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1. (WO2016175539) ANODE ACTIVE MATERIAL AND ANODE INCLUDING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/175539    International Application No.:    PCT/KR2016/004360
Publication Date: 03.11.2016 International Filing Date: 26.04.2016
IPC:
H01M 4/36 (2006.01), H01M 4/587 (2010.01), H01M 4/133 (2010.01), H01M 10/052 (2010.01), H01M 10/056 (2010.01), H01M 2/10 (2006.01)
Applicants: LG CHEM, LTD. [KR/KR]; 128, Yeoui-daero Yeongdeungpo-gu, Seoul 07336 (KR)
Inventors: KIM, Hyun Wook; (KR).
KIM, Eun Kyung; (KR).
SHIN, Sun Young; (KR)
Agent: BAE, KIM & LEE IP GROUP; 11th Floor, 343, Gangnam-daero, Seocho-gu, Seoul 06626 (KR)
Priority Data:
10-2015-0060452 29.04.2015 KR
10-2016-0049966 25.04.2016 KR
Title (EN) ANODE ACTIVE MATERIAL AND ANODE INCLUDING SAME
(FR) MATIÈRE ACTIVE D'ANODE ET ANODE LA COMPRENANT
(KO) 음극 활물질 및 이를 포함하는 음극
Abstract: front page image
(EN)The present invention relates to an anode active material and a preparation method therefor and, particularly, to an anode active material comprising: a core including artificial graphite and hard carbon; and a shell encompassing the core and including natural graphite, wherein the shell is formed such that the natural graphite is stacked and structured therein so as to cover the surface of the core. The anode active material according to the present invention enables natural graphite to fully encompass artificial graphite and hard carbon, thereby exhibiting a high initial efficiency and lifespan since hard carbon, which exhibits a low initial efficiency and has high electrolyte consumption, is not exposed to the outside. In addition, since all of the natural graphite, artificial graphite, and hard carbon are used, a high output property can be exhibited due to a low diffusion resistance of lithium ions compared to when only the natural graphite is used.
(FR)La présente invention concerne une matière active d'anode et son procédé de préparation et, en particulier, une matière active d'anode comprenant : un cœur comprenant du graphite artificiel et du carbone dur ; et une enveloppe entourant le cœur et comprenant du graphite naturel, l'enveloppe étant formée de telle sorte que le graphite naturel est empilé et structuré à l'intérieur de cette dernière de manière à recouvrir la surface du cœur. La matière active d'anode selon la présente invention permet à du graphite naturel d'entourer complètement le graphite artificiel et le carbone dur, ce qui lui permet de présenter un rendement initial élevé et une durée de vie élevée étant donné que le carbone dur, qui présente un faible rendement initial et présente une consommation d'électrolyte élevée, n'est pas exposé vers l'extérieur. En outre, étant donné que le graphite naturel, le graphite artificiel, et le carbone dur sont complètement utilisés, une propriété de sortie élevée peut être présentée en raison d'une faible résistance de diffusion d'ions lithium par comparaison à lorsque seul le graphite naturel est utilisé.
(KO)본 발명은 음극 활물질 및 이의 제조방법에 관한 것으로, 상세하게는 인조흑연 및 하드카본을 포함하는 코어; 및 상기 코어를 둘러싸고, 천연흑연을 포함하는 쉘;을 포함하며, 상기 쉘은 상기 천연흑연이 적층되어 결구되어 상기 코어의 표면을 덮도록 형성된 음극 활물질에 관한 것이다. 본 발명에 따른 음극 활물질은 천연흑연이 인조흑연 및 하드카본을 완전히 감싸고 있으므로, 낮은 초기효율을 나타내며 전해액 소모량이 높은 하드카본이 외부에 노출되어 있지 않기 때문에 높은 초기효율 및 수명 특성을 나타낼 수 있다. 또한, 천연흑연, 인조흑연 및 하드카본을 모두 사용하기 때문에, 천연흑연만을 사용하는 경우보다 리튬 이온의 확산 저항이 낮아 높은 출력 특성을 나타내는 효과가 있다.
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, 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, KN, KP, 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)