Zinc electrode with anion conducting polyvinyl alcohol/poly(diallyldimethylammonium chloride) film coated ZnO for secondary zinc air batteries

Gan, Wengang; Zhou, Liang; Zhang, Zejie; Zhao, Jiuzhou

doi:10.1016/j.electacta.2015.09.105

Cited by 47 publications

(32 citation statements)

References 32 publications

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“…The discharge capacity of the PVA/PDDA coated Zn electrode is 317 mAh g −1 after 60 cycles, which is higher than its initial value of 270 mAh g −1 . In contrast, the discharge capacity of a bare Zn electrode decreased 46% under the same testing condition . Coating materials increases the mass of Zn electrodes, leading to lower specific mass capacity.…”

Section: Zn Electrodesmentioning

confidence: 90%

Recent Advances in Materials and Design of Electrochemically Rechargeable Zinc–Air Batteries

Chen

Zhou

Karahan

et al. 2018

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The century-old zinc-air (Zn-air) battery concept has been revived in the last decade due to its high theoretical energy density, environmental-friendliness, affordability, and safety. Particularly, electrically rechargeable Zn-air battery technologies are of great importance for bulk applications like electric vehicles, grid management, and portable electronic devices. Nevertheless, Zn-air batteries are still not competitive enough to realize widespread practical adoption because of issues in efficiency, durability, and cycle life. Here, following an introduction to the fundamentals and performance testing techniques, the latest research progress related to electrically rechargeable Zn-air batteries is compiled, particularly new key findings in the last five years (2013-2018). The strategies concerning the development of Zn and air electrodes are in focus. The design of other battery components, namely electrolytes and separators are also discussed. Poor performance of O electrocatalysts and the lack of the long-term stability of Zn electrodes and electrolytes remain major challenges. Finally, recommendations regarding the testing routines and materials design are provided. It is hoped that this up-to-date account will help to shape the future research activities toward the development of practical electrically rechargeable Zn-air batteries with extended lifetime and superior performance.

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Section: Zn Electrodesmentioning

confidence: 90%

Recent Advances in Materials and Design of Electrochemically Rechargeable Zinc–Air Batteries

Chen

Zhou

Karahan

et al. 2018

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198

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“…22 To tackle with the corrosion and dendrite problems, composition or surface modications of Zn anodes are necessary. Studies show that Zn electrodes alloyed with certain metals (e.g., Pb, Cd, Bi, Sn and In) 13,56,57 or modied with additives (e.g., silicates, surfactants and polymers) [58][59][60][61] can suppress H 2 evolution to different extents. The incorporation of alloying metals or additives may increase the conductivity, improve the current distribution and promote the formation of compact, thin Zn deposits.…”

Section: Zn Electrodementioning

confidence: 99%

Zinc–air batteries: are they ready for prime time?

et al. 2019

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“…In order to compare the two electrodes, the data of ac impedance is fitted by Zsimpwin. The fitting circuit diagram is shown in Figure (b),, and the fitting results are shown in Figure (c‐d). It can be seen that the fitting results agree with the experimental results, indicating that the fitted circuit diagram can effectively explain the experimental results.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Properties of a ZnO/PVA/β‐CD Composite Electrode for Rechargeable Zinc Anodes

Zhang

Zhou

et al. 2018

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ZnO/PVA/β‐CD composite electrode was prepared by chemical crosslinking method. The FT‐IR spectrum of the composite electrode shows that the absorption peaks in 3379 cm−1 owing to the O−H stretching vibration decreased significantly, indicating the decreased of the hydroxyl number. The blue shift of the absorption peak at 3900 cm−1 owing to the O−H stretching vibration proves that the complex substance formed after cross‐linked reaction is more stable. Compared with the bare electrode, the cycle numbers of the composite electrode increased from 40 to 80 before the discharge capacity of the battery reduced to 80% of the maximum capacity at the charge/discharge current density of 25 mA⋅cm−2, which revealed that the cycle life of the composite electrode was longer than the bare electrode. SEM spectrum of the composite after 80 cycles that the active substances were embedded in the composite electrode regularly with good morphology and no obvious dendrite while there was a large number of dendrite inside the bare electrode, which indicated that there was an effect of combination between the complex substance and the active Zn. The results of the polarization curves and the AC impedance measurements show that the composite electrode has high electrochemical activity and low internal resistance.

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Zinc electrode with anion conducting polyvinyl alcohol/poly(diallyldimethylammonium chloride) film coated ZnO for secondary zinc air batteries

Cited by 47 publications

References 32 publications

Recent Advances in Materials and Design of Electrochemically Rechargeable Zinc–Air Batteries

Recent Advances in Materials and Design of Electrochemically Rechargeable Zinc–Air Batteries

Zinc–air batteries: are they ready for prime time?

Preparation and Properties of a ZnO/PVA/β‐CD Composite Electrode for Rechargeable Zinc Anodes

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