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1. (WO2015119486) ELECTROCHEMICAL ELEMENT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2015/119486    International Application No.:    PCT/KR2015/001352
Publication Date: 13.08.2015 International Filing Date: 10.02.2015
IPC:
H01M 10/44 (2006.01), H01M 4/525 (2010.01), H01M 4/505 (2010.01), H01M 10/05 (2010.01)
Applicants: LG CHEM, LTD. [KR/KR]; 128 Yeoui-daero, Yeongdeungpo-gu, Seoul 150-721 (KR)
Inventors: SONG, Jooyong; (KR).
LEE, MinHee; (KR).
KIM, jihyun; (KR)
Agent: CHEON JEE INTERNATIONAL PATENT & LAW FIRM; (Dogok-dong, JungWoo Bldg.,) 2F Nonhyeon-ro 28-gil, 47 Gangnam-gu Seoul 135-854 (KR)
Priority Data:
10-2014-0014838 10.02.2014 KR
10-2014-0014862 10.02.2014 KR
Title (EN) ELECTROCHEMICAL ELEMENT
(FR) ÉLÉMENT ÉLECTROCHIMIQUE
(KO) 전기 화학 소자
Abstract: front page image
(EN)The electrochemical element of the present invention comprises: a case; an electrode assembly positioned within the case, the electrode assembly comprising a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode; an electrolyte which is injected into the case, wherein the volume (EV) of free space calculated from equation 2 is 0-45 volume% with respect to the entire volume (CV) of empty space within the case calculated from equation 1. The contents of equations 1 and 2 are as set forth in the description. The electrochemical element can solve the problem of gases produced by an oxidation reaction of the electrolyte due to high voltage leading to a reduction in reaction areas on the surfaces of the electrodes and to an increase in side reactions, resulting in accelerated deterioration of capacity.
(FR)L'élément électrochimique de la présente invention comporte : un coffret ; un ensemble d'électrodes disposé à l'intérieur du coffret, l'ensemble d'électrodes comprenant une électrode positive, une électrode négative et un séparateur interposé entre l'électrode positive et l'électrode négative ; un électrolyte qui est injecté dans le coffret, le volume (EV) de l'espace libre calculé à partir de l'équation 2 étant de 0 à 45 % en volume par rapport au volume total (CV) d'espace vide à l'intérieur du coffret calculé à partir de l'équation 1. Le contenu des équations 1 et 2 est tel que défini dans la description. L'élément électrochimique peut résoudre le problème des gaz produits par une réaction d'oxydation de l'électrolyte due à la haute tension menant à une réduction des zones de réaction sur les surfaces des électrodes et à une augmentation dans des réactions secondaires, ce qui résulte en une détérioration accélérée de capacité.
(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)