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Fabrication of electrospun CO2 adsorption membrane for zinc-air battery application.
- Source :
-
Chemical Engineering Journal . Sep2020, Vol. 395, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- • The electrospun fiber membrane has the highest CO 2 adsorption capacity of 3.42 mmol CO2 /g adsorbent at 30 °C. • The CO 2 adsorption membrane effectively filtered carbon dioxide (400 ppm in air) for up to 16 h. • Zinc-air battery with the CO 2 adsorption membrane exhibited a higher discharge capacity. Zinc-air batteries (ZABs) are an important option for energy storage applications because of their high specific capacity. However, when ZABs are operated in ambient air, the CO 2 (400 ppm) in the air can react with the alkaline electrolyte, forming carbonates, which shorten the battery lifetime. In this work, we fabricated an electrospun polystyrene (PS)/polyethylenimine (PEI) fiber membrane to capture CO 2 from ambient air before the air is admitted into a ZAB to enhance battery performance. The result show that the PS/PEI fibers have a CO 2 adsorption capacity of 3.42 mmol CO2 /g adsorbent or 7.58 mmol CO2 /g PEI at room temperature. The fibers retain 91% of their initial CO 2 adsorption capacity after 15 cycles of the adsorption–desorption process. A ZAB cell equipped with PS/PEI fibers exhibited a better discharge capacity (802 mA h/g) compared to that of a ZAB without the fibers (762 mA h/g). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13858947
- Volume :
- 395
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 143416380
- Full Text :
- https://doi.org/10.1016/j.cej.2020.125031