| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium ion battery excellent in flame retardancy and cycle characteristics.SOLUTION: A lithium ion battery includes: a wound electrode group including a positive electrode, a negative electrode and a separator wound therein; and an electrolyte. The electrolyte includes an organic solvent, lithium hexafluorophosphate, lithium bis(fluorosulfonyl)imide, and a phosphazene compound. |
