非水系钠离子电池的电解质研究进展

马梦莹, 潘慧霖, 胡勇胜

Progress in electrolyte research for non-aqueous sodium ion batteries

Mengying MA, Huilin PAN, Yongsheng HU

图4 (a) NaxEMImTFSI1-x和NaxBMIm1-xTFSI电导率随钠盐物质的量浓度变化的等温线；(b) DFT计算得到的[Na(TFSI)3]2-络合物的能量优先结构[39]；(c) NaTFSIxPyr14TFSI1-x的离子电导率随NaTFSI物质的量浓度变化的等温线[42]；(d) Na||NVP@rGO电池结构和Na-Cl-IL电解液组成示意图；(e) Na||NVP@rGO在Na-Cl-IL电解液中的CV曲线(2 mV/s)[45]

Fig.4 (a) the isotherm of the conductivity of NaxEMImTFSI1-x and NaxBMIm1-xTFSI with the molality of sodium; (b) the energetically preferred structure for the [Na(TFSI)3]2- complex from the DFT calculations[39]; (c) isotherms of the ionic conductivity of NaTFSIxPyr14TFSI1-x vs. NaTFSI mole ratio[42]; (d) schematic illustration of the battery configuration and electrolyte composition of the Na-Cl-IL electrolyte; (e) CV curves of a Na||NVP@rGO cell using Na-Cl-IL electrolyte(2 mV/s)[45]