JP2001284195A - Laminated electric double-layer capacitor - Google Patents
Laminated electric double-layer capacitorInfo
- Publication number
- JP2001284195A JP2001284195A JP2000093625A JP2000093625A JP2001284195A JP 2001284195 A JP2001284195 A JP 2001284195A JP 2000093625 A JP2000093625 A JP 2000093625A JP 2000093625 A JP2000093625 A JP 2000093625A JP 2001284195 A JP2001284195 A JP 2001284195A
- Authority
- JP
- Japan
- Prior art keywords
- electric double
- layer capacitor
- double layer
- pressure
- unit
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ゲル状電解質を用
いた積層型電気二重層キャパシタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multilayer electric double layer capacitor using a gel electrolyte.
【０００２】[0002]
【従来の技術】現在パソコンやオフコンのバックアップ
電源に用いられている電気二重層キャパシタはさらなる
大容量化、長寿命化が求められている。電気二重層キャ
パシタは分極性電極に電解質中のアニオン、カチオンを
正極、負極表面に物理吸着させて電気を蓄えることを原
理としている。現在の電気二重層キャパシタは、平板状
の活性炭電極、集電極を用意し、四フッ化ホウ素（ＢＦ
4）系ゲル状電解質と中間電極とを交互に積層した複数
個のセルよりなる「積層型」である。活性炭電極、集電
極の外周部には内部の電解質が漏れ出さないように、シ
ールを行うためのパツキンを挟んでいる。このパッキン
は同時に積層間での絶縁も兼ねている。2. Description of the Related Art Electric double layer capacitors used as backup power supplies for personal computers and office computers are required to have even larger capacities and longer lifespans. The electric double layer capacitor is based on the principle that anions and cations in an electrolyte are physically adsorbed on the surfaces of a positive electrode and a negative electrode on a polarizable electrode to store electricity. The current electric double layer capacitor prepares a plate-shaped activated carbon electrode and a collector electrode, and uses boron tetrafluoride (BF
4 ) It is a "laminated type" consisting of a plurality of cells in which a system gel electrolyte and an intermediate electrode are alternately laminated. A packing for sealing is sandwiched between the outer periphery of the activated carbon electrode and the collecting electrode so that the internal electrolyte does not leak. This packing also serves as insulation between the layers at the same time.
【０００３】電気二重層キャパシタの組立を行う際に
は、必要な耐電圧分のセルをパッキンと交互に積み重ね
（単セル耐電圧２．５Ｖ程度）最後にエンドプレートで
締め付けることにより密閉構造を保っている。積層型電
気二重層キャパシタユニツトは金属電極端面の集電極に
リード線を取り付ければ、ユニット内で直列接続とな
り、（単セル耐電圧）×（積層数）だけの耐電圧を持つ
ことになる。この積層型電気二重層キャパシタユニット
は、一般的な巻き取り方式を用いた同一容量の電気二重
層キャパシタと比較してケーブル等を必要とせず、コン
パクトに耐電圧が高く設計できるため設置面積を小さく
することができる。When assembling an electric double layer capacitor, cells of a required withstand voltage are alternately stacked with packing (single cell withstand voltage of about 2.5 V), and finally a closed structure is maintained by tightening with an end plate. ing. If a lead wire is attached to the collector electrode on the end face of the metal electrode, the multilayer electric double layer capacitor unit will be connected in series in the unit, and will have a withstand voltage of (single cell withstand voltage) × (number of stacked layers). This multilayer electric double layer capacitor unit does not require cables, etc., as compared with an electric double layer capacitor of the same capacity using a general winding method, and can be designed to be compact and high withstand voltage, so that the installation area is small. can do.
【０００４】[0004]
【発明が解決しようとする課題】電解質を用いた電気二
重層キャパシタは、電解質に含まれる水分や充放電によ
り電圧を加えることが原因で、二酸化炭素を主成分とす
る分解ガスが発生する。ガスの発生量は含まれる水分
量、電圧値によって変化し、ある電圧値を超えると急激
に発生する。積層型電気二重層キャパシタユニットにお
いては、各セル間で抵抗、静電容量がわずかに異なって
いることが原因で連続充放電を行うと各セルの分担電圧
に差が生じてくる。In an electric double layer capacitor using an electrolyte, a decomposition gas containing carbon dioxide as a main component is generated due to moisture contained in the electrolyte or application of a voltage due to charge and discharge. The amount of generated gas varies depending on the amount of moisture contained and the voltage value, and is generated rapidly when a certain voltage value is exceeded. In the multilayer electric double-layer capacitor unit, when the charge and discharge are performed continuously due to a slight difference in resistance and capacitance between the cells, a difference occurs in the shared voltage of each cell.
【０００５】分担電圧に差が生じると発生するガスの量
が変化して各セルの内圧に差が生じるようになる。この
圧力が低いセルは極間が縮められ、高いセルは極間が開
こうとする方向に力が加わり、接触抵抗が変化する。こ
うしてセル間の接触抵抗に差が生じると、充放電時の分
担電圧にばらつきが生じる様になる。図４に示すよう
に、分担電圧の高くなった特定のセルは、耐電圧値を超
えると急激にガスが発生して、更に内圧が上昇して抵抗
が高くなる。図４に示す故障サイクルが加速度的に進む
と、最終的には、特定セルの電極間の接触が途切れ絶縁
状態（オープン故障）になり、電気二重層キャパシタと
して作動しなくなってしまう。[0005] When a difference occurs in the shared voltage, the amount of gas generated changes, causing a difference in the internal pressure of each cell. In a cell having a low pressure, the gap is reduced, and in a cell having a high pressure, a force is applied in a direction in which the gap is to be opened, and the contact resistance changes. If a difference occurs in the contact resistance between the cells in this way, the shared voltage at the time of charging and discharging varies. As shown in FIG. 4, in a specific cell having a higher shared voltage, when the withstand voltage value is exceeded, gas is generated rapidly, and the internal pressure further increases to increase the resistance. When the failure cycle shown in FIG. 4 progresses at an accelerated rate, the contact between the electrodes of the specific cell is eventually interrupted, resulting in an insulated state (open failure), and the device does not operate as an electric double layer capacitor.
【０００６】こうした故障を防ぐために、ユニット内で
分担電圧が不均一になったとき最も高い電圧が加わる特
定のセルを耐電圧以下にして使用する必要がある。よっ
てこのユニットは、充放電上限電圧を下げて使用しなけ
ればならない。これは電気二重層キャパシタのエネルギ
ー密度を低下させることになる。また、パッキンを用い
てシールを行っているため、シール力を上げるために締
め付け力を増すとパッキンが潰れて極間距離が減少し、
セル内部の空間が圧縮されることになる。セル内空間が
圧縮されると内圧も上することになる。パッキンは潰れ
ることでシール力を得るので製造時には締め付けてパッ
キンが潰れた分だけ内圧が上がってしまう。この圧力と
ガス発生、熱膨張などが加わセル内圧が高まることで電
解質漏れの原因となる。In order to prevent such a failure, it is necessary to use a specific cell to which the highest voltage is applied when the shared voltage becomes non-uniform in the unit, with a withstand voltage or less. Therefore, this unit must be used with a lower charge / discharge upper limit voltage. This lowers the energy density of the electric double layer capacitor. In addition, since sealing is performed using packing, if the tightening force is increased to increase the sealing force, the packing will collapse and the distance between the poles will decrease,
The space inside the cell will be compressed. When the space in the cell is compressed, the internal pressure also increases. Since the packing obtains a sealing force by being crushed, the packing is tightened at the time of manufacturing, and the internal pressure increases by the amount of the crushed packing. This pressure, gas generation, thermal expansion and the like increase the internal pressure of the cell, causing electrolyte leakage.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決する本発
明の請求項１に係る積層型電気二重層キャパシタは、ゲ
ル状電解質と中間電極とを交互に積層してなる複数個の
セルを両側から集電極板で挟んでなる積層型電気二重層
キャパシタにおいて、隣り合う各セルを連通する連通穴
を前記中間電極に設けて各セルに加わる内圧を均等化し
た構造を有することを特徴とする。上記課題を解決する
本発明の請求項２に係る積層型電気二重層キャパシタ
は、請求項１記載の積層型電気二重層キャパシタにおい
て、片側の集電極板にガス抜き穴を設けて、外気圧とユ
ニット内の圧力を同じにしながら、積層体を組み立てて
最後に前記ガス抜き穴を閉じて製造したことを特徴とす
る。上記課題を解決する本発明の請求項３に係る積層型
電気二重層キャパシタは、請求項１記載の積層型電気二
重層キャパシタにおいて、自動放圧機能を有する放圧弁
を前記集電極板に設けたことを特徴とする。According to a first aspect of the present invention, there is provided a multilayer electric double layer capacitor comprising a plurality of cells each having a gel electrolyte and an intermediate electrode alternately stacked on both sides. In the multilayer electric double layer capacitor sandwiched between the collector electrodes, a communication hole communicating each adjacent cell is provided in the intermediate electrode to equalize the internal pressure applied to each cell. A multilayer electric double layer capacitor according to claim 2 of the present invention that solves the above-mentioned problem is the multilayer electric double layer capacitor according to claim 1, wherein a gas vent hole is provided in one of the collector plates to reduce the external pressure and The laminated body is assembled while the pressure in the unit is kept the same, and finally, the gas vent hole is closed to manufacture the unit. According to a third aspect of the present invention, there is provided a multilayer electric double layer capacitor according to the present invention, wherein a pressure relief valve having an automatic pressure release function is provided on the collector plate. It is characterized by the following.
【０００８】[0008]
【発明の実施の形態】〔実施例１〕本発明の第１の実施
例に係る電気二重層キャパシタを図１に示す。同図に示
すように、ゲル状電解質と中間電極６とを交互に積層し
てなる複数個のセルを両側から集電極板５で挟むと共に
内部の電解質が漏れ出さないようにパッキン４を介装
し、更に、締め付け板１で両側から挟み、締め付けボル
ト２で締め付けたものである。パッキン４は積層間での
絶縁も兼ねている。締付けボルト２と締め付け板１との
間には絶縁カラー３が介装されている。[Embodiment 1] FIG. 1 shows an electric double layer capacitor according to a first embodiment of the present invention. As shown in the figure, a plurality of cells formed by alternately laminating a gel electrolyte and an intermediate electrode 6 are sandwiched from both sides by a collector plate 5, and a packing 4 is interposed so that the internal electrolyte does not leak. Further, it is sandwiched from both sides by a fastening plate 1 and fastened by fastening bolts 2. The packing 4 also serves as insulation between the layers. An insulating collar 3 is interposed between the tightening bolt 2 and the tightening plate 1.
【０００９】更に、ユニット内のセル間に圧力差を生じ
させないようにするため、図１に示すように、アルミ箔
の中間電極６に直径１．５ｍｍ程度の連通穴７が開けら
れている。この連通穴７は、活性層やゲル膜が干渉しな
い角部分に開け、特定のセル電圧が上昇しガスが発生し
ても、そのガスが連通穴７を通じて他のセルに抜け、ユ
ニット内全体が同じ圧力となるようにする。また、ユニ
ット内の電解液がこの連通穴７を通じて移動することに
よりクーロン効率や自己放電特性を悪化させないように
するためには、交互に連通穴７の位置を変えて積層し、
セル間での連通穴７の距離を大きくとると良い。Further, in order to prevent a pressure difference between the cells in the unit, as shown in FIG. 1, a communication hole 7 having a diameter of about 1.5 mm is formed in the intermediate electrode 6 made of aluminum foil. This communication hole 7 is opened at a corner where the active layer or the gel film does not interfere. Even if a specific cell voltage rises and a gas is generated, the gas flows through the communication hole 7 to another cell, and the whole inside of the unit is removed. The same pressure is applied. In order to prevent the electrolytic solution in the unit from deteriorating the Coulomb efficiency and the self-discharge characteristics due to the movement through the communication holes 7, the positions of the communication holes 7 are alternately changed and stacked.
It is preferable to increase the distance of the communication hole 7 between cells.
【００１０】上記構成を有する本実施例の電気二重層キ
ャパシタによれば、以下の効果を奏する。 連通穴７を通じて積層体の各セル空間を連通させるこ
とで、ユニット内部の圧力を均一にし、特定のセルから
ガスが発生しても他のセルへガスが抜け、接触抵抗が高
まることを防止する。 積層ユニット各セルの接触抵抗が均等化されことによ
り、分担電圧も均等化され、ユニットにより高い電圧で
充放電することができるようになる。 セル間の接触抵抗が均一化されることで、積層ユニッ
ト全体の内部抵抗が低減される。 特定のセルが絶縁状態になることがなくなるため、ユ
ニットの充放電サイクル寿命が延伸する。According to the electric double layer capacitor of this embodiment having the above configuration, the following effects can be obtained. By communicating each cell space of the laminated body through the communication hole 7, the pressure inside the unit is made uniform, and even if gas is generated from a specific cell, gas is prevented from flowing out to another cell, and contact resistance is prevented from increasing. . By equalizing the contact resistance of each cell of the stacked unit, the shared voltage is also equalized, and the unit can be charged and discharged with a higher voltage. By making the contact resistance between the cells uniform, the internal resistance of the entire stacked unit is reduced. Since the specific cell is not insulated, the charge / discharge cycle life of the unit is extended.
【００１１】〔実施例２〕本発明の第２の実施例に係る
電気二重層キャパシタを図２に示す。本実施例では、実
施例１と同様に中間電極６に連通穴７を開け、更に、製
造時に生じる内圧をキャンセルさせるために、片側の集
電極板５にもガス抜き穴８を開けておくものである。こ
のガス抜き穴８と連通するように締め付け板１にもネジ
穴を設けておき、締付けシール後にそのネジ穴にパッキ
ン（ゴムシート）９を入れ、止めネジ１０を締めること
でガス抜き穴８を気密に塞ぐ。このように最後に積層す
る集電極板５にガス抜き穴８を開けておくことで、パッ
キン４を締め付けたとき、ユニット内部の空気が集電極
板５のガス抜き穴８から抜け、そのガス抜き穴８を最後
に塞げば、ユニット内圧と外気圧を等しくする事ができ
る。Embodiment 2 FIG. 2 shows an electric double layer capacitor according to a second embodiment of the present invention. In this embodiment, as in the first embodiment, a communication hole 7 is formed in the intermediate electrode 6, and further, a gas vent hole 8 is formed in one side of the collector plate 5 in order to cancel the internal pressure generated during manufacturing. It is. A screw hole is also provided in the tightening plate 1 so as to communicate with the gas vent hole 8, a packing (rubber sheet) 9 is inserted into the screw hole after tightening and sealing, and the set screw 10 is tightened to form the gas vent hole 8. Close tightly. By forming the gas vent hole 8 in the collector electrode plate 5 to be laminated last, when the packing 4 is tightened, the air inside the unit escapes from the gas vent hole 8 of the collector electrode plate 5, and the gas is released. If the hole 8 is closed at the end, the internal pressure of the unit and the external pressure can be made equal.
【００１２】上記構成を有する本実施例の電気二重層キ
ャパシタによれば、以下の効果を奏する。 製造時に締め付けによってユニット内に圧力が発生し
なくなるため、より確実にばらつき無く締め付けること
ができるようになりシール力が向上する。 ユニットが発熱した場合、熱膨張で内圧が上昇するが
初期の圧力分がキャンセルされているために耐熱シール
性が向上する。 充放電でユニット内にガスが発生し、徐々に内圧が上
昇するが初期の圧力分がキャンセルされているので、充
放電サイクル寿命が延伸する。 ガス抜き穴を閉じた栓を一定サイクルごとに開いて放
圧すれば、液漏れが防止でき、サイクル寿命が大幅に延
伸する。According to the electric double layer capacitor of this embodiment having the above configuration, the following effects can be obtained. Since pressure is not generated in the unit due to tightening during manufacturing, tightening can be performed more reliably without variation, and the sealing force is improved. When the unit generates heat, the internal pressure increases due to thermal expansion, but the initial pressure is canceled, so that the heat-resistant sealing property is improved. Gas is generated in the unit by charge / discharge, and the internal pressure gradually increases, but the initial pressure is canceled, so that the charge / discharge cycle life is extended. If the plug with the vent hole closed is opened and depressurized every fixed cycle, liquid leakage can be prevented and the cycle life is greatly extended.
【００１３】〔実施例３〕本発明の第３の実施例に係る
電気二重層キャパシタを図３に示す。本実施例では、ユ
ニット内の内圧を緩和させるために実施例１に示した構
造を用いた上で、図３に示すように、集電極板５に復帰
式のガス抜き弁（放圧弁）１１を設けたものである。こ
のガス抜き弁１１は、締め付け板１を貫通するよう、集
電極板５にＯリング１２を介してねじ込んで取り付けら
れている。このガス抜き弁１１の上部円筒部分に、水平
方向に小さな穴１１ａが開けられており、集電極板５の
内部に通じている。この上部円筒部分の上にはゴムチュ
ーブ１３被せられ、通常は気密を保っている。しかし、
ユニット内の内圧が上がると、被せたゴムチューブ１３
が変形し、放圧弁１１から放圧する構造となっている。
この放圧値はゴムチューブ１３の硬度、円筒部の径によ
って調節し、内圧でユニットが破損したり漏れを生じさ
せるような圧力になるのを防ぐ。Embodiment 3 FIG. 3 shows an electric double layer capacitor according to a third embodiment of the present invention. In this embodiment, the structure shown in the first embodiment is used to alleviate the internal pressure in the unit, and then, as shown in FIG. Is provided. The gas vent valve 11 is screwed into the collector plate 5 via an O-ring 12 so as to penetrate the fastening plate 1. A small hole 11 a is formed in the upper cylindrical portion of the gas release valve 11 in the horizontal direction, and communicates with the inside of the collector plate 5. A rubber tube 13 is put on the upper cylindrical portion, and usually keeps airtight. But,
When the internal pressure in the unit increases, the covered rubber tube 13
Is deformed, and the pressure is released from the pressure relief valve 11.
This pressure release value is adjusted according to the hardness of the rubber tube 13 and the diameter of the cylindrical portion to prevent the internal pressure from causing a pressure that could damage the unit or cause leakage.
【００１４】上記構成を有する本実施例の電気二重層キ
ャパシタによれば、以下の効果を奏する。 ユニット内の圧力が高まると自動的に放圧するため
に、全く手間なしに液漏れが防止でき、サイクル寿命を
延伸させることができる。 常にユニット内の圧力を一定に保てるために、ユニッ
ト間の内部抵抗のばらつきが均一化される。According to the electric double layer capacitor of this embodiment having the above configuration, the following effects can be obtained. Since the pressure is automatically released when the pressure in the unit increases, liquid leakage can be prevented without any trouble, and the cycle life can be extended. Since the pressure inside the unit is always kept constant, the variation in the internal resistance between the units is made uniform.
【００１５】[0015]
【発明の効果】以上、実施例に基づいて具体的に説明し
たように、本発明では、積層体の各セル空間を連通させ
ることで、ユニット内部の圧力を均一にし、特定のセル
からガスが発生しても他のセルへガスが抜け、接触抵抗
が高まることを防止することができる。また、各セルの
接触抵抗が均等化されことにより、分担電圧も均等化さ
れ、ユニットにより高い電圧で充放電することができる
ようになる。更に、セル間の接触抵抗が均一化されるこ
とで、積層ユニット全体の内部抵抗が低減される。特定
のセルが絶縁状態になることがなくなるため、ユニット
の充放電サイクル寿命が延伸する。As described above in detail with reference to the embodiments, in the present invention, by communicating the cell spaces of the laminate, the pressure inside the unit is made uniform, and gas is discharged from a specific cell. Even if it occurs, it is possible to prevent gas from leaking to another cell and increase in contact resistance. Further, by equalizing the contact resistance of each cell, the shared voltage is also equalized, and the unit can be charged and discharged with a higher voltage. Furthermore, since the contact resistance between the cells is made uniform, the internal resistance of the entire stacked unit is reduced. Since the specific cell does not become insulated, the charge / discharge cycle life of the unit is extended.
【図１】本発明の実施例１に係る電気二重層キャパシタ
のセル間連通構造図である。FIG. 1 is a diagram showing an inter-cell communication structure of an electric double layer capacitor according to a first embodiment of the present invention.
【図２】図２（ａ）は、本発明の実施例２に係る電気二
重層キャパシタのガス抜き構造図、図２（ｂ）は同図
（ａ）中のＡ部の拡大図である。FIG. 2 (a) is a degassing structure diagram of an electric double layer capacitor according to a second embodiment of the present invention, and FIG. 2 (b) is an enlarged view of a portion A in FIG. 2 (a).
【図３】図３（ａ）は、本発明の実施例３に係る電気二
重層キャパシタの放圧弁構造図、図３（ｂ）は同図
（ａ）中のＢ部の拡大図である。FIG. 3A is a structural view of a pressure relief valve of an electric double layer capacitor according to a third embodiment of the present invention, and FIG. 3B is an enlarged view of a portion B in FIG. 3A.
【図４】積層型電気二重層キャパシタ故障サイクルFIG. 4 is a failure cycle of the multilayer electric double layer capacitor.
１ 締め付け板 ２ 締め付けボルト ３ 絶縁カラー ４ パッキン ５ 集電極板 ６ 中間電極 ７ 連通穴 ８ ガス抜き穴 ９ パッキン １０ 止めネジ １１ 放圧弁 １２ Ｏ−リング １３ ゴムチューブ DESCRIPTION OF SYMBOLS 1 Tightening plate 2 Tightening bolt 3 Insulating collar 4 Packing 5 Collector electrode plate 6 Intermediate electrode 7 Communication hole 8 Gas release hole 9 Packing 10 Set screw 11 Pressure relief valve 12 O-ring 13 Rubber tube
Claims (3)
してなる複数個のセルを両側から集電極板で挟んでなる
積層型電気二重層キャパシタにおいて、隣り合う各セル
を連通する連通穴を前記中間電極に設けて各セルに加わ
る内圧を均等化した構造を有することを特徴とする積層
型電気二重層キャパシタ。1. A communication hole for connecting adjacent cells in a multilayer electric double layer capacitor in which a plurality of cells formed by alternately laminating a gel electrolyte and an intermediate electrode are sandwiched from both sides by a collector plate. Is provided on the intermediate electrode to equalize the internal pressure applied to each cell.
シタにおいて、片側の集電極板にガス抜き穴を設けて、
外気圧とユニット内の圧力を同じにしながら、積層体を
組み立てて最後に前記ガス抜き穴を閉じて製造したこと
を特徴とする積層型電気二重層キャパシタ。2. The multilayer electric double layer capacitor according to claim 1, wherein a gas vent hole is provided in one of the collector plates.
A multilayer electric double-layer capacitor manufactured by assembling a laminate and closing the degassing hole at the same time while equalizing the external pressure and the pressure in the unit.
シタにおいて、自動放圧機能を有する放圧弁を前記集電
極板に設けたことを特徴とする積層型電気二重層キャパ
シタ。3. The multilayer electric double layer capacitor according to claim 1, wherein a pressure relief valve having an automatic pressure release function is provided on the collector plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000093625A JP2001284195A (en) | 2000-03-30 | 2000-03-30 | Laminated electric double-layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000093625A JP2001284195A (en) | 2000-03-30 | 2000-03-30 | Laminated electric double-layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001284195A true JP2001284195A (en) | 2001-10-12 |
Family
ID=18608783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000093625A Pending JP2001284195A (en) | 2000-03-30 | 2000-03-30 | Laminated electric double-layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001284195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313678A (en) * | 2001-04-13 | 2002-10-25 | Meidensha Corp | Laminated electric double-layer capacitor |
-
2000
- 2000-03-30 JP JP2000093625A patent/JP2001284195A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313678A (en) * | 2001-04-13 | 2002-10-25 | Meidensha Corp | Laminated electric double-layer capacitor |
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