Results 51 to 60 of about 8,369 (224)

Construction of CoP/Mn2P Heterojunctions via One‐Step Phosphorization Coupled With Hollow Hard Carbon Spheres as Supports: Enabling Ultrastable Long‐Cycle Sodium‐Ion Anodes Over a Wide Temperature Range

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Driven by global energy transition and sustainability, sodium‐ion batteries (SIBs) have emerged as key alternatives to lithium‐ion batteries for low‐to‐medium energy storage, because of abundant sodium resources and low cost. However, their commercialization is hindered by the lack of anodes with high capacity, fast kinetics, and long‐term ...
Shuang‐Lin Cai   +13 more
wiley   +1 more source

风电场参与电网一次调频最优方案选择与风储协调控制策略研究 [PDF]

open access: yes全球能源互联网, 2019
研究了大型风电场联合集中式储能系统参与电网一次调频的可行性与经济性,并提出一种风储联合调频控制策略。统计分析了正常运行与发生功率缺额事件下实际电网的频率特性,仿真验证了新能源机组参与电网一次调频的必要性;类比火电机组一次调频原理,提出了新能源机组参与一次调频的基本条件;分析了风电机组基于转子惯量、预留备用和配置储能3种调频方案的技术经济性,指出风电场装配集中式储能以承担一次调频是更为经济有效的调频方案。旨在充分利用风机转子惯量以减少配置储能容量,提出一种风储协调的调频控制策略,有效减少储能容量。
刘辉   +4 more
doaj   +1 more source

Control strategy research for PV DC microgrid with hybrid storage system [PDF]

open access: yes, 2016
以光伏、风电等可再生能源为主的分布式发电技术因为其随机性、不稳定性,对配电网潮流改变带来的安全性等问题,其发展得到一定的制约。微电网被广泛认为是解决分布式发电技术应用瓶颈的有效解决方案,而直流微电网以直流形式传输电能,控制结构简单,不需考虑频率和相位,系统损耗小,效率高,也更加适合越来越多的直流电器的接入,因此具有很强的推广实用价值。本文在研究了直流微电网的国内外研究发展现状、架构,以及包括控制技术、储能技术、保护技术等关键技术基础上,对包含有蓄电池和超级电容器在内的光伏直流微电网系统进行了研究 ...
杨贇
core  

A Review on Cu‐Based Catalysts for Dehydrogenation of Chemical Hydrides

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Hydrogen (H2) plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable, clean, and pollution‐free. Nevertheless, the secure and effective production‐storage‐transportation of H2 presents critical challenges.
Yixing Luo   +6 more
wiley   +1 more source

面向并联环流最小化的垂直式矩阵型重力储能系统多机协调控制 [PDF]

open access: yes全球能源互联网
重力储能利用高度落差对固体重物储能介质进行升降,实现储能系统的充放电。和抽水蓄能相比,由于其具有不依赖水资源、选址灵活等特点,应用前景广泛。为提高重力储能系统的充放电运行效率,研究了面向多机并联功率环流最小化的垂直式矩阵型重力储能系统多机协调控制问题。首先,基于PSCAD/EMTDC构建垂直式矩阵型重力储能系统模型,分析了其充放电特性;其次,通过对重力储能系统多机并联运行时产生的机组间功率环流机理及抑制问题进行分析,提出了基于重力储能系统双层控制架构的多个机组间协调控制方法 ...
翟文超   +6 more
doaj   +1 more source

Achieving Ambient‐Temperature Fast Hydrogenation Properties in Ga‐Doped Mg–Ni Alloy: Dual‐Phase Synergistic Catalysis and Stacking Fault Channels

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The high operating temperatures and sluggish kinetics of Mg‐based hydrogen storage materials (HSMs) are urgently being addressed. In this work, a novel Mg–Ni–Ga HSM with dual‐phase synergistic catalysis is developed, including the fishbone‐like Mg3Ni2Ga1 catalytic phase and the Mg2Ni phase with stacking faults (SFs).
Shiyang Hu   +7 more
wiley   +1 more source

Theoretical calculation of cathode catalyst and electrolyte in lithium air battery [PDF]

open access: yes, 2016
随着电动汽车的快速发展,寻找和开发具有高能量密度的新型锂二次电池显得至关重要,锂空气电池是目前研究最为活跃的体系之一。采用量子化学为主的理论方法,有助于深入认识和理解锂空气电池电化学界面的一些关键科学问题。本文从理论计算的角度出发,开展对于锂空气电池的正极催化剂材料及电解液等关键组件的研究。主要研究内容如下: 1.MnO晶体的(100)、(111)-Mn和(111)-O晶面对锂空气电池充放电过电势影响的机理研究。 在N掺杂石墨烯(NG)表面上均匀生长MnO晶体,该复合材料表现出了优异的OER催化性能 ...
雷鸣
core  

Synergistic Regulation of Na+ Solvation Structure and Interfacial Chemistry Enabled by a Bifunctional Sultone Additive for High‐Voltage Sodium Metal Batteries

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Sodium metal batteries (SMBs) are regarded as promising candidates for next‐generation energy storage systems owing to their high theoretical energy density and low cost. However, their practical development is hindered by the instability of the electrode–electrolyte interphase (EEI), particularly under high‐voltage operation.
Xingyu Yang   +10 more
wiley   +1 more source

分布式发电中的储能技术

open access: yesGaoya dianqi, 2003
简要介绍了分布式发电的现状,分析了储能在分布式发电中的作用。着重介绍了蓄电池储能、超导储能、超级电容器储能以及飞轮储能等储能形式,并分析了它们的技术现状及优缺点。
程华, 徐政
doaj  

The Synthesis and Electrochemical Performance of Manganese-Based Materials [PDF]

open access: yes, 2015
锰氧化物储量丰富、价格低廉、环境友好,做超级电容器电极材料及锂离子 电池负极材料有高的理论比容量,近来成为研究热点之一。但锰氧化物存在电子 电导率低、离子导电性差的缺陷,其实际容量与理论容量差距较大。另外,在锂 离子电池中,基于转换反应的锰氧化物充放电过程存在较大的体积变化,容易造 成循环容量的衰减。纳米化与制备锰氧化物与碳材料的复合物是有效的改进方 法。本文通过回流法、溶剂热及分散煅烧的方法分别制备了Mn3O4与还原氧化 石墨烯(RGO)、MnO与RGO、MnO与石墨烯及MnO与其他碳材料的复合材料 ...
杨姗姗
core  

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