JPH0322515A - Impregnation of electrode for energy storage element with solid electrolyte - Google Patents
Impregnation of electrode for energy storage element with solid electrolyteInfo
- Publication number
- JPH0322515A JPH0322515A JP1157484A JP15748489A JPH0322515A JP H0322515 A JPH0322515 A JP H0322515A JP 1157484 A JP1157484 A JP 1157484A JP 15748489 A JP15748489 A JP 15748489A JP H0322515 A JPH0322515 A JP H0322515A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- solid electrolyte
- electrolyte
- organic solvent
- polalized
- 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
- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 19
- 238000004146 energy storage Methods 0.000 title claims description 5
- 238000005470 impregnation Methods 0.000 title abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000004132 cross linking Methods 0.000 claims abstract description 8
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 5
- 239000000178 monomer Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 230000002250 progressing effect Effects 0.000 abstract 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002904 solvent Substances 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
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は電気二重層コンデンサ、リチウムニ次電池な
どのエネルギー貯蔵素子に用いられる分極性電極に関し
、さらに詳しく言えば、その分極性電極に対する固体電
解質の含浸方法に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a polarizable electrode used in energy storage devices such as electric double layer capacitors and lithium secondary batteries, and more specifically, to a solid electrolyte for the polarizable electrode. The present invention relates to an impregnation method.
電気二重層コンデンサを例にとって説明すると、この種
のコンデンサは例えばカーボン、活性炭を適当なバイン
ダー（ポリテ１−ラフルオロエチレン；ＰＴＦＥ）で混
練してなるシート状の分極性電極、または活性炭繊維を
素材とした分極性電極を備え、このような分極性電極に
高分子化させた導電性固体電解質を加熱、加圧などで含
浸させていた。Taking an electric double layer capacitor as an example, this type of capacitor is made of sheet-like polarizable electrodes made of carbon or activated carbon kneaded with a suitable binder (polytetrafluoroethylene; PTFE), or activated carbon fibers. These polarizable electrodes were impregnated with a polymerized conductive solid electrolyte by heating, pressurizing, etc.
この分極性電極に使用されるカーボンや活性炭あるいは
活性炭繊維は微細孔を多くもつために表面積がきわめて
大きい。しかしながら、高分子導電性固体電解質は粘性
が非常に尚いため、その分極性電極の細部にまで含浸さ
せることは困難であり、したがって表向積が大きく微細
孔をもつカーボンや活性炭あるいは活性炭繊維の性能を
十分に利用することができなかった。The carbon, activated carbon, or activated carbon fiber used in this polarizable electrode has many micropores and therefore has an extremely large surface area. However, the viscosity of polymeric conductive solid electrolytes is very low, so it is difficult to impregnate the polarizable electrodes into the fine details. could not be fully utilized.
上記課題を解決するため、この発明においては、カーボ
ンや活性炭あるいは活性炭繊維などからなる分極性電極
へ固体電解質を含浸させるにあたって、
固体電解質のモノマーを有機溶媒に溶かして（好ましく
は５〜５０ｗｔ％）希釈したのち、その溶液に電解質を
高分子化するための架橋剤を添加する。In order to solve the above problems, in this invention, when impregnating a polarizable electrode made of carbon, activated carbon, activated carbon fiber, etc. with a solid electrolyte, a monomer of the solid electrolyte is dissolved in an organic solvent (preferably 5 to 50 wt%). After dilution, a crosslinking agent for polymerizing the electrolyte is added to the solution.
架橋反応が進み高分子化する前に、上記溶液を分極性電
極に含浸させ、しかるのち有機溶媒を揮発させて架橋反
応を進行させる。これを分極性電極の細孔内部まで高分
子化された導電性固体電解質が充填されるまで所定回数
繰り返す。Before the crosslinking reaction progresses and polymerization occurs, the polarizable electrode is impregnated with the above solution, and then the organic solvent is evaporated to allow the crosslinking reaction to proceed. This is repeated a predetermined number of times until the interior of the pores of the polarizable electrode is filled with the polymerized conductive solid electrolyte.
分極性電極への含浸は例えばノズルなどにより行うこと
が好ましく、また、有機溶媒の揮発方法としては、例え
ば加熱、減圧、送風などがある。The polarizable electrode is preferably impregnated using a nozzle, and methods for volatilizing the organic solvent include, for example, heating, reduced pressure, and blowing air.
これによれば、固体電解質を分子量の低い七ノマーの状
態で分極性電極の細部にまで含浸させることができ、そ
の後架橋反応が進み高分子化することで、表面積の非常
に大きいカーボンや活性炭あるいは活性炭繊維を利用し
た高性能の分極性電極が得られる。According to this method, the solid electrolyte can be impregnated into the fine details of the polarizable electrode in the state of a heptamer with a low molecular weight, and then the crosslinking reaction progresses and the polymer is formed. A high-performance polarizable electrode using activated carbon fibers can be obtained.
活性炭粉末、カーボンブラック、有機バインダー （Ｐ
ＴＦＥ）を８０：１０：１０の割合で混練し、直径１
２ｍｍ、厚さ０，６５ｎ＋ＩＩ１に形成したシート状の
分極性電極を用意し、これに希釈度合の異なる品分子の
導電性固体電解質を含浸した２枚の分極性電極を対向さ
せて電気二重層コンデンサを試作（翫１〜９）し、その
静電容量（Ｃａｐ；Ｆ）および等価直列抵抗（ＥＳＲ；
Ω）を測定した結果を次頁の表に示す。Activated carbon powder, carbon black, organic binder (P
TFE) in a ratio of 80:10:10, and
A sheet-like polarizable electrode formed to a thickness of 2 mm and a thickness of 0.65n+II1 is prepared, and two polarizable electrodes impregnated with conductive solid electrolytes of different dilutions are placed facing each other to form an electric double layer capacitor. (1 to 9), and its capacitance (Cap; F) and equivalent series resistance (ESR;
The results of measuring Ω) are shown in the table on the next page.
なお、この実施例ではポリエーテル系のポリマーをメチ
ルエチルケトンを溶媒として希釈した。In this example, the polyether polymer was diluted using methyl ethyl ketone as a solvent.
メチルエチルケトンに代えてアセトンを使用することも
できる。そして、この希釈液に架橋剤を添加したもので
ある。Acetone can also be used instead of methyl ethyl ketone. A crosslinking agent is added to this diluted solution.
−３−
《表》
−４−
される分極性電極に対して高分子導電性固体電解質を効
果的に含浸させることができ，したがって、高性能なエ
ネルギー貯蔵素子を製造することが可能となる。-3- <<Table>> -4- It is possible to effectively impregnate the polarizable electrode with the conductive polymer solid electrolyte, and therefore it becomes possible to manufacture a high-performance energy storage element.
Claims (2)
るエネルギー貯蔵素子用分極性電極への固体電解質の含
浸方法において、 固体電解質のモノマーを有機溶媒で希釈するとともに、
同電解質を高分子化するための架橋剤を添加し、この溶
液を上記分極性電極に含浸させたのち、有機溶媒を揮発
させて架橋反応を進行させる工程を所定回数繰り返すこ
とを特徴とするエネルギー貯蔵素子用電極への固体電解
質の含浸方法。(1) In a method of impregnating a polarizable electrode for an energy storage device made of carbon, activated carbon, or activated carbon fiber with a solid electrolyte, the monomer of the solid electrolyte is diluted with an organic solvent, and
Energy characterized by adding a crosslinking agent to polymerize the electrolyte, impregnating the polarizable electrode with this solution, and then repeating the process of volatilizing the organic solvent to advance the crosslinking reaction a predetermined number of times. A method for impregnating an electrode for a storage element with a solid electrolyte.
行う請求項１に記載のエネルギー貯蔵素子用電極への固
体電解質の含浸方法。(2) The method of impregnating a solid electrolyte into an electrode for an energy storage element according to claim 1, wherein the organic solvent is volatilized by heating, reducing pressure, blowing air, or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1157484A JPH0715861B2 (en) | 1989-06-20 | 1989-06-20 | Method for impregnating electrode for energy storage device with solid electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1157484A JPH0715861B2 (en) | 1989-06-20 | 1989-06-20 | Method for impregnating electrode for energy storage device with solid electrolyte |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0322515A true JPH0322515A (en) | 1991-01-30 |
| JPH0715861B2 JPH0715861B2 (en) | 1995-02-22 |
Family
ID=15650693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1157484A Expired - Fee Related JPH0715861B2 (en) | 1989-06-20 | 1989-06-20 | Method for impregnating electrode for energy storage device with solid electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0715861B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000014755A1 (en) * | 1998-09-04 | 2000-03-16 | Kemet Electronics Corporation | Process of preparing a solid electrolytic capacitor containing a conductive polymer counter electrode |
-
1989
- 1989-06-20 JP JP1157484A patent/JPH0715861B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000014755A1 (en) * | 1998-09-04 | 2000-03-16 | Kemet Electronics Corporation | Process of preparing a solid electrolytic capacitor containing a conductive polymer counter electrode |
| GB2357903A (en) * | 1998-09-04 | 2001-07-04 | Kemet Electronics Corp | Process of preparing a solid electrolytic capacitor containing a conductive polymer counter electrode |
| US6391379B1 (en) | 1998-09-04 | 2002-05-21 | Kemet Electronics Corporation | Process of preparing a solid electrolytic capacitor containing a conductive polymer counter electrode |
| GB2357903B (en) * | 1998-09-04 | 2002-11-13 | Kemet Electronics Corp | Process of preparing a solid electrolytic capacitor containing a conductive polymer counter electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0715861B2 (en) | 1995-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |