Enhancing structural and cycle stability of Prussian blue cathode materials for calcium-ion batteries by introducing divalent Fe

Chong-Yu Du,Zi-Hao Zhang,Xun-Lu Li,Rui-Jie Luo,Cui Ma,Jian Bao,Jie Zeng,Xuan Xu,Fei Wang,Yong-Ning Zhou

Chemical Engineering Journal（2023）

引用 5|浏览14

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摘要

•A new Prussian blue cathode rich of Fe2+ is synthesized by using K4Fe(CN)6.•CuHCF(Fe2+) delivers a capacity of 54.5 mAh g−1 with high cycle stability.•The lattice change of CuHCF is only 0.13% during charge and discharge.•Octahedral distortion in CuHCF is suppressed effectively due to low spin Fe2+.

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关键词

prussian blue cathode materials,batteries,calcium-ion

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