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1. WO2019059647 - POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Publication Number WO/2019/059647
Publication Date 28.03.2019
International Application No. PCT/KR2018/011070
International Filing Date 19.09.2018
IPC
H01M 4/36 2006.01
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
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 4/505 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
50of manganese
505of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
C01G 53/00 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
53Compounds of nickel
C01G 51/00 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
51Compounds of cobalt
H01M 10/052 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
CPC
C01G 51/00
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
51Compounds of cobalt
C01G 53/00
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
53Compounds of nickel
H01M 10/052
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 2004/021
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
021Physical characteristics, e.g. porosity, surface area
H01M 2004/028
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
026characterised by the polarity
028Positive electrodes
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 박영욱 PARK, Young Uk
  • 유태구 YOO, Tae Gu
  • 황진태 HWANG, Jin Tae
  • 정왕모 JUNG, Wang Mo
  • 박성빈 PARK, Sung Bin
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2017-012067919.09.2017KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
(FR) MATÉRIAU D'ÉLECTRODE POSITIVE POUR PILE RECHARGEABLE AU LITHIUM, SON PROCÉDÉ DE PRÉPARATION, ET ÉLECTRODE POSITIVE POUR PILE RECHARGEABLE AU LITHIUM ET PILE RECHARGEABLE AU LITHIUM LA COMPRENANT
(KO) 리튬 이차전지용 양극재, 이의 제조방법, 이를 포함하는 리튬 이차전지용 양극 및 리튬 이차전지
Abstract
(EN)
The present invention relates to a positive electrode material, a method for manufacturing the same, a positive electrode for a lithium secondary battery and a lithium secondary battery comprising the same. According to the present invention, the positive electrode material comprises: a first positive active material represented by chemical formula 1 below and a second positive active material represented by chemical formula 2 below, wherein the positive electrode material has an electrical conductivity of 0.1 μS/cm to 150 μS/cm, which is measured after compressing the second positive active material with a rolling density of 400kgf to 2,000 kgf and manufacturing the second positive active material in the form of a pellet. [Chemical formula 1] LiCo1-aM1aO2 wherein, M1 is at least one selected from the group consisting of Al, Ti, Mg, and Zr, and 0≤a≤0.2 [Chemical formula 2] LiNibCocMndM2eO2 wherein, M2 is at least one selected from the group consisting of Al, Ti, Mg, Zr, Y, Sr, and B, and 0(FR)
La présente invention concerne un matériau d'électrode positive, un procédé de fabrication de celui-ci, une électrode positive pour une pile secondaire au lithium et une pile secondaire au lithium comprenant celle-ci. Selon la présente invention, le matériau d'électrode positive comprend : un premier matériau actif positif représenté par la formule chimique 1 ci-dessous et un second matériau actif positif représenté par la formule chimique 2 ci-dessous, le matériau d'électrode positive ayant une conductivité électrique de 0,1 µS/cm à 150 μS/cm, qui est mesurée après la compression du second matériau actif positif avec une densité de laminage de 400 kgf à 2 000 kgf et la fabrication du second matériau actif positif sous la forme d'une pastille. [Formule chimique 1] LiCo1-aM1 aO2 dans laquelle M1 est au moins un élément choisi dans le groupe consistant en Al, Ti, Mg et Zr, et 0 ≤ a ≤ 0,2 [Formule chimique 2] LiNibCocMndM2 eO2 dans laquelle M2 est au moins un élément choisi dans le groupe consistant en Al, Ti, Mg, Zr, Y, Sr et B, et 0 < b ≤ 0,6, 0 < c ≤ 0,35, 0 < d ≤ 0,35 et 0 < e ≤ 0,1
(KO)
본 발명은 하기 화학식 1로 표시되는 제1 양극 활물질; 및, 하기 화학식 2로 표시되는 제2 양극 활물질;을 포함하는 양극재이며, 상기 제2 양극 활물질은, 상기 제2양극 활물질을 400kgf 내지 2,000 kgf의 압연 밀도로 압축하여 펠릿 형태로 제조한 후 측정한 전기 전도도가 0.1 μS/cm 내지 150 μS/cm인 것인, 양극재, 상기 양극재의 제조 방법, 상기 양극재를 포함하는 리튬 이차전지용 양극 및 리튬 이차전지에 관한 것이다: [화학식 1] LiCo1-aM1aO2 [화학식 2] LiNibCocMndM2eO2 상기 화학식 1에서, M1은 Al, Ti, Mg, 및 Zr로 이루어진 군에서 선택되는 적어도 하나 이상이고, 0≤a≤0.2이며, 상기 화학식 2에서, M2는 Al, Ti, Mg, Zr, Y, Sr, 및 B로 이루어진 군에서 선택되는 적어도 하나 이상이고, 0
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