Concentrated poly(ethylene carbonate) (PEC) and poly(trimethylene carbonate) (PTMC) blend electrolytes with 150 mol% of LiFSI were prepared and the PEC6PTMC4 electrolyte was applied in all-solid-state Li batteries. The blend electrolyte has an ionic conductivity of 10−5 S cm−1 and a Li+ transference number (t+) of 0.73. Meanwhile, the PEC6PTMC4 electrolyte exhibits a good electrochemical stability with Li electrode than those of PEC and PTMC single-polymer electrolytes. An LFP half-cell exhibits a discharge capacity of 150 mAh g−1 at 50 °C and a C/10 rate.
- Zhenguang Li
- Jonas Mindemark
- Yoichi Tominaga
