Slippery Nanopores Triple Power from Sea‑Freshwater Mix, Paving Way for New Renewable Energy

Researchers at the Swiss Federal Institute of Technology (EPFL) have invented a new kind of membrane that could make “blue energy” – electricity generated by mixing salty sea water with fresh river water – far more powerful and practical. The team coated tiny pores, just a few billionths of a meter wide, with a thin layer of lipid molecules. This coating creates a slick, water‑friendly surface that lets charged particles (ions) zip through the pores with far less resistance, while still keeping the flow highly selective. In laboratory tests, the new membrane produced two to three times more electrical power than the best existing designs. Blue energy has long been praised as a clean, endless source of power because the ocean and rivers constantly mix, but until now the technology has struggled to generate enough electricity to be useful. By dramatically boosting the efficiency of ion transport, the EPFL breakthrough could bring osmotic power closer to commercial reality, offering a renewable complement to solar and wind that works day and night wherever fresh and salty water meet.

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China’s New‑Material Marvels Power Solar, Batteries, and Wearables

China is turning the tide in high‑tech materials, delivering breakthroughs that could reshape energy, aerospace and consumer gadgets. Researchers at Tianjin University have perfected flexible organic optoelectronic films that are ultra‑light, thin and printable like ink. The new formulas keep strong light‑to‑electric conversion while resisting tears, meaning they can be stretched repeatedly without losing performance – a key step toward roll‑up phones, electronic skin and wearable health monitors. In solar power, a team at the Qingdao Institute of Energy has cracked the long‑standing problem of metal‑ion migration in copper‑zinc‑tin‑sulfur‑selenium cells, pushing photo‑conversion efficiency past the 15 % mark. The material is cheap, abundant and non‑toxic, promising cheaper, greener panels. Meanwhile, scientists at Beijing University of Posts and Telecommunications have shown that gallium oxide, a wide‑bandgap semiconductor, can exhibit room‑temperature ferroelectricity, giving it memory‑storage capabilities and opening a new class of high‑power, extreme‑environment chips. In the battery arena, Nankai University and Shanghai Space Power researchers have designed a fluorinated electrolyte that lets lithium‑metal cells store up to 700 Wh/kg at room temperature and still deliver about 400 Wh/kg at –50 °C, ideal for electric vehicles, robots and space missions. These advances are being hailed as the foundation for strategic industries, strengthening supply‑chain resilience and accelerating China’s push toward a high‑quality, innovation‑driven economy.

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