressure.

次に、図１を参照しつつ、処理工程実施装置Ａから処理工程実施装置Ｂへのマガジン１０の搬送方法について説明する。処理工程実施装置Ａ内では、図３Ｄに示されるシート状電極１が作成され、作成されたシート状電極１が、Ｘ１で示される空のマガジン１０内に、Ｘ２で示されるように、積み重ねられる。一方、このとき、ピストン装置５３の閉塞板５２は下降位置にあり、空のマガジン搬送用密閉容器２０がマガジン搬入搬出口５１を密封的に閉鎖するように密閉壁５０上に固締されている。このとき、マガジン搬送用密閉容器２０の内部は、マガジン１０の挿入口２３を介して密閉壁５０内に連通しており、従って、マガジン搬送用密閉容器２０の内部は、密閉壁５０内の大気圧よりも高圧の乾燥空気によって満たされている。   Next, a method of transporting the magazine 10 from the processing step execution device A to the processing step execution device B will be described with reference to FIG. In the processing step execution apparatus A, the sheet-like electrode 1 shown in FIG. 3D is created, and the created sheet-like electrode 1 is stacked in the empty magazine 10 indicated by X1 as indicated by X2. .. On the other hand, at this time, the closing plate 52 of the piston device 53 is in the lowered position, and the empty magazine transporting closed container 20 is fastened on the sealing wall 50 so as to hermetically close the magazine loading / unloading port 51. .. At this time, the interior of the magazine transporting hermetic container 20 communicates with the interior of the hermetically sealed wall 50 via the insertion port 23 of the magazine 10. Therefore, the interior of the magazine transporting hermetically sealed container 20 is the large interior of the hermetically sealed wall 50. It is filled with dry air at a pressure higher than atmospheric pressure.

一方、シート状電極１を保持したマガジン１０は、Ｘ３で示されるように、ピストン装置５３の閉塞板５２上に移動せしめられる。次いで、閉塞板５２がピストン装置５３により上昇せしめられると、マガジン１０の底板１１がマガジン搬送用密閉容器２０のマガジン挿入口２３に密封的に固締され、ピストン装置５３の閉塞板５２がマガジン搬入搬出口５１を密封的に閉鎖する。マガジン搬入搬出口５１が閉塞板５２によって密封的に閉鎖されると、次いで、図１の矢印で示されるように、マガジン搬送用密閉容器２０が大気圧よりも高圧の乾燥空気により満たされている状態で、処理工程実施装置Ｂの密閉壁６０上に移動せしめられる。   On the other hand, the magazine 10 holding the sheet electrode 1 is moved onto the closing plate 52 of the piston device 53, as indicated by X3. Then, when the closing plate 52 is lifted by the piston device 53, the bottom plate 11 of the magazine 10 is hermetically fixed to the magazine insertion opening 23 of the closed container 20 for carrying the magazine, and the closing plate 52 of the piston device 53 is loaded into the magazine. The carry-out port 51 is hermetically closed. When the magazine loading / unloading port 51 is hermetically closed by the closing plate 52, then, as shown by the arrow in FIG. 1, the magazine transporting closed container 20 is filled with dry air having a pressure higher than atmospheric pressure. In this state, it is moved onto the sealing wall 60 of the processing step execution apparatus B.

このとき、処理工程実施装置Ｂのマガジン１０の搬入搬出口６１は、ピストン装置６３の閉塞板６２によって密封的に閉鎖されている。マガジン搬送用密閉容器２０が処理工程実施装置Ｂのマガジン１０の搬入搬出口６１上に載置されると、閉塞板６２がピストン装置６３によって、マガジン１０を載置した状態で下降し、図１においてＹ１で示される場所に移動せしめられる。このとき、マガジン搬送用密閉容器２０の内部は、密閉壁６０内の大気圧よりも高圧の乾燥空気によって再び満たされる。次いで、処理工程実施装置Ｂ内では、マガジン１０からシート状電極１が一枚ずつ取り出されて、シート状電極１上にアルミニウム箔２が貼付され、次いで、図３Ｃで示されるシート状電極１の積層体が生成される。   At this time, the loading / unloading port 61 of the magazine 10 of the processing step execution apparatus B is hermetically closed by the closing plate 62 of the piston device 63. When the closed magazine transporting container 20 is placed on the loading / unloading port 61 of the magazine 10 of the processing step execution apparatus B, the closing plate 62 is lowered by the piston device 63 while the magazine 10 is placed, At Y1, it is moved to the place indicated by Y1. At this time, the inside of the closed container 20 for carrying the magazine is filled again with the dry air having a pressure higher than the atmospheric pressure in the closed wall 60. Next, in the processing step execution apparatus B, the sheet-shaped electrodes 1 are taken out one by one from the magazine 10, the aluminum foil 2 is attached onto the sheet-shaped electrodes 1, and then the sheet-shaped electrodes 1 shown in FIG. A laminate is created.

Ｙ２で示されるようにマガジン１０が空になると、空のマガジン１０は、破線の矢印で示されるように、同様な方法で、マガジン搬送用密閉容器２０により処理工程実施装置Ａに搬送され、Ｘ１に示されるように処理工程実施装置Ａの密閉壁５０内に戻される。このときも、マガジン搬送用密閉容器２０の内部は、密閉壁６０内の大気圧よりも高圧の乾燥空気によって満たされている。   When the magazine 10 becomes empty as indicated by Y2, the empty magazine 10 is conveyed to the processing step execution apparatus A by the closed container 20 for magazine conveyance in the same manner as indicated by the broken line arrow, and X1 As shown in FIG. Also at this time, the inside of the closed container 20 for carrying the magazine is filled with the dry air having a pressure higher than the atmospheric pressure in the closed wall 60.

次に、処理工程実施装置Ａの密閉壁５０のマガジン搬入搬出口５１に取り付けられたマガジン搬送用密閉容器２０内に、マガジン１０が取り付けられたところを示す図４を参照しつつ、マガジン１０およびマガジン搬送用密閉容器２０の構造について詳細に説明する。図１を参照しつつ説明したように、シート状電極１を保持したマガジン１０は、Ｘ３で示されるように、ピストン装置５３の閉塞板５２上に移動せしめられ、次いで、閉塞板５２がピストン装置５３により上昇せしめられると、マガジン１０の底板１１がマガジン搬送用密閉容器２０のマガジン挿入口２３に内に密封的に固締され、ピストン装置５３の閉塞板５２がマガジン搬入搬出口５１を密封的に閉鎖する。図４はこのときを示している。   Next, referring to FIG. 4 showing a state where the magazine 10 is attached in the magazine transporting closed container 20 attached to the magazine loading / unloading port 51 of the sealing wall 50 of the processing step execution apparatus A, referring to FIG. The structure of the magazine transport closed container 20 will be described in detail. As described with reference to FIG. 1, the magazine 10 holding the sheet electrode 1 is moved onto the closing plate 52 of the piston device 53, as indicated by X3, and then the closing plate 52 is moved to the piston device. When it is raised by 53, the bottom plate 11 of the magazine 10 is hermetically fixed in the magazine insertion opening 23 of the magazine transport closed container 20, and the closing plate 52 of the piston device 53 seals the magazine loading / unloading port 51. To close. FIG. 4 shows this case.

図４を参照すると、マガジン搬送用密閉容器２０の底板２１の周辺部底壁面上には図５（Ａ）から（Ｃ）に示されるような複数個の凹溝２３が形成されており、これら凹溝２３にロックレバー２４が配置されている。ロックレバー２４の一端はヒンジピン２５により凹溝２３の内壁面に枢着されており、ロックレバー２４の他端にはマガジン１０の底板１１の周辺部底壁面と係合可能なベアリング２６が取り付けられている。このベアリング２６にはフックレバー７１のＵ字型先端部が係合している。一方、密閉壁５０の上壁面上には、矩形リング状の基台７０が固定されており、各フックレバー７１は基台７０内において摺動可能に支持されている。   Referring to FIG. 4, a plurality of recessed grooves 23 as shown in FIGS. 5A to 5C are formed on the peripheral bottom wall surface of the bottom plate 21 of the closed magazine transport container 20. A lock lever 24 is arranged in the groove 23. One end of the lock lever 24 is pivotally attached to the inner wall surface of the groove 23 by a hinge pin 25, and the other end of the lock lever 24 is provided with a bearing 26 engageable with the peripheral bottom wall surface of the bottom plate 11 of the magazine 10. ing. The U-shaped tip portion of the hook lever 71 is engaged with the bearing 26. On the other hand, a rectangular ring-shaped base 70 is fixed on the upper wall surface of the sealing wall 50, and each hook lever 71 is slidably supported in the base 70.

次にこのフックレバー７１の作動制御装置について、簡単に説明する。図６および図７を参照すると、フックレバー７１の外端部は、ガイドロッド７２により横方向に移動可能に支持されたフックレバー制御アーム７３の両端部に連結される。このフックレバー制御アーム７３の下端部は、基台７０の周辺部に沿ってコ字型に延びる制御板７４に形成されたカム溝７５と係合している。一方、コ字型制御板７４に形成されたカム溝７６には、基台７０により支持された制御モータ７７の回転軸に取り付けられたロッドが係合している。制御モータ７７が回転すると、コ字型制御板７４は基台７０の長手方向に移動する。このとき、カム溝７５と係合しているフックレバー制御アーム７３が横方向に移動し、その結果、全てのフックレバー７１が同時に基台７０内で摺動移動せしめられる。   Next, the operation control device for the hook lever 71 will be briefly described. Referring to FIGS. 6 and 7, the outer end of the hook lever 71 is connected to both ends of a hook lever control arm 73 supported by a guide rod 72 so as to be movable in the lateral direction. The lower end of the hook lever control arm 73 is engaged with a cam groove 75 formed in a control plate 74 extending in a U shape along the peripheral portion of the base 70. On the other hand, a rod attached to the rotation shaft of the control motor 77 supported by the base 70 is engaged with the cam groove 76 formed in the U-shaped control plate 74. When the control motor 77 rotates, the U-shaped control plate 74 moves in the longitudinal direction of the base 70. At this time, the hook lever control arm 73 engaged with the cam groove 75 moves laterally, and as a result, all the hook levers 71 are simultaneously slidably moved in the base 70.

再び、図４および図５に戻ると、ピストン装置５３の閉塞板５２上に載置されたマガジン１０を、基台７０に形成されたマガジン１０の搬入搬出口５１からマガジン搬送用密閉容器２０内に挿入するときには、フックレバー７１が図５（Ａ）に示される位置よりももっと左側の最大後退位置まで後退された状態で、ピストン装置５３により閉塞板５２がマガジン搬入搬出口５１内に密封的に押圧される。次いで、制御モータ７７によりフックレバー７１が図５（Ａ）に示される位置から図５（ｃ）に示される位置まで移動せしめられる。
フックレバー７１が図５（Ｃ）に示される位置まで移動せしめられると、マガジン搬送用密閉容器２０の底板２１と、マガジン１０の底板１１に配置されているＯリング２７によってマガジン搬送用密閉容器２０の内部は外気から完全に遮断され、更にロックレバー２４は図５（Ｃ）に示されるロック状態に保持される。 4 and 5, the magazine 10 placed on the closing plate 52 of the piston device 53 is transferred from the carry-in / carry-out port 51 of the magazine 10 formed on the base 70 into the closed container 20 for carrying the magazine. 5A, when the hook lever 71 is retracted to the maximum retracted position on the left side of the position shown in FIG. 5A, the closing plate 52 is hermetically sealed in the magazine loading / unloading port 51 by the piston device 53. Is pressed. Next, the control motor 77 moves the hook lever 71 from the position shown in FIG. 5 (A) to the position shown in FIG. 5 (c).
When the hook lever 71 is moved to the position shown in FIG. 5 (C), the bottom plate 21 of the magazine carrying closed container 20 and the O-ring 27 arranged on the bottom plate 11 of the magazine 10 are used to move the magazine carrying closed container 20. The inside of is completely shielded from the outside air, and the lock lever 24 is held in the locked state shown in FIG. 5 (C).

このようにマガジン搬送用密閉容器２０の内部が外気から完全に遮断され、ロックレバー２４がロック状態に保持されると、マガジン搬送用密閉容器２０が基台７０から取り外し可能となる。このときマガジン搬送用密閉容器２０が基台７０から取り外されると、マガジン搬送用密閉容器２０の内部は前述したように、大気圧よりも高圧の乾燥空気でもって満たされている。一方、マガジン搬送用密閉容器２０が基台７０から取り外された後は、フックレバー７１が図５（Ｃ）に示される位置に保持される。従って、一旦取り外されたマガジン搬送用密閉容器２０が再び基台７０に取り付けられたときには、ロックレバー２４のベアリング２６がフックレバー７１のＵ字型先端部内に侵入せしめられる。このときには、フックレバー７１が図５（Ｃ）に示される位置から最大後退位置まで後退され、その後、マガジン１０はピストン装置５３の閉塞板５２に載置された状態で密閉壁５０の内部まで下降せしめられる。なお、図６および図７に示されるように、マガジン搬送用密閉容器２０を基台７０に容易に取り付けられるように、基台７０上には多数のガイドローラ７８が設けられている。   As described above, when the inside of the magazine transporting hermetic container 20 is completely shielded from the outside air and the lock lever 24 is held in the locked state, the magazine transporting hermetic container 20 can be removed from the base 70. At this time, when the magazine transporting hermetic container 20 is removed from the base 70, the interior of the magazine transporting hermetic container 20 is filled with dry air having a pressure higher than atmospheric pressure, as described above. On the other hand, after the magazine transport closed container 20 is removed from the base 70, the hook lever 71 is held at the position shown in FIG. 5C. Therefore, when the magazine transporting closed container 20 that has been once removed is attached to the base 70 again, the bearing 26 of the lock lever 24 is caused to enter the U-shaped tip portion of the hook lever 71. At this time, the hook lever 71 is retracted from the position shown in FIG. 5C to the maximum retracted position, and then the magazine 10 is lowered to the inside of the sealing wall 50 while being mounted on the closing plate 52 of the piston device 53. Be punished. As shown in FIGS. 6 and 7, a large number of guide rollers 78 are provided on the base 70 so that the magazine transport closed container 20 can be easily attached to the base 70.

さて、マガジン１０の底板１１をマガジン搬送用密閉容器２０の底板２１にロックレバー２４を用いて固締するためには、マガジン１０の底板１１を、ピストン装置５３の閉塞板５２上の設定された位置に正確に載置する必要がある。そのために、図６および図７に示されるように、ピストン装置５３の閉塞板５２上には、位置決め用の一対のガイドピン５４，５５が設けられており、これらガイドピン５４，５５を受容するための一対の受容部１３，１４が、図８に示されるように、マガジン１０の底板１１の底壁面上に設けられている。図８および図９に示されるように、一方の受容部１３は、対応するガイドピン５４上を転動しかつ互いに９０度の角度間隔を隔てて配置された４個のベアリング１５からなり、他方の受容部１４は、対応するガイドピン５４上を転動しかつこれら受容部１３，１４を通る直線に対して直角方向に配置された一対のベアリング１６からなる。このようにベアリング１５、１６を用いることによって、ガイドピン５４，５５が受容部１３，１４内に挿入される際に切り屑が発生するのを回避することができる。   Now, in order to fasten the bottom plate 11 of the magazine 10 to the bottom plate 21 of the magazine transport closed container 20 by using the lock lever 24, the bottom plate 11 of the magazine 10 is set on the closing plate 52 of the piston device 53. It must be placed exactly in position. Therefore, as shown in FIGS. 6 and 7, a pair of guide pins 54, 55 for positioning are provided on the closing plate 52 of the piston device 53, and receive the guide pins 54, 55. As shown in FIG. 8, a pair of receiving portions 13 and 14 are provided on the bottom wall surface of the bottom plate 11 of the magazine 10. As shown in FIGS. 8 and 9, one receiving part 13 consists of four bearings 15 rolling on corresponding guide pins 54 and arranged at angular intervals of 90 degrees from each other, and The receiving portion 14 of the roller comprises a pair of bearings 16 rolling on the corresponding guide pins 54 and arranged at right angles to the straight line passing through these receiving portions 13, 14. By using the bearings 15 and 16 in this manner, it is possible to avoid generation of chips when the guide pins 54 and 55 are inserted into the receiving portions 13 and 14.

なお、マガジン搬送用密閉容器２０の搬送中はマガジン１０の底板１１が外気に露呈され、従って、マガジン１０の底板１１上には大気中の水分が付着する。従って、マガジン１０の底板１１をピストン装置５３の閉塞板５２上に載置して密閉壁５０の内部まで下降したときに、この水分が密閉壁５０内に散逸する危険性がある。従って、本発明による実施例では、この水分が密閉壁５０内に散逸しないように、図６および図７に示されるように、ピストン装置５３の閉塞板５２上には、吸引孔５６と、この吸引孔５６に連通する吸引溝５７が形成されており、吸引装置（図示せず）によって吸引孔５６から水分を吸引するようにしている。   Note that the bottom plate 11 of the magazine 10 is exposed to the outside air during the transportation of the closed container 20 for carrying the magazine, so that moisture in the atmosphere adheres to the bottom plate 11 of the magazine 10. Therefore, when the bottom plate 11 of the magazine 10 is placed on the closing plate 52 of the piston device 53 and lowered into the inside of the sealing wall 50, there is a risk that this moisture will be dissipated in the sealing wall 50. Therefore, in the embodiment according to the present invention, the suction hole 56 and the suction hole 56 are formed on the closing plate 52 of the piston device 53 as shown in FIGS. A suction groove 57 communicating with the suction hole 56 is formed, and moisture is sucked from the suction hole 56 by a suction device (not shown).

１ シート状電極
１０ マガジン
２０ マガジン搬送用密閉容器
５０、６０ 密閉壁
Ａ，Ｂ 処理工程実施装置 1 Sheet Electrode 10 Magazine 20 Magazine Transport Sealed Container 50, 60 Sealed Wall A, B Treatment Process Implementation Device

Claims (1)

複数の処理工程を経てシート状電極の積層体である電池が製造され、これら各処理工程を実施する処理工程実施装置間において、シート状電極を保持するマガジンを用いてシート状電極を搬送する電池製造装置において、処理工程実施装置を大気から遮断するために処理工程実施装置が密閉壁により包囲されており、該密閉壁内に、大気圧よりも高圧の乾燥空気が供給されており、該密閉壁内のマガジンを、マガジン搬送用密閉容器内に移動すると共にマガジン搬送用密閉容器内を、密閉壁内の大気圧よりも高圧の乾燥空気で満たし、マガジン搬送用密閉容器が、大気圧よりも高圧の乾燥空気により満たされた状態で、処理工程実施装置間を搬送される電池製造装置。   A battery that is a laminated body of sheet-shaped electrodes is manufactured through a plurality of processing steps, and a battery that conveys the sheet-shaped electrodes using a magazine that holds the sheet-shaped electrodes between the processing-step performing devices that perform these processing steps. In the manufacturing apparatus, the processing step executing device is surrounded by a sealing wall to shut off the processing step executing device from the atmosphere, and dry air having a pressure higher than atmospheric pressure is supplied to the sealing wall, and the sealing is performed. Move the magazine in the wall into the closed magazine transport container and fill the closed magazine transport magazine with dry air at a pressure higher than the atmospheric pressure in the closed wall so that the closed magazine transport container does not exceed the atmospheric pressure. A battery manufacturing device that is transported between processing process execution devices while being filled with high-pressure dry air.
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