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1. (WO2018124781) POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE COMPRISING SAME FOR SECONDARY BATTERY, AND SECONDARY BATTERY
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Pub. No.: WO/2018/124781 International Application No.: PCT/KR2017/015666
Publication Date: 05.07.2018 International Filing Date: 28.12.2017
IPC:
H01M 4/36 (2006.01) ,H01M 4/505 (2010.01) ,H01M 4/525 (2010.01) ,H01M 4/131 (2010.01) ,H01M 10/0525 (2010.01) ,C01G 51/00 (2006.01) ,C01G 53/00 (2006.01)
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
36
Selection of substances as active materials, active masses, active liquids
48
of inorganic oxides or hydroxides
50
of manganese
505
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
131
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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
0525
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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
G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
53
Compounds of nickel
Applicants:
주식회사 엘지화학 LG CHEM, LTD. [KR/KR]; 서울시 영등포구 여의대로 128 128, Yeoui-daero, Yeongdeungpo-gu, Seoul 07336, KR
Inventors:
채화석 CHAE, Hwa Seok; KR
박상민 PARK, Sang Min; KR
박신영 PARK, Sin Young; KR
박홍규 PARK, Hong Kyu; KR
강성훈 KANG, Seong Hoon; KR
Agent:
특허법인 태평양 BAE, KIM & LEE IP GROUP; 서울시 서초구 강남대로 343, 11층 11th Floor, 343, Gangnam-daero, Seocho-gu, Seoul 06626, KR
Priority Data:
10-2016-018102728.12.2016KR
Title (EN) POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE COMPRISING SAME FOR SECONDARY BATTERY, AND SECONDARY BATTERY
(FR) MATÉRIAU ACTIF D’ÉLECTRODE POSITIVE POUR ACCUMULATEUR, SON PROCÉDÉ DE PRÉPARATION, ÉLECTRODE POSITIVE LE COMPRENANT POUR ACCUMULATEUR, ET ACCUMULATEUR
(KO) 이차전지용 양극 활물질, 그 제조 방법, 이를 포함하는 이차전지용 양극 및 이차전지
Abstract:
(EN) The present invention relates to a positive electrode active material for a secondary battery, a preparation method therefor, a positive electrode comprising the same, and a secondary battery, the positive electrode active material comprising: a lithium composite metal oxide represented by chemical formula 1; and a cobalt-rich layer formed on a surface of the lithium composite metal oxide and having a higher cobalt content than the lithium composite metal oxide.
(FR) La présente invention porte sur un matériau actif d’électrode positive pour un accumulateur, son procédé de préparation, une électrode positive le comprenant, et un accumulateur, le matériau actif d’électrode positive comprenant : un oxyde de métal composite de lithium représenté par la formule chimique (1) ; et une couche riche en cobalt formée sur une surface de l’oxyde de métal composite de lithium et dont la teneur en cobalt est supérieure à celle de l’oxyde de métal composite de lithium.
(KO) 본 발명은 화학식 1로 표시되는 리튬 복합 금속 산화물; 및 상기 리튬 복합 금속 산화물 표면에 형성되고, 상기 리튬 복합 금속 산화물에 비해 코발트 함량이 높은 코발트-리치층(Cobalt-rich layer)을 포함하는 이차 전지용 양극 활물질, 이의 제조 방법, 이를 포함하는 양극 및 이차 전지에 관한 것이다.
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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)