JPWO2014049991A1 - キャパシタ用電極およびそれを用いたキャパシタ - Google Patents
キャパシタ用電極およびそれを用いたキャパシタ Download PDFInfo
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- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
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Classifications
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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
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- 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
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- 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
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- 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
- H01G11/66—Current collectors
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
以下、本実施の形態によるキャパシタの具体例の特性試験について説明する。
2 正極
2A,3A 集電体
2B,3B 電極層
3 負極
4 セパレータ
5A,5B リード線
6 外装体
7 封口部材
10 キャパシタ
11 第1炭素材料粒子
12 第2炭素材料粒子
13 結着剤
14 分散媒
15 第1分散剤
16 第2分散剤
17 分散剤
Claims (12)
- 集電体と、
前記集電体に接して設けられ、カチオンを吸蔵および放出可能な電極層と、を備え、
前記電極層は、カチオンを吸蔵および放出可能な第1炭素材料粒子と、カチオンを吸蔵および放出可能で前記第1炭素材料粒子の一次粒子の平均粒径よりも一次粒子の平均粒径が小さい第2炭素材料粒子とを含み、
前記電極層における前記第2炭素材料粒子の含有量は前記第1炭素材料粒子の含有量より少ない、
キャパシタ用電極。 - 前記第2炭素材料粒子は、層状結晶構造を有する、
請求項1記載のキャパシタ用電極。 - 前記第2炭素材料粒子は、350nm以上、500nm以下の前記一次粒子の平均粒径を有するサーマルブラックであり、前記第2炭素材料粒子の結晶子サイズを層間距離で除した値が12以上であり、前記第2炭素材料粒子の真密度が2.11g/cm3以下である、
請求項2記載のキャパシタ用電極。 - 前記第1炭素材料粒子はハードカーボンである、
請求項1記載のキャパシタ用電極。 - 前記第1炭素材料粒子の前記一次粒子の平均粒径は1μm以上、10μm以下であり、前記第2炭素材料粒子の前記一次粒子の平均粒径は350nm以上、500nm以下であり、前記第2炭素材料粒子の前記電極層に対する含有率が0wt%を超えて40wt%以下であり、前記電極層の表面粗さRzが5μm以上である、
請求項1記載のキャパシタ用電極。 - 前記電極層はセルロースまたはその誘導体である第1分散剤と、前記第1分散剤より分子量が小さいセルロースまたはその誘導体である第2分散剤とをさらに含み、
前記電極層における前記第2分散剤の含有量は前記第1分散剤の含有量より少ない、
請求項1記載のキャパシタ用電極。 - アニオンを吸脱着できる正極と、
前記正極に対向する負極と、
前記正極と前記負極との間に介在する電解質と、を備え、
前記負極は、
集電体と、
前記集電体に接して設けられ、カチオンを吸蔵および放出可能な電極層と、を有し、
前記電極層は、カチオンを吸蔵および放出可能な第1炭素材料粒子と、カチオンを吸蔵および放出可能で前記第1炭素材料粒子の一次粒子の平均粒径よりも一次粒子の平均粒径が小さい第2炭素材料粒子とを含み、
前記電極層における前記第2炭素材料粒子の含有量は前記第1炭素材料粒子の含有量より少ない、
キャパシタ。 - 前記第2炭素材料粒子は、層状結晶構造を有する、
請求項7記載のキャパシタ。 - 前記第2炭素材料粒子は、350nm以上、500nm以下の前記一次粒子の平均粒径を有するサーマルブラックであり、前記第2炭素材料粒子の結晶子サイズを層間距離で除した値が12以上であり、前記第2炭素材料粒子の真密度が2.11g/cm3以下である、
請求項8記載のキャパシタ。 - 前記第1炭素材料粒子はハードカーボンである、
請求項7記載のキャパシタ。 - 前記第1炭素材料粒子の前記一次粒子の平均粒径は1μm以上、10μm以下であり、前記第2炭素材料粒子の前記一次粒子の平均粒径は350nm以上、500nm以下であり、前記第2炭素材料粒子の前記電極層に対する含有率が0wt%を超えて40wt%以下であり、前記電極層の表面粗さRzが5μm以上である、
請求項7記載のキャパシタ。 - 前記電極層はセルロースまたはその誘導体である第1分散剤と、前記第1分散剤より分子量が小さいセルロースまたはその誘導体である第2分散剤とをさらに含み、
前記電極層における前記第2分散剤の含有量は前記第1分散剤の含有量より少ない、
請求項7記載のキャパシタ。
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JPH11242954A (ja) * | 1997-01-28 | 1999-09-07 | Canon Inc | 電極構造体、二次電池及びそれらの製造方法 |
JP2012054552A (ja) * | 2010-08-31 | 2012-03-15 | Samsung Electro-Mechanics Co Ltd | リチウムイオンキャパシタ |
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DE69836514T2 (de) | 1997-01-28 | 2007-09-13 | Canon K.K. | Elektrodenkörper, mit diesem versehener Akkumulator, sowie Herstellung des Elektrodenkörpers und des Akkumulators |
JP2006059923A (ja) * | 2004-08-18 | 2006-03-02 | Nippon Oil Corp | 電気二重層キャパシタの電極用炭素材の原料炭組成物 |
JP2006164689A (ja) * | 2004-12-06 | 2006-06-22 | Enerstruct Kk | 電極構造体、二次電池及びキャパシタ |
JP4732072B2 (ja) | 2005-08-30 | 2011-07-27 | 富士重工業株式会社 | 捲回型リチウムイオンキャパシタ |
WO2007055087A1 (ja) | 2005-10-20 | 2007-05-18 | Mitsubishi Chemical Corporation | リチウム二次電池及びそれに用いる非水系電解液 |
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