WO2007132936A1 - Materiau carboné pour électrode de condensateur électrique à double couche et condensateur électrique à double couche l'utilisant - Google Patents

Materiau carboné pour électrode de condensateur électrique à double couche et condensateur électrique à double couche l'utilisant Download PDF

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Publication number
WO2007132936A1
WO2007132936A1 PCT/JP2007/060302 JP2007060302W WO2007132936A1 WO 2007132936 A1 WO2007132936 A1 WO 2007132936A1 JP 2007060302 W JP2007060302 W JP 2007060302W WO 2007132936 A1 WO2007132936 A1 WO 2007132936A1
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Prior art keywords
double layer
electric double
layer capacitor
carbon
carbon material
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PCT/JP2007/060302
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English (en)
Japanese (ja)
Inventor
Masaki Fujii
Kiwamu Takeshita
Hiroshi Kato
Keizou Ikai
Tamotsu Tano
Takashi Oyama
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Nippon Oil Corporation
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Application filed by Nippon Oil Corporation filed Critical Nippon Oil Corporation
Priority to JP2008515606A priority Critical patent/JPWO2007132936A1/ja
Publication of WO2007132936A1 publication Critical patent/WO2007132936A1/fr

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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
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/312—Preparation
    • C01B32/342—Preparation characterised by non-gaseous activating agents
    • 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
    • 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

Definitions

  • the present invention relates to a carbon material for an electric double layer capacitor electrode and an electric double layer capacitor using the same.
  • a carbon electrode mainly composed of a carbon material As a capacitor electrode, a carbon electrode mainly composed of a carbon material is used, and activated carbon is known as the carbon material.
  • Activated carbon is activated by carbonizing and activating carbon sources derived from coal and petroleum-based raw materials such as coke pitch, synthetic polymer carbon sources such as phenolic resins, or plant-derived carbon sources such as coconut shells. Obtainable.
  • Patent Document 1 Japanese Patent Laid-Open No. Hei 8- 1 6 2 3 75
  • a resin selected from phenol resin, furan resin, and polyacrylo-tolyl resin is carbonized to obtain a carbon material, which is then activated with potassium hydroxide. It is proposed that the activated carbon obtained in this way be used for electrodes for electric double layer capacitors.
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2 0 0 2-1 0 4 8 1 7
  • an activated carbon obtained by using coal-based isotropic pitch as a raw material and activated by using Al force is used as an electrode for an electric double layer capacitor. It is proposed to be used for
  • Patent Document 3 Japanese Laid-Open Patent Publication No. 11-31 6 3 7
  • the peak intensity ratio is 0.7 or more
  • the ratio of the peak of the D-band graph item component to the peak intensity of the G-band graph item component is 1.0 or more.
  • a carbon material for an electric double layer capacitor electrode is proposed.
  • the capacitance per surface area has been improved, it is still insufficient from the viewpoint of capacitance per unit volume.
  • Patent Document 1 Japanese Patent Laid-Open No. 8-162375
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2002-1048 17
  • Patent Document 3 Japanese Patent Application Laid-Open No. 11 1 31 6 37
  • the inventors of the present invention have focused on the Raman spectrum and electrode performance of the carbon material for the electric double layer capacitor electrode, particularly the capacitance per unit volume, and as a result of extensively examining the relationship between the two, The present invention has been completed by finding that the above-mentioned problems can be solved by producing activated carbon having a specific Raman spectrum pattern.
  • the present invention is an activated carbon made from graphitizable carbon as a raw material, and in the Raman spectrum, the peak intensity ratio of the G-band amorphous carbon component to the peak intensity of the G-band graphite component is 0.0.
  • the ratio of the peak intensity of the D-band dullite component to the peak intensity of the graph-eye component of the G-band is from 0.01 to 0.80.
  • the present invention relates to a carbon material for a multilayer capacitor electrode.
  • the present invention also relates to the carbon material for an electric double layer capacitor electrode as described above, wherein the graphitizable carbon material is petroleum raw coke.
  • the present invention also relates to the carbon material for an electric double layer capacitor electrode as described above, wherein the specific surface area by the BET method is 400 to 2400 m 2 / g.
  • the pore diameter by the nitrogen gas adsorption method is 0.1 to 50 nm
  • the pore volume is 0.1 to 3 ml lZg
  • the pore diameter by the mercury intrusion method is 0.05 to 300 ⁇ m.
  • the pore volume is 0.4 to 5 m 1 Zg, and the carbon material for an electric double layer capacitor electrode as described above.
  • the present invention relates to an electric double layer capacitor using the carbon material for an electric double layer capacitor electrode described above. ⁇ The invention's effect]
  • the present invention uses an easily graphitized carbon material as a raw material, and by using activated carbon having a specific Raman spectrum pattern as a carbon material for an electric double layer capacitor electrode, the electrostatic capacity per unit volume is extremely high. An electrode can be obtained.
  • General activated carbon consists of synthetic polymer carbon such as phenol resin or plant-derived carbon such as coconut shell as carbon source and non-graphitized carbon called non-graphitizable carbon. Its crystal structure consists of a turbulent structure in which the graphite layers are disordered. When the Raman spectrum of this activated carbon is measured, it is called the G-band, which is derived from the graphite crystal structure. It is called a 160-cm peak near 1 and the disturbance of the graphite crystal structure. -Two peaks with a peak near 1 are measured, and the ratio of these peak intensities is used as a parameter indicating crystallinity (degree of graphitization).
  • the crystal structure of activated carbon that uses graphitizable carbon as a carbon source, such as petroleum coke and coal pitch coatas is called a crystallite in which small graphite layers are stacked in parallel. It is characterized by a mixture of crystal structures and undeveloped crystal structures. This is due to the fact that the raw carbon material already contains a portion showing a crystal structure and an undeveloped portion. Therefore, the produced activated carbon also contains a crystal structure and an undeveloped crystal structure. .
  • the crystal structure (called the graphite component) and the undeveloped crystal structure (called the amorphous carbon component) coexist.
  • the peaks There are four peaks: the G-band peak of the graphite component and the G-band peak of the monomonolithic carbon component, and the D-band peak of the graphite component and the D-band peak of the amorphous carbon component. It is thought that there was overlap.
  • the ratio of the peak intensity of the D band (denoted as I d) to the peak intensity of the G band (denoted as Ig) It is not appropriate to evaluate the crystal structure with I d _I g). Therefore, these two peaks were coupled using a Gaussian function, and the G-band peak was changed to the peak of the graph item component in the G-band (I g (G), 1 600 cm).
  • Figure 1 shows the Raman spectrum of the carbon material for the electric double layer capacitor electrode of the present invention.
  • Figure 2 shows the Raman spectrum of the curve fitting process shown in Figure 1.
  • the peak intensity of the amorphous carbon component in the G-band relative to the peak intensity (I g (G)) of the graphite component in the G one band (The upper limit of the ratio of I g ()) (1 ⁇ (A) / I g (G)) must be 0.60 or less, preferably 0.50 or less, and the lower limit is 0.01 or more. Preferably, it is 0.10 or more.
  • the ratio of the peak intensity (I d (G)) of the graph eye component in the D band to the peak intensity (I g (G)) of the graph eye component in the G band (I d (G ) / I g (G)) must be 0.80 or less, preferably 0.70 or less, and the lower limit is 0.0 1 or more, preferably 0.1 or more. is there.
  • the peak intensity ratio (I g (A) / I g (G)) of the amorphous carbon component in the G—band to the peak intensity of the graph item component in the G—band is greater than 0.6, The ratio of the amorphous carbon component to the graphite component is large, the crystallinity development as a whole is insufficient, and the capacitance per unit volume is insufficient.
  • the ratio of the peak intensity of the graph item component in the D band (I d (G) / I g (G)) to the peak intensity of the graph item component in the G band is greater than 0.8
  • the crystal of the graphite component is insufficiently developed, and the electrostatic capacity per unit volume is insufficient.
  • the carbon material for an electric double layer capacitor electrode of the present invention is made from graphitizable carbon as a raw material. can get.
  • graphitizable carbon include carbonized petroleum cotas and coal pitch coke, and mesophase pitch and mesophase carbon fiber spun from it, which are infusible and carbonized. Petroleum coke is preferred, and petroleum raw coatus is particularly preferred.
  • FIG. 3 shows the observation result of the carbon material for the electric double layer capacitor electrode of the present invention by an electron microscope. It is observed that crystallites in which several layers of 1 to 2 nm long dullite layers are stacked are arranged irregularly. In addition, these crystallites are swelled and curved, and the force S can be seen everywhere. Such crystallite layers and crystallite gaps form pores and are expected to exhibit a high specific surface area. Determined.
  • the pore surface of the activated carbon is mainly formed from the crystal plane of the graphite layer crystallite, and the electric double layer of charge is formed on the plane. It is thought that it is formed.
  • a capacitor electrode material with a large capacitance is required to have a high specific surface area and a highly crystalline structure.
  • Petroleum raw coatus used as a starting material in the present invention is a laminated assembly of polycyclic aromatic compounds having alkyl side chains, and is a heat-infusible solid.
  • Petroleum coke is a product mainly composed of solid carbon obtained by pyrolysis (coking) of heavy oil fractions at a high temperature of about 500 ° C. Called Kotas.
  • the raw cotas produced by the delayed coking method have a volatile content of 6 to 13 mass%, and the raw cotus produced by the fluid coking method has a volatile content of 4 to 7 mass%.
  • raw coatas produced by any method may be used, but fresh coatas produced by a delayed coking method that is easily available and stable in quality is particularly suitable.
  • the raw petroleum coke thus obtained is calcined.
  • the calcination is usually carried out in an inert gas in a temperature range of 500 to 900 ° C, more preferably 500 to 800 ° C.
  • the rate of temperature rise is too slow, it takes time for the treatment process, and conversely, a too rapid temperature rise leads to explosive volatilization of volatile components, destroying the crystal structure, and A carbon material for a double layer capacitor electrode cannot be obtained, and the cost of the apparatus increases.
  • it is desirable to set the heating rate at about 30 to 600 ° C / hour, more preferably about 60 to 300 ° C / hour.
  • This holding time is, for example, about 10 minutes to 2 hours, and more preferably 30 minutes to 1 hour.
  • the carbonized product obtained by firing in this way is activated by a known method to obtain activated carbon.
  • the reaction conditions of the activation reaction in the activation process are not particularly limited as long as this reaction can be sufficiently advanced, and the activation reaction is performed under the same reaction conditions as known activation reactions performed in the production of normal activated carbon. It can be performed.
  • the activation reaction in the activation step is performed by mixing an alkali metal hydroxide performed in normal activated carbon production with the carbonized product after calcination, preferably 400 ° C or higher, more preferably 600 ° C or higher, more preferably Can be performed by heating under high temperature conditions of 700 ° C or higher.
  • the upper limit of the heating temperature is not particularly limited as long as it is a temperature at which the activation reaction proceeds without hindrance, but it is usually preferably 900 ° C or lower.
  • alkali metal hydroxide used for the activation reaction in the activation process examples include KOH, NaOH, RbOH, and CsOH. Of these, KOH is preferred from the viewpoint of activation effect.
  • the alkali activation method is usually performed by mixing an activator such as an alkali metal compound and a carbonized product and heating.
  • the mixing ratio of the carbonized product and the activator is not particularly limited, but usually the mass ratio of the two (carbonized product: activator) is preferably in the range of 1: 0.5 to 1: 5. The range of 1-1: 3 is more preferable.
  • the carbon material for an electric double layer capacitor electrode is usually obtained through alkali washing, acid washing, water washing, drying and pulverization processes.
  • an alkali metal compound used as the activator, the amount of alkali metal remaining in the carbon material should be lower than a level that may adversely affect the electric double layer capacitor.
  • a level that may adversely affect the electric double layer capacitor usually, for example, pH of washing wastewater It is desirable to perform cleaning so that the strength is reduced to about 8 and to remove as much metal as possible.
  • the amount of alkali metal is preferably 1 000 mass ppm or less, more preferably 200 mass ppm or less.
  • the pulverization step is performed by a known method, and it is usually desirable to obtain a fine powder having an average particle size of 0.5 to 50 ⁇ m, preferably about 1 to 20 m.
  • the specific surface area by the BET method of the carbon material for the electric double layer capacitor electrode of the present invention obtained by the activation treatment in this way is 400 to 240. Preferably, it is 500 to 230 O mS / g, and more preferably 600 to 2200 m 2 Zg. If the specific surface area exceeds 2400 m 2 / g, the capacity per weight is saturated and the capacity per volume decreases, which is not preferable. If the specific surface area is less than 40 Om 2 / g, a satisfactory capacity cannot be obtained. Therefore, it is not preferable.
  • the pore volume of activated carbon having a pore diameter of 0.1 to 50 nm by nitrogen gas adsorption method is 0.1 to 3 m 1 / g, preferably 0.2 to 2 ml Zg, and more preferably 0.25 to 2.5 ml / g.
  • the pore volume of activated carbon having a pore diameter of 0.05 to 300 ⁇ m by mercury porosimetry is 0.4 to 5 m 1 / g, preferably 0.5 to 4.7 m 2 / g. More preferably, it is 0.6 to 4.5 m 2 / g.
  • the electric double layer capacitor of the present invention will be described.
  • the electric double layer capacitor of the present invention comprises an electrode containing the electrode carbon material prepared as described above.
  • the electrode may be, for example, an electrode carbon material and a binder, more preferably a conductive agent, and may be an electrode integrated with a current collector.
  • binder As the binder used here, known ones can be used, for example, polyolefins such as polyethylene and polypropylene, polytetrafluoroethylene, polyvinylidene fluoride, fluororefin butyl ether copolymer Fluorinated polymers such as coalesced polymers, celluloses such as carboxymethylcellulose, Examples include bulle polymers such as polybulurpyrrolidone and polyvinyl alcohol, and polyacrylic acid.
  • the content of the binder in the electrode is not particularly limited, but is appropriately selected within the range of about 0.1 to 30% by mass with respect to the total amount of the electrode carbon material and the binder.
  • the conductive agent powders such as carbon black, powder graphite, titanium oxide, ruthenium oxide are used.
  • the blending amount of the conductive agent in the electrode is appropriately selected according to the blending purpose, but is usually 1 to 50% by mass, preferably 2 with respect to the total amount of the carbon material for the electrode, the binder and the conductive agent. It is appropriately selected within a range of about ⁇ 30% by mass.
  • a known method is appropriately applied as a known method is appropriately applied. For example, a solvent having a property of dissolving the binder is added to the above components to form a slurry. A method of uniformly applying the product onto the current collector or a method of kneading the above components without adding a solvent and then performing pressure molding at normal temperature or under heating is employed.
  • a material having a known material shape can be used as the current collector.
  • a metal such as aluminum, titanium, tantalum, or nickel, or an alloy such as stainless steel can be used.
  • the unit cell of the electric double layer capacitor of the present invention generally uses a pair of the above electrodes as a positive electrode and a negative electrode, faces each other via a separator (polypropylene fiber nonwoven fabric, glass fiber nonwoven fabric, synthetic cellulose paper, etc.), and is immersed in an electrolytic solution. It is formed by.
  • a separator polypropylene fiber nonwoven fabric, glass fiber nonwoven fabric, synthetic cellulose paper, etc.
  • the electrolytic solution a known aqueous electrolytic solution or organic electrolytic solution can be used, but it is more preferable to use an organic electrolytic solution.
  • an organic electrolytic solution those used as a solvent for an electrochemical electrolytic solution can be used.
  • propylene carbonate ethylene carbonate, butylene carbonate, ⁇ -propyl lactone, sulfolane, sulfolane derivatives, 3-Methylsulfolane, 1,2-dimethoxetane, acetonitrile, glutaronitrile, pareronitrile, dimethylformamide, dimethylsulfoxide, tetrahydrofuran, dimethoxy cartene, methinorefluoroolate, dimethylolene carbonate, jetinole
  • Examples thereof include carbonate and ethylmethyl carbonate.
  • the supporting electrolyte in the organic electrolytic solution is not particularly limited, but various salts such as salts, acids, alkalis and the like that are usually used in the field of electrochemistry or the field of batteries can be used.
  • alkali metal salts Inorganic ion salts such as alkaline earth metal salts, quaternary ammonium salts, cyclic quaternary ammonium salts, quaternary phosphonium salts, etc., (C 2 H 5 ) 4 NBF 4 , (C 2 H 5 ) 3 ( CH 3) NB F 4, ( C 2 H 5) 4 PB F 4, given as (C 2 H 5) a ( CH 3) those PBF 4 and the like are preferable.
  • the concentration of these salts in the electrolytic solution is appropriately selected within a range of usually about 0.5 :! to 5 m 0 1/1, preferably about 0.5 to 3 mol / l.
  • the specific configuration of the electric double layer capacitor is not particularly limited.
  • a metal case with a separator interposed between a pair of thin sheet or disk electrodes (positive electrode and negative electrode) having a thickness of 10 to 500 ⁇ m examples include a coin type housed in a coil, a wound type in which a pair of electrodes are wound through a separator, and a stacked type in which a large number of electrode groups are stacked through a separator.
  • the carbon material for an electrode of the electric double layer capacitor of the present invention has a high electrostatic capacity per unit volume of the electrode, and an electrode with a low cost can be obtained.
  • Table 1 shows the physical properties of the petroleum raw coatas used.
  • the measurement methods for volatile matter (VM), true density (RD), and hydrogen / carbon atomic ratio (H / C) are as follows.
  • Volatile matter Measured according to the method described in JIS M88 1 2 “Coal and cokes—industrial analysis”.
  • Petroleum raw coke was fired under the conditions shown in Table 2. At that time, the rate of temperature increase was set to 200 ° C./hour.
  • the calcined carbide was mixed with 100 parts by mass of potassium hydroxide so that the mass was 220 parts by mass, and the activation reaction was allowed to proceed for 1 hour at 700 ° C in a nitrogen gas atmosphere. Washing with water and acid washing (using hydrochloric acid) were repeated to remove the remaining metallic strength from the carbon material, followed by drying to obtain an activated product (carbon material for an electric double layer capacitor electrode). About the obtained activation material, the Raman spectrum was calculated
  • Raman spectrum measurement Measured at a laser wavelength of 5 3 2 nm using a microscopic laser Raman spectrometer (manufactured by Kaiser Hall Probe).
  • Specific surface area Measured by nitrogen gas adsorption method (BET method).
  • Capacitance The above coin cell was charged to 2.7 V at a constant current of 2 m ⁇ per 1 F. 30 minutes after charging, after holding at 2.7 V, 1 mA constant current discharge at 20 went. In the discharge curve, when 80% of the charging voltage is 1, 1% is 40%, the time it takes for the voltage to drop from 80% to 40% is ⁇ ⁇ , and the discharge current value is I.
  • the capacitance [F] is calculated according to the following formula, and divided by the mass of the activated carbon contained in the electrode (total of the positive electrode and the negative electrode), the capacitance [FZg] per mass is calculated. The capacitance [FZc c] was calculated by multiplying this capacitance [F // g] by the electrode density [g / cc].
  • Example 2 The same procedure as in Example 1 was performed except that phenol resin (Resitop PGA-4 5 2 8 manufactured by Gunei Chemical Industry Co., Ltd.) carbonized at 700 ° C was used as the carbon material for the electrode. Then, an electric double layer capacitor was fabricated and the capacitance was measured. When the non-graphitizable carbon obtained by carbonizing such phenol resin is used as a raw material, the capacitance per unit volume of the electric double layer capacitor is 16 F / cc, and it is easily graphitized. Compared to Example 1 using a carbon material as a raw material, it was extremely low.
  • phenol resin Resitop PGA-4 5 2 8 manufactured by Gunei Chemical Industry Co., Ltd.
  • An electric double layer capacitor was fabricated in the same manner as in Example 1 except that steam activated activated coconut shell activated carbon (Ajinomoto Fine Techno Co., Ltd. Y-1 80 C) was used as the electrode carbon material. The capacity was measured. When the non-graphitizable carbon obtained by carbonizing the coconut shell is used as the raw material, the capacitance per unit volume of the electric double layer capacitor is 19 F / cc, and the graphitizable carbon material is used as the raw material. Compared to Example 1, it was extremely low.
  • FIG. 1 shows a Raman spectrum of the carbon material for an electric double layer capacitor electrode of the present invention.
  • Fig. 2 shows an example of the curve fitting process for the Raman spectrum of Fig. 1.
  • FIG. 3 shows an electron micrograph of the carbon material for an electric double layer capacitor electrode of the present invention.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

L'invention concerne un charbon actif utilisant un carbone pouvant facilement être graphitisé en tant que matière première, ledit charbon actif étant utilisé en tant que matériau d'électrode de faible coût pour des condensateurs électriques à double couche ayant une capacitance par unité de volume de l'électrode élevée. L'invention concerne notamment un matériau carboné pour électrodes de condensateur électrique à double couche, caractérisé en ce que, dans le spectre Raman, le rapport de l'intensité du pic du composant carboné amorphe de la bande G et de l'intensité du pic du composant graphite de la bande G est compris entre 0,01 et 0,60 et le rapport de l'intensité du pic du composant graphite de la bande D et de l'intensité du pic du composant graphite de la bande G est compris entre 0,01 et 0,80.
PCT/JP2007/060302 2006-05-15 2007-05-15 Materiau carboné pour électrode de condensateur électrique à double couche et condensateur électrique à double couche l'utilisant WO2007132936A1 (fr)

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JP2008515606A JPWO2007132936A1 (ja) 2006-05-15 2007-05-15 電気二重層キャパシタ電極用炭素材およびこれを用いた電気二重層キャパシタ

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JP2006135048 2006-05-15
JP2006-135048 2006-05-15

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WO2007132936A1 true WO2007132936A1 (fr) 2007-11-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015220152A (ja) * 2014-05-20 2015-12-07 本田技研工業株式会社 負極活物質、アルカリイオン二次電池及び電気キャパシタ
JP2017147338A (ja) * 2016-02-17 2017-08-24 株式会社キャタラー キャパシタ用炭素材料及びキャパシタ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1131637A (ja) * 1997-05-16 1999-02-02 Asahi Glass Co Ltd 電気二重層キャパシタ、そのための炭素材料及び電極
WO2001093289A1 (fr) * 2000-05-31 2001-12-06 Kanebo, Limited Materiau d'electrode et condensateur
JP2003077767A (ja) * 2001-08-31 2003-03-14 Asahi Glass Co Ltd 電気二重層キャパシタ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1131637A (ja) * 1997-05-16 1999-02-02 Asahi Glass Co Ltd 電気二重層キャパシタ、そのための炭素材料及び電極
WO2001093289A1 (fr) * 2000-05-31 2001-12-06 Kanebo, Limited Materiau d'electrode et condensateur
JP2003077767A (ja) * 2001-08-31 2003-03-14 Asahi Glass Co Ltd 電気二重層キャパシタ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015220152A (ja) * 2014-05-20 2015-12-07 本田技研工業株式会社 負極活物質、アルカリイオン二次電池及び電気キャパシタ
JP2017147338A (ja) * 2016-02-17 2017-08-24 株式会社キャタラー キャパシタ用炭素材料及びキャパシタ

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