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首页> 外文期刊>Journal of power sources >Ionic liquid based nanofluid electrolytes with higher lithium salt concentration for high-efficiency, safer, lithium metal batteries
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Ionic liquid based nanofluid electrolytes with higher lithium salt concentration for high-efficiency, safer, lithium metal batteries

机译：具有较高锂盐浓度的离子液体基纳米流体电解质，用于高效，安全的锂金属电池

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摘要

Incorporation of ionic liquid functionalized TiO2 nanoparticles in low conducting, 0.6 M lithium salt doped N- methyl-N-butylpyrrolidinium bis(trifluoromethylsulfonyl)limide (Pyr(14)TFSI) ionic liquid electrolyte is found to not only suppress crystallinity but also significantly improve both ionic conductivity and lithium transference number in the electrolyte. The Li/LiMn2O4 cell with the best conducting ionanofluid electrolyte delivers a discharge capacity of about 131 mAh g(-1 ) at 25 degrees C at a current density of 24 mAg(-1), much higher than that obtained in conventional 0.2 M Li salt dissociated Pyr(14)TFSI electrolyte (87 mAh g(-1)). Excellent rate performance with outstanding capacity retention of the cell as compared to the conventional one indicate superior electrode-electrolyte interfacial compatibility, which further establishes great application potentiality of this optimized newly developed electrolyte for safer lithium metal batteries.
机译：发现将离子液体官能化的TiO2纳米粒子掺入低导电的0.6M锂盐掺杂的N-甲基-N-丁基吡咯烷鎓双（三氟甲基磺酰基）酰亚胺（Pyr（14）TFSI）离子液体电解质中不仅可以抑制结晶度，而且还可以显着改善两者电解质中的离子电导率和锂转移数。具有最佳电导性离子流流体电解质的Li / LiMn2O4电池在25摄氏度下以24 mAg（-1）的电流密度提供约131 mAh g（-1）的放电容量，远高于传统的0.2 M Li盐解离了Pyr（14）TFSI电解质（87 mAh g（-1））。与传统电池相比，优异的倍率性能和出色的电池容量保持能力表明其优异的电极-电解质界面相容性，这进一步为优化的新开发的电解质建立了广阔的应用潜力，可用于更安全的锂金属电池。

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