Lithium metal anodes are regarded as the most promising candidate for rechargeable lithium‐based batteries, but uncontrollable Li dendrites hinder further applications. Here, sine‐wave analogous MXene (Ti3C2Tx) (SWA‐MXene) layers are produced by spreading aqueous MXene dispersion onto the sectional surface of a metallic coil and subsequently drying at room temperature. COMSOL Multiphysics simulations demonstrate that the low curvature in SWA‐MXene layers homogenizes the distributions of lithium ions and electric field, efficiently eliminating the lightning‐rod effect on the surface of aligned electrodes in the process of Li deposition. As a result, the flexible SWA‐MXene layers show a low overpotential for lithium nucleation (≈13.5 mV at 0.05 mA cm−2) and deep plating–stripping capacities up to 40 mAh cm−2, as well as a long cycle life up to 1250 h. Full cells consisting of a SWA‐MXene–Li anode and a LiFePO4 cathode also exhibit a durable cycle life up to 420 cycles at 1088 mA g−1.

The characteristic of Erbium-doped superfluorescent fiber source was introduced. The double pass backward configuration superfluorescent fiber source was demonstrated mainly and two wavelength selected reflector, thin file filter and fiber bragg grating, were taken to form two superfluorescent fiber source. Their whole parameters, including power, spectrum and spectrum width, were tested, the coherence was calculated and the mean wavelength temperature stability is tested too. The result proved the superfluorescent fiber source with thin film filter and fiber bragg grating are both suitable to inertial grade fiber optic gyroscope.

No abstract

No abstract

No abstract