School of Physics and Electronics;
Hunan University;
Changsha 410082;
China;
Institute for Superconducting and Electronic Materials(ISEM);
School of Mechanical;
Materials.Mechatronics and Biomedical Engineering;
Faculty of Engineering and Information Sciences;
University of Wollongong;
Wollongong;
NSW 2500;
Australia;
Key Laboratory of Materials Processing and Mold(Zhengzhou University);
Ministry of Education;
Zhengzhou University;
Zhengzhou 450002;
China;
Iron disulfide; Carbon matrix; Potassium-ion batteries; Nanorods; Volume variations;