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1. WO2013147537 - METHOD FOR PREPARING CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY, CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY PREPARED THEREBY, AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY CONTAINING SAME

Publication Number WO/2013/147537
Publication Date 03.10.2013
International Application No. PCT/KR2013/002616
International Filing Date 29.03.2013
IPC
H01M 4/525 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
52of nickel, cobalt or iron
525of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/139 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139Processes of manufacture
CPC
C01G 53/006
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
53Compounds of nickel
006Compounds containing, besides nickel, two or more other elements, with the exception of oxygen or hydrogen
C01G 53/44
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
53Compounds of nickel
40Nickelates
42containing alkali metals, e.g. LiNiO2
44containing manganese
C01P 2002/88
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2002Crystal-structural characteristics
80defined by measured data other than those specified in group C01P2002/70
88by thermal analysis data, e.g. TGA, DTA, DSC
C01P 2004/84
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
80Particles consisting of a mixture of two or more inorganic phases
82two phases having the same anion, e.g. both oxidic phases
84one phase coated with the other
C01P 2006/40
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2006Physical properties of inorganic compounds
40Electric properties
H01M 4/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
Applicants
  • 한양대학교 산학협력단 IUCF-HYU(INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY) [KR]/[KR]
Inventors
  • 선양국 SUN, Yang-Kook
Agents
  • 김태선 KIM, Tae-Sun
Priority Data
10-2012-003364731.03.2012KR
10-2013-003402529.03.2013KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR PREPARING CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY, CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY PREPARED THEREBY, AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY CONTAINING SAME
(FR) PROCÉDÉ DE PRÉPARATION DE PRÉCURSEUR DE MATÉRIAU ACTIF DE CATHODE POUR UNE BATTERIE SECONDAIRE AU LITHIUM, PRÉCURSEUR DE MATÉRIAU ACTIF DE CATHODE POUR BATTERIE SECONDAIRE AU LITHIUM PRÉPARÉ PAR CELUI-CI ET MATÉRIAU ACTIF DE CATHODE POUR BATTERIE SECONDAIRE AU LITHIUM LE CONTENANT
(KO) 리튬 이차 전지용 양극활물질 전구체의 제조 방법, 이에 의하여 제조된 리튬 이차 전지용 양극활물질 전구체, 및 이를 포함하는 리튬 이차 전지용 양극활물질
Abstract
(EN)
The present invention relates to a method for preparing a cathode active material precursor for a lithium secondary battery, a cathode active material precursor for a lithium secondary battery prepared thereby, and a cathode active material for a lithium secondary battery containing the same. According to the present invention, the method for preparing a cathode active material precursor for a lithium secondary battery, which has excellent thermal stability due to a metal composition having a continuous concentration gradient from the interface at which a core and an outer shell make contact to an active material surface, controls the concentration of a concentration gradient portion and a shell portion in a precursor, thereby obtaining a desired concentration of a transition metal in a shell.
(FR)
La présente invention concerne un procédé de préparation d'un précurseur de matériau actif de cathode, destiné à une batterie secondaire au lithium, un précurseur de matériau actif de cathode, destiné à une batterie secondaire au lithium, préparé par ce procédé et un matériau actif de cathode, destiné à une batterie secondaire au lithium le contenant. Selon la présente invention, le procédé de préparation d'un précurseur de matériau actif de cathode, destiné à une batterie secondaire au lithium, qui a une excellente stabilité thermique du fait d'une composition métallique, ayant un gradient de concentration continu, depuis l'interface à laquelle un noyau et une coque externe entrent en contact jusqu'à une surface de matériau actif, commande la concentration d'une partie du gradient de concentration et une partie de coque dans un précurseur, obtenant ainsi une concentration souhaitée d'un métal de transition dans une coque.
(KO)
본 발명은 리튬 이차 전지용 양극활물질 전구체의 제조 방법, 이에 의하여 제조된 리튬 이차 전지용 양극활물질 전구체, 및 이를 포함하는 리튬 이차 전지용 양극활물질에 관한 것이다. 본 발명의 리튬 이차 전지용 양극활물질 전구체의 제조 방법은 코어와 외부 쉘이 접촉하는 경계면에서 활물질 표면으로 금속 조성이 연속적인 농도 구배로 존재하여 열적 안전성이 우수한 양극 활물질 전구체의 제조에 있어서, 전구체에서의 농도 구배부와 쉘부의 농도를 조절하여 쉘에서의 전이 금속의 농도를 원하는 농도로 제조할 수 있는 효과를 나타낸다.
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