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非水系鈉離子電池的電解質(zhì)研究進展——Monionic鈉電解質(zhì)NaFSI雙三氟磺酰亞胺鈉，99.9%或40%EMC溶液

2024-07-11 23:26:27 Monionic?高品控鈉電池材料 21

(a) Na||HC半電池在3.3 mol/L NaFSI/TMP電解液和1.0 mol/L NaPF₆/EC:DEC(體積比1∶1)電解液中的循環(huán)性能和庫侖效率(插圖為在兩種電解液中HC表面SEI膜的結(jié)構(gòu)示意圖)^[54]；(b) Sb負極在0.8 mol/L NaPF₆/TMP +10%(體積分數(shù))FEC和1 mol/L NaPF₆/ EC:DEC(體積比1∶1)電解液中的初始充放電曲線^[57]；(c) HC負極在0.9 mol/L NaFSI/TFEP電解液中形成SEI層的機理；(d) HC||NVP全電池在0.9 mol/L NaFSI/TFEP電解液中的電化學性能^[58]

Fig.5 (a) cycling performance and coulombic efficiency of the Na||HC half-cells using 3.3? mol/L NaFSI/TMP electrolyte and 1.0? mol/L NaPF₆/EC:DEC (1∶1, by vol.) electrolyte (insets: Schemes of SEI passivation layers produced on a hard carbon surface in the above two electrolytes)^[54]; (b) initial charge/discharge curves of Sb-based anode in 0.8 mol/L NaPF₆/TMP+10% (volume fraction) FEC electrolyte and in 1 mol/L NaPF₆ EC/DEC (1∶1, by vol.) electrolyte^[57]; (c) mechanism of formation the SEI layer on the hard carbon anode in 0.9 mol/L NaFSI/TFEP electrolyte, (d) electrochemical performance of the HC||NVP full cell using a 0.9 mol/L NaFSI/TFEP electrolyte^[58]