JP5689794B2 - 電気二重層装置のための電極 - Google Patents
電気二重層装置のための電極 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/38—Carbon pastes or blends; Binders or additives therein
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/48—Conductive polymers
-
- 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
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Inert Electrodes (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Description
第1の実施例では、本開示に従って、PTFE材料および炭素材料から積層構造を調製した。炭素材料は、参照することによりその全体が本明細書に援用される、特に、炭素材料、およびその製造方法について開示する米国特許出願公開第2008/0024954号明細書に記載の方法で作ることができる。PTFEの高い縦横比の材料と炭素材料を、9:1の比(炭素:PTFE)で混合し、次に、PTFE材料へのカーボン粒子の機械的取り込みを可能にするため、アゲート媒体を用いて、約340rpmで約10分間、粉砕に供した。その後、固体の液体に対する比が約1:3で得られるように、イソプロピル・アルコールを混合物に加えた。次に、混合物を約340rpmで約10分間、再び粉砕し、粘度の高いペーストを得た。ペーストを紙の基板上に分散し、別の紙基板で覆った。紙およびペースト組成物をメカニカルローラーを用いて圧延した。イソプロパノールを、紙にある程度吸収させて、薄いテープ得た。テープを、ローラーの間で複数回圧延し、厚さを調節し、5ミルの厚さまで薄くした。これら2つのテープが作られ、グラファイトでコーティングした市販の(Intellicoat社製)アルミニウム電流コレクタを2つのテープの間に置き、組立体を2つのローラーの間で圧延して、電極テープと電流コレクタの間に付着をもたらした。よって、形成した電極は、優れた均一性およびテープの電流コレクタへの良好な付着を示した。電流コレクタへのテープの付着は、アセトニトリル中、TETA−TFBの電解質溶液に5日間、電極テープを浸漬することによって確認した。浸漬試験では、電流コレクタを形成するテープの層間剥離または、テープを形成するカーボン粒子の分離は生じなかった。テープと電流コレクタの間の結合は、依然として強く残っていた。
第2の実施例では、別の調製方法を用いて、積層構造を調製した。用いた液体媒体が、イソプロパノールの蒸留水に対する2:1の重量比であったこと以外は、上述の実施例1に記載の方法を用いて積層構造を調製した。この方法も良好に動作し、実施例1における電極と同様に処理した。エネルギー密度およびESR特性は、それぞれ16.5Wh/lおよび1オームであり、これも、優れた性能を示唆した。
第3の実施例では、別の調製方法を用いて積層構造を調製した。活性炭材料とカーボンブラックを8:1の比で含む固体以外は、上述の実施例1に記載の方法を用いて積層構造を調製した。活性炭材料は、米国特許出願公開第2008/0024954号明細書に記載の方法に従って作ることができ、参照することによってその全体、特に、炭素材料の開示の目的および同一の製造方法が本明細書に援用される。炭素:カーボンブラック:PTFEの比が8:1:1になるようにPTFEを加えた。この方法を経て作られた電極は、17Wh/lのエネルギー密度および1オームのESRを示した。この実施例は、電極が、伝導性を強化する添加剤を含んで差し支えないことを示唆している。
第4の実施例では、積層構造の調製方法の規模を拡大した。PTFEと炭素の混合物を乾式粉砕処理し、次に、液体と混合して、上述のようにスラリーを形成した。次いで、スラリーを、2つの吸収剤基板の間に適用してプレフォームを形成し、これを圧延して、さらに電極テープの厚さ、幅および他のパラメータを調整した。吸収剤基板の間の第1の圧延の後、その後の圧延は、例えば、金属箔および/またはプラスチックフィルムの間で行った。次に、テープを金属の電流コレクタ上に圧延して、テープを電流コレクタに機械的に付着させた。
Claims (7)
- a)繊維性の高分子材料と炭素材料を液体の存在無しで接触させて、炭素材料が絡まった繊維性の高分子材料の網状構造を形成し;
b)工程a)において形成された前記網状構造を液体と接触させてスラリーを形成し;
c)前記スラリーの少なくとも一部を第1の基板上に堆積させて、前記スラリーを含む層を形成し;
d)前記第1の基板に対向し、前記層の少なくとも一部を覆うように、第2の基板を位置させて該第2の基板を前記層と接触させることにより、積層構造を形成する、
各工程を有してなる電気二重層装置のための電極を形成する方法であって、
前記積層構造が、電気二重層装置の電極を構成し、
前記第1の基板及び前記第2の基板が、前記スラリーを付着させて層とするために使われること、及び、
前記第1及び第2の基板のうちの少なくとも1つが、前記スラリーに含まれる前記液体の少なくとも一部を吸収する能力を有するものである、
ことを特徴とする電気二重層装置のための電極を形成する方法。 - 前記形成工程が、基板上に前記スラリーの少なくとも一部を沈着させることを含むことを特徴とする請求項1記載の方法。
- 工程a)で形成された網状構造が、高分子材料の相互接続ネットワーク内に複数の炭素粒子を含むことを特徴とする請求項1または2記載の方法。
- 前記繊維性の高分子材料が、ポリテトラフルオロエチレンを含むものであることを特徴とする請求項1から3いずれか1項記載の方法。
- 前記炭素材料が、カーボンブラック、グラファイト、アセチレン・ブラック、活性炭、またはそれらの組合せを含むものであることを特徴とする請求項1から4いずれか1項記載の方法。
- 前記積層構造を圧延する工程を更に有してなることを特徴とする請求項1から5いずれか1項記載の方法。
- 前記第1の基板および第2の基板のうちで前記液体の少なくとも一部を吸収する能力を有する基板が、多孔質の媒体からなるものであることを特徴とする請求項1から6いずれか1項記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/129,208 | 2008-05-29 | ||
US12/129,208 US8002921B2 (en) | 2008-05-29 | 2008-05-29 | Electrodes for electric double layer devices |
PCT/US2009/003012 WO2009148493A2 (en) | 2008-05-29 | 2009-05-14 | Electrodes for electric double layer devices |
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JP2011522412A JP2011522412A (ja) | 2011-07-28 |
JP2011522412A5 JP2011522412A5 (ja) | 2014-02-27 |
JP5689794B2 true JP5689794B2 (ja) | 2015-03-25 |
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JP2011511602A Expired - Fee Related JP5689794B2 (ja) | 2008-05-29 | 2009-05-14 | 電気二重層装置のための電極 |
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Country | Link |
---|---|
US (1) | US8002921B2 (ja) |
EP (1) | EP2304747A2 (ja) |
JP (1) | JP5689794B2 (ja) |
KR (1) | KR101576316B1 (ja) |
CN (2) | CN102047360B (ja) |
TW (1) | TWI407467B (ja) |
WO (1) | WO2009148493A2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US8002921B2 (en) * | 2008-05-29 | 2011-08-23 | Corning Incorporated | Electrodes for electric double layer devices |
TWI460238B (zh) | 2011-12-15 | 2014-11-11 | Ind Tech Res Inst | 自組塗裝塗料、散熱板及其製造方法 |
TWI466153B (zh) | 2011-12-15 | 2014-12-21 | Ind Tech Res Inst | 電容器及其製造方法 |
EP2831939B1 (en) * | 2012-03-30 | 2022-07-13 | LiCAP New Energy Technologies (Tianjian) Co., Ltd. | Electrode for energy storage devices and method for making same |
CN108735528A (zh) * | 2017-04-20 | 2018-11-02 | 东莞市东阳光电容器有限公司 | 一种含ptfe纤维的超级电容器电极片的制备工艺 |
US11508956B2 (en) | 2020-09-08 | 2022-11-22 | Licap Technologies, Inc. | Dry electrode manufacture with lubricated active material mixture |
CN117691048A (zh) | 2022-09-02 | 2024-03-12 | 通用汽车环球科技运作有限责任公司 | 形成具有聚合物纤维网络的固态电极的无溶剂方法及由其制备的固态电极 |
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2008
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- 2009-05-14 CN CN200980120174.9A patent/CN102047360B/zh not_active Expired - Fee Related
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TWI407467B (zh) | 2013-09-01 |
EP2304747A2 (en) | 2011-04-06 |
WO2009148493A3 (en) | 2010-03-25 |
KR101576316B1 (ko) | 2015-12-09 |
JP2011522412A (ja) | 2011-07-28 |
US20090294081A1 (en) | 2009-12-03 |
KR20110016457A (ko) | 2011-02-17 |
CN102047360B (zh) | 2017-07-04 |
CN105355469B (zh) | 2018-01-23 |
CN105355469A (zh) | 2016-02-24 |
TW201007792A (en) | 2010-02-16 |
CN102047360A (zh) | 2011-05-04 |
US8002921B2 (en) | 2011-08-23 |
WO2009148493A2 (en) | 2009-12-10 |
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