Results 71 to 80 of about 31,765 (178)
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT To meet the escalating demand for high‐performance LiCoO2 (LCO) cathodes, elevating the charging cut‐off voltage becomes highly imperative to achieve markedly enhanced specific capacities. However, high‐voltage operation is always accompanied by structural instability, notably deleterious bulk phase transitions and severe interfacial ...
Jiawei Mu +7 more
wiley +1 more source
Gaoya dianqi, 2023 矿区通常地处偏远、电力基础设施薄弱，随着可再生能源发电的占比提高，导致矿区电网呈现弱电网特性。文中提出了面向矿区复杂电网工况的储能控制技术，实现了矿区电网稳定性的提升。首先，文中研究了储能在矿区电网中供电结构及工作模式。其次，针对VSG控制技术在孤岛应急运行模式和弱电网并网运行模式下的运行特性进行分析。再次，针对弱电网下的VSG并网稳定性缺失的问题，提出了改善弱电网下电压稳定性的构网型VSG控制策略，并提出了一种预同步切换策略减少矿区电网工况切换状态过程中的暂态冲击。最后，对所提方法进行仿真案例分析 ...
罗家林 +4 more
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Divergent Electrochemical Behaviors of O2 and O3 Phases in Li‐Rich Layered Oxides
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Lithium‐ion batteries (LIBs) have dominated the landscape of electrochemical energy storage for decades. The growing market demands for higher energy densities are pushing against the limitations of conventional cathode materials. Li‐rich layered oxides (LLOs) present a promising path forward by harnessing both cationic and anionic redox ...
Juncheng Huang +9 more
wiley +1 more source
Dianci bileiqi, 2002 Zn O非线性电阻内部的气隙和微裂纹构成了其表面与环境联系的复杂通道 ,将内部能延缓 Zn O电阻老化的氧原子不断扩散到大气中 ,导致 Zn O非线性电阻内部的稳定因素氧原子减少而引起性能发生老化。另外微裂纹有可能是潮气进入 Zn O非线性电阻内部的通道 ,潮气将形成电阻通道而导致电阻片性能变差。
裴根林, 何金良
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Self‐supporting aluminum (Al) foil anodes offer the advantages of high energy density, simplified structural configuration, and low cost. However, their practical application is severely constrained by challenges such as low initial Coulombic efficiency, pronounced interfacial side reactions, and sluggish lithiation kinetics.
Sheng Yang +8 more
wiley +1 more source
Dianci bileiqi, 2007 掺杂Y2O3可显著提高ZnO-Bi2O3系压敏电阻的电位梯度、能量吸收能力等电气性能,但会引起泄漏电流的增加。研究了不同烧成温度下,掺杂0～1.7%（摩尔分数）Y2O3对ZnO-Bi2O3压敏电阻片电气性能的影响。结果表明,在1140℃下,掺杂0.68%（摩尔分数）Y2O3,可获得具有300V/mm的电位梯度和370J/cm3能量吸收能力的高性能电阻片。此外,以FSM为主成分的“F”无机高阻层适宜于高梯度压敏电阻片的侧面绝缘,加速老化系数KCT小于1。
王玉平, 马军
doaj
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Advanced metallic glasses, leveraging their ultrahigh strength, excellent corrosion resistance, superior soft magnetic properties and good biocompatibility, have gradually become indispensable strategic cornerstones in critical fields such as aerospace, electronic information and energy power. This unique combination of properties enables them
Yizhou Liu +11 more
wiley +1 more source
Dianci bileiqi, 2013 由于地线导弧间隙在运行中存在放电分散性大,灭弧能力随机性强等问题,为了优化和改善330 kV和750 kV输电线路架空地线导弧间隙的放电特性和灭弧性能,对目前工程上使用的不同类型的地线导弧间隙进行了工频放电电压特性、雷电冲击伏秒特性和操作冲击伏秒特性试验以及灭弧性能试验研究。结果表明,在330 kV和750 kV系统中使用的间隙距离下,导弧间隙满足在工频过电压和操作过电压下不放电而在雷电过电压下可靠放电的要求;灭弧性能试验表明电流幅值过小或过大均会使导弧间隙灭弧时间变长,重燃率增加 ...
刘强, 郭洁, 解秀余, 张汇博
doaj
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The low energy density of sodium‐ion batteries (SIBs) remains a major barrier to their large‐scale deployment. Alloy‐based anodes represent a promising class of materials owing to their high specific capacity and low operating potential for sodium storage. However, their practical application is hindered by severe volume expansion upon cycling.
Chen Wang +10 more
wiley +1 more source
Gaoya dianqi, 2010 风电场并网运行会对电力系统的安全性、稳定性、电能质量、系统可靠性、电源和电网规划等方面带来一定的影响,针对这些问题,笔者介绍了风力发电的特点以及我国风力发电的现状和发展方向,分析了风电场并网运行的特性及其对电力系统的安全、调度、电能质量和稳定性的影响,最后提出了改善风电场运行性能的对策。
王天施, 苑舜
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