/ hybrid oxygen reduction catalyst and nickel-ironoxygen evolution cathode catalysts exhibited higher catalytic activity and durability in concentrated alkaline electrolytes than precious metaland catalysts. The resulting primary zinc–air battery showed peak power density of ~265 mW/cm , current d
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Discharge curves for the four different runs and the repeated experiment for each run: (a) electrolyte flow rate 60 ml/min and discharge current 175 mA (b) electrolyte flow rate 80 ml/min and
OverviewMaterialsHistoryReaction formulasStorage densityStorage and operating lifeDischarge propertiesCell types
Cobalt oxide/carbon nanotube hybrid oxygen reduction catalyst and nickel-iron layered double hydroxide oxygen evolution cathode catalysts exhibited higher catalytic activity and durability in concentrated alkaline electrolytes than precious metal platinum and iridium catalysts. The resulting primary zinc–air battery showed peak power density of ~265 mW/cm, current density of ~200 mA/cm at 1 V and energy density >700 Wh/kg.
In order to alleviate the hydrogen evolution corrosion, passivation, and zinc dendrite growth during the charging and discharging of the zinc–bismuth negative electrode of zinc–air battery...
3 天之前· Rechargeable zinc-air batteries (RZABs), with their superior theoretical energy density (about 1370 Wh kg-1 without oxygen), Figure 5 d and Table S1 show the discharge current density gradient under light and dark conditions. Regardless of the lighting conditions, the battery exhibited reliable reversibility, with the charge-discharge gap under illumination being
This study investigates the role of electrolyte flow in enhancing zinc electrodeposition and overall performance in zinc-air flow batteries (ZAFBs) at high current densities. We explore the interplay between current density, flow rate, and their influence on electrode surface morphology and the removal of the passivating zinc oxide layer to
Discharge data involved forty experiments with discharge current in the range of 100–200 mA, and electrolyte flow rates in the range of 0–140 ml/min. Such data are crucial for the modelling...
DOI: 10.1038/s41597-020-0539-y Corpus ID: 219958973; Discharge profile of a zinc-air flow battery at various electrolyte flow rates and discharge currents @article{Abbasi2020DischargePO, title={Discharge profile of a zinc-air flow battery at various electrolyte flow rates and discharge currents}, author={Ali Abbasi and Soraya Hosseini and
Discharge data involved forty experiments with discharge current in the range of 100-200 mA, and electrolyte flow rates in the range of 0-140 ml/min. Such data are crucial for
Zinc-air batteries are a promising technology for large-scale electricity storage. However, their practical deployment has been hindered by some issues related to corrosion and passivation of the
Fig. 7 (b and c) show the discharge curves of sandwich-type near-neutral flexible zinc-air batteries at different current densities. The battery voltage rapidly drops during discharge in both environments but gradually returns to near initial values as the current decreases. As shown in Fig. 7 (d), the cycle voltage differences of near-neutral flexible zinc-air
In this paper, a method to increase the output power of a button zinc–air battery by applying acoustofluidics induced by ultrasonic excitation to the battery is proposed and demonstrated. In the structural design of the device, a flat piezoelectric ring was bonded onto the top of the outer surface of the cathode shell to excite an ultrasonic field in the battery. The
The discharge process of a rechargeable zinc-air battery based upon these electrocatalysts were first analyzed using CV in N 2 – and O 2 - flux in 0.1 molL-1 KOH solution. All of the prepared catalysts exhibited flat CV curves in N 2 - concentrated solution whereas a prominent irreversible cathodic peak was found in O 2 -concentrated solution ( Fig. 9 )
A zinc-air battery (ZAB) having the NiFeCo-NC2 catalyst performs better than the batteries using other catalysts. The NiFeCo-NC2 catalyst also exhibits excellent methanol tolerance, revealing...
This study investigates the role of electrolyte flow in enhancing zinc electrodeposition and overall performance in zinc-air flow batteries (ZAFBs) at high current densities. We explore the interplay between current density, flow rate, and their influence on electrode surface morphology and the removal of the passivating zinc oxide layer to improve
This study investigates the role of electrolyte flow in enhancing zinc electrodeposition and overall performance in zinc-air flow batteries (ZAFBs) at high current
In order to alleviate the hydrogen evolution corrosion, passivation, and zinc dendrite growth during the charging and discharging of the zinc–bismuth negative electrode of zinc–air battery...
Due to the limitation of cost and safety issues of traditional lithium-ion batteries, aqueous metal-air batteries have become the choice of the next-generation (Chen et al., 2022), among which Rechargeable zinc–air battery (ZAB) are most noteworthy (Wu et al., 2022) due to high energy density of 820 mA h/g which is about 5 times higher than the current lithium–ion
Discharge data involved forty experiments with discharge current in the range of 100-200 mA, and electrolyte flow rates in the range of 0-140 ml/min. Such data are crucial for the modelling and theoretical/experimental analysis of ZAFBs.
The purpose of this work is to provide the experimental data for ZAB including discharge profiles at different constant discharge currents, dynamic behavior at different step changes of...
Constant current discharge profile data focus on the evolution of voltage through time. The data of step changes emphasize the dynamic behavior of voltage responding to the
Constant current discharge profile data focus on the evolution of voltage through time. The data of step changes emphasize the dynamic behavior of voltage responding to the change of discharge current. Besides, the data of random step changes are similar to the data of step changes, but the patterns of step changes are random.
A zinc-air battery (ZAB) having the NiFeCo-NC2 catalyst performs better than the batteries using other catalysts. The NiFeCo-NC2 catalyst also exhibits excellent methanol tolerance, revealing...
Discharge data involved forty experiments with discharge current in the range of 100–200 mA, and electrolyte flow rates in the range of 0–140 ml/min. Such data are crucial for the modelling...
The purpose of this work is to provide the experimental data for ZAB including discharge profiles at different constant discharge currents, dynamic behavior at different step changes of...
(a) Charge–discharge curves of a zinc–air battery, with air electrodes N-MWCNTs-Co-800-120 min catalyst, 20 wt% Pt/C and 20 wt% IrO 2 /C, measured at 0.5 A g À1 current density (one cycle
3 天之前· Rechargeable zinc-air batteries (RZABs), with their superior theoretical energy density (about 1370 Wh kg-1 without oxygen), Figure 5 d and Table S1 show the discharge current
Discharge data involved forty experiments with discharge current in the range of 100–200 mA, and electrolyte flow rates in the range of 0–140 ml/min. Such data are crucial for the modelling...
system of a zinc-air ˙ow battery and zinc electrolyzer in order to investigate the e˛ect of operating parameters 1 Department of chemical engineering, faculty of engineering, chulalongkorn
A zinc–air battery is a metal–air electrochemical cell powered by the oxidation of zinc with oxygen from the air. During discharge, a mass of zinc particles forms a porous anode, which is saturated with an electrolyte. Oxygen from the air reacts at the cathode and forms hydroxyl ions which migrate into the zinc paste and form zincate (Zn(OH
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