| abstract |
An electrolyte for a sodium metal secondary battery, and a sodium metal secondary battery containing the electrolyte. Specifically, sodium salt; A main solvent comprising a cyclic carbonate-based solvent; And a reducing decomposing additive which improves the ion conductivity of the electrolyte itself and contains a reducing decomposition tendency higher than that of the main solvent and the auxiliary solvent by including an auxiliary solvent consisting of a linear carbonate solvent, an ether solvent, or a combination thereof; To thereby improve the interfacial stability with the sodium metal cathode, is provided as an embodiment of the present invention. Further, a sodium metal secondary battery to which the electrolyte is applied is provided as another embodiment of the present invention. |