Effect of Eliminating Water in Prussian Blue Cathode for Sodium‐Ion Batteries
Wenzhou University · China Nonferrous Metals Changsha Investigation Design Institute · +4 more institutions
Abstract
Abstract Prussian blue analogs (PBAs) are promising cathode materials for sodium‐ion batteries (SIBs) due to their low‐cost, similar energy density comparable with that of LiFePO 4 in lithium‐ion batteries, and long cycle life. Nevertheless, crystal water (≈10 wt%) in PBAs from aqueous synthesis environments can bring significant side effects in real SIBs, especially for calendar life and high temperature storage performance. Therefore, it is of great importance to eliminate crystal water in PBAs for future commercial applications. Herein, a facile heat‐treatment method is reported in order to remove water from Fe‐based PBAs. Although the heat‐treated sample can be easily rehydrated in air, it still exhibits a…
Citation impact
- FWCI
- 23.54
- Percentile
- 100%
- References
- 42
Authors
14Topics & keywords
- Prussian blue
- Materials science
- Cathode
- Electrochemistry
- Synchrotron
- Ion
- Dehydration
- Chemical engineering