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1. (WO2019045443) METHOD FOR MANUFACTURING POSITIVE ACTIVE MATERIAL, AND POSITIVE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY USING SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/045443 International Application No.: PCT/KR2018/009978
Publication Date: 07.03.2019 International Filing Date: 29.08.2018
IPC:
C01G 51/00 (2006.01) ,C01B 21/082 (2006.01) ,C01B 21/097 (2006.01) ,H01M 4/36 (2006.01) ,H01M 4/62 (2006.01) ,H01M 4/525 (2010.01) ,H01M 10/052 (2010.01)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
51
Compounds of cobalt
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
21
Nitrogen; Compounds thereof
082
Compounds containing nitrogen and non-metals
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
21
Nitrogen; Compounds thereof
082
Compounds containing nitrogen and non-metals
097
containing phosphorus atoms
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
62
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
48
of inorganic oxides or hydroxides
52
of nickel, cobalt or iron
525
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
052
Li-accumulators
Applicants:
주식회사 엘지화학 LG CHEM, LTD. [KR/KR]; 서울시 영등포구 여의대로 128 128, Yeoui-daero, Yeongdeungpo-gu, Seoul 07336, KR
중앙대학교 산학협력단 CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION [KR/KR]; 서울시 동작구 흑석로 84 84, Heukseok-ro, Dongjak-gu, Seoul 06974, KR
Inventors:
성다영 SUNG, Da Young; KR
김명길 KIM, Myung Gil; KR
장민철 JANG, Minchul; KR
함예린 HAM, Yeilin; KR
Agent:
김성호 KIM, Sung Ho; KR
박형달 PARK, Hyung-Dal; KR
Priority Data:
10-2017-011202301.09.2017KR
10-2018-010123128.08.2018KR
Title (EN) METHOD FOR MANUFACTURING POSITIVE ACTIVE MATERIAL, AND POSITIVE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY USING SAME
(FR) PROCÉDÉ DE FABRICATION DE MATÉRIAU ACTIF POSITIF, ET MATÉRIAU ACTIF POSITIF ET BATTERIE SECONDAIRE AU LITHIUM LE COMPRENANT
(KO) 양극 활물질의 제조방법 및 이를 이용한 양극 활물질 및 리튬 이차전지
Abstract:
(EN) The present invention relates to a method for manufacturing a positive active material, and a positive active material and lithium secondary battery using same and, more specifically, to a method for manufacturing a positive active material, comprising the steps of: (a) preparing a coating composition comprising a precursor of metal phosphorus oxynitride; (b) forming a precursor layer on a positive active material by means of solution processing of the coating composition; and (c) forming a metal phosphorus oxynitride protection layer on the positive active material by heat-treating the positive active material having the precursor layer formed thereon. The method for manufacturing a positive active material according to the present invention not only is advantageous in terms of overall process simplification and cost reduction by using solution processing, but also allows high capacity, high stability, and a long life by comprising the formed protection layer having excellent properties.
(FR) La présente invention concerne un procédé de fabrication d'un matériau actif positif, ainsi qu'un matériau actif positif et une batterie secondaire au lithium l'utilisant et, plus spécifiquement, un procédé de fabrication d'un matériau actif positif, comprenant les étapes suivantes : (a) préparation d'une composition de revêtement comprenant un précurseur d'oxynitrure de phosphore métallique ; (b) formation d'une couche de précurseur sur un matériau actif positif au moyen d'un traitement en solution de la composition de revêtement ; et (c) formation d'une couche de protection d'oxynitrure de phosphore métallique sur le matériau actif positif par traitement thermique du matériau actif positif sur lequel est formée la couche de précurseur. Le procédé de fabrication d'un matériau actif positif selon la présente invention non seulement est avantageux en termes de simplification de processus global et de réduction de coût par utilisation d'un traitement en solution, mais aussi permet une capacité élevée, une stabilité élevée et une longue durée de vie étant donné qu'il comprend la couche de protection formée ayant d'excellentes propriétés.
(KO) 본 발명은 양극 활물질의 제조방법 및 이를 이용한 양극 활물질 및 리튬 이차전지에 관한 것으로, 보다 상세하게는 (a) 금속-인-산화질화물의 전구체를 포함하는 코팅 조성물을 제조하는 단계; (b) 상기 코팅 조성물을 용액 공정에 의해 양극 활물질 상에 전구체층을 형성하는 단계; 및 (c) 상기 전구체층이 형성된 양극 활물질을 열처리하여 양극 활물질 상에 금속-인-산화질화물 보호층을 형성하는 단계를 포함하는 양극 활물질의 제조방법에 관한 것이다. 본 발명에 따른 양극 활물질의 제조방법은 용액 공정을 이용함으로써 전체 공정단순화 및 비용절감 측면에서 유리할 뿐만 아니라 형성된 보호층이 우수한 특성을 가져 이를 포함하는 고용량화, 고안정화 및 장수명화를 가능하게 한다.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)