Journal of Electrochemical Energy Conversion and Storage最新文献_第9页

Aging effect-aware finite element model and parameter identification method of Lithium-ion battery 锂离子电池老化效应感知有限元模型及参数辨识方法

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-09-02 DOI: 10.1115/1.4055463

Aina Tian, Chen Yang, Yang Gao, Yan Jiang, C. Chang, Lujun Wang, Jiuchun Jiang

{"title":"Aging effect-aware finite element model and parameter identification method of Lithium-ion battery","authors":"Aina Tian, Chen Yang, Yang Gao, Yan Jiang, C. Chang, Lujun Wang, Jiuchun Jiang","doi":"10.1115/1.4055463","DOIUrl":"https://doi.org/10.1115/1.4055463","url":null,"abstract":"\u0000 Battery aging is an inevitable macroscopic phenomenon in the use of the battery, which is characterized by capacity decline and power reduction. If the charging and discharging strategy does not adjusted with the aging state, it is easy to cause battery abuse and accelerate the decline. In order to avoid this situation, the aging model with consideration of the battery degradation is coupled into the pseudo-two-dimensional (P2D) model. An aging effect-aware finite element model that can describe battery physical information accurately is presented in this paper. The model parameters are divided into four parts: structure parameters, thermodynamic parameters, kinetic parameters and aging parameters. The identification experiments are designed based on the characteristics of these types of parameters. The decoupling and parameter identification methods of kinetic parameters according to the response characteristics of each parameter under specific excitation, and state of charge (SOC) partitioned range identification technology of aging parameters are proposed and verified. Finally, the aging effect-aware model and the identification parameters are verified under constant current (CC) and different dynamic conditions with different charge rate (C-rate). And the ability of the proposed model to track the aging trajectory in the whole life cycle is verified under various cycle conditions. The proposed model can be applied to aging mechanism analysis and health management from point of inner properties of the batteries.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"1 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63503807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Situ Grown CoMn-Based Metal-Organic Framework on Nickel Foam as Efficient and Robust Electrodes for Electrochemical Oxygen Evolution Reaction 泡沫镍上原位生长的CoMn基金属有机骨架作为电化学析氧反应的高效和稳健电极

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-09-02 DOI: 10.1115/1.4055462

L. Hua, H. Fei, Linjie Zheng, Du Zhengyao, Tang Kewen

引用次数: 0

A Review of Dispersion Film Drying Research 分散膜干燥研究综述

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-08-29 DOI: 10.1115/1.4055392

Buyi Zhang, Bei Fan, Zhi Huang, Kenneth Higa, V. Battaglia, R. Prasher

{"title":"A Review of Dispersion Film Drying Research","authors":"Buyi Zhang, Bei Fan, Zhi Huang, Kenneth Higa, V. Battaglia, R. Prasher","doi":"10.1115/1.4055392","DOIUrl":"https://doi.org/10.1115/1.4055392","url":null,"abstract":"\u0000 Dispersion drying is an essential step in an enormous number of research and industry fields, including self-assembly, membrane fabrication, printing, battery electrode fabrication, painting, and large-scale solar cell fabrication. The drying process of a dispersion directly influences the structure and properties of the resulting dried film. Thus, it is important to investigate the underlying physics of dispersion drying and the effects of different drying parameters. This article reviews modeling studies of coating drying processes, along with corresponding experimental observations. We have divided drying processes into two conceptual stages. In the first drying stage, liquid evaporation, particle sedimentation and Brownian motion compete and affect the particle distribution during drying and thus in the final film structure. We have included a comprehensive discussion of the influences of drying parameters, such as evaporation rate, particle sizes and temperature, on the above competition and the resulting film structure. A drying regime map describing where different drying phenomena dominate was formulated based on the literature. We also extended our discussion to the practical applications of battery slurry drying an essential step in conventional battery electrode manufacturing. In the second drying stage, the physics of porous drying and crack formation are reviewed. This review aims to provide a comprehensive understanding of dispersion drying mechanisms and to provide guidance in the design of film products with favorable structures and properties for targeted practical applications.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47306733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Influence of off gas recirculation on the intermediate temperature SOFC with POX reformer 烟气再循环对POX重整炉中温SOFC的影响

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-08-29 DOI: 10.1115/1.4055393

Siyuan Li, Zhe Zhang, Guo-xiang Li, Shuzhan Bai

{"title":"Influence of off gas recirculation on the intermediate temperature SOFC with POX reformer","authors":"Siyuan Li, Zhe Zhang, Guo-xiang Li, Shuzhan Bai","doi":"10.1115/1.4055393","DOIUrl":"https://doi.org/10.1115/1.4055393","url":null,"abstract":"\u0000 Solid oxide fuel cell(SOFC) is a clean and efficient energy utilization technology. Partial oxidation reforming(POX) can be used to simplify SOFC system structure, but its lower hydrogen production rate deteriorates system performance. A wise method may be combining anode off gas recirculation(AOGR) and cathode off gas recirculation(COGR) with POX. Thus, their influence on the coupled system of intermediate temperature SOFC and POX is researched in detail in this paper. Results show that the reforming process gradually changes from exothermic to endothermic as AOGR rate increases. Meanwhile, its oxygen demand declines sharply and the process can even be self-sustained without external air input at the AOGR rate of 0.5 and 0.6. The application of AOGR can improve electrical efficiency up to 51%, but at the expense of thermal efficiency. Excessive AOGR rates will result in decreased cell voltage and insufficient energy supply to the after-burner, so it should be restricted within a reasonable range and the best recommended value is 0.5. The application of COGR has little effect on fuel line parameters, so it cause little deterioration in electrical efficiency while improving thermal efficiency. Besides, cell voltage is also insensitive to it. The combination of AOGR and COGR can obtain better fuel economy and larger cogeneration scale simultaneously at the cost of a tiny electrical output power, while an optimal balance between three efficiencies is also achieved.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41998426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Preparation of SiC-coated silicon nanofiber/graphite composites as anode material for Li-ion batteries by CVD method CVD法制备sic包覆硅纳米纤维/石墨复合材料作为锂离子电池负极材料

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-08-23 DOI: 10.1115/1.4055312

Mingqi Liu, Bei Liu, Rui Zhang, Zhiyong Xie, Peng Huang, Jiali Zhang

{"title":"Preparation of SiC-coated silicon nanofiber/graphite composites as anode material for Li-ion batteries by CVD method","authors":"Mingqi Liu, Bei Liu, Rui Zhang, Zhiyong Xie, Peng Huang, Jiali Zhang","doi":"10.1115/1.4055312","DOIUrl":"https://doi.org/10.1115/1.4055312","url":null,"abstract":"\u0000 Si material has a huge lithium storage capacity, but its huge volume change during charging and discharging makes it difficult to use. However, by nano-sizing Si material and building a coating structure, it can effectively reduce the capacity reduction caused by the expansion of Si material. In our experiment, dichlorodimethylsilane was used as the silicon source and carbon source for the deposition of silicon nanofibres and SiC-coated on a spherical graphite substrate, and then the SiC cladding was deposited without changing the temperature and silicon source, and only the C to H ratio in the atmosphere was controlled to build cladding layer. Simultaneous preparation of SiC@Si/G composites with silicon nanofibers and cladding structures by a single CVD process and single raw materials. The material has a silicon nanofiber structure and SiC coating structure. The presence of silicon is effective in providing very high capacity and the presence of the SiC layer is effective in improving the capacity retention of the composite material on the premise of increasing the Coulomb efficiency of the material. At a current density of 100 mAh g−1, the material has a reversible capacity of 647.3 mAh g−1 at first cycle. After 100 cycles, it has a 76.2 % retention rate. The electrodes can be extremely stable after cycling without significant swelling.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2022-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44289647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Refrigerant flow distribution research for battery cooling coupled with cabin comfort based on dual-evaporator heat pump system for electric vehicle acceleration 基于电动汽车加速双蒸发器热泵系统的电池冷却与座舱舒适性制冷剂流量分配研究

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-08-17 DOI: 10.1115/1.4055274

Yan Wang, Hewu Wang, Qingshan Gao, Xiaohang Zhang, Xilong Zhang, Zunmin Liu

引用次数: 4

Three-dimensional Heterogeneous Modeling of a Flexible Lithium-ion Battery Made from Semi-Solid Electrodes 半固体电极柔性锂离子电池的三维非均匀建模

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-08-16 DOI: 10.1115/1.4055222

Waleed Zakri, Hassan Fagehi, Muapper Alhadri, A. Abutaleb, Siamak Farhad

{"title":"Three-dimensional Heterogeneous Modeling of a Flexible Lithium-ion Battery Made from Semi-Solid Electrodes","authors":"Waleed Zakri, Hassan Fagehi, Muapper Alhadri, A. Abutaleb, Siamak Farhad","doi":"10.1115/1.4055222","DOIUrl":"https://doi.org/10.1115/1.4055222","url":null,"abstract":"\u0000 Flexible lithium-ion batteries (LIBs) have a strong oncoming consumer market demand for use in wearable electronic devices, flexible smart electronics, roll-up displays, electronic shelf labels, active radio-frequency identification tags, implantable medical devices, and so forth. This market demand necessitates research and development of new flexible LIBs to fulfill the electrical energy and power requirements of these next-generation devices. In this study, we investigate the performance of a new flexible LIB made from semi-solid electrodes. The semi-solid electrodes are made by adding a mixture of electrode active material and conductive material to the organic liquid electrode. This gives a dense and viscous slurry so that all solid particles can move by acting pressure, shear, or bending forces to the battery. To study the performance of this battery we develop a 3D heterogeneous mathematical model that considers all necessary transport phenomena including the charge and mass transfer and electrochemical reactions at the continuum mechanics level on the reconstructed 3D structure of semi-solid electrodes. The finite element analysis (FEA) method was used to solve the governing equations using the COMSOL Multiphysics software package. The model is validated using experimental data for the flexible LIB made in the lab. Based on the developed model, several studies are conducted to understand the effect of the battery discharge rate and the operating temperature on the battery capacity. These studies recommend an operational range for the temperature and discharge rate for this flexible LIB.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2022-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46724144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Macroscopic architecture design of lithium metal electrodes: impacts of millimeter-size hollows on economization, cyclability and utilization 锂金属电极宏观结构设计:毫米尺寸的空心对经济性、可循环性和利用率的影响

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-08-11 DOI: 10.1115/1.4055195

Xiangjie Li, Yanfei Zhao, Yicheng Song, Junqian Zhang, Bo Lu

{"title":"Macroscopic architecture design of lithium metal electrodes: impacts of millimeter-size hollows on economization, cyclability and utilization","authors":"Xiangjie Li, Yanfei Zhao, Yicheng Song, Junqian Zhang, Bo Lu","doi":"10.1115/1.4055195","DOIUrl":"https://doi.org/10.1115/1.4055195","url":null,"abstract":"\u0000 A macroscopic architecture design of lithium metal electrodes for solving the problem of extremely excessive lithium metal is proposed in this paper. By employing a simple mechanical processing method, macroscopic hollows within lithium foils are introduced, and consequently the amount of lithium metal is economized significantly. Cyclability of lithium foils with millimeter-size hollows is evaluated jointly via modeling and experiments. The results suggest that the well-designed macroscopic hollow causes controllable sacrifices of battery cycling performances and considerably boosts the utilization of lithium metal. The relationship of economization, cyclability and utilization of lithium metal is also discussed. The universality of the results is also verified in different battery systems. Meanwhile, the initial hollows are found to heal morphologically after a series of electrochemical cycles, and the existence of lithium metal in the healing product is also confirmed, indicating that hollows provide room for the in-plane lithium dendrite growth. Based on these findings, this work provides a new perspective on the architecture design of lithium metal electrodes.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47474345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Electrochemical evaluation of helical carbon nanofibers prepared by ethanol flame method as anode materials of lithium-ion batteries 乙醇火焰法制备的螺旋碳纳米纤维作为锂离子电池正极材料的电化学评价

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-07-21 DOI: 10.1115/1.4055042

Gang Qu, Wei Zhang, Q. Fu, Zuxiao Yu, Yuping Sheng, J. Chen

{"title":"Electrochemical evaluation of helical carbon nanofibers prepared by ethanol flame method as anode materials of lithium-ion batteries","authors":"Gang Qu, Wei Zhang, Q. Fu, Zuxiao Yu, Yuping Sheng, J. Chen","doi":"10.1115/1.4055042","DOIUrl":"https://doi.org/10.1115/1.4055042","url":null,"abstract":"\u0000 Currently, most of anode materials for lithium-ion batteries (LIBs) suffer from the problems of capacity degradation and reduction of cycle life due to the volume expansion and polarisation. Here we have successfully prepared helical carbon nanofibers (HCNFs) by a simple ethanol flame method (EFM) and tested their electrochemical performance as anode materials for LIBs. The results show that HCNFs possess high reversible capacity (specific capacity of 622.9 mAh·g−1 at a current density of 50 mA·g−1), good rate performance and excellent cycling stability (specific capacity of 395.6 mAh·g−1 after 100 cycles at a current density of 200 mA·g−1, coulombic efficiency of over 98 % and capacity retention of 94.41 %). HCNFs possess unique helical structure, which provide a strong support space for the intercalation/deintercalation in LIBs, and effectively alleviate the volume expansion and polarisation of the anode material. What's more, HCNFs exhibit excellent electrical conductivity and chemical stability. The facile preparation route and superior properties of HCNFs make it potential anode materials for LIBs.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48313151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effective diffusivity from analytical solution for banks of cylinders 圆柱组解析解的有效扩散系数

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2022-07-21 DOI: 10.1115/1.4055044

S. Beale

{"title":"Effective diffusivity from analytical solution for banks of cylinders","authors":"S. Beale","doi":"10.1115/1.4055044","DOIUrl":"https://doi.org/10.1115/1.4055044","url":null,"abstract":"\u0000 Benchmarks are provided for the evaluation of the effective coefficient for species diffusion, or electrical/thermal conduction, in structured porous media. The cases considered correspond to doubly-periodic rows of circular cylinders, for which a power series solution has been previously obtained, from complex variable theory. Both inline and staggered geometries are considered for three common configurations; inline square, rotated square, and equilateral geometries. From these mathematical solutions, values for the effective conduction/diffusion coefficient are readily constructed. The results are presented in terms of correlations for the ratio of effective-to-bulk conductivity/diffusivity, or microstructural parameter, as a function of porosity. It is shown that near identical results with the present analytical analysis are obtained using calculations based on a finite volume method, and also with a previous mathematical analysis for the case of inline square geometry. The present analytical solutions are also compared with two well-known correlations for random porous media, based on effective-medium and percolation theory. It is shown that agreement with the analytical solution, is not in general particularly good, and depends on the choice of parameters. The present results may be used as canonical data for comparative studies with numerical procedures used to enumerate microstructural parameters for arbitrary-shaped occlusions in random geometries.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47457814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0