| 摘要 |
PURPOSE: A solid electrolyte for a lithium secondary battery is provided to provide a lithium secondary battery with excellent input and output characteristics by having very excellent ion conductivity. CONSTITUTION: A solid electrolyte for a lithium secondary battery comprises a compound in chemical formula 1: Li_(1+x)Ti_(2-x)Al_xM_y(PO_4)_(3-y), and glass-based oxide which is LiPO_3, Li_2O-B_2O_3, or a combination thereof. In chemical formula 1, x is an integer from 0-1, M is Si or Ge, y is an integer from 0-1, and a content of glass-based oxide is 1-20 weight%. The lithium secondary battery comprises a positive electrode comprising a positive electrode active material, a negative electrode comprising a negative electrode active material, and the solid electrolyte. |
