Multi-metal substituted Fe-based Prussian blue as high-capacity cathode material for potassium ion batteries

被引：1

作者：

Yang, Shujie ^{[1
]}

Feng, Xi ^{[1
]}

Min, Xin ^{[1
]}

Ma, Bin ^{[2
]}

Liu, Yangai ^{[1
]}

Mi, Ruiyu ^{[1
]}

Wu, Xiaowen ^{[1
]}

Wang, Wei ^{[3
]}

Huang, Zhaohui ^{[1
]}

Fang, Minghao ^{[1
]}

机构：

[1] China Univ Geosci Beijing, Minist Educ Geol Carbon Storage & Low Carbon Utili, Sch Mat Sci & Technol, China Engn Res Ctr,Beijing Key Lab Mat Utilizat No, Beijing 100083, Peoples R China

[2] Qinghai Univ, Qinghai Prov Engn Res Ctr High Performance Light M, Qinghai Prov Key Lab New Light Alloys, Xining 810016, Peoples R China

[3] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, State Key Lab Adv Met, Beijing 100083, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2024年 / 852卷

关键词：

Prussian blue; Potassium ion batteries; Cathode materials; Multi-metal; Electrochemical performance; PROMISING CATHODE; NANOCOMPOSITE; GRAPHENE; ANALOGS;

D O I：

10.1016/j.cplett.2024.141522

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fe-based Prussian blue (FePB) has been widely studied as cathode materials of potassium ion batteries due to its three-dimensional open framework structure and large ion migration channels. In this study, the effect of the introduction of various metals (Co2+, Cu2+, Ni2+, Mn2+) on the rate and cycle properties of FePB was investigated. MnCoNiFePB cathode material shows better electrochemical performance, with the initial discharge capacity of 91.3 and 75.4 mAh g-1 (capacity retention is 56.7 % after 100 cycles) at 0.2C and 1C, respectively. These results inspire new ideas for the development and application of potassium ion battery electrode materials.

引用

页数：7

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