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1. (WO2012108702) MIXED POSITIVE ELECTRODE ACTIVE MATERIAL WITH IMPROVED OUTPUT CHARACTERISTICS AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/108702    International Application No.:    PCT/KR2012/000969
Publication Date: 16.08.2012 International Filing Date: 09.02.2012
IPC:
H01M 4/505 (2010.01), H01M 10/052 (2010.01), H01M 4/62 (2006.01), B60L 11/18 (2006.01)
Applicants: LG CHEM. LTD. [KR/KR]; LG Twin Towers, 20, Yeouido-dong, Yeongdeungpo-gu Seoul 150-721 (KR) (For All Designated States Except US).
PARK, Jung Hwan [KR/KR]; (KR) (For US Only).
OH, Song Taek [KR/KR]; (KR) (For US Only).
CHUNG, Geun Chang [KR/KR]; (KR) (For US Only).
KIM, Su Hwan [KR/KR]; (KR) (For US Only).
ARAI, Juichi [JP/KR]; (KR) (For US Only)
Inventors: PARK, Jung Hwan; (KR).
OH, Song Taek; (KR).
CHUNG, Geun Chang; (KR).
KIM, Su Hwan; (KR).
ARAI, Juichi; (KR)
Agent: BAE, KIM & LEE IP GROUP; 11th Floor, 343 Gangnam-daero Seocho-gu Seoul 137-858 (KR)
Priority Data:
10-2011-0011448 09.02.2011 KR
Title (EN) MIXED POSITIVE ELECTRODE ACTIVE MATERIAL WITH IMPROVED OUTPUT CHARACTERISTICS AND LITHIUM SECONDARY BATTERY COMPRISING SAME
(FR) MATÉRIAU ACTIF D'ÉLECTRODE POSITIVE MIXTE AVEC DES CARACTÉRISTIQUES DE PUISSANCE AMÉLIORÉES ET BATTERIE AU LITHIUM SECONDAIRE LE COMPRENANT
(KO) 출력특성이 향상된 혼합 양극활물질 및 이를 포함하는 리튬이차전지
Abstract: front page image
(EN)The present invention relates to a mixed positive electrode active material and to a lithium secondary battery comprising the same, wherein the mixed positive electrode active material comprises lithium manganese oxide expressed by the following chemical formula 1 and Li4Mn5O12 having a stoicheiometric spinel structure with a flat level voltage profile in the range of 2.5 V to 3.3V. [chemical formula 1] xLi2MnO3 · (1-x)LiMO2, wherein 04Mn5O12 supplements a low output in a low SOC range to maintain an output at the level higher than a required output level, thereby widening an available SOC range. The mixed positive electrode active material and the lithium secondary battery comprising the same may be suitably used in PHEV, EV or the like.
(FR)La présente invention concerne un matériau actif d'électrode positive mixte et une batterie au lithium secondaire le comprenant, le matériau actif d'électrode positive mixte comprenant de l'oxyde de lithium et de manganèse exprimé par la formule chimique 1 suivante et Li4Mn5O12 ayant une structure de spinelle stœchiométrique avec un profil de tension de niveau plat dans l'intervalle de 2,5 V à 3,3 V. [formule chimique 1] xLi2MnO3 · (1-x)LiMO2, dans laquelle 04Mn5O12 ajoute une faible puissance dans un intervalle d'états de charge bas afin de maintenir un niveau de puissance supérieur au niveau de puissance requis, élargissant ainsi un intervalle d'états de charge disponibles. Le matériau actif d'électrode positive mixte et la batterie au lithium secondaire le comprenant peuvent être utilisés de façon appropriée dans des VHR, des VE ou des véhicules similaires. DRAWING: FIG. 1: Power Puissance 100% Mn-rich Riche en Mn 100 % 85% Mn-rich and 15 % Li4Mn5O12 Riche en Mn 85 % et Li4Mn5O12 15 % SOC EdC
(KO)본 발명은 하기 [화학식 1]로 표시되는 리튬 망간산화물과 2.5 V 내지 3.3V에서 평탄준위 전압 프로파일(profile)을 갖는 화학양론 스피넬 구조의 Li4Mn5O12를 포함하는 혼합 양극활물질 및 이를 포함하는 리튬이차전지에 관한 것이다. [화학식 1] xLi2MnO3 · (1-x)LiMO2 상기 [화학식 1]에서, 04Mn5O12이 보완하여 요구출력 이상으로 출력을 유지함으로써 가용 SOC 구간을 넓힐 수 있는 혼합 양극활물질 및 이를 포함하는 리튬이차전지를 제공하여, PHEV 또는 EV 등에 적합하게 사용될 수 있다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, 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, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)