Youchen Hao, Xifei Li, Wen Liu, Hirbod Maleki Kheimeh Sari, Jian Qin and Yingying Li
Chem. Commun., 2019,55, 9076-9079
DOI:
10.1039/C9CC03406D,
Communication
The large volume expansion of FeS2 is successfully accommodated via a series of asynchronous redox reactions of dual-crystalline FeS2. Consequently, a durable sodium storage performance with a reversible capacity of 567.7 mA h g−1 is obtained at 0.1 A g−1 after 50 cycles. This novel strategy can also be utilized in other types of electrodes having large volume change upon cycling.