检索结果-南通市图书馆

Recent Advances on Boosting the cell voltage of Aqueous Supercapacitors

Nano-Micro Letters 2020年第8期12卷 60-81页

作者： Qianzhi Gou Shuang Zhao Jiacheng Wang Meng Li Junmin Xue MOE Key Laboratory of Low-Grade Energy Utilization Technologies and Systems CQU-NUS Renewable Energy Materials and Devices Joint LaboratorySchool of Energy and Power EngineeringChongqing UniversityChongqing 400044People’s Republic of China Department of Materials Science and Engineering CQU-NUS Renewable Energy Materials and Devices Joint LaboratoryNational University of SingaporeSingapore 117573Singapore

Due to its ultra-fast charge/discharge rate,long cyclic life span,and environmental benignity,aqueous supercapacitor(SC)is considered as a proper nextgeneration energy storage ***,limited by undesirable water electrolysis and unreasonable electrode potential range,aqueous SC normally generates a narrow cell voltage,resulting in a low energy *** address such challenge,enormous efforts have been made to construct high-voltage aqueous *** these achievements,the systematic reviews about this field are still *** fill this knowledge gap,this review summarizes the recent advances about boosting the cell voltage of aqueous *** the viewpoint of electrode,doping alkali cations,modulating the electrode mass ratio,and optimizing the surface charge density are regarded as three effective pathways to achieve this ***,adjusting the appropriate pH level,introducing redox mediators,and constructing“water-in-salt”electrolyte are other three universal routes from the electrolyte ***,it is also effective to obtain the high-voltage aqueous SCs through asymmetric design,such as designing asymmetric *** confronting challenges and future development tendency towards the high-voltage aqueous SCs are further discussed.

关键词： Aqueous supercapacitors cell voltage Electrodes Electrolytes Asymmetric design

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of gas bubble on cell voltage oscillations based on equivalent circuit simulation in aluminum electrolysis cell

引用

Transactions of Nonferrous Metals Society of China 2015年第1期25卷 335-344页

作者：王永良铁军涂赣峰孙树臣赵仁涛张志芳东北大学材料与冶金学院沈阳110819 北方工业大学机械与材料工程学院北京100144

A method to investigate the effect of gas bubble on cell voltage oscillations was established. The whole aluminum electrolysis cell was treated as a resistance circuit, and the dynamic simulation of the cell equivalent circuit was modeled with Matlab/Simulink simulation software. The time-series signals of cell voltage and anode current were obtained under different bubble conditions, and analyzed by spectral and statistical analysis methods. The simulation results show that higher bubble release frequency has a significant effect on the cell voltage oscillations. When the bubble coverage of one anode block exceeds 80%, the cell voltage may exceed its normal fluctuation amplitude. The simulation also proves that the anode effect detected by computer in actual production is mainly the whole cell anode effect.

关键词： aluminum electrolysis equivalent circuit gas bubble cell voltage anode effect

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A ALO-LSSVM Model for the cell voltage Optimization in Aluminum Electrolysis Process

A ALO-LSSVM Model for the Cell Voltage Optimization in Alumi...

引用

第三十九届中国控制会议

作者： Chen-hua Xu Jin-zhi Zhang Ruo-jun Cheng Rui Chen Zhu-guang Luo Hao-ran Li Department of Electrical Engineering Guangxi University

The aluminum reduction is a typical industry with high-energy consumption,and one of the ways to effectively solve the problem of high energy consumption is to reduce the cell voltage in a proper *** is hard to express the relationship between the cell voltage and the corresponding technical *** present,data mining technology highly automated analysis of enterprise data is usually used to find the optimal cell voltage and its corresponding optimal technical *** order to improve the accuracy of the model,the method of density-based spatial clustering of applications with noise(DBSCAN)is adopted to remove the abnormal operating points from the raw ***,in order to realize the real-time measurement of cell voltage,the prediction model of cell voltage is established by least squares support vector machine(LSSVM),and optimized by Ant Lion Optimizer(ALO).Additionally,the cell voltage optimization control model is developed by analysis of the technical *** cell voltage optimization control model is solved by using the ALO *** simulation results reveal that the adoption of ALO-LSSVM model significantly improves the robustness and accuracy of the cell voltage prediction,and it provides a powerful technical preparation for optimizing cell *** experimental effect shows that the ALO model is stable,and the average value of cell voltage optimization is 3.8647 *** is used to guide process operation,and the theoretical DC power consumption is 14.9% lower than before optimization,achieving energy saving.

关键词： Aluminum Electrolysis Process Cluster Analysis cell voltage LSSVM ALO

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Influence of nano-CeO_2 on coating structure and properties of electrodeposited Al/α-PbO_2/β-PbO_2

引用

Transactions of Nonferrous Metals Society of China 2013年第5期23卷 1382-1389页

作者：陈阵余强廖登辉郭忠诚武剑昆明理工大学理学院昆明650093 昆明理工大学冶金与能源工程学院昆明650093

Al/α-PbO2/β-PbO2 composite electrodes doped with rare earth oxide （CeO2） were prepared by anodic oxidation method investigate the influence of nano-CeO2 dopants on the properties of Al/α-PbO2/β-PbO2-CeO2 electrodes and the impact of α-PbO2 as the intermediate layer. The results show that using α-PbO2 as the intermediate layer will benefit the crystallization of β-PbO2 and β-PbO2 is more suitable as the surface layer than α-PbO2. CeO2 dopants change the crystallite size and crystal structure, enhance the catalytic activity, and even change the deposition mechanism of PbO2. The doping of CeO2 in the PbO2 electrodes can enhance the electro-catalytic activity, which is helpful for oxygen evolution, and therefore reduce the cell voltage.

关键词： rare earth CeO2 composite electrode material α-PbO2 β-PbO2 cell voltage inert anode

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：