WO2016068641A1 - Batterie rechargeable au lithium-soufre et son procédé de fabrication - Google Patents

Batterie rechargeable au lithium-soufre et son procédé de fabrication Download PDF

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Publication number
WO2016068641A1
WO2016068641A1 PCT/KR2015/011558 KR2015011558W WO2016068641A1 WO 2016068641 A1 WO2016068641 A1 WO 2016068641A1 KR 2015011558 W KR2015011558 W KR 2015011558W WO 2016068641 A1 WO2016068641 A1 WO 2016068641A1
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WIPO (PCT)
Prior art keywords
lithium
sulfur battery
polymer electrolyte
gel polymer
lithium sulfur
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PCT/KR2015/011558
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English (en)
Korean (ko)
Inventor
고동욱
박은경
채종현
양두경
권기영
Original Assignee
주식회사 엘지화학
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Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to EP15856009.4A priority Critical patent/EP3206248B1/fr
Priority to CN201580060061.XA priority patent/CN107078344B/zh
Priority to US15/522,915 priority patent/US10446874B2/en
Priority claimed from KR1020150151556A external-priority patent/KR20160051652A/ko
Publication of WO2016068641A1 publication Critical patent/WO2016068641A1/fr

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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
    • 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
    • H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a lithium sulfur battery which is prevented from deterioration due to a shuttle effect and a method of manufacturing the same.
  • the present invention includes a gel polymer electrolyte configured to suppress migration of a polysulfide-based material to the negative electrode, and prevents loss of polysulfide formed on the surface of the positive electrode during charge and discharge reaction, thereby improving lifespan characteristics, and a lithium sulfur battery. It relates to a manufacturing method.
  • lithium sulfur batteries have a low discharge potential of 2V, they are attracting attention as next-generation electric vehicle batteries because of their excellent safety, low cost of active materials, and a discharge capacity of 2,600 Wh / kg.
  • Lithium sulfur batteries usually use a sulfur-based compound having a sulfur-sulfur bond as a positive electrode active material, and a carbon-based material in which an alkali metal such as lithium or a metal ion such as lithium ion is inserted and desorbed
  • a secondary battery used as a negative electrode active material an oxidation-reduction in which a reduction in the number of oxides of S occurs during the reduction reaction (discharge) and an oxidation-reduction in which the number of oxides of S decreases during the oxidation reaction (charge). Reactions are used to store and generate electrical energy.
  • lithium sulfur battery has a problem in that lithium polysulfide formed at the positive electrode is lost out of the positive electrode reaction region during the charge and discharge reaction, thereby deteriorating the life characteristics.
  • Li-S cells produce polysulfide intermediates when charged and discharged. Polysulfide elutes into the electrolyte, diffuses to the cathode surface and reacts with the cathode to produce insoluble Li 2 S and Li 2 S 2 . Due to this reaction, sulfur used as the cathode active material is lost and battery performance is reduced. This phenomenon is called a shuttle effect.
  • the lithium sulfur battery is a sulfur-sulfur chemical bond is gradually disconnected during the discharge and transition to a bond between sulfur and lithium
  • the lithium polysulfides is LiSx or negative ions dissolved in the electrolyte (LiS x -, S x 2 -) when the spread is possible, and a lithium polysulfide that diffuses from the sulfur cathode in the form of the out an electrochemical reaction area of the anode electrocatalyst in the anode
  • the amount of sulfur involved in the chemical reaction is reduced, resulting in capacity loss.
  • lithium polysulfide reacts with the lithium metal negative electrode due to the continuous charge and discharge reaction, and thus lithium sulfide (Li 2 S) is fixed on the surface of the lithium metal, thereby lowering the reaction activity and deteriorating dislocation characteristics.
  • the prior art for solving the lithium polysulfide loss problem of the lithium sulfur battery can be largely divided into three techniques.
  • First a method of delaying the outflow of the positive electrode active material by adding an additive having a property of adsorbing sulfur to the positive electrode mixture, wherein the additive used is active carbon fiber, transition metal chalcogenide, alumina, silica, etc. There is this.
  • Secondly there is a technique of surface-treating the sulfur surface with a material containing hydroxide, oxyhydroxide of the coating element, oxycarbonate of the coating element or hydroxycarbonate of the coating element.
  • the method of fabricating the conductive material into the nanostructures is complicated and expensive, and the volume occupied by the carbon nanostructures causes a loss in the volume capacity of the battery, and the nanostructures are also rolled in the cell manufacturing process. There is a risk of loss of function in the process.
  • an anode and a cathode disposed to face each other, a separator positioned between the anode and the cathode, and a gel polymer electrolyte positioned between the separator and the anode, wherein the gel polymer electrolyte is LiNO 3 It provides a lithium sulfur battery comprising a.
  • the gel polymer electrolyte may be coated on the anode surface or the separator surface.
  • the gel polymer electrolyte may include a polymer matrix and an organic solvent and a lithium salt supported on the polymer matrix.
  • the polymer matrix may be a polymer in which trimethylolpropane ethoxylate triacrylate monomer is polymerized.
  • a monomer, an organic solvent, a lithium salt, and LiNO 3 are mixed, and the mixture is coated on the cathode or the separator and cured to form a gel polymer electrolyte positioned between the separator and the anode. It provides a lithium sulfur battery manufacturing method comprising the step of manufacturing.
  • the monomer may be trimethylolpropane ethoxylate triacrylate.
  • the solvent may be any one selected from the group consisting of TEGDME (Triethylene glycol dimethyl ether), DOL (Dioxolane), DME (Dimethoxyethane) and a mixed solution thereof.
  • TEGDME Triethylene glycol dimethyl ether
  • DOL Dioxolane
  • DME Dimethoxyethane
  • the lithium salt may be lithium bis-trifluoromethanesulfonimide (LiTFSI).
  • the present invention relates to a lithium sulfur battery which is prevented from deterioration due to a shuttle effect, and a method for manufacturing the same, including a gel polymer electrolyte configured to suppress migration of a polysulfide-based material to the negative electrode, and thus a charge and discharge reaction.
  • a gel polymer electrolyte configured to suppress migration of a polysulfide-based material to the negative electrode, and thus a charge and discharge reaction.
  • FIG. 1 is a schematic cross-sectional view showing a lithium sulfur battery in which a gel polymer layer of the present invention is formed between an anode and a separator.
  • FIGS. 2 to 4 are graphs showing the results of charge and discharge experiments of the lithium sulfur batteries prepared in Example 1 and Comparative Example 1 of the present invention, and FIGS. 2 to 4 show results at 1 cycle, 2 cycles, and 12 cycles, respectively.
  • FIG. 1 is a schematic cross-sectional view showing a lithium sulfur battery in which a gel polymer layer of the present invention is formed between an anode and a separator.
  • a lithium sulfur battery according to an exemplary embodiment of the present invention is interposed between a positive electrode 120 and a negative electrode 150 disposed between the positive electrode 120 and the negative electrode 150.
  • the cathode 120 may include a cathode current collector 121 and a cathode active material layer 122 disposed on the cathode current collector 121 and including a cathode active material and optionally a conductive material and a binder. have.
  • the cathode current collector 121 it may be preferable to use foamed aluminum, foamed nickel, and the like, which have excellent conductivity.
  • the cathode active material layer 122 may include elemental sulfur (S8), a sulfur-based compound, or a mixture thereof as the cathode active material.
  • the positive electrode active material layer 122 is a conductive material for allowing electrons to move smoothly in the positive electrode 120 together with the positive electrode active material, and the binding force between the positive electrode active material or between the positive electrode active material and the positive electrode current collector 110. It may further include a binder for increasing the.
  • the conductive material may be a carbon-based material such as carbon black, acetylene black, or ketjen black; Or it may be a conductive polymer such as polyaniline, polythiophene, polyacetylene, polypyrrole, the conductive material may be preferably contained in 5 to 20% by weight based on the total weight of the positive electrode active material layer. If the content of the conductive material is less than 5% by weight, the conductivity improvement effect according to the use of the conductive material is insignificant, whereas if the content of more than 20% by weight, the content of the positive electrode active material is relatively small, there is a fear that the capacity characteristics.
  • the binder may be poly (vinyl acetate), polyvinyl alcohol, polyethylene oxide, polyvinylpyrrolidone, alkylated polyethylene oxide, crosslinked polyethylene oxide, polyvinyl ether, poly (methyl methacrylate), poly Vinylidene fluoride, copolymer of polyhexafluoropropylene and polyvinylidene fluoride (trade name: Kynar), poly (ethyl acrylate), polytetrafluoroethylene, polyvinylchloride, polyacrylonitrile, polyvinylpyridine , Polystyrene, derivatives thereof, blends, copolymers and the like can be used.
  • the binder may be preferably contained in 5 to 20% by weight based on the total weight of the positive electrode active material layer.
  • the content of the binder is less than 5% by weight, the effect of improving the binding strength between the positive electrode active material or between the positive electrode active material and the current collector according to the use of the binder is insignificant, whereas when the content of the binder exceeds 20% by weight, the content of the positive electrode active material is relatively small. There is a risk of deterioration of characteristics.
  • the positive electrode 120 as described above may be manufactured according to a conventional method, and specifically, a positive electrode active material layer forming composition prepared by mixing the positive electrode active material, the conductive material, and the binder on an organic solvent, on the positive electrode current collector. After application, it can be prepared by drying and optionally rolling.
  • the organic solvent the cathode active material, the binder, and the conductive material may be uniformly dispersed, and it is preferable to use one that is easily evaporated. Specifically, acetonitrile, methanol, ethanol, tetrahydrofuran, water, isopropyl alcohol, etc. are mentioned.
  • the negative electrode 150 is a negative electrode active material, a material capable of reversibly intercalating or deintercalating lithium ions, and can react with lithium ions to form a reversible lithium-containing compound And a material selected from the group consisting of lithium metal and lithium alloy.
  • any carbon-based negative electrode active material generally used in the lithium sulfur battery may be used, and specific examples thereof include crystalline carbon, Amorphous carbons or these may be used together.
  • a representative example of a material capable of reacting with lithium ions to reversibly form a lithium-containing compound may include, but is not limited to, tin oxide (SnO 2 ), titanium nitrate, silicon (Si), and the like.
  • the alloy of the lithium metal may be an alloy of lithium with a metal of Si, Al, Sn, Pb, Zn, Bi, In, Mg, Ga, or Cd.
  • the negative electrode 150 may optionally further include a binder together with the negative electrode active material.
  • the binder acts as a paste for the negative electrode active material, mutual adhesion between the active materials, adhesion between the active material and the current collector, and a buffering effect on the expansion and contraction of the active material.
  • the binder is the same as described above.
  • the negative electrode 150 may further include a negative electrode current collector 152 for supporting the negative electrode active material layer 151 including the negative electrode active material and the binder.
  • the negative electrode current collector 152 may be specifically selected from the group consisting of copper, aluminum, stainless steel, titanium, silver, palladium, nickel, alloys thereof, and combinations thereof.
  • the stainless steel may be surface treated with carbon, nickel, titanium, or silver, and an aluminum-cadmium alloy may be used as the alloy.
  • calcined carbon, a nonconductive polymer surface-treated with a conductive material, or a conductive polymer may be used.
  • the cathode 150 may be a thin film of lithium metal.
  • the separator 140 is a physical separator having a function of physically separating an electrode, and can be used without particular limitation as long as it is generally used as a separator in a lithium sulfur battery. It is desirable to have low resistance to migration and excellent electrolyte-moisture capability.
  • a porous polymer film made of a polyolefin-based polymer such as ethylene homopolymer, propylene homopolymer, ethylene / butene copolymer, ethylene / hexene copolymer and ethylene / methacrylate copolymer may be used alone. It may be used as a lamination or or a conventional porous non-woven fabric, for example, a non-woven fabric made of glass fibers, polyethylene terephthalate fibers of high melting point, etc. may be used, but is not limited thereto.
  • the lithium sulfur battery may further include an electrolyte immersed in the separator 140.
  • the electrolyte may include an organic solvent and a lithium salt.
  • the organic solvent may be a polar solvent such as an aryl compound, bicyclic ether, acyclic carbonate, sulfoxide compound, lactone compound, ketone compound, ester compound, sulfate compound, sulfite compound and the like.
  • a polar solvent such as an aryl compound, bicyclic ether, acyclic carbonate, sulfoxide compound, lactone compound, ketone compound, ester compound, sulfate compound, sulfite compound and the like.
  • the organic solvent may be 1,2-dimethoxyethane, 1,2-diethoxyethane, 1,2-dibutoxyethane, dioxolane (Dioxolane, DOL), 1,4-dioxane, tetrahydrofuran , 2-methyltetrahydrofuran, dimethyl carbonate (DMC), diethyl carbonate (DEC), ethyl methyl carbonate (EMC), methyl propyl carbonate (MPC), ethyl propyl carbonate, dipropyl carbonate, butyl ethyl carbonate, ethyl propano EP, toluene, xylene, dimethyl ether (DME), diethyl ether, triethylene glycol monomethyl ether (TEGME), diglyme, tetraglyme, hexamethyl phosphoric tree Amide (hexamethyl phosphoric triamide), gamma butyrolactone (GBL), acetonitrile
  • a mixed solvent of triethylene glycol monomethyl ether / dioxolane / dimethyl ether may be more preferable.
  • the lithium salt may be used without particular limitation as long as it is a compound capable of providing lithium ions used in a lithium secondary battery.
  • the lithium salt is LiPF 6 , LiClO 4 , LiAsF 6 , LiBF 4 , LiSbF 6 , LiAl0 4 , LiAlCl 4 , LiCF 3 SO 3 , LiC 4 F 9 SO 3 , LiN (C 2 F 5 SO 3 ) 2 LiN (C 2 F 5 SO 2 ) 2 (Lithium bis (perfluoroethylsulfonyl) imide, BETI), LiN (CF 3 SO 2 ) 2 (Lithium bis (Trifluoromethanesulfonyl) imide, LiTFSI), LiN (C a F 2a + 1 SO 2 ) (C b F 2b + 1 SO 2 ) (where a and b are natural numbers, preferably 1 ⁇ a ⁇ 20 and 1 ⁇ b ⁇ 20), lithium poly [4,4
  • the lithium salt may be preferably included in 10 to 35% by weight based on the total weight of the electrolyte. If the content of the lithium salt is less than 10% by weight, the conductivity of the electrolyte is lowered and the performance of the electrolyte is lowered. When the content of the lithium salt is more than 35% by weight, the viscosity of the electrolyte is increased to reduce the mobility of lithium ions.
  • the lithium sulfur battery includes a gel polymer electrolyte 130 positioned between the separator 140 and the positive electrode 120.
  • the gel polymer electrolyte 130 is supported by the electrolyte in a polymer matrix.
  • the polymer matrix is not particularly limited, but may be a polymer resin including at least one or more of a polyethylene oxide-based polymer compound, a polyorganosiloxane chain, or a polyoxyalkylene chain, preferably trimethylolpropane. It may be prepared by polymerizing the toxyl triacrylate monomer. When the polymer of the trimethylolpropane ethoxylate triacrylate monomer is used as the polymer matrix, the ion dissociation ability and the impregnation ability of the electrolyte of the polymer matrix are good, thereby improving ion conductivity.
  • the trimethylolpropane ethoxylate triacrylate may have a weight average molecular weight of 200 to 1000 g / mol, preferably 300 to 700 g / mol.
  • weight average molecular weight of the trimethylolpropane ethoxylate triacrylate is less than 200g / mol may be reduced ionic conductivity, if it exceeds 1000g / mol physical inhibitory effect can be reduced.
  • the electrolyte supported in the gel polymer electrolyte 130 may include an organic solvent and a lithium salt. Since the description of the organic solvent and the lithium salt is the same as described above, repeated description is omitted.
  • the electrolyte further comprises LiNO 3 .
  • the electrolyte may improve the shuttle suppression effect.
  • the electrolyte may include 1 to 50% by weight of LiNO 3 based on the total weight of the electrolyte, preferably 1.5 to 10% by weight. When the content of LiNO 3 is less than 1% by weight, the shuttle inhibitory effect may not appear, and when the content of LiNO 3 exceeds 50% by weight, side reactions due to decomposition of LiNO 3 may occur.
  • the gel polymer electrolyte 130 may be prepared by mixing the monomer, the organic solvent, the lithium salt, and the LiNO 3 forming the polymer matrix, and curing the mixture. The curing may be thermal curing or photo curing. To this end, the mixture may further include a heat curing agent or a light curing agent.
  • the mixture may include the organic solvent and the lithium salt in a weight ratio of 10: 1 to 1: 1, preferably in a weight ratio of 4: 1 to 2: 1. In both cases where the weight ratio of the organic solvent is less than 10: 1 and more than 1: 1, the ionic conductivity may be reduced.
  • the mixture may include the organic solvent including the lithium salt and the monomer in a weight ratio of 99: 1 to 10:90, preferably in a weight ratio of 95: 5 to 70:30.
  • the weight ratio of the monomer is less than 99: 1, the shuttle inhibitory effect may be reduced, and when it exceeds 10:90, the battery capacity may be reduced due to the decrease in ion conductivity.
  • the gel polymer electrolyte 130 may be interposed between the separator 140 and the anode 120 after the mixture is prepared as an independent film, and the mixture may be disposed on the separator 140 or the anode 120. It may be prepared by curing after coating.
  • the method of coating the mixture on the separator 140 or the anode 120 is not particularly limited, but the screen printing method, the spray coating method, the coating method using a doctor blade, the gravure coating method, the dip coating method, and the silk screen method , Painting, coating using a slit die, spin coating, roll coating, transfer coating method and the like can be used.
  • the curing may be thermal curing or light curing, in the case of the thermal curing, the curing may be made at 60 to 200 °C, preferably at 60 to 150 °C. If the curing temperature is less than 60 °C may not be sufficiently cured to reduce the physical shuttle inhibitory effect, if it exceeds 150 °C may be reduced ionic conductivity and capacity due to volatilization of the impregnated electrolyte.
  • Sulfur (average particle size: 40 ⁇ m) was first prepared using a ball mill with Super P in ethanol.
  • the composite, conductive material, binder, and mixer were mixed to prepare a composition for forming a cathode active material layer.
  • carbon black was used as the conductive material
  • SBR was used as the binder
  • the mixing ratio was 75: 20: 5 in the weight ratio of the composite: conductive material: binder.
  • the prepared positive electrode active material layer-forming composition was applied to an aluminum current collector and then dried to prepare a positive electrode (energy density of positive electrode: 1.0 mAh / cm 2).
  • a lithium metal thin film was prepared as a negative electrode.
  • Sulfur (average particle size: 40 ⁇ m) was first prepared using a ball mill with Super P in ethanol.
  • the composite, conductive material, binder, and mixer were mixed to prepare a composition for forming a cathode active material layer.
  • carbon black was used as the conductive material
  • SBR was used as the binder
  • the mixing ratio was 75: 20: 5 in the weight ratio of the composite: conductive material: binder.
  • the prepared positive electrode active material layer-forming composition was applied to an aluminum current collector and then dried to prepare a positive electrode (energy density of positive electrode: 1.0 mAh / cm 2).
  • a lithium metal thin film was prepared as a negative electrode.
  • an electrolyte was injected into the case to prepare a lithium sulfur battery.
  • An electrolyte added in weight ratio was used.
  • the ion conductivity of the electrolyte prepared in the lithium sulfur batteries prepared in Examples 1 to 4 was manufactured by using a coin cell using SUS as an electrode, and measured by electrochemical impedance spectroscopy (EIS), and the results were as follows. Table 1 shows.
  • Organic solvent monomer weight ratio
  • Lithium salt Organic solvent weight ratio Ion conductivity
  • Example 1 90:10 1: 3 1.1 ⁇ 10 -3 S / cm
  • Example 2 85:15 1: 3 4.1 ⁇ 10 -4 S / cm
  • Example 3 80:20 1: 3 6.6 ⁇ 10 -5 S / cm
  • Example 4 85:15 1: 2 1.8 ⁇ 10 -4 S / cm
  • Example 1 Referring to Table 1, it can be seen that the ion conductivity of the electrolyte prepared in Example 1 is the most excellent.
  • the lithium sulfur battery to which the gel polymer electrolyte of the present invention is applied has an improved coulombic efficiency, initial discharge capacity, reproducibility, etc. due to the physical inhibitory effect of the shuttle reaction. have.
  • the present invention relates to a lithium sulfur battery which is prevented from deterioration due to a shuttle effect and a method of manufacturing the same.
  • the lithium sulfur battery includes a gel polymer electrolyte configured to suppress migration of a polysulfide-based material to the negative electrode, thereby preventing loss of polysulfide formed on the surface of the positive electrode during charge and discharge reaction, thereby improving lifespan characteristics.

Abstract

La présente invention concerne une batterie au lithium-soufre, comprenant : une anode et une cathode qui sont disposées en regard l'une de l'autre ; une membrane de séparation positionnée entre l'anode et la cathode ; et un électrolyte polymère en gel positionné entre la membrane de séparation et la cathode, l'électrolyte polymère en gel comprenant LiNO3. La présente invention concerne une batterie au lithium-soufre qui prévient une dégénérescence par effet de navette, et la batterie au lithium-soufre comprend un électrolyte polymère en gel configuré pour empêcher le transfert d'un matériau à base de polysulfure à l'anode, de manière que la batterie au lithium-soufre puisse empêcher une perte du polysulfure produit sur la surface de la cathode au moment de réactions de charge et de décharge, moyennant quoi les caractéristiques de durée de vie de la batterie au lithium-soufre peuvent être améliorées.
PCT/KR2015/011558 2014-10-31 2015-10-30 Batterie rechargeable au lithium-soufre et son procédé de fabrication WO2016068641A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP15856009.4A EP3206248B1 (fr) 2014-10-31 2015-10-30 Batterie rechargeable au lithium-soufre et son procédé de fabrication
CN201580060061.XA CN107078344B (zh) 2014-10-31 2015-10-30 锂硫电池及其制造方法
US15/522,915 US10446874B2 (en) 2014-10-31 2015-10-30 Lithium sulfur battery and method for producing same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2014-0150445 2014-10-31
KR20140150445 2014-10-31
KR10-2015-0151556 2015-10-30
KR1020150151556A KR20160051652A (ko) 2014-10-31 2015-10-30 리튬 황 전지 및 이의 제조 방법

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108281659A (zh) * 2018-01-18 2018-07-13 中国计量大学 硫正极和锂硫电池
WO2020009313A1 (fr) * 2018-07-04 2020-01-09 동국대학교 산학협력단 Système de batterie secondaire comprenant une électrode à base de sulfure de molybdène ayant une propriété électrochimique améliorée par co-insertion d'un solvant à électrolyte de lithium

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Publication number Priority date Publication date Assignee Title
KR100402997B1 (ko) * 1995-05-08 2004-04-29 다이소 가부시키가이샤 고분자고체전해질
KR20060125852A (ko) * 2004-01-06 2006-12-06 싸이언 파워 코포레이션 리튬 황 전지를 위한 전해질
KR20060125853A (ko) * 2004-01-06 2006-12-06 싸이언 파워 코포레이션 리튬 황 전지를 위한 전해질
KR20110136740A (ko) * 2010-06-14 2011-12-21 주식회사 엘지화학 전기화학소자용 전해질, 그 제조방법 및 이를 구비한 전기화학소자

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100402997B1 (ko) * 1995-05-08 2004-04-29 다이소 가부시키가이샤 고분자고체전해질
KR20060125852A (ko) * 2004-01-06 2006-12-06 싸이언 파워 코포레이션 리튬 황 전지를 위한 전해질
KR20060125853A (ko) * 2004-01-06 2006-12-06 싸이언 파워 코포레이션 리튬 황 전지를 위한 전해질
KR20110136740A (ko) * 2010-06-14 2011-12-21 주식회사 엘지화학 전기화학소자용 전해질, 그 제조방법 및 이를 구비한 전기화학소자

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108281659A (zh) * 2018-01-18 2018-07-13 中国计量大学 硫正极和锂硫电池
WO2020009313A1 (fr) * 2018-07-04 2020-01-09 동국대학교 산학협력단 Système de batterie secondaire comprenant une électrode à base de sulfure de molybdène ayant une propriété électrochimique améliorée par co-insertion d'un solvant à électrolyte de lithium

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