(En) HIGH VOLTAGE ELECTROLYTE and LITHIUM ION BATTERY Title

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Title (en) HIGH VOLTAGE ELECTROLYTE AND LITHIUM ION BATTERY Title (de) HOCHSPANNUNGSELEKTROLYT UND LITHIUM-IONEN-BATTERIE Title (fr) ÉLECTROLYTE À HAUTE TENSION ET BATTERIE LITHIUM ION Publication EP 2945213 A1 20151118 (EN) Application EP 15167876 A 20150515 Priority • US 201461996746 P 20140515 • US 201514709525 A 20150512 Abstract (en) The present application discloses a high voltage electrolyte including an electrolyte solvent which includes a mixture of a dinitrile solvent and a nitrile solvent and is stable at voltage of about 5 V or above. The dinitrile solvent may include at least one selected from the group consisting of malononitrile, succinonitrile, glutaronitrile, adiponitrile, pimelonitrile, suberonitrile, azelanitrile and sebaconitrile. The nitrile solvent may include at least one selected from the group consisting of acetonitrile, propionitrile, butyronitrile, pivalonitrile and capronitrile. The mixture is especially mentioned as a mixture of adiponitrile with butyronitrile ADN:BN in a volume ratio of 75:25. The present application also discloses a lithium ion battery including the above high voltage electrolyte. The lithium ion battery exhibits a cyclic performance of greater than about 300 cycles and with a capacity retention of greater than about 80%. IPC 8 full level H01M 10/0569 (2010.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01) CPC (source: CN EP US) H01M 10/0525 (2013.01 - CN); H01M 10/0567 (2013.01 - CN EP US); H01M 10/0569 (2013.01 - CN EP US); H01M 10/0525 (2013.01 - EP US); H01M 2300/0037 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP) Citation (applicant) JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 151, 2004, pages A1659 - A1669 Citation (search report) • [XI] US 2013224535 A1 20130829 - MATSUOKA NAOKI [JP], et al • [X] WO 2013062056 A1 20130502 - ASAHI CHEMICAL IND [JP], et al & EP 2772981 A1 20140903 - ASAHI CHEMICAL IND [JP] • [X] US 2006024577 A1 20060202 - SCHWAKE ANDREE [DE] • [X] US 2010233549 A1 20100916 - KIM YOUNG-SOO [KR], et al • [A] EP 2302725 A1 20110330 - SAMSUNG SDI CO LTD [KR] • [A] YASER ABU-LEBDEH AND ISOBEL DAVIDSON: "High-Voltage Electrolytes Based on Adiponitrile for Li-Ion Batteries", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, ELECTROCHEMICAL SOCIETY, vol. 156, no. 1, 21 November 2008 (2008-11-21), pages A60 - A65, XP007907059, ISSN: 0013-4651, DOI: 10.1149/1.3023084 Cited by CN112467203A; EP3235046B1 Designated contracting state (EPC) AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated extension state (EPC) BA ME DOCDB simple family (publication) EP 2945213 A1 20151118; EP 2945213 B1 20170712; CN 105098246 A 20151125; CN 105098246 B 20180119; US 2015333373 A1 20151119; US 9666906 B2 20170530 DOCDB simple family (application) EP 15167876 A 20150515; CN 201510247185 A 20150514; US 201514709525 A 20150512.

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