Journal
JOURNAL OF POWER SOURCES
Volume 433, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2019.05.090
Keywords
Bi2O3; Oxygen vacancy; Anode; Alkaline battery
Funding
- National Natural Science Foundation of China [21822509, U1810110, 51502063, 31530009]
- Fundamental Research Foundation for Universities of Heilongjiang Province [LGYC2018JQ006]
- Science and Technology Planning Project of Guangdong Province [2018A050506028]
- Fundamental Research Fundation for Universities of Heilongjiang Province [LGYC2018J0006]
- Science Funds for Young Innovative Talents of HUST [201505]
Ask authors/readers for more resources
Aqueous alkaline batteries represent a promising kind of energy storage device, which hold great promise in power electronics with both high energy density and power density. However, their development is severely limited by their anodes which have unsatisfactory cycling stability. In this study, we report a new kind of oxygen vacancy activated Bi2O3 (Bi2O3-x) nanoflowers on carbon paper as robust anode in alkaline batteries via a hydrothennal growth and a following hydrogenation treatment. Owing to the enhanced charge transport rate after introducing oxygen vacancies, the resulting binder-free Bi2O3-x nanoflowers achieve a high capacitance of 0.97 mAh/cm(2) at 4 mA/cm(2) in a negative potential window from 0 to -1.2 V vs Hg/HgO, remarkably larger than the pristine Bi2O3 nanoflowers (0.6 mAh/cm(2)). Furthermore, this Bi2O3-x anode also owns excellent durability with a capacity retention of 73.8% after 5000 cycles. This work may contribute additional insight into the construction of high-performance anodes for alkaline batteries.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available