| 摘要 |
The invention provides a stable positive-electrode mixture slurry that is not subject to gelation, a positive electrode with abundant flexibility, and a lithium secondary battery with excellent battery characteristics. The slurry comprises a positive-electrode active material, a binder, and an organic solvent, the positive-electrode active material is a lithium-containing complex metal oxide represented by Formula: Li x M 1 y M 2 1-y O 2 (wherein 0.4 ‰¤ x ‰¤ 1; 0.3 ‰¤ y ‰¤ 1; M 1 is at least one selected from Ni or Mn; and M 2 is at least one selected from Co, Al, or Fe); and the binder comprises a fluorine-containing polymer represented by Composition Formula: (VDF) m (TFE) n (HFP) l (wherein VDF is a structural unit from vinylidene fluoride; TFE is a structural unit from tetrafluoroethylene; HFP is a structural unit from hexafluoropropylene; and 0.45 ‰¤ m ‰¤ 1; 0 ‰¤ n ‰¤ 0.5; and 0 ‰¤ l ‰¤ 0.1, and m + n + l = 1). |
