A Ti3C2Tx/CNTs@P nanohybrid with stable Ti–O–P bonds is simply fabricated, which exhibits high capacity, excellent long-term cycling stability and superior rate capability as an anode for lithium ion batteries.
Using fluffy carbon prepared from expanded rice, carbon-coated red phosphorus composites with a stable structure were synthesized via a simple ball milling route, which exhibited ultra-long cycle stability and excellent rate capability as anode for lithium-ion batteries.
Li/fluorinated carbon (Li/CFx) batteries are promising systems with ultrahigh energy density and long storage life. They are particularly suitable for emerging applications in military equipment, interventional medical devices, and spacecrafts....
The resolution of astronomical imaging from large optical telescopes is usually limited by the blurring effects of refractive index fluctuations in the Earth's atmosphere. In this letter, we develop a lucky imaging system to restore astronomical images through atmosphere turbulence on large telescope. Our system takes very short exposures, on the order of the atmospheric coherence time. The rapidly changing turbulence leads to a very variable point spread function (PSF), and the variability of the PSF leads to some frames having better quality than the rest. Only the best frames are selected, aligned and co-added to give a final image with much improved angular resolution. Our lucky imaging system is successfully applied to restore the astronomical images taken by a 1.23 m telescope. We get clear images of moon surface, Jupiter, and Saturn, and our system can be demonstrated to greatly improve the imaging resolution through atmospheric turbulence.
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