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与插层型锂离子电池（LIB）相比，转换型锂硫（Li-S）电池因为其高理论能量密度（2600 Wh kg-1）而受到越来越多的关注。但是，多硫化物穿梭效应、缓慢的反应动力学和锂金属枝晶生长等问题阻碍了锂硫电池的进一步应用。硫正极的多步转化反应涉及电极/电解质之间一系列Li+的交换，这些反应也亟需克服脱溶剂和电荷载体扩散的能量势垒，这导致了缓慢的转化动力学以及多硫化物中间体的积累。
Titanium-capped carbon chains as promising new hydrogen storage media
Titanium-capped carbon chains promising new hydrogen storage media
2010/11/23
The capacity of Ti-capped sp carbon atomic chains for use as hydrogen storage media is studied using first-principles density functional theory. The Ti atom is strongly attached at one end of the carb...
Storage of quantum coherences as phase labeled local polarization using magnetic field gradients in NMR
Storage of quantum coherences phase labeled local polarization magnetic field gradients
2010/10/18
Long decay times were previously observed in samples such as 29Si, C60,Y2O3 by applying multi-
pulse nuclear magnetic resonance sequences to measure decoherence times. They are originated in
stimula...
Analytical treatment of the nonlinear electron cloud effect and the combined effects with beam-beam and space charge nonlinear forces in storage rings
electron cloud effect beam-beam effect space charge effect BEPCⅡ
2009/8/17
In this paper we treat first some nonlinear beam dynamics problems in storage rings, such as beam dynamic apertures due to magnetic multipoles, wiggles, beam-beam effects, nonlinear space charge effec...
Application of PMA Towards Moderating the Charge Storage Capability of MIS Memory Cell Based on PECVD Deposited Silicon Nitride Thin Films
PECVD Nitride films C-V G-V I-V P M A hysteresis and memory window
2010/4/9
A memory capacitor formed from Al/Si3N4/Si was prepared by means of trapping and de trapping mechanism of the dielectric films. Charge trapping and interface state characteristics of silicon nitride (...