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1. (WO2019041696) NON-AQUEOUS ELECTROLYTE FOR LITHIUM ION BATTERY AND LITHIUM ION BATTERY
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Pub. No.: WO/2019/041696 International Application No.: PCT/CN2017/119290
Publication Date: 07.03.2019 International Filing Date: 28.12.2017
IPC:
H01M 10/0567 (2010.01) ,H01M 10/0525 (2010.01) ,H01M 10/42 (2006.01)
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
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
42
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
Applicants:
深圳新宙邦科技股份有限公司 SHENZHEN CAPCHEM TECHNOLOGY CO., LTD. [CN/CN]; 中国广东省深圳市 坪山区马峦街道沙坣同富裕工业区 Shabo Tongfuyu Industry Zone, Maluan Street, Pingshan District Shenzhen, Guangdong 518118, CN
Inventors:
石桥 SHI, Qiao; CN
胡时光 HU, Shiguang; CN
艾关杰 AI, Guanjie; CN
林木崇 LIN, Muchong; CN
Agent:
深圳众鼎专利商标代理事务所(普通合伙) ZHONGDING INTELLECTUAL PROPERTY AGENCY; 中国广东省深圳市 龙岗区龙城街道中心城清林路546号城投商务中心4层/B Room B, 4F Chengtou Business Center, NO. 546 Qinglin Road, City center, Longcheng Street, Longgang District Shenzhen, Guangdong 518172, CN
Priority Data:
201710763113.030.08.2017CN
Title (EN) NON-AQUEOUS ELECTROLYTE FOR LITHIUM ION BATTERY AND LITHIUM ION BATTERY
(FR) ÉLECTROLYTE NON AQUEUX DESTINÉ À UNE BATTERIE AU LITHIUM-ION ET BATTERIE AU LITHIUM-ION
(ZH) 锂离子电池用非水电解液及锂离子电池
Abstract:
(EN) Disclosed are a non-aqueous electrolyte for a lithium ion battery, and a lithium ion battery comprising the non-aqueous electrolyte. The non-aqueous electrolyte comprises a solvent, a lithium salt and a maleic anhydride copolymer, wherein the weight average molecular weight of the maleic anhydride copolymer is less than or equal to 500,000; and on the basis that the total mass of the non-aqueous electrolyte is 100%, the mass percentage content of the maleic anhydride copolymer is 0.5% or more. The maleic anhydride copolymer enables the high temperature storage and cycle performances of the lithium ion battery to be effectively improved.
(FR) L'invention porte sur un électrolyte non aqueux destiné à une batterie au lithium-ion et sur une batterie au lithium-ion comprenant ledit électrolyte. L'électrolyte non aqueux comprend un solvant, un sel de lithium et un copolymère d'anhydride maléique, la masse moléculaire moyenne en poids du copolymère d'anhydride maléique étant inférieure ou égale à 500 000 ; et étant donné que la masse totale de l'électrolyte non aqueux est de 100 %, la teneur en pourcentage en masse du copolymère d'anhydride maléique est supérieure ou égale à 0,5 %. Le copolymère d'anhydride maléique permet d'améliorer efficacement le stockage à haute température et les performances de cycle de la batterie au lithium-ion.
(ZH) 提供一种锂离子电池用非水电解液以及包括所述非水电解液的锂离子电池,所述非水电解液包括溶剂、锂盐和马来酸酐共聚物,所述马来酸酐共聚物的重均分子量小于或等于50万;并且,以非水电解液的总质量为100%计,所述马来酸酐共聚物的质量百分含量为0.5%以上。所述马来酸酐共聚物使得锂离子电池的高温储存及循环性能得到有效提高。
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)