High-rate and ultralong cycle-life potassium ion batteries enabled by in situ engineering of yolk–shell FeS₂@C structure on graphene matrix

• Main Authors: Zhao, Yi, Zhu, Jiajie, Ong, Samuel Jun Hoong, Yao, Qianqian, Shi, Xiuling, Hou, Kun, Xu, Zhichuan Jason, Guan, Lunhui
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Materials::Energy materials; Carbon Coating; FeS₂
• Online Access: https://hdl.handle.net/10356/153352
• Institution: Nanyang Technological University

The potassium-ion battery (PIB) represents a promising alternative to the lithium-ion battery for large-scale energy storage owing to the abundance and low cost of potassium. The lack of high performance anode materials is one of the bottlenecks for its success. The main challenge is the structural...