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1. (WO2018120793) ELECTROLYTE AND SECONDARY BATTERY
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Pub. No.: WO/2018/120793 International Application No.: PCT/CN2017/093863
Publication Date: 05.07.2018 International Filing Date: 21.07.2017
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1号 1 Xingang Road, Zhangwan Town, Jiaocheng District Ningde, Fujian 352100, CN
Inventors:
王小梅 WANG, Xiaomei; CN
付成华 FU, Chenghua; 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 ZHANG, Xiangkun, A1908, No.2, Fuchengmenwai Avenue Xicheng District Beijing 100037, CN
Priority Data:
201611219516.026.12.2016CN
Title (EN) ELECTROLYTE AND SECONDARY BATTERY
(FR) ÉLECTROLYTE ET BATTERIE RECHARGEABLE
(ZH) 电解液及二次电池
Abstract:
(EN) An electrolyte and a secondary battery. The electrolyte comprises an electrolyte salt, an organic solvent, and an additive. The organic solvent comprises a carboxylate compound. The additive comprises a dinitrile compound, an aromatic compound overcharge additive, and cyclic sulfate and/or cyclic sulfonate. When the electrolyte is applied in the secondary battery, the rate performance, storage performance at a high temperature, circulation performance at a high temperature, and overcharge safety performance of the secondary battery may be simultaneously improved.
(FR) L'invention porte sur un électrolyte et sur une batterie rechargeable. L'électrolyte comprend un sel d'électrolyte, un solvant organique et un additif. Le solvant organique comprend un composé carboxylate. L'additif comprend un composé dinitrile, un additif de surcharge de composé aromatique, et un sulfate cyclique et/ou un sulfonate cyclique. Lorsque l'électrolyte est appliqué dans la batterie rechargeable, les performances de vitesse, les performances de stockage à haute température, les performances de circulation à haute température et les performances de sécurité de surcharge de la batterie rechargeable peuvent être simultanément améliorées.
(ZH) 一种电解液及二次电池。所述电解液包括电解质盐、有机溶剂以及添加剂。所述有机溶剂包括羧酸酯化合物。所述添加剂包括二腈化合物、芳香化合物过充添加剂以及环状硫酸酯和/或环状磺酸酯。当所述电解液应用到二次电池中后能够同时提高二次电池的倍率性能、高温存储性能、高温循环性能以及过充安全性能。
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)