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5 (a) KFeSO4F的晶胞结构示意图[52]；(b) KFeSO4F半电池和KFeSO4F@G半电池在0.05 C电流密度下的充放电曲线[53]；(c) KFeSO4F半电池和KFeSO4F@G半电池循在0.5 C电流密度下的循环性能曲线[53]；(d) Na2Fe2(SO4)3半电池首次充放电不同荷电状态下的XRD图谱[53]

Fig. 5 (a) crystal structure of KFeSO4F[52]; (b) electrochemical performances of KFSF and KFSF@G: Initial charge-discharge curves at 0.5 C[53]; (c) cycling performance at 0.5 C[53]; (d) ex-situ XRD patterns[53]