Structural principle of wall-mounted energy storage battery

What are structural batteries?

This type of batteries is commonly referred to as “structural batteries”. Two general methods have been explored to develop structural batteries: (1) integrating batteries with light and strong external reinforcements, and (2) introducing multifunctional materials as battery components to make energy storage devices themselves structurally robust.

What is the practical application of rigid structural batteries?

The practical application of rigid structural batteries relies on addressing two critical core challenges: achieving structural and electrochemical performance that aligns with the multifunctional efficiency design principle (i.e., η s + η d> 1) through advanced materials, technological development, and a rational battery design.

Why are structural batteries important?

Lastly, safety standards are also of paramount importance for structural batteries. These batteries are designed to be integrated into the structural framework of systems, such as electric vehicles, exposing them to harsher mechanical conditions compared to conventional batteries.

Do structural batteries increase energy density?

However, the potential gain in energy density of externally reinforced structural batteries is limited by the additional mass of reinforcement and its mechanical properties, whereas integrated multifunctional structural components inside the battery ideally do not add extra weight to it.

Can material development improve the mechanical properties of structural batteries?

The material development can help enhance the intrinsic mechanical properties of batteries for structural applications but require careful designs so that electrochemical performance is not compromised. In this review, we target to provide a comprehensive summary of recent developments in structural batteries and our perspectives.

How does reducing battery weight affect energy storage?

Reducing battery weight not only increases energy density but also confers load-bearing properties to the energy storage setup. These integrated batteries, known as rigid structural batteries, effectively encapsulate the concept of structural energy storage.