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1. WO2020111543 - OCTAHEDRAL LITHIUM MANGANESE-BASED POSITIVE ELECTRODE ACTIVE MATERIAL, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Publication Number WO/2020/111543
Publication Date 04.06.2020
International Application No. PCT/KR2019/014733
International Filing Date 01.11.2019
IPC
C01G 45/12 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
45Compounds of manganese
12Manganates; Permanganates
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
H01M 4/131 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
131Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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
H01M 4/02 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
CPC
C01G 45/12
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
45Compounds of manganese
12Manganates ; manganites or; permanganates
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 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
H01M 4/131
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
131Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/505
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
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 노은솔 LHO, Eun Sol
  • 정왕모 JUNG, Wang Mo
  • 강민석 KANG, Min Suk
  • 이상욱 LEE, Sang Wook
  • 백소라 BAEK, So Ra
  • 왕문수 WANG, Wen Xiu
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2018-015227430.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) OCTAHEDRAL LITHIUM MANGANESE-BASED POSITIVE ELECTRODE ACTIVE MATERIAL, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING SAME
(FR) MATÉRIAU ACTIF À ÉLECTRODE POSITIVE À BASE DE LITHIUM-MANGANÈSE OCTAÉDRIQUE, ET ÉLECTRODE POSITIVE ET BATTERIE SECONDAIRE AU LITHIUM LA COMPRENANT
(KO) 팔면체 구조의 리튬 망간계 양극 활물질, 이를 포함하는 양극 및 리튬 이차전지
Abstract
(EN)
The present invention pertains to: a method for producing an octahedral lithium manganese-based positive electrode active material, the method comprising a step in which a manganese raw material, a raw material including a doping element M1 (the doping element M1 is at least one element selected from the group consisting of Mg, Al, Li, Zn, B, W, Ni, Co, Fe, Cr, V, Ru, Cu, Cd, Ag, Y, Sc, Ga, In, As, Sb, Pt, Au, and Si), and a lithium raw material are mixed, and the mixture is fired under an oxygen atmosphere to prepare a lithium manganese oxide having an octahedral structure and doped with the doping element M1, wherein the firing includes performing a first firing at 400-700°C for 3-10 hours and performing a second firing at 700-900°C for 10-20 hours; an octahedral lithium manganese-based positive electrode active material produced by the production method; and a positive electrode and a lithium secondary battery which include the octahedral lithium manganese-based positive electrode active material.
(FR)
La présente invention concerne : un procédé de production d’un matériau actif à électrode positive à base de lithium-manganèse octaédrique, le procédé comprenant une étape dans laquelle une matière première de manganèse, une matière première comprenant un élément dopant M1 (l’élément dopant M1 étant au moins un élément sélectionné dans le groupe constitué de Mg, Al, Li, Zn, B, W, Ni, Co, Fe, Cr, V, Ru, Cu, Cd, Ag, Y, Sc, Ga, In, As, Sb, Pt, Au, et Si), et une matière première de lithium sont mélangées, et le mélange est calciné sous atmosphère d’oxygène pour préparer un oxyde de lithium-manganèse présentant une structure octaédrique et dopé avec l’élément dopant M1, la calcination comprenant la réalisation d’une première calcination à 400 à 700 °C durant 3 à 10 heures et la réalisation d’une seconde calcination à 700 à 900 °C durant 10 à 20 heures ; un matériau actif à électrode positive à base de lithium-manganèse octaédrique produit par le procédé de production ; et une électrode positive et une batterie secondaire au lithium qui comprennent le matériau actif à électrode positive à base de lithium-manganèse octaédrique.
(KO)
본 발명은 망간 원료물질, 도핑원소 M1(상기 도핑원소 M1은 Mg, Al, Li, Zn, B, W, Ni, Co, Fe, Cr, V, Ru, Cu, Cd, Ag, Y, Sc, Ga, In, As, Sb, Pt, Au 및 Si로 이루어진 군으로부터 선택된 1종 이상의 원소임)을 포함하는 원료 물질 및 리튬 원료 물질을 혼합하고 산소 분위기 하에서 소성하여, 팔면체 구조를 가지고 도핑원소 M1에 의해 도핑된 리튬 망간 산화물을 제조하는 단계;를 포함하며, 상기 소성은 400 내지 700℃에서 3 내지 10 시간 동안 제1 소성을 수행하고, 700 내지 900℃에서 10 내지 20 시간 동안 제2 소성을 수행하는 것을 포함하는, 팔면체 구조의 리튬 망간계 양극 활물질의 제조 방법, 상기 제조 방법에 의해 제조된 팔면체 구조의 리튬 망간계 양극 활물질, 이를 포함하는 양극 및 리튬 이차전지에 관한 것이다.
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