Journal of Electrochemical Energy Conversion and Storage最新文献

Preparation of Polyvinylidene Chloride Composite Separator with Flame Retardant Properties 具有阻燃性能的聚偏二氯乙烯复合分离器的制备

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2025-09-22 DOI: 10.1115/1.4069917

Lei Chen, M.H. Pu, Chunyan Han, Wenjie Zhang, Yujing Nie

{"title":"Preparation of Polyvinylidene Chloride Composite Separator with Flame Retardant Properties","authors":"Lei Chen, M.H. Pu, Chunyan Han, Wenjie Zhang, Yujing Nie","doi":"10.1115/1.4069917","DOIUrl":"https://doi.org/10.1115/1.4069917","url":null,"abstract":"Abstract In commercialized lithium-ion batteries, polyolefin separators are widely used despite their inherent drawbacks, including poor thermal stability and inadequate electrolyte wettability. These issues prevent them from meeting the criteria for safety and rapid charging/discharging performance. Through the application of the solution casting method in air, polyvinylidene chloride (PVDC) is used as the polymer matrix material, and lithium salt is added to prepare a separator that exhibits excellent oxygen-barrier and wetting properties. Moreover, the incorporation of sodium hexafluoroantimonate and triglycidyl isocyanurate promotes the cross-linking of PVDC. As a result, its porosity (up to 65%), liquid absorption (up to 350%), tensile strength, and elongation at break are improved. The resulting composite separator exhibits outstanding flame-retardant properties, including a high thermal shrinkage temperature of 180 °C. The half-cell buckle test reveals that the capacity and cycling performance of LiFePO4 are also significantly enhanced, achieving a high-rate discharge-specific capacity of 140 mAh/g at 5 C. This study offers valuable insights for the development of high-safety lithium-ion battery separators with flame-retardant features.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147900126","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

Preparation of Silicon/Carboxymethylcellulose-Polydopamine/Carbon Nanotube Composite Material and Its Electrochemical Performance as Anode of Lithium-Ion Batteries 硅/羧甲基纤维素-聚多巴胺/碳纳米管复合材料的制备及其作为锂离子电池负极的电化学性能

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2025-07-07 DOI: 10.1115/1.4069103

Lihuan Xu, Longxia Li, Chang Su

{"title":"Preparation of Silicon/Carboxymethylcellulose-Polydopamine/Carbon Nanotube Composite Material and Its Electrochemical Performance as Anode of Lithium-Ion Batteries","authors":"Lihuan Xu, Longxia Li, Chang Su","doi":"10.1115/1.4069103","DOIUrl":"https://doi.org/10.1115/1.4069103","url":null,"abstract":"Abstract Silicon (Si) is a universally acknowledged alternative for next-generation anode material of lithium-ion batteries due to its extremely high theoretical capacity of 4200 mAh/g. However, its practical applications were limited due to relatively lower electrical conductivity and larger volume expansion/contraction. Therein, the silicon/carboxymethylcellulose-polydopamine/carbon nanotube ternary silicon-based composite electrode materials (Si@CMC-PDA@CNT) were successfully prepared by the in situ method. The successful construction of this structure not only enhanced the electronic conductivity but also stabilized the composite electrode material, thereby endowing the electrode material with excellent mechanical properties and electrochemical stability. By optimizing the added carbon nanotubes, the ternary composite material containing 0.025 g of carbon nanotube (Si@CMC-PDA@CNT-2) exhibited optimal performances. It demonstrated a discharge specific capacity of 1540.8 mAh/g in the initial cycle and 1232.6 mAh/g after the 100 cycles under the current density of 0.2 A/g, with an 81.6% of the first coulombic efficiency. Additionally, it displayed the enhanced rate performances, and under current densities of 0.1, 0.2, 0.4, 0.8, and 1 A/g, its discharge specific capacities were 1861.7, 1700.9, 1453.6, 1133.7, and 1009.0 mAh/g, respectively. The charge storage process indicated that the electrochemical process was a diffusion and capacitive co-controlled process.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"22 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147897595","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

Effects of Sintering Temperature on the Electrical Performance of Ce0.8Sm0.2O1.9–Pr2NiO4 Composite Electrolyte for SOFCs 烧结温度对Ce0.8Sm0.2O1.9-Pr2NiO4复合sofc电解液电性能的影响

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-09-10 DOI: 10.1115/1.4066478

Jihai Cheng, Xuhang Zhu, Wenyi Zhang

{"title":"Effects of Sintering Temperature on the Electrical Performance of Ce0.8Sm0.2O1.9–Pr2NiO4 Composite Electrolyte for SOFCs","authors":"Jihai Cheng, Xuhang Zhu, Wenyi Zhang","doi":"10.1115/1.4066478","DOIUrl":"https://doi.org/10.1115/1.4066478","url":null,"abstract":"Abstract Novel composite electrolyte Sm0.2Ce0.8O1.9–Pr2NiO4 (SDC–PNO) for solid oxide fuel cells (SOFCs) was prepared. The effects of sintering temperature on the performance of SDC–PNO composite electrolyte were studied. X-ray diffraction (XRD) analysis confirms that the composite samples sintering at different temperatures contain two pure phases corresponding to SDC and PNO, respectively. It indicates that there is no interfacial reaction between Sm0.2Ce0.8O1.9 and Pr2NiO4, and the composite electrolyte keeps regular grain boundaries after long-term operation. The results of scanning electron microscopy (SEM) show that a dense structure can be formed after sintering at 1250 °C. The electrical properties were tested in air by electrochemical impedance spectroscopy technique in the temperature range of 400–800 °C. Results show that an appropriate increase of the sintering temperature can effectively increase the conductivity of SDC–PNO composite electrolyte, and the maximum conductivity of 0.102 S/cm can be obtained in the sample sintered at 1250 °C and tested at 800 °C. In summary, the electrical conductivity of Sm0.2Ce0.8O1.9 can be significantly increased by adding Pr2NiO4, and SDC–PNO composite electrolyte is a promising electrolyte for solid oxide fuel cells.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"22 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147898734","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

Black-Fe2O3 Polyhedron-Assembled 3D Film Electrode with Enhanced Conductivity and Energy Density for Aqueous Solid-State Energy Storage 黑色-Fe2O3 多面体组装三维薄膜电极具有更强的导电性和能量密度，可用于水体固态储能

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-12-29 DOI: 10.1115/1.4064380

Yi Xing, Xiaoyu Sun, Wentian Chen, Xiaoqing Ma, Zirui Huang, Minglian Li, Wenfeng Guo, Yuqian Fan

{"title":"Black-Fe2O3 Polyhedron-Assembled 3D Film Electrode with Enhanced Conductivity and Energy Density for Aqueous Solid-State Energy Storage","authors":"Yi Xing, Xiaoyu Sun, Wentian Chen, Xiaoqing Ma, Zirui Huang, Minglian Li, Wenfeng Guo, Yuqian Fan","doi":"10.1115/1.4064380","DOIUrl":"https://doi.org/10.1115/1.4064380","url":null,"abstract":"The construction of advanced Fe2O3 materials with high energy density for energy storage faces challenges due to the defects of conventional widely-known red-brown Fe2O3 such as poor electronic conductivity and insufficient physical/chemical stability. Unlike previous work, we successfully synthesize a novel black Fe2O3 (B-Fe2O3) thin film electrode by adopting simple hydrothermal strategy. Physical characterizations indicate that the as-made B-Fe2O3 product is composed of polyhedrons (mainly exhibit 4-8 sides) with a micrometer grade size range. Besides, the Fe-based thin film electrode with this 3D structure has stronger affinity and high electronic conductivity. As anode of aqueous solid-state energy storage devices, the as-synthesized B-Fe2O3 film electrode exhibits excellent volume energy density of 14.349 kWh m−3 at power density of 1609 kW m−3, which is much higher than the best result of previous works (∼8 kWh m−3). This study may provide new insights into the development of the Fe2O3 series on developing high-efficiency Fe-based anode materials for solid-state energy storage.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" 21","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139144153","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

Critical Review of Hydrogen Production via Seawater Electrolysis and Desalination: Evaluating Current Practices 海水电解和脱盐制氢批判性评论：评估当前做法

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-12-29 DOI: 10.1115/1.4064381

Giorgos Varras, Michail Chalaris

{"title":"Critical Review of Hydrogen Production via Seawater Electrolysis and Desalination: Evaluating Current Practices","authors":"Giorgos Varras, Michail Chalaris","doi":"10.1115/1.4064381","DOIUrl":"https://doi.org/10.1115/1.4064381","url":null,"abstract":"The pursuit of sustainable and clean energy solutions has led to increased interest in hydrogen as an efficient energy carrier. This paper presents a comprehensive analysis of state-of-the-art technologies for hydrogen production through seawater electrolysis and desalination, addressing the critical need for clean energy generation and sustainable water supply. It emphasizes the importance of hydrogen as a versatile and environmentally friendly energy source, as well as the significance of seawater desalination. The analysis includes a comparison of three electrolysis technologies: solid oxide electrolysis (SOE), alkaline electrolyzers (AE), and proton exchange membrane (PEM) electrolysis. Factors such as energy requirements, capital and maintenance costs, and offshore suitability are considered, facilitating an informed evaluation of the most suitable electrolysis method for seawater hydrogen production. Additionally, three desalination technologies are evaluated: reverse osmosis (RO), thermal desalination, and membrane desalination. The assessment takes into account investment and operation costs, energy demand, and environmental impact, providing insights into the feasibility and sustainability of integrating hydrogen production with seawater desalination. This condensed review provides a holistic perspective on the techno-economic viability, energy efficiency, and environmental sustainability of various technologies, enabling informed decision-making towards a more sustainable and resilient energy-water nexus. Overall, this study contributes to the growing body of knowledge on hydrogen production and seawater desalination, offering insights that can inform strategic planning, policy development, and technological advancements in achieving a greener and more sustainable future.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"60 4","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139146534","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

Internal temperature estimation of lithium-ion battery based on improved electro-thermal coupling model and ANFIS 基于改进电热耦合模型和 ANFIS 的锂离子电池内部温度估算

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-12-28 DOI: 10.1115/1.4064353

Jianping Wen, Zhensheng Li, Haodong Zhang, Chuanwei Zhang

{"title":"Internal temperature estimation of lithium-ion battery based on improved electro-thermal coupling model and ANFIS","authors":"Jianping Wen, Zhensheng Li, Haodong Zhang, Chuanwei Zhang","doi":"10.1115/1.4064353","DOIUrl":"https://doi.org/10.1115/1.4064353","url":null,"abstract":"Accurate estimation of the internal temperature of lithium-ion batteries plays an important role in the development of a suitable battery thermal management system, safeguarding the healthy and safe operation of batteries, and improving battery performance. In order to accurately estimate the internal temperature of the battery, this paper proposes a method for estimating the internal temperature of lithium-ion batteries based on an improved electro-thermal coupling model and an Adaptive Network-based Fuzzy Inference System (ANFIS). First, a parameterization method of the electrical model is proposed, and an electrical model whose parameters are affected by temperature and SOC is established. Second, to overcome the complex nonlinear modeling problem of lithium-ion batteries, the ANFIS thermal model is established. Then, an improved electro-thermal coupling model for lithium-ion batteries is established by combining the proposed electrical model and the ANFIS thermal model to improve the accuracy of estimating the internal temperature of the battery. Finally, the effectiveness of the proposed method is verified by simulation and experiment.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"8 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139150237","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

A High Ceramic Loading LATP-PVDF-Al2O3 Composite Film for Lithium-ion Batteries with Favorable Porous Microstructure and Enhanced Thermal Stability 一种用于锂离子电池的高陶瓷负载 LATP-PVDF-Al2O3 复合薄膜，具有良好的多孔微结构和更高的热稳定性

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-12-21 DOI: 10.1115/1.4064352

Yu Gu, Chris Yuan

{"title":"A High Ceramic Loading LATP-PVDF-Al2O3 Composite Film for Lithium-ion Batteries with Favorable Porous Microstructure and Enhanced Thermal Stability","authors":"Yu Gu, Chris Yuan","doi":"10.1115/1.4064352","DOIUrl":"https://doi.org/10.1115/1.4064352","url":null,"abstract":"\u0000 A separator plays a crucial role in a Li-ion battery to carry liquid electrolytes while preventing short-circuiting between electrodes. Nevertheless, conventional commercial separators often exhibit poor wettability and are prone to shrink at elevated temperatures due to their limited thermal stability. Herein, we report a heat-resistant LATP-PVDF-Al2O3 composite film with outstanding wetting performance. The thin film was prepared using ball-mill mixing and tape-casting processes. Two solvents NMP and glycerol were applied to prepare the slurry and a favorable microstructure in the film was created after drying. The ionic conductivity of the film was tested at 1.39 mS cm−1 when paired with liquid electrolyte, almost double that of the commercial counterpart. The high ceramic loading of 70% improved both the thermal shrinkage resistance and dendrite inhibition of the membrane. When assembled in an NMC half-cell, the cycling capacity retentions of 92.8% and 92.1% are achieved after 50 cycles at 0.5 C and 1 C, demonstrating its capability to be used in Li-ion batteries.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"135 44","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138953371","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

Research on State of Health Estimation of Lithium Batteries Based on EIS and CNN-VIT Models 基于 EIS 和 CNN-VIT 模型的锂电池健康状况评估研究

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-12-21 DOI: 10.1115/1.4064350

C. Chang, Guangwei Su, Haimei Cen, Jiuchun Jiang, Aina Tian, Yang Gao, Tiezhou Wu

{"title":"Research on State of Health Estimation of Lithium Batteries Based on EIS and CNN-VIT Models","authors":"C. Chang, Guangwei Su, Haimei Cen, Jiuchun Jiang, Aina Tian, Yang Gao, Tiezhou Wu","doi":"10.1115/1.4064350","DOIUrl":"https://doi.org/10.1115/1.4064350","url":null,"abstract":"\u0000 With the development of electric vehicles, the demand for lithium-ion batteries has been increasing annually. Accurately estimating the State of Health (SOH) of lithium-ion batteries is crucial for their efficient and reliable use. Most of the existing research on SOH estimation is based on parameters such as current, voltage, and temperature, which are prone to fluctuations. Estimating the SOH of lithium-ion batteries based on Electrochemical Impedance Spectroscopy (EIS) and data-driven approaches has been proven effective. In this paper, we explore a novel SOH estimation model for lithium batteries based on EIS and Convolutional Neural Network (CNN)-Vision Transformer (VIT). The EIS data is treated as a grayscale image, eliminating the need for manual feature extraction and simultaneously capturing both local and global features in the data. To validate the effectiveness of the proposed model, a series of simulation experiments are conducted, comparing it with various traditional machine learning models in terms of Root Mean Square Error (RMSE), Mean Absolute Error (MAE), Mean Absolute Percentage Error (MAPE), and Coefficient of Determination (R2). The simulation results demonstrate that the proposed model performs best overall in the testing dataset at three different temperatures. This confirms that the model can accurately and stably estimate the SOH of lithium-ion batteries without requiring manual feature extraction and knowledge of battery aging temperature.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"130 51","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138953586","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

Supercapacitor voltage doubling equalization method based on adaptive grouping 基于自适应分组的超级电容器电压倍增均衡方法

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-12-21 DOI: 10.1115/1.4064351

Chao Wang, Xiaohu Liu, Li Han, Tiezhou Wu, Xiangyu Wang

引用次数: 0

TiO2 nanolayer coated carbon as Pt support for enhanced methanol oxidation reaction 将 TiO2 纳米层涂碳作为 Pt 支持物用于增强甲醇氧化反应

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-12-14 DOI: 10.1115/1.4064290

Weiqi Zhang, Yuan Jin, Meihui Tan, Huiyuan Liu, Qiang Ma, Qian Xu, Huaneng Su

引用次数: 0