JPH04286108A - Electric double layer capacitor - Google Patents
Electric double layer capacitorInfo
- Publication number
- JPH04286108A JPH04286108A JP4941991A JP4941991A JPH04286108A JP H04286108 A JPH04286108 A JP H04286108A JP 4941991 A JP4941991 A JP 4941991A JP 4941991 A JP4941991 A JP 4941991A JP H04286108 A JPH04286108 A JP H04286108A
- Authority
- JP
- Japan
- Prior art keywords
- electric double
- double layer
- activated carbon
- layer capacitor
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 37
- 239000011888 foil Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 49
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 239000004020 conductor Substances 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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
【産業上の利用分野】本発明は、引出端子の構造を改良
した電気二重層コンデンサに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric double layer capacitor having an improved lead terminal structure.
【0002】0002
【従来の技術】従来の巻回型の電気二重層コンデンサの
引出導体部分は、金属で作られた細い棒や薄い板を、集
電体に接合させた構造になっていた。引出導体は1枚の
集電体に対して1本であるのが普通であり、大容量電気
二重層コンデンサ用の長い集電体でも引出導体の数は数
本であった。BACKGROUND OF THE INVENTION The lead-out conductor portion of a conventional wound type electric double layer capacitor has a structure in which a thin metal rod or thin plate is bonded to a current collector. Normally, there is one lead-out conductor per current collector, and even in a long current collector for a large-capacity electric double layer capacitor, the number of lead-out conductors is several.
【0003】0003
【発明が解決しようとする課題】このような構造の電気
二重層コンデンサには、次に述べるような問題点があっ
た。[Problems to be Solved by the Invention] The electric double layer capacitor having such a structure has the following problems.
【0004】すなわち、上記のような構造では、電極の
面積に対して引出導体の断面積の割合が小さく、かつ電
極から引出導体までの距離が長くなってしまう。そのた
め充放電を行うとき電子は長い距離を移動しなければな
らず大きな抵抗値となる。この結果内部抵抗が高くなり
、大電流での充放電を行った場合、細い引出導体に大量
の電子が流れるため引出導体が発熱し、コンデンサの寿
命に悪影響を与えていた。内部抵抗が高いと、内部抵抗
による電圧降下のためコンデンサに有効に印加される電
圧が低くなり、コンデンサとしての容量が小さくなると
いう欠点も有していた。That is, in the above structure, the ratio of the cross-sectional area of the lead-out conductor to the area of the electrode is small, and the distance from the electrode to the lead-out conductor becomes long. Therefore, when charging and discharging, electrons must travel long distances, resulting in a large resistance value. As a result, the internal resistance becomes high, and when charging and discharging at a large current, a large amount of electrons flow through the thin lead-out conductor, causing the lead-out conductor to generate heat, which has an adverse effect on the life of the capacitor. When the internal resistance is high, the voltage effectively applied to the capacitor becomes low due to the voltage drop caused by the internal resistance, and the capacitance of the capacitor becomes small.
【0005】また、薄い金属の箔でできた集電体に引出
導体を接合するため、引出線が接合された集電体の部分
の強度が低下し、信頼性を低下させていた。Furthermore, since the lead conductor is bonded to a current collector made of thin metal foil, the strength of the portion of the current collector to which the lead wire is bonded is reduced, reducing reliability.
【0006】本発明は、上記の従来の課題を解決しよう
とするもので、引出導体における抵抗損失が小さく、引
出導体接合による強度低下のない、効率と信頼性の高い
電気二重層コンデンサを提供することを目的とする。The present invention aims to solve the above-mentioned conventional problems, and provides a highly efficient and reliable electric double layer capacitor with low resistance loss in the lead conductor and no decrease in strength due to lead conductor joints. The purpose is to
【0007】[0007]
【課題を解決するための手段】上記の目的を達成するた
めに本発明の電気二重層コンデンサは、集電体に活性炭
層を形成して電極箔を作るとき、集電体の一部に活性炭
層を形成しないで露出した表面を残しておき、正極とな
る電極箔,セパレータ、負極となる電極箔,セパレータ
の順に重ね合せて巻回した後、両側に突出した活性炭層
が形成されていない集電体の部分を平坦に潰し、その平
坦部を引出端子としたものである。[Means for Solving the Problems] In order to achieve the above object, the electric double layer capacitor of the present invention includes activated carbon in a part of the current collector when forming an activated carbon layer on the current collector to make an electrode foil. After leaving the exposed surface without forming a layer, stack the electrode foil for the positive electrode, the separator, the electrode foil for the negative electrode, and the separator in this order and wind them. The electric body part is flattened and the flat part is used as a lead-out terminal.
【0008】[0008]
【作用】上記した手段によれば、集電体そのものの端部
を引出端子として使用することにより、従来引出導体と
して線を用いていたのに対し、集電体の大きな断面を引
出導体として使用することになるので、電極の面積に対
する引出導体の断面積の割合が非常に大きくなり、さら
にコンデンサの充放電を行うときの電子の移動距離が短
くなるため、内部抵抗値が小さくなり引出導体での電圧
降下が極めて小さいものとなり、同じ電極面積でコンデ
ンサ容量を大きくすることができる。[Operation] According to the above-mentioned means, by using the end of the current collector itself as a lead-out terminal, a large cross section of the current collector can be used as a lead-out conductor, whereas wires were conventionally used as lead-out conductors. As a result, the ratio of the cross-sectional area of the lead conductor to the area of the electrode becomes extremely large, and the distance traveled by electrons when charging and discharging the capacitor becomes shorter, reducing the internal resistance value and increasing the The voltage drop becomes extremely small, and the capacitor capacity can be increased with the same electrode area.
【0009】また、引出導体における抵抗値が小さいの
で、引出導体における発熱がなくなり、集電体と引出導
体との物理的接合部がなくなるため、引出導体部の強度
が飛躍的に向上する。Furthermore, since the resistance value in the lead conductor is small, there is no heat generation in the lead conductor, and there is no physical joint between the current collector and the lead conductor, so the strength of the lead conductor portion is dramatically improved.
【0010】この結果、損失の小さい,信頼性の高い電
気二重層コンデンサを作ることができる。As a result, a highly reliable electric double layer capacitor with low loss can be produced.
【0011】[0011]
【実施例】以下、本発明の実施例について図面を参照し
ながら説明する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【0012】(実施例1)図2に、電気二重層コンデン
サの電極構成を示す。図2において、1は正極となる電
極箔、2は負極となる電極箔、3は電極箔1,2を構成
する集電体、4は集電体3上に形成された活性炭層、5
はセパレータである。(Embodiment 1) FIG. 2 shows the electrode configuration of an electric double layer capacitor. In FIG. 2, 1 is an electrode foil that becomes a positive electrode, 2 is an electrode foil that is a negative electrode, 3 is a current collector that constitutes the electrode foils 1 and 2, 4 is an activated carbon layer formed on the current collector 3, and 5
is a separator.
【0013】本実施例においては、集電体3としてアル
ミニウムのエッチング箔を用い、一例としてそのアルミ
ニウム箔を正極1用として縦30mm×横70mmに、
負極2用として縦30mm×横60mmに切断して集電
体3とした。これらの集電体の一端から縦に13mmの
位置まで活性炭層4の電極を形成し電極箔を製作した。
この活性炭電極としては粉末活性炭(比表面積2500
mm2/g,平均粒径2μm)を使用しバインダと混合
して集電体3に塗布した。このようにして製作した電極
箔を下からセパレータ5,正極1,セパレータ5,負極
2の順に重ね合せる。このとき正極1の活性炭層4と負
極2の活性炭層4はセパレータ5を挟んで向い合うよう
に、また正極1の集電体3の露出部と負極2の集電体3
の露出部は重なり合わないように反対方向に向けて配列
する。その後、セパレータ5を挟んで重ね合わされた電
極箔を横方向から巻回し、図3に示す棒状のコンデンサ
素子とする。図3において、5はセパレータで電極箔よ
り横寸法を十分に長くしてあるので、棒状のコンデンサ
素子の表面には活性炭層4の電極部は現れず、セパレー
タ5が棒状のコンデンサ素子の表面に帯状に露出する。
この帯状に露出したセパレータ5の両側は、活性炭層4
が形成されていない集電体3が露出する。In this embodiment, an etched aluminum foil is used as the current collector 3, and as an example, the aluminum foil is used for the positive electrode 1 with a size of 30 mm in length and 70 mm in width.
For the negative electrode 2, the current collector 3 was cut into 30 mm long x 60 mm wide. An electrode of activated carbon layer 4 was formed to a position 13 mm vertically from one end of these current collectors to produce an electrode foil. This activated carbon electrode uses powdered activated carbon (specific surface area: 2500
mm 2 /g, average particle size 2 μm) was mixed with a binder and applied to the current collector 3. The electrode foils thus produced are stacked one on top of the other in the order of separator 5, positive electrode 1, separator 5, and negative electrode 2 from the bottom. At this time, the activated carbon layer 4 of the positive electrode 1 and the activated carbon layer 4 of the negative electrode 2 face each other with the separator 5 in between, and the exposed part of the current collector 3 of the positive electrode 1 and the current collector 3 of the negative electrode 2
The exposed parts are arranged in opposite directions so that they do not overlap. Thereafter, the stacked electrode foils with the separator 5 in between are wound laterally to form a rod-shaped capacitor element as shown in FIG. In FIG. 3, 5 is a separator whose lateral dimension is sufficiently longer than the electrode foil, so that the electrode part of the activated carbon layer 4 does not appear on the surface of the rod-shaped capacitor element, and the separator 5 is placed on the surface of the rod-shaped capacitor element. exposed in strips. Activated carbon layers 4 are formed on both sides of the separator 5 exposed in a band shape.
The current collector 3 on which is not formed is exposed.
【0014】このようにして、製作したコンデンサ素子
は、図1に示すように次に両側に露出した集電体3を平
坦に押潰し引出端子6を形成する。図1において、7は
コンデンサの金属または樹脂製のケースであり、後工程
で両端に引出端子6を形成したコンデンサ素子は、プロ
ピレンカーボネートを主溶剤とする電解液が含浸され、
両引出端子6だけを露出してケース7に封入され、電気
二重層コンデンサが完成する。[0014] With the capacitor element thus manufactured, the current collectors 3 exposed on both sides are then flattened to form lead-out terminals 6, as shown in FIG. In FIG. 1, 7 is a metal or resin case of the capacitor, and the capacitor element, on which lead terminals 6 are formed at both ends in a later process, is impregnated with an electrolytic solution containing propylene carbonate as the main solvent.
Only both lead terminals 6 are exposed and enclosed in a case 7, completing an electric double layer capacitor.
【0015】本実施例ではセパレータとしてポリプロピ
レンフィルムを用いている。
(実施例2)実施例1と同じ構成とし、粉末活性炭の代
りに繊維状活性炭(比表面積2000mm2/g,繊維
径2μm,繊維長5μm)を用いた。In this embodiment, a polypropylene film is used as the separator. (Example 2) The structure was the same as in Example 1, except that fibrous activated carbon (specific surface area: 2000 mm2/g, fiber diameter: 2 μm, fiber length: 5 μm) was used instead of powdered activated carbon.
【0016】実施例1では活性炭として粉末状のものを
、本実施例(実施例2)では繊維状のものを用いたが、
チョップ状のものを用いてもよい。In Example 1, powdered activated carbon was used, and in this example (Example 2), fibrous activated carbon was used.
Chopped pieces may also be used.
【0017】(実施例3)実施例1と同じ構成とし導電
性付与剤として、アセチレンブラックを活性炭に加えた
。(Example 3) The structure was the same as in Example 1, and acetylene black was added to activated carbon as a conductivity imparting agent.
【0018】(実施例4)実施例1と同じ構成で、集電
体としてアルミニウムのネット箔を用いた。(Example 4) The structure was the same as in Example 1, but an aluminum net foil was used as the current collector.
【0019】実施例1では集電体としてアルミニウム箔
を、本実施例(実施例4)ではアルミニウムネット箔を
用いたが、他の金属の板材,パンチングメタルを集電体
として使用することもできる。In Example 1, aluminum foil was used as the current collector, and in this example (Example 4), aluminum net foil was used, but other metal plates or punched metal may also be used as the current collector. .
【0020】(比較例)上記4種類の実施例との比較例
として、縦13mm×横70mmの正極と縦13mm×
横60mmの負極に金属の棒を引出導体として接合した
集電体に活性炭電極を形成し、それぞれの電極箔をセパ
レータで挟むようにして巻き取り、プロピレンカーボネ
ートを主溶剤とする電解液を含浸させ、電気二重層コン
デンサを製作した。(Comparative Example) As a comparative example with the above four types of examples, a positive electrode of 13 mm in length x 70 mm in width and a positive electrode of 13 mm in length x 70 mm in width were used.
An activated carbon electrode is formed on a current collector made by joining a metal rod as a lead conductor to a 60 mm wide negative electrode, and each electrode foil is wound up between separators, impregnated with an electrolytic solution containing propylene carbonate as the main solvent, and electrically A double layer capacitor was manufactured.
【0021】この比較例の電気二重層コンデンサと、実
施例1〜実施例4の電気二重層コンデンサの特性と性能
の比較を(表1)に示す。Table 1 shows a comparison of the characteristics and performance of the electric double layer capacitor of this comparative example and the electric double layer capacitors of Examples 1 to 4.
【0022】[0022]
【表1】[Table 1]
【0023】(表1)によれば、本発明の4つの実施例
による電気二重層コンデンサは比較例の電気二重層コン
デンサと比較して、同じ電極箔面積でより大きな容量を
持ち、内部抵抗値は著しく小さくなり、さらに電圧保持
時間ははるかに大きくなっていることが判る。According to (Table 1), the electric double layer capacitors according to the four embodiments of the present invention have larger capacitances with the same electrode foil area and lower internal resistance values than the electric double layer capacitors of the comparative examples. It can be seen that the voltage has become significantly smaller and the voltage holding time has become much longer.
【0024】[0024]
【発明の効果】以上の説明からも明らかなように本発明
によれば、集電体の一部を直接引出端子とすることによ
り、同じ電極箔面積で静電容量を大きくすることが可能
であり、その結果電圧保持時間を長くすることができる
。また、内部抵抗値を大幅に低下させることができるた
め、大電流の充放電に耐えることができる。さらに引出
端子の取付け強度が飛躍的に向上することから、高性能
で高信頼性の電気二重層コンデンサを実現できる。[Effects of the Invention] As is clear from the above explanation, according to the present invention, by directly using a part of the current collector as a lead-out terminal, it is possible to increase the capacitance with the same electrode foil area. As a result, the voltage holding time can be extended. Furthermore, since the internal resistance value can be significantly reduced, it can withstand charging and discharging of large currents. Furthermore, the mounting strength of the lead terminals is dramatically improved, making it possible to realize high-performance and highly reliable electric double-layer capacitors.
【図1】本発明の電気二重層コンデンサの一実施例にお
けるケース封入前の形状を示す斜視図[Fig. 1] A perspective view showing the shape of an embodiment of the electric double layer capacitor of the present invention before being enclosed in a case.
【図2】本発明の電気二重層コンデンサの一実施例にお
ける電極およびセパレータの積層の状態を示す斜視図FIG. 2 is a perspective view showing the laminated state of electrodes and separators in an embodiment of the electric double layer capacitor of the present invention.
【
図3】本発明の電気二重層コンデンサの一実施例におけ
る引出端子加工前のコンデンサ素子を示す斜視図[
FIG. 3 is a perspective view showing a capacitor element before extraction terminal processing in an embodiment of the electric double layer capacitor of the present invention
3 集電体 4 活性炭素層 5 セパレータ 6 引出端子 3 Current collector 4 Activated carbon layer 5 Separator 6 Output terminal
Claims (4)
上に形成された電極となる活性炭層と、正負一対の活性
炭層が向い合うように重ねられた部分を隔絶するように
活性炭層部と交互に重ね合わされたセパレータと、電解
液とで構成された電気二重層コンデンサであって、集電
体の少なくとも一部分が露出するように集電体上に活性
炭層を形成し、集電体上の露出部分を引出端子として使
用する構成にした電気二重層コンデンサ。Claim 1: A pair of positive and negative current collectors, an activated carbon layer forming an electrode formed on the pair of current collectors, and a portion where the pair of positive and negative activated carbon layers are overlapped so as to face each other. An electric double layer capacitor is composed of an electrolyte and separators stacked alternately with activated carbon layer parts, and the activated carbon layer is formed on the current collector so that at least a part of the current collector is exposed. An electric double layer capacitor with a structure in which the exposed part on the electric body is used as a lead-out terminal.
状の活性炭とバインダとからなる請求項1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 activated carbon layer comprises powdered, fibrous or chopped activated carbon and a binder.
載の電気二重層コンデンサ。3. The electric double layer capacitor according to claim 1, wherein the activated carbon layer contains a conductivity imparting agent.
チングメタルである請求項1記載の電気二重層コンデン
サ。4. The electric double layer capacitor according to claim 1, wherein the current collector is a metal plate, foil, net or punched metal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3049419A JP2757573B2 (en) | 1991-03-14 | 1991-03-14 | Electric double layer capacitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3049419A JP2757573B2 (en) | 1991-03-14 | 1991-03-14 | Electric double layer capacitor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04286108A true JPH04286108A (en) | 1992-10-12 |
JP2757573B2 JP2757573B2 (en) | 1998-05-25 |
Family
ID=12830555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3049419A Expired - Lifetime JP2757573B2 (en) | 1991-03-14 | 1991-03-14 | Electric double layer capacitor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2757573B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5953204A (en) * | 1994-12-27 | 1999-09-14 | Asahi Glass Company Ltd. | Electric double layer capacitor |
US6710999B2 (en) | 2001-12-11 | 2004-03-23 | Asahi Glass Company, Limited | Electric double layer capacitor |
US6879482B2 (en) | 2002-04-22 | 2005-04-12 | Asahi Glass Company, Limited | Electric double layer capacitor |
US7173807B2 (en) | 2003-07-17 | 2007-02-06 | Asahi Glass Company, Limited | Electric double layer capacitor |
JP2009525415A (en) * | 2006-01-31 | 2009-07-09 | ラドヤード, ライル イストバン, | Nonwoven fiber materials and electrodes made therefrom |
US7755879B2 (en) | 2006-08-11 | 2010-07-13 | Asahi Glass Company, Limited | Non-aqueous electrolytic solution for electric double layer capacitor and electric double layer capacitor using the same |
JP2010287703A (en) * | 2009-06-11 | 2010-12-24 | Mitsubishi Electric Corp | Power storage device |
US8709972B2 (en) | 2007-02-14 | 2014-04-29 | Nanocarbons Llc | Methods of forming activated carbons |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56114314A (en) * | 1980-02-14 | 1981-09-08 | Nichicon Capacitor Ltd | Linear double layer capacitor |
JPH04152616A (en) * | 1990-10-17 | 1992-05-26 | Elna Co Ltd | Electric double-layer capacitor |
-
1991
- 1991-03-14 JP JP3049419A patent/JP2757573B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56114314A (en) * | 1980-02-14 | 1981-09-08 | Nichicon Capacitor Ltd | Linear double layer capacitor |
JPH04152616A (en) * | 1990-10-17 | 1992-05-26 | Elna Co Ltd | Electric double-layer capacitor |
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US5953204A (en) * | 1994-12-27 | 1999-09-14 | Asahi Glass Company Ltd. | Electric double layer capacitor |
DE19548005B4 (en) * | 1994-12-27 | 2007-01-04 | Asahi Glass Co., Ltd. | Electric double layer capacitor |
US6710999B2 (en) | 2001-12-11 | 2004-03-23 | Asahi Glass Company, Limited | Electric double layer capacitor |
US6879482B2 (en) | 2002-04-22 | 2005-04-12 | Asahi Glass Company, Limited | Electric double layer capacitor |
US7173807B2 (en) | 2003-07-17 | 2007-02-06 | Asahi Glass Company, Limited | Electric double layer capacitor |
JP2009525415A (en) * | 2006-01-31 | 2009-07-09 | ラドヤード, ライル イストバン, | Nonwoven fiber materials and electrodes made therefrom |
KR101299085B1 (en) * | 2006-01-31 | 2013-08-27 | 루디야드 라일 이스트반 | Non-woven fibrous materials and electrodes therefrom |
US8580418B2 (en) | 2006-01-31 | 2013-11-12 | Nanocarbons Llc | Non-woven fibrous materials and electrodes therefrom |
JP2014077226A (en) * | 2006-01-31 | 2014-05-01 | Lyle Istvan Rudyard | Nonwoven fiber material and electrode made thereof |
US7755879B2 (en) | 2006-08-11 | 2010-07-13 | Asahi Glass Company, Limited | Non-aqueous electrolytic solution for electric double layer capacitor and electric double layer capacitor using the same |
US8709972B2 (en) | 2007-02-14 | 2014-04-29 | Nanocarbons Llc | Methods of forming activated carbons |
JP2010287703A (en) * | 2009-06-11 | 2010-12-24 | Mitsubishi Electric Corp | Power storage device |
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