β-FeOOH: a new anode for potassium-ion batteries,Chemical Communications

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β-FeOOH: a new anode for potassium-ion batteries
Chemical Communications ( IF 4.3 ) Pub Date : 2020/03/10 , DOI: 10.1039/d0cc01009j
Xiaodong Shi _{1,

2,

3,

4} , Liping Qin _{4,

5,

6} , Guofu Xu _{1,

2,

3,

4,

7} , Shan Guo _{1,

2,

3,

4} , Shuci Ma _{1,

2,

3,

4} , Yunxiang Zhao _{1,

2,

3,

4} , Jiang Zhou _{1,

2,

3,

4,

7} , Shuquan Liang _{1,

2,

3,

4,

7}

Affiliation

Potassium-ion batteries (PIBs) hold great potential in large-scale energy storage systems. Here, β-FeOOH is employed as an anode for PIBs, exhibiting high capacity and good cycling stability. The study of potassium storage mechanism discloses that β-FeOOH turns into an amorphous structure in the first discharge process, and remains stable in the amorphous state in the subsequent cycles.

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