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1. (WO2017171462) LITHIUM SECONDARY BATTERY CATHODE ACTIVE MATERIAL AND CATHODE INCLUDING SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2017/171462    International Application No.:    PCT/KR2017/003542
Publication Date: 05.10.2017 International Filing Date: 31.03.2017
IPC:
H01M 4/525 (2010.01), H01M 4/505 (2010.01), H01M 4/131 (2010.01), H01M 10/0525 (2010.01)
Applicants: LG CHEM, LTD. [KR/KR]; 128, Yeoui-daero, Yeongdeungpo-gu, Seoul 07336 (KR)
Inventors: KIM, Jong Pil; (KR).
CHO, Seung Beom; (KR).
KIM, Won Tae; (KR).
SON, San Su; (KR).
LEE, Hyuck; (KR)
Agent: BAE, KIM & LEE IP GROUP; 11th Floor, 343, Gangnam-daero, Seocho-gu, Seoul 06626 (KR)
Priority Data:
10-2016-0039391 31.03.2016 KR
10-2017-0040482 30.03.2017 KR
Title (EN) LITHIUM SECONDARY BATTERY CATHODE ACTIVE MATERIAL AND CATHODE INCLUDING SAME
(FR) MATÉRIAU ACTIF DE CATHODE D'ACCUMULATEUR AU LITHIUM, ET CATHODE LE COMPRENANT
(KO) 리튬 이차전지용 양극활물질 및 이를 포함하는 양극
Abstract: front page image
(EN)The present invention relates to an cathode active material having improved capacity and life-span characteristics and a manufacturing method therefor and, particularly, to a lithium secondary battery cathode active material and a manufacturing method therefor, the lithium secondary battery cathode active material including a compound, which is represented by chemical formula 1 and enables reversible intercalation and de-intercalation of lithium, and having an MO-slab thickness of 2.1275Å or less, an inter-slab thickness of 2.59Å or more, and a Li and Ni cation mixing degree of 0.5% or less, which were obtained through a crystal structure analysis using the Rietveld method when using a space group R-3m in a crystal structure model on the basis of an x-ray diffraction analysis.
(FR)La présente invention concerne un matériau actif de cathode présentant des caractéristiques de capacité et de durée de vie améliorées et son procédé de fabrication, et en particulier un matériau actif de cathode d'accumulateur au lithium et son procédé de fabrication, le matériau actif de cathode d'accumulateur au lithium comprenant un composé, qui est représenté par la formule chimique 1 et qui permet une intercalation et une désintercalation réversibles du lithium, et présentant une épaisseur de feuillet MO inférieure ou égale à 2,1275 Å, une épaisseur interfeuillet supérieure ou égale à 2,59 Å et un degré de mélange de cations Li et Ni inférieur ou égal à 0,5 %, ces valeurs ayant été obtenues par analyse de structure cristalline à l'aide de la méthode de Rietveld en utilisant un groupe d'espace R-3m dans un modèle de structure cristalline sur la base d'une analyse de diffraction des rayons X.
(KO)본 발명은 용량 특성 및 수명 특성이 개선된 양극활물질 및 이의 제조방법에 관한 것으로, 구체적으로 상기 화학식 1로 표시되는 리튬의 가역적인 인터칼레이션 및 디인터칼레이션이 가능한 화합물을 포함하는 리튬 이차전지용 양극활물질이며, 상기 양극활물질은 X선 회절 분석을 기초로 공간군 R-3m을 결정 구조 모델에 사용했을 때의 리트벨트법에 의한 결정 구조 해석으로부터 MO-slab의 두께가 2.1275 Å 이하이고, inter-slab의 두께는 2.59 Å 이상이며, Li과 Ni의 양이온 혼합 정도가 0.5% 이하인 리튬 이차전지용 양극활물질 및 이의 제조방법에 관한 것이다.
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, 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)