#Materials3

20 Dec 2025

Why Rechargeable Batteries Lose Performance

Researchers found that repeated charging and discharging makes batteries expand and contract, causing tiny shape changes and stress. This “chemomechanical degradation” and spreading strain reduce performance and shorten battery life, and imaging revealed how it happens.

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Photo by František G., Unsplash

8 Dec 2025

ETH Zurich makes nano-scale OLED pixels

Researchers at ETH Zurich created organic light-emitting diodes (OLEDs) at the nanoscale, with pixels down to about 100 nanometres. The team showed a logo of 2,800 nano-OLEDs and reports large gains in pixel density and new applications.

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25 Nov 2025

New physics model links molecular motion to MRI signals

Researchers at Rice University and Oak Ridge National Laboratory developed a physics-based model, presented in The Journal of Chemical Physics, that links molecular-scale motion to MRI signals and may improve image clarity.

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