Printable gel electrolytes support bespoke battery architectures

Unlike conventional liquid electrolytes used in lithium-ion batteries, gel polymer electrolytes (GPEs) are immobilized within a polymer network, which reduces leakage risks, thereby improving mechanical and thermal stability. However, current methods for GPE fabrication result only in two-dimensional planar films, which can make their application into different battery geometries complex and costly. Researchers from the University of Texas at El Paso) have now demonstrated a scalable vat photopolymerization (VPP) process that enables the “printing” of GPEs directly into three-dimensional architectures, enabling their use in more complex or application-specific battery configurations.

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