"The primary challenge in developing the acid layer is achieving the right balance between ionic conductivity and material stability"

In this latest interview, we sit down with Dr. Giuseppe Antonio Elia, Assistant Professor at Politecnico di Torino, where he shares insights into the challenges and innovations involved in creating a sustainable and high-performing electrolyte for ERZABs.

11 December 2024

In this latest interview, we sit down with Dr. Giuseppe Antonio Elia, Assistant Professor at Politecnico di Torino. As a key partner in the HIPERZAB project, Politecnico di Torino leads the development of the acid layer and electrochemical validation for Electrically Rechargeable Zinc-Air Batteries (ERZABs). Additionally, the institution contributes to the fabrication of the bilayer electrolyte, with a special focus on its mechanical characterization, and plays a vital role in integrating and testing the GEN0 device. Dr. Elia shares insights into the challenges and innovations involved in creating a sustainable and high-performing electrolyte for ERZABs.

 

What are the major challenges for developing the acid layer of the electrolyte?

The primary challenge in developing the acid layer of the electrolyte for the Electrically Rechargeable Zinc-Air Battery (ERZAB) lies in achieving the right balance between ionic conductivity and material stability. The acid layer needs to facilitate efficient zinc-ion transport while maintaining chemical and mechanical integrity over extended cycling. Additionally, it is crucial to ensure that the electrolyte is eco-friendly and can be produced from naturally occurring precursors, aligning with the project´s focus on sustainability. Compatibility with both the anode and cathode materials and operating under a wide range of conditions adds further complexity to the development process.

What type of precursors are you using?

We are employing a range of naturally occurring precursors for the electrolyte, focusing on biopolymers and eco-friendly additives to enhance both the ionic conductivity and the environmental sustainability of the materials. These precursors are selected to optimize the gel-based bilayer structure of the electrolyte, ensuring it performs effectively in mid-term energy storage applications. By using abundant and non-toxic materials, we aim to reduce reliance on critical raw materials while achieving high performance and durability in zinc-air battery configurations.

 

As Dr. Elia explains, Politecnico di Torino’s expertise in electrolyte development and electrochemical validation is crucial to overcoming the challenges of ERZAB technology. By focusing on the mechanical characterization of the bilayer structure and employing innovative materials, the team is advancing sustainable and efficient energy storage solutions. These efforts, along with the integration and testing of the GEN0 device, demonstrate the vital role of Politecnico di Torino in pushing the boundaries of zinc-air battery technology.

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