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1. (WO2014182062) ELECTRODE FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY INCLUDING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/182062    International Application No.:    PCT/KR2014/004046
Publication Date: 13.11.2014 International Filing Date: 07.05.2014
IPC:
H01M 4/13 (2010.01), H01M 4/64 (2006.01), H01M 4/02 (2006.01), H01M 10/04 (2006.01), H01M 10/058 (2010.01), H01M 10/052 (2010.01)
Applicants: LG CHEM, LTD. [KR/KR]; 128, Yeoui-daero, Yeongdeungpo-gu, Seoul 150-721 (KR)
Inventors: KWON, Yo-Han; (KR).
JUNG, Hye-Ran; (KR).
KIM, Eun-Kyung; (KR).
KIM, Je-Young; (KR).
KIM, Hyo-Mi; (KR)
Agent: PHIL & ONZI INT'L PATENT & LAW FIRM; 8F., 63, Banpo-daero, Seocho-gu, Seoul 137-872 (KR)
Priority Data:
10-2013-0051564 07.05.2013 KR
10-2014-0054278 07.05.2014 KR
Title (EN) ELECTRODE FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY INCLUDING SAME
(FR) ÉLECTRODE POUR BATTERIE SECONDAIRE, SON PROCÉDÉ DE FABRICATION, BATTERIE SECONDAIRE ET BATTERIE SECONDAIRE À CÂBLE LA COMPRENANT
(KO) 이차전지용 전극, 그의 제조방법, 그를 포함하는 이차전지 및 케이블형 이차전지
Abstract: front page image
(EN)The present invention relates to an electrode for a sheet-type secondary battery, a method for manufacturing the same, and a secondary battery and a cable-type secondary battery including the same, the electrode comprising: a current collector; an electrode active material layer formed on one side of the current collector; a conductive layer formed on the electrode active material layer and including a conductive material and a binder; and a porous first support layer formed on the conductive layer. The present invention remarkably improves the flexibility of an electrode by introducing a support layer to at least one side of a sheet-type electrode, and prevents a capacity reduction of a battery and improves a cycle life characteristic of the battery by preventing an electrode active material layer from deviating from a current collector even though an extreme external force is applied to the battery. Furthermore, a porous support layer is provided such that an electrolyte can be smoothly introduced to an electrode active material layer, and the electrolyte is impregnated into pores of the porous support layer so as to prevent an increase of resistance within a battery, thereby preventing performance deterioration of the battery.
(FR)La présente invention concerne une électrode pour une batterie secondaire en feuille, son procédé de fabrication, une batterie secondaire et une batterie secondaire à câble la comprenant, l'électrode comprenant : un collecteur de courant; une couche de matériau actif d'électrode formée sur un côté du collecteur de courant; une couche conductrice formée sur la couche de matériau actif d'électrode et comprenant un matériau conducteur et un liant; et une première couche de support poreuse formée sur la couche conductrice. La présente invention améliore considérablement la flexibilité d'une électrode par l'introduction d'une couche de support sur au moins un côté d'une électrode en feuille, empêche la réduction de capacité d'une batterie et améliore la caractéristique de durée de cycle de la batterie en empêchant une couche de matériau actif d'électrode de s'écarter d'un collecteur de courant même si une force externe extrême est appliquée sur la batterie. En outre, une couche de support poreuse est prévue de telle sorte qu'un électrolyte puisse être introduit en douceur dans une couche de matériau actif d'électrode, et l'électrolyte est imprégné dans les pores de la couche poreuse de support de manière à empêcher une augmentation de la résistance dans une batterie, ce qui empêche la détérioration de la performance de la batterie.
(KO)본 발명은, 집전체; 상기 집전체의 일면에 형성된 전극 활물질층; 상기 전극 활물질층상에 형성되며, 도전재와 바인더를 포함하는 도전층; 및 상기 도전층상에 형성된 다공성의 제1 지지층;을 포함하는 시트형 이차전지용 전극, 그의 제조방법, 그를 포함하는 이차전지 및 케이블형 이차전지에 관한 것이다. 본 발명에 따르면, 시트형 전극의 적어도 일면에 지지층을 도입함으로써 전극의 유연성을 크게 향상시킬 수 있고, 전지에 극심한 외력이 작용하더라도 집전체에서 전극 활물질층이 탈리되는 현상을 방지해 줌으로써, 전지의 용량 감소를 방지하고, 전지의 사이클 수명특성을 향상시킬 수 있다. 나아가, 다공성의 지지층을 구비함으로써 전극 활물질층으로의 전해액 유입이 원활하고, 상기 다공성 지지층의 기공으로 전해액이 함침됨으로써 전지 내의 저항증가를 방지하여, 전지의 성능저하를 방지할 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, LT, 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, 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)