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1. (WO2014193148) NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/193148    International Application No.:    PCT/KR2014/004731
Publication Date: 04.12.2014 International Filing Date: 27.05.2014
IPC:
H01M 10/0568 (2010.01), H01M 10/052 (2010.01)
Applicants: LG CHEM, LTD. [KR/KR]; 128, Yeoui-daero, Yeongdeungpo-gu, Seoul 150-721 (KR)
Inventors: LIM, Young Min; (KR).
LEE, Chul Haeng; (KR).
YANG, Doo Kyung; (KR).
KIM, Shul Kee; (KR)
Agent: BAE, KIM & LEE IP GROUP; 11th Floor, 343, Gangnam-daero, Seocho-gu, Seoul 137-858 (KR)
Priority Data:
10-2013-0059920 27.05.2013 KR
Title (EN) NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME
(FR) ÉLECTROLYTE NON AQUEUX ET BATTERIE SECONDAIRE AU LITHIUM COMPRENANT CE DERNIER
(KO) 비수성 전해액 및 이를 포함하는 리튬 이차전지
Abstract: front page image
(EN)The present invention provides a non-aqueous electrolyte comprising: a non-aqueous organic solvent comprising propylene carbonate (PC) and an ester-based solvent; and lithium bis(fluorosulfonyl)imide (LiFSI), and a lithium secondary battery comprising the same. According to the non-aqueous electrolyte of the present invention, the lithium secondary battery comprising the same forms a firm SEI film at a negative electrode at the time of initial charging, and is thereby not only capable of improving low-temperature, room-temperature, and high-temperature output characteristics, but also capable of enhancing both a high-temperature cycle characteristic and a capacity characteristic after high-temperature storage.
(FR)La présente invention porte sur un électrolyte non aqueux comprenant : un solvant organique non aqueux comprenant du carbonate de propylène (PC) et un solvant à base d’ester ; et du bis(fluorosulfonyl)imide de lithium (LiFSI), et sur une batterie secondaire au lithium comprenant ce dernier. Selon l’électrolyte non aqueux de la présente invention, la batterie secondaire au lithium comprenant ce dernier forme un film SEI ferme au niveau d’une électrode négative au moment de la charge initiale, et est ainsi non seulement capable d’améliorer des caractéristiques de sortie à faible température, température de chambre, et température élevée, mais est également capable d’améliorer une caractéristique de cycle à température élevée et une caractéristique de capacité après un stockage à température élevée.
(KO)본 발명은 프로필렌 카보네이트(PC) 및 에스테르계 용매를 포함하는 비수성 유기 용매; 및 리튬비스플루오로설포닐이미드(Lithium bis(fluorosulfonyl)imide; LiFSI)를 포함하는 것을 특징으로 하는 비수성 전해액 및 이를 포함하는 리튬 이차전지를 제공한다. 본 발명의 비수성 전해액에 의하면, 이를 포함하는 리튬 이차전지의 초기 충전시 음극에서 견고한 SEI 막을 형성시킴으로써 저온, 상온 및 고온 출력 특성을 개선할 수 있을 뿐 아니라, 고온 사이클 특성 및 고온 저장 후 용량 특성을 동시에 향상시킬 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)