公开(公告)号：KR100853615B1

公开(公告)日：2008-08-22

申请号：KR1020070041012

申请日：2007-04-26

Applicant: 성균관대학교산학협력단

Inventor： 김정구 ,  심은기 ,  남태흠

IPC: H01M10/05

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0028 ,  Y02E60/122

Abstract: An electrolyte for a lithium ion secondary battery is provided to improve flame resistance and thermal stability, to reduce the internal resistance of a battery, and to improve the lifespan characteristics of a battery. An electrolyte for a lithium ion secondary battery comprises a non-aqueous organic solvent, a lithium salt, triphenyl phosphate, vinyl ethylene carbonate and biphenyl additive. Particularly, the electrolyte comprises 0.1-20 wt% of triphenyl phosphate, 0.05-10 wt% of vinyl ethylene carbonate, and 0.05-10 wt% of biphenyl additive based on the weight of the electrolyte. The lithium salt is at least one selected from the group consisting of LiPF6, LiBF4, LiAsF6, LiClO4, LiCF3SO3, LiC(SO2CF3)3, LiN(CF3SO2)2 and LiCH(CF3SO2)2.

Abstract translation: 提供了一种用于锂离子二次电池的电解质，以提高阻燃性和热稳定性，降低电池的内部电阻，并提高电池的寿命特性。 用于锂离子二次电池的电解质包括非水有机溶剂，锂盐，磷酸三苯酯，乙烯基碳酸亚乙酯和联苯添加剂。 特别地，基于电解质的重量，电解质包含0.1-20重量％的磷酸三苯酯，0.05-10重量％的乙烯基碳酸亚乙酯和0.05-10重量％的联苯添加剂。 锂盐是选自LiPF 6，LiBF 4，LiAsF 6，LiClO 4，LiCF 3 SO 3，LiC（SO 2 CF 3）3，LiN（CF 3 SO 2）2和LiCH（CF 3 SO 2）2中的至少一种。

公开(公告)号：KR1020090107794A

公开(公告)日：2009-10-14

申请号：KR1020080033250

申请日：2008-04-10

Applicant: 현대자동차주식회사 ,  성균관대학교산학협력단

Inventor： 김사흠 ,  안승호 ,  김정구 ,  심은기 ,  남태흠

IPC: H01M10/05

CPC classification number: H01M10/0567 ,  H01M10/0413 ,  H01M10/0525 ,  H01M10/0568 ,  H01M2300/0028 ,  Y02E60/122

Abstract: PURPOSE: An organic electrolyte for a lithium-ion battery is provided to reduce initial irreversible capacity of a battery and to internal resistance of a battery after charge and discharge cycle, thereby improving charge and discharge cycle performance of a battery. CONSTITUTION: An organic electrolyte for a lithium-ion battery includes a lithium salt, an organic solvent, tris(2-chloroethyl) phosphate. The content of tris(2- chloroethyl) phosphate is 0.1 ~ 30 weight%. The lithium salt is used with one or two or more kinds selected from the group consisting of LiPF6, LiBF4, LiAsF6, LiClO4, LiCF3SO3, LiCF3SO3, LiC(SO2CF3)3, LiN(CF3SO2)2 and LiCH(CF3SO2)2. The organic solvent is one or two or more kinds of mixture selected from the group consisting of carbonate, ester, ether, and ketone.

Abstract translation: 目的：提供一种用于锂离子电池的有机电解质，以减少电池的初始不可逆容量和充放电循环后电池的内部电阻，从而提高电池的充放电循环性能。 构成：用于锂离子电池的有机电解质包括锂盐，有机溶剂，磷酸三（2-氯乙基）酯。 磷酸三（2-氯乙基）的含量为0.1〜30重量％。 锂盐与选自LiPF 6，LiBF 4，LiAsF 6，LiClO 4，LiCF 3 SO 3，LiCF 3 SO 3，LiC（SO 2 CF 3）3，LiN（CF 3 SO 2）2和LiCH（CF 3 SO 2）2的一种或两种以上使用。 有机溶剂是选自碳酸酯，酯，醚和酮的一种或两种以上的混合物。

公开(公告)号：KR1020080112490A

公开(公告)日：2008-12-26

申请号：KR1020070060963

申请日：2007-06-21

Applicant: 성균관대학교산학협력단

Inventor： 김정구 ,  심은기 ,  남태흠

IPC: H01M10/05

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M2300/0028 ,  Y02E60/122

Abstract: An organic electrolyte for a lithium-ion battery added with triphenyl phosphate and biphenyl, and a lithium-ion battery comprising the same are provided to improve thermal characteristic of the electrolyte while not affecting the battery characteristic. A lithium ion battery comprises a positive electrode(18) containing a positive active material which can perform intercalation and deintercalation of the battery lithium ion reversibly; a negative electrode(12) containing a negative active material which can perform intercalation and deintercalation of the battery lithium ion reversibly; a separation film(16) preventing the short circuit, which is combined between the positive electrode and negative electrode; and electrolyte.

Abstract translation: 添加了磷酸三苯酯和联苯的锂离子电池的有机电解质和包含该有机电解质的锂离子电池被提供以改善电解质的热特性，同时不影响电池特性。 锂离子电池包括能够可逆地进行电池锂离子的插入和脱嵌的正极活性物质的正极（18） 含有负极活性物质的负极（12），其能够可逆地进行电池锂离子的插入和脱嵌; 分离膜（16），其防止短路，其组合在正极和负极之间; 和电解质。

公开(公告)号：KR100863887B1

公开(公告)日：2008-10-15

申请号：KR1020070060965

申请日：2007-06-21

Applicant: 성균관대학교산학협력단

Inventor： 김정구 ,  심은기 ,  남태흠

IPC: H01M10/05

CPC classification number: H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  Y02T10/7011

Abstract: An organic electrolyte for a lithium ion battery is provided to realize improved thermal properties and to impart improved quality to a battery by using a flame resistance additive to an electrolyte. An organic electrolyte for a lithium ion battery comprises a lithium salt and an organic solvent, and further comprises diphenyloctyl phosphate. The organic electrolyte comprises diphenyloctyl phosphate in an amount of 0.1-20 wt% based on the total weight of the electrolyte. The lithium salt is at least one salt selected from the group consisting of LiPF6, LiBF4, LiAsF6, LiClO4, LiCF3SO3, LiCF3SO3, LiC(SO2CF3)3, LiN(CF3SO2)2 and LiCH(CF3SO2)2.

Abstract translation: 提供了用于锂离子电池的有机电解质，以通过使用阻燃添加剂到电解质来实现改进的热性能并且赋予电池改进的质量。 用于锂离子电池的有机电解质包括锂盐和有机溶剂，并且还包括磷酸二苯基辛基酯。 有机电解质包含基于电解质总重量0.1-20重量％的二苯基辛基磷酸酯。 锂盐是选自LiPF 6，LiBF 4，LiAsF 6，LiClO 4，LiCF 3 SO 3，LiCF 3 SO 3，LiC（SO 2 CF 3）3，LiN（CF 3 SO 2）2和LiCH（CF 3 SO 2）2中的至少一种盐。