التفاصيل البيبلوغرافية
| العنوان: |
Rechargeable Alkaline Zinc/Copper Oxide Batteries |
| المؤلفون: |
Noah B. Schorr (3182736), David J. Arnot (9578960), Andrea M. Bruck (3742489), Jonathon Duay (1712068), Maria Kelly (654910), Rachel L. Habing (11002277), Logan S. Ricketts (11002280), Julian A. Vigil (1504468), Joshua W. Gallaway (2432407), Timothy N. Lambert (1270890) |
| سنة النشر: |
1753 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biochemistry, Physiology, Evolutionary Biology, Ecology, Sociology, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, copper oxide-based conversion cathode, conversion cathode chemistries, battery chemistry, capacity, cycling CuO cells, Bi 2 O 3 additive, DOD, ring-disc electrode voltammetry, mA, Bi 2 O 3, operando energy-dispersive X-ray di., Cu 2 O, transmission electrochemical microscopy |
| الوصف: |
Resurrecting a battery chemistry thought to be only primary, we demonstrate the first example of a rechargeable alkaline zinc/copper oxide battery. With the incorporation of a Bi 2 O 3 additive to stabilize the copper oxide-based conversion cathode, Zn/(CuO–Bi 2 O 3 ) cells are capable of cycling over 100 times at >124 W h/L, with capacities from 674 mA h/g (cycle 1) to 362 mA h/g (cycle 150). The crucial role of Bi 2 O 3 in facilitating the electrochemical reversibility of Cu 2 O, Cu(OH) 2 , and Cu o was supported by scanning and transmission electrochemical microscopy, cyclic voltammetry, and rotating ring-disc electrode voltammetry and monitored via operando energy-dispersive X-ray diffraction measurements. Bismuth was identified as serving two roles, decreasing the cell resistance and promoting Cu(I) and Cu(II) reduction. To mitigate the capacity losses of long-term cycling CuO cells, we demonstrate two limited depth of discharge (DOD) strategies. First, a 30% DOD (202 mA h/g) retains 99.9% capacity over 250 cycles. Second, the modification of the CuO cathode by the inclusion of additional Cu metal enables performance at very high areal capacities of ∼40 mA h/cm 2 and unprecedented energy densities of ∼260 W h/L, with near 100% Coulombic efficiency. This work revitalizes a historically primary battery chemistry and opens opportunity to future works in developing copper-based conversion cathode chemistries for the realization of low-cost, safe, and energy-dense secondary batteries. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Rechargeable_Alkaline_Zinc_Copper_Oxide_Batteries/14818202 |
| DOI: |
10.1021/acsaem.1c01133.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsaem.1c01133.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.A1529025 |
| قاعدة البيانات: |
BASE |