摘要 |
The present invention relates to a secondary battery which comprises: a positive electrode; a negative electrode; and an electrolyte. The positive electrode comprises: a positive electrode current collector; a carbon layer containing a binder and carbon; and an active material layer. In addition, the electrolyte contains LiPF_6 and LiFSI. The secondary battery of the present invention exhibits excellent high-temperature and low temperature properties, and the lifespan of the secondary battery is enhanced as corrosion of the positive electrode is prevented. |