超高速充放電が可能なナトリウム二次電池用正極材料の開発

钠离子电池的成功开发在很大程度上取决于具有经济可行性和稳定的电子性能的合适的电极活性材料和电解质的开发。为此，利用由[C3 C1 pyrr][FSA]（C3 C1 pyrr + = N-甲基-N-丙基吡咯烷鎓）离子液体（IL）和碳酸盐有机液体（OL）电解质与几种盐Na[FSA]（FSA =双（氟磺酰基）酰胺）、NaPF 6和Na[ClO 4]制成的一组几种电解质来探索降低成本、高性能和抑制可燃性的可能性。电解质的阳极稳定性与IL的提高和热稳定性测试表明，IL的添加可以有效地抑制可燃性。本文中，研究了用于钠离子电池的上述混合电解质和离子液体电解质的各种混合比例的物理化学和电化学性质。此外，在宽的温度范围内进行了使用硬碳负极、Na 3V 2（PO 4）2F 3和NaCrO 2正极的电池测试

The successful development of sodium-ion batteries is heavily contingent on the development of suitable electrode active material and electrolytes with economic feasibility and stable electronic performance. To this end, a group of several electrolytes made from the [C3C1pyrr][FSA] (C3C1pyrr+ = N-methyl-N-propylpyrrolidinium) ionic liquid (IL) and carbonate organic liquid (OL) electrolytes with several salts, Na[FSA] (FSA = bis(fluorosulfonyl)amide), NaPF6 and Na[ClO4] were utilized to explored the possibilities of cost reduction, high performance and inhibited flammability. The anodic stability of the electrolytes were enhanced with the IL and the thermal stability tests reveal that the addition of IL can effectively suppress flammability. Herein, the physicochemical and electrochemical properties of the various mixing ratios of the aforementioned hybrid electrolytes and ionic liquid electrolytes investigated for sodium-ion batteries. Furthermore, cell tests using hard carbon negative, Na3V2(PO4)2F3 and NaCrO2 positive electrodes were carried out across wide temperature range