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Gel Polymer Electrolyte for Zinc-Air Batteries Operating at Low Temperatures Poster presentation for FES Fall Symposium 2021T06-P03 University of Alberta Activity 2021-09-17 T06-P03 Efficient Low Temperature Performance of All Solid-State Zinc-air Batteries with MnCo2O4/Carbon Fiber Bifunctional Electrocatalyst and Poly(acrylic Acid) (PAA) Polymer Electrolyte Spinel 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 " Zahra Abedi
" , Jiayao Cui,
" Weixing Chen
" ,
Ivey, D. T06-P03 Zinc-Air Batteries with Efficient and Stable MnCo2O4/Carbon Fiber Bifunctional Electrocatalyst and Poly(acrylic Acid) (PAA) Based Gel Electrolyte Efficient 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 " Zahra Abedi
" , Jiayao Cui,
" Weixing Chen
" ,
Ivey, D. T06-P03 Low-Temperature Tolerant Poly(Acrylic Acid) (PAA) Gel Polymer Electrolytes for Rechargeable Zinc-Air Batteries Gel 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 T06-P03 Zinc-Air Battery Advances: Efficiency, Stability, and Low Temperature Operation Poster presentation on progress in Ivey Group on zinc-air batteries.T06-P03 University of Alberta Activity 2023-04-28 T06-P03 Modified Gel Polymer Electrolytes for Zinc-Air Batteries Operating at Various Temperatures Presentation dealing with gel polymers for application as the electrolyte in zinc-air batteries.T06-P03 University of Alberta Activity 2022-06-14 T06-P03 Gel Polymer Electrolytes for Zinc-air Batteries Operating at Low Temperatures Gel polymers for use as the electrolyte for zinc-air batteries in applications at low temperatures. T06-P03 University of Alberta Activity 2022-05-24 T06-P03 ECS Travel Grant for 241st ECS Meeting Competitive award to help fund travel to ECS conference. T06-P03 Award 2022-05-29 Jiayao Cui
T06-P03 Low-Temperature Tolerant Gel Polymer Electrolytes for Rechargeable Zn-Air Batteries MSc thesisT06-P03 Publication 2022-12-22 Jiayao Cui
T06-P03 O, N-Enriched, Self-Activated, Holey Carbon Sheets for High-Loading Zinc-Ion Supercapacitors T06-Q03 Publication 2023-12-27 Zhixiao Xu, " Zhe Sun" , " Janay Shan" , " Song Jin" , Jiayao Cui, Zhiping Deng, Min Ho Seo, Xiaolei Wang
T06-Q03 Functional Electrolyte Additives for Zinc-Ion Batteries T06-P03 University of Alberta Activity 2024-05-24 T06-P03 Zinc-philic Electrolyte Additives for Zinc-Ion Batteries T06-P03 University of Alberta Activity 2024-05-22 T06-P03 Sodium Succinate as a Functional Electrolyte Additive for Rechargeable Zinc-ion Batteries Zn-ion batteries (ZIBs) have gained great traction due to their low cost and improved safety when compared with Li-ion batteries (LIBs). However, dendrite formation and side reactions involving Zn corrosion and hydrogen evolution at the Zn electrode restrict the practical application of ZIBs. In this study, sodium succinate (SS), a common leveler and brightener in Zn electroplating, is explored as a functional electrolyte additive in ZIBs. Theoretical and experimental results indicate succinate ions can preferentially adsorb on the Zn electrode surface compared with water molecules. The adsorbed succinate ions can beneficially affect Zn2+ diffusion and cover the active sites for side reactions, resulting in more uniform Zn deposition and a protected Zn electrode. With the addition of 0.04 M SS to 2 M ZnSO4, the lifetime of the ZIB is significantly improved. A cycling stability of over 7100 h at 1 mA cm−2 is achieved, along with an ultrahigh average Coulombic efficiency of 99.6% in Zn||Cu cells, as well as a stable plating/stripping behavior of over 1800 h at 2 mA cm−2 in Zn||Zn cells. Even at a high current of 10 mA cm−2, both Zn||Zn and Zn||Cu cells employing the newly designed electrolyte demonstrate much improved performance. Full cells with Zn and I2@activated carbon electrodes in the designed electrolyte exhibit both higher capacity and capacity retention (87%) compared with batteries using pure 2 M ZnSO4 electrolyte. The exploration of SS as a functional electrolyte additive for ZIBs connects the use of levelers and brighteners in Zn electroplating with the study of ZIBs.T06-P03 University of Alberta Publication 2024-12-01 T06-P03 Revealing Zn Stripping and Plating Behavior in ZnSO4, Zn(ClO4)2, and ZnCl2 as a Function of Current Density and Capacity in Aqueous Zinc Ion Batteries Zn-ion batteries (ZIBs) are promising candidates for stationary energy storage due to
their enhanced safety and cost-effectiveness. However, challenges such as dendrite
and by-product formation severely restrict their practical application. Numerous
strategies have been proposed to address these issues, yet only a few fundamental
studies have systematically investigated Zn plating and stripping behavior on Zn
electrodes or the role of anions in these processes. In this study, correlations between
electrolyte characteristics and Zn stripping/plating behavior are established. The
reversibility of Zn followed the order ZnSO4 > ZnCl2 > Zn(ClO4)2. Several trends were
observed. Zn preferentially deposited on protruding areas in all electrolytes. At a
constant current density, increasing the areal capacity led to the formation of larger Zn
particles. At a fixed areal capacity, increasing the current density resulted in smaller Zn
deposits but a greater number of individual Zn islands. Zn in Zn(ClO4)2 exhibited
preferential stripping from the Zn substrate, whereas in ZnSO4 and ZnCl2, more Zn
was stripped from deposited Zn. These findings provide fundamental insights into Zn
plating and stripping behavior and may inspire new strategies to enhance the
performance and reversibility of ZIBs.T06-P03, T06-P03-LBP1 University of Alberta Publication 2025-05-08 T06-P03, T06-P03-LBP1 Zn Stripping and Plating Behavior in ZnSO4, Zn(ClO4)2, and ZnCl2 as a Function of Current Density and Capacity Zinc stripping and plating behaviors in different electrolytes and under various current densities.T06-P03-LBP1 University of Alberta Activity 2025-05-20 T06-P03-LBP1 ECS Travel Grant for 247th ECS Meeting Competitive award to help fund travel to ECS conference.T06-P03-LBP1 Award 2025-04-04 Jiayao Cui
T06-P03-LBP1 Interplay of surface effects and electrolyte properties governs zinc stripping behavior in aqueous electrolytes Aqueous zinc-ion batteries offer safe and low-cost energy storage, yet poor Zn electrode reversibility remains a critical challenge. Here, the interplay of crystal orientation, surface heterogeneity, and electrolyte chemistry in governing Zn stripping behavior is elucidated using ZnSO4 and Zn(ClO4)2 electrolytes. Although Zn deposits formed in both electrolytes preferentially orient along the low-energy (1120) plane and are intrinsically favorable for stripping than a (0001)-oriented Zn substrate, their post-stripping morphologies differ dramatically ZnSO4 exhibited preferential removal of Zn deposits and uniform dissolution, whereas Zn(ClO4)2 showed localized substrate dissolution and significant pit formation. Morphological, crystallographic, and electrochemical analyses and density functional theory suggest that strong SO42− adsorption likely suppresses local electric field intensification at energetically favorable sites, while weaker ClO4− adsorption, along with lower pH and higher ionic conductivity, are proposed to promote oxide thinning, hydrogen evolution, and pit growth. These findings establish a mechanistic basis for regulating Zn stripping through electrolyte–surface interactions in aqueous Zn batteries.T06-P03-LBP1 University of Alberta Publication 2026-04-27 T06-P03-LBP1
