| 摘要 |
The present invention relates to a lithium secondary battery, comprising
a positive electrode;
a negative electrode; and
a non-aqueous electrolyte solution,
wherein the non-aqueous electrolyte solution contains
a phosphate polymer represented by the following formula (1):
wherein R 1 to R 5 each independently represents aliphatic hydrocarbon group or fluorinated aliphatic hydrocarbon group, wherein the group may have a substituent, and n represents an integer of 1 or more, with the proviso that when n is 2 or more, two or more R 1 (s) may be the same as, or different from each other and two or more R 4 (s) may be the same as, or different from each other; and
a fluorinated phosphate represented by the following formula (2):
wherein R 6 to R 8 each independently represents aliphatic hydrocarbon group or fluorinated aliphatic hydrocarbon group, wherein the group may have a substituent, with the proviso that at least one of R 6 to R 8 is fluorinated aliphatic hydrocarbon group. |
