WO2005057597A1 - 蓄電素子および蓄電素子の製造方法 - Google Patents
蓄電素子および蓄電素子の製造方法 Download PDFInfo
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- WO2005057597A1 WO2005057597A1 PCT/JP2004/018384 JP2004018384W WO2005057597A1 WO 2005057597 A1 WO2005057597 A1 WO 2005057597A1 JP 2004018384 W JP2004018384 W JP 2004018384W WO 2005057597 A1 WO2005057597 A1 WO 2005057597A1
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- Prior art keywords
- electrode
- power storage
- metal
- storage device
- polymer electrolyte
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Classifications
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- H01G11/30—Electrodes characterised by their material
- H01G11/50—Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0407—Methods of deposition of the material by coating on an electrolyte layer
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- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
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- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/387—Tin or alloys based on tin
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- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/40—Alloys based on alkali metals
- H01M4/405—Alloys based on lithium
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- 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
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- 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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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/49115—Electric battery cell making including coating or impregnating
Definitions
- the present invention relates to a power storage element having a polarizable electrode formed on a polymer electrolyte and a method for manufacturing the power storage element.
- An electric storage element is called a capacitor or an electric storage, and is a device or a circuit element that stores electric charge between electrodes.
- Capacitors can be used in recent years, such as power supplies for backup of memories in personal computers and mobile terminals, as well as power supplies for instantaneous power outages or solar power storage systems combined with solar cells. Attention.
- Electrodes used for capacitors mainly include metal electrodes and carbon electrodes.
- the carbon electrode is an electrode using a carbon material such as activated carbon, and has a large specific surface area, and thus is suitable for large capacity storage.
- a current collector such as a metal mesh or a metal plate is required as the electrode.
- the shape of the capacitor is limited, such as a button shape, so that the degree of freedom in designing the shape of the capacitor is reduced, and a desired shape cannot be obtained depending on various uses.
- a current collector is used for each electrode that also has carbon material power, the capacitor becomes thicker by the thickness of the current collector, and the thickness cannot be reduced.
- the electrodes of the capacitor need to be a current collector, preferably metal electrodes.
- a capacitor using a metal electrode there is a thin film polymer film capacitor in which an electrode is formed on a polymer layer (for example, see Patent Document 1).
- the polymer film capacitor has a capacitance of 0.35 to 0.41 / im in an area of l cm 2 of 0.015 to 0.02 ⁇ F, and a thickness of 0.8 to 1.
- the capacitance force of 8 ⁇ m is 25-40 ⁇ F, and it is necessary to further improve the capacitance when the capacitance is not sufficient.
- Patent document 1 JP-A-11-8153 Disclosure of the invention
- An object of the present invention is to provide a high-capacity energy storage device in which the electrode is a metal electrode, has a high specific capacity, a high energy density, and a high specific capacity.
- a power storage device including a polymer electrolyte and a polarizable electrode, wherein the polarizable electrode has an interface with the polymer electrolyte, Is a metal electrode, and the negative electrode of the polarizable electrode has a lithium alloy with a metal component contained in the negative electrode at an interface with the polymer electrolyte, and the lithium alloy has a reversible electric property.
- the polarizable electrode is a metal electrode and can be used as a storage element having a large specific capacity. And found the present invention.
- the present invention relates to a method for manufacturing a power storage element, comprising a structure forming step and a structure for obtaining an electrode-electrolyte structure having a polarizable electrode formed on a polymer electrolyte by an electroless plating method.
- a voltage is applied to the polarizable electrode in a state where the electrode-electrolyte structure obtained in the forming step contains a solution containing lithium ions, and the layer containing the metal component and lithium of the polarizable electrode is separated into the layers.
- a layer forming step of forming a negative electrode of a polar electrode By using the manufacturing method, a capacitor in which the metal electrode serving as the negative electrode of the polarizable electrode has a lithium alloy with a metal component constituting the metal electrode at the interface with the polymer electrolyte can be easily obtained. be able to.
- the energy storage device of the present invention includes a metal electrode as a polarizable electrode, and further includes a lithium alloy at an interface between the electrode of the negative electrode and the polymer electrolyte, so that the interface between the metal electrode and the polymer electrolyte is provided.
- An electric double layer is formed, and a redox reaction of the lithium alloy occurs. Therefore, the specific capacity of the power storage element has a capacitance value that is the sum of the electric double layer capacitance and the pseudo capacitance due to the Reddots reaction, and is therefore larger than the capacitance values of ordinary electric double layer capacitors and redox capacitors. Les ,.
- the layer capable of releasing lithium ions by a Reddots reaction is provided at an interface between the metal electrode serving as a negative electrode of the polarizable electrode and the polymer electrolyte. Since it can be easily formed, the specific capacitance is larger than that of a normal electric double layer capacitor, and a power storage element can be easily obtained.
- FIG. 1 is an SEM photograph of a cross section in a thickness direction of an electrode-electrolyte structure as an embodiment of the electrode electrolyte structure used in the electric storage device of the present invention.
- FIG. 2 is an SEM photograph in which a cross section in a thickness direction of the electrode-electrolyte structure is observed as an embodiment of the electrode electrolyte structure used in the electric storage device of the present invention.
- the present invention is a power storage device including a polymer electrolyte and a polarizable electrode, wherein the polarizable electrode has an interface with the polymer electrolyte, the polarizable electrode is a metal electrode, A negative electrode of the electrode has a lithium alloy with a metal component contained in the negative electrode at an interface with the polymer electrolyte, and the lithium alloy releases lithium ions by a reversible electrochemical redox reaction.
- An energy storage element characterized by being an alloy that can be used.
- the electricity storage element of the present invention has an interface between the polarizable electrode and the polymer electrolyte. Therefore, the power storage element can form an electric double layer by ionic species contained in the polymer electrolyte during power storage.
- the electric storage device of the present invention has a lithium alloy with a metal component contained in the negative electrode of the polarizable electrode at an interface between the polarizable electrode serving as a negative electrode and a polymer electrolyte.
- the lithium alloy is an alloy capable of reversibly releasing lithium ions by an electrochemical redox reaction.
- the lithium alloy emits lithium ions at the time of discharge, and can cause an oxidation-reduction reaction. Therefore, the electric storage element has not only the electric double layer capacity but also a capacity generated by an oxidation-reduction reaction, in addition to the electric double layer capacity. That is, the electric storage element of the present invention is more effective than an electric double layer capacitor having a capacity only by an electric double layer or a redox capacitor having a capacity only by an oxidation-reduction reaction. Has a large capacity.
- the lithium alloy is an alloy capable of releasing lithium ions during discharging, and may be an alloy formed of lithium ions and a metal component contained in the negative electrode during charging.
- the metal that forms the lithium alloy together with lithium is not particularly limited, but is easily available and easy to form a polarizable electrode, so that gold (Au), lead (Pb), Tin (Sn), Zinc (Zn), Indium (In), Cadmium (Cd), Bismuth (Bi), Titanium (Ti), Antimony (Sb), Copper (Cu), Silver (Ag), Iron (Fe) And a metal selected from the group consisting of nickel and nickel (Ni).
- the metal component of the negative electrode of the power storage device of the present invention includes, as the metal component, at least one metal selected from the group consisting of gold, lead, tin, and zinc.
- the metal forming the lithium alloy together with lithium is also a metal contained in the polarizable electrode, the lithium alloy can be used as a negative electrode and a polymer electrolyte even when charging the storage element after repeated charging and discharging. Can easily be formed at the interface with Therefore, even if charge and discharge are repeatedly performed, a decrease in the capacity of the power storage element hardly occurs.
- the power storage element of the present invention includes a polarizable electrode.
- the negative electrode of the polarizable electrode has an alloy of metal and lithium contained in the negative electrode at the interface between the negative electrode and the polymer electrolyte.
- the metal forming the lithium alloy together with lithium may be one kind or two or more kinds as long as the metal can form an alloy with lithium.
- the metal component contained in the negative electrode can be formed of only a metal that forms the lithium alloy together with lithium, because a larger amount of the lithium alloy can be formed at the interface between the negative electrode and the polymer electrolyte. Is preferred. Since the negative electrode has a wide interface between the negative electrode and the polymer electrolyte, a larger amount of the lithium alloy can be formed. Therefore, the interface between the negative electrode and the polymer electrolyte is formed in an uneven shape. It is preferable that a protrusion in contact with the polymer electrolyte and constituting an electrode component of the negative electrode is provided in a boundary region with the polymer electrolyte at a cross section in the thickness direction of the power storage element, which is preferable.
- the protruding portion may have a narrowed portion having a fractal shape, a peninsula shape, or an island-shaped neck portion, even if the contour of the protruding portion has a substantially periodic curve shape, a Z shape, or an irregular shape.
- a substantially periodic curve shape a Z shape, or an irregular shape.
- the island may be substantially circular, substantially elliptical or polygonal.
- the boundary region refers to a position closest to the center of the interface between the negative electrode and the polymer electrolyte in the thickness direction of the power storage element and a position closest to the center of the interface in the thickness direction of the power storage element.
- FIGS. 1 and 2 show the thickness of the electrode-electrolyte structure obtained by depositing gold on a cross section of the electrode-electrolyte structure as a sample under a high vacuum and photographing with a scanning electron microscope at a magnification of 300 times. This is an SEM photograph of a cross section in the vertical direction.
- the portions that appear white are made of metal.
- the negative electrode is preferably a porous metal electrode because a larger amount of lithium alloy can be formed at the interface between the negative electrode and the polymer electrolyte than at the interface.
- the porous metal electrode is made of only a metal which forms a lithium alloy together with lithium. By forming more lithium alloy at the interface between the negative electrode and the polymer electrolyte, the electric storage element of the present invention can have a large specific capacity.
- the porous metal electrode can be obtained, for example, by subjecting a polymer electrolyte to an adsorption reduction method in an electroless plating method for a polymer electrolyte.
- the power storage element includes a positive electrode having an interface with the polymer electrolyte.
- the positive electrode is a metal electrode capable of forming an electric double layer at an interface with the polymer electrolyte. Therefore, the electric storage element of the present invention can form an electric double layer on the positive electrode.
- charging and discharging are performed by a reaction in which lithium forms an alloy mainly in the negative electrode and an electric double layer is formed in the positive electrode.
- the power storage element may contain a substance that absorbs lithium ions even in the positive electrode, but is preferably a metal electrode that does not contain a substance that absorbs lithium ions because the positive electrode is easily manufactured. Note that the electric storage element of the present invention can form an electric double layer on the negative electrode.
- the positive electrode may be a metal electrode capable of forming an electric double layer. Therefore, the material is preferably the same as the material of the negative electrode. That is, the positive electrode is a metal electrode in which the metal component of the electrode contains one or more metals selected from the group consisting of gold, lead, tin, and zinc, and the negative electrode and the positive electrode have the same metal component composition. Preferably, there is. Further, since the gas does not enter between the positive electrode and the interface with the polymer electrolyte, the positive electrode is preferably an electrode bonded to the polymer electrolyte. It is preferable that the negative electrode is also an electrode similarly joined to the polymer electrolyte.
- the polymer electrolyte contained in the electricity storage device of the present invention is not particularly limited, but is not particularly limited as long as it is mainly an electrolyte formed of a polymer.
- An ion-exchange resin is preferred for adsorbing on the surface.
- the ion exchange resin is contained as a resin component of the polymer electrolyte, even when the polymer electrolyte is in a swollen state, the polymer electrolyte functions as an electrolyte of a power storage element without containing a large amount of solvent molecules. Preferred, because you can get a larger capacitance than.
- the ion exchange resin As the ion exchange resin, a known resin which is not particularly limited can be used, and a resin in which a hydrophilic functional group such as a sulfonic acid group or a carboxyl group is introduced into polyethylene, polystyrene, a fluororesin, or the like is used. be able to.
- Specific examples of the ion exchange resin include a perfluorocarboxylic acid resin and a perfluorosulfonic acid resin.
- the ion exchange resin include Nafion resin (perfluorosulfonic acid resin, manufactured by DuPont), and Flemion (perfluent). Carboxylic acid resin or perfluorosulfonic acid resin, manufactured by Asahi Glass Co., Ltd.).
- the above-mentioned ion exchange resin is preferably a cation exchange resin because the degree of freedom in selecting the ionic species of the electrolyte salt is large and the range of combinations according to applications and characteristics can be widened.
- the polymer electrolyte a polymer electrolyte molded article having a shape suitable for a shape as a power storage element obtained by an electroless plating method can be used.
- a desired shape such as a columnar shape or a tubular shape can be used.
- the electricity storage device of the present invention is in a state where the polymer electrolyte layer is swollen by a solvent containing ions.
- the solvent may be a non-aqueous solvent or a good aqueous solvent.
- the above-mentioned polymer electrolyte may contain some solvent molecules of the electrolytic solution.
- the ions can form a lithium alloy at the negative electrode.
- Lithium ions can be suitably used.
- the concentration of lithium ions contained in the polymer electrolyte is not particularly limited, but is preferably 0.1 to 3.3 mol / L.
- the anion contained in the polymer electrolyte of the electricity storage device of the present invention is not particularly limited, and the anion contained in a known electrolyte can be used.
- One or more anions selected from the group consisting of AsF— and SbF— can be suitably used.
- a body room temperature molten salt
- the above-mentioned electric storage element is used when the lithium alloy is formed on the negative electrode, and the ionic species contained in the electrode-electrolyte structure when the lithium alloy is formed on the negative electrode.
- the solvent contained in the electrode-electrolyte structure may be different from the solvent used as the power storage element, but the polymer electrolyte of the power storage element preferably contains lithium ions.
- a solvent contained in the polymer electrolyte of the electric storage device of the present invention water can be used.
- a noble metal as the metal component of the polarizable electrode in order to prevent metal ionization during the charging and discharging of the capacitor.
- an aprotic polar organic solvent can be used as the solvent.
- a non-aqueous polar organic solvent having a high dielectric constant and decomposition voltage is used, electrolysis of water is unlikely to occur and becomes electrochemically stable, resulting in a higher withstand voltage and lower energy density. growing.
- the polar organic solvent is preferably an aprotic polar solvent in order to prevent the decomposition of the polar organic solvent.
- the polar organic solvent is specifically Ropylene carbonate, N-methinolepyrrolidone, dimethyl sulfoxide, acetonitrile, N, N-dimethylformamide, N-methylformamide, tetrahydrofuran, hexamethylphosphoric acid triamide, ⁇ -butyrolataton, 1,2-dimethoxyethane, ⁇ -methylacetate Amide, sulfolane ethylene carbonate, glutaronitrile, adiponitrile, nitromethane, nitroethane
- the storage element may be of a type in which the solvent contained in the electrode-electrolyte structure when the lithium alloy is formed on the negative electrode is different from the solvent used as the storage element.
- the power storage device of the present invention uses metal electrodes for the positive electrode and the negative electrode.
- the electric double layer capacity formed by the electric double layer formed at the electrode interface and the pseudo capacity accompanying the oxidation-reduction reaction are different.
- Has a specific capacity as the sum of Therefore, the capacitor can have a larger capacity than a capacitor using a conventional metal electrode.
- the power storage element may have a specific capacity of 20 F / cm 3 or more.
- the specific capacity is a value measured by a constant current discharge method, and is a standard of the Japan Electronics Manufacturers Association, issued by the Japan Electronics Machinery Association, standard number EIAJ RC-2377 (established in April 2000, This is a value measured in accordance with the test method for multilayer capacitors, 3.3.1 Constant current discharge method).
- the present invention relates to a method for manufacturing a power storage element, comprising a structure forming step of obtaining an electrode-electrolyte structure in which a polarizable electrode is formed on a polymer electrolyte by an electroless plating method, and a structure forming step.
- a voltage is applied to the polarizable electrode in a state where the obtained electrode-electrolyte structure contains a solution containing lithium ions, and a layer containing a metal component of the polarizable electrode and lithium is formed on the polarizable electrode.
- a step of forming a layer to be formed on the negative electrode comprising a structure forming step of obtaining an electrode-electrolyte structure in which a polarizable electrode is formed on a polymer electrolyte by an electroless plating method, and a structure forming step.
- a layer containing lithium and a metal component contained in the negative electrode is formed at the interface between the negative electrode, which is a metal electrode, and the polymer electrolyte.
- a power storage element having the same can be formed.
- the layer contains an alloy capable of releasing lithium ions by a reversible electrochemical redox reaction. Since the power storage element has both the electric double layer capacity and the pseudo capacity due to the oxidation-reduction reaction of the lithium alloy, the power storage element can have a larger specific capacity than a normal capacitor.
- an electrode-electrolyte structure having a polymer electrolyte and a polarizable electrode is formed by an electroless plating method.
- the electrode-electrolyte structure includes a polarizable electrode that is a metal electrode and a polymer electrolyte, and the polarized electrode has an interface with the polymer electrolyte.
- a pair of polarizable electrodes can be easily formed on the polymer electrolyte by using the electroless plating method.
- the electroless plating method is not particularly limited, but an adsorbing step of adsorbing the metal complex on the ion-exchange resin and a reducing agent solution contacting the ion-exchange resin on which the metal complex has been adsorbed in the adsorbing step. And a reduction step of precipitating and depositing a metal.
- This electroless plating method is a method called an adsorption reduction method. Since the obtained electrode-electrolyte structure is an electrode-electrolyte junction, the polarizable electrode is hard to separate from the polymer electrolyte.
- An interface between the electrode and the polymer electrolyte is widened, and an electrode-electrolyte structure having good mechanical strength can be easily obtained. Further, in the adsorption reduction method, since the obtained polarizable electrode is a porous metal electrode, the interface between the polarizable electrode and the polymer electrolyte can be further widened. Furthermore, in the adsorption reduction method, the interface between the obtained polarizable electrode and the polymer electrolyte can be made uneven, and as described in the above (electric storage element) section, in the thickness direction of the electric storage element.
- the protruding portion may include a fractal-shaped, peninsular-shaped, or island-shaped narrow portion having a neck-shaped portion, which may have a contour line of a substantially periodic curve and / or an irregular shape. Shape, tree shape, mushroom shape, lalla shape, polyp shape, Z or coral shape.
- the island may be substantially circular, substantially elliptical, or polygonal.
- the boundary region refers to a negative electrode and a cross section in a thickness direction of the power storage element. A range between a position closest to the center in the thickness direction of the energy storage element at the interface with the polymer electrolyte and a position closest to the negative electrode surface of the interface, including the interface between the negative electrode and the polymer electrolyte. Range.
- a good solvent or a mixed solvent containing a good solvent is permeated into the polymer electrolyte to swell.
- a swelling step is performed in which the polymer electrolyte has a predetermined shape and the thickness of the polymer electrolyte in a swollen state is swollen to 120% or more of the thickness of the polymer electrolyte in a dry state.
- a method of forming a metal layer by performing an adsorption step of adsorbing the metal complex on the polymer electrolyte and a reduction step of bringing a reducing agent solution into contact with the polymer electrolyte on which the metal complex has been adsorbed is performed inside the polymer electrolyte.
- the resin component that forms the polymer electrolyte has a functional group by swelling such that the thickness of the polymer electrolyte in a swollen state is 120% or more of the thickness of the polymer electrolyte in a dried state.
- the degree of freedom of the segment movement about the side chain is increased. Due to this increase in the degree of freedom, in the adsorption step of the electroless plating method, the metal complex is more easily adsorbed from the surface of the polymer electrolyte to the inside, and also in the reduction step, the reducing agent in the reducing agent solution is used. It is thought that the metal complex and the reducing agent easily became Brownian inside the polymer electrolyte because of the easier adsorption to the inside from the surface of the polymer electrolyte.
- the good solvent means a solvent that can swell the polymer well, and differs depending on the type of the polymer constituting the polymer electrolyte.
- the good solvent may be a mixture of a plurality of good solvents.
- As the good solvent for example, methanol, dimethylsulfoxide, N-methylpyrrolidone, dimethylformamide, ethylene glycol, diethylene glycol, glycerin, tetrapropylhydroxide and the like can be used.
- the polymer electrolyte is a perfluorocarboxylic acid resin or a perfluorosulfonic acid resin
- methanol, ethanol, propanol, hexafluoro-2-propanol, diethylene glycol, and glycerin can be used.
- the swelling step when the polyelectrolyte is a perfluorocarboxylic acid resin or a perfluorosulfonate resin, methanol or a solvent containing methanol is permeated so that the swelling is prevented.
- the thickness of the polymer electrolyte in a swollen state is swollen to 120% or more of the thickness of the polymer electrolyte in a dried state. This is because methanoles are easy to swell and easy to handle, so that workability is good.
- the metal complex enters the inside of the polymer electrolyte as described above, and becomes a particulate metal by the reduction step.
- a metal electrode is formed on the electrolyte.
- the interface between the metal electrode and the electrolyte layer is not always clear, and the metal component is rich near the outside of the polymer electrolyte.
- the electrolyte component becomes gradually richer toward the center of the electrolyte.
- the metal electrode in the electricity storage device of the present invention is that the metal present on the electrolyte need not be present as a layer on the electrolyte, but at least the metal present near the outside of the electrolyte is connected to each other. It suffices to form a portion with good electrical conductivity that can be used as an electrode. Therefore, the storage element of the present invention has a structure in which the metal electrode layer and the electrolyte layer do not have a clear interface visually, and the electrolyte portion having a resistance value as the electrolyte layer contains a metal as a main component and is used as an electrode. A structure that is sandwiched from both sides by a part with good electrical conductivity is possible.
- the adsorption reduction method when used as the electroless plating method, the adsorption is performed in order to bring the shape of the interface between the polarizable electrode and the polymer electrolyte into a desired state.
- the step and the reduction step can be repeatedly performed.
- the surface of the polymer electrolyte is roughened by sandblasting or the like, the roughened polymer electrolyte is subjected to a washing process, the washed polymer electrolyte is subjected to a swelling process, and then the first adsorption process and reduction After performing the steps, the set of the washing step, the adsorption step, and the swelling step may be repeated a plurality of times.
- the adsorption step is not particularly limited as long as the metal complex is adsorbed on the polymer electrolyte, and may be an adsorption step performed by a known adsorption reduction method in an electroless plating method. it can.
- the metal complex used in the adsorption step is not particularly limited as long as it is a metal species that can be used as an electrode, but the metal complex is easily available and easily alloyed with lithium.
- the metal complex includes gold (Au), lead (Pb), tin (Sn), zinc (Zn), indium (In), force dome (Cd), bismuth (Bi), titanium (Ti), antimony ( Sb), copper (Cu), silver (Ag), iron (Fe) or nickel (Ni) complexes can also easily reduce the preferred central metal. Complexes are more preferred.
- the reduction step is not particularly limited as long as the metal complex adsorbed on the polymer electrolyte can be reduced, and a known reduction step performed by an electroless plating method can be performed.
- a known adsorption reduction method in the electroless plating method can be used.
- the electrode-electrolyte structure obtained by the electroless plating is subjected to a voltage to the polarizable electrode in the layer forming step.
- a layer containing the metal component of the polarizable electrode and lithium is formed at the interface between the polarizable electrode and the polymer electrolyte in the negative electrode. Since the layer contains an alloy of a metal component of the negative electrode and lithium, lithium can be released by electrochemical redox, and the negative electrode has the same function as the negative electrode active material in the lithium secondary battery. I can do it.
- the energy storage element releases lithium ions when the lithium alloy is discharged, and at the negative electrode interface when charged. Since the lithium alloy is formed, a pseudo capacitance can be provided in addition to the electric double layer capacitance.
- the layer is formed as the outermost layer of the negative electrode. However, when the negative electrode is a porous electrode, it may appear as if it is formed inside the negative electrode.
- the electrode-electrolyte structure is immersed in a lithium solution of a different concentration or a different solvent type from the lithium solution used in the layer forming step, The solution contained in the electrode-electrolyte structure may be replaced.
- the storage element obtained by the above-described method for manufacturing a storage element has a pseudo-capacity in addition to the electric double layer capacity because the negative electrode has a layer capable of releasing lithium ions by an electrochemical oxidation-reduction reaction. It can have a larger specific capacity than that of the conventional electric double layer power storage element. Therefore, the storage element has a large specific capacity. High energy density.
- the energy storage device of the present invention is obtained by laminating, folding, or winding an energy storage device including a polymer electrolyte and two polarizable electrodes sandwiching the polymer electrolyte, and further forming a coin-type laminate type.
- This can be assembled in a container such as a can or a laminate pack, and can be assembled as a power storage component by a sealed can for a can or a heat seal for a laminate pack. Further, in the above method, before the container is sealed or heat-sealed, the container can be filled with a specific electrolyte solution to obtain a power storage component.
- a power storage component as a chip component By storing the power storage element of the present invention in a bottomed cylindrical outer case and sealing the open end of the outer case with a sealing body made of an elastic member, a power storage component as a chip component can be obtained.
- the case containing the storage element of the present invention may be filled with an insulating material having a small coefficient of linear expansion.
- the energy storage device of the present invention is a coin-type device sealed with a metal lid via a gasket, and an element formed by winding a separator between a positive electrode and a negative electrode via a separator is accommodated in a metal case together with an electrolytic solution and sealed.
- Any of the following types can be used, such as a wound type, or a laminated type in which a laminated body of an element formed by laminating a positive electrode and a negative electrode with a separator interposed therebetween is incorporated.
- power storage elements may be stacked such that anodes and cathodes overlap.
- the power storage element of the present invention can be a large-sized flat-plate laminated solid electrolytic capacitor.
- the metal electrode may be U-shaped or tubular.
- Tubular metal electrodes can be circular, triangular, square, rectangular, or polygonal.
- the storage element of the present invention may have any shape, and if the storage element has a corner portion, damage due to thermal stress, mechanical stress, and distortion due to a difference in thermal expansion with the resin exterior body.
- a curved surface having a predetermined curvature can be formed at the corner in order to prevent a leakage current defect.
- the power storage device of the present invention can be a power storage component of an electrode lamination type or an elliptical cross section.
- a vinylon nonwoven fabric mainly composed of vinylon fibers may be used as a separator, and the electric storage element wound around the separator may be used to form a winding type electric storage component.
- the wound An insulating protective layer may be provided on the outer peripheral surface of the storage element.
- the linear body can be used as a lead because the linear body is continuously interposed in a meandering state in the winding length direction of the power storage element.
- the length of the tape for winding the power storage element may be shorter than the outer circumference of the capacitor element.
- the power storage device of the present invention may be configured in an array type by arranging a plurality of them as one component and packaging them integrally. Further, in the electric storage element, an electrode having a grid pattern is formed on a single sheet-like solid electrolyte to obtain an electric storage element for each grid, and the surface of each cathode layer and the cathode lead frame are connected by a wire bonder. After joining a metal foil piece to at least a part of the surface of each cathode layer using a wire bonder, a surface of the metal foil piece and the cathode lead frame are connected with a wire bonder. It may be used and joined with a metal wire.
- the lower bottom portion and the upper lid portion of the metal container are joined so as to be hermetically sealed by an insulating ring packing, and the power storage element can be put in the metal container.
- the sealing member has a first layer made of a material that does not or hardly permeates the hydrogen gas disposed on the power storage element side, and has an elasticity disposed on the outer surface side of the electrolytic capacitor, and has a hydrogen gas higher than the first layer. It is also acceptable to form a sealing member having a two-layer structure with a second layer made of a material that easily transmits light.
- a pressing groove may be formed on the outer peripheral surface of the case so as to sandwich the first layer of the sealing member from above and below, and the opening may be closed.
- the first case accommodates the power storage element in the second case, seals the opening of the second case with an elastic member such as rubber, and the lead terminal of the power storage element penetrates the elastic sealing member. It may be configured to be drawn out to the outside.
- At least two or more power storage devices each including a solid electrolyte and two metal electrodes formed with the solid electrolyte interposed therebetween are laminated to serve as an anode of the power storage device.
- the laminate of the power storage element is insulated so that a part of the cathode terminal connected to the anode layer connected to the electrode layer and the cathode layer connected to the electrode layer serving as the cathode via a conductive adhesive is exposed on the outer surface. It is good also as composition covered with exterior resin.
- the exterior resin can be used as an exterior case by thermosetting a thermosetting resin such as an epoxy resin, for example.
- the lead frame outside the exterior resin may be bent along the exterior resin to be used as external leads to form a laminated power storage component.
- a surface opposite to the anode lead-out surface on the anode lead-out line side may be ground.
- the exterior is filled with a resin, a pyramidal or conical exterior resin part is formed in a cathode lead-out part by a mold, and the exterior resin part is broken and removed.
- a configuration in which the electrode of the power storage element is exposed may be used.
- the exterior resin As a method for forming the exterior resin, generally, it can be formed by dip molding (lead wire type) or molding (chip type) using an epoxy-based thermosetting resin.
- the protruding portion may be filled with a thermoplastic resin.
- an insulating resin layer can be provided on the surface of the thin portion of the solid electrolyte layer of the power storage device of the present invention.
- an electrode terminal can be connected above the metal electrode.
- a method of connecting the electrode terminal to the metal electrode a method of connecting the electrodes so as to be able to conduct electricity by using a conductive adhesive containing carbon paste and Z or silver paste can be typically cited.
- the metal layer and the electrode terminals may be connected via a carbon paste, a silver paste, or a metal member.
- a coating layer is provided on the surface of the metal electrode, an electrochemical oxide film layer is provided on the electrode terminal (electrode tab portion), or a predetermined ceramic or insulating resin layer is provided.
- the electrode terminals made of metal such as aluminum, It is possible to control the potential difference between the terminal z electrode and the electrochemical reaction caused by the potential difference current. Further, by treating the electrode terminal with a mixture of a specific organic compound such as polypyrrole or styrene sulfonic acid and a solvent, the leakage current can be reduced.
- a metal foil such as copper may be attached to form a current collecting portion, and a lead may be connected to the current collecting portion.
- the electrode terminal has a repeated bending strength.
- the electrode terminal may be wire-shaped or flat.
- the oxide film layer reduces impurities (defects in the film) in the oxide film in order to prevent leakage current. For applications requiring mechanical strength such as terminal strength that can withstand device mounting, nickel-based metals (
- the electrode terminal may be formed in a substantially V block shape having a V-shaped groove for the anode terminal so as to be capable of engaging with the anode bar in a direction perpendicular to the axis thereof.
- a tab terminal for a power storage element including a flat portion for attaching the power storage element, a round bar portion following the flat portion, and a lead wire fixed to the round bar portion via a welded portion is used. A little monster.
- a metal foil may be further provided on the metal electrode to provide an extraction electrode portion.
- the extraction electrode section may be bundled to form a multilayer section, and the multilayer section may be connected to the lead section. Also, the surface of the metal foil whose surface has been roughened by the etching treatment can be adhered to the metal surface.
- an electrode lead pin may be formed at one end of the metal electrode.
- the planted end of the metal electrode can be formed to have a curved surface or a connecting surface that is raised in a roof shape.
- the electrode lead pin implanted end is raised into a roof shape selected from a pyramid shape, a conical shape, a dome shape, a mortar shape, a gable shape, and a ridge shape. Dobin can be planted.
- the creep-up preventing plate is fixed to the electrode lead pin so that the projecting portion of the creep-up preventing plate comes into contact with the surface of the storage element. Alternatively, it may be passed through the electrode lead wire.
- One end of the L-shaped leg of the anode terminal is further bent toward the outside of the L-shape to form an anode lead. It can also be welded to the dobin to make the inner surface of the L-shaped leg of the anode terminal adhere to the exterior resin layer.
- an external anode terminal is welded to the electrode terminal or a lead connected to the multilayer portion, and an exterior is formed by a transfer molding method using an epoxy resin. Thereafter, the portions of the positive and negative external terminals protruding from the exterior resin are bent and shaped along the exterior resin to form a chip-type power storage component.
- the cathode lead-out surface of the exterior resin layer in which a part of the cathode electrode terminal is exposed to the outside has a surface conductor layer formed thereon, and then is subjected to a voltage application process (aging process) at a high temperature and a high temperature atmosphere. One or both of the heat treatments may be performed, and then the surface conductor layer may be removed.
- an external electrode made of a metal layer directly formed on the surface of the exterior resin covering the power storage device, and the external electrode and the anode electrode and the cathode electrode of the power storage device are connected to each other.
- External electrodes that are electrically connected may be formed.
- the external electrode may be formed by providing a base metal layer including an electroless plating metal layer on an external electrode forming portion including an exposed portion of an anode lead wire and / or a cathode lead layer in the exterior resin. Good les.
- the connection portion may be provided with an electroless plating.
- the external positive terminal is formed by welding an external anode lead frame to an anode lead implanted on an anode, molding the anode lead lead-out surface including the welding point, and forming an insulating member. It is okay to cut the external cathode lead frame derived from the insulating member and bend it along the insulating member to form an external anode terminal.
- a cathode terminal plate having a U-shaped cross section is fitted to the bottom surface and side surfaces of the cathode extraction layer, and a resin outer package is formed on the peripheral surface of the electric storage element excluding the cathode terminal plate, and the anode is formed.
- a terminal plate may be provided on the resin outer package so that the terminal plate faces the cathode terminal plate on the side where the anode lead is drawn out, and a cathode terminal and an anode terminal may be provided.
- a release material is applied to the anode lead, a release agent is applied to the exposed surface of the cathode terminal plate, and then the electricity storage element is immersed in a resin solution. , Pull it up, dry the resin solution, and apply it to the top surface including the side and step of the storage element. Then, an anode terminal plate having a pair of flanges on opposite side edges is attached to the upper surface side of the power storage element so that the flanges are engaged with the steps, and then the anode terminal plate is formed.
- the flange may have a U-shaped cross section.
- an anode-side step portion and a cathode-side step portion having a predetermined depth on the bottom surface of the power storage component were formed on the anode side and the cathode side, respectively, and formed in an L shape.
- a release material is applied to the cathode terminal plate, the power storage element is immersed in a resin solution, pulled up, and the resin solution is dried.
- a resin sheathing body is formed on the peripheral surface including the anode-side step portion of the power storage element, and an anode terminal plate bent in an L-shape over the fire is attached from the anode-side side surface to the anode-side step portion.
- the power storage component may be obtained by providing a slave plate.
- an insulating resin impregnated portion in which an anode is impregnated with an insulating resin is formed near the end face of the anode body on the side of the anode external electrode layer, and the anode and the outside of the anode are formed in the formation region of the insulating resin impregnated portion.
- a chip-shaped power storage component may be configured so that the electrode layer is electrically connected to the electrode layer.
- an anode lead portion is provided integrally with an electrode of the power storage device, and an extended portion of a portion where a masking resist film is applied as a bracket lead portion is provided. It is also possible to provide a bent portion and a connection portion, and further connect a separate comb terminal to the connection portion provided with the cathode conductor layer and the anode lead portion.
- the anode lead wire used for the power storage element of the present invention or the power storage element may be an anode lead wire in which a part of the twill wire portion on the drawing surface side is formed in an R shape.
- a moisture-proof coating material may be applied to the surface of the exterior resin.
- a liquid-repellent resin such as a water-repellent resin may be applied to such an extent that the wetness of the solid electrolyte and the electrode is not hindered.
- a protective layer made of an insulating material or the like may be formed at the base of the lead to prevent a short circuit phenomenon or corrosion.
- a configuration is provided in which a cathode layer is provided on one side surface of the exterior member and an anode layer is provided on the other side surface. I can do it.
- a corner portion of the metal electrode can be sufficiently covered with a conductive polymer layer to prevent short circuit.
- a carbon layer may be further formed on the metal electrode of the power storage element, and a silver paste may be applied on the carbon layer to form a multi-layered electrode layer.
- the power storage component may further include a current collector plate.
- the current collector plate may be formed of conductive rubber such as platinum or conductive butyl rubber, or may be formed by thermal spraying of a metal such as aluminum, nickel or the like. It may be attached.
- At least one of the surfaces of the electrode has at least one recess, and the recess does not reach at least another electrode. It may be provided as follows.
- the power storage element is housed in a case made of metal such as aluminum or a case made of synthetic resin, and has a sealed structure.
- a power storage element is housed in a bottomed cylindrical outer case made of aluminum or the like, and a resin having a hygroscopic property at the time of curing is filled between the outer case and the power storage element, and a resin is formed on at least the outer peripheral surface of the power storage element.
- a fat layer can also be formed.
- the electricity storage element uses a non-aqueous organic solvent for the electrolyte, the amount of residual air is preferably less than 5% in the closed structure.
- a thin portion is provided in the main part of the metal case so that the insulating sleeve oozes out and captures ions in the electrolyte when the electrolyte oozes out due to the opening in the thin portion, and the electric storage element is collected.
- the metal case may be covered with an insulating sleeve and filled with an electrolytic solution.
- an oxide film can be formed also on the lead.
- a water-repellent resin or the like at the joint portion of the lead, it is possible to prevent the solid electrolyte from adhering to the lead.
- Epoxy resin or the like is formed at the base of the joined lead to reinforce the base of the lead so that it is not subject to stress, suppress the occurrence of defects in the oxide film, and further reduce leakage current defects. .
- the power storage component may have a known structure, and may be provided with an insulating gasket as appropriate. Further, after sealing, known aging is performed by applying a predetermined voltage at a predetermined temperature. be able to.
- the power storage component may include a plurality of positive terminal groups formed by bending a front end portion of a comb-shaped aluminum lead frame.
- the electric storage device of the present invention is obtained by cutting an electric storage element sheet obtained by forming electrodes in a grid on a solid electrolyte to obtain an electric storage element by cutting each cell, and forming an electric storage element.
- the electrode of the storage element thus obtained may be joined to the electrode lead terminal.
- the energy storage device of the present invention may contain a surfactant in a solution contained in the solid electrolyte in order to improve wettability and impregnation.
- the power storage element of the present invention When the power storage element of the present invention is housed inside an insulating container, mechanical vibrations and shocks transmitted to the power storage element are greatly attenuated, so that the power storage element or the power storage element and the insulation container are interposed.
- the gap may be filled with a cushion material typified by a gel-like insulator and an elastic body.
- the storage element of the present invention can be of a known size, for example, 7.3 mm X 4.3 mm X 2. Omm.
- the power storage element has a vertical dimension of usually 10 mm or more, preferably 20 mm or more, and a force S of 25 to 50 mm, and similarly, a horizontal dimension is usually 10 mm or more, preferably 20 mm or more, 25-50mm.
- the storage element of the present invention has, for example, a case size of 10 mm ⁇ X 16 mm L, ⁇ 8 X 5 L, A cylindrical power storage component such as X7L, 5X2.8L, or 5 (> X3L) can also be used.
- the temperature of the aqueous solution was set to 60 to 80 ° C, and the dichlorophenanthroline gold complex was reduced for 6 hours while gradually adding sodium sulfite.
- (3) washing step the membrane-shaped polymer electrolyte having a gold electrode formed on the surface was taken out and washed with water at 70 ° C. for 1 hour.
- the electrode-electrolyte structure was vacuum dried for 120 minutes. 1. Omol of lithium (Li (CFSO) N) bis (trifluoromethyl) sulfonilimide in the dried electrode-electrolyte structure
- Example 1 propylene carbonate solution for 12 hours.
- a voltage was applied to each of the polarizable electrodes for 12 hours so that the negative electrode voltage became 5.0 V to a pair of polarizable electrodes of the electrode-electrolyte structure containing the propylene carbonate solution, and the voltage was applied in the same manner as in Example 1.
- a storage element was obtained. In the obtained storage element, the negative electrode turns black, and the Le, with an alloy of lithium and gold. Further, the ion species contained in the electric storage device of Example 1 were (CF SO) N— and Li +.
- the electrode comprising an aqueous HNO solution-a pair of polarizable electrodes of an electrolyte structure
- the power storage element of Comparative Example 1 is an electric double layer capacitor.
- the electrode-electrolyte structure obtained by the above production example was converted to (C H) 0.5 mol / L of NBF.
- the ion species contained in the electric storage element of Comparative Example 2 were (CH) N_ and BF +.
- the storage element of Comparative Example 2 is an electric double layer capacitor
- Table 1 shows the measured values of Example 1 and Comparative Examples 1 and 2 obtained by the constant current discharge method with two electrodes.
- the actual measured value of the specific capacity by the constant current discharge method is a value measured using the brand name “HJ-201B” (manufactured by Hokuto Denko) in accordance with the above standard number EIAJ RC-2377. .
- the capacitance was measured by this method, the polymer electrolyte to be measured was cut to obtain a swelled state storage device having a size of 10 mm ⁇ 10 mm.
- the thickness of the obtained storage element of Example 1 and Comparative Examples 1 and 2 in a dry state was 160 ⁇ m.
- PC is an abbreviation for propylene carbonate.
- Example 1 which is the storage element of the present invention, exhibited a large specific capacity of 20 FZcm 3 as measured by the constant current discharge method. This is because at the time of charging, at the negative electrode, an alloy of gold and lithium, which is a metal component of the polarizable electrode, is formed at the negative electrode interface as a layer containing lithium ions by an electrochemical oxidation-reduction reaction, and at the positive electrode. (CF S)
- Example 1 It is considered to have a value obtained by adding the electric double layer capacity of the electric double layer to the specific capacity. It is considered that the power storage element of Example 1 functions as a hybrid capacitor having the characteristics of an electric double layer capacitor and a hybrid capacitor.
- the energy storage devices of Comparative Examples 1 and 2 do not contain lithium ions, even when a voltage is applied to the polarizable electrode, the interface between the negative electrode and the polymer electrolyte remains at the interface. No changes such as alloy formation were observed. Therefore, at the time of charging, only an electric double layer is formed on the positive electrode and the negative electrode, and unlike the power storage element of Example 1, it does not involve a reversible oxidation-reduction reaction unlike a secondary battery mechanism. Therefore, the specific capacities of the storage elements of Comparative Example 1 and Comparative Example 2 are the capacities obtained by the electric double layer capacitance, and are very small, less than 1/2 of the storage elements of Example 1. .
- the electric storage element of the present invention has a larger capacity and a higher charge density than conventional capacitors, and thus can save space and / or size and weight in known electric double-layer capacitors. Can be used.
- the power storage element of the present invention is small and lightweight, it can be suitably used as a power storage element for a power source of a portable machine device and a large-capacity stationary power source.
- the present invention can be suitably used as a power source, a portable power source for a clock, a storage device for quick charging, a power source for a digital camera, an electric toy, and a power source for a portable household electric appliance. The following are more detailed specific applications.
- the power storage element of the present invention is suitable as a power source for a portable machine device due to its small size and light weight, and can reduce the occupied space even when a large capacity power source is required. It is also suitable as a large-capacity stationary power supply.
- the power storage element of the present invention can be suitably used as a capacitor for an electric vehicle including a fuel cell, a capacitor, and a current output type switching regulator.
- the power supply of automobile electrical components such as car audios using the electric storage element of the present invention can improve the fuel efficiency of the vehicle because the electric storage element of the present invention is lightweight.
- a storage and / or auxiliary power supply for renewable energy generation represented by a photovoltaic power generation system, a wind power generation system, a wind power generation, a hybrid power generation system, and a wave power generation system using the power storage element of the present invention is It can be used suitably as a space-saving and large-capacity power supply.
- the implantable medical device using the power storage element of the present invention can be preferably used because the power storage element is lightweight and the burden on the human body is small.
- Portable such as a pot Power supplies for household electrical appliances are also excellent in portability because the energy storage elements are lightweight.
- the electric storage element of the present invention is small and has a large capacity, it can be used for applications other than the use of a known electric double layer capacitor. Specifically, since the power storage element of the present invention is small and has a large capacity, it is connected in parallel between an uninterruptible power supply, an outdoor equipment such as a home power storage system, and a battery and a DC-DC converter.
- Power supply circuits for automotive electrical equipment switching regulators, motor control regulators, computer electronics, flyback transformers used in cathode ray tubes used in television receivers, audio amplifiers, surge protectors, resistance spots To destroy destructible objects such as electric equipment such as welders, co-generation equipment, private power generators, X-ray imaging panels, capacitors for high-voltage advancement (capacitor oil-immersed film capacitors used in power equipment), and bedrock.
- X-ray imaging device that obtains an X-ray image (latent image) as an image signal Display, battery-less wristwatch, display device using display panel, liquid crystal display device, especially liquid crystal display device of matrix used for projector, etc.
- Image display device using cathode ray tube, disposable camera, product for the purpose of antitheft It can be suitably used as a power supply or an auxiliary power supply for a resonance label, a flash or strobe device, and a light-emitting display body which are used by being attached.
- the electric storage element of the present invention since the electric storage element of the present invention has a large capacity, it can be installed in a home electric appliance, a tool, or an electric vehicle (built-in) with a large power source, a storage device of a substation facility or a distribution facility, It can also be suitably used as an auxiliary power storage unit for energy conversion and storage systems.
- the power storage element of the present invention can be used for high-voltage applications by stacking.
- the power storage element of the present invention is small and has a large capacity, so that the device used can be downsized. Therefore, the control module used in the electric vehicle drive device and the inverter device is particularly small and has high cooling efficiency. It can be suitably used for a water-cooled control module. Also, due to its powerful properties, it can be suitably used for an acceleration sensor unit, a gas sensor for measuring exhaust gas and combustible gas, and a gas concentration controller. Further, the electric storage element of the present invention can be suitably used as a heating resistance type air flow measuring device in the form of a three-terminal electrochemical device.
- the power storage device of the present invention has a small size, a large capacity, and a low equivalent series resistance, so that the power storage device is mounted on the top layer of the semiconductor package as a chip component, and the power storage device is mounted on the substrate. It can be suitably used for a built-in printed circuit board. In a printed circuit board in which the electric storage element is incorporated in a printed circuit board, a printed wiring board on which the electric storage element is surface-mounted or mounted is used to reduce the size, function, and cost of an electronic device using the printed wiring board. It is suitable for. Therefore, since the storage element has a small size, a large capacity, and a low equivalent series resistance, the storage device, in particular, a DRAM (dynamic 'random' access.
- a DRAM dynamic 'random' access.
- a ferroelectric memory element since the storage element has a small size, a large capacity, and a low equivalent series resistance, a filter circuit such as a circuit board with a built-in LCR and a noise filter, a ferroelectric memory, a perovskite ferroelectric, an IC (Integrated Circuit) Thin semiconductor devices such as power supplies, FeRAM using ferroelectrics, light emitting element arrays of organic EL elements, IC chips such as IC cards, semiconductor devices having ferroelectric storage elements, and switching elements that perform power conversion Can be suitably used.
- the power storage element of the present invention can be applied to fields for smoothing the power supply of electrical and electronic equipment, removing noise, and requiring an ESR value at a high frequency. Further, the power storage element has a function of suppressing a high frequency, which is a noise component generated by the converter / inverter, and is therefore suitable as a noise filter. Therefore, since the storage element is easy to reduce in size, has a large capacity, and has a low equivalent series resistance, the device to be used can be reduced in size and can be used for a noise filter. It can be suitably used as a measuring device, and can be suitably used as a tactile sensor by being provided with an LC series resonance circuit.
- the signal to be handled such as an optical voltage sensor that measures voltage using the electro-optic effect (Pockels effect), a transformer for optical conversion type instruments, a high-frequency wireless device, a satellite broadcast receiving device, and a wireless LAN.
- the power storage element of the present invention can be used as a housing, a box, a chassis, a chassis, a body, a partition, a support, a cover, or the like in a car or a motorcycle including a home appliance, a device, equipment, a measuring instrument, or an electric car.
- the case and the bendable metal plate may be joined to the electrode layer to connect the metal plate, or may be joined directly by using a silver paste, for example, to be substantially integrated.
- the housing, box, chassis, partition, cover, and casing substantially integrated with the power storage device of the present invention have a small size, a large capacity, and excellent power savings.
- the power storage element of the present invention can be used to supply pure water used in boilers such as power plants, semiconductor manufacturing processes, fuel cell power generation, etc. It can be used in desalination equipment used for manufacturing, recycling and recovery of various wastewaters.
- various ions in raw water can be removed, silica can also be removed, and demineralized water and pure water can be obtained.
- a desalination device that produces stable deionized water and pure water with a stable water quality without changing the treatment, and also enables stable production of secondary pure water (ultra pure water). S can be.
- the electricity storage device of the present invention can be used as an electrochemical device applicable to a display. More specifically, a light-emitting element including a substrate, a pair of comb-shaped electrodes provided on the substrate, and a light-emitting layer provided in contact with the comb-shaped electrode and containing a light-emitting substance and an electrolyte, a current control transistor,
- the present invention can be applied by forming an active matrix type light emitting element array in which unit pixels each including the electric storage element are arranged in a matrix, and applying the electric storage element of the present invention to a display.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US10/582,548 US20070117017A1 (en) | 2003-12-10 | 2004-12-09 | Electricity storage device and process for producing the same |
CN2004800367509A CN1890769B (zh) | 2003-12-10 | 2004-12-09 | 蓄电元件及蓄电元件的制造方法 |
EP04820265A EP1693866A4 (en) | 2003-12-10 | 2004-12-09 | ELECTRICITY STORAGE DEVICE AND METHOD FOR PRODUCING THE SAME |
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JP2003-411288 | 2003-12-10 | ||
JP2003411288A JP4436121B2 (ja) | 2003-12-10 | 2003-12-10 | 蓄電素子および蓄電素子の製造方法 |
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WO2005057597A1 true WO2005057597A1 (ja) | 2005-06-23 |
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US (1) | US20070117017A1 (ja) |
EP (1) | EP1693866A4 (ja) |
JP (1) | JP4436121B2 (ja) |
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WO (1) | WO2005057597A1 (ja) |
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JPH11145009A (ja) * | 1997-11-04 | 1999-05-28 | Mitsubishi Chemical Corp | 電気二重層キャパシター |
JP2002037966A (ja) * | 2000-07-21 | 2002-02-06 | Jsr Corp | 重合体組成物および複合膜 |
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US5366829A (en) * | 1993-06-14 | 1994-11-22 | Valence Technology, Inc. | Method of forming an anode material for lithium-containing solid electrochemical cells |
US5953204A (en) * | 1994-12-27 | 1999-09-14 | Asahi Glass Company Ltd. | Electric double layer capacitor |
JP3800799B2 (ja) * | 1998-04-10 | 2006-07-26 | 三菱化学株式会社 | 電気二重層キャパシター |
US6797428B1 (en) * | 1999-11-23 | 2004-09-28 | Moltech Corporation | Lithium anodes for electrochemical cells |
US6426863B1 (en) * | 1999-11-25 | 2002-07-30 | Lithium Power Technologies, Inc. | Electrochemical capacitor |
GB0016057D0 (en) * | 2000-06-30 | 2000-08-23 | Aea Technology Plc | A method of assembling a cell |
KR100388906B1 (ko) * | 2000-09-29 | 2003-06-25 | 삼성에스디아이 주식회사 | 리튬 2차 전지 |
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2003
- 2003-12-10 JP JP2003411288A patent/JP4436121B2/ja not_active Expired - Fee Related
-
2004
- 2004-12-09 EP EP04820265A patent/EP1693866A4/en not_active Withdrawn
- 2004-12-09 WO PCT/JP2004/018384 patent/WO2005057597A1/ja active Application Filing
- 2004-12-09 CN CN2004800367509A patent/CN1890769B/zh not_active Expired - Fee Related
- 2004-12-09 US US10/582,548 patent/US20070117017A1/en not_active Abandoned
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JPH026208B2 (ja) * | 1984-02-01 | 1990-02-08 | Elna Kk | |
JPS60220574A (ja) * | 1984-04-17 | 1985-11-05 | Matsushita Electric Ind Co Ltd | 充電可能な電気化学装置 |
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JPH11145009A (ja) * | 1997-11-04 | 1999-05-28 | Mitsubishi Chemical Corp | 電気二重層キャパシター |
JP2002037966A (ja) * | 2000-07-21 | 2002-02-06 | Jsr Corp | 重合体組成物および複合膜 |
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Cited By (3)
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---|---|---|---|---|
US7906234B2 (en) * | 2005-08-18 | 2011-03-15 | Panasonic Corporation | All-solid-state lithium secondary cell and method of manufacturing the same |
JP2008235694A (ja) * | 2007-03-22 | 2008-10-02 | Eamex Co | 蓄電素子 |
WO2008123137A1 (ja) * | 2007-03-22 | 2008-10-16 | Eamex Corporation | 蓄電素子 |
Also Published As
Publication number | Publication date |
---|---|
EP1693866A1 (en) | 2006-08-23 |
JP4436121B2 (ja) | 2010-03-24 |
EP1693866A4 (en) | 2009-08-05 |
US20070117017A1 (en) | 2007-05-24 |
JP2005175107A (ja) | 2005-06-30 |
CN1890769A (zh) | 2007-01-03 |
CN1890769B (zh) | 2010-10-06 |
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