Journal of Electrochemical Energy Conversion and Storage最新文献_第6页

Effect of SiO2 coating on microstructure and electrochemical properties of LiNi0.5Mn1.5O4 cathode material SiO2涂层对LiNi0.5Mn1.5O4正极材料微观结构和电化学性能的影响

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-03-20 DOI: 10.1115/1.4062161

Jinjing Du, Y. Guo, Meng Zhou, Ya-ru Cui, Bin Wang, Qian Li, Jun Zhu, Dandan Zhao

{"title":"Effect of SiO2 coating on microstructure and electrochemical properties of LiNi0.5Mn1.5O4 cathode material","authors":"Jinjing Du, Y. Guo, Meng Zhou, Ya-ru Cui, Bin Wang, Qian Li, Jun Zhu, Dandan Zhao","doi":"10.1115/1.4062161","DOIUrl":"https://doi.org/10.1115/1.4062161","url":null,"abstract":"We present a simple method for producing SiO2 modified LNMO cathode materials. Manganese carbonate was directly mixed with nickel nitrate and lithium hydroxide, and a spherical structure LNMO cathode material was prepared by two-step calcination, then ethyl orthosilicate and LNMO powder were simply mixed in solid and liquid phase to prepare SiO2-coated LNMO material. The effect of SiO2 coating on the structure of LNMO was studied by XRD, SEM, TEM, TG-DSC. An amorphous SiO2 coating layer developed on the surface of the LNMO particles in the modification, and this could alleviate the strike of HF caused by electrolyte decomposition as well as the development of a solid electrolyte interphase. The electrochemical performance of the coated material was as follows: when the amount of SiO2 was 0wt%, 1wt%, 2wt% and 3wt%, the initial discharge capacity of the sample was 98.2, 84.1, 101.3 and 89.8mAh·g−1, respectively. After 50 charge-discharge cycles, the capacity retention rates are 92.7%, 66.8%, 97.9% and 93.8%, respectively. The cyclic stability of the samples can be significantly improved when the SiO2 coating amount is 2wt% and 3wt%, indicating that SiO2 coating can not only improve the discharge specific capacity of the material, but also improve its cyclic stability.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47448738","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

Modified Silicon Anode for Improved Low Temperature Performance of Lithium-ion Batteries 改善锂离子电池低温性能的改性硅阳极

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-03-20 DOI: 10.1115/1.4062163

Jason A. Mennel, D. Chidambaram

引用次数: 0

Effect of Liquid Cooling Structure of Confluence Channel on Thermal Performance of Lithium-Ion Batteries 汇流通道液冷结构对锂离子电池热性能的影响

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-03-08 DOI: 10.1115/1.4062080

Hengjie Shen, Minghai Li, Yan Wang, Hewu Wang, Xuning Feng, Juan Wang

{"title":"Effect of Liquid Cooling Structure of Confluence Channel on Thermal Performance of Lithium-Ion Batteries","authors":"Hengjie Shen, Minghai Li, Yan Wang, Hewu Wang, Xuning Feng, Juan Wang","doi":"10.1115/1.4062080","DOIUrl":"https://doi.org/10.1115/1.4062080","url":null,"abstract":"\u0000 In this study, based on the liquid cooling method, A confluence channel structure is proposed, and the heat generation model in the discharge process of three-dimensional battery module is established. The effects of channel structure, inlet mass flow rate and coolant flow direction on the heat generation of battery module were studied by control variable method. Simulation results show that the confluence channel structure ( e ) shows good cooling effect on the battery temperature when controlling the 5 C discharge of the battery module. In addition, compared with the straight channel under the same working condition. In the discharge process of battery module, Average temperature amplitude in battery module decreased by 17.3 %, the inlet and outlet pressure is reduced by 16.47 %, and the maximum temperature amplitude is reduced by 20.3 %. Effectively improve temperature uniformity and reduce pressure drop. The problem of uneven temperature distribution caused by uneven velocity distribution of coolant in traditional straight channel is improved. At the same time, the design of the confluence structure accelerates the heat transfer of the channel plate and provides a new idea for the design of the cooling channel.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45048777","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

Improved Performance of Silicon Anodes Using Copper Nanoparticles as Additive 纳米铜添加剂对硅阳极性能的改善

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-03-01 DOI: 10.1115/1.4056841

Gabrielle Bachand, Jason Mennel, Dev Chidambaram

引用次数: 1

Optimization on composition and structure of catalyst layer for high-temperature polymer electrolyte membrane fuel cells 高温聚合物电解质膜燃料电池催化剂层组成及结构优化

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-02-24 DOI: 10.1115/1.4056990

Meihui Tan, Huiyuan Liu, Huaneng Su, Weiqi Zhang

{"title":"Optimization on composition and structure of catalyst layer for high-temperature polymer electrolyte membrane fuel cells","authors":"Meihui Tan, Huiyuan Liu, Huaneng Su, Weiqi Zhang","doi":"10.1115/1.4056990","DOIUrl":"https://doi.org/10.1115/1.4056990","url":null,"abstract":"\u0000 High-temperature polymer membrane fuel cells (HT-PEMFCs) are considered as the trend of PEMFC future development due to their accelerated electrochemical reaction kinetics, simplified water/thermal management, and improved tolerance to impurities (CO). As the core part of membrane electrode assembly in HT-PEMFC, the catalyst layer significantly affects the cost, performance, and lifetime of HT-PEMFC. However, due to the high temperature and acid environment in HT-PEMFC, platinum (Pt) catalyst degradation and carbon corrosion are accelerated. Moreover, the loss of phosphoric acid (PA) which serves as the proton conductor is observed after long-term operation. In addition, the adsorption of phosphate on Pt surface leads to the poor Pt utilization. Thus, high cost and fast performance decay must be addressed for the commercialization of HT-PEMFC. Optimizing the composition and structure of catalyst layer are demonstrated as effective strategies to resolve the problems. In this review, we first summarize the latest progress in the optimization of catalyst layer composition for HT-PEMFC, including catalysts, binders, electrolyte (PA), and additives. Thereafter, the structural characteristics of catalyst layer are introduced and the optimization strategies are reviewed. Finally, the current challenges and research perspectives of catalyst layer in HT-PEMFC are discussed.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45501066","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

Fuzzy logic control-based charge/discharge equalization method for lithium-ion batteries 基于模糊逻辑控制的锂离子电池充放电均衡方法

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-02-23 DOI: 10.1115/1.4056989

Tiezhou Wu, Feng Xu, Si Xu, Shu Sun

{"title":"Fuzzy logic control-based charge/discharge equalization method for lithium-ion batteries","authors":"Tiezhou Wu, Feng Xu, Si Xu, Shu Sun","doi":"10.1115/1.4056989","DOIUrl":"https://doi.org/10.1115/1.4056989","url":null,"abstract":"\u0000 In this paper, a grouping equalization circuit based on the Single Ended Primary Inductor Converter (SEPIC) circuit is proposed, which can transfer energy between any single cell or grouped cells. Compared with the traditional equalization circuits that transfer energy between adjacent cells, the SEPIC circuit can directly connect any two batteries that need to be equalized; the number of circuit equalization paths is calculated based on a directed graph, then used as a basis for grouping the batteries to improve the equalization efficiency. In the charging or discharging condition, the amount of charge remaining in the battery to be charged or discharged is used as the control variable for equalization, and intra-group equalization is completed before inter-group equalization starts. To ensure the equalization efficiency of the battery, the equalization current is controlled by fuzzy logic control (FLC). Taking 10 single cells as an example based on the calculation of the number of equalization paths, two 5-cell groups can be confirmed as the optimal solution. Experiments were performed on Matlab/Simulink simulation platform, and the results show that compared with the traditional adjacent inductance equalization circuit, the equalization circuit proposed above reduces the time needed for equalization by 35.8%; Compared with the traditional average difference method, in charging and discharging conditions, the FLC algorithm saves times by 20.5% and 31.3% respectively, and energy loss is reduced by 9.1% and 5.5% respectively, which verifies the feasibility of the proposed equalization scheme.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47313242","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

Incorporation of Novel Graphene Nanosheet Materials as Cathode Catalysts in Li-O2 Battery 新型石墨烯纳米片材料作为正极催化剂在锂离子电池中的应用

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-02-17 DOI: 10.1115/1.4056937

S. Zaidi, Shusil Sigdel, C. Sorensen, Gibum Kwon, Xiangling Li

引用次数: 3

Dynamic Crushing Behaviors of Cylindrical Lithium-Ion Battery Under Multiple Impacts: An Experimental Study 多重冲击下圆柱形锂离子电池动态破碎行为的实验研究

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-02-09 DOI: 10.1115/1.4056885

Xin-chun Zhang, Nan-nan Liu, Sijie Dong, Zhang Tao, Xiaodi Yin, T. Ci, Hexiang Wu

{"title":"Dynamic Crushing Behaviors of Cylindrical Lithium-Ion Battery Under Multiple Impacts: An Experimental Study","authors":"Xin-chun Zhang, Nan-nan Liu, Sijie Dong, Zhang Tao, Xiaodi Yin, T. Ci, Hexiang Wu","doi":"10.1115/1.4056885","DOIUrl":"https://doi.org/10.1115/1.4056885","url":null,"abstract":"\u0000 To understand the dynamic failure mechanisms of cylindrical lithium-ion battery (LIB) under different impact loadings, the crushing behaviors of the 18650 LIBs were experimentally investigated in this work. The drop weight impact tests with different impactor heads were conducted to analyze the crushing responses of the LIBs. By changing the state of charge (SOC) of the battery, impactor types and impact energy, the force-electric responses of a LIB under multiple impacts were explored. Macro- and micro- deformation of the batteries were further exployed including SOC dependency and the failure modes of the separator. Results show that except for impact energy, the mechanical responses and failure behaviors of the LIBs under the repeated impacts also depended upon the SOC and impactor shapes. The relationship between impact velocity and minimum impact times was established when a hard internal short circuit (ISC) appeared to evaluate the dynamic safety of the LIBs. These results can provide guidance for the crashworthiness design and safety assessment of the batteries under multiple impacts.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"1 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63503866","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

Synthesis of Proton Conducting and Highly Stable PWA-ZRP Doped Composite Membrane for PEM Fuel Cell 质子导电、高稳定PWA-ZRP掺杂PEM燃料电池复合膜的合成

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-01-19 DOI: 10.1115/1.4056710

Jay Pandey, M. Seepana

引用次数: 0

Physicochemical Properties of N,N-Diethylethanolammonium Chloride/Ethylene Glycol based DES for Replacement of Ionic Liquid N，N-二乙基乙醇氯化铵/乙二醇基DES替代离子液体的理化性质

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-01-10 DOI: 10.1115/1.4056638

Roslinda Fauzi, R. Daik, Basirah Fauzi, S. N. L. Mamauod

{"title":"Physicochemical Properties of N,N-Diethylethanolammonium Chloride/Ethylene Glycol based DES for Replacement of Ionic Liquid","authors":"Roslinda Fauzi, R. Daik, Basirah Fauzi, S. N. L. Mamauod","doi":"10.1115/1.4056638","DOIUrl":"https://doi.org/10.1115/1.4056638","url":null,"abstract":"\u0000 Ionic Liquids (ILs) that are used in the market nowadays have high complexity of processing, high viscosity and high toxicity in comparison to deep eutectic solvent (DES). Deep eutectic solvent is typically used in thermal energy storage, separation and extraction process or electrochemistry field. This study focuses on determining the physicochemical properties of DES, which are thermal conductivity, viscosity, and surface tension. Deep Eutectic Solvent was prepared by mixing hydrogen bond donor (HBD) compounds (ethylene glycol) and hydrogen bond acceptor (HBA) compounds (N,N-Diethylethanolammonium chloride) at different molar compositions. The data shows that the molar ratio HBA:HBD of 1:2 resulted in optimized values of thermal conductivity (0.218 W/mK), low viscosity (38.1 cP) and high surface tension (54 mN/m). Most notably, DES is capable of sustaining in a liquid phase at ambient condition (25°C) for more than 30 days. FTIR spectrum did not indicate any presence of a new peak. This established that only delocalization of ions occurred, and hence chemical transformations did not take place during mixing. The data obtained showed that the new synthesized solvent (DES) possess better result than the ILs. Therefore, DES can be proposed to replace the dependency to ILs.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44088274","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