JPH03132009A - Electric double-layer capacitor - Google Patents
Electric double-layer capacitorInfo
- Publication number
- JPH03132009A JPH03132009A JP1271131A JP27113189A JPH03132009A JP H03132009 A JPH03132009 A JP H03132009A JP 1271131 A JP1271131 A JP 1271131A JP 27113189 A JP27113189 A JP 27113189A JP H03132009 A JPH03132009 A JP H03132009A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- electrode
- sintered
- layer
- electric double
- 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
- 239000003990 capacitor Substances 0.000 title claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 113
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- 239000004917 carbon fiber Substances 0.000 claims abstract description 8
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 239000012779 reinforcing material Substances 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011530 conductive current collector Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005728 strengthening Methods 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
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電気二重層原理を用いた電気二重層コンデン
サに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electric double layer capacitor using the electric double layer principle.
（従来の技術）
近年、電子装置の半導体メモリのバックアップ用の電源
として電気二重層原理を用いた大容量のコンデンサが開
発され、マイクロコンピュータやＩＣメモリなどに組込
まれて広く使用されている。(Prior Art) In recent years, large-capacity capacitors using the electric double layer principle have been developed as backup power supplies for semiconductor memories in electronic devices, and are widely used by being incorporated into microcomputers, IC memories, and the like.
第８図は、このようなコンデンサの従来の一例を示した
断面図であり、２０は導電性ゴムを用いた集電板、３０
は非導電性ゴムを用いたガスケット、１０は分極性電極
で活性炭に希硫酸を含浸させたペースト状電極で、セパ
レータ４０によって上下に２分されたガスケット３０の
空間に収納されている。FIG. 8 is a sectional view showing a conventional example of such a capacitor, in which 20 is a current collector plate made of conductive rubber, 30 is a current collector plate made of conductive rubber;
10 is a gasket made of non-conductive rubber, and 10 is a polarizable electrode in the form of a paste made of activated carbon impregnated with dilute sulfuric acid, which is housed in the space of the gasket 30 divided into upper and lower halves by a separator 40.
そして、このようなペースト状の電極では、特性のよい
コンデンサにするため、電極の内部抵抗を下げたり集電
板との接触抵抗を減するため加圧して、内部抵抗や接触
抵抗を下げる必要がある。In order to make a capacitor with good characteristics, such a paste-like electrode needs to be pressurized to lower the internal resistance of the electrode and the contact resistance with the current collector plate. be.
このため電極自身の内部抵抗を減するのに、電極に焼結
材を用いた大容量コンデンサとして、比表面積の大きい
カーボンを含んだ電解液に対し、不活性な金属粉末を主
体とした焼結材よりなる分極性電極をセパレータを介し
て配置し、これを電解液を内蔵した外装缶に封入した提
案が特開昭４９−８７５３号公報に開示されている。For this reason, in order to reduce the internal resistance of the electrode itself, in order to create a large capacity capacitor using sintered material for the electrode, sintering mainly made of inert metal powder is required for electrolytes containing carbon with a large specific surface area. Japanese Unexamined Patent Publication No. 49-8753 discloses a proposal in which a polarizable electrode made of a material is arranged with a separator interposed therebetween and the electrode is sealed in an outer can containing an electrolyte.
（発明が解決しようとする課題）
上述のように電極の内部抵抗を下げるために、ペースト
状電極を電極体にするより、焼結体を用いた方が内部抵
抗が低く性能のよい分極性電極が得られるが、粒状の活
性体粒子を用いて焼結させたものでは、脆く、割れ易く
、生産工程などにて不良品を生じ易いという欠点が生じ
ていた。(Problems to be Solved by the Invention) As mentioned above, in order to lower the internal resistance of an electrode, it is better to use a sintered body than to use a paste-like electrode as a polarizable electrode with lower internal resistance and better performance. However, products sintered using granular active particles have the disadvantage that they are brittle and easily cracked, and are likely to produce defective products during the production process.
本発明はこのような従来の問題を解消して、電極体の強
度を向上させようとする電気二重層コンデンサを提供し
ようとすることを目的とするものである。An object of the present invention is to solve these conventional problems and provide an electric double layer capacitor in which the strength of the electrode body is improved.
（課題を解決するための手段）
本発明によれば、イオン透過膜を挟んで導電物質焼結体
からなる電極を対峙させ、両電極との間に電解液を介在
せしめた電気二重層コンデンサにおいて、前記電極はカ
ーボン微粒子とカーボン繊維の少くとも二層の焼結体層
からなる電気二重層コンデンサが提供される。(Means for Solving the Problems) According to the present invention, in an electric double layer capacitor in which electrodes made of a sintered conductive material are faced to each other with an ion-permeable membrane interposed therebetween, and an electrolyte is interposed between the two electrodes. , an electric double layer capacitor is provided in which the electrode comprises at least two sintered layers of carbon fine particles and carbon fibers.
（作用）
本発明では電極体がカーボン微粒子の焼結体層とカーボ
ン繊維の焼結体層との少くとも二層により形成されるの
で、カーボン繊維の部分が強化材となって焼結された電
極体の脆さや弱さが減じて強度が増大する。(Function) In the present invention, since the electrode body is formed of at least two layers: a sintered body layer of carbon fine particles and a sintered body layer of carbon fibers, the carbon fiber portion acts as a reinforcing material and is sintered. The brittleness and weakness of the electrode body is reduced and its strength is increased.
（実施例）
つぎに本発明の実施例について図面を用いて詳細に説明
する。(Example) Next, an example of the present invention will be described in detail using the drawings.
第１図は本発明の第１の実施例の電極板の生産工程の説
明図、第２図はその電極板の斜視図、第３図は第１の実
施例による電気二重層コンデンサの断面図である。Fig. 1 is an explanatory diagram of the production process of the electrode plate according to the first embodiment of the present invention, Fig. 2 is a perspective view of the electrode plate, and Fig. 3 is a sectional view of the electric double layer capacitor according to the first embodiment. It is.
第１図において、５は肉厚の円筒状の焼結用の型であり
、例えば黒鉛からなり中央部分には上下方向に所定寸法
の円型の穴５１が貫設されている。In FIG. 1, reference numeral 5 denotes a thick cylindrical sintering mold, which is made of, for example, graphite, and has a circular hole 51 of a predetermined size vertically extending through its central portion.
６は型５の穴５１に嵌入する上側ビン、７は穴５１に嵌
入する下側ビンであり、８はプラズマ焼結用の高圧電源
である。6 is an upper bottle that fits into the hole 51 of the mold 5, 7 is a lower bottle that fits into the hole 51, and 8 is a high voltage power source for plasma sintering.
そして、電極体の焼結に際しては、まず、下側ビン７を
図示の位置に穴５１に挿入し、穴５１の上方から所定の
粒状活性炭を入れた後、上側ピン６を挿入して圧し、粒
状活性炭ＩＣの上面を平坦にする。When sintering the electrode body, first, the lower bottle 7 is inserted into the hole 51 at the position shown in the figure, a predetermined amount of granular activated carbon is inserted from above the hole 51, and then the upper pin 6 is inserted and pressed. The upper surface of the granular activated carbon IC is made flat.
ついで、上側ピン６を抜き去り、さきの粒状活性炭１ｃ
の上方に所定の繊維状活性炭１ｂを入れて上側ピン６に
より加圧して、内部の活性炭の上面を平坦にする。Next, remove the upper pin 6 and remove the granular activated carbon 1c.
A predetermined amount of fibrous activated carbon 1b is placed above the fibrous activated carbon 1b, and pressure is applied using the upper pin 6 to flatten the upper surface of the activated carbon inside.
再度、上側ピン６を抜いてから、最初に入れた粒状活性
炭１ｃと同様の所定の粒状活性炭１ａを穴５１に入れた
後、上側ピン６を挿入して、所定の圧力を上側ピン６と
下側ビン７との間に加えて内部の三層の活性炭を加圧す
るとともに、高圧電源８から電力を供給して内部の活性
炭１ａ。After removing the upper pin 6 again, put a predetermined amount of granular activated carbon 1a similar to the granular activated carbon 1c that was initially inserted into the hole 51, insert the upper pin 6, and apply a predetermined pressure between the upper pin 6 and the bottom. In addition to pressurizing the three layers of activated carbon inside the side bottle 7, power is supplied from the high-voltage power source 8 to activate the activated carbon 1a inside.
ｌｂ、ｌｃのプラズマ焼結を行う。Perform lb and lc plasma sintering.
第２図は上述の工程により焼結された電極体１であり、
繊維状活性炭１ｂの層を中央にして、両ｍすに粒状活性
炭１ａ、ｌｃの層を有する電極体となり、それぞれの活
性炭の層が密接して焼結されたものである。FIG. 2 shows the electrode body 1 sintered by the above-mentioned process,
The electrode body has a layer of granular activated carbon 1a and lc on both sides with a layer of fibrous activated carbon 1b in the center, and each layer of activated carbon is closely sintered.
このように構成された電極板１は中央部に繊維状の活性
炭の層を有するため、両側の粒状活性炭が多孔質で強度
が脆くて割れやすくとも、中央の繊維状の層が強化する
ことにより、電極板としての強度が増大することになる
。The electrode plate 1 configured in this way has a layer of fibrous activated carbon in the center, so even if the granular activated carbon on both sides is porous and weak and easy to break, the fibrous layer in the center strengthens it. , the strength of the electrode plate increases.
第３図は上述の電極体を用いた電気二重層コンデンサの
断面図であり、電極体１は上述のように粒状活性炭１ａ
、繊維状活性炭１ｂ、粒状活性炭１ｃの三層の焼結体か
らなり、所定の電解液に浸漬されて分極性電極を構成し
、その電荷は導電性を有する集電板２に集電される。３
は非導電性素材からなるガスケットであり、上下の電極
体１゜１を分囚するセパレータ４が、上下間の中央部分
に接着され、内部を２分されている。FIG. 3 is a cross-sectional view of an electric double layer capacitor using the above-mentioned electrode body, in which the electrode body 1 is made of granular activated carbon 1a as described above.
It consists of a three-layer sintered body of fibrous activated carbon 1b and granular activated carbon 1c, and is immersed in a predetermined electrolytic solution to form a polarizable electrode, and the electric charge is collected on a conductive current collector plate 2. . 3
is a gasket made of a non-conductive material, and a separator 4 that separates the upper and lower electrode bodies 1.1 is adhered to the center portion between the upper and lower electrode bodies, dividing the inside into two.
第４図、第５図は本発明の第２の実施例の電極体の生産
工程の説明図である。FIGS. 4 and 5 are explanatory diagrams of the production process of an electrode body according to a second embodiment of the present invention.
これらの図面において、前記の第１図と同一の部分につ
いては同一の符号を付し、その説明は省略する。In these drawings, the same parts as in FIG.
６１は第１ビン、６２は第２ビン、６３は第３ビンで、
前述の型５の穴５１にそれぞれ嵌入させるピンであり、
第１ビン６１、第３ピン６３は前述の上側または下側ビ
ンと同様に電極体と当接する加圧面は平面に形成されて
おり、第２ピン６２の加圧面は中央部分が突出して凸形
状に形成されている。61 is the first bin, 62 is the second bin, 63 is the third bin,
These are pins that are inserted into the holes 51 of the mold 5 described above,
The first pin 61 and the third pin 63 have a flat pressure surface that comes into contact with the electrode body like the above-mentioned upper or lower bottle, and the pressure surface of the second pin 62 has a convex shape with the center part protruding. is formed.
そして電極体１１の生産に際しては、まず第２ピン６２
の凸部を上にして穴５１の下方より挿入し、穴５１の上
方から所定の粒状活性炭を入れた後、第１ビン６１を差
込んで、活性炭を加圧するとともに高圧電源８から電力
を供給してプラズマ焼結を行わせ、カップ状の焼結体１
１を成形する。When producing the electrode body 11, first the second pin 62
After inserting the predetermined granular activated carbon from above the hole 51 into the hole 51 with the convex part facing up, insert the first bottle 61 and pressurize the activated carbon while supplying power from the high voltage power source 8. to perform plasma sintering to form a cup-shaped sintered body 1
Mold 1.
ついで、型５の上下を逆として、第２ピン６２を抜ぎ去
った後、所定の繊維状活性炭を穴５１の内部に没入し、
第３ビン６３を穴５１に挿入して、その加圧面の平面に
より繊維状活性炭１１ｂの上面を平坦にする。Next, after turning the mold 5 upside down and removing the second pin 62, a predetermined amount of fibrous activated carbon is inserted into the hole 51.
The third bottle 63 is inserted into the hole 51, and the upper surface of the fibrous activated carbon 11b is flattened by the plane of its pressurizing surface.
つぎに、第３ビン６３を抜き出してから所定の粒状活性
炭を穴５１に入れ、再度、第３ピン６３を挿入して、所
定の圧力をかけて内部の活性炭を加圧するとともに、高
圧電源８から電力を印加して、最初のカップ状に焼結さ
れた活性炭１１ａと、繊維状活性炭ｆｌｂと、最後の粒
状活性炭１１ｃとが互いに結合して円板状になるように
焼結成形を行わせる。Next, the third bottle 63 is pulled out, a predetermined amount of granular activated carbon is put into the hole 51, the third pin 63 is inserted again, a predetermined pressure is applied, the activated carbon inside is pressurized, and the high voltage power source 8 is connected to the activated carbon. Electric power is applied to perform sintering and shaping so that the first activated carbon 11a sintered into a cup shape, the fibrous activated carbon flb, and the last granular activated carbon 11c are bonded to each other to form a disk shape.
このように形成された第２の実施例のＴＬ極鉢体１１第
１の実施例に準じて所定の電解液に浸漬することにより
分極性電極が構成され、カップ状の周壁部以外は繊維状
活性炭を有するため、強度が増大された分極性電極が得
られることになる。A polarizable electrode is constructed by immersing the TL electrode pot body 11 of the second embodiment in a predetermined electrolytic solution in accordance with the first embodiment. Having activated carbon results in a polarizable electrode with increased strength.
第６図は本発明の第３の実施例の導電物質焼結体を示す
斜視図、第７図は第４の実施例の導電物質焼結体を示す
斜視図であり、いずれも対峙させる片側部分を示したも
のである。FIG. 6 is a perspective view showing a conductive material sintered body according to a third embodiment of the present invention, and FIG. 7 is a perspective view showing a conductive material sintered body according to a fourth embodiment of the present invention. This shows the parts.
第６図において１ｄは繊維状活性炭の層であり、前述の
繊維状活性炭１ｂに準するもので、前記の粒状活性炭Ｉ
Ｃに準する粒状活性炭１ｅの層の上方に形成したもので
ある。In FIG. 6, 1d is a layer of fibrous activated carbon, which is similar to the above-mentioned fibrous activated carbon 1b, and is similar to the above-mentioned granular activated carbon I.
It is formed above a layer of granular activated carbon 1e similar to C.
また、第７図において１ｆは粒状活性炭の層、１ｇは繊
維状活性炭の層であり、第１図に示した粒状活性炭１ｃ
および繊維状活性炭１ｂに準じて加圧し、プラズマ焼結
にて成形し、上下を逆にしたものである。In addition, in Fig. 7, 1f is a layer of granular activated carbon, 1g is a layer of fibrous activated carbon, and 1f is a layer of granular activated carbon, and 1g is a layer of fibrous activated carbon.
and fibrous activated carbon 1b, pressurized and shaped by plasma sintering, and then turned upside down.
このような第３および第４の実施例においては、それぞ
れ導電物質焼結体に繊維状の部分の層を有するため、多
孔質の活性炭のみでは脆い電極板の強度が増大すること
になる。In the third and fourth embodiments, each of the conductive material sintered bodies has a layer of fibrous portions, so that the strength of the electrode plate, which is brittle with porous activated carbon alone, is increased.
以上、本発明を上述の実施例によって説明したが、本発
明の主旨の範囲内で種々の変形が可能であり、これらの
変形を本発明の範囲から排除するものではない。Although the present invention has been described above with reference to the above embodiments, various modifications can be made within the scope of the gist of the present invention, and these modifications are not excluded from the scope of the present invention.
（発明の効果）
本発明によれば、電極体の焼結に際し粒状活性炭層と！
ａ維状状活性炭層を少くとも二層の焼結体層としたので
、多孔質の粒状活性炭の焼結体のみでは強度の脆い割れ
易い電極体が、繊維状の層の強化により強度が増して割
れが防止さ４するという利点がある。(Effects of the Invention) According to the present invention, a granular activated carbon layer is formed during sintering of the electrode body!
a) Since the fibrous activated carbon layer has at least two sintered layers, the strength of the electrode body, which is brittle and easily broken, can be increased by strengthening the fibrous layer, whereas the strength of the porous granular activated carbon sintered body alone is brittle and easy to break. This has the advantage of preventing cracking.
また、本発明によれば三重の構造とするのに、ｔａ維状
または粒状の活性炭を適切に混合する工程を事前に行う
手数が省ける効果が得られるとともに、それぞれの活性
炭層の分布の片寄りが減じて全面に平均して分布され、
安定した電極体が生産できる効果も生ずる。Further, according to the present invention, in order to obtain a triple structure, it is possible to save the trouble of performing a step of appropriately mixing activated carbon in the form of fibrous or granular particles in advance, and the distribution of each activated carbon layer is uneven. is distributed evenly over the entire surface,
There is also the effect that stable electrode bodies can be produced.
第１図は本発明の第１の実施例の電極板の生産工程の説
明図、第２図はその電極板の斜視図、第３図は第１の実
施例による電気二重層コンデンサの断面図、第４図およ
び第５図は本発明の第２の実施例の電極体の生産工程の
説明図、第６図は第３の実施例の電極体の斜視図、第７
図は第４の実施例の電極体の斜視図、第８図は従来例の
断面図である。
１・・・電極体、２・・・集電板、３・・・ガスケット
、４・・・セパレータ、５・・・型、８・・・高圧電源
、１ａ・・・粒状活性炭、１ｂ・・・繊維状活性炭、１
ｃ・・・粒状活性炭。Fig. 1 is an explanatory diagram of the production process of the electrode plate according to the first embodiment of the present invention, Fig. 2 is a perspective view of the electrode plate, and Fig. 3 is a sectional view of the electric double layer capacitor according to the first embodiment. , FIG. 4 and FIG. 5 are explanatory diagrams of the production process of the electrode body of the second embodiment of the present invention, FIG. 6 is a perspective view of the electrode body of the third embodiment, and FIG.
The figure is a perspective view of the electrode body of the fourth embodiment, and FIG. 8 is a sectional view of the conventional example. DESCRIPTION OF SYMBOLS 1... Electrode body, 2... Current collector plate, 3... Gasket, 4... Separator, 5... Type, 8... High voltage power supply, 1a... Granular activated carbon, 1b...・Fibrous activated carbon, 1
c... Granular activated carbon.
Claims (2)
極を対峙させ、両電極との間に電解液を介在せしめた電
気二重層コンデンサにおいて、前記電極はカーボン微粒
子とカーボン繊維の少くとも二層の焼結体層からなるこ
とを特徴とする電気二重層コンデンサ。(1) In an electric double layer capacitor in which electrodes made of a sintered conductive material are opposed to each other with an ion-permeable membrane in between, and an electrolyte is interposed between the two electrodes, the electrodes are made of at least carbon fine particles and carbon fibers. An electric double layer capacitor characterized by consisting of two sintered body layers.
粒子状活性炭の内部に繊維状活性炭を収納し、さらにそ
の上部に微粒子状活性炭層を載せて全体を加圧焼結成型
せしめたことを特徴とする請求項（１）記載の電気二重
層コンデンサ。(2) The sintered body of the electrode is made by storing fibrous activated carbon inside the particulate activated carbon that has been sintered into a cup shape, and then placing a fine particulate activated carbon layer on top of the fibrous activated carbon, which is then pressurized and sintered as a whole. The electric double layer capacitor according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1271131A JPH03132009A (en) | 1989-10-18 | 1989-10-18 | Electric double-layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1271131A JPH03132009A (en) | 1989-10-18 | 1989-10-18 | Electric double-layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03132009A true JPH03132009A (en) | 1991-06-05 |
Family
ID=17495754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1271131A Pending JPH03132009A (en) | 1989-10-18 | 1989-10-18 | Electric double-layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03132009A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6353528B1 (en) | 1998-05-22 | 2002-03-05 | Kyocera Corporation | Solid activated carbon, process for manufacturing the same and electric double layer capacitor using the same |
| WO2003024868A1 (en) * | 2001-09-11 | 2003-03-27 | Showa Denko K.K. | Activated carbon, method for production thereof and use thereof |
| US6631074B2 (en) | 2000-05-12 | 2003-10-07 | Maxwell Technologies, Inc. | Electrochemical double layer capacitor having carbon powder electrodes |
| US6813139B2 (en) | 2001-11-02 | 2004-11-02 | Maxwell Technologies, Inc. | Electrochemical double layer capacitor having carbon powder electrodes |
| US20110261502A1 (en) * | 2008-09-04 | 2011-10-27 | The Regents Of The University Of California | Charge storage device architecture for increasing energy and power density |
| US20120304599A1 (en) * | 2011-02-16 | 2012-12-06 | Taiwan Textile Research Institute | Flexible Supercapacitor and Preparation Method Thereof |
-
1989
- 1989-10-18 JP JP1271131A patent/JPH03132009A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6353528B1 (en) | 1998-05-22 | 2002-03-05 | Kyocera Corporation | Solid activated carbon, process for manufacturing the same and electric double layer capacitor using the same |
| US6631074B2 (en) | 2000-05-12 | 2003-10-07 | Maxwell Technologies, Inc. | Electrochemical double layer capacitor having carbon powder electrodes |
| WO2003024868A1 (en) * | 2001-09-11 | 2003-03-27 | Showa Denko K.K. | Activated carbon, method for production thereof and use thereof |
| US7232790B2 (en) | 2001-09-11 | 2007-06-19 | Showa Denko K.K. | Activated carbon, method for production thereof and use thereof |
| US7923411B2 (en) | 2001-09-11 | 2011-04-12 | Showa Denko K.K. | Activated carbon material, and production method and use thereof |
| US6813139B2 (en) | 2001-11-02 | 2004-11-02 | Maxwell Technologies, Inc. | Electrochemical double layer capacitor having carbon powder electrodes |
| US20110261502A1 (en) * | 2008-09-04 | 2011-10-27 | The Regents Of The University Of California | Charge storage device architecture for increasing energy and power density |
| US20120304599A1 (en) * | 2011-02-16 | 2012-12-06 | Taiwan Textile Research Institute | Flexible Supercapacitor and Preparation Method Thereof |
| US9111686B2 (en) * | 2011-02-16 | 2015-08-18 | Taiwan Textile Research Institute | Flexible supercapacitor and preparation method thereof |
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