Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 16, Pages 13534-13541Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b01516
Keywords
metal-air battery; in operando X-ray diffraction; sodium superoxide; NaO2; decomposition
Funding
- Swedish Research Council
- StandUp for Energy
- Swedish Energy Agency
- Angpanneforeningen's Foundation for Research and Development
- State Key Laboratory of Fine Chemicals [KF1413]
- China Scholarship Council
Ask authors/readers for more resources
Na-O-2 batteries are regarded as promising candidates for energy storage. They have higher energy efficiency, rate capability, and chemical reversibility than Li-O-2 batteries; in addition, sodium is cheaper and more abundant compared to lithium. However, inconsistent observations and instability of discharge products have inhibited the understanding of the working mechanism of this technology. In this work, we have investigated a number of factors that influence the stability of the discharge products. By means of in operando powder X-ray diffraction study, the influence of oxygen, sodium anode, salt, solvent, and carbon cathode were investigated. The Na metal anode and an ether-based solvent are the main factors that lead to the instability and decomposition of NaO2 in the cell environment. This fundamental insight brings new information on the working mechanism of Na-O-2 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