JP2010199351A - Electric double-layer capacitor - Google Patents

Electric double-layer capacitor Download PDF

Info

Publication number
JP2010199351A
JP2010199351A JP2009043392A JP2009043392A JP2010199351A JP 2010199351 A JP2010199351 A JP 2010199351A JP 2009043392 A JP2009043392 A JP 2009043392A JP 2009043392 A JP2009043392 A JP 2009043392A JP 2010199351 A JP2010199351 A JP 2010199351A
Authority
JP
Japan
Prior art keywords
bottomed cylindrical
electric double
layer capacitor
insulating case
cylindrical insulating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2009043392A
Other languages
Japanese (ja)
Inventor
Kunitsugu Miyata
晋嗣 宮田
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.)
Tokin Corp
Original Assignee
NEC Tokin Corp
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 NEC Tokin Corp filed Critical NEC Tokin Corp
Priority to JP2009043392A priority Critical patent/JP2010199351A/en
Publication of JP2010199351A publication Critical patent/JP2010199351A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric double-layer capacitor having first and second lead terminal plates integrated with a bottomed cylindrical insulating case, having high heat resistance hardly breaking synthetic rubber for sealing even if the internal pressure of a laminated cell rises due to heat applied in reflow processing and facilitating discrimination of polarity when inserting a seat plate in a manufacturing process. <P>SOLUTION: The electric double-layer capacitor is formed by enclosing one basic cell or a laminated cell 10 with a plurality of basic cells laminated, between a metal case 1 and the bottomed cylindrical insulating case 4 incorporating positive and negative electrode lead terminals, and mounting terminal sections of the positive and negative lead terminals to the seat plate 9. A disk part 2a of the first lead terminal built in the bottomed cylindrical insulating case 4 has no notch. Further, the first and second lead terminals 2, 3 are taken out of unequal distances from the center of the bottomed cylindrical insulating case. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は電気二重層コンデンサに関するものである。   The present invention relates to an electric double layer capacitor.

電気二重層コンデンサは、短時間で充電でき、しかも二次電池と同じ使用形態で使用できるため、二次電池に替わる一時的な電子回路のバックアップ電源として使用されてきたが、最近では電気二重層コンデンサの静電容量の大容量化・耐電圧の上昇により、一次電池及びバッテリーに替わる電源に使用されている。   Electric double layer capacitors can be charged in a short time and can be used in the same form of use as secondary batteries, so they have been used as a backup power source for temporary electronic circuits that replace secondary batteries. Due to the increase in capacitance of capacitors and the increase in withstand voltage, they are used as power sources that replace primary batteries and batteries.

図４に電気二重層コンデンサの基本セルの断面構造を示す。電気二重層コンデンサの基本セルは、電極として、電解液を含浸した活性炭８を用い、この電極間にセパレータ６が挟まることにより、＋−電極間のショートを防止している。さらに、この両電極の背面に導電性集電体５を配置した構造となっている。電解液を含浸した活性炭８では、電解液中のイオンがセパレータ６を自由に行き来できるようになっている。   FIG. 4 shows a cross-sectional structure of a basic cell of the electric double layer capacitor. The basic cell of the electric double layer capacitor uses activated carbon 8 impregnated with an electrolytic solution as an electrode, and a separator 6 is sandwiched between the electrodes, thereby preventing a short circuit between + and-electrodes. Further, a conductive current collector 5 is disposed on the back surfaces of both electrodes. In the activated carbon 8 impregnated with the electrolytic solution, ions in the electrolytic solution can freely pass through the separator 6.

図５に従来技術による電気二重層コンデンサの断面構造を示す。図６に従来技術によるリード端子が組み込まれた有底円筒絶縁ケースの断面構造を示す。図７に従来技術による有底円筒絶縁ケース底部の内側に組み込まれるリード端子を示す。   FIG. 5 shows a cross-sectional structure of a conventional electric double layer capacitor. FIG. 6 shows a cross-sectional structure of a bottomed cylindrical insulating case in which a lead terminal according to the prior art is incorporated. FIG. 7 shows a lead terminal incorporated in the bottom of a bottomed cylindrical insulating case according to the prior art.

有底円筒絶縁ケース４の底部の内側には、図７に示した円板部２ａから端子部２ｂが引き出され端子部２ｂの引き出し部に切り欠きを有するリード端子板が組み込まれている。図４に示した基本セルを複数枚重ねた積層セル１０を図６に示す底部の外側に第二のリード端子が組み込まれた有底円筒絶縁ケース４の内側に収納し、金属ケース１を有底円筒絶縁ケース４の下部で、かしめる。   Inside the bottom of the bottomed cylindrical insulating case 4 is incorporated a lead terminal plate in which the terminal portion 2b is drawn from the disc portion 2a shown in FIG. 7 and a notch is formed in the lead portion of the terminal portion 2b. A stacked cell 10 in which a plurality of basic cells shown in FIG. 4 are stacked is housed inside a bottomed cylindrical insulating case 4 in which a second lead terminal is incorporated outside the bottom shown in FIG. Caulking at the bottom of the bottom cylindrical insulating case 4.

図５に示すように電気二重層コンデンサの引き出された第一のリード端子２と第二のリード端子３を座板９に挿入し、この座板９を介して第一、第二のリード端子２，３が９０°折り曲げられた構造となっている。製造工程において座板９を挿入する際、リード端子長さが同じであり、極性判別が容易ではないという問題があった。   As shown in FIG. 5, the first lead terminal 2 and the second lead terminal 3 drawn out of the electric double layer capacitor are inserted into the seat plate 9, and the first and second lead terminals are inserted through the seat plate 9. 2 and 3 are bent 90 °. When the seat plate 9 is inserted in the manufacturing process, there is a problem that the lead terminal length is the same and the polarity cannot be easily determined.

また、特許文献１では図７に示すように従来技術による有底円筒絶縁ケース底部に内側に組み込まれるリード端子において、円板部に端子部を取り付ける構造では接続のための工程を要するため、１枚の円板を打ち抜き曲げるだけの簡単な工程で製作できる切り欠きをもった形状になっていた。この場合電気二重層コンデンサをリフロー処理した際、リフローの熱により積層セル１０が熱膨張し、かしめ時の圧力が弱いリード端子板の切り欠き部分で封止用合成ゴム７が破れてしまう可能性があり、耐熱性に問題が生じていた。   Further, in Patent Document 1, as shown in FIG. 7, in a lead terminal incorporated inside the bottom of a bottomed cylindrical insulating case according to the prior art, the structure in which the terminal portion is attached to the disk portion requires a connection step. It had a shape with notches that could be manufactured by a simple process of punching and bending a single disk. In this case, when the electric double layer capacitor is reflowed, the laminated cell 10 is thermally expanded by the heat of reflow, and the sealing synthetic rubber 7 may be broken at the notch portion of the lead terminal plate where the pressure during caulking is weak. There was a problem in heat resistance.

特開２００７−１６５５１０号公報JP 2007-165510 A

本発明の課題は、有底円筒絶縁ケースと一体となる第一および第二のリード端子を有する電気二重層コンデンサにおいて、製造工程で座板を挿入する際、極性の判別が容易である電気二重層コンデンサを提供することにある。   An object of the present invention is to provide an electric double layer capacitor having first and second lead terminals that are integral with a bottomed cylindrical insulating case, and it is easy to determine the polarity when inserting a seat plate in the manufacturing process. It is to provide a multilayer capacitor.

また、リフロー処理時に加えられる熱によって積層セルの内部圧力が上昇しても封止用合成ゴムが破れにくく耐熱性が向上した電気二重層コンデンサを提供することにある。   Another object of the present invention is to provide an electric double layer capacitor in which the sealing synthetic rubber is hardly broken even when the internal pressure of the laminated cell is increased by heat applied during the reflow process, and the heat resistance is improved.

前記課題を解決するため、本発明の電気二重層コンデンサは、一個の基本セルまたは前記基本セルを複数個積層した積層セルを金属ケースと第一および第二のリード端子を組み込んだ有底円筒絶縁ケースとの間に収納し前記第一および第二のリード端子部を座板に挿入し座板の底部に沿って折り曲げられた電気二重層コンデンサであって前記有底円筒絶縁ケースの底部の内側に組み込まれた第一のリード端子が円板部と円板部の一部から引き出された端子部からなることを特徴とする。   In order to solve the above-mentioned problems, an electric double layer capacitor according to the present invention has a bottomed cylindrical insulation in which one basic cell or a stacked cell in which a plurality of the basic cells are stacked is incorporated with a metal case and first and second lead terminals. An electric double layer capacitor housed between the case and the first and second lead terminal portions inserted into the seat plate and bent along the bottom portion of the seat plate, the inner side of the bottom of the bottomed cylindrical insulating case The first lead terminal incorporated in the disk comprises a disk part and a terminal part drawn from a part of the disk part.

前記、有底円筒絶縁ケースから引き出された第一および第二のリード端子の長さが異なることを特徴とする。   The first and second lead terminals drawn out from the bottomed cylindrical insulating case have different lengths.

本発明の電気二重層コンデンサは、有底円筒絶縁ケースの中心から不均等な距離からリード端子を取り出すことでリード端子の長さに差をもたせ、極性の判別の容易でないことを解決することができる。   The electric double layer capacitor of the present invention can solve the problem that the polarity is not easily discriminated by taking the lead terminal out of an uneven distance from the center of the bottomed cylindrical insulating case, thereby causing a difference in the length of the lead terminal. it can.

また、有底円筒絶縁ケースの底部に組み込まれるリード端子板の切り欠きを無くした形状にしたため、かしめ時の圧力が積層セルに均一に加えることにより、有底円筒絶縁ケースの底部の強度が向上し、熱によって積層セルの内部圧力が上昇しても封止用合成ゴムが破れにくくなり、リフロー時の耐熱性の向上を見出したものである。   In addition, the shape of the lead terminal plate incorporated in the bottom of the bottomed cylindrical insulation case is eliminated, so that the pressure at the time of caulking is uniformly applied to the laminated cell, improving the strength of the bottom of the bottomed cylindrical insulation case. However, even if the internal pressure of the laminated cell is increased by heat, the sealing synthetic rubber is hardly broken, and the heat resistance at the time of reflow is improved.

本発明に係わる電気二重層コンデンサの断面図である。It is sectional drawing of the electric double layer capacitor concerning this invention. 本発明に係わるリード端子が組み込まれた有底円筒絶縁ケースの断面図である。It is sectional drawing of the bottomed cylindrical insulation case in which the lead terminal concerning this invention was integrated. 本発明に係わる有底円筒絶縁ケース底部の内側に組み込まれるリード端子の図である。It is a figure of the lead terminal integrated in the inner side of the bottom part of a bottomed cylindrical insulation case concerning this invention. 電気二重層コンデンサの基本セル構造の断面図である。It is sectional drawing of the basic cell structure of an electric double layer capacitor. 従来技術による電気二重層コンデンサの断面図である。It is sectional drawing of the electric double layer capacitor by a prior art. 従来技術によるリード端子が組み込まれた有底円筒絶縁ケースの断面図である。It is sectional drawing of the bottomed cylindrical insulation case in which the lead terminal by a prior art was integrated. 従来技術による有底円筒絶縁ケース底部の内側に組み込まれるリード端子の図である。It is a figure of the lead terminal integrated in the inside of a bottomed cylindrical insulation case bottom by a prior art.

本発明の電気二重層コンデンサの基本セルは、図４に示すように、二つの電解液を含浸した活性炭８の背面に導電性集電体５を配置し、側面には封止用合成ゴム７を配置した構造となっており基本セルは従来と同じ構造である。電気二重層コンデンサは、使用する電圧に応じて、基本セルを必要枚数積層して直列接続することにより校正される。基本セルの積層に際しては、基本セル同士の電気的接続を安定させるために、積層方向に一定の圧力を加えて外装する構造になっている。   As shown in FIG. 4, the basic cell of the electric double layer capacitor of the present invention has a conductive current collector 5 disposed on the back surface of activated carbon 8 impregnated with two electrolytes, and a synthetic rubber 7 for sealing on the side surface. The basic cell has the same structure as before. The electric double layer capacitor is calibrated by stacking the required number of basic cells and connecting them in series according to the voltage used. When the basic cells are stacked, in order to stabilize the electrical connection between the basic cells, the basic cell is structured to be applied with a certain pressure in the stacking direction.

電気二重層コンデンサの外装構造は、図１に示すように基本セルを複数枚積層した積層セル１０をＳＵＳ（ステンレス鋼）材等からなる金属ケース１と例えば厚さ０.２ｍｍのＳＰＣＣ（冷間圧延鋼帯）材等をプレス加工することにより成形される第一および第二のリード端子２、３が組み込まれた有底円筒絶縁ケース４の内側に収納し、金属ケース１をかしめた後、座板９に第一および第二リード端子２、３を挿入し、この座板を介してリード端子が９０°折り曲げられた構造となっている。この有底円筒絶縁ケース４は例えば結晶性ポリアミド樹脂を用い、内側の側壁はその厚みが開口部付近では薄く、底部に近づくにつれて厚くなるようにテーパが施されている。図２に示すように、リード端子板の組込み部分を凹状に射出成型して得られた有底円筒絶縁ケース４の外側にプレス加工により円板部と端子部が一体になった第一もしくは第二のリード端子を合わせるように取り付け、有底円筒絶縁ケース底部の内側にプレス加工により円板部と端子部が一体になった第一もしくは第二のリード端子２、３を取り付けたものである。   As shown in FIG. 1, the outer structure of the electric double layer capacitor is composed of a laminated cell 10 in which a plurality of basic cells are laminated, a metal case 1 made of a SUS (stainless steel) material, and a SPCC (cold cold) having a thickness of 0.2 mm, for example. (Rolled steel strip) After the first and second lead terminals 2 and 3 formed by pressing a material or the like are housed inside the bottomed cylindrical insulating case 4 and caulked the metal case 1, The first and second lead terminals 2 and 3 are inserted into the seat plate 9, and the lead terminals are bent 90 ° through the seat plate. The bottomed cylindrical insulating case 4 is made of, for example, crystalline polyamide resin, and the inner side wall is tapered so that its thickness is thin in the vicinity of the opening and becomes thicker as it approaches the bottom. As shown in FIG. 2, the first or second disc portion and terminal portion are integrated by pressing outside the bottomed cylindrical insulating case 4 obtained by injection molding the lead terminal plate into a concave shape. The first and second lead terminals 2 and 3 in which the disk portion and the terminal portion are integrated by pressing are attached inside the bottom of the bottomed cylindrical insulating case so as to match the two lead terminals. .

本発明の実施例１について図１を参照して説明する。本実施例の電気二重層コンデンサの寸法は、直径Ｄ寸法（１０．５ｍｍ）、高さ寸法（５．５ｍｍ）である。本実施例で用いた有底円筒絶縁ケース４の寸法は外形寸法（９．６ｍｍ）、開口部の内径寸法（９．１ｍｍ）、底部の内径寸法（８．７ｍｍ）、底部までの深さ寸法（３．９ｍｍ）であり、射出成形で作製した。前記有底円筒絶縁ケース４の底部の内側に射出成形時に組み込こまれた第一リード端子の寸法は円板部２ａが直径寸法（９．０ｍｍ）、端子部２ｂの長さ寸法（４．８ｍｍ）、同じく幅寸法（１．２ｍｍ）、同じく厚み寸法（０．２ｍｍ）である。   A first embodiment of the present invention will be described with reference to FIG. The electric double layer capacitor of this example has a diameter D (10.5 mm) and a height (5.5 mm). The dimensions of the bottomed cylindrical insulating case 4 used in this example are the outer dimensions (9.6 mm), the inner diameter of the opening (9.1 mm), the inner diameter of the bottom (8.7 mm), and the depth to the bottom. (3.9 mm) and produced by injection molding. The first lead terminal incorporated into the bottom of the bottomed cylindrical insulating case 4 at the time of injection molding has a diameter of the disk portion 2a (9.0 mm) and a length of the terminal portion 2b (4. 8 mm), the width dimension (1.2 mm), and the thickness dimension (0.2 mm).

尚、金属ケース１、および積層セル１０は公知の技術により作製した。積層セル１０を有底円筒絶縁ケース図２の内側に収納した後、金属ケース１にて、有底円筒絶縁ケース図２の下部で、かしめ封止を行い、本実施例の電気二重層コンデンサを完成させた。   The metal case 1 and the laminated cell 10 were produced by a known technique. After the stacked cell 10 is housed inside the bottomed cylindrical insulating case in FIG. 2, the metal case 1 is caulked and sealed at the bottom of the bottomed cylindrical insulating case in FIG. Completed.

比較例とするために従来技術による切り欠きをもったリード端子板（図７）を底部の内側に組み込んだ有底円筒絶縁ケース（図６）も射出成形で作製した。そして公知の技術により作製した積層セル１０を内側に収納した後、金属ケース１で、かしめ封止を実施し、従来技術の電気二重層コンデンサを作製した。   As a comparative example, a bottomed cylindrical insulating case (FIG. 6) in which a lead terminal plate (FIG. 7) having a notch according to the prior art was incorporated inside the bottom was also produced by injection molding. And after accommodating the laminated cell 10 produced by the well-known technique inside, it crimped and sealed with the metal case 1, and produced the electric double layer capacitor of the prior art.

本発明の有底円筒絶縁ケースを適用した電気二重層コンデンサと比較のための従来技術の有底円筒絶縁ケースを用いた電気二重層コンデンサを赤外線／熱風併用リフロー炉に通した。リフロー加熱後の封止用合成ゴムの破れた製品の個数を表１に示す。封止用合成ゴムの破れは目視外観、および１〜４倍程度の実体顕微鏡等で観察し、確認した。なお、赤外線／熱風併用リフロー炉における電気二重層コンデンサの温度条件は、コンデンサの上部表面でピーク温度：２４５℃、コンデンサの上部表面が２００℃以上の時間：１００秒である。   The electric double layer capacitor using the bottomed cylindrical insulating case of the prior art for comparison with the electric double layer capacitor using the bottomed cylindrical insulating case of the present invention was passed through an infrared / hot air combined reflow furnace. Table 1 shows the number of products in which the sealing synthetic rubber was torn after reflow heating. The tearing of the sealing synthetic rubber was confirmed by observing with a visual appearance and a stereoscopic microscope of about 1 to 4 times. The temperature condition of the electric double layer capacitor in the infrared / hot air combined reflow furnace is that the peak temperature is 245 ° C. on the upper surface of the capacitor, and the time that the upper surface of the capacitor is 200 ° C. or higher is 100 seconds.

Figure 2010199351
Figure 2010199351

表１に示すように、従来の比較例は赤外線／熱風併用リフローの熱により積層セル１０の内部圧力が上昇し、かしめ時の圧力が弱い部分で封止用合成ゴムが破れてしまうものがあるが、本発明の有底円筒絶縁ケースおよびリード端子板を適用した電気二重層コンデンサでは、リード端子板の切り欠きを無くした形状にしたため、かしめ時の圧力が均一にかけることができ、有底円筒絶縁ケースの底部の強度が向上し、耐熱性を向上することができた。   As shown in Table 1, in the conventional comparative example, the internal pressure of the laminated cell 10 is increased by the heat of reflow using both infrared and hot air, and the sealing synthetic rubber is broken at a portion where the pressure during caulking is weak. However, in the electric double layer capacitor to which the bottomed cylindrical insulating case and the lead terminal plate of the present invention are applied, since the lead terminal plate is not cut out, the pressure during caulking can be applied uniformly, The strength of the bottom of the cylindrical insulating case was improved and the heat resistance was improved.

本発明の実施例２について説明する。図２に示す本発明のリード端子板を底部の内側に組み込んだ有底円筒絶縁ケース４を用いた電気二重層コンデンサの第一および第二のリード端子の寸法を表２に示す。これは座板９に挿入し座板９の底部に沿って９０°に折り曲げる前の状態で確認できた第一および第二のリード端子の寸法である。   A second embodiment of the present invention will be described. Table 2 shows the dimensions of the first and second lead terminals of the electric double layer capacitor using the bottomed cylindrical insulating case 4 in which the lead terminal plate of the present invention shown in FIG. This is the dimension of the first and second lead terminals that can be confirmed before being inserted into the seat plate 9 and bent at 90 ° along the bottom of the seat plate 9.

Figure 2010199351
Figure 2010199351

次に、従来のリード端子板を適用した電気二重層コンデンサの有底円筒絶縁ケースの外側に組み込まれたリード端子の寸法を表３に示す。   Next, Table 3 shows the dimensions of the lead terminals incorporated outside the bottomed cylindrical insulating case of the electric double layer capacitor to which the conventional lead terminal plate is applied.

Figure 2010199351
Figure 2010199351

表２と表３の対比によって判明するように、本発明のリード端子板を適用した電気二重層コンデンサでは、第一のリード端子２と第二のリード端子３の長さが大きく異なっており、座板９に挿入する前に極性の判別を容易にすることができた。また、図１に示すように本発明のリード端子を適用した電気二重層コンデンサの第一のリード端子２と第二のリード端子３を座板９を介して座板９の底部に沿って９０°折り曲げた後の構造でも容易に極性を判別できた。   As can be seen from the comparison between Table 2 and Table 3, in the electric double layer capacitor to which the lead terminal plate of the present invention is applied, the lengths of the first lead terminal 2 and the second lead terminal 3 are greatly different. The polarity could be easily discriminated before being inserted into the seat plate 9. Further, as shown in FIG. 1, the first lead terminal 2 and the second lead terminal 3 of the electric double layer capacitor to which the lead terminal of the present invention is applied are placed along the bottom of the seat plate 9 through the seat plate 9. ° Polarity was easily discriminated even in the structure after bending.

１ 金属ケース
２ 第一のリード端子
２ａ （第一のリード端子）円板部
２ｂ （第一のリード端子）端子部
３ 第二のリード端子
３ａ （第二のリード端子）円板部
３ｂ （第二のリード端子）端子部
４ 有底円筒絶縁ケース
５ 導電性集電体
６ セパレータ
７ 封止用合成ゴム
８ 電解液を含浸した活性炭
９ 座板
１０ 積層セル DESCRIPTION OF SYMBOLS 1 Metal case 2 1st lead terminal 2a (1st lead terminal) Disk part 2b (1st lead terminal) Terminal part 3 2nd lead terminal 3a (2nd lead terminal) Disk part 3b (1st Second lead terminal) Terminal part 4 Bottomed cylindrical insulating case 5 Conductive current collector 6 Separator 7 Sealing synthetic rubber 8 Activated carbon impregnated with electrolyte 9 Seat plate 10 Multilayer cell

Claims (2)

一個の基本セルまたは前記基本セルを複数個積層した積層セルを金属ケースと第一および第二のリード端子を組み込んだ有底円筒絶縁ケースとの間に収納し前記第一および第二のリード端子部を座板に挿入し座板の底部に沿って折り曲げられた電気二重層コンデンサであって、前記有底円筒絶縁ケースの底部の内側に組み込まれた第一のリード端子が円板部と円板部の一部から引き出された端子部からなることを特徴とする電気二重層コンデンサ。   One basic cell or a laminated cell in which a plurality of the basic cells are stacked is housed between a metal case and a bottomed cylindrical insulating case incorporating first and second lead terminals, and the first and second lead terminals are stored. An electric double layer capacitor inserted into the seat plate and bent along the bottom of the seat plate, wherein the first lead terminal incorporated inside the bottom of the bottomed cylindrical insulating case has a disc portion and a circle. An electric double layer capacitor comprising a terminal portion drawn from a part of a plate portion. 前記、有底円筒絶縁ケースから引き出された第一および第二のリード端子の長さが異なることを特徴とする請求項１に記載の電気二重層コンデンサ。   2. The electric double layer capacitor according to claim 1, wherein the first and second lead terminals drawn from the bottomed cylindrical insulating case have different lengths.
JP2009043392A 2009-02-26 2009-02-26 Electric double-layer capacitor Pending JP2010199351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009043392A JP2010199351A (en) 2009-02-26 2009-02-26 Electric double-layer capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009043392A JP2010199351A (en) 2009-02-26 2009-02-26 Electric double-layer capacitor

Publications (1)

Publication Number Publication Date
JP2010199351A true JP2010199351A (en) 2010-09-09

Family

ID=42823767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009043392A Pending JP2010199351A (en) 2009-02-26 2009-02-26 Electric double-layer capacitor

Country Status (1)

Country Link
JP (1) JP2010199351A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014510405A (en) * 2011-02-28 2014-04-24 コーニング インコーポレイテッド Ultra capacitor package structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61138235U (en) * 1985-02-19 1986-08-27
JPS63121423U (en) * 1987-01-30 1988-08-05
JP2007165510A (en) * 2005-12-13 2007-06-28 Nec Tokin Corp Electric double layer capacitor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61138235U (en) * 1985-02-19 1986-08-27
JPS63121423U (en) * 1987-01-30 1988-08-05
JP2007165510A (en) * 2005-12-13 2007-06-28 Nec Tokin Corp Electric double layer capacitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014510405A (en) * 2011-02-28 2014-04-24 コーニング インコーポレイテッド Ultra capacitor package structure

Similar Documents

Publication Publication Date Title
DK3121865T3 (en) Rechargeable lithium-ion button cell battery
KR101792572B1 (en) Battery Cell Having Electrode Coated with Insulating Material
CN105609666A (en) Button cell
JP2012517658A (en) Button battery and method of manufacturing the same
WO2007055348A1 (en) Electric double layer capacitor
KR20190045130A (en) Sealed battery and sealed battery manufacturing method
TW201236037A (en) Ultracapacitor package design
TW201230104A (en) High voltage electric double layer capacitor device and methods of manufacture
JP2010153701A (en) Electrolytic capacitor
JP2007207920A (en) Capacitor
WO2014203051A1 (en) Sealed battery and manufacturing method of same
CN201352505Y (en) Metallized film power capacitor
JP5555827B2 (en) Non-aqueous electrolyte secondary battery and manufacturing method thereof
EP1324360A2 (en) Electric double layer capacitor and method of fabricating the same
JP2013232374A (en) Power storage device
JP2009200161A (en) Electric double layer capacitor
JP3736789B2 (en) Sealed battery
JP2010199351A (en) Electric double-layer capacitor
JP6066254B2 (en) Electric storage element and method for manufacturing electric storage element
JP4658682B2 (en) Electrochemical element
JP7343537B2 (en) secondary battery
KR20120091184A (en) Electrochemical cell and method for producing such a cell
US7995328B2 (en) Capacitor
JP2007165510A (en) Electric double layer capacitor
JP2010040959A (en) Electric double-layer capacitor

Legal Events

Date Code Title Description
A621 Written request for application examination

Effective date: 20110906

Free format text: JAPANESE INTERMEDIATE CODE: A621

A977 Report on retrieval

Effective date: 20120618

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Effective date: 20120620

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Effective date: 20121011

Free format text: JAPANESE INTERMEDIATE CODE: A02