WO2014133163A1 - 非水電解液二次電池 - Google Patents
非水電解液二次電池 Download PDFInfo
- Publication number
- WO2014133163A1 WO2014133163A1 PCT/JP2014/055172 JP2014055172W WO2014133163A1 WO 2014133163 A1 WO2014133163 A1 WO 2014133163A1 JP 2014055172 W JP2014055172 W JP 2014055172W WO 2014133163 A1 WO2014133163 A1 WO 2014133163A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- secondary battery
- compound
- positive electrode
- same manner
- Prior art date
Links
Images
Classifications
-
- 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
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- 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
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- 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
-
- 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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0034—Fluorinated solvents
-
- 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
-
- 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
-
- 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 an electrolytic solution for a secondary battery containing an additive, a secondary battery using the same, and further to a lithium ion secondary battery.
- a lithium ion deinsertion reaction occurs at the interface between the electrode and the electrolyte.
- the electrolytic solution solvent and the supporting salt may cause a decomposition reaction. Due to the decomposition reaction, a high-resistance film is formed on the electrode surface, and the lithium ion deinsertion reaction that should take place is inhibited. As a result, it is known that the irreversible reduction of the discharge capacity is promoted and the characteristics as the secondary battery are deteriorated.
- the electrolytic solution includes a composition that can react with water to generate hydrogen ions, and is in contact with the electrolytic solution in the battery.
- a technique in which a hydrogen ion scavenger is disposed at a location is disclosed.
- Patent Document 2 Patent Document 3, and Patent Document 4 as a method of suppressing the decomposition reaction of the electrolytic solution by forming a protective film on the electrode surface, a secondary containing a cyclic sulfonic acid ester having at least two sulfonyl groups is used.
- a technique using a battery electrolyte and a technique using a cyclic or chain disulfonic acid ester having an unsaturated bond are disclosed.
- Patent Documents 5 and 6 disclose a technique including a lithium nickel composite oxide and a chain / cyclic disulfonic acid compound.
- Patent Document 7 describes a lithium ion secondary battery including an electrolytic solution containing a cyclic sulfonate ester.
- Patent Document 5 the study as a lithium ion secondary battery using a specific electrolyte when a specific positive electrode material is used is insufficient.
- an object of the present invention is to provide a secondary battery in which various battery characteristics are improved and storage characteristics, particularly capacity reduction due to self-discharge is suppressed.
- An embodiment according to the present invention includes an electrode element in which a positive electrode and a negative electrode are arranged to face each other, a non-aqueous electrolyte, and an exterior body that contains the electrode element and the non-aqueous electrolyte, and the non-aqueous electrolyte Is a mixture of a lithium manganese composite oxide having a spinel structure and a lithium transition metal composite compound having a layered rock salt structure, wherein the positive electrode active material in the positive electrode contains a cyclic sulfonate ester represented by the general formula (1) This is a non-aqueous electrolyte secondary battery.
- R 1 and R 2 are each independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen group, or an amino group. However, neither R 1 nor R 2 is a hydrogen atom.
- R 3 is an alkylene group having 1 to 5 carbon atoms, a carbonyl group, a sulfonyl group, a fluoroalkylene group having 1 to 6 carbon atoms, or a 2 to 6 carbon atom having an alkylene unit or a fluoroalkylene unit bonded via an ether group.
- a linking group selected from the group consisting of valent groups is shown.
- R 1 in the general formula (1) is a hydrogen atom.
- R 1 is a hydrogen atom
- R 1 in the general formula (1) is a hydrogen atom
- R 3 is represented by —CH 2 —.
- the mixing ratio of the positive electrode active material is preferably 15 wt% to 85 wt% as (lithium manganese composite oxide) / (lithium manganese composite oxide + lithium transition metal composite compound) by weight.
- lithium manganese composite oxide having the spinel structure is represented by the general formula (2).
- A is one element or two or more elements selected from the group consisting of Li, Mg, Al, Co, and B.
- ⁇ is 0 ⁇ ⁇ 0.1.
- the lithium transition metal composite compound having the layered rock salt structure is represented by the general formula (3).
- Me necessarily includes Ni and is composed of one or more elements selected from the group consisting of Co, Al, Mn, Mg, and Zr.
- ⁇ is 0.98 ⁇ ⁇ ⁇ 1.02.
- non-aqueous electrolyte secondary battery that improves various battery characteristics and is excellent in storage characteristics, in particular, suppresses a decrease in capacity due to self-discharge.
- a method for manufacturing the secondary battery in FIG. 1 As an example of a method for manufacturing a secondary battery, a method for manufacturing the secondary battery in FIG. 1 will be described.
- a negative electrode and a positive electrode are laminated via a porous separator 5, or after being laminated, the battery can or a flexible body made of a synthetic resin and a metal foil is used. It is accommodated in an exterior body such as a conductive film and impregnated with a non-aqueous electrolyte.
- coat can be formed on a negative electrode by charging a non-aqueous-electrolyte secondary battery before sealing an exterior body or after sealing.
- porous films such as polyolefin, such as a polypropylene and polyethylene, a fluororesin
- the exterior body can be appropriately selected as long as it is stable to the electrolytic solution and has a sufficient water vapor barrier property.
- a laminated laminate type secondary battery a laminate film made of aluminum, silica-coated polypropylene, polyethylene, or the like can be used as the outer package.
- an aluminum laminate film from the viewpoint of suppressing volume expansion.
- FIG. 1 is an example of a schematic configuration diagram of a nonaqueous electrolyte secondary battery of the present invention.
- the positive electrode is formed by forming a layer 1 containing a positive electrode active material on a positive electrode current collector 3.
- the negative electrode is formed by forming a layer 2 containing a negative electrode active material on a negative electrode current collector 4. These positive electrode and negative electrode are arranged to face each other with a porous separator 5 interposed therebetween.
- the porous separator 5 is disposed in parallel to the layer 2 containing the negative electrode active material.
- an electrode element in which the positive electrode and the negative electrode are arranged to face each other and a nonaqueous electrolytic solution are included in the outer casings 6 and 7.
- a laminate exterior type, a cylindrical type, a square type, a coin type etc. are mention
- non-aqueous electrolyte a cyclic represented by the general formula (1) as an additive.
- Contains a sulfonic acid ester hereinafter sometimes simply referred to as “compound of general formula (1)”.
- R 1 and R 2 are each independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen group, or an amino group. However, neither R 1 nor R 2 is a hydrogen atom.
- R 3 is an alkylene group having 1 to 5 carbon atoms, a carbonyl group, a sulfonyl group, a fluoroalkylene group having 1 to 6 carbon atoms, or a divalent valence having 2 to 6 carbon atoms in which an alkylene unit or a fluoroalkylene unit is bonded via an ether group.
- a linking group selected from the group consisting of:
- the cyclic sulfonate ester of the general formula (1) contained in the non-aqueous electrolyte is decomposed by an electrochemical redox reaction during charge / discharge reaction to form a film on the surface of the electrode active material. Decomposition can be suppressed. This is considered to be effective in extending the life of the lithium ion secondary battery.
- an electrolytic solution containing the compound of the general formula (1) has storage stability. It improved and it discovered that deterioration was suppressed.
- this electrolyte solution was used, it discovered that the capacity
- the present inventors have a substituent at a specific position of the disulfonic acid ester.
- at least one of R 1 and R 2 is not a hydrogen atom.
- the stability of the electrolytic solution was improved and the high-temperature storage characteristics of the battery were improved as compared with the sulfonate ester in which both R 1 and R 2 are hydrogen atoms.
- a compound in which at least one of R 1 and R 2 is an alkyl group is preferable.
- Particularly preferred are compounds in which one is an alkyl group and the other is a hydrogen atom, or both are alkyl groups.
- a compound in which one is an alkyl group and the other is a hydrogen atom is most preferable.
- Alkyl groups for R 1 and R 2 include methyl, ethyl, propyl, butyl and pentyl, which may be linear or branched. In particular, methyl, ethyl and propyl are preferable, and methyl and ethyl are more preferable.
- the halogen for R 1 and R 2 include fluorine, chlorine, bromine and iodine. Among them, fluorine is preferable.
- R 3 is an alkylene group having 1 to 5 carbon atoms, a carbonyl group, a sulfonyl group, a fluoroalkylene group having 1 to 6 carbon atoms, and an alkylene unit or a fluoroalkylene unit having 2 to 6 carbon atoms bonded via an ether group.
- a linking group selected from the group consisting of divalent groups is shown.
- the linking group represented by R 3 is asymmetric, either direction may be used.
- the alkylene group and the fluoroalkylene group may be linear or branched, and are preferably linear.
- the alkylene group - (CH 2) n - ( n is an integer of 1-5) is represented by, - (CH 2) n - ( n is 1 or 2) methylene group is Alternatively, an ethylene group is more preferable, and a methylene group represented by —CH 2 — is further preferable.
- At least one hydrogen atom of an alkylene group represented by — (CH 2 ) n — (n is an integer of 1 to 4) is substituted with an alkyl group, for example, —C (CH 3 ) 2 —, —C (CH 3 ) (CH 2 CH 3 ) —, —C (CH 2 CH 3 ) 2 —, —CH (C m H 2m + 1 ) — (m is an integer of 1 to 4), —CH 2 —C (CH 3 ) 2 —, —CH 2 —CH (CH 3 ) —, —CH (CH 3 ) —CH (CH 3 ) —, —CH (CH 3 ) CH 2 CH 2 — or —CH (CH 3 ) CH 2 CH 2 CH 2 — and the like, and —C (CH 3 ) 2 — or —CH (CH 3 ) — is more preferable, and —CH (CH 3 ) — is still more
- the fluoroalkylene group means that at least one of the hydrogen atoms of the alkylene group is substituted with a fluorine atom, and all the hydrogen atoms may be substituted with a fluorine atom, and the fluorine substitution position and the number of substitutions.
- the optional fluoroalkylene group may be linear or branched, and is preferably linear. In a linear fluoroalkylene group, when all hydrogen atoms are substituted with fluorine atoms, R 3 is represented by — (CF 2 ) n — (n is an integer of 1 to 5).
- the fluoroalkylene group is preferably a monofluoromethylene group, a difluoromethylene group, a monofluoroethylene group, a difluoroethylene group, a trifluoroethylene group or a tetrafluoroethylene group.
- a divalent group having 2 to 6 carbon atoms in which an alkylene unit or a fluoroalkylene unit is bonded via an ether group includes, for example, —R 4 —O—R 5 — (R 4 and R 5 each independently represents an alkylene group or a fluoroalkylene group, and the total number of carbon atoms of R 4 and R 5 is 2 to 6), or —R 6 —O—R 7 —O—R 8- (R 6 , R 7 and R 8 each independently represents an alkylene group or a fluoroalkylene group, and the total number of carbon atoms of R 6 , R 7 and R 8 is 3 to 6).
- R 4 and R 5 may both be an alkylene group, or both may be a fluoroalkylene group, or one may be an alkylene group and the other may be a fluoroalkylene group.
- R 6 , R 7 and R 8 may each independently be an alkylene group or a fluoroalkylene group.
- —CH 2 —O—CH 2 —, —CH 2 —O—C 2 H 4 —, —C 2 H 4 —O—C 2 H 4 —, —CH 2 —O—CH 2 —O—CH 2 —, —CH 2 —O—CHF—, —CH 2 —O—CF 2 —, —CF 2 —O—CF 2 —, —C 2 F 4 —O—C 2 F 4 —, —CF 2 — O—CF 2 —O—CF 2 —, —CH 2 —O—CF 2 —O—CH 2 — and the like can be mentioned.
- R 3 is preferably an alkylene group, a carbonyl group or a fluoroalkylene group, more preferably an alkylene group or a fluoroalkylene group, and — (CH 2 ) n — (n is 1 or 2 ), —C (CH 3 ) 2 —, —CH (CH 3 ) —, monofluoromethylene group, difluoromethylene group, monofluoroethylene group, difluoroethylene group, trifluoroethylene group or tetrafluoroethylene group. More preferred.
- R 3 is preferably —CH 2 —, —C (CH 3 ) 2 —, —CH (CH 3 ) —, —CHF— or —CF 2 —, and —CH 2 — or —CF 2 -Is more preferable.
- the reason for this is not clear, but when the compound represented by the formula (1) is a compound having a 6-membered ring structure, the electrochemical reactivity when forming a film as compared with the compound having a 7-membered ring structure Therefore, it is presumed that this is because a lower resistance and a stronger and better quality film are formed.
- R 3 is particularly preferably a methylene group represented by —CH 2 —.
- R 1 and R 2 each independently represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen or an amino group, provided that both R 1 and R 2 are hydrogen atoms.
- R 3 is a methylene group optionally substituted with fluorine.
- R represents methyl, ethyl, propyl, butyl or pentyl, and preferably represents methyl or ethyl.
- R represents methyl, ethyl, propyl, butyl or pentyl, and preferably represents methyl or ethyl.
- Table 1 specifically illustrates representative examples of the compound represented by the general formula (1), but the present invention is not limited thereto.
- Preferable compounds of the above formula (1) include, for example, compounds in which R 1 is a methyl group or an ethyl group, R 2 is hydrogen, and R 3 is a methylene group or an ethylene group in the formula (1).
- R 1 is a methyl group or an ethyl group
- R 2 is hydrogen
- R 3 is a methylene group
- R 1 is a methyl group
- R 2 is hydrogen
- R 3 is a methylene group.
- the compounds of the above formula (1) may be used alone or in combination of two or more.
- the compound of the general formula (1) is prepared by a production method described in, for example, US Pat. No. 4,950,768, JP-A 61-501089, JP-A 5-44946, JP-A 2005-336155, and the like. Can be obtained.
- the proportion of the compound of the general formula (1) in the electrolytic solution is not particularly limited, but it is preferably contained in 0.005 to 10 wt% of the entire electrolytic solution.
- concentration of the compound represented by the general formula (1) By setting the concentration of the compound represented by the general formula (1) to 0.005 wt% or more, a sufficient film effect can be obtained. More preferably, 0.01 wt% or more is added. By doing so, the battery characteristics can be further improved.
- the raise of the viscosity of electrolyte solution and the increase in resistance accompanying it can be suppressed. More preferably, 5 wt% or less is added, and by doing so, the battery characteristics can be further improved.
- the electrolyte solution of the present embodiment is not particularly limited, but generally contains a compound of the above general formula (1) as an additive in addition to a non-aqueous solvent (aprotic solvent) and a supporting salt.
- a lithium salt can be used as the supporting salt.
- the lithium salt include LiPF 6 , lithium imide salt, LiAsF 6 , LiAlCl 4 , LiClO 4 , LiBF 4 , LiSbF 6, and the like.
- the lithium imide salt LiN (C k F 2k + 1 SO 2 ) (C m F 2m + 1 SO 2 ) (where k and m are each independently a natural number, preferably 1 or 2). Can be mentioned. These may use only 1 type and may use 2 or more types together.
- the concentration of the lithium salt in the electrolytic solution is preferably 0.7 mol / L or more and 2.0 mol / L or less.
- concentration of the lithium salt By setting the concentration of the lithium salt to 0.7 mol / L or more, sufficient ionic conductivity can be obtained.
- concentration of lithium salt 2.0 mol / L or less a viscosity can be made low and the movement of lithium ion is not prevented.
- a solvent containing at least one selected from the group consisting of cyclic carbonates, chain carbonates, aliphatic carboxylic acid esters, ⁇ -lactones, cyclic ethers and chain ethers can be used.
- the cyclic carbonate include propylene carbonate (PC), ethylene carbonate (EC), butylene carbonate (BC), and derivatives thereof (including fluorinated products).
- the chain carbonate include dimethyl carbonate (DMC), diethyl carbonate (DEC), ethyl methyl carbonate (EMC), dipropyl carbonate (DPC), and derivatives thereof (including fluorinated products).
- Examples of the aliphatic carboxylic acid ester include methyl formate, methyl acetate, ethyl propionate, and derivatives thereof (including fluorinated products).
- Examples of ⁇ -lactone include ⁇ -butyrolactone and its derivatives (including fluorinated products).
- Examples of the cyclic ether include tetrahydrofuran, 2-methyltetrahydrofuran and derivatives thereof (including fluorinated products).
- Examples of the chain ether include 1,2-diethoxyethane (DEE), ethoxymethoxyethane (EME), ethyl ether, diethyl ether, and derivatives thereof (including fluorinated compounds).
- non-aqueous solvents include dimethyl sulfoxide, formamide, acetamide, dimethylformamide, dioxolane (eg, 1,3-dioxolane), acetonitrile, propionitrile, nitromethane, ethyl monoglyme, phosphate triester, trimethoxy Methane, dioxolane derivatives, sulfolane, methyl sulfolane, 1,3-dimethyl-2-imidazolidinone, 3-methyl-2-oxazolidinone, 1,3-propane sultone, anisole, N-methylpyrrolidone, and derivatives thereof (fluorine Can also be used.
- the non-aqueous solvent is particularly preferably selected from the group consisting of cyclic carbonates, chain carbonates, aliphatic carboxylic acid esters, ⁇ -lactones, cyclic ethers, chain ethers, and fluorine derivatives of these compounds. Containing at least one of the above. Moreover, a non-aqueous solvent may use only 1 type and may use 2 or more types together.
- the electrolyte solution of the present embodiment can further include a compound having at least one sulfonyl group.
- the compound having at least one sulfonyl group (hereinafter also referred to as a sulfonyl group-containing compound) is a compound different from the cyclic sulfonate ester represented by the general formula (1).
- sulfonyl group-containing compound there are compounds overlapping with the above non-aqueous solvent, but “sulfonyl group-containing compounds” are usually cyclic carbonates, chain carbonates, aliphatic carboxylic acid esters, ⁇ - It is used with at least one non-aqueous solvent selected from the group consisting of lactones, cyclic ethers, chain ethers and fluorine derivatives of these compounds.
- the sulfonyl group-containing compound is preferably a sultone compound represented by the following general formula (4).
- n represents an integer of 0 to 2
- R 1 to R 6 are each independently a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, or Represents an aryl group having 6 to 12 carbon atoms.
- Examples of the compound represented by the general formula (4) include cyclic sulfonic acid esters such as 1,3-propane sultone (PS), 1,4-butane sultone, and 1,3-prop-2-ene sultone.
- cyclic sulfonic acid esters such as 1,3-propane sultone (PS), 1,4-butane sultone, and 1,3-prop-2-ene sultone.
- the sulfonyl group-containing compound is used at 0.005 to 10 wt% of the entire electrolyte.
- the electrolytic solution of the present embodiment can further include vinylene carbonate or a derivative thereof.
- vinylene carbonate or derivatives thereof include vinylene carbonate (VC), 4-methyl vinylene carbonate, 4,5-dimethyl vinylene carbonate, 4-ethyl vinylene carbonate, 4,5-diethyl vinylene carbonate, 4-propyl vinylene carbonate, 4, Mention may be made of vinylene carbonates such as 5-dipropyl vinylene carbonate, 4-phenyl vinylene carbonate and 4,5-diphenyl vinylene carbonate; and vinyl alkylene carbonates such as vinyl ethylene carbonate (VEC) and divinyl ethylene carbonate.
- VEC vinyl ethylene carbonate
- VEC divinyl ethylene carbonate
- Vinylene carbonate or a derivative thereof is used at 0.005 to 10 wt% of the entire electrolyte.
- the electrolyte solution can also contain other additives other than the above compounds, if necessary.
- additives include an overcharge inhibitor and a surfactant.
- the positive electrode can be produced by forming a positive electrode active material layer including a positive electrode active material and a positive electrode binder on a positive electrode current collector.
- a positive electrode active material layer including a positive electrode active material and a positive electrode binder on a positive electrode current collector.
- the positive electrode active material used for the layer 1 containing the positive electrode active material lithium manganese composite oxide having a spinel structure (sometimes referred to as “LMO”), A mixture of a lithium transition metal composite compound having a layered rock salt structure (sometimes referred to as “layered Li compound”) is preferred.
- LMO has a three-dimensional direction in which lithium ions can enter and exit due to its crystal structure. Therefore, it has excellent output characteristics. That is, in order to improve the output as a secondary battery, it is preferable to use LMO for the positive electrode.
- the layered Li compound has a large amount of lithium ions that can be charged and discharged per weight and has a higher oxidation-reduction potential (4 V class) than sulfur (2 V class), and therefore has a high energy density per weight. That is, in order to improve the energy density as a secondary battery, it is preferable to use a layered Li compound for the positive electrode.
- the positive electrode active material In order to achieve both output characteristics and high energy density, it is preferable to use a mixture of LMO and layered Li compound as the positive electrode active material.
- the mixing ratio at that time is preferably 15 wt% to 85 wt% as LMO / (LMO + layered Li compound) by weight. Outside this range, the compatibility between the output characteristics and the high energy density becomes insufficient.
- LMO is preferably a compound represented by the general formula (2).
- A is one or two or more elements selected from the group consisting of Li, Mg, Al, Co, and B.
- ⁇ is 0 ⁇ ⁇ 0.1.
- Li (Mn 0.98 Li 0.02 ) 2 O 4 Li (Mn 0.95 Li 0.05 ) 2 O 4 , Li (Mn 0.98 Mg 0.02 ) 2 O 4 , Li (Mn 0.95 Mg 0.05 ) 2 O 4 , Li (Mn 0.98 Al 0.02 ) 2 O 4 , Li (Mn 0.95 Al 0.05 ) 2 O 4 , Li (Mn 0.98 Al 0.01 Co 0.01 ) 2 O 4 , Li (Mn 0.95 Al 0.025 Co 0.025 ) 2 O 4 , Li (Mn 0.98 Li 0.01 Mg 0.01 ) 2 O 4 , Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 , Li (Mn 0.98 Li 0.01 Mg 0.01 ) 2 O 4 , Li (Mn 0.95 Li 0.025 Mg
- lithium hydroxide (LiOH), lithium carbonate (Li 2 CO 3 ), lithium oxide (Li 2 O), lithium sulfate (Li 2 SO 4 ), or the like can be used as a Li material.
- hydroxides, carbonates, sulfates, oxides and the like can be used as Mn raw materials.
- manganese sulfate (MnSO 4 ) or manganese dioxide (MnO 2 ) is preferable.
- electrolytic manganese dioxide is preferable.
- hydroxides, carbonates, sulfates, oxides, and the like of the replacement element and an Mn raw material are weighed, mixed, and fired so as to have a predetermined molar ratio. Further, it can be substituted in a solution using manganese sulfate or the like. Then, a desired LMO can be obtained by weighing, mixing, and firing the lithium raw material and the Mn raw material so as to have a predetermined molar ratio.
- the layered Li compound is preferably a compound represented by the general formula (3).
- Me necessarily contains Ni and is composed of one or more elements selected from the group consisting of Co, Al, Mn, Mg, and Zr.
- ⁇ is 0.98 ⁇ ⁇ ⁇ 1.02.
- the positive electrode active material one kind of layered Li compound may be contained alone
- LiOH lithium hydroxide
- Li 2 CO 3 lithium carbonate
- Li 2 O lithium oxide
- Li 2 SO 4 lithium sulfate
- hydroxides, carbonates, sulfates, oxides and the like can be used as Ni—Mn—Co raw materials. In particular, it is preferable to prepare by a coprecipitation method.
- ⁇ may be other than 1, specifically 0.98 ⁇ ⁇ ⁇ 1.02.
- polyvinylidene fluoride PVdF
- vinylidene fluoride-hexafluoropropylene copolymer vinylidene fluoride-tetrafluoroethylene copolymer
- styrene-butadiene copolymer rubber polytetrafluoroethylene
- polypropylene Polyethylene, polyimide, polyamideimide and the like
- the amount of the positive electrode binder used is preferably 2 to 10 parts by mass with respect to 100 parts by mass of the positive electrode active material from the viewpoints of binding force and energy density which are in a trade-off relationship.
- the positive electrode current collector aluminum, nickel, silver, and alloys thereof are preferable in view of electrochemical stability.
- the shape include foil, flat plate, and mesh.
- an active material is dispersed and kneaded in a conductive material such as carbon black and a binder such as polyvinylidene fluoride (PVDF) in a solvent such as N-methyl-2-pyrrolidone (NMP). It can obtain by apply
- PVDF polyvinylidene fluoride
- NMP N-methyl-2-pyrrolidone
- the negative electrode can be produced by forming a negative electrode active material layer containing a negative electrode active material and a negative electrode binder on a negative electrode current collector.
- the negative electrode active material used for the layer 2 containing the negative electrode active material is selected from the group consisting of, for example, lithium metal, a lithium alloy, and a material capable of inserting and extracting lithium.
- One or more substances can be used. Examples of materials that occlude and release lithium ions include carbon materials and oxides.
- the carbon material graphite that absorbs lithium, amorphous carbon, diamond-like carbon, carbon nanotubes, composite oxides thereof, and the like can be used. Of these, graphite material or amorphous carbon is preferred.
- the graphite material has high electron conductivity, excellent adhesion to a current collector made of a metal such as copper, and voltage flatness, and is formed at a high processing temperature, so it contains few impurities and has negative electrode performance. It is advantageous for improvement and is preferable.
- the oxide examples include silicon oxide, tin oxide, indium oxide, zinc oxide, lithium oxide, phosphorus oxide (phosphoric acid), boric oxide (boric acid), and composites thereof.
- silicon oxide is preferably included.
- the structure is preferably in an amorphous state. This is because silicon oxide is stable and does not cause a reaction with other compounds, and the amorphous structure does not lead to deterioration due to nonuniformity such as crystal grain boundaries and defects.
- a film forming method a vapor deposition method, a CVD method, a sputtering method, or the like can be used.
- the lithium alloy is composed of lithium and a metal capable of forming an alloy with lithium.
- the lithium alloy is, for example, a binary or ternary alloy of a metal such as Al, Si, Pb, Sn, In, Bi, Ag, Ba, Ca, Hg, Pd, Pt, Te, Zn, La, and lithium. Consists of.
- As the lithium metal or lithium alloy an amorphous one is particularly preferable. This is because the amorphous structure hardly causes deterioration due to non-uniformity such as crystal grain boundaries and defects.
- Lithium metal or lithium alloy is formed by an appropriate method such as a melt cooling method, a liquid quenching method, an atomizing method, a vacuum deposition method, a sputtering method, a plasma CVD method, a photo CVD method, a thermal CVD method, a sol-gel method, etc. Can do.
- binder for the negative electrode examples include polyvinylidene fluoride, vinylidene fluoride-hexafluoropropylene copolymer, vinylidene fluoride-tetrafluoroethylene copolymer, styrene-butadiene copolymer rubber, polytetrafluoroethylene, polypropylene, polyethylene, Polyimide, polyamideimide, or the like can be used.
- the amount of the binder for the negative electrode used is 0.5 to 25 parts by mass with respect to 100 parts by mass of the negative electrode active material from the viewpoints of “sufficient binding force” and “high energy” which are in a trade-off relationship. Is preferred.
- the negative electrode current collector aluminum, nickel, copper, silver, and alloys thereof are preferable in view of electrochemical stability.
- Examples of the shape include foil, flat plate, and mesh.
- Examples of the method for forming the negative electrode active material layer include a doctor blade method, a die coater method, a CVD method, and a sputtering method. After forming a negative electrode active material layer in advance, a thin film of aluminum, nickel, or an alloy thereof may be formed by a method such as vapor deposition or sputtering to form a negative electrode current collector.
- Example 1 (Production of battery) The production of the battery of this example will be described.
- An aluminum foil having a thickness of 20 ⁇ m is used as the positive electrode current collector, and Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0 are used as the positive electrode active material.
- a 75:25 weight ratio mixture with .80 Co 0.20 O 2 was used.
- PVdF Kel KF polymer
- acetylene black Tical Graphite and Carbon
- a 10-micrometer-thick copper foil was used as a negative electrode collector, and graphite was used as a negative electrode active material on this copper foil.
- PVdF KF polymer manufactured by Kureha Co., Ltd.
- acetylene black manufactured by Timcal Graphite and Carbon
- the negative electrode and the positive electrode were laminated
- the compound No. described in Table 1 above is used as an additive. 1 was added so that 0.1 mol / L was contained in the non-aqueous electrolyte. A non-aqueous secondary battery was produced using this non-aqueous electrolyte, and a battery storage test was performed.
- each battery was charged to a CCCV charge rate of 1.0 C and a charge end voltage of 4.2 V for 2.5 hours, and left in a constant temperature bath at 45 ° C. for 4 weeks. After standing, discharging was performed at a CC discharge rate of 1.0 C at room temperature to obtain a remaining capacity. 100 ⁇ (remaining capacity) / (charging capacity before leaving) (%) was defined as the remaining capacity ratio (%). The results are shown in Table 2.
- Example 1 compound no. A secondary battery was prepared in the same manner as in Example 1 except that methylenemethane disulfonate was used instead of 1, and the characteristics of the battery were measured in the same manner as in Example 1. The results are shown in Table 2. In the table, methylenemethane disulfonate is referred to as “Compound A”.
- Example 2 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as the positive electrode active material
- a secondary battery was produced in the same manner as in Example 1 except that a 30:70 weight ratio mixture was used, and the battery characteristics were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 3 The weight ratio of Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 as a positive electrode active material is 75. : Compound No. 25 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 5 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 4 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as the positive electrode active material And a compound having a weight ratio of 30:70 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 5 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 5 The weight ratio of Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 as a positive electrode active material is 75. : Compound No. 25 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 7 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 6 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as the positive electrode active material And a compound having a weight ratio of 30:70 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 7 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 7 The weight ratio of Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 as a positive electrode active material is 75. : Compound No. 25 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 8 was used, and the battery characteristics were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 8 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as the positive electrode active material And a compound having a weight ratio of 30:70 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 8 was used, and the battery characteristics were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 9 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 in a weight ratio of 85:15 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 10 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 11 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 in a weight ratio of 85:15 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 12 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 13 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 in a weight ratio of 85:15 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 14 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 15 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 in a weight ratio of 85:15 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 16> As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 17 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 in a weight ratio of 85:15 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 18 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 19 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 in a weight ratio of 30:70 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 20 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 85:15 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 21 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 22 As a positive electrode active material, a mixture of Li (Mn 0.93 Li 0.07 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 30:70 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 23 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 in a weight ratio of 85:15 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 24 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 25 A mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 in a weight ratio of 85:15 was used as the positive electrode active material, and the compound No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 26 A mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 in a weight ratio of 50:50 was used as the positive electrode active material, and the compound No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 27 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 in a weight ratio of 85:15 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 28 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 in a weight ratio of 50:50 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 29 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 in a weight ratio of 85:15 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 30 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 in a weight ratio of 50:50 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 31 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 in a weight ratio of 85:15 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 32> As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 in a weight ratio of 50:50 was used, and the compound No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 33 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 in a weight ratio of 30:70 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 34 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 85:15 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 35 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used, and the compound No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 36 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Mg 0.025 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 30:70 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 37 As a positive electrode active material, a mixture of Li: Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 in a weight ratio of 85:15 was used, and the compound No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 38 As a positive electrode active material, a mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 in a weight ratio of 50:50 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 39 A mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 as a positive electrode active material in a weight ratio of 85:15. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 40 Mixture of 50:50 weight ratio of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 as the positive electrode active material And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 41 A mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 as a positive electrode active material in a weight ratio of 85:15. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 42 A mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 as a positive electrode active material in a weight ratio of 50:50 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 43 A mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 as a positive electrode active material in a weight ratio of 85:15. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 44 Mixture of 50:50 weight ratio of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 as the positive electrode active material And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 45 A mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 85:15. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 46 Mixture of 50:50 weight ratio of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 as the positive electrode active material And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 47 A mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 30:70 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 48 A mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 85:15. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 49 Mixture of 50:50 weight ratio of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as the positive electrode active material And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 50> A mixture of Li (Mn 0.94 Li 0.025 Al 0.025 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 30:70 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 3.
- Example 51 A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 in a weight ratio of 85:15 was used as the positive electrode active material, and the compound No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 52> As a positive electrode active material, a mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 in a weight ratio of 50:50 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 53 A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 as a positive electrode active material in a weight ratio of 85:15. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 54> A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 as a positive electrode active material in a weight ratio of 50:50. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 55 A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 as a positive electrode active material in a weight ratio of 85:15. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 56> A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 as a positive electrode active material in a weight ratio of 50:50 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 57 As a positive electrode active material, a mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 in a weight ratio of 85:15 And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 58 A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 as a positive electrode active material in a weight ratio of 50:50 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 59 As a positive electrode active material, a mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 in a weight ratio of 85:15 And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 60 As a positive electrode active material, a mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 in a weight ratio of 50:50 And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 61 A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 30:70 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 62 A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 85:15. And compound no. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 63> A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 50:50 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 64 A mixture of Li (Mn 0.94 Li 0.02 Al 0.02 Co 0.02 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 30:70 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 65 Weight ratio 85 of Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 as a positive electrode active material : Compound No. 15 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 66 Weight ratio of Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.20 O 2 as a positive electrode active material 50 : No. 50 compound was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 67 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 as the positive electrode active material Using a mixture with a weight ratio of 85:15.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 68 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Co 0.15 Al 0.05 O 2 as the positive electrode active material And a compound having a weight ratio of 50:50 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 69 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 as a positive electrode active material Using a mixture with a weight ratio of 85:15.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 70 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.80 Mn 0.10 Co 0.10 O 2 as a positive electrode active material And a compound having a weight ratio of 50:50 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 71 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 as the positive electrode active material Using a mixture with a weight ratio of 85:15.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 72 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.70 Mn 0.20 Co 0.10 O 2 as the positive electrode active material And a compound having a weight ratio of 50:50 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 73 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 as the positive electrode active material Using a mixture with a weight ratio of 85:15.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 74 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 as the positive electrode active material And a compound having a weight ratio of 50:50 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 75 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.60 Mn 0.20 Co 0.20 O 2 as the positive electrode active material And a compound having a weight ratio of 30:70 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 76 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as the positive electrode active material Using a mixture with a weight ratio of 85:15.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 77 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as the positive electrode active material And a compound having a weight ratio of 50:50 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 78 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as the positive electrode active material And a compound having a weight ratio of 30:70 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 4.
- Example 79 As a positive electrode active material, a mixture of Li (Mn 0.98 Li 0.02 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 80 As a positive electrode active material, a mixture of Li (Mn 0.95 Mg 0.05 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 81 As a positive electrode active material, a mixture of Li (Mn 0.95 Al 0.05 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 82> As a positive electrode active material, a mixture of Li (Mn 0.95 Al 0.025 Co 0.025 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 83 As a positive electrode active material, a mixture of Li (Mn 0.98 Li 0.01 Mg 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used, and the compound No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 84 A mixture of Li (Mn 0.94 Li 0.02 Mg 0.02 B 0.02 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 50:50 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 85 As a positive electrode active material, a mixture of Li (Mn 0.98 Li 0.01 Al 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 86 As a positive electrode active material, a mixture of Li (Mn 0.95 Li 0.025 Al 0.025 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 in a weight ratio of 50:50 was used. No. In place of Compound No. 1 A secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 87 A mixture of Li (Mn 0.97 Li 0.01 Al 0.01 Co 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as a positive electrode active material in a weight ratio of 50:50 And compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 88 Weight ratio of Li (Mn 0.93 Li 0.02 Al 0.02 Co 0.02 B 0.01 ) 2 O 4 and LiNi 0.50 Mn 0.30 Co 0.20 O 2 as a positive electrode active material 50 : No. 50 compound was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 89 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.40 Mn 0.30 Co 0.30 O 2 as the positive electrode active material And a compound having a weight ratio of 50:50 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 90 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.33 Mn 0.33 Co 0.33 O 2 as the positive electrode active material And a compound having a weight ratio of 50:50 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 91 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.30 Mn 0.30 Co 0.30 Mg 0. A 50:50 weight ratio mixture with 10 O 2 was used.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- Example 92 Li (Mn 0.95 Li 0.01 Mg 0.01 Al 0.01 Co 0.01 B 0.01 ) 2 O 4 and LiNi 0.30 Mn 0.30 Co 0.30 Zr 0.
- a 50:50 weight ratio mixture with 10 O 2 , compound no.
- a secondary battery was produced in the same manner as in Example 1 except that 9 was used, and the characteristics of the battery were examined in the same manner as in Example 1. The results are shown in Table 5.
- the batteries shown in Examples 1 to 92 were confirmed to have an improved remaining capacity ratio, that is, improved storage characteristics, as compared with Comparative Example 1.
- Examples of use of the present invention include driving devices such as electric vehicles, hybrid vehicles, electric motorcycles, and electric assist bicycles, tools such as electric tools, electronic devices such as portable terminals and laptop computers, household power storage systems, and solar power generation. Examples include storage batteries such as systems.
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
一般式(2)中、Aは、Li、Mg、Al、Co、Bからなる群より選ばれる1つ、もしくは2つ以上の元素である。αは、0<α≦0.1である。
一般式(3)中、Meは、Niを必ず含み、かつ、Co、Al、Mn、Mg、Zrからなる群より選ばれる1つ、もしくは2つ以上の元素からなる。βは、0.98≦β≦1.02である。
二次電池の製造方法の一例として、図1の二次電池の製造方法を説明する。乾燥空気または不活性ガス雰囲気において、負極および正極を、多孔質セパレータ5を介して積層、あるいは積層したものを捲回した後に、電池缶や、合成樹脂と金属箔との積層体からなる可とう性フィルム等の外装体に収容し、非水電解液を含浸させる。そして、外装体を封止前または封止後に、非水電解液二次電池の充電を行うことにより、負極上に良好な皮膜を形成させることができる。なお、多孔質セパレータ5としては、ポリプロピレン、ポリエチレン等のポリオレフィン、フッ素樹脂等の多孔性フィルムが用いられる。外装体としては、電解液に安定で、かつ十分な水蒸気バリア性を持つものであれば、適宜選択することができる。例えば、積層ラミネート型の二次電池の場合、外装体としては、アルミニウム、シリカをコーティングしたポリプロピレン、ポリエチレン等のラミネートフィルムを用いることができる。特に、体積膨張を抑制する観点から、アルミニウムラミネートフィルムを用いることが好ましい。
本実施形態におけるリチウム二次電池用電解液(以下、「非水電解液」または単に「電解液」と記載することもある。)は、添加剤として、一般式(1)で表される環状スルホン酸エステル(以下、単に「一般式(1)の化合物」と記載することもある。)を含有する。
正極は、正極集電体上に、正極活物質と正極用結着剤を含む正極活物質層を形成することで作製することができる。図1の非水電解液二次電池において、正極活物質を含有する層1に用いる正極活物質としては、スピネル構造を有するリチウムマンガン複合酸化物(「LMO」と記載することもある)と、層状岩塩構造を有するリチウム遷移金属複合化合物(「層状Li化合物」と記載することもある)の混合物が好ましい。
一般式(2)中、Aは、Li、Mg、Al、Co、Bからなる群より選ばれる1つ、または2つ以上の元素である。αは、0<α≦0.1である。具体的には、
Li(Mn0.98Li0.02)2O4、
Li(Mn0.95Li0.05)2O4、
Li(Mn0.98Mg0.02)2O4、
Li(Mn0.95Mg0.05)2O4、
Li(Mn0.98Al0.02)2O4、
Li(Mn0.95Al0.05)2O4、
Li(Mn0.98Al0.01Co0.01)2O4、
Li(Mn0.95Al0.025Co0.025)2O4、
Li(Mn0.98Li0.01Mg0.01)2O4、
Li(Mn0.95Li0.025Mg0.025)2O4、
Li(Mn0.94Li0.02Mg0.02B0.02)2O4、
Li(Mn0.98Li0.01Al0.01)2O4、
Li(Mn0.95Li0.025Al0.025)2O4、
Li(Mn0.94Li0.025Al0.025B0.01)2O4、
Li(Mn0.97Li0.01Al0.01Co0.01)2O4、
Li(Mn0.94Li0.02Al0.02Co0.02)2O4、
Li(Mn0.93Li0.02Al0.02Co0.02B0.01)2O4、
Li(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4、
などが挙げられる。正極活物質として、1種類のLMOを単独で含んでも2種以上のLMOを組み合わせて含んでもよい。
LiNi0.80Co0.20O2、
LiNi0.80Co0.15Al0.05O2、
LiNi0.80Mn0.10Co0.10O2、
LiNi0.70Mn0.20Co0.10O2、
LiNi0.60Mn0.20Co0.20O2、
LiNi0.60Mn0.20Co0.20O2、
LiNi0.50Mn0.30Co0.20O2、
LiNi0.40Mn0.30Co0.30O2、
LiNi0.33Mn0.33Co0.33O2、
LiNi0.30Mn0.30Co0.30Mg0.10O2、
LiNi0.30Mn0.30Co0.30Zr0.10O2、
などが挙げられる。正極活物質として、1種類の層状Li化合物を単独で含んでも2種以上のLMOを組み合わせて含んでもよい。
負極は、負極集電体上に、負極活物質と負極用結着剤を含む負極活物質層を形成することで作製することができる。図1の非水電解液二次電池において、負極活物質を含有する層2に用いる負極活物質には、たとえばリチウム金属、リチウム合金、およびリチウムを吸蔵・放出できる材料からなる群から選択される一または二以上の物質を用いることができる。リチウムイオンを吸蔵・放出する材料としては、炭素材料および酸化物等を挙げることができる。
(電池の作製)
本実施例の電池の作製について説明する。正極集電体として厚み20μmのアルミニウム箔を用い、正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Co0.20O2との重量比75:25の混合物を用いた。さらに、正極用結着剤としてPVdF(株式会社クレハ製KFポリマー)を用い、導電付与材としてアセチレンブラック(ティムカル・グラファイト・アンド・カーボン社製)を用いた。また、負極集電体として厚み10μmの銅箔を用い、この銅箔上に負極活物質として黒鉛を用いた。さらに、負極用結着剤としてPVdF(株式会社クレハ製KFポリマー)を用い、導電付与材としてアセチレンブラック(ティムカル・グラファイト・アンド・カーボン社製)を用いた。そして、負極と正極とをポリエチレンからなるセパレータを介して積層し、二次電池を作製した。
まず室温にて充電および放電を1回ずつ行った。この時の充放電条件は、CCCV充電レート1.0C、CC放電レート1.0C、充電終止電圧4.2V、放電終止電圧3.0Vとした。なお、1.0Cとは、満充電状態から1時間で放電しきる電流値である。
実施例1において、化合物No.1の代わりにメチレンメタンジスルホン酸エステルを用いた以外は実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を測定した。結果を表2に示す。なお、表中、メチレンメタンジスルホン酸エステルは「化合物A」と記載する。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Co0.20O2との重量比75:25の混合物を用い、化合物No.1の代わりに化合物No.5を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.5を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Co0.20O2との重量比75:25の混合物を用い、化合物No.1の代わりに化合物No.7を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.7を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Co0.20O2との重量比75:25の混合物を用い、化合物No.1の代わりに化合物No.8を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.8を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.80Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.80Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.80Co0.15Al0.05O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.80Co0.15Al0.05O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.80Mn0.10Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.80Mn0.10Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.70Mn0.20Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.70Mn0.20Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.60Mn0.20Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.60Mn0.20Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.60Mn0.20Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.50Mn0.30Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.93Li0.07)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表2に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.80Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.80Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.80Co0.15Al0.05O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.80Co0.15Al0.05O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.80Mn0.10Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.80Mn0.10Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.70Mn0.20Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.70Mn0.20Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.60Mn0.20Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.60Mn0.20Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.60Mn0.20Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.50Mn0.30Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.95Li0.025Mg0.025)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.80Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.80Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.80Co0.15Al0.05O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.80Co0.15Al0.05O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.80Mn0.10Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.80Mn0.10Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.70Mn0.20Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.70Mn0.20Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.60Mn0.20Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.60Mn0.20Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.60Mn0.20Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.025Al0.025B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表3に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.80Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.80Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.80Co0.15Al0.05O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.80Co0.15Al0.05O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.80Mn0.10Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.80Mn0.10Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.70Mn0.20Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.70Mn0.20Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.60Mn0.20Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.60Mn0.20Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.60Mn0.20Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.50Mn0.30Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.94Li0.02Al0.02Co0.02)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Co0.15Al0.05O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Co0.15Al0.05O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Mn0.10Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.80Mn0.10Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.70Mn0.20Co0.10O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.70Mn0.20Co0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.60Mn0.20Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.60Mn0.20Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.60Mn0.20Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比85:15の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比30:70の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表4に示す。
正極活物質としてLi(Mn0.98Li0.02)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.95Mg0.05)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.95Al0.05)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.95Al0.025Co0.025)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.98Li0.01Mg0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.94Li0.02Mg0.02B0.02)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.98Li0.01Al0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.95Li0.025Al0.025)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.97Li0.01Al0.01Co0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.93Li0.02Al0.02Co0.02B0.01)2O4とLiNi0.50Mn0.30Co0.20O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.40Mn0.30Co0.30O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.33Mn0.33Co0.33O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.30Mn0.30Co0.30Mg0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
正極活物質としてLi(Mn0.95Li0.01Mg0.01Al0.01Co0.01B0.01)2O4とLiNi0.30Mn0.30Co0.30Zr0.10O2との重量比50:50の混合物を用い、化合物No.1の代わりに化合物No.9を用いた以外は、実施例1と同様に二次電池を作製し、実施例1と同様に電池の特性を調べた。結果を表5に示す。
2 負極活物質層
3 正極集電体
4 負極集電体
5 多孔質セパレータ
6 ラミネート外装体
7 ラミネート外装体
8 負極タブ
9 正極タブ
Claims (8)
- 正極および負極が対向配置された電極素子と、非水電解液と、前記電極素子および前記非水電解液を内包する外装体とを有し、
前記非水電解液が、一般式(1)で表される環状スルホン酸エステルを含み、
前記正極における正極活物質が、スピネル構造を有するリチウムマンガン複合酸化物と、層状岩塩構造を有するリチウム遷移金属複合化合物の混合物であることを特徴とする非水電解液二次電池。
- 前記一般式(1)中のR1が水素原子であることを特徴とする請求項1に記載の非水電解液二次電池。
- 前記一般式(1)中、R1が水素原子であり、R3が-(CH2)n-または-(CF2)n-(ただし、n=1~5)であることを特徴とする請求項1または2に記載の非水電解液二次電池。
- 前記一般式(1)中のR1が水素原子であり、R2がCmH2m+1(m=1~3)であり、R3が-CH2-であることを特徴とする請求項1乃至3のいずれか1項に記載の非水電解液二次電池。
- 前記正極活物質の混合比が、(リチウムマンガン複合酸化物)/(リチウムマンガン複合酸化物+リチウム遷移金属複合化合物)の重量比で、15wt%から85wt%であることを特徴とする請求項1乃至4のいずれか1項に記載の非水電解液二次電池。
- 前記スピネル構造を有するリチウムマンガン複合酸化物が、一般式(2)で表されることを特徴とする請求項1乃至5のいずれか1項に記載の非水電解液二次電池;
Li(Mn1-αAα)2O4 (2)
(式(2)中、Aは、Li、Mg、Al、Co、Bからなる群より選ばれる1つ、または2つ以上の元素である。αは、0<α≦0.1である。)。 - 前記層状岩塩構造を有するリチウム遷移金属複合化合物が、一般式(3)で表されることを特徴とする請求項1乃至6のいずれか1項に記載の非水電解液二次電池。
LiβMeO2 (3)
(式(3)中、Meは、Niを必ず含み、かつ、Co、Al、Mn、Mg、Zrからなる群より選ばれる1つ、または2つ以上の元素からなる。βは、0.98≦β≦1.02である。) - 電極素子と非水電解液と外装体とを有する非水電解液二次電池の製造方法であって、
正極活物質を含む正極と、負極と、を対向配置して電極素子を作製する工程と、
前記電極素子と、非水電解液と、を外装体の中に封入する工程と、
を含み、
前記非水電解液が式(1)で表される環状スルホン酸エステルを含み、
前記正極活物質がスピネル構造を有するリチウムマンガン複合酸化物と、層状岩塩構造を有するリチウム遷移金属複合化合物とを含むことを特徴とする、非水電解液二次電池の製造方法;
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015503064A JP6380376B2 (ja) | 2013-03-01 | 2014-02-28 | 非水電解液二次電池 |
US14/771,749 US9780411B2 (en) | 2013-03-01 | 2014-02-28 | Nonaqueous electrolyte solution secondary battery |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013041321 | 2013-03-01 | ||
JP2013-041321 | 2013-03-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014133163A1 true WO2014133163A1 (ja) | 2014-09-04 |
Family
ID=51428421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/055172 WO2014133163A1 (ja) | 2013-03-01 | 2014-02-28 | 非水電解液二次電池 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9780411B2 (ja) |
JP (1) | JP6380376B2 (ja) |
WO (1) | WO2014133163A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016021596A1 (ja) * | 2014-08-07 | 2016-02-11 | 日本電気株式会社 | リチウム二次電池およびその製造方法 |
WO2016103509A1 (ja) * | 2014-12-26 | 2016-06-30 | 日産自動車株式会社 | 電気デバイス |
WO2016103511A1 (ja) * | 2014-12-26 | 2016-06-30 | 日産自動車株式会社 | 電気デバイス |
CN107431240A (zh) * | 2015-04-28 | 2017-12-01 | 株式会社钟化 | 包装件 |
WO2019044770A1 (ja) * | 2017-08-30 | 2019-03-07 | 株式会社村田製作所 | 正極活物質、正極、電池、電池パック、電子機器、電動車両、蓄電装置および電力システム |
KR20190119615A (ko) * | 2017-03-08 | 2019-10-22 | 스미토모 세이카 가부시키가이샤 | 비수 전해액용 첨가제, 비수 전해액 및 축전 디바이스 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6380377B2 (ja) | 2013-03-01 | 2018-08-29 | 日本電気株式会社 | リチウムイオン二次電池 |
WO2014133169A1 (ja) * | 2013-03-01 | 2014-09-04 | 日本電気株式会社 | 二次電池用電解液およびそれを用いた二次電池 |
WO2015061370A1 (en) | 2013-10-21 | 2015-04-30 | Milwaukee Electric Tool Corporation | Adapter for power tool devices |
WO2015098624A1 (ja) * | 2013-12-26 | 2015-07-02 | 日本電気株式会社 | 環状スルホン酸エステル化合物、非水電解液、これを用いたリチウムイオン二次電池 |
CN106165160B (zh) * | 2014-03-27 | 2018-11-02 | 日产自动车株式会社 | 非水电解质二次电池 |
KR102459627B1 (ko) * | 2017-08-16 | 2022-10-28 | 삼성전자주식회사 | 디설포네이트계 첨가제 및 이를 포함하는 리튬이차전지 |
CN109687028A (zh) * | 2018-06-29 | 2019-04-26 | 桑顿新能源科技有限公司 | 一种高能量密度锂离子电池及其制作方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004281325A (ja) * | 2003-03-18 | 2004-10-07 | Nec Corp | 二次電池用電解液およびそれを用いた二次電池 |
JP2008153118A (ja) * | 2006-12-19 | 2008-07-03 | Nec Tokin Corp | 非水電解液およびそれを用いた非水電解液二次電池 |
WO2011096572A1 (ja) * | 2010-02-08 | 2011-08-11 | Necエナジーデバイス株式会社 | 非水電解液二次電池 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2996234B1 (ja) | 1998-08-27 | 1999-12-27 | 日本電気株式会社 | 非水電解液二次電池 |
JP4033074B2 (ja) | 2002-08-29 | 2008-01-16 | 日本電気株式会社 | 二次電池用電解液およびそれを用いた二次電池 |
JP2004185931A (ja) | 2002-12-02 | 2004-07-02 | Japan Storage Battery Co Ltd | 非水電解質二次電池 |
CA2418257A1 (fr) | 2003-01-30 | 2004-07-30 | Hydro-Quebec | Composition electrolytique et electrolyte, generateurs les contenant et operant sans formation de dendrite lors du cyclage |
WO2005057713A1 (ja) * | 2003-12-15 | 2005-06-23 | Nec Corporation | 二次電池 |
JP4355947B2 (ja) | 2003-12-15 | 2009-11-04 | 日本電気株式会社 | 二次電池 |
JP4577482B2 (ja) | 2004-02-06 | 2010-11-10 | 日本電気株式会社 | リチウム二次電池用電解液およびそれを用いたリチウム二次電池 |
JP4876417B2 (ja) | 2005-03-29 | 2012-02-15 | 日本電気株式会社 | 二次電池用電解液およびそれを用いた二次電池 |
JP5078334B2 (ja) * | 2005-12-28 | 2012-11-21 | 三洋電機株式会社 | 非水電解質二次電池 |
US7754390B2 (en) | 2006-03-14 | 2010-07-13 | Panasonic Corporation | Manufacturing method of negative electrode for nonaqueous electrolytic rechargeable battery, and nonaqueous electrolytic rechargeable battery using it |
JP5055865B2 (ja) | 2006-07-19 | 2012-10-24 | パナソニック株式会社 | リチウムイオン二次電池 |
JP5046602B2 (ja) * | 2006-09-28 | 2012-10-10 | Necエナジーデバイス株式会社 | 二次電池用正極、およびそれを用いた二次電池 |
WO2008126370A1 (ja) | 2007-03-30 | 2008-10-23 | Panasonic Corporation | 非水電解質二次電池用活物質およびその製造法 |
US20090123832A1 (en) | 2007-11-14 | 2009-05-14 | Sony Corporation | Non-aqueous electrolyte battery |
JP2009129747A (ja) | 2007-11-26 | 2009-06-11 | Nec Corp | 二次電池 |
JP2010062113A (ja) | 2008-09-08 | 2010-03-18 | Nec Tokin Corp | リチウムイオン二次電池 |
JP2010272380A (ja) | 2009-05-22 | 2010-12-02 | Hitachi Ltd | リチウム二次電池用負極およびそれを用いたリチウム二次電池 |
JP5573146B2 (ja) | 2009-12-21 | 2014-08-20 | パナソニック株式会社 | 電気化学素子 |
US20130011747A1 (en) | 2010-03-18 | 2013-01-10 | Nec Energy Devices, Ltd. | Lithium ion secondary battery |
US10312544B2 (en) | 2010-03-26 | 2019-06-04 | Toyota Jidosha Kabushiki Kaisha | Method for manufacturing electrode active material |
CN102214826A (zh) | 2010-04-08 | 2011-10-12 | 深圳市比克电池有限公司 | 锂离子电池及负极材料、改善锂电池低温放电效率的方法 |
JP5508923B2 (ja) | 2010-04-09 | 2014-06-04 | 日立ビークルエナジー株式会社 | 蓄電モジュール |
WO2014109406A1 (ja) | 2013-01-11 | 2014-07-17 | 日本電気株式会社 | リチウムイオン二次電池 |
JP6380377B2 (ja) | 2013-03-01 | 2018-08-29 | 日本電気株式会社 | リチウムイオン二次電池 |
-
2014
- 2014-02-28 JP JP2015503064A patent/JP6380376B2/ja active Active
- 2014-02-28 WO PCT/JP2014/055172 patent/WO2014133163A1/ja active Application Filing
- 2014-02-28 US US14/771,749 patent/US9780411B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004281325A (ja) * | 2003-03-18 | 2004-10-07 | Nec Corp | 二次電池用電解液およびそれを用いた二次電池 |
JP2008153118A (ja) * | 2006-12-19 | 2008-07-03 | Nec Tokin Corp | 非水電解液およびそれを用いた非水電解液二次電池 |
WO2011096572A1 (ja) * | 2010-02-08 | 2011-08-11 | Necエナジーデバイス株式会社 | 非水電解液二次電池 |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2016021596A1 (ja) * | 2014-08-07 | 2017-05-25 | 日本電気株式会社 | リチウム二次電池およびその製造方法 |
US10840551B2 (en) | 2014-08-07 | 2020-11-17 | Nec Corporation | Lithium secondary battery and manufacturing method therefor |
WO2016021596A1 (ja) * | 2014-08-07 | 2016-02-11 | 日本電気株式会社 | リチウム二次電池およびその製造方法 |
CN107112588A (zh) * | 2014-12-26 | 2017-08-29 | 日产自动车株式会社 | 电气设备 |
WO2016103511A1 (ja) * | 2014-12-26 | 2016-06-30 | 日産自動車株式会社 | 電気デバイス |
JPWO2016103509A1 (ja) * | 2014-12-26 | 2017-09-21 | 日産自動車株式会社 | 電気デバイス |
EP3240090A4 (en) * | 2014-12-26 | 2018-03-14 | Nissan Motor Co., Ltd. | Electrical device |
EP3240067A4 (en) * | 2014-12-26 | 2018-04-18 | Nissan Motor Co., Ltd. | Electrical device |
WO2016103509A1 (ja) * | 2014-12-26 | 2016-06-30 | 日産自動車株式会社 | 電気デバイス |
CN107431240A (zh) * | 2015-04-28 | 2017-12-01 | 株式会社钟化 | 包装件 |
KR20190119615A (ko) * | 2017-03-08 | 2019-10-22 | 스미토모 세이카 가부시키가이샤 | 비수 전해액용 첨가제, 비수 전해액 및 축전 디바이스 |
KR102573627B1 (ko) * | 2017-03-08 | 2023-08-31 | 스미토모 세이카 가부시키가이샤 | 비수 전해액용 첨가제, 비수 전해액 및 축전 디바이스 |
JPWO2019044770A1 (ja) * | 2017-08-30 | 2020-10-08 | 株式会社村田製作所 | 正極活物質、正極、電池、電池パック、電子機器、電動車両、蓄電装置および電力システム |
WO2019044770A1 (ja) * | 2017-08-30 | 2019-03-07 | 株式会社村田製作所 | 正極活物質、正極、電池、電池パック、電子機器、電動車両、蓄電装置および電力システム |
JP2022050694A (ja) * | 2017-08-30 | 2022-03-30 | 株式会社村田製作所 | 正極活物質、正極、電池、電池パック、電子機器、電動車両、蓄電装置および電力システム |
JP7052799B2 (ja) | 2017-08-30 | 2022-04-12 | 株式会社村田製作所 | 正極活物質、正極、電池、電池パック、電子機器、電動車両、蓄電装置および電力システム |
US11367875B2 (en) | 2017-08-30 | 2022-06-21 | Murata Manufacturing Co., Ltd. | Positive electrode active material, positive electrode, battery, battery pack, electronic device, electric vehicle, power storage device, and power system |
JP7243879B2 (ja) | 2017-08-30 | 2023-03-22 | 株式会社村田製作所 | 正極活物質、正極、電池、電池パック、電子機器、電動車両、蓄電装置および電力システム |
Also Published As
Publication number | Publication date |
---|---|
US9780411B2 (en) | 2017-10-03 |
JP6380376B2 (ja) | 2018-08-29 |
JPWO2014133163A1 (ja) | 2017-02-09 |
US20160028123A1 (en) | 2016-01-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6380376B2 (ja) | 非水電解液二次電池 | |
JP6398985B2 (ja) | リチウムイオン二次電池 | |
CN106505242B (zh) | 电解质及包括所述电解质的锂电池和二次电池 | |
JP6380377B2 (ja) | リチウムイオン二次電池 | |
WO2013005521A1 (ja) | 二次電池 | |
WO2017154788A1 (ja) | 二次電池用電解液及び二次電池 | |
KR102211367B1 (ko) | 유기전해액 및 상기 전해액을 채용한 리튬전지 | |
JP6341195B2 (ja) | 二次電池用電解液およびそれを用いた二次電池 | |
JP2015115268A (ja) | 非水電解質二次電池 | |
JP5691828B2 (ja) | 二次電池 | |
CN113767501A (zh) | 锂二次电池用非水性电解液和包含其的锂二次电池 | |
WO2016021596A1 (ja) | リチウム二次電池およびその製造方法 | |
WO2014171518A2 (ja) | リチウムイオン二次電池 | |
JP6319092B2 (ja) | 二次電池 | |
JP4265169B2 (ja) | 二次電池用電解液およびそれを用いた二次電池 | |
JP4525018B2 (ja) | リチウム二次電池用電解液およびそれを用いたリチウム二次電池 | |
JP6086116B2 (ja) | リチウム二次電池用電解液およびこれを含むリチウム二次電池 | |
WO2014133161A1 (ja) | 非水電解液二次電池 | |
WO2018179883A1 (ja) | 非水電解質二次電池 | |
CN115720687A (zh) | 非水电解液用添加剂、非水电解液及蓄电器件 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14756645 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2015503064 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14771749 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14756645 Country of ref document: EP Kind code of ref document: A1 |