Thioacetamide Additive Homogenizing Zn Deposition Revealed by In Situ Digital Holography for Advanced Zn Ion...

Area of Science:

• Electrochemistry
• Materials Science
• Energy Storage

Background:

• Zinc ion batteries offer low cost and high safety but suffer from Zn anode dendrite growth and corrosion.
• Current methods for screening electrolyte additives are time-consuming and labor-intensive.

Purpose of the Study:

• To develop a fast and simple in situ monitoring method for the electrode/electrolyte interface.
• To evaluate the effectiveness of electrolyte additives in preventing dendrite growth and side reactions.

Main Methods:

• Digital holography for in situ monitoring of the electrode/electrolyte interface.
• Analysis of ion concentration evolution in the diffusion layer.
• Forecasting and evaluation of thioacetamide as an electrolyte additive.

Main Results:

• Digital holography provides direct information on ion concentration and deposition homogeneity.
• The method effectively predicts dendrite growth tendency and assesses electrolyte additive applicability.
• Thioacetamide addition regulates ion flux for dendrite-free deposition and inhibits side reactions.

Conclusions:

• Digital holography is a time-saving and effective tool for interfacial investigation in zinc ion batteries.
• This method facilitates the screening of electrolyte additives and understanding of interfacial phenomena.
• The digital holography approach shows promise for investigating other battery systems under harsh conditions.