| Autor: |
Ramezankhani, Vahid, Yakuschenko, Igor K., Vasilyev, Sergey, Savinykh, Tatiana A., Mumyatov, Alexander V., Zhidkov, Ivan S., Shchurik, Elena V., Kurmaev, Ernst Z., Shestakov, Alexander F., Troshin, Pavel A. |
| Zdroj: |
Journal of Materials Chemistry A; 2/14/2022, Vol. 10 Issue 6, p3044-3050, 7p |
| Abstrakt: |
We synthesized and investigated a series of six promising polymeric electrode materials, which incorporate multiple redox-active groups enabling high specific discharge capacity and energy density in potassium half-cells. All investigated polymers showed a discharge capacity exceeding 200 mA h g−1 and no capacity fading after several hundred charge–discharge cycles. The best-performing material P1 delivered a discharge capacity of 422 mA h g−1 and record-high energy density of ∼696 W h kg−1 at 0.5 A g−1 in combination with a specific power of >20 000 W kg−1 reached at a specific current of 12 A g−1. The obtained results place P1 among the best electrode materials reported so far for potassium-ion batteries. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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