Removal of Interstitial H 2 O in Hexacyanometallates for a Superior Cathode of a Sodium-Ion Battery
The University of Texas at Austin · Stony Brook University · +2 more institutions
Abstract
Sodium is globally available, which makes a sodium-ion rechargeable battery preferable to a lithium-ion battery for large-scale storage of electrical energy, provided a host cathode for Na can be found that provides the necessary capacity, voltage, and cycle life at the prescribed charge/discharge rate. Low-cost hexacyanometallates are promising cathodes because of their ease of synthesis and rigid open framework that enables fast Na(+) insertion and extraction. Here we report an intriguing effect of interstitial H2O on the structure and electrochemical properties of sodium manganese(II) hexacyanoferrates(II) with the nominal composition Na2MnFe(CN)6·zH2O (Na2-δMnHFC). The newly discovered dehydrated…
Citation impact
- FWCI
- 37.95
- Percentile
- 100%
- References
- 22
Authors
10Topics & keywords
- Electrochemistry
- Chemistry
- Cathode
- Anode
- Battery (electricity)
- Sodium
- Lithium (medication)
- Ion