WO2025147124A1 - 복합 고분자 전해질, 이의 제조방법 및 이를 포함하는 전고체 전지 - Google Patents
복합 고분자 전해질, 이의 제조방법 및 이를 포함하는 전고체 전지 Download PDFInfo
- Publication number
- WO2025147124A1 WO2025147124A1 PCT/KR2025/000100 KR2025000100W WO2025147124A1 WO 2025147124 A1 WO2025147124 A1 WO 2025147124A1 KR 2025000100 W KR2025000100 W KR 2025000100W WO 2025147124 A1 WO2025147124 A1 WO 2025147124A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer electrolyte
- group
- composite polymer
- lithium
- ion conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing heteroatoms
- C08F12/16—Halogens
- C08F12/20—Fluorine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing heteroatoms
- C08F12/22—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing heteroatoms
- C08F12/26—Nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing heteroatoms
- C08F12/30—Sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by heteroatoms or groups containing heteroatoms
- C08F212/30—Sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/106—Esters of polycondensation macromers
- C08F222/1063—Esters of polycondensation macromers of alcohol terminated polyethers
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/381—Alkaline or alkaline earth metals elements
- H01M4/382—Lithium
-
- 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
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
-
- 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
- H01M2300/0088—Composites
- H01M2300/0091—Composites in the form of mixtures
-
- 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 single-ion conductive composite polymer electrolyte, a process for preparing the same, and an all-solid-state battery comprising the same.
- Organic liquid electrolytes commonly used in lithium-ion secondary batteries have problems such as flammability, corrosiveness, thermal instability, high-voltage instability, and leakage, and are problematic because they can cause ignition or explosion when the battery behaves abnormally.
- Polymer electrolytes are a type of solid electrolyte, and are more stable than liquid electrolytes because they are free from the risk of electrolyte leakage or flammable gasification in the event of abnormal behavior. In addition, since they do not leak, they can be used to make thin, light, and flexible batteries that replace solid external packaging materials, and they are gaining attention because they have many advantages such as high energy density, low volatility, and reactivity.
- the purpose of the present invention is to provide a composite polymer electrolyte having excellent mechanical strength as well as ionic conductivity and a method for producing the same.
- the present invention also aims to apply the composite polymer electrolyte as described above to an all-solid-state battery using lithium metal or a lithium alloy as an anode to suppress lithium dendrite generation and improve life characteristics.
- One aspect of the present invention relates to a composite polymer electrolyte, comprising: a single-ion conductive polymer polymerized from a mixed solution containing a single-ion conductive monomer of the following chemical formula 1 and a cross-linking agent; a cyclic carbonate; and inorganic particles; wherein the molar ratio between the cyclic carbonate and lithium ions contained in the single-ion conductive polymer is 5 or more:
- the single ion conductive monomer of the chemical formula 1 may be characterized by being at least one selected from the group consisting of the following chemical formulas A to E:
- the crosslinking agent may be characterized by having a number average molecular weight (Mn) of 100 to 10,000 g/mol.
- the composite polymer electrolyte of the present invention may be characterized by containing 100 to 1000 parts by weight of the cyclic carbonate relative to 100 parts by weight of the single ion conductive polymer.
- composition comprising Compound A may comprise other compounds in addition to A.
- the term “comprises” also encompasses, as a specific embodiment thereof, the more restrictive meanings of “consisting essentially/essentially of” and “consisting of,” so that, for example, “a composition comprising Compound A” may also consist (essentially/essentially) of Compound A.
- a layer is located “on” or “between” another layer, this includes not only cases where the layer is in contact with another layer, but also cases where another layer or material, etc., exists between the two layers.
- room temperature refers to a natural temperature that is not heated or cooled, and may mean, for example, a temperature within a range of about 10°C to 30°C, about 23°C, or about 25°C.
- the unit of temperature in this specification is °C.
- the property is measured at normal pressure, i.e., atmospheric pressure (approximately 1 atm).
- the first aspect of the present invention relates to a composite polymer electrolyte.
- the composite polymer electrolyte of the present invention may include, for example, a single ion conductive polymer polymerized from a mixed solution containing a single ion conductive monomer of the following chemical formula 1 and a cross-linking agent; a cyclic carbonate; and/or an inorganic particle;
- arylene group is a functional group derived primarily from benzene or a related aromatic structure.
- arylene groups include, but are not limited to, a phenylene group, a biphenylene group, a terphenylene group, a quaterphenylene group, a naphthalenylene group, an anthracenylene group, a phenanthrenylene group, a pyrenylene group, or a benzopyrenylene group, and the like.
- alkyl group by itself or as part of another substituent, unless otherwise stated, means a straight or branched chain monovalent hydrocarbon having the indicated number of carbon atoms (i.e., C 1-10 means 1 to 10 carbons).
- halogen includes, but is not limited to, fluoro, chloro, bromo, or iodo.
- the inventors of the present invention can manufacture a composite polymer electrolyte without evaporation of the carbonate by assembling a battery by impregnating a film formed by polymerizing a single ion conductive polymer, as in the method for manufacturing a composite polymer electrolyte described below, and as a result, the molar ratio between the cyclic carbonate and the lithium ion included in the single ion conductive polymer could be controlled to 5 or more in the finally manufactured composite polymer electrolyte.
- the composite polymer electrolyte of the present invention may be characterized by, for example, containing 100 to 1,000 parts by weight of the cyclic carbonate relative to 100 parts by weight of the single ion conductive polymer.
- the composite polymer electrolyte of the present invention may be characterized by containing 110 parts by weight or more, 120 parts by weight or more, 130 parts by weight or more, 140 parts by weight or more, 150 parts by weight or more, or 160 parts by weight or more of the cyclic carbonate relative to 100 parts by weight of the single ion conductive polymer, or 900 parts by weight or less, 800 parts by weight or less, 700 parts by weight or less, 600 parts by weight or less, 500 parts by weight or less, or 400 parts by weight or less.
- the method for producing the composite polymer electrolyte of the present invention may further include, for example, a step of liquefying the cyclic carbonate.
- a step of liquefying the cyclic carbonate can be performed when the cyclic carbonate is in a solid state at room temperature, and when it is in a liquid state, it can be used directly without the liquefying step.
- the above positive electrode includes, for example, a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer may include a positive electrode active material, a binder, a conductive material, and/or a solid electrolyte.
- A is Ni, Co, Mn, or a combination thereof
- B is Al, Ni, Co, Mn, Cr, Fe, Mg, Sr, V, a rare earth element, or a combination thereof
- D is O, F, S, P, or a combination thereof
- E is Co, Mn, or a combination thereof
- F is F, S, P, or a combination thereof
- G is Al, Cr, Mn, Fe, Mg, La, Ce, Sr, V, or a combination thereof
- Q is Ti, Mo, Mn, or a combination thereof
- I is Cr, V, Fe, Sc, Y, or a combination thereof
- J may be V, Cr, Mn, Co, Ni, Cu, or a combination thereof.
- a compound having a coating layer added to the surface of such a compound may be used as the positive electrode active material, or a mixture of the above-mentioned compound and the compound having a coating layer added thereto may be used.
- the coating layer added to the surface of such a compound may contain, for example, a lithium ion conductive oxide.
- the lithium ion conductive oxide may include, but is not limited to, LiNbO 3 , Li 4 Ti 5 O 12 , Li 3 PO 4 , etc.
- the compound forming the coating layer may be amorphous or crystalline.
- the method for forming the coating layer may include, but is not limited to, spray coating, dipping, etc., but may be selected without limitation within a range that does not adversely affect the properties of the positive electrode active material.
- the binder can be, for example, an aqueous binder, an organic binder, or a combination thereof.
- the binder can be, for example, a polymer including polyvinyl alcohol, carboxymethyl cellulose, hydroxypropyl cellulose, diacetyl cellulose, polyvinylidene fluoride, polyvinyl chloride, carboxylated polyvinyl chloride, polyvinyl fluoride, ethylene oxide, polyvinyl pyrrolidone, polyurethane, polytetrafluoroethylene, polyvinylidene, fluoride, polyethylene, polypropylene, styrene-butadiene rubber, acrylated styrene-butadiene rubber, epoxy resin, nylon, or a combination thereof.
- the aqueous binder can be, for example, styrene butadiene rubber, carboxymethyl cellulose, or a combination thereof.
- organic binder for example, polytetrafluoroethylene, polyvinylidene fluoride, or a combination thereof may be used, but is not limited thereto, and known binders may be used without limitation as long as they do not impede the purpose of the present invention.
- the conductive material may be, for example, graphite, carbon black, acetylene black, Ketjen black, carbon fiber, carbon nanotube, or metal powder, but is not limited thereto, and any conductive material that can be introduced into an all-solid-state battery may be used without limitation as long as it does not impede the purpose of the present invention.
- the above solid electrolyte membrane may include, for example, a composite polymer electrolyte having the characteristics described above.
- the all-solid-state battery of the present invention may have excellent life characteristics and performance, etc. by including the composite polymer electrolyte as described above in the solid electrolyte membrane.
- the above solid electrolyte membrane may further include, for example, a binder.
- a binder the binder included in the above-described positive electrode active material layer may be exemplified.
- the thickness of the above solid electrolyte membrane is not particularly limited, but may typically be within the range of 0.1 ⁇ m to 500 ⁇ m.
- the above negative electrode includes, for example, a negative electrode active material layer, and the negative electrode active material layer may include a negative electrode active material, a binder, a conductive material, and/or a solid electrolyte.
- Matters regarding the solid electrolyte, conductive material, and/or binder, etc. included in the above-described negative electrode active material layer may be one of the types included in the above-described positive electrode or solid electrolyte membrane, but are not limited thereto, and any solid electrolyte, conductive material, and/or binder, etc. used in the relevant technical field may be possible.
- the solid electrolyte, conductive material, and/or binder included in the negative electrode active material layer may be the same as or different from the solid electrolyte, conductive material, and/or binder included in the positive electrode active material layer, solid electrolyte membrane, etc.
- the above-described negative electrode may further include, for example, a negative electrode current collector.
- the negative electrode current collector may be a known metal that can be used as a current collector of an all-solid-state battery.
- the negative electrode current collector may be, for example, a material that does not form an alloy or compound with lithium.
- the negative electrode current collector may be, for example, selected from the group consisting of copper, nickel, aluminum, vanadium, gold, platinum, magnesium, iron, titanium, cobalt, chromium, zinc, germanium, indium, and stainless steel, but is not limited thereto, and any material that is used as an electrode current collector in the relevant technical field as long as it does not impede the purpose of the present invention may be used.
- the negative electrode current collector may be composed of one kind of the above-described metal, or may be composed of an alloy or a coating material of two or more kinds of metals.
- the negative electrode current collector may be used in various forms, for example, a film, a sheet, a foil, a net, a porous body, a foam, a non-woven fabric, etc.
- a composite polymer electrolyte was manufactured by the following method so that the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and cyclic carbonate included in the manufactured composite polymer electrolyte was 13:4:52:31.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and cyclic carbonate included in the manufactured composite polymer electrolyte was 10:3:38:49. At this time, Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the cyclic carbonate to the mole number of the ion was 18.9.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that ZnO having an average particle diameter of 50 nm was used instead of LLZTO having an average particle diameter of 1 ⁇ m as an inorganic particle, and that the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and cyclic carbonate included in the manufactured composite polymer electrolyte was set to 12:4:54:30.
- Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the cyclic carbonate to the mole number of the ion was 8.9.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that SiO 2 having an average particle diameter of 200 nm was used instead of LLZTO having an average particle diameter of 1 ⁇ m as an inorganic particle, and that the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and cyclic carbonate included in the manufactured composite polymer electrolyte was set to 18:6:37:39.
- Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the cyclic carbonate to the mole number of the ion was 7.7.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and cyclic carbonate included in the manufactured composite polymer electrolyte was 15:4.5:59.5:21. At this time, Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the cyclic carbonate to the mole number of the ion was 5.2.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that PC (propylene carbonate) was introduced instead of EC as a cyclic carbonate, and the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and cyclic carbonate included in the manufactured composite polymer electrolyte was set to 13:4:52:31.
- Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the cyclic carbonate to the mole number of the ion was 7.4.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that ZnO having an average particle diameter of 50 nm was used instead of LLZTO having an average particle diameter of 1 ⁇ m as an inorganic particle, and that the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and cyclic carbonate included in the manufactured composite polymer electrolyte was 14.2:4.3:61.2:20.3.
- Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the cyclic carbonate to the mole number of the ion was 5.2.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that SiO 2 having an average particle diameter of 200 nm was used instead of LLZTO having an average particle diameter of 1 ⁇ m as an inorganic particle, and that the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and cyclic carbonate included in the manufactured composite polymer electrolyte was set to 21:6.5:43:29.5. At this time, Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the cyclic carbonate to the mole number of the ion was 5.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that the weight ratio of the single ion conductive monomer, crosslinker, and inorganic particles included in the manufactured composite polymer electrolyte was 19:6:75 without introducing a cyclic carbonate. At this time, Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the cyclic carbonate to the mole number of the ion was 0.
- a composite polymer electrolyte was obtained in the same manner as in Example 1, except that EMC (Ethyl methyl carbonate) was introduced as a chain-shaped carbonate instead of a cyclic carbonate, and the weight ratio of the single ion conductive monomer, crosslinker, inorganic particles, and chain-shaped carbonate included in the manufactured composite polymer electrolyte was made 13:4:54:29.
- Li included in the single ion conductive monomer of the manufactured composite polymer electrolyte The ratio of the mole number of the chain carbonate to the mole number of the ion was 6.6.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Emergency Medicine (AREA)
- Secondary Cells (AREA)
- Conductive Materials (AREA)
Abstract
Description
Claims (15)
- 하기 화학식 1의 단이온 전도성 단량체 및 가교결합제를 포함하는 혼합 용액으로부터 중합된 단이온 전도성 고분자; 환형 카보네이트; 및 무기입자; 를 포함하고,상기 단이온 전도성 고분자에 포함된 리튬 이온에 대한 상기 환형 카보네이트 간 몰 비율이 5 이상인 것을 특징으로 하는, 복합 고분자 전해질:[화학식 1][화학식 2]상기 식에서,Q1은 C6-12 아릴렌 기 또는 화학식 2로 표시되는 작용기이고, 이때 n 은 1 내지 10의 정수이고,R1은 수소 또는 C1-3알킬 기이고,Q2는 할로겐 기 또는 할로겐 기로 치환된 C1-3알킬 기이며,Q3는 =O 또는 =N-S(O)2-R2이며, 상기 R2는 할로겐 기 또는 할로겐 기로 치환된 C1-3알킬 기이다.
- 제 1 항에 있어서, 상기 무기 입자가 상기 무기 입자가 리튬-란탄-지르코늄-탄탈 산화물(Lithium Lanthanum Zirconium Tantalum Oxide; LLZTO), 리튬-란탄-지르코늄 산화물(Lithium Lanthanum Zirconium Oxide; LLZO), 리튬-란탄-탄탈 산화물(Lithium Lanthanum Tantalum Oxide; LLTaO), 리튬-란탄-티타네이트(Lithium Lanthanum Titanate; LLT), 리튬-인-옥시나이트라이드(Lithium Phosphorous Oxynitride; LiPON), 리튬 오르토실리케이트(Lithium Orthosilicate; Li4SiO4), 리튬 보레이트(Lithium Borate; Li3BO3), 리튬-알루미늄-게르마늄-인산염(Lithium Aluminum Germanium Phosphate; LAGP), 리튬-알루미늄-티타늄-인산염(Lithium Aluminum Titanium Phosphate; LATP), 리튬-란탄-지르코늄-나이오븀 산화물(Lithium Lanthanum Zirconium Niobium Oxide; LLZ-Nb) 및 리튬 오르토실리케이트-리튬 인산염 복합체(Lithium Orthosilicate-Lithium Phosphate Composite; Li4SiO4-Li3PO4)로 이루어진 군에서 선택된 1종 이상의 활성 무기입자이거나, 또는 산화아연(Zinc oxide; ZnO), 이산화규소(Silicon Dioxide; SiO2), 산화알루미늄(Aluminum Oxide; Al2O3) 및 이산화티타늄(Titanium Dioxide; TiO2) 로 이루어진 군에서 선택된 1종 이상의 비활성 무기입자인 것을 특징으로 하는, 복합 고분자 전해질.
- 제 3 항에 있어서, 상기 활성 무기입자의 입자크기가 1.5㎛ 이하이고, 비활성 무기입자의 입자크기가 500 nm 이하인 것을 특징으로 하는, 복합 고분자 전해질.
- 제 1 항에 있어서, 상기 가교결합제는 폴리에틸렌글리콜 다이아크릴레이트(Polyethylene Glycol Diacrylate; PEGDA), 폴리에틸렌글리콜 다이메타크릴레이트(Polyethylene Glycol Dimethacrylate; PEGDMA), 폴리에틸렌글리콜 모노에틸에터 아크릴레이트(Polyethylene Glycol Monoethyl Ether Acrylate; PEGMEA), 폴리에틸렌글리콜 모노메타크릴레이트(Polyethylene Glycol Monomethacrylate; PEGMEMA), 펜타에리트리톨 트리아크릴레이트(Pentaerythritol Triacrylate; PETA), 1,6-헥산다이올 다이아크릴레이트(1,6-Hexanediol Diacrylate; HDDA), 트라이메틸올프로판 트리아크릴레이트(Trimethylolpropane Triacrylate; TMPTA), 트라이메틸올프로판 트라이메타크릴레이트(Trimethylolpropane Trimethacrylate; TMPTMA) 및 에톡실화 트라이메틸올프로판 트리아크릴레이트(Ethoxylated Trimethylolpropane Triacrylate; ETPTA) 로 이루어진 군에서 선택된 1종 이상인 것을 특징으로 하는, 복합 고분자 전해질.
- 제 5 항에 있어서, 상기 가교결합제의 수평균분자량(Mn)이 100 내지 10000 g/mol 인 것을 특징으로 하는, 복합 고분자 전해질.
- 제 1 항에 있어서, 상기 환형 카보네이트가 에틸렌 카보네이트(Ethylene Carbonate; EC), 프로필렌 카보네이트(Propylene Carbonate; PC), 부틸렌 카보네이트(Butylene Carbonate; BC), 비닐렌 카보네이트(Vinylene Carbonate; VC) 및 γ-부티로락톤(γ-Butyrolactone)으로 이루어진 군에서 선택된 1종 이상인 것을 특징으로 하는, 복합 고분자 전해질.
- 제 1 항에 있어서, 상기 단이온 전도성 고분자를 40 중량% 이하 포함하는 것을 특징으로 하는, 복합 고분자 전해질.
- 제 1 항에 있어서, 상기 무기입자를 단이온 전도성 고분자 100 중량부에 대해 100 내지 1000 중량부 포함하는 것을 특징으로 하는, 복합 고분자 전해질.
- 제 1 항에 있어서, 상기 환형 카보네이트를 단이온 전도성 고분자 100 중량부에 대해 100 내지 1000 중량부 포함하는 것을 특징으로 하는, 복합 고분자 전해질.
- 제 1 항에 있어서, 25℃ 이온전도도가 1.0 Х 10-4 S/cm이상인 것을 특징으로 하는, 복합 고분자 전해질.
- 하기 화학식 1의 단이온 전도성 단량체, 무기입자 및 가교결합제를 포함하는 혼합 용액을 제조하는 단계(S1 단계);상기 혼합 용액을 고온가열하여 단이온 전도성 고분자를 중합하고 상기 단이온 전도성 고분자를 포함하는 필름을 형성하는 단계(S2 단계); 및상기 필름에 환형 카보네이트를 함침시키는 단계(S3 단계); 를 포함하고,상기 단이온 전도성 고분자에 포함된 리튬 이온에 대한 상기 환형 카보네이트의 몰 비율이 5 이상인 것을 특징으로 하는, 복합 고분자 전해질의 제조방법:[화학식 1][화학식 2]상기 식에서,Q1은 C6-12 아릴렌 기 또는 화학식 2로 표시되는 작용기이고, 이때 n 은 1 내지 10의 정수이고,R1은 수소 또는 C1-3알킬 기이고,Q2는 할로겐 기 또는 할로겐 기로 치환된 C1-3알킬 기이며,Q3는 =O 또는 =N-S(O)2-R2이며, 상기 R2는 할로겐 기 또는 할로겐 기로 치환된 C1-3알킬 기이다.
- 제 12 항에 있어서, 상기 S2 단계는, 진공 조건 하 40 내지 100 ℃의 온도로 12 내지 24 시간 동안 수행되는 것을 특징으로 하는, 복합 고분자 전해질의 제조방법.
- 양극, 고체 전해질막 및 음극을 포함하고,상기 고체 전해질막이 복합 고분자 전해질을 포함하며,상기 복합 고분자 전해질은 하기 화학식 1의 단이온 전도성 단량체 및 가교결합제를 포함하는 혼합 용액으로부터 중합된 단이온 전도성 고분자; 환형 카보네이트; 및 무기입자; 를 포함하고,상기 단이온 전도성 고분자에 포함된 리튬 이온에 대한 상기 환형 카보네이트 간 몰 비율이 5 이상인 것을 특징으로 하는, 전고체 전지:[화학식 1][화학식 2]상기 식에서,Q1은 C6-12 아릴렌 기 또는 화학식 2로 표시되는 작용기이고, 이때 n 은 1 내지 10의 정수이고,R1은 수소 또는 C1-3알킬 기이고,Q2는 할로겐 기 또는 할로겐 기로 치환된 C1-3알킬 기이며,Q3는 =O 또는 =N-S(O)2-R2이며, 상기 R2는 할로겐 기 또는 할로겐 기로 치환된 C1-3알킬 기이다.
- 제 14 항에 있어서, 리튬 금속 또는 리튬 합금을 음극으로 사용하는 것을 특징으로 하는, 전고체 전지.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202580003366.0A CN121368826A (zh) | 2024-01-05 | 2025-01-03 | 复合聚合物电解质、其制造方法以及包含其的全固态电池 |
| EP25736278.0A EP4723277A1 (en) | 2024-01-05 | 2025-01-03 | Composite polymer electrolyte, method for manufacturing same, and all-solid-state battery comprising same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020240002097A KR20250107466A (ko) | 2024-01-05 | 2024-01-05 | 복합 고분자 전해질, 이의 제조방법 및 이를 포함하는 전고체 전지 |
| KR10-2024-0002097 | 2024-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025147124A1 true WO2025147124A1 (ko) | 2025-07-10 |
Family
ID=96300395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2025/000100 Pending WO2025147124A1 (ko) | 2024-01-05 | 2025-01-03 | 복합 고분자 전해질, 이의 제조방법 및 이를 포함하는 전고체 전지 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4723277A1 (ko) |
| KR (1) | KR20250107466A (ko) |
| CN (1) | CN121368826A (ko) |
| WO (1) | WO2025147124A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100496642B1 (ko) * | 2003-04-25 | 2005-06-20 | 한국전자통신연구원 | 단이온 전도체를 포함하는 리튬 이차전지용 복합 고분자전해질 및 그 제조 방법 |
| KR20210092928A (ko) * | 2020-01-17 | 2021-07-27 | 한국과학기술원 | 리튬 금속 전지용 단이온 전도성 유무기 복합보호막의 제조방법 |
| CN114665149A (zh) * | 2022-02-28 | 2022-06-24 | 合肥国轩高科动力能源有限公司 | 一种单离子凝胶聚合物电解质及其应用 |
| KR20230121540A (ko) * | 2022-02-11 | 2023-08-18 | 한국과학기술원 | 단이온 전도성 유무기 복합 겔, 이를 포함하는 전극 구조체 및 이를 포함하는 이차전지 |
| KR20240002097A (ko) | 2022-06-28 | 2024-01-04 | 차희찬 | 마우스 가드 |
-
2024
- 2024-01-05 KR KR1020240002097A patent/KR20250107466A/ko active Pending
-
2025
- 2025-01-03 EP EP25736278.0A patent/EP4723277A1/en active Pending
- 2025-01-03 CN CN202580003366.0A patent/CN121368826A/zh active Pending
- 2025-01-03 WO PCT/KR2025/000100 patent/WO2025147124A1/ko active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100496642B1 (ko) * | 2003-04-25 | 2005-06-20 | 한국전자통신연구원 | 단이온 전도체를 포함하는 리튬 이차전지용 복합 고분자전해질 및 그 제조 방법 |
| KR20210092928A (ko) * | 2020-01-17 | 2021-07-27 | 한국과학기술원 | 리튬 금속 전지용 단이온 전도성 유무기 복합보호막의 제조방법 |
| KR20230121540A (ko) * | 2022-02-11 | 2023-08-18 | 한국과학기술원 | 단이온 전도성 유무기 복합 겔, 이를 포함하는 전극 구조체 및 이를 포함하는 이차전지 |
| CN114665149A (zh) * | 2022-02-28 | 2022-06-24 | 合肥国轩高科动力能源有限公司 | 一种单离子凝胶聚合物电解质及其应用 |
| KR20240002097A (ko) | 2022-06-28 | 2024-01-04 | 차희찬 | 마우스 가드 |
Non-Patent Citations (1)
| Title |
|---|
| LECHARTIER, M. ET AL.: "Single-ion polymer/LLZO hybrid electrolytes with high lithium conductivity", MATER. ADV., vol. 3, 2022, pages 1139 - 1151, XP093083868, DOI: 10.1039/D1MA00857A * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN121368826A (zh) | 2026-01-20 |
| KR20250107466A (ko) | 2025-07-14 |
| EP4723277A1 (en) | 2026-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020197278A1 (ko) | 리튬 이차 전지 | |
| WO2015065004A1 (ko) | 겔 폴리머 전해질 및 이를 포함하는 리튬 이차전지 | |
| WO2019027137A1 (ko) | 리튬 이차 전지용 전해액 및 이를 포함하는 리튬 이차 전지 | |
| WO2019156539A1 (ko) | 리튬 이차전지용 비수전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2021167428A1 (ko) | 리튬 이차 전지용 비수 전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2021066462A1 (ko) | 비수 전해액 및 이를 포함하는 리튬 이차 전지 | |
| WO2021040392A1 (ko) | 리튬 이차 전지용 전해질 및 이를 포함하는 리튬 이차 전지 | |
| WO2022114930A1 (ko) | 리튬 이차 전지용 비수 전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2023014079A1 (ko) | 비수 전해질용 첨가제를 포함하는 비수 전해질 및 이를 포함하는 리튬 이차전지 | |
| WO2023008970A1 (ko) | 젤 폴리머 전해질 및 이를 포함하는 리튬 이차 전지 | |
| WO2021049872A1 (ko) | 리튬 이차전지용 비수전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2020009505A1 (ko) | 리튬 이차 전지용 전해질 및 이를 포함하는 리튬 이차 전지 | |
| WO2020197093A1 (ko) | 리튬 이차전지용 전해질 첨가제를 포함하는 리튬 이차전지 | |
| WO2018131952A1 (ko) | 비수 전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2024262724A1 (ko) | 전고체 이차 전지 | |
| WO2022149740A1 (ko) | 리튬 전지용 전해질 및 이를 포함하는 리튬 전지 | |
| WO2023149757A1 (ko) | 리튬 이차 전지 | |
| WO2023113253A1 (ko) | 리튬 이차전지용 전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2022197094A1 (ko) | 리튬 이차전지용 비수 전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2023058922A1 (ko) | 리튬 이차전지용 비수 전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2021256825A1 (ko) | 리튬 이차전지용 비수 전해액 첨가제 및 이를 포함하는 리튬 이차전지용 비수 전해액 및 리튬 이차전지 | |
| WO2021049875A1 (ko) | 리튬 이차전지용 비수전해액 및 이를 포함하는 리튬 이차전지 | |
| WO2020122650A1 (ko) | 리튬 이차전지용 전해질 및 이를 포함하는 리튬 이차전지 | |
| WO2024106910A1 (en) | Electrolyte for lithium secondary battery and lithium secondary battery including the same | |
| WO2026014831A1 (ko) | 애노드 프리 이차전지용 음극, 이의 제조 방법 및 이를 포함하는 애노드 프리 이차전지 |
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: 25736278 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2025575834 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 2025736278 Country of ref document: EP Effective date: 20251230 |
|
| ENP | Entry into the national phase |
Ref document number: 2025736278 Country of ref document: EP Effective date: 20251230 |
|
| ENP | Entry into the national phase |
Ref document number: 2025736278 Country of ref document: EP Effective date: 20251230 |
|
| ENP | Entry into the national phase |
Ref document number: 2025736278 Country of ref document: EP Effective date: 20251230 |











