JP4749581B2 - Manufacturing method of electric double layer capacitor module - Google Patents

Manufacturing method of electric double layer capacitor module Download PDF

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Publication number
JP4749581B2
JP4749581B2 JP2001084913A JP2001084913A JP4749581B2 JP 4749581 B2 JP4749581 B2 JP 4749581B2 JP 2001084913 A JP2001084913 A JP 2001084913A JP 2001084913 A JP2001084913 A JP 2001084913A JP 4749581 B2 JP4749581 B2 JP 4749581B2
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surface pressure
pressure
capacitor
double layer
capacitor cells
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JP2002289485A (en
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英雄 小野
正久 堀江
吉行 曽我
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UD Trucks Corp
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UD Trucks 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
    • Y02E60/13—Energy storage using capacitors

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  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

PROBLEM TO BE SOLVED: To ensure the good performance and good quality of an electric double layer capacitor module. SOLUTION: The electric double layer capacitor module is composed of a plurality of arranged capacitor cells 11, each composed of a fixed number of positive and negative electrodes alternately laminated with separators between them. The plurality of capacitor cells 11 are arranged in a unit assembling tool 12 comprising a pressurizing mechanism 15 for applying specified high plane pressure to the plurality of capacitor cells 11 in the arranging direction and a pressurizing force adjusting and maintaining mechanism 16 for adjusting to a specified plane pressure and maintaining the pressure.

Description

【０００１】
【発明の属する技術分野】
この発明は、キャパシタセルを複数個配列して構成する電気二重層キャパシタモジュールの製造方法に関する。
【０００２】
【従来の技術】
近年、各種の蓄電装置（電動自動車の駆動電源等）として、急速充電が可能で充放電サイクル寿命が長い、電気二重層キャパシタ（電気二重層コンデンサ）の適用技術が注目される。
【０００３】
電気二重層キャパシタは、キャパシタセルとして、一定数の正極体と負極体をこれらの間にセパレータを介在して交互に積層され、これらの積層体が電解液に浸され、外装体に収容される。
【０００４】
図４は、電気二重層キャパシタの電極構造の１例を示すもので、１は正極体の給電極、２は負極体の集電極であり、アルミ箔を同形同大に形成され、その矩形平面の片側に活性炭電極（分極性電極）が構成される（特開２０００−２５２１７５号、特開平１１−５４３８８号参照）。
【０００５】
【発明が解決しようとする課題】
このようなキャパシタセルは、適度の加圧を行うことで、内部抵抗性能の向上に大きく貢献する。
【０００６】
一方、キャパシタセルは、複数個配列してキャパシタモジュールとして使用するようになっている。
【０００７】
しかし、キャパシタモジュールの組立にバラツキがあると、性能が低下し、キャパシタセルの早期劣化を招くという問題がある。
【０００８】
この発明は、このような問題点を解決した電気二重層キャパシタモジュールの製造方法を提供することを目的としている。
【０００９】
【課題を解決するための手段】
第１の発明は、一定数の正極体と負極体をこれらの間にセパレータを介在して交互に積層して構成されるキャパシタセルを、複数個配列して構成される電気二重層キャパシタモジュールの製造方法において、予めセル単体に第１の所定面圧を加えて性能を検査してある複数個のキャパシタセルをユニット組具に配列して、その複数個のキャパシタセルに配列方向に所定時間、加圧機構を用いて前記第１の所定面圧とほぼ同一の面圧を加えた後、加圧調整維持機構を用いて前記キャパシタセルの配列方向に加える加圧力を実用時の面圧に相当する第２の所定面圧に調圧してなることを特徴とする。
【００１０】
第２の発明は、一定数の正極体と負極体をこれらの間にセパレータを介在して交互に積層して構成されるキャパシタセルを、複数個配列して構成される電気二重層キャパシタモジュールの製造方法において、予めセル単体に第１の所定面圧を加えて性能を検査してある複数個のキャパシタセルをユニット組具に配列して、その複数個のキャパシタセルに配列方向に所定時間、加圧機構を用いて前記第１の所定面圧とほぼ同一の面圧を加えた後、バネ手段を有する加圧調整維持機構を用いて前記キャパシタセルの配列方向に加える加圧力を実用時の面圧に相当する第２の所定面圧に調圧してなることを特徴とする。
【００１３】
【発明の効果】
第１の発明によれば、各キャパシタセルに第１の所定面圧を加えて、それぞれのセル内部の積層体を均一に密着でき、内部抵抗性能が大きく向上すると共に、各セルの安定した品質を確保することができる。また、各キャパシタセルの面圧を第２の所定面圧に調圧して維持するため、実用時に各セル内部の積層体の密着を保って、各セルの良好な性能を維持できる。
第２の発明によれば、加圧調整機構のバネ手段により、充放電時の電解液の膨張収縮を吸収でき、各セルの性能を安定して維持できる。
【００１４】
第２の発明によれば、電気二重層キャパシタモジュールを簡素化できる。
【００１７】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
【００１８】
図１において、１１はキャパシタセルを、１２はキャパシタモジュール１０のユニット組具を示す。
【００１９】
キャパシタセル１１は、一定数の正極体と負極体をこれらの間にセパレータを介在して交互に積層され、外装体１３に収容される。
【００２０】
そして、真空状態で、外装体１３内に電解液が注入され、セル１１単体の検査が行われる。
【００２１】
これは、セル１１単体に所定の高面圧を加えて性能等が測定される。所定の高面圧を加えることで、セル１１内部の積層体が密着され、また積層体に電解液が過剰に入り込むのが防止される。
【００２２】
そして、一定の性能範囲のキャパシタセル１１が、所定数、キャパシタモジュール１０のユニット組具１２を構成するボックスタイプのケース１４に配列、収容される。
【００２３】
ユニット組具１２のケース１４の片側には、これらのキャパシタセル１１に配列方向に所定の高面圧を加える加圧機構１５と、所要面圧に調圧して維持する加圧力調整維持機構１６とが設けられる。
【００２４】
加圧機構１５と加圧力調整維持機構１６とは、後述のスプリング２２を除いて共通の部品からなり、押しボルト１７と、押しプレート１８と、最前列のキャパシタセル１１の面に当接して押しボルト１７の押圧力をキャパシタセル１１の配列方向に伝えるプレッシャピストン１９と、ロックナット２０と、ストッパ２１等から構成される。
【００２５】
そして、ケース１４に配列、収容された各キャパシタセル１１は、その配列方向に所定の高面圧が所定時間加えられる。
【００２６】
この場合、スプリング２２を外しておき、真空状態かつそれぞれのキャパシタセル１１の外装体１３内に電解液が注入された状態で、押しボルト１７を規定値まで締め込み、押しプレート１８、プレッシャピストン１９を介して各キャパシタセル１１に所定の高面圧を所定時間加える。この面圧は、検査時にセル１１単体に加えた面圧とほぼ同一の面圧が加えられる。
【００２７】
そして、所定時間経過後、各キャパシタセル１１の面圧は所要面圧（実用時の面圧）に調圧され、維持される。
【００２８】
この場合、押しボルト１７をセット値まで戻し、この状態において、プレッシャピストン１９とストッパ２１との間にセット治具（図示しない）を入れる。次いで、押しボルト１７を後退し、押しプレート１８を外してスプリング２２をプレッシャピストン１９のスプリング孔に挿入し、再び押しプレート１８を組み入れ、押しボルト１７を締め込み押しプレート１８の押し量を管理して、各キャパシタセル１１の面圧を所要面圧に調圧する。この後、ロックナット２０により、押しボルト１７、ストッパ２１が固定され、また各セル１１の外装体１３が密封される。
【００２９】
このように、キャパシタモジュール１０を構成するのであり、ケース１４に配列、収容した各キャパシタセル１１に、その配列方向に所定の高面圧を所定時間加えるため、それぞれのセル１１内部の積層体を均一に密着でき、内部抵抗性能が大きく向上する。また、積層体に電解液が過剰に入り込むことがなく、各セル１１の安定した品質を確保することができる。
【００３０】
そして、各キャパシタセル１１に所定の高面圧を所定時間加えた後、各キャパシタセル１１の面圧を所要面圧（実用時の面圧）に調圧して、実用時にその面圧を維持する（スプリング２２により維持）ため、実用時に各セル１１内部の積層体の均一な密着を保って、各セル１１の良好な性能を維持できる一方、スプリング２２を用いたため、充放電時の電解液の膨張収縮を吸収することができ、各セル１１の性能を安定して維持できる。
【００３１】
図２は本発明の第２の実施の形態を示す。これは、キャパシタモジュール１０のユニット組具１２に締め付けバンド３０を用いたものである。
【００３２】
この場合、加圧機構３１、加圧力調整維持機構３２として、ユニット組具１２の先端側に外部装置の図示しない油圧機等の押圧力を伝える押さえプレート３３（伝達機構）、皿バネ３４（伝達機構）、最前列のキャパシタセル１１の面に当接するプレッシャピストン３５が配設されると共に、後端側に最後列のキャパシタセル１１の面を受ける受けプレート３６が配設される。
【００３３】
そして、プレッシャピストン３５と受けプレート３６との間に所定数のキャパシタセル１１を配列した状態で、油圧機等で押さえプレート３３、皿バネ３４、プレッシャピストン３５を介して規定値まで加圧し、所定の高面圧を所定時間加える。
【００３４】
所定時間経過後、その加圧力をセット値まで戻し（皿バネ３４のセット荷重となる）、押さえプレート３３、受けプレート３６に締め付けバンド３０を掛け、固定する。これにより、各キャパシタセル１１の面圧は所要面圧（実用時の面圧）を維持する。
【００３５】
このようにしても、実用時に各セル１１内部の積層体の均一な密着を保って、各セル１１の性能を良好に、安定に維持できる。
【００３６】
なお、締め付けバンド３０の代わりに通しボルトを用いるものでも良い。
【００３７】
図３は本発明の第３の実施の形態を示す。これは、キャパシタセル１１に加える面圧を測定するようにしたものである。
【００３８】
この場合、所定数のキャパシタセル１１を両側にフィルム状の圧力分布センサ４０を設けた加圧器４１に配列する。次に、測定器４５のデータを見ながら、押しボルト４２を締め込み、所定の高面圧に設定する。このとき、圧力分布が均一（許容範囲）なことを確認する。そして、許容範囲であれば、所定時間経過後、キャパシタセル１１を加圧器４１から外して、所要面圧を加えるスプリング４３を備えたモジュールケース４４にセットする。
【００３９】
このようにすれば、各セル１１に高面圧を精度良く加えることができ、キャパシタモジュール１０の安定した品質を確保することができる。
【００４０】
なお、各実施の形態において、バネ手段として、ガス圧機構、液圧機構を設けても良い。
【図面の簡単な説明】
【図１】第１の実施の形態を示す構成断面図である。
【図２】第２の実施の形態を示す構成断面図である。
【図３】第３の実施の形態を示す構成断面図である。
【図４】従来技術の説明図である。
【符号の説明】
１１ キャパシタセル
１２ ユニット組具
１４ ケース
１５ 加圧機構
１６ 加圧力調整維持機構
２２ スプリング
３０ 締め付けバンド
３１ 加圧機構
３２ 加圧力調整維持機構
３３ 押さえプレート
３４ 皿バネ
４０ 圧力分布センサ
４１ 加圧器
４３ スプリング
４４ モジュールケース[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing an electric double layer capacitor module in which a plurality of capacitor cells are arranged.
[0002]
[Prior art]
2. Description of the Related Art In recent years, attention has been focused on application technologies of electric double layer capacitors (electric double layer capacitors) that can be rapidly charged and have a long charge / discharge cycle life as various power storage devices (such as drive power sources for electric vehicles).
[0003]
An electric double layer capacitor is a capacitor cell in which a certain number of positive and negative electrode bodies are alternately stacked with a separator interposed therebetween, and these stacked bodies are immersed in an electrolytic solution and accommodated in an exterior body. .
[0004]
FIG. 4 shows an example of an electrode structure of an electric double layer capacitor. 1 is a positive electrode supply electrode, 2 is a negative electrode collector electrode, and an aluminum foil is formed in the same shape and size. An activated carbon electrode (polarizable electrode) is formed on one side of the plane (see Japanese Patent Application Laid-Open Nos. 2000-252175 and 11-54388).
[0005]
[Problems to be solved by the invention]
Such a capacitor cell greatly contributes to the improvement of the internal resistance performance by performing moderate pressurization.
[0006]
On the other hand, a plurality of capacitor cells are arranged and used as a capacitor module.
[0007]
However, if there is variation in the assembly of the capacitor module, there is a problem that the performance is lowered and the capacitor cell is prematurely deteriorated.
[0008]
An object of this invention is to provide the manufacturing method of the electrical double layer capacitor module which solved such a problem.
[0009]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided an electric double layer capacitor module configured by arranging a plurality of capacitor cells in which a certain number of positive electrode bodies and negative electrode bodies are alternately stacked with separators interposed therebetween. In the manufacturing method, a plurality of capacitor cells that have been inspected for performance by applying a first predetermined surface pressure to a single cell in advance are arranged in a unit assembly, and the plurality of capacitor cells are arranged in the arrangement direction for a predetermined time, After applying a surface pressure substantially the same as the first predetermined surface pressure using a pressure mechanism, the pressure applied in the arrangement direction of the capacitor cells using the pressure adjustment maintaining mechanism is equivalent to a surface pressure in practical use. The pressure is adjusted to the second predetermined surface pressure .
[0010]
According to a second aspect of the present invention, there is provided an electric double layer capacitor module configured by arranging a plurality of capacitor cells in which a certain number of positive electrode bodies and negative electrode bodies are alternately stacked with separators interposed therebetween. In the manufacturing method, a plurality of capacitor cells that have been inspected for performance by applying a first predetermined surface pressure to a single cell in advance are arranged in a unit assembly, and the plurality of capacitor cells are arranged in the arrangement direction for a predetermined time, After applying substantially the same surface pressure as the first predetermined surface pressure using a pressurizing mechanism, a pressurizing force applied in the arrangement direction of the capacitor cells using a pressurization adjusting and maintaining mechanism having a spring means is applied in practical use. The pressure is adjusted to a second predetermined surface pressure corresponding to the surface pressure .
[0013]
【The invention's effect】
According to the first invention, the first predetermined surface pressure is applied to each capacitor cell, the stacked body inside each cell can be uniformly adhered, the internal resistance performance is greatly improved, and the stable quality of each cell. Can be secured. Further, To maintain the surface pressure of each capacitor cell by regulating the second predetermined surface pressure, while maintaining a close contact of the laminate within each cell for practical use when, can maintain a good performance of the cells.
According to the second invention, the spring means of the pressure adjusting mechanism can absorb the expansion and contraction of the electrolyte during charging and discharging, and the performance of each cell can be stably maintained.
[0014]
According to the second invention, the electric double layer capacitor module can be simplified.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
In FIG. 1, reference numeral 11 denotes a capacitor cell, and 12 denotes a unit assembly of the capacitor module 10.
[0019]
In the capacitor cell 11, a certain number of positive electrode bodies and negative electrode bodies are alternately stacked with a separator interposed therebetween, and are accommodated in the outer package 13.
[0020]
And in a vacuum state, electrolyte solution is inject | poured in the exterior body 13, and the cell 11 single-piece | unit is test | inspected.
[0021]
In this case, a performance or the like is measured by applying a predetermined high surface pressure to the cell 11 alone. By applying a predetermined high surface pressure, the laminated body inside the cell 11 is brought into close contact, and the electrolyte solution is prevented from entering the laminated body excessively.
[0022]
A predetermined number of capacitor cells 11 having a certain performance range are arranged and accommodated in a box-type case 14 constituting the unit assembly 12 of the capacitor module 10.
[0023]
On one side of the case 14 of the unit assembly 12, a pressurizing mechanism 15 that applies a predetermined high surface pressure to the capacitor cells 11 in the arrangement direction, and a pressurizing adjustment maintaining mechanism 16 that adjusts and maintains the required surface pressure. Is provided.
[0024]
The pressurizing mechanism 15 and the pressurizing adjustment maintaining mechanism 16 are made up of common parts except for a spring 22 which will be described later. The pressure piston 19 transmits the pressing force of the bolt 17 in the arrangement direction of the capacitor cell 11, a lock nut 20, a stopper 21 and the like.
[0025]
A predetermined high surface pressure is applied to the capacitor cells 11 arranged and accommodated in the case 14 for a predetermined time in the arrangement direction.
[0026]
In this case, the spring 22 is removed, and the push bolt 17 is tightened to a specified value in a vacuum state and the electrolyte is injected into the exterior body 13 of each capacitor cell 11, and the push plate 18 and the pressure piston 19 are tightened. A predetermined high surface pressure is applied to each capacitor cell 11 for a predetermined time. The surface pressure is almost the same as the surface pressure applied to the cell 11 alone at the time of inspection.
[0027]
And after predetermined time progress, the surface pressure of each capacitor cell 11 is adjusted and maintained by required surface pressure (surface pressure at the time of practical use).
[0028]
In this case, the push bolt 17 is returned to the set value, and in this state, a setting jig (not shown) is inserted between the pressure piston 19 and the stopper 21. Next, the push bolt 17 is retracted, the push plate 18 is removed, the spring 22 is inserted into the spring hole of the pressure piston 19, the push plate 18 is reinserted, the push bolt 17 is tightened, and the pushing amount of the push plate 18 is controlled. Thus, the surface pressure of each capacitor cell 11 is adjusted to the required surface pressure. Thereafter, the push bolt 17 and the stopper 21 are fixed by the lock nut 20, and the exterior body 13 of each cell 11 is sealed.
[0029]
Thus, the capacitor module 10 is configured, and a predetermined high surface pressure is applied to the capacitor cells 11 arranged and accommodated in the case 14 in the arrangement direction for a predetermined time. Uniform adhesion is achieved, and the internal resistance performance is greatly improved. In addition, the electrolyte does not excessively enter the laminate, and stable quality of each cell 11 can be ensured.
[0030]
Then, after applying a predetermined high surface pressure to each capacitor cell 11 for a predetermined time, the surface pressure of each capacitor cell 11 is adjusted to a required surface pressure (surface pressure in practical use), and the surface pressure is maintained in practical use. (Maintained by the spring 22) Therefore, it is possible to maintain the uniform adhesion of the laminated body inside each cell 11 during practical use and maintain the good performance of each cell 11, while the spring 22 is used. Expansion and contraction can be absorbed, and the performance of each cell 11 can be stably maintained.
[0031]
FIG. 2 shows a second embodiment of the present invention. In this configuration, the fastening band 30 is used for the unit assembly 12 of the capacitor module 10.
[0032]
In this case, as the pressurization mechanism 31 and the pressurization adjustment maintaining mechanism 32, a pressing plate 33 (transmission mechanism) that transmits a pressing force of a hydraulic machine (not shown) of the external device to the distal end side of the unit assembly 12 and a disc spring 34 (transmission) Mechanism), a pressure piston 35 that abuts against the surface of the capacitor cell 11 in the foremost row is disposed, and a receiving plate 36 that receives the surface of the capacitor cell 11 in the last row is disposed at the rear end side.
[0033]
Then, in a state where a predetermined number of capacitor cells 11 are arranged between the pressure piston 35 and the receiving plate 36, the pressure is increased to a predetermined value via the pressing plate 33, the disc spring 34, and the pressure piston 35 with a hydraulic machine or the like. The high surface pressure is applied for a predetermined time.
[0034]
After a predetermined time has elapsed, the applied pressure is returned to the set value (becomes a set load of the disc spring 34), and the fastening band 30 is applied to the holding plate 33 and the receiving plate 36 and fixed. Thereby, the surface pressure of each capacitor cell 11 maintains a required surface pressure (surface pressure in practical use).
[0035]
Even if it does in this way, the uniform contact | adherence of the laminated body inside each cell 11 is maintained at the time of practical use, and the performance of each cell 11 can be maintained favorable and stably.
[0036]
Note that a through bolt may be used instead of the fastening band 30.
[0037]
FIG. 3 shows a third embodiment of the present invention. In this case, the surface pressure applied to the capacitor cell 11 is measured.
[0038]
In this case, a predetermined number of capacitor cells 11 are arranged in a pressurizer 41 provided with a film-like pressure distribution sensor 40 on both sides. Next, while watching the data of the measuring instrument 45, the push bolt 42 is tightened to set a predetermined high surface pressure. At this time, it is confirmed that the pressure distribution is uniform (allowable range). And if it is a tolerance | permissible_range, after the predetermined time passes, the capacitor cell 11 will be removed from the pressurizer 41, and it will set in the module case 44 provided with the spring 43 which applies a required surface pressure.
[0039]
In this way, high surface pressure can be applied to each cell 11 with high accuracy, and stable quality of the capacitor module 10 can be ensured.
[0040]
In each embodiment, a gas pressure mechanism or a hydraulic mechanism may be provided as the spring means.
[Brief description of the drawings]
FIG. 1 is a structural cross-sectional view showing a first embodiment.
FIG. 2 is a structural cross-sectional view showing a second embodiment.
FIG. 3 is a structural sectional view showing a third embodiment.
FIG. 4 is an explanatory diagram of the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Capacitor cell 12 Unit assembly 14 Case 15 Pressurization mechanism 16 Pressurization adjustment maintenance mechanism 22 Spring 30 Fastening band 31 Pressurization mechanism 32 Pressurization adjustment maintenance mechanism 33 Holding plate 34 Disc spring 40 Pressure distribution sensor 41 Pressurizer 43 Spring 44 Module case

Claims (2)

一定数の正極体と負極体をこれらの間にセパレータを介在して交互に積層して構成されるキャパシタセルを、複数個配列して構成される電気二重層キャパシタモジュールの製造方法において、
予めセル単体に第１の所定面圧を加えて性能を検査してある複数個のキャパシタセルをユニット組具に配列して、その複数個のキャパシタセルに配列方向に所定時間、加圧機構を用いて前記第１の所定面圧とほぼ同一の面圧を加えた後、加圧調整維持機構を用いて前記キャパシタセルの配列方向に加える加圧力を実用時の面圧に相当する第２の所定面圧に調圧してなることを特徴とする電気二重層キャパシタモジュールの製造方法。 In the manufacturing method of the electric double layer capacitor module configured by arranging a plurality of capacitor cells configured by alternately laminating a certain number of positive and negative electrode bodies with separators interposed therebetween,
A plurality of capacitor cells whose performance has been inspected by applying a first predetermined surface pressure to a single cell in advance are arranged in a unit assembly, and a pressurizing mechanism is provided in the arrangement direction for a predetermined time in the plurality of capacitor cells. After applying a surface pressure that is substantially the same as the first predetermined surface pressure, a pressure applied in the arrangement direction of the capacitor cells using a pressurization adjustment maintaining mechanism is applied to a second surface pressure that corresponds to a surface pressure in practical use. A method for producing an electric double layer capacitor module, characterized by adjusting pressure to a predetermined surface pressure . 一定数の正極体と負極体をこれらの間にセパレータを介在して交互に積層して構成されるキャパシタセルを、複数個配列して構成される電気二重層キャパシタモジュールの製造方法において、
予めセル単体に第１の所定面圧を加えて性能を検査してある複数個のキャパシタセルをユニット組具に配列して、その複数個のキャパシタセルに配列方向に所定時間、加圧機構を用いて前記第１の所定面圧とほぼ同一の面圧を加えた後、バネ手段を有する加圧調整維持機構を用いて前記キャパシタセルの配列方向に加える加圧力を実用時の面圧に相当する第２の所定面圧に調圧してなることを特徴とする電気二重層キャパシタモジュールの製造方法。 In the manufacturing method of the electric double layer capacitor module configured by arranging a plurality of capacitor cells configured by alternately laminating a certain number of positive and negative electrode bodies with separators interposed therebetween,
A plurality of capacitor cells whose performance has been inspected by applying a first predetermined surface pressure to a single cell in advance are arranged in a unit assembly, and a pressurizing mechanism is provided in the arrangement direction for a predetermined time in the plurality of capacitor cells. The pressure applied in the arrangement direction of the capacitor cells using a pressurization adjustment maintaining mechanism having a spring means after applying a surface pressure substantially the same as the first predetermined surface pressure is equivalent to a surface pressure in practical use. A method for manufacturing an electric double layer capacitor module, wherein the pressure is adjusted to a second predetermined surface pressure .
JP2001084913A 2001-03-23 2001-03-23 Manufacturing method of electric double layer capacitor module Expired - Fee Related JP4749581B2 (en)

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