发明名称 |
Electrolyte for lithium batteries and its use, and method for increasing the safety of lithium batteries |
摘要 |
An electrolyte system for safer lithium batteries, with conductive lithium salt(s) and electrolyte liquid(s) containing partly fluorinated carbamate(s) of formula: (R<1>)(R<2>)N-C(=O)OR<3> (I), (in which R<1>, R<2> = linear 1-6 carbon (C) alkyl, branched 3-6C alkyl or 3-7C cycloalkyl; or R<1> and R<2> may be combined directly or with N and/or O to form a 3- to 7-membered ring which may also contain additional N atoms saturated with 1-3C alkyl, and in which the ring carbons may also carry 1-3C alkyl groups; one or more hydrogens in R<1> and R<2> may also be replaced by fluorine atoms; R<3> = partly- or per-fluorinated linear 1-6C alkyl or branched 3-6C alkyl, or partly fluorinated 3-7C cycloalkyl (optionally substituted with 1 or more 1-6C alkyl groups)). Also claimed are: (i) secondary lithium batteries with a greater level of safety containing the electrolyte system; and (ii) a method for increasing the safety of such batteries by using this system as the electrolyte. |
申请公布号 |
EP0887874(B1) |
申请公布日期 |
2010.09.22 |
申请号 |
EP19980110601 |
申请日期 |
1998.06.10 |
申请人 |
SOLVAY FLUOR GMBH |
发明人 |
APPEL, WOLFGANG, DR.;PASENOK, SERGEJ, DR. |
分类号 |
H01M6/16;H01M10/052;H01M10/0567;H01M10/0569 |
主分类号 |
H01M6/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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