Are fluorine and lithium a good partner for high-performance rechargeable battery electrolytes?

ACS Appl. Mater. Interfaces 9, 4282–4289 (2017). Aspern, N., Rçschenthaler, G., Winter, M. & Cekic-Laskovic, I. Fluorine and lithium: ideal partners for high-performance rechargeable battery electrolytes.

What is the power density of a pouch cell using VSE electrolyte?

The pouch cell using VSE electrolyte could provide an energy density of 531 Wh kg -1 (Fig. 5e) and good cycle performance (Fig. 5f). The VSE electrolyte with nonflammable and no flash point can operate at an extremely high temperature up to 90 °C. At such a high temperature, high power is easily achieved.

Does a CEI protect a high-voltage electrolyte from decomposition?

Although the CEI is expected to suppress the continuous decomposition of the electrolyte, most CEIs formed by conventional LiPF 6 -organocarbonate electrolytes fail to offer effective protection over the long-term cycling, contributing to the shortened cycle life of high-voltage LIBs [27, 28].

Which electrolyte enables Li symmetric cells to stably charge/discharge?

The 0.8 M LiFNFSI/FEBFP electrolyte with a wide electrochemical stability window up to 5.6 V and ionic conductivity of 3.9 mS cm −1 at room temperature enables Li | |Li symmetric cells to stably charge/discharge for more than 1500 h with the average CE of 99.3%.

What is SEI layer in STD electrolyte?

In contrast, the SEI layer formed in STD electrolyte is relatively inhomogeneous and mainly composed of organics (i.e., ROCO 2 Li and ROLi, R=alkyl) (top row in Supplementary Fig. 14b), resulting in Li dendrite growth 40.