WO2012001745A1 - 金属空気二次電池 - Google Patents
金属空気二次電池 Download PDFInfo
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- WO2012001745A1 WO2012001745A1 PCT/JP2010/004347 JP2010004347W WO2012001745A1 WO 2012001745 A1 WO2012001745 A1 WO 2012001745A1 JP 2010004347 W JP2010004347 W JP 2010004347W WO 2012001745 A1 WO2012001745 A1 WO 2012001745A1
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- secondary battery
- air secondary
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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
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/08—Hybrid cells; Manufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/8615—Bifunctional electrodes for rechargeable cells
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
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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
- H01M10/052—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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8689—Positive electrodes
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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
- H01M4/381—Alkaline or alkaline earth metals elements
- H01M4/382—Lithium
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
- H01M4/8668—Binders
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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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
Definitions
- the present invention relates to a metal-air battery using oxygen as a positive electrode active material, and more particularly to a chargeable / dischargeable metal-air secondary battery.
- Lithium ion secondary batteries are most expected to be used as storage batteries for electric vehicles because of their light weight and high output.
- the upper limit of the weight energy density is about 400 Wh / kg, and the actually obtained weight energy density is about 100 Wh / kg.
- One of the factors that limit the weight energy density of a lithium ion secondary battery is a positive electrode material of a lithium-containing transition metal oxide typified by lithium cobaltate. Since the transition metal element which is the constituent element is a heavy metal, when it is incorporated as a storage battery, the weight increases, and as a result, the weight energy density decreases.
- metal-air batteries that use oxygen in the atmosphere as the positive electrode material and metal as the negative electrode material are attracting attention.
- This metal-air battery like a lithium ion battery, needs to have a high stack, large area, and large capacity in order to ensure practical output.
- the metal-air battery As represented by the metal-air battery using zinc that has been used for the power supply of hearing aids so far, the metal-air battery has only been put into practical use as a metal-air primary battery. Practical use as a secondary battery has not yet been made.
- Patent Document 1 discloses a configuration in which a lithium-air battery uses a composite oxide containing an alkali metal or an alkaline earth metal, a transition metal, and oxygen as a catalyst.
- Patent Document 1 the charging voltage of Patent Document 1 is as high as 4.3V.
- Non-Patent Document 1 reports that although the discharge potential is 2.5 to 2.7 V with respect to the theoretical open circuit voltage of 2.96 V, the charge potential is high and the charge overvoltage is high.
- An object of the present invention is to reduce a charge overvoltage, which has not been tried in the past in a metal-air secondary battery.
- a metal-air secondary battery includes a negative electrode member that absorbs and releases metal ions that act as a negative electrode active material, a positive electrode member that ionizes oxygen that acts as a positive electrode active material, that is, a positive electrode member, And a separator impregnated with an electrolyte or an electrolyte placed between a negative electrode member and a positive electrode member (positive electrode member).
- the positive electrode member is a porous metal body having a carbon weight of at least 50% or less, and is characterized in that a metal oxide catalyst is supported on the porous metal body.
- the metal porous body is not limited in terms of manufacturing method, such as a braided metal fiber, a foam, or a sintered metal powder. However, it is desirable that the catalyst is easily supported and oxygen is easily diffused, and it is necessary to select an appropriate range for the pore diameter and the porosity.
- the positive electrode member is composed of a metal porous body as a material having a carbon weight of at least 50% or less, and the metal porous catalyst is supported on the metal porous body. Since it is possible to prevent the discharge product from being altered by carbon, as a result, the charge overvoltage can be reduced.
- a conventional positive electrode member contains a carbon material as a conductive material or a catalyst carrier, and this carbon material reacts with lithium oxide (Li 2 O) or lithium peroxide (Li 2 O 2 ) generated in a discharge reaction.
- Li 2 O lithium oxide
- Li 2 O 2 lithium peroxide
- the lithium carbonate (Li 2 CO 3 ) thus produced needs to be decomposed during the charging reaction, which is considered to increase the charging overvoltage.
- the present invention does not have a carbon material contained in the positive electrode member that causes generation of lithium carbonate (Li 2 CO 3 ), and is configured as a metal porous body, thereby generating lithium carbonate (Li 2 CO 3 ). It suppresses and reduces the charge overvoltage.
- Ni, Al, Cu, Ti, SUS, etc. are preferably used, and Ni and Al are particularly preferable.
- metal porous body a metal fiber knitted one, a foam, a sintered metal powder, or the like is preferable.
- metal fiber or powder from the viewpoint of the manufacturing method.
- the specific surface area of the metal porous body is preferably 0.03 m 2 / g or more in consideration of catalyst dispersion.
- the porosity of the metal porous body is desirably 30% or more from the viewpoint of oxygen diffusion and storage of discharge products, and preferably 98% or less from the viewpoint of supporting the catalyst.
- the pore diameter of the metal porous body is preferably 10 nm or more from the viewpoint of oxygen scattering and storage of discharge products, and the upper limit is preferably a range satisfying the above specific surface area and porosity.
- oxides such as Mn, Si, Cu, Sn, Ti, V, Mo, Nb, and Ag are preferable, and MnO 2 and SiO 2 are particularly preferable.
- the metal supplying the metal ions is lithium, sodium, calcium, magnesium, or zinc.
- lithium that can be used at about 3V is particularly preferable because an organic electrolyte can be used and the discharge voltage is as high as 2.0 to 2.5V.
- lithium of the negative electrode may be an alloy with another metal or may contain a carbon material, but pure lithium is preferable from the viewpoint of increasing the energy density.
- the present invention is concerned with carbon in the positive electrode member, it is effective in the case of using carbon even in an air battery using a metal such as sodium, calcium, magnesium, or zinc, and these water-soluble substances.
- the electrolyte solution can be used.
- charging overvoltage can be reduced in a metal-air secondary battery.
- FIG. 1 Sectional drawing of the metal air secondary battery by a present Example.
- the positive electrode member is made of a metal porous body and a metal oxide catalyst, and the weight ratio of the carbon material is at least 50% or less, thereby preventing lithium carbonate of the discharge product by the carbon material.
- a metal-air battery that contributes to reduction of overvoltage will be described.
- a porous metal body is used as a structure that also functions as a conductive agent or / and a catalyst carrier and gas diffusion material used for the positive electrode member. By making the carbon weight ratio of the positive electrode member 50% or less, the lithium carbonate of the discharge product can be prevented.
- Ni, Al, Cu, Ti, SUS, etc. are preferably used, and Ni, Al, Cu are particularly preferable.
- the specific surface area of the metal porous body is preferably 0.03 m 2 / g or more from the viewpoint of dispersion of the catalyst.
- the pore diameter of the metal porous body is preferably 10 nm or more, and preferably 450 ⁇ m or less. This is because if the pores are too small, the diffusion of oxygen may deteriorate and the performance may be reduced. If the pores are too large, the catalyst cannot be supported effectively.
- a porosity of a metal porous body 30% or more is preferable and 98% or less is preferable. This is because if the porosity is too small, the discharge product (Li 2 O 2 ) immediately deposits in the pores of the positive electrode member and inhibits the battery reaction, and if the porosity is too large, This is because the catalyst cannot be supported effectively.
- oxides such as Mn, Si, Cu, Sn, Ti, V, Mo, Nb, and Ag are preferable, and MnO 2 and SiO 2 are particularly preferable.
- the method for supporting the metal oxide catalyst is not particularly limited, but for ease of production, the catalyst is dispersed in a solvent and the dispersion is impregnated into the metal porous body, followed by drying.
- a method of mixing and solidifying the metal powder and the catalyst with a binder is preferable.
- the present invention is a technique for solving the problem of carbon oxidation, and can be used in a metal-air secondary battery other than lithium that has used carbon.
- a non-aqueous electrolytic solution generally used for a lithium ion secondary battery or the like can be used.
- At least one solvent selected from carbonate and chloropropylene carbonate can be used.
- a cyclic compound having a high boiling point is preferably used.
- a solid electrolyte held in a polymer such as ethylene oxide, acrylonitrile, vinylidene fluoride, methyl methacrylate, hexafluoropropylene, or an ionic liquid may be used instead of the non-aqueous electrolyte.
- an electrolyte generally used in a lithium ion secondary battery or the like can be used.
- a gel electrolyte obtained by impregnating a polymer of ethylene oxide, acrylonitrile, vinylidene fluoride, methyl methacrylate, hexafluoropropylene with a nonaqueous electrolytic solution may be used.
- binding material (binder) used in the present embodiment a binding material generally used in a lithium ion secondary battery or the like can be used.
- fluorine-based resins such as polyvinylidene fluoride (PVDF) and polytetrafluoroethylene (PTFE), styrene butadiene rubber (SBR), and the like can be used.
- PVDF polyvinylidene fluoride
- PTFE polytetrafluoroethylene
- SBR styrene butadiene rubber
- separator used in the present embodiment a separator generally used in a lithium ion secondary battery or the like can be used.
- porous separators such as polyethylene and polypropylene, glass ceramics having metal ion conductivity, and the like can be used.
- the shape of the cell used in this embodiment is not particularly limited as long as the reaction of the metal-air secondary battery can be confirmed, and may be either a laminate type or a cylindrical type. This embodiment does not depend on the shape of the cell.
- catalysts used are all crystalline metal oxides.
- FIG. 1 shows a cross-sectional view of a metal-air secondary battery according to this example.
- FIG. 1 shows a schematic diagram of a swedilock type cell.
- the cell was assembled in a glove box.
- FIG. 2 is an enlarged view of the positive electrode member 1 that ionizes oxygen shown in FIG.
- the positive electrode member 1 includes a 1a base material, a 1b carrier, a 1c catalyst, and a 1d binder.
- the 1a base material is a function as a base material for applying a 1c catalyst, which is normally powdered, to form an electrode
- the 1b carrier is a function for supporting the 1c catalyst
- the 1c catalyst is an ionization of oxygen.
- the 1d binder is a member having a function of binding 1a, 1b, and 1c.
- the positive electrode member 1 includes a 1a base material, a 1b carrier, a metal porous body 11 having functions of a current collector 6, and pores 12 present in the 11. Furthermore, it consists of a metal oxide 13 as a 1c catalyst supported around the pores.
- Ni felt knitted with Ni fibers was used as a metal material not containing carbon.
- This Ni felt was used with a porosity of 90% and a pore diameter of about 50 ⁇ m, and a cell was assembled with a thickness of 1 mm and a diameter of 12 mm.
- this manganese dioxide functions as a catalyst for ionizing oxygen, as a result, the positive electrode member 1 has an ability to ionize oxygen.
- the positive electrode member 1 and the lithium metal 3 that is a negative electrode member that occludes / releases metal ions are insulated by the separator 2.
- the lithium metal 3 is a hollowed out material with a diameter of 8 mm and a thickness of 1 mm.
- the electrode area was defined as the area of lithium metal and was 0.5 mm 2 .
- the separator 2 is made of polyethylene and is cut to a diameter of 14 mm.
- the sizes of the separator 2, the positive electrode member 1, and the lithium metal 3 are set. This is because it is considered preferable that the size is set to be smaller in the order of the separator, the positive electrode member, and the negative electrode member.
- a few drops of the electrolytic solution are dropped on the surface of the lithium metal 4 and the surface of the positive electrode member 1 to impregnate the separator 2.
- a current collector 6 made of a 1 mm thick stainless steel (SUS) mesh is disposed.
- the current collector 6 can also be used as long as it is a porous metal body according to the present invention in which the 1a base material has electron conductivity and gas diffusibility.
- An O-ring 4 is disposed around the lithium metal 3, a stainless steel (SUS) pressing plate 5 is applied to the lithium metal 3 and the O-ring 4, and the lithium metal 3 and the O-ring 4 and the pressing plate are placed.
- the squeezing spring 7 is installed so that 5 is closely attached.
- the lithium metal 3, the separator 2, and the positive electrode member 1 are in close contact with each other.
- oxygen gas 99.9% was flowed from the outside of the current collector 6 into the cell at a flow rate of 500 ml / min. Oxygen gas was allowed to flow for about 10 to 15 minutes, the oxygen sealing valve 8 attached to the cell was closed, and oxygen gas was sealed inside the cell.
- the charge / discharge conditions are such that the electrode area is 0.5 cm 2 , discharge is 2.0 V cut-off at CC 0.1 mA / cm 2 , and charge is 4.0 V cut-off at CC 0.1 mA / cm 2 .
- the present invention A has a large specific surface area and a small pore diameter.
- a felt-like metal porous body knitted with fibers is A, and a porous body obtained by foaming metal is D.
- Carbon material Ketjen black (abbreviation: KB), 1c catalyst MnO 2 , 1d binder PVdF is selected as 1b carrier, and a slurry prepared by mixing the carbon material so that the weight ratio of carbon material is 50% is carbon paper of 1a base material. It is the structure applied to.
- the weight ratio of the carbon material is a value defined below.
- Carbon material weight ratio (%) (Weight of carbon material of 1b support) / (Weight of 1b carrier + 1c weight of catalyst + 1d weight of binder) ⁇ 100
- 1b is a slurry prepared by selecting carbon material: ketjen black (abbreviation: KB), 1c catalyst MnO 2 , 1d binder PTFE as a carrier, and mixing the carbon material so that the weight ratio of the carbon material is 50% or more and 59%. It is the structure applied to the carbon paper of the material.
- FIG. 4 shows the charge / discharge characteristics of Example A of the present invention.
- the positive electrode member preferably has a carbon weight of 50% or less.
- the metal porous body does not contain a carbon material and is chemically stable, the effects of the present invention can be obtained, so that Ni, Al, Cu, Ti, SUS, or the like can be used.
- the positive electrode member can also serve as the current collector plate 6, in which case the number of parts is reduced, which is preferable.
- the metal is preferably low resistance Ni, Al, Cu or the like.
- the effect of the present invention can be exhibited by using a metal porous body having a large specific surface area. Therefore, the specific surface area of the metal porous body is preferably at least 0.03 m 2 / g or more.
- the effect of the present invention can be obtained as long as the metal oxide catalyst has oxygen reduction / oxygen generation ability.
- MnO 2 is preferable, but as shown in Invention Example B, the effect can be exhibited even with SiO 2 .
- FIG. 6 shows the charge / discharge characteristics of Configuration E and Comparative Example F, in which the weight of MnO 2 in Invention Example A is about 10 times 20 mg.
- This embodiment can suppress an increase in overvoltage during charging that prevents the metal-air battery from becoming a secondary battery, and the metal-air secondary battery shown in this embodiment has good cycle characteristics and a long catalyst life. Conceivable.
- the present invention relates to a metal-air secondary battery, and may be used as a hybrid electric vehicle (HEV), an electric vehicle (EV), or a power storage power source.
- HEV hybrid electric vehicle
- EV electric vehicle
- power storage power source a power storage power source
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Abstract
Description
放電反応として、
(負極側)2Li→2Li++2e- …(1)
(正極側)O2+2Li++2e-→Li2O2 …(2)
(全反応)2Li+O2→Li2O2 …(3)
また、充電反応として、
(負極側)2Li←2Li++2e- …(4)
(正極側)O2+2Li++2e-←Li2O2 …(5)
(全反応)2Li+O2←Li2O2 …(6)
の反応が一般に知られている。
図1に、本実施例による金属空気二次電池の断面図を示す。
触媒をSiO2にしている点以外は、構成Aと同様である。
構成Aで用いているNi金属多孔質体を変更し、触媒としては構成AのMnO2を用いた。本発明A構成と本発明C構成でそれぞれ用いた、Ni金属多孔質体の物性を表2に纏める。
1b担体として炭素材料:ケッチェンブラック(略語:KB)、1c触媒MnO2、1dバインダPVdFを選定し、炭素材料の重量比が50%となるように混合したスラリーを、1a基材のカーボンペーパに塗布した構成である。なお、ここで、炭素材料の重量比とは、下記で定義される値である。
炭素材料の重量比(%)
=(1b担体の炭素材料の重量)
/(1b担体の重量+1c触媒の重量+1dバインダの重量)×100
図5に示すように、構成Aで用いているNi金属多孔質体(厚さ1mm、直径12mm)を2枚用意し、その間に、直接バインダをつけずに粒子状の触媒MnO2を挟み込んだ構成とした。
1b担体として炭素材料:ケッチェンブラック(略語:KB)、1c触媒MnO2、1dバインダPTFEを選定し、炭素材料の重量比が50%以上の59%となるように混合したスラリーを、1a基材のカーボンペーパに塗布した構成である。
1a 基材
1b 担体
1c 触媒
1d バインダ
2 セパレータ
3 リチウム金属
4 Oリング
5 押さえ板
6 集電板
7 締め付けバネ
8 酸素封入弁
11 金属多孔質体
12 細孔
13 金属酸化物触媒
Claims (11)
- 金属イオンを吸蔵・放出する負極部材と、酸素をイオン化する正極部材と、前記負極部材と前記正極部材との間に設置された電解質が含浸されているセパレータと、を有する金属空気二次電池において、
前記正極部材は、少なくとも基材と、担体と、触媒と、バインダからなり、
前記正極部材における下記の式で表される炭素材料の重量比が50%以下であることを特徴とする金属空気二次電池。
炭素材料の重量比(%)
=(担体に含まれる炭素材料の重量)
/(担体の重量+触媒の重量+バインダの重量)×100 - 請求項1に記載の金属空気二次電池において、
前記担体に金属多孔質体を用いたことを特徴とする金属空気二次電池。 - 請求項2に記載の金属空気二次電池において、
金属酸化物を金属多孔質体の細孔の周りに担持したことを特徴とする金属空気二次電池。 - 請求項2に記載の金属空気二次電池において、
金属多孔質体の比表面積を0.03m2/g以上としたことを特徴とする金属空気二次電池。 - 請求項2に記載の金属空気二次電池において、
金属多孔質体の細孔径を10nm以上、450μm以下としたことを特徴とする金属空気二次電池。 - 請求項2に記載の金属空気二次電池において、
金属多孔質体の気孔率を30%以上、98%以下としたことを特徴とする金属空気二次電池。 - 請求項1に記載の金属空気二次電池において、
前記金属イオンを供給する金属が、リチウム,ナトリウム,カルシウム,マグネシウム、または、亜鉛であることを特徴とする金属空気二次電池。 - 請求項1に記載の金属空気二次電池において、
触媒としてMn,Si,Cu,Sn,Ti,V,Mo,Nb,Agのいずれからなる酸化物を担持したことを特徴とする金属空気二次電池。 - 請求項1に記載の金属空気二次電池において、
前記基材と前記担体とを同一部材としたことを特徴とする空気二次電池。 - 請求項1に記載の金属空気二次電池において、
前記正極部材に接して集電体を備え、前記基材と前記担体と前記集電体を同一部材としたことを特徴とする空気二次電池。 - 請求項1に記載のリチウム空気二次電池において、
充電電圧を3.5V以下としたことを特徴とするリチウム空気二次電池。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/807,028 US8883358B2 (en) | 2010-07-02 | 2010-07-02 | Metal air secondary battery |
JP2012522355A JP5625059B2 (ja) | 2010-07-02 | 2010-07-02 | 金属空気二次電池 |
PCT/JP2010/004347 WO2012001745A1 (ja) | 2010-07-02 | 2010-07-02 | 金属空気二次電池 |
Applications Claiming Priority (1)
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WO2014210520A1 (en) | 2013-06-28 | 2014-12-31 | Dynantis Corporation | Secondary alkali metal/oxygen batteries |
JP2015173079A (ja) * | 2014-03-12 | 2015-10-01 | 日本電信電話株式会社 | リチウム空気二次電池 |
JP2015230800A (ja) * | 2014-06-04 | 2015-12-21 | 日本電信電話株式会社 | リチウム空気二次電池 |
JP2015230803A (ja) * | 2014-06-04 | 2015-12-21 | 日本電信電話株式会社 | リチウム空気二次電池及び該リチウム二次電池に使用する正極の作製方法 |
WO2016088891A1 (ja) * | 2014-12-04 | 2016-06-09 | 独立行政法人国立高等専門学校機構 | 空気電池用正極、この正極を用いた空気電池、及び、該正極の製造方法 |
JP2018032573A (ja) * | 2016-08-26 | 2018-03-01 | 日本電信電話株式会社 | リチウム空気二次電池 |
CN109560250A (zh) * | 2017-09-27 | 2019-04-02 | 财团法人工业技术研究院 | 电极、其制造方法及包含其的装置 |
US10344118B2 (en) | 2015-02-14 | 2019-07-09 | Materia, Inc. | Romp polymers having improved resistance to hydrocarbon fluids |
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CN103828121A (zh) * | 2011-09-29 | 2014-05-28 | 丰田自动车株式会社 | 金属空气电池 |
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US9472833B1 (en) | 2016-06-28 | 2016-10-18 | Abigail Thurmond | Methods and apparatuses relating to zinc-air batteries |
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WO2014210520A1 (en) | 2013-06-28 | 2014-12-31 | Dynantis Corporation | Secondary alkali metal/oxygen batteries |
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JP2015173079A (ja) * | 2014-03-12 | 2015-10-01 | 日本電信電話株式会社 | リチウム空気二次電池 |
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JP2015230803A (ja) * | 2014-06-04 | 2015-12-21 | 日本電信電話株式会社 | リチウム空気二次電池及び該リチウム二次電池に使用する正極の作製方法 |
WO2016088891A1 (ja) * | 2014-12-04 | 2016-06-09 | 独立行政法人国立高等専門学校機構 | 空気電池用正極、この正極を用いた空気電池、及び、該正極の製造方法 |
CN107004863A (zh) * | 2014-12-04 | 2017-08-01 | 独立行政法人国立高等专门学校机构 | 空气电池用正极、利用该正极的空气电池和该正极的制造方法 |
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US10344118B2 (en) | 2015-02-14 | 2019-07-09 | Materia, Inc. | Romp polymers having improved resistance to hydrocarbon fluids |
JP2018032573A (ja) * | 2016-08-26 | 2018-03-01 | 日本電信電話株式会社 | リチウム空気二次電池 |
CN109560250A (zh) * | 2017-09-27 | 2019-04-02 | 财团法人工业技术研究院 | 电极、其制造方法及包含其的装置 |
Also Published As
Publication number | Publication date |
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US8883358B2 (en) | 2014-11-11 |
US20130101907A1 (en) | 2013-04-25 |
JPWO2012001745A1 (ja) | 2013-08-22 |
JP5625059B2 (ja) | 2014-11-12 |
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