KR101101152B1 - 전극 효율을 개선시키는 음극 활물질 - Google Patents
전극 효율을 개선시키는 음극 활물질 Download PDFInfo
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- KR101101152B1 KR101101152B1 KR1020070064188A KR20070064188A KR101101152B1 KR 101101152 B1 KR101101152 B1 KR 101101152B1 KR 1020070064188 A KR1020070064188 A KR 1020070064188A KR 20070064188 A KR20070064188 A KR 20070064188A KR 101101152 B1 KR101101152 B1 KR 101101152B1
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- active material
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- negative electrode
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- 239000011149 active material Substances 0.000 claims abstract description 78
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 239000007774 positive electrode material Substances 0.000 claims description 40
- 229910052744 lithium Inorganic materials 0.000 claims description 16
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- FDLZQPXZHIFURF-UHFFFAOYSA-N [O-2].[Ti+4].[Li+] Chemical group [O-2].[Ti+4].[Li+] FDLZQPXZHIFURF-UHFFFAOYSA-N 0.000 claims description 3
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- 238000010030 laminating Methods 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 150000005181 nitrobenzenes Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 229910021470 non-graphitizable carbon Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229960005323 phenoxyethanol Drugs 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003233 pyrroles Chemical class 0.000 description 1
- 239000001008 quinone-imine dye Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 229920005608 sulfonated EPDM Polymers 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000015041 whisky Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/523—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron for non-aqueous cells
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (11)
- 고효율의 제 1 활물질 성분과 상기 제 1 활물질 성분의 작동 전위에서 비가역 반응을 일으키는 제 2 활물질 성분으로 이루어져 있으며, 상기 제 2 활물질 성분으로서 Co 산화물에 의해 제 1 활물질 성분의 작동 효율을 양극 활물질의 수준으로 평준화(leveling) 시키는 것을 특징으로 하는 음극 활물질.
- 제 1 항에 있어서, 상기 제 1 활물질 성분은 그 자체의 효율이 높은 활물질인 것을 특징으로 하는 음극 활물질.
- 제 1 항에 있어서, 상기 제 1 활물질 성분은 이론 용량이 양극 활물질과 비슷하지만 초기 충방전시 양극 활물질에 비가역 용량이 발생하여 음극 활물질의 효율보다 낮아지게 되는 것을 특징으로 하는 음극 활물질.
- 제 2 항에 있어서, 상기 제 1 활물질 성분은 리튬 티타늄 산화물(Lithium Titanium Oxide: LTO)인 것을 특징으로 하는 음극 활물질.
- 제 1 항에 있어서, 상기 제 1 활물질 성분은 효율이 90% 이상인 것을 특징으로 하는 음극 활물질.
- 삭제
- 삭제
- 제 1 항에 있어서, 상기 제 2 활물질 성분은 음극 활물질의 전체 함량에 대하여, 1 내지 15 중량%로 포함되는 것을 특징으로 하는 음극 활물질.
- 제 1 항에 있어서, 상기 제 1 활물질 성분과 제 2 활물질 성분은 고상 상태(solid solution state)를 이루거나 단순히 혼합된 상태(mixture)로 존재하는 것을 특징으로 하는 음극 활물질.
- 제 1 항 내지 제 5 항, 제 8 항 및 제 9 항 중 어느 하나에 따른 음극 활물질을 포함하는 이차전지.
- 제 10 항에 있어서, 상기 전지는 리튬 이차전지인 것을 특징으로 하는 이차전지.
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KR1020070064188A KR101101152B1 (ko) | 2007-06-28 | 2007-06-28 | 전극 효율을 개선시키는 음극 활물질 |
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KR1020070064188A KR101101152B1 (ko) | 2007-06-28 | 2007-06-28 | 전극 효율을 개선시키는 음극 활물질 |
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KR101101152B1 true KR101101152B1 (ko) | 2012-01-05 |
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KR101159103B1 (ko) * | 2007-07-16 | 2012-06-22 | 주식회사 엘지화학 | 전극 효율을 개선하기 위한 음극 첨가제를 포함하고 있는음극 합제 |
KR101122135B1 (ko) * | 2009-06-19 | 2012-03-15 | 주식회사 이아이지 | 리튬 티탄 복합산화물을 포함하는 리튬이차전지 음극, 이를 이용한 리튬이차전지, 전지팩 및 자동차 |
KR102466413B1 (ko) * | 2016-09-29 | 2022-11-11 | 코오롱인더스트리 주식회사 | 폴리에스테르 다층필름 및 이의 제조방법 |
EP4131498A4 (en) * | 2020-03-27 | 2024-08-14 | Ningde Amperex Technology Limited | Negative electrode active material, electrochemical device using same, and electronic device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1069922A (ja) | 1996-08-27 | 1998-03-10 | Matsushita Electric Ind Co Ltd | 非水電解質リチウム二次電池 |
KR20070020759A (ko) * | 2005-08-16 | 2007-02-22 | 주식회사 엘지화학 | 무기 산화물을 포함하고 있는 리튬 이차전지 |
JP2007095496A (ja) * | 2005-09-29 | 2007-04-12 | Toshiba Corp | 非水電解質電池および電池パック |
-
2007
- 2007-06-28 KR KR1020070064188A patent/KR101101152B1/ko active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1069922A (ja) | 1996-08-27 | 1998-03-10 | Matsushita Electric Ind Co Ltd | 非水電解質リチウム二次電池 |
KR20070020759A (ko) * | 2005-08-16 | 2007-02-22 | 주식회사 엘지화학 | 무기 산화물을 포함하고 있는 리튬 이차전지 |
JP2007095496A (ja) * | 2005-09-29 | 2007-04-12 | Toshiba Corp | 非水電解質電池および電池パック |
Non-Patent Citations (1)
Title |
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GOOGLE.1999 |
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