Results 1 to 10 of about 7,493 (117)
Gaoya dianqi, 2022 容性电流开断能力，特别是C2级开断能力，已成为断路器满足工程需求的关键指标，因开断过程中易发生重击穿故障而导致试验失败的风险较大，故需对其容性开断能力进行评估。基于容性电流特点，文中采用“恢复电压”及“最小临界电压”评估其开断容性电流能力，且“恢复该电压”低于“最小临界电压”时，断路器具有开断容性电流的能力。采用电场及气流场耦合分析方法，断路器开断性能进行评估，得到试验工况下“恢复电压”均小于“最小临界电压”，表明该断路器具有容性电流开断能力，顺利通过C2级试验验证，进一步表明采用“最小临界电压 ...
郭自豪 +8 more
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Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Sb2S3 is regarded as a promising anode for sodium‐ion batteries (SIBs) because of its high theoretical capacity and moderate working potential. However, it suffers from huge volume changes, poor conductivity, and excessive side reactions, leading to severe capacity decay and a low initial Coulombic efficiency (ICE), thus limiting its practical
Jia‐Hao Zhao +6 more
wiley +1 more source
Overdischarge Induced Porous Graphite for Upcycling of Spent Lithium‐Ion Batteries
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT The upcycling of spent lithium‐ion batteries (LIBs) into high‐performance materials offers both economic and environmental benefits. In this study, the principle of battery discharge‐induced copper dissolution and deposition is applied to fabricate a graphite/nanocopper composite anode.
Yadong Wang +13 more
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Dianci bileiqi, 2023 随着我国直流输电技术快速发展，多项直流输电工程投入运行，形成了“强直弱交”的电网特征。直流输电线路双极闭锁会造成送端系统换流站母线电压升高，而电压上升幅度与直流输送容量相关，因此送端系统暂态电压升高导致实际直流输送容量小于额定值。本研究提出了一种基于新型磁控电抗器的送端系统暂态电压升高抑制方法，并以鲁固直流为试验对象开展仿真试验，仿真结果表明，未接入新型磁控电抗器时，最大直流输送容量为7 500 MW,接入合适容量新型磁控电抗器后，最大直流输送容量提升至额定容量10 000 MW。
窦宇宇 +5 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Aqueous Zn‐ion batteries (AZIBs) are expected to become one of the most promising candidates for large‐scale energy storage, but are impeded by uncontrollable dendrite growth and parasitic reactions. In this study, we propose a simple mechanical shot‐peening (SP) approach for restructuring commercial Zn foils into highly exposed (002)‐textured
Xu Ma +7 more
wiley +1 more source
Bidirectional Interfacial Chemical Regulation Enables Durable Aqueous Zn‐I2 Batteries
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Aqueous Zn‐I2 batteries hold great promise for large‐scale energy storage, yet their practical deployment is hindered by coupled interfacial instabilities at both electrodes, where Zn‐anode parasitic reactions and cathodic polyiodide shuttle mutually aggravate each other.
Zimian Jia +8 more
wiley +1 more source
Functionalized Silica‐Constructed Self‐Supporting Composite Separator for Lithium Metal Batteries
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Lithium metal batteries (LMBs) are considered highly promising next‐generation energy storage systems owing to their exceptionally high theoretical specific capacity and ultralow electrochemical potential. Nevertheless, the practical deployment of LMBs is still severely restricted by the uncontrollable formation and propagation of lithium ...
Li Chen +6 more
wiley +1 more source
Gaoya dianqi, 2007 介绍了一种新的金属氧化物避雷器（MOA）阻性电流分量的测量方法——电容电桥法,以电容电桥的电容器臂的电容电流作为补偿参考信号,来平衡、补偿MOA全泄漏电流中的容性电流成分,以得到流过MOA的阻性电流分量。实验结果表明,电容电桥的减法功能可以在很大程度上使MOA和泄漏电流上的谐波与电容器臂的电容电流上的谐波相抵消,且实现简单、易行,可以在实验室将波形显示在示波器上,并进行清晰地观察和对比。
宫建立, 秦松林
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Sodium‐ion batteries (SIBs) offer a promising, cost‐effective alternative for large‐scale energy storage due to the abundance of sodium. However, their practical deployment is challenged by sluggish interfacial kinetics and unstable interphase formation, which severely limit performance across wide temperature ranges. Here, we demonstrate that
Mingxing Zhang +10 more
wiley +1 more source
Gaoya dianqi, 2019 电力电子变压器网侧级联H桥整流器需采用中大功率高压直流电容器来维持直流电压稳定,因此如何稳定直流侧电容电压以及降低电容容值尤为重要。文中首先建立级联H桥整流器平均数学模型,依据瞬时功率平衡推导出直流侧电容谐波数学模型并进一步分析对电路产生影响。提出一种基于陷波器滤波算法用于动态检测并抑制直流电容电压倍频干扰,在不增加直流电容器情况下实现降低直流电容和抑制直流电压振荡,同时采用载波移相调制算法引入脉冲补偿机制实现电压平衡控制。最后通过MATLAB/Simulink仿真平台验证,结果表明 ...
宋平岗 +4 more
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