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1. (WO2018026153) POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/026153    International Application No.:    PCT/KR2017/008244
Publication Date: 08.02.2018 International Filing Date: 31.07.2017
IPC:
H01M 4/36 (2006.01), H01M 4/525 (2010.01), H01M 4/505 (2010.01), H01M 4/131 (2010.01), H01M 10/0525 (2010.01)
Applicants: SAMSUNG SDI CO., LTD. [KR/KR]; 150-20 Gongse-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17084 (KR)
Inventors: PARK, Young Jin; (KR).
KIM, Changwook; (KR).
LEE, Eunsung; (KR)
Agent: PANKOREA PATENT AND LAW FIRM; 13F, 70 Nonhyeon-ro 85-gil, Gangnam-gu, Seoul 06234 (KR)
Priority Data:
10-2016-0098459 02.08.2016 KR
Title (EN) POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
(FR) MATÉRIAU ACTIF D’ÉLECTRODE POSITIVE POUR BATTERIE RECHARGEABLE AU LITHIUM ET PILE RECHARGEABLE AU LITHIUM COMPRENANT CELUI-CI
(KO) 리튬 이차 전지용 양극 활물질 및 이를 포함하는 리튬 이차 전지
Abstract: front page image
(EN)The present invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery comprising the same, wherein the positive electrode active material comprises: a first positive electrode active material of a lithium nickel cobalt manganese-based oxide of chemical formula 1 below; and a second positive electrode active material of a lithium cobalt-based oxide of chemical formula 2 below, the average particle diameter (D50) of the first positive electrode active material being smaller than the average particle diameter (D50) of the second positive electrode active material. [Chemical formula 1] LiaNixCoyMnzM1kO2 (in chemical formula 1, 0.9 ≤ a ≤ 1.1, 0.3 ≤ x < 0.6, 0.05 ≤ y ≤ 0.4, 0.05 ≤ z ≤ 0.4, 0 ≤ k ≤ 0.04, x + y + z + k =1, M1 is K, Zr, W, Mg, Ti, Al, or a combination thereof.) [Chemical formula 2] Li1-uMguCoO2-tM2t (in chemical formula 2, 0 < u < 0.04, 0 ≤ t < 0.02, and M2 is F).
(FR)La présente invention concerne un matériau actif d’électrode positive pour une batterie rechargeable au lithium et une batterie rechargeable au lithium comprenant celui-ci, le matériau actif d’électrode positive comprenant : un premier matériau actif d’électrode positive d’un oxyde à base de lithium-nickel-cobalt-manganèse de formule chimique 1 ci-dessous ; et un deuxième matériau actif d’électrode positive d’un oxyde à base de lithium-cobalt de formule chimique 2 ci-dessous, le diamètre de particule moyen (D50) du premier matériau actif d’électrode positive étant inférieur au diamètre moyen de particule (D50) du deuxième matériau actif d’électrode positive. [Formule chimique 1] LiaNixCoyMnzM1 kO2 (dans la formule chimique 1, 0,9 ≤ a ≤ 1,1, 0,3 ≤ x < 0,6, 0,05 ≤ y ≤ 0,4, 0,05 ≤ z ≤ 0,4, 0 ≤ k ≤ 0,04, x + y + z + k =1, M1 est K, Zr, W, Mg, Ti, Al, ou une combinaison de ceux-ci.) [Formule chimique 2] Li1-uMguCoO2-tM2 t (dans la formule chimique 2, 0 < u < 0,04, 0 ≤ t < 0.02, et M2 est F).
(KO)리튬 이차 전지용 양극 활물질 및 이를 포함하는 리튬 이차 전지에 관한 것으로서, 상기 양극 활물질은 하기 화학식 1의 리튬니켈코발트망간계 산화물 제1 양극 활물질; 및 하기 화학식 2의 리튬 코발트계 산화물 제2 양극 활물질을 포함하며, 상기 제1 양극 활물질의 평균 입경(D50)이 상기 제2 양극 활물질의 평균 입경(D50)보다 작은 것이다. [화학식 1] LiaNixCoyMnzM1kO2 (상기 화학식 1에서, 0.9 ≤ a ≤ 1.1, 0.3 ≤ x < 0.6, 0.05 ≤ y ≤ 0.4, 0.05 ≤ z ≤ 0.4, 0 ≤ k ≤ 0.04, x + y + z + k =1, M1은 K, Zr, W, Mg, Ti, Al 또는 이들의 조합임.) [화학식 2] Li1-uMguCoO2-tM2t (상기 화학식 2에서, 0 < u < 0.04, 0 ≤ t < 0.02, M2는 F임)
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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)