WO2008078634A1 - 蓄電器電極用バインダー - Google Patents
蓄電器電極用バインダー Download PDFInfo
- Publication number
- WO2008078634A1 WO2008078634A1 PCT/JP2007/074472 JP2007074472W WO2008078634A1 WO 2008078634 A1 WO2008078634 A1 WO 2008078634A1 JP 2007074472 W JP2007074472 W JP 2007074472W WO 2008078634 A1 WO2008078634 A1 WO 2008078634A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- binder
- electrode sheet
- aramid
- sheet according
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 34
- 239000011230 binding agent Substances 0.000 title claims abstract description 31
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 36
- 239000007772 electrode material Substances 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 239000004760 aramid Substances 0.000 claims abstract description 26
- 239000002002 slurry Substances 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 15
- -1 polymetaphenylene isophthalamide Polymers 0.000 claims description 10
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000011883 electrode binding agent Substances 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 5
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical group CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 150000001408 amides Chemical group 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000008151 electrolyte solution Substances 0.000 abstract description 2
- 241000531908 Aramides Species 0.000 description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 17
- 238000005259 measurement Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000000576 coating method Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 239000006258 conductive agent Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000002847 impedance measurement Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000007773 negative electrode material Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000007600 charging Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- JQVALDCWTQRVQE-UHFFFAOYSA-N dilithium;dioxido(dioxo)chromium Chemical compound [Li+].[Li+].[O-][Cr]([O-])(=O)=O JQVALDCWTQRVQE-UHFFFAOYSA-N 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- MHSKRLJMQQNJNC-UHFFFAOYSA-N terephthalamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C=C1 MHSKRLJMQQNJNC-UHFFFAOYSA-N 0.000 description 2
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 1
- 229920003026 Acene Polymers 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 229920006292 Polyphenylene isophthalamide Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011335 coal coke Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010281 constant-current constant-voltage charging Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- CCGKOQOJPYTBIH-UHFFFAOYSA-N ethenone Chemical compound C=C=O CCGKOQOJPYTBIH-UHFFFAOYSA-N 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002931 mesocarbon microbead Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000006253 pitch coke Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000004354 sulfur functional group Chemical group 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active 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
- H01G11/32—Carbon-based
- H01G11/38—Carbon pastes or blends; Binders or additives therein
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being 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
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to an electrode binder useful for constituting electrodes of capacitors such as capacitors and lithium secondary batteries.
- binders include P V d F (polyvinylidene fluoride) and P T F E
- PTFE polytetrafluoroethylene
- Japanese Patent Laid-Open No. 2 00 1-3 4 5 10 3 discloses a secondary battery negative electrode active material with high charge / discharge efficiency, in order to provide an electrochemically active carbon in the main chain or side chain. It is disclosed that, for example, aramid (aromatic polyamide) is used as a negative electrode active material / binder for a secondary battery using an organic polymer having a sulfur group as a part of a negative electrode active material.
- aramid aromatic polyamide
- the main object of the present invention is to show a high powder electrode material binding property and adhesion to the collector electrode, and also to have a powder electrode material bound, that is, conductivity in the state of the electrode sheet and wettability to the electrolyte. This is to provide a binder for a storage electrode that is excellent in heat resistance, has high heat resistance, and is electrochemically stable.
- a further object of the present invention is to provide a capacitor, a battery or other power storage device using the binder.
- the present invention provides a capacitor electrode binder comprising an aramid granulated by heat treatment.
- the present invention also provides an electrode sheet produced by mixing a powder electrode material, a binder, and a solvent to prepare a slurry, and applying the slurry to a collector electrode, wherein the binder is aramid.
- An electrode sheet obtained by heat treatment after coating is provided.
- the present invention further provides a battery using the above electrode sheet, in particular, a capacitor and a battery.
- the binder of the present invention is a highly heat resistant and electrochemically stable aramid, and due to the shrinkage of the binder during the process of granulation by heat treatment, a shrinkage stress acts between the powder electrode materials, In addition, since the portion covering the surface of the powder electrode material is reduced by shrinkage, the contact area between the powder electrode materials is increased, and the conductivity in the state of the electrode sheet is significantly improved. Furthermore, since the binder of the present invention has an amide group in the molecular chain, it has good wettability with a carbonate electrolyte having a carboxyl group in the molecule, and an electrode sheet can be produced by a coating method. Therefore, it is possible to produce a thin electrode sheet, which is optimal for high-power capacitors and batteries that require a thin electrode.
- FIG. 2 is a photomicrograph (magnification: 3500) of the coating surface after heating (3500 ° C.) of the collector electrode shown in FIG.
- FIG. 4 is a photomicrograph (magnification: 3500) of the coating surface after heating (3500 ° C.) of the collector electrode shown in FIG. Detailed description of the invention
- the powder electrode material in the present invention comprises a mixture of an electrode active material, a conductive agent added as necessary, and other auxiliary agents.
- Electrode active material Electrode active material:
- the electrode active material used in the present invention is not particularly limited as long as it functions as a capacitor and / or battery electrode.
- a capacitor for example, Helmholtz was discovered in 1879.
- Carbon materials such as activated carbon, foamed carbon, carbon-nanotube, polyacene, nanogate and carbon used for electric double layer capacitors that store electricity by utilizing the electric double layer: pseudo capacity with oxidation-reduction reaction
- Metal oxides, conductive polymers, organic radicals, etc. that can also be used are listed.
- Battery electrodes can be used for one of the electrodes.
- lithium metal oxide such as lithium cobaltate, lithium chromate, lithium vanadate, lithium chromate, lithium nickelate, and lithium manganate
- natural graphite, artificial graphite, resin charcoal, carbonized natural products, petroleum coke, coal coke, pitch coke, mesocarbon microbeads, metal Lithium or the like can be used.
- the conductive agent used in the present invention is not particularly limited as long as it has a function of improving the electrical conductivity of the electrode sheet.
- carbon black such as acetylene black and ketene black is preferable.
- the aramide used in the present invention includes linear polymer compounds in which 60% or more of the amide bonds are directly bonded to the aromatic ring.
- These aramids are manufactured in a technical manner by a known interfacial polymerization method, solution polymerization method, etc. using isophthalic acid chloride and metaphenylenediamine, and can be obtained as a commercial product. However, it is not limited to this.
- polymetaphenylene isophthalamide is particularly preferably used because it has good molding processability, thermal adhesiveness, flame retardancy, heat resistance and the like.
- Aramid granulated by heat treatment is particularly preferably used because it has good molding processability, thermal adhesiveness, flame retardancy, heat resistance and the like.
- the aramid granulated by heat treatment can be obtained, for example, by preparing a slurry by mixing a powder electrode material, an aramid, and a solvent, and applying the slurry to a collector electrode and then heating.
- the aramid in the coating film is
- the amount of the aramid binder used is not particularly limited as long as it is granulated by heating, but is usually in the range of 3 to 15 wt% based on the total of the aramid and the powder electrode material. Of these, the range of 5 to 13 wt% is particularly preferable. If the amount of aramid binder exceeds the above range and becomes too large, it is generally difficult for granulation to occur, and as shown in Figs. 3 and 4, it is heated at 35 ° C for 2 hours. Later, the binder will cover the powder electrode material, and the function of the battery will be significantly reduced.
- the above heat treatment conditions are not particularly limited as long as the desired capacitor characteristics are achieved, but it is considered that the heat treatment is performed at a temperature close to the crystallization temperature of the aramid, so that the binding power of the aramid is the highest. Therefore, it is particularly suitable.
- the heat treatment is preferably carried out at a temperature of 3700C or less. From the viewpoint of the crystallization temperature, it is particularly preferable to carry out the reaction at a temperature within the range of 330 to 365 ° C.
- the timing of the heat treatment is not particularly limited as long as it is after application, but after application, it is once dried at a relatively low temperature near the boiling point of the solvent so that foaming due to bumping of the solvent does not interfere with the characteristics of the capacitor. It is preferable to perform the heat treatment after removing the solvent.
- the heating means include a method of hot pressing at a high temperature and high pressure between a pair of flat plates or between metal rolls.
- the conditions of the hot pressure can be exemplified in the range of a temperature of 2 75 to 3 65 ° C and a linear pressure of 50 to 40 O kgZcm.
- a plurality of electrode sheets can be laminated at the time of hot pressing, and the above hot pressing can be repeated a plurality of times in an arbitrary order. It is also possible to heat treatment after assembling the collector electrode, electrode and separator to form an electrode unit.
- the electrode unit is not particularly limited as long as it is an assembly of a collecting electrode, an electrode and a separator. For example, a stacked electrode / electrode / separator electrode and a collecting electrode are stacked in this order, and an electrode Z collecting electrode Z electrode Z separator.
- the unit can be assembled by stacking the Z electrode, the Z collector electrode, and the electrode Z separator in this order, repeating these stacks, or rolling up the stacked body. At that time, the members can be bonded in advance with an adhesive or the like.
- the solvent used in the present invention is not particularly limited as long as it can dissolve aramid.
- N N-dimethylacetamide (DMAC)
- NMP N-methyl-2-pyrrolidone
- the collector electrode used in the present invention is not particularly limited as long as it is made of a conductive material and is stable with respect to the electrode, the solvent, and the electrolytic solution.
- a conductive material for example, an aluminum thin plate, a platinum thin plate, a copper thin plate, etc. A metal thin plate is mentioned.
- the electrode sheet in the present invention can be produced, for example, by preparing a slurry in which a powder electrode material, a aramide binder, and a solvent are mixed, applying the slurry to a collector electrode, and then performing heat treatment. Specifically, for example, it can be produced as follows:
- the slurry is applied to one or both sides of the collecting electrode using a slurry coating device such as a doctor knife, and passed through a continuous drying furnace or dried and solidified in a stationary drying furnace, for example. Make a bowl.
- the drying temperature at that time is preferably within the range of the boiling point of the solvent ⁇ 5 ° C, but is not limited thereto.
- the sheet density and mechanical strength can be improved by, for example, hot pressing the obtained sheet at a high temperature and high pressure between a pair of flat plates or between metal rolls.
- the electrode sheet after pressing preferably satisfies the range shown in the following formula (1). 0.25 ⁇ DX (IZD—WeZDe— WcZD c— WbZDb) ⁇ 0.75 ⁇ (1)
- D is the density of the electrode sheet excluding the collector electrode
- W e is the weight fraction of the electrode active material
- c is the weight fraction of the conductive agent
- D c is the true specific gravity of the conductive agent
- W b is the weight fraction of the binder
- D b is the true specific gravity of the binder.
- Polymetaphenylene isophthalamide (true specific gravity 1.38) was dissolved in NMP to prepare a metaramide solution.
- a separator (basis weight 24.4 g / m 2 , thickness 46 m, density 0.53 g / cm 3 ) made of m-charamide and P-charamide was prepared according to the description in Examples of JP-A-2005-307360, An electrode unit was obtained by sandwiching between a pair of positive and negative electrodes.
- Example 1 A separator (basis weight 24.4 g / m 2 , thickness 46 m, density 0.53 g / cm 3 ) made of m-charamide and P-charamide was prepared according to the description in Examples of JP-A-2005-307360, An electrode unit was obtained by sandwiching between a pair of positive and negative electrodes.
- the electrode unit manufactured in Reference Example 2 was heat-treated at a temperature of 350 ° C (pressure 1 torr or less, 12 hours), then dried in a dry atmosphere and inserted into the aluminum laminate exterior. Next, seal the three sides of the exterior, and inject 1.5M TEMABF 4 / PC (a solution of triethylmethylammonium tetrafluoroborate in a propylene power-bonate) as an electrolyte, and reduce the pressure. Impregnation was performed, and the remaining one of the exterior was sealed under reduced pressure to produce a capacitor having the structure shown in Table 1 below. Comparative Example 1
- a capacitor having the configuration shown in Table 1 was fabricated in the same manner as in Example 1 except that the temperature of the heat treatment of the electrode unit fabricated in Reference Example 2 was set to 150 ° C. The heat treatment in this case was performed to dry the activated carbon electrode, and the heating temperature received by the binder after coating was highest at 170 ° C in the electrode sheet preparation process.
- Table 1 Capacitor configuration
- the resistance of the capacitor of Example 1 according to the present invention is lower than that of the capacitor of Comparative Example 1, which is a good result and it was confirmed that the capacitor functions sufficiently.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097015364A KR101381069B1 (ko) | 2006-12-22 | 2007-12-13 | 축전기 전극용 결합제 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-346660 | 2006-12-22 | ||
JP2006346660A JP5015579B2 (ja) | 2006-12-22 | 2006-12-22 | 蓄電器電極用バインダー |
Publications (1)
Publication Number | Publication Date |
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WO2008078634A1 true WO2008078634A1 (ja) | 2008-07-03 |
Family
ID=39562426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/074472 WO2008078634A1 (ja) | 2006-12-22 | 2007-12-13 | 蓄電器電極用バインダー |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5015579B2 (ja) |
KR (1) | KR101381069B1 (ja) |
CN (1) | CN101578676A (ja) |
TW (1) | TW200838015A (ja) |
WO (1) | WO2008078634A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102132443A (zh) * | 2008-10-31 | 2011-07-20 | 日立麦克赛尔株式会社 | 非水二次电池 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5670759B2 (ja) * | 2011-01-06 | 2015-02-18 | 帝人株式会社 | 芳香族ポリアミドからなる電極合剤用バインダーならびに電極シート |
KR101710231B1 (ko) | 2014-04-29 | 2017-02-27 | 황철주 | 접지 봉함기 |
CN111420853A (zh) * | 2020-03-27 | 2020-07-17 | 天目湖先进储能技术研究院有限公司 | 一种用以抑制粘结剂迁移的极片干燥方法、极片和电池 |
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JP2001345103A (ja) * | 2000-03-29 | 2001-12-14 | Toyo Tanso Kk | 二次電池用負極材及びそれを用いたリチウムイオン二次電池及び二次電池用負極材の製造方法 |
JP2003068284A (ja) * | 2001-08-27 | 2003-03-07 | Mitsubishi Cable Ind Ltd | リチウム二次電池用負極およびその製造方法、並びに、リチウム二次電池 |
JP2004348975A (ja) * | 2003-05-14 | 2004-12-09 | Tdk Corp | 電極用複合粒子及び電極用複合粒子の製造方法 |
Family Cites Families (3)
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JP3154714B2 (ja) * | 1990-08-29 | 2001-04-09 | 三菱化学株式会社 | 二次電池用電極 |
JPH10312791A (ja) * | 1997-03-13 | 1998-11-24 | Mitsui Chem Inc | 非水電解液二次電池用電極材料 |
JP2006339092A (ja) * | 2005-06-06 | 2006-12-14 | Matsushita Electric Ind Co Ltd | 非水電解液二次電池およびその負極 |
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2006
- 2006-12-22 JP JP2006346660A patent/JP5015579B2/ja not_active Expired - Fee Related
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2007
- 2007-12-13 TW TW096147719A patent/TW200838015A/zh unknown
- 2007-12-13 WO PCT/JP2007/074472 patent/WO2008078634A1/ja active Application Filing
- 2007-12-13 KR KR1020097015364A patent/KR101381069B1/ko not_active IP Right Cessation
- 2007-12-13 CN CNA2007800479777A patent/CN101578676A/zh active Pending
Patent Citations (3)
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JP2001345103A (ja) * | 2000-03-29 | 2001-12-14 | Toyo Tanso Kk | 二次電池用負極材及びそれを用いたリチウムイオン二次電池及び二次電池用負極材の製造方法 |
JP2003068284A (ja) * | 2001-08-27 | 2003-03-07 | Mitsubishi Cable Ind Ltd | リチウム二次電池用負極およびその製造方法、並びに、リチウム二次電池 |
JP2004348975A (ja) * | 2003-05-14 | 2004-12-09 | Tdk Corp | 電極用複合粒子及び電極用複合粒子の製造方法 |
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CN102132443A (zh) * | 2008-10-31 | 2011-07-20 | 日立麦克赛尔株式会社 | 非水二次电池 |
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JP2008159810A (ja) | 2008-07-10 |
TW200838015A (en) | 2008-09-16 |
CN101578676A (zh) | 2009-11-11 |
KR20090105938A (ko) | 2009-10-07 |
KR101381069B1 (ko) | 2014-04-04 |
JP5015579B2 (ja) | 2012-08-29 |
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