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1. (WO2016105176) ELECTROCHEMICAL DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/105176    International Application No.:    PCT/KR2015/014358
Publication Date: 30.06.2016 International Filing Date: 28.12.2015
IPC:
H01M 10/04 (2006.01), H01M 2/02 (2006.01), H01M 2/34 (2006.01), H01M 10/052 (2010.01)
Applicants: LG CHEM, LTD. [KR/KR]; 128, Yeoui-daero, Yeongdeungpo-gu, Seoul 07336 (KR)
Inventors: SONG, Joo-Yong; (KR)
Agent: PHIL & ONZI INT'L PATENT & LAW FIRM; 3F., 36 Seochojungang-ro Seocho-gu, Seoul 06643 (KR)
Priority Data:
10-2014-0191038 26.12.2014 KR
Title (EN) ELECTROCHEMICAL DEVICE
(FR) DISPOSITIF ÉLECTROCHIMIQUE
(KO) 전기 화학 소자
Abstract: front page image
(EN)An electrochemical device of the present invention comprises: a case; an electrode assembly disposed inside the case and comprising a positive electrode, a negative electrode, and a separator interposed between the negative electrode and the positive electrode; and an electrolyte injected into the case, wherein, on the basis of the total volume (CV) of an empty space inside the case according to equation 1 below, the volume (EV) of a free space according to equation 2 below is 0-45 vol%. The contents of equations 1 and 2 are the same as disclosed in the specification. The electrochemical device can solve a problem of accelerating the capacity degradation, causing by reducing the reaction area on surfaces of the electrodes and further increasing the side reaction, through the gas generated from an oxidation reaction of the electrolyte due to a high voltage.
(FR)La présente invention concerne un dispositif électrochimique qui comprend : un boîtier; un ensemble électrode disposé à l'intérieur du boîtier et comprenant une électrode positive, une électrode négative et un séparateur intercalé entre l'électrode négative et l'électrode positive; et un électrolyte injecté dans le Boîtier où, sur la base du volume total (CV) d'un espace vide à l'intérieur du boîtier conformément à l'équation 1 ci-dessous, le volume (EV) d'un espace libre conformément à l'équation 2 ci-dessous varie entre 0 et 45 % en volume. Les contenus des équations 1 et 2 sont les mêmes que ceux décrits dans la description. Le dispositif électrochimique peut résoudre un problème d'accélération de la dégradation de la capacité, provoquée par la réduction de la zone de réaction sur des surfaces des électrodes et augmentant en outre la réaction latérale, au moyen du gaz produit à partir d'une réaction d'oxydation de l'électrolyte due à une tension élevée.
(KO)본 발명의 전기 화학 소자는 케이스, 상기 케이스 내부에 위치하며, 양극과 음극 및 상기 양극과 음극 사이에 개재된 세퍼레이터를 포함하는 전극 조립체, 그리고 상기 케이스 내부에 주입된 전해질를 포함하며, 하기 수학식 1에 따른 케이스 내부 빈 공간의 부피(CV) 전체에 대한 하기 수학식 2에 따른 자유 공간의 부피(EV)가 0 내지 45 부피%이다. 상기 수학식 1 및 2에 대한 내용은 명세서에 기재된 내용과 동일하다. 상기 전자 화학 소자는 고전압으로 인하여 전해질의 산화 반응으로 발생한 가스가 전극 표면의 반응 면적을 줄이고, 부반응을 더욱 증가시켜, 용량 퇴화를 가속시키는 문제를 해결할 수 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)