Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6601224 | Electrochemistry Communications | 2015 | 4 Pages |
Abstract
Two polyimides using redox-active anthraquinone group as the connection unit are synthesized and characterized as cathodes for sodium secondary batteries. Sodium cells based on these two polyimide cathodes provide reversible capacities as high as 165 and 192 mAh gâ 1, respectively, with excellent cyclabilities. A reversible four-electron transfer can occur for both of these two polyimides in the voltage range of 1.2-3.2 V with cyclic voltammetry measurements. These results suggest that anthraquinone is a promising connection unit for designing polyimide-based cathodes with high capacities for sodium secondary batteries.
Related Topics
Physical Sciences and Engineering
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Authors
Fei Xu, Jintao Xia, Wei Shi,