中文摘要：

设计合成了一种新型三甲基硅取代碳酸丙烯酯化合物（TMSPC）,并对其化学结构、热性能、离子电导率、电化学窗口和燃烧性能进行了详细的表征。通过与商业电解液（1mol.L-1 LiPF6/EC∶DEC=1∶1,体积比）互配组成电解液,30%（vol）TMSPC的添加能大大降低电解液的燃烧速率。同时,对LiFeO4/Li半电池进行测试,在0.2C倍率条件下,30%（vol）TMSPC的添加也能提高电池的循环性,未添加与添加TMSPC的LiFeO4/Li在110个循环后的容量分别为106 mA.h.g-1和109 mA.h.g-1,相应的容量保持率为81%和87%。

英文摘要：

A novel high safe trimethylsilyl substituted propylene carbonate（TMSPC）was designed and synthesized as electrolyte for lithium-ion batteries.Its physicochemical properties,such as thermal property,ionic conductivity,electrochemical window,and flammability were investigated in detail.With adding 30%（vol） TMSPC into the electrolyte of 1 mol·L-1 LiPF6/EC∶DEC（1∶1,vol.ratio）,the propagation rate could be reduced significantly.LiFeO4/Li half cell test showed that the cycling performance could be improved with 30%（vol） TMSPC additions in the electrolyte of 1 mol·L-1 LiPF6/EC∶DEC（1∶1,vol.ratio）,exhibiting a specific capacity of 109 mA·h·g-1 and a capacity retention of 87% as compared with 106 mA·h·g-1 and 81% for the base electrolyte at 0.2 C rate after 110 cycles.