Concentrated dual-salt electrolytes for improving the cycling stability of lithium metal anodes
Liu Pin1, Ma Qiang1, 2, Fang Zheng1, Ma Jie1, Hu Yong-Sheng1, †, , Zhou Zhi-Bin2, Li Hong1, Huang Xue-Jie1, Chen Li-Quan1
       

SEM and optical images of Li and Cu electrodes after 200 cycles in Li|Cu cells. The deposition current density was 0.5 mA/cm2. (a) 1M LiFSI +2M LiTFSI. (b) Cross section of 1M LiFSI +2M LiTFSI. (c) 2M LiFSI +1M LiTFSI. (d) Cross section of 2M LiFSI +1M LiTFSI. (e) 3M LiTFSI. (f) Cross section of 3M LiTFSI.