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1. (WO2018099097) ELECTROLYTE AND SECONDARY LITHIUM BATTERY
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Pub. No.: WO/2018/099097 International Application No.: PCT/CN2017/093745
Publication Date: 07.06.2018 International Filing Date: 20.07.2017
IPC:
H01M 10/0567 (2010.01) ,H01M 10/0525 (2010.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
056
characterized by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564
the electrolyte being constituted of organic materials only
0566
Liquid materials
0567
characterised by the additives
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
052
Li-accumulators
0525
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
Applicants:
宁德时代新能源科技股份有限公司 CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED [CN/CN]; 中国福建省宁德市 蕉城区漳湾镇新港路2号 2 Xingang Road, Zhangwan Town, Jiaocheng District Ningde, Fujian 352100, CN
Inventors:
张明 ZHANG, Ming; CN
韩昌隆 HAN, Changlong; CN
张翠 ZHANG, Cui; CN
周晓崇 ZHOU, Xiaochong; CN
鞠峰 JU, Feng; CN
Agent:
北京五洲洋和知识产权代理事务所(普通合伙) BEIJING WUZHOUYANGHE & PARTNERS; 中国北京市 西城区阜成门外大街2号A1908张向琨 A1908, No.2, Fuchengmenwai Avenue Xicheng District, ZHANG, Xiangkun Beijing 100037, CN
Priority Data:
201611073063.529.11.2016CN
Title (EN) ELECTROLYTE AND SECONDARY LITHIUM BATTERY
(FR) ÉLECTROLYTE ET BATTERIE SECONDAIRE AU LITHIUM
(ZH) 电解液及二次锂电池
Abstract:
(EN) Provided are an electrolyte and a secondary lithium battery. The electrolyte comprises a lithium salt, an organic solvent and an additive. The additive comprises: fluoroborate and lithium difluorophosphate. When the electrolyte is applied in a secondary lithium battery, the secondary lithium battery has superior cycling performance and storage performance at a high temperature, favorable discharge performance at a low temperature and favorable high-magnification charging performance. Occurrence of lithium plating in a secondary lithium battery at a low temperature can be effectively suppressed.
(FR) L'invention concerne une électrolytique et une batterie secondaire au lithium. L'électrolyte comprend un sel de lithium, un solvant organique et un additif. L'additif comprend : du fluoroborate et du difluorophosphate de lithium. Lorsque l'électrolyte est appliqué dans une batterie secondaire au lithium, la batterie secondaire au lithium présente une performance de cyclage et une performance de stockage supérieures à une température élevée, une performance de décharge favorable à basse température et une performance de charge à fort grossissement favorable. L'apparition d'un placage de lithium dans une batterie secondaire au lithium à basse température peut être efficacement supprimée.
(ZH) 本发明提供一种电解液及二次锂电池。所述电解液包括锂盐、有机溶剂以及添加剂。所述添加剂包括氟代硼酸酯以及二氟磷酸锂。当所述电解液应用到二次锂电池中后,二次锂电池能同时具有优良的高温循环性能、高温存储性能、低温放电性能和大倍率充电性能,且二次锂电池的低温析锂情况也得到明显抑制。
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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: Chinese (ZH)
Filing Language: Chinese (ZH)