| abstract |
Provided is a lithium secondary battery electrolyte, a lithium secondary battery including the same, and a method of manufacturing the same. Lithium secondary battery electrolyte according to the present invention comprises a trispentafluorophenyl borane (tris (pentafluorophenyl) borane) of the following formula (1), (One) The lithium secondary battery electrolyte according to the present invention prevents the micronization due to the volume change of the high capacity negative electrode active material generated during charge and discharge, thereby improving the electrode cycle characteristics. In particular, when using silicon, tin, antimony or aluminum as the negative electrode active material, the electrolyte according to the present invention can greatly improve the electrode cycle characteristics. |