WO2015053478A1 - 규소계 화합물을 포함하는 이차전지 - Google Patents
규소계 화합물을 포함하는 이차전지 Download PDFInfo
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- WO2015053478A1 WO2015053478A1 PCT/KR2014/008056 KR2014008056W WO2015053478A1 WO 2015053478 A1 WO2015053478 A1 WO 2015053478A1 KR 2014008056 W KR2014008056 W KR 2014008056W WO 2015053478 A1 WO2015053478 A1 WO 2015053478A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a secondary battery including a silicon-based compound with improved lifetime characteristics and safety.
- lithium secondary batteries with high energy density and voltage, long cycle life, and low self discharge rate It is commercially used and widely used.
- lithium secondary batteries use a layered structure of lithium cobalt composite oxide for the positive electrode and a graphite-based material for the negative electrode, but in the case of lithium cobalt composite oxide, cobalt, which is a main component, is very expensive and safe. It is disadvantageous in that it is not suitable for electric vehicles, and has a disadvantage in that it is difficult to exhibit high capacity due to an increase in energy density.
- This as a positive electrode active material the use of lithium-containing manganese oxide such as LiMn 2 O 4 of the layered crystal structure of LiMnO 2, spinel crystal structure and lithium nickel oxide (LiNiO 2) has been considered.
- a carbon-based material is mainly used as a negative electrode active material, and recently, due to an increasing demand for high capacity secondary batteries, mixed use with SiO having an effective capacity of 10 times or more than that of a carbon-based material has been considered.
- lithium secondary batteries have various problems, some of which are related to the manufacturing and operating characteristics of the negative electrode.
- the carbon-based negative electrode active material of the negative electrode active material has a solid electrolyte interface (SEI) layer formed on the surface of the negative electrode active material during an initial charge and discharge process (activation process), thereby causing an initial irreversibility.
- SEI solid electrolyte interface
- an additive may be used in the electrolyte, but the electrolyte additive, which has been conventionally used, has a main function of preventing side products generated during charging and discharging.
- the present invention aims to solve the problems of the prior art as described above and the technical problems that have been requested from the past.
- the present invention provides a positive electrode mixture comprising a positive electrode mixture containing a positive electrode active material is applied to the current collector; A negative electrode on which a negative electrode mixture including a negative electrode active material is applied to a current collector, the negative electrode comprising a carbon-based material and a silicon-based compound; And an electrolyte comprising a lithium salt and a non-aqueous solvent, wherein the electrolyte includes an electrolyte including a cyclic carbonate and / or a linear solvent.
- the secondary battery according to the present invention includes electrolytes containing predetermined carbonates, and solves the problems caused by the formation of the SEI layer that may appear when using a carbon-based material and a silicon-based compound as the negative electrode active material to secure safety.
- the life characteristics and capacity characteristics of the battery of the secondary battery may be improved.
- the carbon-based material is, for example, graphite such as natural graphite, artificial graphite, carbon black, carbon black, acetylene black, Ketjen black, channel black, furnace black, lamp black, thermal black, such as carbon black or carbon fiber And the like, and these may be used alone or in combination of two or more, and specifically, may be graphite.
- graphite such as natural graphite, artificial graphite, carbon black, carbon black, acetylene black, Ketjen black, channel black, furnace black, lamp black, thermal black, such as carbon black or carbon fiber And the like, and these may be used alone or in combination of two or more, and specifically, may be graphite.
- the silicon (Si) compound may be, for example, at least one selected from the group consisting of chlorosilanes, alkoxysilanes, aminosilanes, fluorine alkylsilanes, silicon, silicon chloride and silicon oxide (SiO), and specifically, oxidation Silicon (SiO).
- Such silicon oxide (SiO) may be a material in which silicon dioxide (SiO 2 ) and amorphous silicon have a mixing ratio of 1: 1 based on the weight ratio.
- the carbon-based material silicon (Si)
- the compound may have a mixing ratio of 80:20 to 99: 1 based on the weight ratio, and in detail, may have a mixing ratio of 90:10 to 99: 1, and more specifically, 95: 5 to 97: 1. It may have a mixing ratio, and more specifically, may have a mixing ratio of 95: 5, or 97: 3.
- the cyclic carbonate is not limited if known in the art, for example, may be one or more selected from the group consisting of ethylene carbonate (EC), propylene carbonate (PC), butylene carbonate (BC).
- EC ethylene carbonate
- PC propylene carbonate
- BC butylene carbonate
- the linear solvent includes linear carbonates and linear esters, for example dimethyl carbonate (DMC), diethyl carbonate (DEC), ethyl methyl carbonate (EMC) methyl propionate (MP) and ethyl propionate (EP It may be one or more selected from the group consisting of.
- DMC dimethyl carbonate
- DEC diethyl carbonate
- EMC ethyl methyl carbonate
- MP methyl propionate
- EP ethyl propionate
- the cyclic carbonate and the linear solvent may be used in a mixing ratio of 1: 0.5 to 1: 8 based on the volume ratio, and in detail, may be used in a mixing ratio of 1: 1 to 1: 3.
- the electrolyte may further include vinylene carbonate (VC) and fluoroethylene carbonate (FEC) in order to improve life characteristics.
- VC vinylene carbonate
- FEC fluoroethylene carbonate
- the vinylene carbonate (VC) is more than 0.5% to 5% by weight based on the total weight of the electrolyte and fluoroethylene carbonate (FEC) is more than 1% to 10% by weight based on the total weight of the electrolyte
- the vinylene carbonate (VC) may be present in an amount of 1.0 wt% or more and 4.0 wt% or less based on the total weight of the electrolyte, and fluoroethylene carbonate (FEC) may be 2 wt% or more based on the total weight of the electrolyte.
- VC vinylene carbonate
- FEC fluoroethylene carbonate
- the additive when the vinylene carbonate (VC) is 0.5 wt% or less based on the total weight of the electrolyte or the content of fluoroethylene carbonate (FEC) is 1 wt% or less based on the total weight of the electrolyte, a secondary electrode including silicon oxide is applied. It is undesirable because the degree of volume expansion of the negative electrode in the cell can be large, and if the vinylene carbonate (VC) exceeds 5% by weight or the fluoroethylene carbonate (FEC) exceeds 10% by weight, the life of the battery including the same The property may be degraded, which is not preferable.
- the secondary battery may be a lithium secondary battery.
- the lithium secondary battery includes a cathode prepared by applying the mixture of the cathode active material, the conductive material and the binder as described above on a cathode current collector, followed by drying and pressing, and a cathode manufactured using the same method, in which case, In some cases, a filler may be further added to the mixture.
- the positive electrode current collector is generally made to a thickness of 3 to 500 ⁇ m. Such a positive electrode current collector is not particularly limited as long as it has high conductivity without causing chemical change in the battery. For example, stainless steel, aluminum, nickel, titanium, calcined carbon, or aluminum or stainless steel Surface-treated with carbon, nickel, titanium, silver, and the like may be used.
- the current collector may form fine irregularities on its surface to increase the adhesion of the positive electrode active material, and may be in various forms such as a film, a sheet, a foil, a net, a porous body, a foam, and a nonwoven fabric.
- the conductive material is typically added in an amount of 1 to 50% by weight based on the total weight of the mixture including the positive electrode active material.
- a conductive material is not particularly limited as long as it has conductivity without causing chemical change in the battery, and examples thereof include graphite such as natural graphite and artificial graphite; Carbon blacks such as carbon black, acetylene black, Ketjen black, channel black, furnace black, lamp black, and summer black; Conductive fibers such as carbon fibers and metal fibers; Metal powders such as carbon fluoride powder, aluminum powder and nickel powder; Conductive whiskeys such as zinc oxide and potassium titanate; Conductive metal oxides such as titanium oxide; Conductive materials such as polyphenylene derivatives and the like can be used.
- the binder is a component that assists in bonding the active material and the conductive material to the current collector, and is generally added in an amount of 1 to 50 wt% based on the total weight of the mixture including the positive electrode active material.
- binders include polyvinylidene fluoride, polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, hydroxypropyl cellulose, regenerated cellulose, polyvinylpyrrolidone, tetrafluoroethylene, polyethylene , Polypropylene, ethylene-propylene-diene terpolymer (EPDM), sulfonated EPDM, styrene butylene rubber, fluorine rubber, various copolymers and the like.
- the filler is optionally used as a component for inhibiting expansion of the positive electrode, and is not particularly limited as long as it is a fibrous material without causing chemical change in the battery.
- the filler include olefinic polymers such as polyethylene and polypropylene; Fibrous materials, such as glass fiber and carbon fiber, are used.
- the negative electrode current collector is generally made of a thickness of 3 ⁇ 500 ⁇ m.
- a negative electrode current collector is not particularly limited as long as it has conductivity without causing chemical change in the battery.
- the surface of copper, stainless steel, aluminum, nickel, titanium, calcined carbon, copper or stainless steel Surface-treated with carbon, nickel, titanium, silver, and the like, aluminum-cadmium alloy, and the like can be used.
- fine concavities and convexities may be formed on the surface to enhance the bonding strength of the negative electrode active material, and may be used in various forms such as a film, a sheet, a foil, a net, a porous body, a foam, and a nonwoven fabric.
- the lithium secondary battery may have a structure in which a lithium salt-containing electrolyte is impregnated in an electrode assembly having a structure in which a separator is interposed between a positive electrode and a negative electrode.
- the separator is interposed between the anode and the cathode, and an insulating thin film having high ion permeability and mechanical strength is used.
- the pore diameter of the separator is generally from 0.01 to 10 ⁇ m ⁇ m, thickness is generally 5 ⁇ 300 ⁇ m.
- a separator for example, olefin polymers such as chemical resistance and hydrophobic polypropylene; Sheets or non-woven fabrics made of glass fibers or polyethylene are used.
- a solid electrolyte such as a polymer
- the solid electrolyte may also serve as a separator.
- the lithium salt-containing electrolyte is composed of a non-aqueous solvent and a lithium salt
- the lithium salt is a good material to dissolve in the non-aqueous electrolyte, for example, LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10, LiPF 6, LiCF 3 SO 3, LiCF 3 CO 2, LiAsF 6, LiSbF 6, LiAlCl 4, CH 3 SO 3 Li, (CF 3 SO 2) 2 NLi, chloroborane lithium, lower aliphatic carboxylic acid lithium, 4 Lithium phenyl borate, imide and the like can be used.
- pyridine triethyl phosphite, triethanolamine, cyclic ether, ethylene diamine, n-glyme, hexaphosphate triamide, nitro Benzene derivatives, sulfur, quinone imine dyes, N-substituted oxazolidinones, N, N-substituted imidazolidines, ethylene glycol dialkyl ethers, ammonium salts, pyrroles, 2-methoxy ethanol, aluminum trichloride and the like may be added. .
- halogen-containing solvents such as carbon tetrachloride and ethylene trifluoride may be further included, and carbon dioxide gas may be further included to improve high temperature storage characteristics, and PRS (Propene sultone) may be further included. And the like can be further included.
- lithium salts such as LiPF 6 , LiClO 4 , LiBF 4 , LiN (SO 2 CF 3 ) 2, and the like can be added to the highly dielectric solvent to prepare a lithium salt-containing non-aqueous electrolyte.
- the battery pack including one or more lithium secondary batteries may be used as a power source for devices requiring high temperature stability, long cycle characteristics, high rate characteristics, and the like.
- the present invention may be a small device such as a mobile phone, a notebook computer, a netbook, a tablet PC, a PDA, a digital camera, a portable navigator, a portable game machine, but is not limited thereto.
- a negative electrode mixture was prepared by mixing graphite, silicon oxide (SiO) (97: 3 by weight), conductive material (Denka black), and aqueous binder (SBR / CMC) in distilled water at a weight ratio of 97: 0.5: 2.5 as a negative electrode active material. Coated on a copper foil, followed by rolling and drying to prepare a negative electrode.
- LiCoO 2 , a conductive material (Denka black) and a binder (PVdF) were added to NMP in a weight ratio of 96.5: 2.0: 1.5, respectively, as a cathode active material, mixed to prepare a cathode mixture, coated on aluminum foil, rolled and dried.
- a positive electrode was prepared.
- An electrolyte solution containing a polyethylene membrane as a separator between the negative electrode and the positive electrode thus prepared, 1 M LiPF 6 in a solvent having EC: EMC: DEC 3: 2: 5 based on the volume ratio, and an electrolyte additive based on the total weight of the electrolyte
- a secondary battery was prepared using 1.5 wt% VC and 5 wt% FEC.
- Secondary batteries were prepared in the same manner as in Example 1, except that VC 2 wt% and FEC 5 wt% were used as the electrolyte additive.
- a secondary battery was manufactured in the same manner as in Example 1, except that 0.5 wt% of VC and 5 wt% of FEC were used as the electrolyte additive.
- Electrolyte solution containing 1M LiPF 6 in a solvent of EC: EP: DEC 4: 1: 5 based on the volume ratio, except that 2% by weight of VC and 5% by weight of FEC were used as an electrolyte additive based on the total weight of the electrolyte.
- a secondary battery was manufactured in the same manner as in Example 1, except that VC 2 wt% and FEC 1 wt% were used as the electrolyte additive.
- the secondary batteries manufactured according to Examples 1 and 2 and Comparative Example 1 were charged and discharged at 1C / 1C in a region of 2.7 to 4.35 V to change the charge and discharge capacity according to cycles and to measure the thickness of the battery. 1 is shown.
- the battery of Examples 1 and 2 has a smaller reduction rate in capacity as the charge and discharge proceeds.
- the secondary batteries manufactured according to Example 3 and Comparative Example 2 were charged and discharged at 1C / 1C in the 2.7 to 4.35 V region, and the change in charge and discharge capacity according to cycles was measured and shown in FIG. 2.
- Example 3 has a smaller reduction rate as compared with the battery of Comparative Example 2 as charging and discharging proceeds.
- the secondary battery according to the present invention uses a carbon-based material and a predetermined silicon-based compound as a negative electrode active material to increase the capacity greatly to exhibit excellent life characteristics while using an electrolyte containing a predetermined carbonate.
- the volume expansion of the cathode can be prevented.
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Abstract
Description
Claims (13)
- 양극 활물질을 포함하는 양극 합제가 집전체에 도포되어 있는 양극;음극 활물질을 포함하는 음극 합제가 집전체에 도포되어 있는 음극으로서, 탄소계 재료 및 규소계 화합물을 포함하는 음극; 및리튬염 및 비수계 용매를 포함하는 전해액으로서, 상기 전해액은 환형 카보네이트 및/또는 선형 용매를 포함하는 전해질;을 포함하는 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 탄소계 재료는 흑연(graphite)인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 규소계 화합물은 클로로실란, 알콕시실란, 아미노실란, 불소 알킬실란, 규소, 염화 규소 및 산화규소(SiO)로 이루어진 군에서 선택되는 하나 이상인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 규소계 화합물은 산화규소(SiO)인 것을 특징으로 하는 이차전지.
- 제 4 항에 있어서, 상기 산화규소(SiO)는 이산화규소(SiO2)와 비정질 실리콘이 중량비를 기준으로 1 : 1의 혼합비로 포함되어 있는 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 탄소계 재료 : 규소계 화합물의 혼합 비율은 중량비로 80 : 20 내지 99 : 1의 범위인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 탄소계 재료 : 규소계 화합물의 혼합 비율은 중량비로 90 : 10 내지 99 : 1의 범위인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 환형 카보네이트는 에틸렌 카보네이트(EC), 프로필렌 카보네이트(PC), 및 부틸렌 카보네이트(BC)로 이루어진 군에서 선택되는 하나 이상이고, 상기 선형 용매는 디메틸 카보네이트(DMC), 디에틸 카보네이트(DEC), 에틸 메틸 카보네이트(EMC), 메틸 프로피오네이트(MP) 및 에틸 프로피오네이트(EP)로 이루어진 군에서 선택되는 하나 이상인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 전해액은, 추가로 비닐렌 카보네이트(VC) 및 플루오르에틸렌 카보네이트(FEC)를 포함하는 것을 특징으로 하는 이차전지.
- 제 9 항에 있어서, 상기 비닐렌 카보네이트(VC)는 전해질 전체 중량을 기준으로 0.5 중량% 초과 내지 5 중량% 이하이고, 플루오르에틸렌 카보네이트(FEC)는 전해질 전체 중량을 기준으로 1 중량% 초과 내지 10 중량%이하의 함량인 것을 특징으로 하는 이차전지.
- 제 9 항에 있어서, 상기 비닐렌 카보네이트(VC)는 전해질 전체 중량을 기준으로 1.0 중량% 이상 내지 4.0 중량% 이하, 및 플루오르에틸렌 카보네이트(FEC)는 전해질 전체 중량을 기준으로 2 중량% 이상 내지 7 중량% 이하인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 이차전지는 리튬 이차전지인 것을 특징으로 하는 이차전지.
- 제 1 항에 따른 이차전지를 하나 이상 포함하는 것을 특징으로 하는 디바이스.
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EP14851775.8A EP3041077B1 (en) | 2013-10-07 | 2014-08-29 | Secondary battery comprising silicon-based compound |
US15/026,445 US10333142B2 (en) | 2013-10-07 | 2014-08-29 | Secondary battery including silicon-based compound |
JP2016520022A JP2016532253A (ja) | 2013-10-07 | 2014-08-29 | ケイ素系化合物を含む二次電池 |
CN201480054576.4A CN105637692B (zh) | 2013-10-07 | 2014-08-29 | 包括硅基化合物的二次电池 |
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US (1) | US10333142B2 (ko) |
EP (1) | EP3041077B1 (ko) |
JP (2) | JP2016532253A (ko) |
KR (1) | KR101569056B1 (ko) |
CN (1) | CN105637692B (ko) |
WO (1) | WO2015053478A1 (ko) |
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WO2018105701A1 (ja) * | 2016-12-08 | 2018-06-14 | 株式会社Gsユアサ | 非水電解質蓄電素子及びその製造方法 |
JP6922242B2 (ja) * | 2017-02-10 | 2021-08-18 | 株式会社Gsユアサ | 非水電解質蓄電素子及び非水電解質蓄電素子の製造方法 |
JP6822181B2 (ja) * | 2017-02-02 | 2021-01-27 | 株式会社Gsユアサ | 非水電解質蓄電素子及びその製造方法 |
JP6743755B2 (ja) | 2017-05-01 | 2020-08-19 | トヨタ自動車株式会社 | リチウムイオン二次電池の製造方法 |
KR102441813B1 (ko) * | 2017-09-18 | 2022-09-08 | 주식회사 엘지에너지솔루션 | 지그 그레이딩을 포함하는 파우치형 전지셀 제조방법 |
KR102250897B1 (ko) * | 2018-01-30 | 2021-05-10 | 주식회사 엘지화학 | 리튬 이차전지용 음극 활물질, 이를 포함하는 음극 및 상기 음극을 포함하는 리튬 이온 이차 전지 |
JP7067128B2 (ja) * | 2018-03-06 | 2022-05-16 | 三洋電機株式会社 | 非水電解質二次電池 |
JP7224787B2 (ja) * | 2018-06-11 | 2023-02-20 | エルジー エナジー ソリューション リミテッド | 特定添加剤を含んだ二次電池用非水系電解質及びこれを用いた二次電池 |
KR102439128B1 (ko) * | 2018-07-06 | 2022-09-02 | 주식회사 엘지에너지솔루션 | 리튬 이차전지용 음극, 이의 전리튬화 방법 및 이를 포함하는 리튬 이차전지 |
EP3627597B1 (en) * | 2018-09-18 | 2021-06-09 | Hyundai Motor Company | Lithium secondary battery |
JP2020098739A (ja) * | 2018-12-19 | 2020-06-25 | トヨタ自動車株式会社 | 非水電解質二次電池 |
KR102398690B1 (ko) * | 2019-01-24 | 2022-05-17 | 주식회사 엘지에너지솔루션 | 리튬 이차 전지 |
KR102501252B1 (ko) * | 2019-04-30 | 2023-02-20 | 주식회사 엘지에너지솔루션 | 리튬 이차 전지용 비수 전해질 및 이를 포함하는 리튬 이차 전지 |
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2014
- 2014-08-29 US US15/026,445 patent/US10333142B2/en active Active
- 2014-08-29 EP EP14851775.8A patent/EP3041077B1/en active Active
- 2014-08-29 CN CN201480054576.4A patent/CN105637692B/zh active Active
- 2014-08-29 WO PCT/KR2014/008056 patent/WO2015053478A1/ko active Application Filing
- 2014-08-29 JP JP2016520022A patent/JP2016532253A/ja active Pending
- 2014-08-29 KR KR1020140113832A patent/KR101569056B1/ko active IP Right Grant
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Also Published As
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JP2018088419A (ja) | 2018-06-07 |
CN105637692A (zh) | 2016-06-01 |
EP3041077A1 (en) | 2016-07-06 |
US10333142B2 (en) | 2019-06-25 |
CN105637692B (zh) | 2019-08-20 |
KR101569056B1 (ko) | 2015-11-16 |
US20160293944A1 (en) | 2016-10-06 |
JP6579530B2 (ja) | 2019-09-25 |
EP3041077B1 (en) | 2020-02-12 |
KR20150040736A (ko) | 2015-04-15 |
JP2016532253A (ja) | 2016-10-13 |
EP3041077A4 (en) | 2016-08-31 |
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