公开(公告)号：US09590272B2

公开(公告)日：2017-03-07

申请号：US14277146

申请日：2014-05-14

Applicant: LG Chem, Ltd.

Inventor： Yu-Ha An ,  Doo Kyung Yang ,  Chul-Haeng Lee ,  Young-Min Lim ,  Jong-Ho Jeon

IPC: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0587 ,  H01M10/0568

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2300/0028 ,  H01M2300/004 ,  Y02E60/122 ,  Y02T10/7011

Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, comprising a sulfolane-based additive; and a lithium secondary battery using the same. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention comprises an ionizable lithium salt; an organic solvent; and a sulfolane compound of formula (I), the sulfolane compound being present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total weight of the lithium salt and the organic solvent. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention can exhibit superior storage characteristic and life cycle at a high temperature, with maintaining good output characteristic at a low temperature.

Abstract translation: 本发明涉及一种锂二次电池用非水电解液，其包含环丁砜系添加剂， 和使用该二次电池的锂二次电池。 本发明的锂二次电池用非水电解液含有电离锂盐， 有机溶剂; 和式（I）的环丁砜化合物，相对于锂盐和有机溶剂的总重量为100重量份，环丁砜化合物的存在量为0.1〜5重量份。 本发明的锂二次电池用非水电解液可以在高温下表现出优异的储存特性和使用寿命，同时在低温下保持良好的输出特性。

公开(公告)号：US09337512B2

公开(公告)日：2016-05-10

申请号：US13749769

申请日：2013-01-25

Applicant: LG CHEM, LTD.

Inventor： Yu-Ha An ,  Sung-Hoon Yu ,  Bo-Ra Shin

IPC: H01M6/14 ,  H01M10/0567 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  Y02E60/122

Abstract: Disclosed is a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. The non-aqueous electrolyte including a lithium salt and an organic solvent may further include, as an additive, (a) halogenated alkyl silane and (b) any one of (b-1) succinic anhydride, (b-2) (meth)acrylic acid ester of pentaerythritol or dipentaerythritol, and (b-3) mixtures thereof. The non-aqueous electrolyte for a lithium secondary battery may improve the high-temperature storage performance and the cycling performance.

Abstract translation: 公开了一种用于锂二次电池的非水电解质和包含该锂二次电池的锂二次电池。 包含锂盐和有机溶剂的非水电解质还可以包含（a）卤代烷基硅烷和（b）（b-1）琥珀酸酐，（b-2）（甲基） 季戊四醇或二季戊四醇的丙烯酸酯和（b-3）它们的混合物。 用于锂二次电池的非水电解质可以提高高温存储性能和循环性能。

公开(公告)号：US20140242472A1

公开(公告)日：2014-08-28

申请号：US14277146

申请日：2014-05-14

Applicant: LG Chem, Ltd.

Inventor： Yu-Ha An ,  Doo Kyung Yang ,  Chul-Haeng Lee ,  Young-Min Lim ,  Jong-Ho Jeon

IPC: H01M10/0567 ,  H01M10/052

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2300/0028 ,  H01M2300/004 ,  Y02E60/122 ,  Y02T10/7011

Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, comprising a sulfolane-based additive; and a lithium secondary battery using the same. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention comprises an ionizable lithium salt; an organic solvent; and a sulfolane compound of formula (I), the sulfolane compound being present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total weight of the lithium salt and the organic solvent. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention can exhibit superior storage characteristic and life cycle at a high temperature, with maintaining good output characteristic at a low temperature.

Abstract translation: 本发明涉及一种锂二次电池用非水电解液，其包含环丁砜系添加剂， 和使用该二次电池的锂二次电池。 本发明的锂二次电池用非水电解液含有电离锂盐， 有机溶剂; 和式（I）的环丁砜化合物，相对于锂盐和有机溶剂的总重量为100重量份，环丁砜化合物的存在量为0.1〜5重量份。 本发明的锂二次电池用非水电解液可以在高温下表现出优异的储存特性和使用寿命，同时在低温下保持良好的输出特性。