| abstract |
A lithium secondary battery is provided, and a lithium secondary battery according to an embodiment of the present invention is provided with a positive electrode, a negative electrode, and a positive electrode comprising a positive electrode active material represented by the following formula (1), a negative electrode, and a positive electrode active material selected from the group consisting of a sulfite, tris (trialkylsilyl) phosphite, Salato) borate, or a combination thereof. ≪ RTI ID = 0.0 > A < / RTI > [Chemical Formula 1] xLi 2 MnO 3 - (1-x) LiMO 2 (Where x is 0 < x < 1 and M is a transition metal). |