Patent number: 7482099
Abstract: The electrolyte for a lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive of the following Formula 1: wherein, X is O, S, CR2 or NR, where here R is H, a halogen, or an alkyl having a carbon number of less than or equal to 8, or neighboring alkyl groups are combined to each other to form a cycle or hetero cycle, Y1, and Y2 are the same or different from each other and selected from O, S, CR2, and NR, where here R is H, a halogen, or an alkyl having a carbon number of less than or equal to 8, or neighboring alkyl groups are combined to each other to form a cycle or hetero cycle, Y3 is S, CR2, or NR, where here R is H, a halogen, or an alkyl having a carbon number of less than or equal to 8, or neighboring alkyl groups are combined to each other to form a cycle or hetero cycle, and Ra to Rd are the same or different from each other and selected from H, a halogen, an alkoxy group having a carbon number of less than or equal to 8, or an unsaturated or saturated alkyl group
Type:
Grant
Filed:
October 26, 2005
Date of Patent:
January 27, 2009
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Dae-Yup Shin, Dong-Hyun Jung, Soo-Jin Park, Kyoung-Han Yew, Hyun-Jeong Lim
Patent number: RE40302
Abstract: Provided are a polymeric electrolyte or a nonaqueous electrolyte that can improve a transport rate of charge carrier ions by adding a compound having boron atoms in the structure, preferably one or more selected from the group consisting of compounds represented by the following general formulas (1) to (4), and an electric device such as a cell or the like using the same. wherein R11, R12, R13, R14, R15, R16, R21, R22, R23, R24, R25, R26, R27, R28, R31, R32, R33, R34, R35, R36, R37, R38, R39, R310, R41, R42, R43, R44, R45, R46, R47, R48, R49, R410, R411 and R412 each represent a hydrogen atom, a halogen atom or a monovalent group, or represent groups bound to each other to form a ring, and Ra, Rb, Rc and Rd each represent a group having a site capable of being bound to boron atoms which are the same or different.
Type:
Grant
Filed:
August 28, 2000
Date of Patent:
May 6, 2008
Assignee:
Dai-Ichi Kogyo Seiyaku Co. Ltd.
Inventors:
Masahito Nishiura, Michiyuki Kono, Masayoshi Watanabe