Profile
| Keywords: | Zinc ion batteries, electrolyte, zinc air batteries |
FES Funded ProjectsOutputs
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| Gel Polymer Electrolyte for Zinc-Air Batteries Operating at Low TemperaturesPoster presentation for FES Fall Symposium 2021T06-P03 University of Alberta | Activity | 2021-09-17 | | | Efficient Low Temperature Performance of All Solid-State Zinc-air Batteries with MnCo2O4/Carbon Fiber Bifunctional Electrocatalyst and Poly(acrylic Acid) (PAA) Polymer ElectrolyteSpinel type MnCo2O4 coated on asphaltene based carbon fibers (MnCo2O4/CF) was used as the electrode material/electrocatalyst for air electrodes for zinc‐air batteries (ZABs). The batteries were assembled using an alkaline poly(acrylic acid) hydrogel electrolyte. The low temperature battery performance of the prepared ZAB cells was studied in terms of charge/discharge voltage and efficiency at different current densities, cycle life, power density, and cell voltage at temperatures between −45 °C and 21 °C. At all temperatures, the ZABs successfully completed 200 cycles of charge/discharge (100 h) at 2 mA cm−2 which is double the current density reported in the recent literature. The maximum power densities at 0 and −45 °C were 75 and 12 mW cm−2, respectively. The good performance is attributed to the porous design of the air electrode and the use of an efficient electrocatalyst and an optimized gel polymer electrolyte.T06-P03 University of Alberta | Publication | 2023-02-02 | | | Zinc-Air Batteries with Efficient and Stable MnCo2O4/Carbon Fiber Bifunctional Electrocatalyst and Poly(acrylic Acid) (PAA) Based Gel ElectrolyteEfficient and high-performance zinc–air batteries (ZABs) with gel polymer electrolytes (GPEs) were prepared. Cubic spinel-type MnCo2O4-coated carbon fibers (MnCo2O4/CF) were used to prepare air electrodes, and poly(acrylic acid) was used to prepare alkaline GPEs. Materials characterization, including electron microscopy and X-ray photoelectron spectroscopy, confirmed the formation of MnCo2O4 on the CFs. The optimum composition of the GPE was determined by rheological measurements and battery testing; using GPE with a crosslinker concentration of 30 mM led to the best performing battery. Full-cell battery tests and cycling tests showed that this ZAB cell had outstanding performance with an initial efficiency of 62.6% at 10 mA cm–2, which degraded by only 6.5% after 200 cycles (100 h). The power output of this cell was 240 mW cm–2, which is superior to the power outputs reported in the recent literature for ZABs.T06-P03 University of Alberta | Publication | 2022-11-04 | | | Low-Temperature Tolerant Poly(Acrylic Acid) (PAA) Gel Polymer Electrolytes for Rechargeable Zinc-Air BatteriesGel polymer electrolytes (GPEs) are emerging materials for Zn-air batteries (ZABs), since the GPE can act as a combined electrolyte and separator in the battery. GPE-KOH was fabricated through the polymerization of poly(acrylic) acid in the presence of KOH and ZnO. GPE-KOH-KI was fabricated following a similar procedure, followed by immersion in a solution containing KOH, KI and ZnO. The addition of KI to the electrolyte changed the conventional charging reaction to a reaction with a lower thermodynamic barrier, which improved the battery efficiency with a maximum increase of 36% relative to ZABs without KI. This work focused on extending the working temperature range of the ZAB to low temperatures (as low as -41℃) as well as exploring the reaction mechanism for ZABs using KI as an additive. It is proposed that the discharging reaction at the air electrode is a combination of the oxygen reduction reaction and iodate reduction reaction.T06-P03 University of Alberta | Publication | 2023-05-11 | | | Zinc-Air Battery Advances: Efficiency, Stability, and Low Temperature OperationPoster presentation on progress in Ivey Group on zinc-air batteries.T06-P03 University of Alberta | Activity | 2023-04-28 | | | Modified Gel Polymer Electrolytes for Zinc-Air Batteries Operating at Various TemperaturesPresentation dealing with gel polymers for application as the electrolyte in zinc-air batteries.T06-P03 University of Alberta | Activity | 2022-06-14 | | | Gel Polymer Electrolytes for Zinc-air Batteries Operating at Low TemperaturesGel polymers for use as the electrolyte for zinc-air batteries in applications at low temperatures. T06-P03 University of Alberta | Activity | 2022-05-24 | | | ECS Travel Grant for 241st ECS MeetingCompetitive award to help fund travel to ECS conference. T06-P03 University of Alberta | Award | 2022-05-29 | | | Low-Temperature Tolerant Gel Polymer Electrolytes for Rechargeable Zn-Air BatteriesMSc thesisT06-P03 University of Alberta | Publication | 2022-12-22 | | | O, N-Enriched, Self-Activated, Holey Carbon Sheets for High-Loading Zinc-Ion SupercapacitorsT06-Q03 University of Alberta | Publication | 2023-12-27 | Zhixiao Xu, "Zhe Sun ", "Janay Shan ", "Song Jin ", Cui, J., Zhiping Deng, Min Ho Seo, Wang, X. | | Functional Electrolyte Additives for Zinc-Ion BatteriesT06-P03 University of Alberta | Activity | 2024-05-24 | | | Zinc-philic Electrolyte Additives for Zinc-Ion BatteriesT06-P03 University of Alberta | Activity | 2024-05-22 | |
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