Recently, ionic liquid based solid electrolytes is of great interest for the development of safe rechargeable lithium batteries. In this study, a solvent free approach to incorporate a novel type of binary mixture solid electrolyte composed of room temperature solid, crystalline, ionic liquid 1-butyl-1,4-diazabicyclo [2.2.2] octan-1-ium bis(trifluoromethanesulfonyl) imide (C₄DTFSI) and lithium bis(trifluoromethanesulfonyl) imide (LiTFSI) within an inert, porous host membrane is designed. The thermal, spectroscopic and electrochemical properties of the electrolyte at varied LiTFSI concentrations are studied. The Li⁺ transference number of the free-standing solid electrolyte is 0.49 at 25 ℃ having electrochemical stability of more than 5 V vs. Li/Li⁺. Moreover, the solid electrolyte assembled with LiFePO₄ (LFP) cathode and Li anode in half cell configuration showed good cyclability (133 mAh g⁻¹ after 100 cycles at 0.2 C) with Coulombic efficiency above 99 %.

最近，基于离子液体的固体电解质对于开发安全的可充电锂电池引起了极大的兴趣。在这项研究中，一种无溶剂的方法结合了一种新型的二元混合物固体电解质，该电解质由室温固体、结晶、离子液体 1-丁基-1,4-二氮杂双环 [2.2.2] 辛烷-1-鎓双（三氟甲磺酰基）组成。 ) 酰亚胺 (C ₄ DTFSI) 和双（三氟甲磺酰基）酰亚胺锂（LiTFSI）被设计在惰性多孔基质膜中。研究了不同 LiTFSI 浓度下电解质的热学、光谱学和电化学性质。自支撑固体电解质的 Li ⁺迁移数在 25 ℃ 时为 0.49，电化学稳定性超过 5 V vs. Li/Li ⁺. 此外，在半电池配置中由 LiFePO ₄ (LFP) 正极和 Li 负极组装的固体电解质显示出良好的循环性能（0.2 C 下 100 次循环后为133 mAh g ^-1），库仑效率高于 99%。