KR100892048B1 - 고율 방전 특성이 향상된 이차전지 - Google Patents
고율 방전 특성이 향상된 이차전지 Download PDFInfo
- Publication number
- KR100892048B1 KR100892048B1 KR1020060089896A KR20060089896A KR100892048B1 KR 100892048 B1 KR100892048 B1 KR 100892048B1 KR 1020060089896 A KR1020060089896 A KR 1020060089896A KR 20060089896 A KR20060089896 A KR 20060089896A KR 100892048 B1 KR100892048 B1 KR 100892048B1
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- KR
- South Korea
- Prior art keywords
- secondary battery
- positive electrode
- electrolyte
- active material
- peo
- Prior art date
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- 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
- 238000012546 transfer Methods 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
- 235000015041 whisky Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- 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
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- 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
- H01M10/058—Construction or manufacture
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- 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
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- 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
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- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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- 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
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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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
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Abstract
Description
Claims (11)
- 전해액의 젖음 특성이 낮은 양극 활물질을 주성분으로 포함하는 이차전지로서, 퍼플루오르화 술폰 아마이드 치환기를 포함하는 고분자('첨가제')가 (ⅰ) 양극 합제, 또는 (ⅱ) 전해액, 또는 (ⅲ) 양극 합제 및 전해액에 첨가되어 고율 방전 특성을 향상시키는 것으로 구성되어 있고, 상기 전해액의 젖음 특성이 낮은 양극 활물질은 적어도 2 종류의 전이금속 원소들을 포함하고 있는 다성분계 양극 활물질인 것을 특징으로 하는 이차전지.
- 삭제
- 제 1 항에 있어서, 상기 다성분계 양극 활물질은 1차 입자들이 응집된 구조의 2차 입자 형태로 이루어진 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 다성분계 전이금속 산화물은 양극 활물질 전체 중량을 기준으로 20 중량% 이상 포함되어 있는 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 다성분계 전이금속 산화물은 리튬 니켈-망간-코발트 산화물인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 첨가제는 전해액 전체 중량을 기준으로 0.01 ~ 10 중량%로 첨가되는 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 첨가제가 양극 합제 전체 중량을 기준으로 0.05 내지 5 중량%로 첨가되는 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 첨가제는 폴리에틸렌옥사이드(PEO)와 폴리프로필렌옥사이드(PPO)의 블록 공중합 구조의 한쪽 또는 양쪽 말단에 퍼플루오르화 술폰 아마이드 치환체가 결합되어 있는 변질 공중합체인 것을 특징으로 하는 이차전지.
- 제 8 항에 있어서, 상기 첨가제는, 상기 PEO-PPO 블록 공중합체가 전체적으로 PEO 블록과 PPO 블록으로 이루어져 있어서 그것의 양쪽 말단들을 구성하는 경우, 퍼플루오르화 술폰 아마이드 치환체가 PEO 블록의 말단에 결합되는 것을 특징으로 하는 이차전지.
- 제 8 항에 있어서, 상기 PEO-PPO 블록 공중합체 중에서 PEO 함량은 전체 공중합체의 중량을 기준으로 30 내지 80 중량%인 것을 특징으로 하는 이차전지.
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KR1020060089896A KR100892048B1 (ko) | 2006-09-18 | 2006-09-18 | 고율 방전 특성이 향상된 이차전지 |
BRPI0718466A BRPI0718466B8 (pt) | 2006-09-18 | 2007-08-04 | Bateria secundária de propriedades de alta taxa de descarga aperfeiçoadas |
CN2007800344553A CN101517812B (zh) | 2006-09-18 | 2007-08-04 | 具有改善的高速率放电特性的二次电池 |
PCT/KR2007/003759 WO2008035854A1 (en) | 2006-09-18 | 2007-08-04 | Secondary battery of improved high-rate discharging properties |
US12/440,780 US8129053B2 (en) | 2006-09-18 | 2007-08-04 | Secondary battery of improved high-rate discharging properties |
EP07807963.9A EP2064768B1 (en) | 2006-09-18 | 2007-08-04 | Secondary battery with improved high-rate discharging properties |
JP2009529100A JP5474553B2 (ja) | 2006-09-18 | 2007-08-04 | 高速放電特性を改良した二次バッテリー |
TW096131906A TWI349384B (en) | 2006-09-18 | 2007-08-28 | Secondary battery of improved high-rate discharging properties |
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BR (1) | BRPI0718466B8 (ko) |
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WO2021225396A1 (ko) * | 2020-05-08 | 2021-11-11 | 주식회사 엘지에너지솔루션 | 이차전지용 양극, 그 제조방법 및 이를 포함하는 리튬 이차전지 |
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US20100047694A1 (en) | 2010-02-25 |
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