| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrolyte for a lithium secondary battery causing no deterioration of its capacity and life characteristics, suitable for a square battery and a pouch battery, and capable of preventing a battery expansion phenomenon even in high temperatures. <P>SOLUTION: This electrolyte for the lithium secondary battery contains a nonaqueous organic solvent, an additive expressed by the chemical formula 1, and lithium salt. In this chemical formula, X is a functional group containing Y, Y are 3, 4, 5, 6 group elements in the periodic table, A is O or NR, and R is an alkyl group having 1-6 carbons. However, if X is CO, A is NR. This electrolyte for the lithium secondary battery can be adapted for the lithium secondary battery containing it. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
