KR100846479B1 - 전기화학적 그라프팅 모노머를 포함하는 유기전해액, 및이를 채용한 리튬 전지 - Google Patents
전기화학적 그라프팅 모노머를 포함하는 유기전해액, 및이를 채용한 리튬 전지 Download PDFInfo
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- KR100846479B1 KR100846479B1 KR1020060078915A KR20060078915A KR100846479B1 KR 100846479 B1 KR100846479 B1 KR 100846479B1 KR 1020060078915 A KR1020060078915 A KR 1020060078915A KR 20060078915 A KR20060078915 A KR 20060078915A KR 100846479 B1 KR100846479 B1 KR 100846479B1
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- organic electrolyte
- monomer compound
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- 239000000178 monomer Substances 0.000 title claims abstract description 45
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
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- 150000001875 compounds Chemical class 0.000 claims abstract description 62
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- 239000003960 organic solvent Substances 0.000 claims abstract description 20
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 15
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 15
- 238000009835 boiling Methods 0.000 claims abstract description 11
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- 229910052736 halogen Inorganic materials 0.000 claims description 18
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- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 7
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- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- DUDCYUDPBRJVLG-UHFFFAOYSA-N ethoxyethane methyl 2-methylprop-2-enoate Chemical compound CCOCC.COC(=O)C(C)=C DUDCYUDPBRJVLG-UHFFFAOYSA-N 0.000 claims description 6
- 125000005843 halogen group Chemical group 0.000 claims description 6
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- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 claims description 3
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- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical class COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
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- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 3
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- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
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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
-
- 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
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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
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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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
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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
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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
Abstract
Description
7th 사이클 | 100th 사이클 | ||||||
충전용량 (mAh/g) | 방전용량 (mAh/g) | 충방전 효율(%) | 충전용량 (mAh/g) | 방전용량 (mAh/g) | 충방전 효율 (%) | 용량 유지율(%) | |
실시예 4 | 16.23 | 15.98 | 98.45 | 11.07 | 11.02 | 99.6 | 70.08 |
실시예 5 | 17.17 | 16.92 | 98.53 | 11.89 | 11.85 | 99.7 | 70.11 |
실시예 6 | 16.95 | 16.74 | 98.78 | 11.18 | 11.16 | 99.8 | 66.6 |
비교예 2 | 17.98 | 17.82 | 99.11 | 10.66 | 10.55 | 98.9 | 59.2 |
Claims (12)
- 리튬염;고유전율 용매와 저비점 용매를 함유하는 유기용매; 및하기 화학식 1로 표시되는 단량체 화합물을 포함하는 유기 전해액:<화학식 1>상기 식에서,n이 1 내지 20의 실수이고,m이 0 내지 10의 정수이고,q가 1 내지 10의 정수이고,X1, X2, X3 및 X4가 서로 독립적으로 O, CH2 또는 NH 이며,R1 및 R2 가 서로 독립적으로 수소; 할로겐; 할로겐으로 치환 또는 비치환된 탄소수 1 내지 20의 알콕시기; 할로겐으로 치환 또는 비치환된 탄소수 1 내지 20의 알킬기; 할로겐으로 치환 또는 비치환된 탄소수 6 내지 30의 아릴기; 또는 할로겐으로 치환 또는 비치환된 탄소수 2 내지 30의 헤테로아릴기이며;상기 R9가 수소; 또는 할로겐으로 치환 또는 비치환된 탄소수 1 내지 20의 알킬기이다.
- 제 1 항에 있어서, 상기 A1이 옥시에틸렌기, 옥시프로필렌기, 옥시부틸렌기 및 옥시펜틸렌기로 이루어진 군에서 선택된 하나 이상의 옥시알킬렌기인 것을 특징으로 하는 유기 전해액.
- 제 1 항에 있어서, 상기 단량체 화합물의 함량이 상기 유기 용매의 총 중량을 기준으로 0.5 내지 20 중량%인 것을 특징으로 하는 유기 전해액.
- 제 1 항에 있어서, 상기 단량체 화합물의 함량이 상기 유기 용매의 총 중량을 기준으로 1 내지 15 중량%인 것을 특징으로 하는 유기 전해액.
- 제 1 항에 있어서, 상기 리튬염의 농도가 0.5 내지 2.0M인 것을 특징으로 하는 유기 전해액.
- 제 1 항에 있어서, 상기 고유전율 용매가 에틸렌 카보네이트, 프로필렌 카보네이트, 부틸렌 카보네이트 및 감마 부티로락톤으로 구성된 군으로부터 선택된 하나 이상인 것을 특징으로 하는 유기 전해액.
- 제 1 항에 있어서, 상기 저비점 용매가 디메틸 카보네이트, 에틸메틸 카보네이트, 디에틸 카보네이트, 디프로필 카보네이트, 디메톡시에탄, 디에톡시에탄 및 지방산 에스테르 유도체로 구성된 군으로 선택된 하나 이상인 것을 특징으로 하는 유기 전해액.
- 제 1 항에 있어서, 상기 리튬염이 LiPF6, 상기 고유전율 용매가 에틸렌 카보네이트, 상기 저비점 용매가 디에틸 카보네이트, 상기 단량체 화합물이 폴리(에틸렌글리콜)메틸 에테르 메타크릴레이트(n=8) 또는 폴리(에틸렌글리콜)디메타크릴레이트(n=10)인 것을 특징으로 하는 유기 전해액.
- 캐소드;애노드; 및제 1 항 내지 제 11 항 중 어느 한 항에 따른 유기 전해액을 포함하는 것을 특징으로 하는 리튬 전지.
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EP2481111B1 (en) * | 2009-09-23 | 2014-05-07 | Umicore | New silicon based electrode formulations for lithium-ion batteries and method for obtaining it |
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KR20170113333A (ko) | 2016-03-31 | 2017-10-12 | 주식회사 엘지화학 | 이차전지의 제조방법 |
KR102618539B1 (ko) * | 2016-05-27 | 2023-12-28 | 삼성전자주식회사 | 리튬금속전지용 전해질, 이를 포함하는 리튬금속전지 및 리튬금속전지의 제조방법 |
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