As reported by AZoM in their article “New Material to Enable Flexible Batteries,” the challenge of protecting flexible electronics from intrusive gases or liquids has prompted an international team of researchers, including those from North Carolina State University (NCSU), to develop an innovative solution. Published in the February issue of the journal Science, their method involves the creation of a material capable of forming a hermetic seal to safeguard vital components, particularly flexible batteries.

Traditionally, materials used for protection in electronics are rigid, posing a challenge for flexible devices. However, the researchers at NCSU devised a solution using a stretchable elastic material, a eutectic alloy known as gallium and indium (EGaln). This alloy, in a liquid state at room temperature, was encased within an elastic polymer, creating a non-permeable, stretchy material.

To prevent pooling of the EGaln, microscale glass beads were incorporated into the polymer, ensuring an effective barrier against liquids and gases. This innovation essentially forms an elasticated alloy within a flexible sheath, offering robust protection against penetration.

To evaluate its effectiveness, the researchers conducted tests on liquid evaporation and oxygen retention within containers made of the new material, demonstrating its potential for various applications in flexible electronics.

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Article with all rights reserved, courtesy of azom.com

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