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Using computer simulations, a Ruhr-University Bochum (Germany) researcher has shown that the oxygen molecule (O2) is stable up to pressures of 1.9 terapascal, which is about nineteen million times higher than atmosphere pressure. Above that, it polymerizes, i.e. builds larger molecules or structures.

Researchers at the Massachusetts Institute of Technology have come one step closer to replacing the lithium-ion batteries that power phones, laptops and electric cars with a device that stores far more energy for the same weight. The device is known as a lithium-air or lithium-oxygen battery.

(PhysOrg.com) -- After several hours of exposure to sunlight, silicon solar cells experience light-induced degradation, which can decrease their efficiency by up to 10%. In a new study, scientists have attempted to detect the oxygen dimer (O2i) in the predicted charge state that is widely considered to play a key role in this light-induced degradation. However, their search has been unsuccessful, casting doubt on the accepted degradation mechanism of silicon solar cells.