| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrolyte for a nonaqueous secondary battery having flame retardancy and excellent lithium-ion conductivity, and a high-output lithium secondary battery containing the electrolyte for a nonaqueous secondary battery. <P>SOLUTION: The electrolyte for a nonaqueous secondary battery contains the salt of metal ion of group I or II of the periodic table, and a siloxane oligomer containing a structure represented by the following formula (1) and having a number-average molecular weight in the range of 500 to 1500 in terms of styrene. In the formula (1), R<SP POS="POST">1</SP>represents a hydrocarbon radical or OR<SP POS="POST">2</SP>, and -OR<SP POS="POST">2</SP>represents an alkoxy group or a substituent represented by the following formula (2). The molar fraction of the group represented by the formula (2) is 5 mol% or higher of the total molar quantity of R<SP POS="POST">1</SP>and -OR<SP POS="POST">2</SP>in all of the structures represented by the general formula (1). <P>COPYRIGHT: (C)2012,JPO&INPIT |
