JP5281100B2 - 電気二重層キャパシタ及びその製造方法 - Google Patents
電気二重層キャパシタ及びその製造方法 Download PDFInfo
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- JP5281100B2 JP5281100B2 JP2010541971A JP2010541971A JP5281100B2 JP 5281100 B2 JP5281100 B2 JP 5281100B2 JP 2010541971 A JP2010541971 A JP 2010541971A JP 2010541971 A JP2010541971 A JP 2010541971A JP 5281100 B2 JP5281100 B2 JP 5281100B2
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- 229910052737 gold Inorganic materials 0.000 description 3
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- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
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- 239000002071 nanotube Substances 0.000 description 2
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- 229920000178 Acrylic resin Polymers 0.000 description 1
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- RAXXELZNTBOGNW-UHFFFAOYSA-O Imidazolium Chemical compound C1=C[NH+]=CN1 RAXXELZNTBOGNW-UHFFFAOYSA-O 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- RWRDLPDLKQPQOW-UHFFFAOYSA-O Pyrrolidinium ion Chemical compound C1CC[NH2+]C1 RWRDLPDLKQPQOW-UHFFFAOYSA-O 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000001241 arc-discharge method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- DFFDSQBEGQFJJU-UHFFFAOYSA-M butyl carbonate Chemical compound CCCCOC([O-])=O DFFDSQBEGQFJJU-UHFFFAOYSA-M 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 239000002079 double walled nanotube Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
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- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 229910010272 inorganic material Inorganic materials 0.000 description 1
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- 230000010354 integration Effects 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
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- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- SEACXNRNJAXIBM-UHFFFAOYSA-N triethyl(methyl)azanium Chemical compound CC[N+](C)(CC)CC SEACXNRNJAXIBM-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
- H01G11/12—Stacked hybrid or EDL capacitors
-
- 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
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
- H01G11/28—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
-
- 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
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Materials Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Description
本比較例では、図1の比較例に従い、セパレータと積層せずに、集電体の表面に立設した微細繊維を直接圧縮する方法を行った。微細繊維としてカーボンナノチューブを用いた。
本実施例では、集電体の表面に立設した微細繊維の上にセパレータを置き、極板とセパレータとからなる積層体に圧力をかけることにより、電気二重層キャパシタ用電極を製造した。微細繊維としてカーボンナノチューブを用いた。
本実施例では、実施例1で製造した、正極とセパレータと負極とが圧着されて一体化した電気二重層キャパシタ用電極を用いて、電気二重層キャパシタを製造した。
本実施例では、実施例1で製造した、正極と正極用のセパレータとを圧着して一体化し、負極と負極用のセパレータとを圧着して一体化した後、セパレータ同士を重ねて電気二重層キャパシタを製造した例について説明する。
本実施例では、高圧で集電体上に立設した微細繊維とセパレータとを圧着する前に、微細繊維を弱い圧力で圧縮する行程を実施することによる利点を検討した。微細繊維としてカーボンナノチューブを用いた。
201、203 集電体
202、204 微細繊維
205、205a、205b セパレータ
206 正極
207 負極
301、303 集電体
302、304 微細繊維
305 セパレータ
306 正極
307 負極
401、403 集電体
402、404 微細繊維
405a、405b セパレータ
406 正極
407 負極
501、503 集電体
502、504 微細繊維
505 セパレータ
506 正極
507 負極
510、511、512、513 予備加圧用板
601、603 集電体
602、604 微細繊維
605a、605b セパレータ
606 正極
607 負極
610、611、612、613 予備加圧用板
1100 電気二重層キャパシタ
1101 電源
1102 陽イオン
1103 負電荷
1104 集電体
1105 活物質
1106 電解液
1107 集電体
1108 活物質
1109 正電荷
1110 陰イオン
1111 正極
1112 負極
1201 電源
1202 正極に発生したコンデンサ
1203 負極に発生したコンデンサ
1301 集電体
1302 微細繊維
1303、1304 圧縮用板
1305 集電体に残った微細繊維
1306 転写された微細繊維
Claims (13)
- 容器内に、正極、セパレータ及び負極をこの順で積層して含み、前記正極と前記負極との間が電解液で満たされている電気二重層キャパシタであって、
前記正極及び前記負極のうちいずれか一方又は双方の極板が、集電体と、前記集電体の表面に一端が電気的に接続するように立設された複数本の導電性微細繊維とからなり、
前記極板の前記表面側が前記セパレータで被覆され、
前記極板とセパレータとが圧着され一体化していることを特徴とする電気二重層キャパシタ。 - 前記正極と1枚のセパレータと前記負極がこの順序で、圧着され一体化している、請求項1記載の電気二重層キャパシタ。
- 前記セパレータは、正極用のセパレータと負極用のセパレータを含み、
前記正極と前記正極用のセパレータとが圧着され一体化しており、前記負極と前記負極用のセパレータとが圧着され一体化している、請求項1記載の電気二重層キャパシタ。 - 前記微細繊維は、直径が0.1nm〜100nmである、請求項1〜3のいずれかに記載の電気二重層キャパシタ。
- 前記微細繊維は、カーボンナノチューブである、請求項1〜4のいずれかに記載の電気二重層キャパシタ。
- 前記セパレータは、熱硬化性樹脂以外の材料からなる、請求項1〜5のいずれかに記載の電気二重層キャパシタ。
- 容器内に、正極、セパレータ及び負極をこの順で積層して含み、前記正極と前記負極との間が電解液で満たされている電気二重層キャパシタの製造方法であって、
集電体と、前記集電体の表面に一端が電気的に接続するように立設された複数本の導電性微細繊維とからなる極板、及び、セパレータを準備する準備工程、
前記極板の前記表面側を前記セパレータで被覆して、前記極板と前記セパレータからなる積層体を形成する被覆工程、
前記積層体に上下から30MPa以上70MPa以下の圧力をかけることで、前記極板とセパレータとを圧着し、一体化することで、圧着積層体を形成する圧着工程、
前記圧着積層体に電解液を含浸させる含浸工程、を含む、電気二重層キャパシタの製造方法。 - 前記準備工程において、2枚の極板及び1枚のセパレータを準備し、
前記被覆工程において、前記2枚の極板それぞれの前記表面が前記1枚のセパレータを間に挟んで対向するように、前記2枚の極板と前記1枚のセパレータとを積層し、
前記圧着工程において、前記2枚の極板と前記1枚のセパレータとが圧着してなる圧着積層体を形成する、請求項7に記載の製造方法。 - 前記準備工程において、2枚の極板及び2枚のセパレータを準備し、
前記被覆工程において、前記2枚の極板における前記表面を各々1枚のセパレータで被覆して二組の積層体を形成し、
前記圧着工程において、1枚の極板と1枚のセパレータとが圧着してなる圧着積層体を二組形成し、
前記含浸工程の前後に、前記二組の圧着積層体を、前記セパレータ同士が接触するように重ね合わせる工程をさらに含む、請求項7に記載の製造方法。 - 前記準備工程の後で前記被覆工程の前に、前記集電体上の前記導電性微細繊維に対して、前記圧着工程における前記圧力よりも小さい圧力をかけることで、前記微細繊維を傾斜させる予備加圧工程をさらに含む、請求項7〜9のいずれかに記載の製造方法。
- 前記微細繊維は、直径が0.1nm〜100nmである、請求項7〜10のいずれかに記載の製造方法。
- 前記微細繊維は、カーボンナノチューブである、請求項7〜11のいずれかに記載の製造方法。
- 前記カーボンナノチューブは、触媒を介して前記集電体の前記表面上に立設されている、請求項12に記載の製造方法。
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