Results 11 to 20 of about 13,187 (169)
ABSTRACT High‐capacity SiOx/graphite (SiO/G) anodes offer great potential for advancing lithium‐ion battery technology; however, their practical application is limited by low initial coulombic efficiency (ICE) and rapid capacity decay. These challenges primarily arise from unstable phase transitions and the formation of the solid electrolyte interphase
Wan‐Xing Zhang +14 more
wiley +1 more source
ABSTRACT By adding CuO, the worm‐like amorphous phase and atomic clusters were simultaneously introduced, enabling the (Ni40Ti40Cu20)99.9O0.1 alloy micron columns to exhibit a uniform flow strain of over 40% and a strength of over 2.5 GPa during compression.
Huwen Ma +13 more
wiley +1 more source
Capacitor theory and triboelectric nanogenerator(电容器理论与摩擦纳米发电机)
研究了当电容器内的电介质表面带电荷时电容器的电容和储能,得到二者在形式上与传统电容器完全相同,但所带电量需根据介质表面所带电量进行修正。利用电容理论研究了接触分离式摩擦纳米发电机(triboelectric nanogenerator,TENG)的输出性能,经理论推导和数值计算,得到了接触分离式TENG的电量、电压与输出电流。最后根据理论计算结果详细讨论了TENG的电荷转移过程。研究不仅推广了电容相关理论,而且完善了对TENG工作原理的描述。
芮品淑(RUI Pinshu) +1 more
doaj +1 more source
The Design and Realization of Electric Power Quality Monitoring System Based on Virtual Instrument Technology [PDF]
在电力市场环境下,电能质量将影响电能的价格。随着我国经济的发展,各种工业生产对电能质量的要求越来越高,及时准确地得到电能质量参数,对于工业生产有重要的指导意义。不同的电力用户对电能质量有不同的需求,解决电力系统的电能质量问题,首先就需要对电能质量参数进行实时的监测和分析,从而能够正确评估电能质量的好坏,及时地找出引起电能质量恶化的原因,进一步提出解决电能质量问题的整改方案,为有关部门采取有效措施隔离或降低电能质量恶化的危害提供决策支持,因此需要对电能质量进行科学的评估 ...
陈栩
core
实时地监测电能质量的各个参数对电力系统有着重要意义。本文介绍了基于fPgA的一种电能质量分析仪的设计与实现,它的特色在于能够实时的监测每个周期的电能质量参数。首先讲述了使用fPgA进行信号处理的优越性,其次介绍了电能质量分析仪的硬件设计并且讲述了电能信号与数据的处理流程 ...
林沐晖, 陆达
core
High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries
ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li +5 more
wiley +1 more source
Design and Development of Power Quality Online Monitoring and Analysis System [PDF]
介绍了电能质量相关的各种指标及电能质量监测的背景及现状,提出一种基于.nET平台上电能质量在线监测分析系统的设计方案。使用C#和SQl SErVEr 2005对电能质量监测设备数据的提取、解码和存储,实现电能质量的评估、报表的生成等功能。Introduces various indicators of power quality and the background and current situation of power quality monitoring,proposed a design ...
罗德华, 陆达
core
ABSTRACT The dual challenges of environmental sustainability and rising energy needs underscore the necessity for high‐energy‐density batteries, making lithium–sulfur (LSB) systems with their high theoretical capacity highly attractive. However, the polysulfide shuttle, coupled with inherent kinetic limitations in the sulfur reduction reaction ...
Bingbo Ni +4 more
wiley +1 more source
Design of Baosteel Fivecold-Rolled Factory’s Power Quality Inspection System [PDF]
随着非线性负荷及冲击性负荷的增加,电能质量严重超标,正在大范围地污染供电环境,危及电网及其供电设备的安全稳定运行,降低电力企业的经济效益,因此有必要对电能质量进行实时在线监测,及时了解电网电能质量水平,以便采取措施改善﹑提高供电质量。作者设计了宝钢五冷轧厂电能质量监测系统,针对目前存在的高次谐波问题,对电能质量参数进行长期监测和分析,文章着重介绍了该系统的原理﹑结构 ...
姚铭, 李永萍, 缪顺斌
core
ABSTRACT Engineering the semiconductor/dielectric interface is crucial for advancing two‐dimensional (2D) nanoelectronics, where device performance is predominantly governed by interfacial defects and dielectric coupling. Optoelectronic doping based on carrier trapping at the h‐BN/SiO2 interface has enabled non‐volatile and reversible carrier ...
Zhe Zhang +6 more
wiley +1 more source

