Results 21 to 30 of about 9,857 (139)

Synergistic Anode/Cathode Optimization Engineering by Hierarchical Porous N‐Doped Carbon Fibers for Efficient Zinc Batteries

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The poor Zn chemistry of Zn metal anode and sluggish reaction kinetics of cathodes at high mass loadings are two crucial issues for hindering the application of aqueous Zn‐ion batteries (AZIBs). Herein, the hierarchical porous N‐doped carbon fibers (HPNCFs) were proposed to simultaneously optimize the reversibility of Zn plating/stripping of ...
Song Yang   +6 more
wiley   +1 more source

Achieving High‐Performance SiO@C Anode of Li‐Ion Batteries via a One‐Step Prelithiated Preparation Strategy

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Silicon oxide (SiO) is becoming the main anode for high‐energy lithium‐ion batteries because of its ease of manufacture, outstanding cycling stability, and high capacity. However, low initial Coulombic efficiency (ICE) caused by the irreversible reaction of silica, as the main issue, strictly limits its commercial applications.
Hailong Mei   +5 more
wiley   +1 more source

A High Capacity‐Long Cycling Concurrent Strategy of Ti3C2/MgH2 for Lithium Storage

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The excellent electrical conductivity and superior cycling stability render Ti3C2 MXene a promising Li ion battery anode. Nevertheless, the practical implementation of Ti3C2 MXene in commercial applications faces significant challenges, predominantly due to the low specific capacity.
Tingting Xu   +9 more
wiley   +1 more source

雷电过电压作用下配电网电涌保护器配合保护失效概率分析

open access: yesDianci bileiqi, 2019
为了有效利用电涌保护器进行雷电防护,需要对雷电过电压作用下配电网SPD配合保护进行分析。本文利用EMTP软件搭建简化配电系统模型对IEEE标准推荐压敏电阻片模型进行仿真冲击,通过累积能量计算前后级SPD失效概率以及整体配合失效概率,计算前后级SPD残压与分流,讨论雷电流的波尾时间、前后级SPD连接电缆长度、通流容量对配合失效概率的影响。研究结果表明:SPD两级高低配合方式下,终端用电设备过电压得到了有效的抑制;前级SPD承受大部分雷电流和能量 ...
李文君, 李鹏飞, 李传荣
doaj  

Double‐Hollow Porous Heterostructured CoP/Cu3P Microspheres for High‐Performance Asymmetric Supercapacitors

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT CoP has become a research hotspot for supercapacitor electrode materials because of its considerable theoretical capacitance and metalloid nature, but its commercial application remains hampered by structural instability and sluggish ion kinetics.
Gaoliang Wang   +8 more
wiley   +1 more source

6~10kV电网电容电流测试仪的研制

open access: yesGaoya dianqi, 2008
为了更安全、可靠且快捷地测量出6~10 kV电网的电容电流,笔者在总结现存电容电流测试方法的优缺点的基础上,提出了单相经电阻接地间接测量电容电流的方法,详细推导了其原理,给出了所设计的6~10 kV电网电容电流测试仪的硬件框图和软件流程。该测试仪可适用于各种小接地电流系统单相接地电容电流的测量。最后通过测试实例证明了该测试仪具有简单、易实施、测试过程安全、测量精度高、测试时间短等优点。
李晓波, 王崇林, 宗剑, 梁睿
doaj  

Carbon‐Insertion‐Engineered WS2 Hierarchical Heterostructure Enabling Superior Sodium‐Ion Storage

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Tungsten disulfide (WS2) is considered a promising anode material for sodium‐ion batteries (SIBs). However, its practical application is hindered by poor electrical conductivity, large volume changes during cycling, and sluggish ion diffusion kinetics, which lead to unsatisfactory electrochemical performance.
Xiuli Hu   +9 more
wiley   +1 more source

同时提高ZnO压敏电阻器的静态性能及冲击性能的方法 附视频

open access: yesDianci bileiqi, 2001
以往用于提高 Zn O压敏电阻器 8/2 0通流容量的方法对其静态性能有不良影响 ,笔者介绍了一种能同时提高 Zn O压敏电阻器的静态性能及 8/2 0冲击性能的方法。该方法通过调整 Bi2 O3、 Mn CO3含量 ,降低 Zn O压敏电阻器陶瓷晶界易迁移离子 ,改善晶界结构 ,可以在提高 Zn O压敏电阻器通流容量的同时降低电位梯度 ,改善静态漏电流及压比。
霍建华   +10 more
doaj  

Cu‐Enhanced Medium‐Entropy TiZrCoCrMo Alloys: Balancing Superior Antibacterial and Osteogenic Properties for Orthopedic Implants

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu   +9 more
wiley   +1 more source

Importance and spatial patterns of invisible fisheries in Amazonian clear‐water rivers as revealed by fisher knowledge and collaboration

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
The graphical abstract highlights the research collaboration with fishers through interviews to record fishers' knowledge and participatory monitoring, to provide data on small‐scale fisheries in three clear water rivers (Trombetas, Tapajos and Tocantins).
Renato A. M. Silvano   +10 more
wiley   +1 more source

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