Results 21 to 30 of about 11,568 (120)

Revealing the Roles of Electrolyte Concentration on Transition Metal Dissolution and Reaction Pathway of Anion Adsorption Pseudocapacitance

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Conventional lithium‐ion battery cathodes predominantly rely on reversible lithium intercalation in bulk, which inevitably induces phase transitions, transition metal migration, and voltage decay. Electrolytic anion adsorption pseudocapacitance provides a chance for bypassing these issues via a surface‐dominated reaction, especially in ...
Hongjin Ren   +10 more
wiley   +1 more source

LiNbO3M-Z干涉仪式强度调制器电极设计研究

open access: yesGuangtongxin yanjiu, 2000
介绍了 L i Nb O3M- Z干涉仪式强度调制器共面波导 (对称三电极结构 )行波电极的电极宽度、电极间隙、电极厚度以及电极长度的优化设计。
裴丽, 简水生
doaj  

Defect Engineering of Carbon Frameworks Driven All‐Slope Hard Carbon Anodes for Fast‐Charging Sodium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Fast‐charging capability is one of the crucial factors determining the application prospects of sodium‐ion batteries (SIBs). Nevertheless, the mismatched sodium storage kinetics and Coulombic efficiency (CE) in hard carbon anodes are bottlenecks in the implementation of fast‐charging SIBs. Herein, we propose a facile pre‐carbonization strategy
Qixin Liu   +8 more
wiley   +1 more source

Multifunctional Integration in a Monolithic Biomass Carbon: A Triple‐Synergistic Host for Advanced Lithium–Sulfur Batteries

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Lithium–sulfur (Li–S) batteries are promising for next‐generation high‐energy‐storage systems but are hindered by polysulfide shuttle, sluggish kinetics, and volume expansion. Conventional carbon hosts struggle to simultaneously anchor and convert polysulfides efficiently.
Ling Chen, Peng Xu, Jiaojing Shao
wiley   +1 more source

Dual‐Layer Solid Electrolyte Interphase Enables Effective Suppression of Lithium Dendrites

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT The heterogeneous solid electrolyte interphase (SEI) at the Li metal anode often leads to slow and uneven Li+ flux, causing severe Li dendrite growth. Herein, we combine X‐ray photoelectron spectroscopy and cryogenic transmission electron microscopy to demonstrate that a dual‐layer SEI, consisting of an inorganic inner layer and an organic ...
Huaping Wang   +4 more
wiley   +1 more source

小电流下弧根运动对空气直流电弧的影响

open access: yesGaoya dianqi, 2023
阴极弧根为电子发射的主要区域,弧根的运动对空气直流电弧等离子体特性有重要意义。通过电极旋转驱动阴极弧根运动,实验观测得到电极旋转情况下空气直流电弧拉弧过程电极表面烧蚀情况、扭曲的弧柱形态,同时提取并对比了直线拉弧和旋转拉弧的电弧电压上升曲线。参照临界电流试验条件,建立小电流下平行电极间三维电弧仿真模型,探究在小电流情况下,自由燃烧态电弧的演变过程。仿真结果表明:阴极弧根运动使得发射后极间带电粒子空间分布变化,间隙放电通道改变,电弧的最大温度值降低;当电弧放电通道不稳定时,极间电弧电压出现波动 ...
付思, 陈文清, 曹云东
doaj  

Doping‐Engineered Modulation of Oxygen Vacancy Formation Energy in Gallium Oxide for High‐Performance Solar‐Blind UV Photodetectors

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Solar‐blind ultraviolet (UV) photodetectors (SBPDs) play a critical role in applications including UV communication and fire warning systems. Gallium oxide (Ga2O3) has emerged as a promising material due to its wide bandgap and low cost, but suffers from high dark current and slow response speed caused by oxygen vacancy (VO) defects. This work
Yuhao Lin   +14 more
wiley   +1 more source

多电极气体放电管与ZnO压敏电阻匹配性能的研究

open access: yesDianci bileiqi, 2015
针对多电极气体放电管与ZnO压敏电阻匹配使用的问题,根据多级气体放电管及ZnO压敏电阻的工作原理,ZnO压敏电阻并联在多电极气体放电管的两个电极上,能够有效的降低多电极气体放电管在辉光放电时的残压,并且进行相应的分流。利用汤森理论对多电极气体放电管的辉光、弧光放电进行模型等效,并使用开路电压波(1.2/50μs)、8/20μs雷电冲击平台、组合波(1.2/50μs,8/20μs)进行冲击试验,验证了多电极气体放电管模型等效的正确性 ...
李祥超   +4 more
doaj  

Acoustically Assisted Heterojunction Hydrogel Promotes Angiogenesis and Tissue Regeneration by Modulating the Inflammatory Microenvironment

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT The healing of diabetic chronic wounds is hindered by multiple pathological barriers, including oxidative stress imbalance induced by hyperglycemia, persistent bacterial infection, and impaired neovascular function. This study developed an F127–HA–BiOCl@CeO2 (FHBC) hydrogel dressing with acoustic responsiveness, achieving tissue repair through
Ran Zhao   +8 more
wiley   +1 more source

直流深井接地极接地电阻的人工布线测量

open access: yesGaoya dianqi, 2019
深井接地极因占地面积小,选址容易的优点,具有很高的工程实用价值。由于单根深井接地极最大对角线距离不到1 m,明显不宜直接采用规程推荐的5倍对角线距离人工布线测量接地电阻。为此,文中建立了直流深井接地极模型,仿真计算了其接地电阻和地表电位分布,基于之提出了电流极距离要求;建立了深井接地极注流、电流极回流的模型,研究了接地电阻测量过程中深井接地极和电流极共同作用下的地表电位分布规律;结合深井接地极接地电阻的仿真计算值,分析获得了电压极的布置要求。改变电流极和电压极的位置,研究了测量误差与布线距离之间的关系 ...
陈家峰   +6 more
doaj  

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