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1. (WO2013055188) CABLE-TYPE SECONDARY BATTERY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/055188    International Application No.:    PCT/KR2012/008401
Publication Date: 18.04.2013 International Filing Date: 15.10.2012
IPC:
H01M 10/05 (2010.01), H01M 4/02 (2006.01), H01M 4/64 (2006.01), H01M 4/62 (2006.01), H01M 10/0564 (2010.01)
Applicants: LG CHEM, LTD. [KR/KR]; 128, Yeoui-daero, Youngdungpo-gu, Seoul 150-721 (KR) (For All Designated States Except US).
KWON, Yo-Han [KR/KR]; (KR) (US only).
WOO, Sang-Wook [KR/KR]; (KR) (US only).
JUNG, Hye-Ran [KR/KR]; (KR) (US only).
KIM, Je-Young [KR/KR]; (KR) (US only)
Inventors: KWON, Yo-Han; (KR).
WOO, Sang-Wook; (KR).
JUNG, Hye-Ran; (KR).
KIM, Je-Young; (KR)
Agent: PHIL & ONZI INT'L PATENT & LAW FIRM; 8F., 63, Banpo-daero, Seocho-gu, Seoul 137-872 (KR)
Priority Data:
10-2011-0104875 13.10.2011 KR
10-2012-0114117 15.10.2012 KR
Title (EN) CABLE-TYPE SECONDARY BATTERY
(FR) BATTERIE SECONDAIRE À CÂBLE
(KO) 케이블형 이차전지
Abstract: front page image
(EN)The present invention provides a cable-type secondary battery comprising: a lithium-ion core supply portion containing an electrolyte; an inner electrode that encases the outer surface of the lithium-ion core supply portion, and comprises a screw electrode in which at least two wire-type current collectors, which are coated on the outer surfaces thereof with an inner electrode active material, are twisted in a screw shape; a separation layer for preventing a short circuit of an electrode that encases the outer surface of the inner electrode; and an outer electrode provided with an outer electrode active material layer and an outer current collector, wherein the cable-type secondary battery has a horizontal cross section having a specific shape and extends in the lengthwise direction. The lithium-ion core supply portion, according to the present invention, is positioned inside the inner electrode, which has an open structure containing the screw electrode, and the electrolyte in the lithium-ion core supply portion easily penetrates into the active material in the electrode, thereby facilitating supply and exchange of lithium-ion. As a result, the cable-type secondary battery according to the present invention has superior battery capacity and cycle properties by having the lithium-ion core supply portion.
(FR)La présente invention concerne une batterie secondaire à câble comprenant une partie centrale d'alimentation en lithium-ion contenant un électrolyte; une électrode intérieure qui revêt la surface extérieure de la partie centrale d'alimentation en lithium-ion et comprend une électrode vissée dans laquelle sont installés au moins deux d'appareils de prise de courant à câble enrobés, sur leurs surfaces extérieures d'une matière active d'électrode intérieure, lesquels appareils sont torsadés en forme de vis; une couche de séparation pour empêcher un court-circuit d'une électrode qui revêt la surface extérieure de l'électrode intérieure, et une électrode extérieure pourvue d'une couche d'une matière active d'électrode extérieure et d'un appareil de prise de courant extérieur, la batterie secondaire à câble présentant une section transversale horizontale ayant une forme spécifique et s'étendant dans le sens de sa longueur. La partie centrale d'alimentation en lithium-ion, selon la présente invention, est disposée à l'intérieur de l'électrode intérieure, laquelle présente une structure ouverte contenant l'électrode vissée et l'électrolyte dans la partie centrale d'alimentation en lithium-ion pénètre facilement dans la matière active dans l'électrode, ce qui permet de faciliter l'alimentation et l'échange de lithium-ion. Ainsi, la batterie secondaire à câble selon l'invention présente une capacité de batterie supérieure et des propriétés de cycle supérieures grâce à la présence de la partie centrale d'alimentation en lithium-ion.
(KO)본 발명은 전해질을 포함하는 리튬이온 공급 코어부; 상기 리튬이온 공급 코어부의 외면을 둘러싸며 형성되며, 내부전극 활물질이 외면에 코팅된 2 이상의 와이어형 집전체가 서로 나선형으로 꼬여진 나선전극을 포함하는 내부전극; 상기 내부전극의 외면을 둘러싸며 형성된 전극의 단락을 방지하는 분리층; 및 상기 분리층의 외면을 둘러싸며 형성되고, 외부전극 활물질층과 외부집전체를 구비하는 외부전극;을 포함하는 소정 형상의 수평 단면을 가지고 길이 방향으로 연장된 케이블형 이차전지를 제공한다. 본 발명의 전해질을 포함하는 리튬이온 공급 코어부는 내부전극의 내부에 위치하고 있으며 상기 내부전극은 나선전극을 포함하는 열린 구조를 가지므로, 이러한 리튬이온 공급 코어부의 전해질은 전극의 활물질으로의 침투가 용이하여, 리튬이온의 공급 및 리튬이온의 교환을 용이하게 할 수 있다. 따라서, 본 발명의 케이블형 이차전지는 리튬이온 공급 코어부를 구비하고 있으므로 전지의 용량 특성 및 사이클 특성이 우수하다.
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, IS, JP, KE, KG, KM, 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, 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, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)