Well-defined Na2Zn3[Fe(CN)6]2 nanocrystals as a low-cost and cycle-stable cathode material for Na-ion batteries

oleh: Li Xu, Hui Li, Xianyong Wu, Miaomiao Shao, Shuangyu Liu, Bo Wang, Guangyao Zhao, Peng Sheng, Xin Chen, Yu Han, Yuliang Cao, Xinping Ai, Jiangfeng Qian, Hanxi Yang

Format: Article
Diterbitkan: Elsevier 2019-01-01

Deskripsi

Well-defined Na2Zn3[Fe(CN)6]2 nanocrystals (~300 nm) have been fabricated by a facile controlled crystallization method from low-cost precursors at room temperature. By employing [Fe(CN)6]3−/[Fe(CN)6]4− couples as redox centres, this material can realize a theoretical 1Na-storage capacity of 70 mAh g−1, a superior high-rate capability of 20 C and an impressive cycle life of 1000 cycles, offering a low-cost and high-performance alternative cathode for large-scale Na-ion applications. Keywords: Na-ion batteries, Prussian blue analogues, Intercalation cathode, Energy storage