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.
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页数：7
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