@article{Zhu2018, 
author = {Xiaobo Zhu and Takashi Mochiku and Hiroki Fujii and Kaibin Tang and Yuxiang Hu and Zhenguo Huang and Bin Luo and Kiyoshi Ozawa and Lianzhou Wang},
title = {A new sodium iron phosphate as a stable high-rate cathode material for sodium ion batteries},
year = {2018},
journal = {Nano Research},
volume = {11},
number = {12},
pages = {6197-6205},
keywords = {sodium iron phosphate, low volume change, cathode material, long cycle, rate performance, sodium ion batteries},
url = {https://www.sciopen.com/article/10.1007/s12274-018-2139-0},
doi = {10.1007/s12274-018-2139-0},
abstract = {Low-cost room-temperature sodium-ion batteries (SIBs) are expected to promote the development of stationary energy storage applications. However, due to the large size of Na+, most Na+ host structures resembling their Li+ counterparts show sluggish ion mobility and destructive volume changes during Na ion (de)intercalation, resulting in unsatisfactory rate and cycling performances. Herein, we report a new type of sodium iron phosphate (Na0.71Fe1.07PO4), which exhibits an extremely small volume change (~ 1%) during desodiation. When applied as a cathode material for SIBs, this new phosphate delivers a capacity of 78 mA·h·g-1 even at a high rate of 50 C and maintains its capacity over 5, 000 cycles at 20 C. In situ synchrotron characterization disclosed a highly reversible solid-solution mechanism during charging/discharging. The findings are believed to contribute to the development of high-performance batteries based on Earth-abundant elements.}
}