Results 21 to 30 of about 13,064 (128)
Electrolyte With Functionalized Boron Nitride Nanosheets for Dendrite‐Free Lithium Metal Anodes
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Lithium metal batteries (LMBs) are regarded as promising candidates for the next‐generation high‐energy‐density storage systems due to their unparalleled theoretical energy density and low redox potential. However, the commercialization of LMBs is tremendously plagued by the barbaric growth of lithium dendrite and the intricate decomposition ...
Ji Zhou +5 more
wiley +1 more source
Gaoya dianqi, 2006 同轴结构电极在高脉冲功率装置中广泛存在。利用ANSYS有限元数值计算软件包仿真计算内电极直径、闪络距离、固体介电常数等参数变化时对同轴空间电位（电场）的影响;与解析解比较,确定同轴电极边缘效应的变化趋势,得到同轴电极边缘效应不影响固体表面闪络特性的电极有效长度;给出一定内电极直径范围内的最小电极长度与内电极直径、闪络距离之间的参考关系式,对同轴电场下闪络特性的实验研究有着重要的指导意义。
黄文力, 孙广生, 李光杰
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT As a promising alternative to sluggish Li2CO3‐based Li‐CO2 electrochemistry, Li2C2O4 offers a favorable 2e− discharge pathway, yet its selective formation and reversible decomposition remain debated. Herein, we propose a nonmetal‐metal synergistic catalyst—B‐Ti coregulated layered transition metal boride Ti18B18O9/graphene (B‐Ti/TiBOG)—to ...
Qiong Peng +8 more
wiley +1 more source
Gaoya dianqi, 2016 减少SF6温室气体的使用,对绿色电网有重要意义。目前对SF6替代气体的研究主要集中在常温环境下,对能够在极寒地区使用的替代气体研究还不多。CF4具有明显的电负性,同时液化温度较低。文中在稍不均匀电场下、正负两种极性雷电冲击作用下,研究了CF4及其N2混合物绝缘特性。研究结果表明:CF4/N2混合气体击穿电压随混合比增加有明显的饱和效应,20%混合气体具有较低液化温度和GWP指数,同时绝缘强度良好,具备在极寒地区使用的潜力;通过对混合气体的协同效应分析发现:CF4/N2混合气体协同效应随气压升高而变得明显,
李卫国 +3 more
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Gaoya dianqi, 2020 提出一种利用自适应采样间隔Prony算法对去极化电流数据进行拟合,进而辨识出徳拜等效电路参数的方法。根据扩展德拜等效模型下去极化电流指数函数叠加的物理性质,对传统单采样间隔Prony算法进行改进:根据不同大小时间常数去极化电流子谱线的衰减特性实现采样间隔的自适应选择,利用自适应采样间隔对去极化电流数据进行多次Prony拟合,得到相应时间常数的子谱线弛豫参数,进而辨识出油纸绝缘的徳拜电路参数;搭建扩展徳拜模型仿真平台得到PDC仿真数据进行拟合,验证了自适应采样间隔Prony算法对徳拜电路参数辨识的准确性 ...
高浩, 刘庆珍, 蔡金锭
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The Schottky barrier height (SBH), which serves as a pivotal determinant of charge carrier injection efficiency in electronic devices, critically governs electrical behavior at metal/semiconductor interfaces. However, pronounced metal‐induced gap states at metal contact interfaces induce Fermi‐level pinning, which constrains the ...
Xiaofei Liu +10 more
wiley +1 more source
极不均匀场下SF6/CF4混合气体中环氧树脂绝缘子沿面闪络特性研究
Gaoya dianqi, 2018 文中通过实验手段研究SF6/CF4混合气体中环氧树脂复合材料绝缘子试样的直流沿面闪络特性,实验中采用针—板电极结构模拟极不均匀电场情况,分析了气体压强、SF6混合比以及电压极性对闪络电压的影响规律。实验中,电极间距为5 mm,实验气压为0.10.4 MPa。实验结果表明:当混合气体中SF6混合比为40%时,在实验气压范围内,绝缘子闪络电压可达到相同气压SF6中闪络电压的60%以上。针—板电极下SF6/CF4混合气体闪络电压的协同效应在正、负极性下区别显著,负极性下的协同效应较弱。同时 ...
翟芷萱 +4 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Proton exchange membrane fuel cells (PEMFCs) require advanced bipolar plate coatings to enhance efficiency, durability, and commercialization potential. This review presents a systematic framework for evaluating and designing bipolar plate coatings, integrating material selection, performance metrics, deposition techniques, and future ...
Shijie Li +12 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of sodium‐ion batteries (SIBs) is limited by slow charge transfer kinetics and large material volume changes caused by the large radius of Na+. Leveraging the excellent physicochemical properties and unique heterostructures of metal selenides, ultrafine hetero‐CuFeSe2‐CoSe2 nanoparticles are in situ wrapped by ...
Ying Zhu +5 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2020 为研究过焊孔衬板连接焊缝对梁柱连接节点断裂性能的影响,设计了3个栓焊混合连接边柱节点试件进行低周往复加载试验,研究试件的断裂特性及极限承载能力,建立三维有限元计算模型,以Ⅰ型裂纹尖端应力强度因子KⅠ和J积分作为评价指标,对比分析了过焊孔衬板连接焊缝对节点断裂性能的影响。研究结果表明:过焊孔衬板带双边焊缝节点试件的延性系数、等效粘滞阻尼系数和极限承载力与带单边焊缝节点试件的对应值相比,分别提高了29%、31%和23%;过焊孔衬板带四边围焊缝节点试件的延性系数 ...
王燕, 倪延顺, 杨怡亭
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