Supporting Information for "Effects of Lithium Salt Concentration in Ionic Liquid Electrolytes on Battery Performance of LiNi0.5Mn0.3Co0.2O2/Graphite Cells"

Nyquist plots before and after polarization, and chronoamperograms for Li/Li cells, the initial two charge-discharge curves of NMC532/graphite pouch cells, and the discharge curves of NMC532/graphite pouch cells measured at ー20°C.锂/锂电池（Li/Li cells）极化前后的奈奎斯特图（Nyquist plots）与计时安培曲线，NMC532/石墨软包电池（NMC532/graphite pouch cells）的前两次充放电曲线，以及在-20℃下测试得到的NMC532/石墨软包电池的放电曲线。