Yi Cui

TL;DR: Investigation of the propagation of respiratory droplets and aerosol particles generated by speech under a wide range of temperatures and relative humidity conditions shows that droplets can travel three times farther in low-temperature and high-humidity environment, whereas the number of aerosoli particles increases in high-tem temperature and low- Humidity environments.

TL;DR: In this article, the authors systematically tune this frequency across the mid-infrared range by annealing treatments in a reducing environment that produces high electron concentrations (∼1021 cm−3).

TL;DR: This work uses ultrafast X-ray spectroscopy and scattering techniques to obtain an atomic-level, real-time view of the transition state in copper sulphide nanocrystals and observes the transformation to occur on a twenty picosecond timescale and shows that this is determined by the ionic hopping time.

TL;DR: It is shown that a nonuniform temperature distribution within the battery can make local plating of Li above 0 V vs. Li0/Li+ thermodynamically favorable, causing the likelihood of this failure mechanism during commercial Li-ion battery operation, including both slow and fast charging conditions to be confirmed.

TL;DR: In this article, the layer-structure LiCoO2 phase, the most commonly used electrode material in organic systems, can be successful delithiated and lithiated again in a water-based electrolyte at currents up to 2.70