| 摘要 |
FIELD: electricity.SUBSTANCE: positive electrode has an active material of positive electrode which operates at the potential 4.5 V or higher with reference to lithium; and liquid electrolyte contains the fluorinated simple ether represented by the following formula (1), and the cyclic sulphonate represented by the following formula (2): (1).And in the formula (1) Rand R, both independently, designate alkylene group or the fluorinated alkylene group, and, at least, either Ror Ris the fluorinated alkylene group; and (2)where in the formula (2) A and B, both independently, designate alkylene group or the fluorinated alkylene group, and X designates unary bond or the group - OSO-.EFFECT: battery includes a positive electrode which can absorb and emit lithium, and liquid electrolyte.10 cl, 1 dwg, 5 tbl, 35 ex |
