| abstract |
More particularly, the present invention relates to a lithium secondary battery comprising a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte, wherein the separator includes a gel polymer electrolyte between the negative electrode and the separator, To a lithium secondary battery including a liquid electrolyte. The lithium secondary battery according to the present invention can improve the stability and performance of the electrode using different electrolytes for the positive electrode and the negative electrode, thereby improving the performance and lifetime of the lithium secondary battery. |