Results 11 to 20 of about 21,700 (194)
水电科技, 2022 煤矿智能化飞速发展之下，对于本质安全电路的要求越来越高，电路的复杂性也有了极大地提升，而实际电路运行过程中，放电产生的火花是引燃可燃性气体的主要能源，对于电路运行安全造成了极大的威胁。此次研究的主要目的在于明确复杂本质安全电路容性放电的引燃特性，并以此为基础保障电路运行的安全性和稳定性。对此，简要介绍了容性放电，并分析了复杂本质安全电路的一般形式以及放电原理，通过对放电特性的分析，建立放电电流、放电功率的数学模型，然后以相应模型为基础，通过仿真软件，分析影响电流以及功率的主要因素，结果表明 ...
梅 甘
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水电水利, 2020 发电厂、变电所能够安全稳定运作,其核心系统便是直流系统。本文选取新疆某电厂作为研究对象,就其电厂直流系统免维护蓄电池在运行过程中产生的困难进行分析,汇总出一套适用于电厂的维护经验。如：如何延长电池的使用年限,对单个电池可采用在线充电的方法等,提高运行效率。
志清 李
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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
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The past decade has witnessed a burgeoning demand of metals for global industrial development and infrastructure. Meanwhile, the depletion of mineral resources and the environmental damage caused by wastewater discharges pose significant threats to both economic and ecological sustainability. Fortunately, metal‐containing wastewaters also hold
Fei Zhang +6 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT In conventional piezoceramics, the coordinated change between the dielectric constant (εr) and the piezoelectric charge constant (d33) usually limits the piezoelectric voltage constant g33 (g33 = d33/εr), a critical figure of merit for piezoelectric sensors.
Xiaoying Feng +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Developing Cu‐based composites that simultaneously achieve ultra‐high strength, ductility, and electrical conductivity remains critical for advanced electrical contact applications. In this work, multiphase AlCrCuFeNi2.5 high‐entropy alloy (HEA) reinforcements are incorporated into CuCrZr matrix via spark plasma sintering (SPS) and annealing ...
Tao Hong +8 more
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A Green Anodic Electrolysis Strategy for Recovering Copper and Selenium From Cuprous Selenide
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Selenium, a rare strategic metal, is essential for advanced technologies and biological systems. Cuprous selenide (Cu2Se), a selenium‐rich compound found in copper anode slime and a promising thermoelectric material, holds great potential for recovery.
Jihua Li +7 more
wiley +1 more source
Plasma‐Boosted Bi2Mn4O10 Electrocatalysis Enables Real‐Time On‐Board Monitoring of CO2 in Exhaust
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Real‐time monitoring of CO2 concentration in automobile exhaust is critical for effective carbon emission reduction. However, the inherently inert nature of CO2 poses a significant challenge for achieving accurate and efficient detection in the exhaust automobile environment.
Aining Jiang +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Biomass‐derived quinones are promising green and sustainable cathode materials for sodium‐ion batteries (SIBs), yet their practical application is hindered by poor cycling stability due to dissolution in conventional electrolytes. Herein, we demonstrate that sodiumation is an effective strategy to enhance both rate capability and cycling ...
Xinyue Zhu +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Chemically self‐charging aqueous zinc‐ion batteries (AZIBs) have emerged as promising candidates for energy storage technologies owing to their environmental autonomy and structural simplicity. Nonetheless, the self‐charging performance is significantly compromised by the limited potential difference between cathodes and oxygen, as well as the
Yan Wang +5 more
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