| 摘要 |
Provided is a lithium secondary battery having high stability and high energy density. A lithium secondary battery includes a positive electrode and a negative electrode wherein the positive electrode includes one or more positive electrode active materials selected from LiFe x M y PO 4 , Li 2 Fe x MyP 2 O 7 , Li 3 Fe x M y (PO 4 ) 3 , and LiFe x M y O 2 , and coated on at least one surface of a positive current collector, where M is at least one selected from cobalt (Co), nickel (Ni), manganese (Mn), (Al), (Sn), and (Sb), 0 < x ‰¤1, and 0 ‰¤y < 1, the negative electrode includes one or more negative electrode active materials selected from Li 4 (Ti p N q ) 5 O 12 and Li 2 (Ti p N q ) 3 O 7 , and coated on at least one surface of a negative current collector, where N is at least one selected from Co, Ni, Mn, Al, Sn, and Sb, 0 < p ‰¤1, and 0 ‰¤q < 1, and the electrolyte includes a lithium (Li) ion-containing aqueous solution. |
