聚阴离子型二次离子电池正极材料研究进展

闫琦, 兰元其, 姚文娇, 唐永炳

Recent development of polyanionic cathodes for second ion batteries

Qi YAN, Yuanqi LAN, Wenjiao YAO, Yongbing TANG

图7 (a) Li2Fe(C2O4)2晶胞结构示意图[64]；(b) Li2Fe(C2O4)2中铁和草酸盐氧化还原机理示意图[64]；(c) KFeC2O4F的晶胞结构示意图[71]；(d) KFeC2O4F半电池充放电曲线[71]；(e) KFeC2O4F/软碳全电池不同循环圈数充放电曲线[71]

Fig. 7 (a) crystal structure of Li2Fe(C2O4)2[64]; (b) schematic illustration of iron and oxalate redox mechanism and their contribution to capacity in the stabilized charging and discharging process[64]; (c) crystal structure of KFeC2O4F[70]; (d) galvanostatic charge-discharge curves of KFeC2O4F in K half-cells[70]; (e) the corresponding charge-discharge curves of different cycles of full K ion cell[70]