Toward stable zinc aqueous rechargeable batteries by anode morphology modulation via polyaspartic acid additive

Zhou, Tianyi; Mu, Yanlu; Chen, Lan; Li, Dexing; Li, Wen; Yang, Chengkai; Zhang, Shuangbin; Wang, Qian; Jiang, Peng; Ge, Guanglu; Zhou, Henghui

doi:10.1016/j.ensm.2021.12.028

Cited by 55 publications

(52 citation statements)

References 53 publications

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“…In general, the transport of Zn 2+ ions in the ZnSO 4 + 0.5SF electrolyte during the Zn plating process would bring the [Zn(H 2 O) 4 (SF)] 2+ complex to the electrolyte/electrode interface. Considering that the SF biological macromolecule can coordinate with some metal ions or be adsorbed on metal surfaces, , the SF molecules released from [Zn(H 2 O) 4 (SF)] 2+ solvation sheaths are more likely to be absorbed on the surface of the Zn anode. Therefore, X-ray photoelectron spectroscopy (XPS) analyses were conducted to identify whether the SF molecules are chemically or physically adsorbed on the Zn anode.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, electric double layer (EDL) capacitance measurements of Zn substrates were carried out in ZnSO 4 + 0.5SF and pure ZnSO 4 electrolytes (Figure c and Figures S8 and S9). The decrease of EDL capacitance of the Zn anode in the ZnSO 4 + 0.5SF electrolyte can be ascribed to the adsorption of SF molecules, which increases the thickness of the EDL due to its high steric resistance on the Zn anode …”

Section: Resultsmentioning

confidence: 99%

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In Situ Construction of Protective Films on Zn Metal Anodes via Natural Protein Additives Enabling High-Performance Zinc Ion Batteries

et al. 2022

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The strong activity of water molecules causes a series of parasitic side reactions on Zn anodes in the aqueous electrolytes. Herein, we introduce silk fibroin (SF) as a multifunctional electrolyte additive for aqueous zinc-ion (Zn-ion) batteries. The secondary structure transformation of SF molecules from α-helices to random coils in the aqueous electrolytes allows them to break the hydrogen bond network among free water molecules and participate in Zn2+ ion solvation structure. The SF molecules released from the [Zn(H2O)4(SF)]2+ solvation sheath appear to be gradually adsorbed on the surface of Zn anodes and in situ form a hydrostable and self-healable protective film. This SF-based protective film not only shows strong Zn2+ ion affinity to promote homogeneous Zn deposition but also has good insulating behavior to suppress parasitic reactions. Benefiting from these multifunctional advantages, the cycle life of the Zn||Zn symmetric cells reaches over 1600 h in SF-containing ZnSO4 electrolytes. In addition, by adopting a potassium vanadate cathode, the full cell shows excellent cycling stability for 1000 cycles at 3 A g–1. The in situ construction of a protective film on the Zn anode from natural protein molecules provides an effective strategy to achieve high-performance Zn metal anodes for Zn-ion batteries.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

In Situ Construction of Protective Films on Zn Metal Anodes via Natural Protein Additives Enabling High-Performance Zinc Ion Batteries

et al. 2022

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“…[28] Sun et al significantly improved the number of cycles and capacity retention of the battery by adding cheap and common glucose to the ZnSO 4 electrolyte. [29] However, the optimal usage of electrolyte additives is so high that electrolyte viscosity is increased, and the ionic conductivity and reaction kinetics of the solution is reduced (for example, the additive mentioned above was 1-10 % organic matter [28][29][30][31][32] ). Therefore, it is an urgent need to find an optimal additive with a lower proportion to improve the battery performance on the premise of not reducing the ionic conductivity of the aqueous electrolyte and fast reaction kinetics.…”

Section: Introductionmentioning

confidence: 99%

Controlling Horizontal Growth of Zinc Platelet by OP‐10 Additive for Dendrite‐Free Aqueous Zinc‐Ion Batteries

Han

Sun

et al. 2022

Batteries & Supercaps

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Rechargeable zinc-ion batteries based on aqueous electrolytes are advantageous in terms of being environmentally friendly, safe and low cost. However, the problems of zinc dendrites and irreversible by-products on the Zn metal surface during the charging and discharging processes limit its practical application. Herein, octenyl phenol polyoxyethylene ether-10 (OP-10) with an oxygen-rich chain is used as an electrolyte additive to significantly improve the stability of the Zn anode. With an ultralow addition content of about 0.1 wt %, the OP-10 can not only promote the uniform deposition of Zn 2 + by adjusting the growth orientation of the (002) crystal plane of Zn but also alleviate side-reaction on the metal surface. Thus, the Zn//Zn cell is stable for more than 800 hours at 1 mA cm À 2 , and the Zn//Cu cell has a Coulombic efficiency of up to 99.80 %. Further, the Zn//V 2 O 5 • 1.6H 2 O battery exhibits outstanding cycle stability over 1000 cycles (maintain 92.12 % at 10 C), which is much superior to pure ZnSO 4 electrolyte. OP-10 not only reduces cost but also increases battery energy density, which is more in line with the modification idea of "small dose and large effect" of additives.

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“…Owing to the unique advantage of PEO, the authors achieved a stable Coulombic efficiency (> 98.9%) with PEO for 1,500 cycles, whereas the cell without PEO failed after 500 cycles (Figure 10b). Similar advantages have been reported for PA. [85] The polyasparic acid maintained the relatively low surface roughness of the Zn film by changing the Zn crystal structure and reducing the side reactions; thus, stable operation at 0.5 mA cm À 2 and 0.5 mAh cm À 2 over 300 h was achieved.…”

Section: Additives To Inhibit the Growth Of Zn Dendritesmentioning

confidence: 97%

“…As a result, the electrostatic attraction between polar or polarized additives and the electrode promotes the adsorption of additives. Polyethylene glycol (PEG), [84] polyaspartic acid, [85] and gelatin [86] have been investigated as polymeric additives in previous research.…”

Section: Additives To Inhibit the Growth Of Zn Dendritesmentioning

confidence: 99%

Improving the Performance of Aqueous Zinc‐ion Batteries by Inhibiting Zinc Dendrite Growth: Recent Progress

Lim

Kim

et al. 2022

Chemistry An Asian Journal

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Aqueous zinc-ion batteries (ZIBs) are promising candidates for the next-generation high-energy storage devices, owing to their resource availability, low cost, ecofriendliness, and high safety. The zinc (Zn) metal anode in a suitable battery system, including an electrolyte and a highperformance cathode electrode, can deliver an excellent electrochemical performance. However, several obstacles must be overcome to utilize aqueous ZIBs. Among these, Zn dendrite growth, corrosion, and side reactions severely impair the performance of rechargeable ZIBs. To deal with these issues, a profound understanding of the mechanism of the matter occurring in electrochemical cycles is essential to thoroughly solve the challenges. Instead of focusing solely on techniques for improving the performance of Zn metal anodes, this review delves into and summarizes the causes of side reactions and dendrite formation, thereby establishing a logical system of methodologies for improving the electrochemical performance of mild aqueous ZIBs. The correlation between the Zn metal anode, aqueous electrolyte, separators and the performance of ZIBs is also discussed in detail. There is also a brief perspective on the future development of Zn metal anodes in aqueous solutions. This study sheds a light on the challenges associated with the construction of highperformance ZIBs, which will significantly aid in their practical implementation.

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Toward stable zinc aqueous rechargeable batteries by anode morphology modulation via polyaspartic acid additive

Cited by 55 publications

References 53 publications

In Situ Construction of Protective Films on Zn Metal Anodes via Natural Protein Additives Enabling High-Performance Zinc Ion Batteries

In Situ Construction of Protective Films on Zn Metal Anodes via Natural Protein Additives Enabling High-Performance Zinc Ion Batteries

Controlling Horizontal Growth of Zinc Platelet by OP‐10 Additive for Dendrite‐Free Aqueous Zinc‐Ion Batteries

Improving the Performance of Aqueous Zinc‐ion Batteries by Inhibiting Zinc Dendrite Growth: Recent Progress

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