Bi-metallic boride as the electrode material of aqueous battery enabling ultrahigh rate and cycling performances
| Autor: | Xu Cheng, Mu Pan, Xianxian Li, Yiteng Liu, Zhaowei Zeng, Wenmao Tu, Yadong Wang, Jian Zhang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Battery (electricity)
Electrode material Materials science Aqueous solution Nanocomposite Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Metal chemistry.chemical_compound chemistry Chemical engineering visual_art Boride visual_art.visual_art_medium High surface area Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Power Sources. 419:6-11 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2019.02.053 |
| Popis: | A facile chemical reduction method for preparation of Co Ni B was designed and developed. The obtained products showed outstanding electrochemical performances as positive electrode materials in aqueous electrolytes at different current densities (from 1 A g−1 to 20 A g−1). Co Ni B nanocomposite exhibited reversible specific capacity of 319.4 mAh g−1, remarkable rate capability over 90% at 20 A g−1, and excellent cyclability with no obvious decay over 100 cycles. The high surface area of Co Ni B facilitated the mass and charge transfer, which, in turn, boosted the electrochemical performances. |
| Databáze: | OpenAIRE |
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