A Yolk–Shell‐Structured FePO4 Cathode for High‐Rate and Long‐Cycling Sodium‐Ion Batteries

• Published in: Angewandte Chemie International Edition Vol. 59; no. 40; pp. 17504 - 17510
• Main Authors: Zhang, Zhuangzhuang, Du, Yichen, Wang, Qin‐Chao, Xu, Jingyi, Zhou, Yong‐Ning, Bao, Jianchun, Shen, Jian, Zhou, Xiaosi
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 28.09.2020
• Edition: International ed. in English
• Subjects: Cathodes; Electrochemistry; Electrode materials; FePO4; Iron phosphates; Nanospheres; Rechargeable batteries; Sodium; Sodium-ion batteries; Specific capacity; Yolk; yolk–shell structure

Amorphous iron phosphate (FePO4) has attracted enormous attention as a promising cathode material for sodium‐ion batteries (SIBs) because of its high theoretical specific capacity and superior electrochemical reversibility. Nevertheless, the low rate performance and rapid capacity decline seriously...