Journal of Power Sources最新文献_第7页

A highly transparent and stretchable electrolyte with photoetching patterning function for electrochromic energy storage application 一种用于电致变色储能的具有光刻图像化功能的高透明可拉伸电解质

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237143

Xiongchao Shao , Yuhua Yang , Qidi Huang , Qida Wu , Yixiao Tang , Yujie Dong , Mi Ouyang , Cheng Zhang , Weijun Li

{"title":"A highly transparent and stretchable electrolyte with photoetching patterning function for electrochromic energy storage application","authors":"Xiongchao Shao , Yuhua Yang , Qidi Huang , Qida Wu , Yixiao Tang , Yujie Dong , Mi Ouyang , Cheng Zhang , Weijun Li","doi":"10.1016/j.jpowsour.2025.237143","DOIUrl":"10.1016/j.jpowsour.2025.237143","url":null,"abstract":"<div><div>Electrochromic devices (ECDs) are considered as the next-generation e-paper display and energy storage technology. However, the fabrication of ECDs is hindered by the requirements of the electrolyte, which necessitates transparency, a wide electrochemical window, high ionic conductivity, processability, and stability - all crucial factors in the EC field. At the same time, it is also the focus for an universal method to prepare patterned electrochromic films and devices. In this study, a UV-curable liquid gel electrolyte based on the PEGDA and PMMA which provides the rovide cross-linked skeleton is developed as a straightforward solution to these challenges. The resulting solid electrolyte exhibits high transparency (over 90 %), a wide electrochemical window (−2 to 2 V), a high ionic conductivity (approximately 3.2 × 10<sup>−4</sup> S cm<sup>−1</sup>) and exceptional stretchability with deformation extent exceeding 175 %. Besides, ECDs are successfully fabricated with excellent cycle stability (over 35,000 cycles) even in the absence of an ion storage layer. Surprising is that the patterning of electrolyte could pattern the cling electrochromic polymer film at the same time during the photocuring process. Furthermore, the cured electrolyte films which was flexible enough are also allowed for cutting, machining, rearrangement and combination with patterned EC films, showcasing its potential for efficient, low-cost production of high-quality patterned ECDs. In general, the unique electrolyte not only acts as an important part of the electrolyte layer in the ECDs, but also realizes the patterned display. This breakthrough not only paves the way for the wide application of polymer electrochromic products, but also provides ideas for the design of electrochemical energy storage devices in the future.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237143"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Synergistic impact of a low band gap polyanionic-cluster (NaCuPO4) and super-high surface area activated carbon on rechargeable Na-ion battery performance 低带隙聚阴离子簇（NaCuPO4）和超高表面积活性炭对可充电钠离子电池性能的协同影响

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237191

Po-Yuan Wang , Hamed Pourzolfaghar , Ang-You Hsieh , Chu-Pen Liao , Chien-Hung Wang , Sheng-Lin Hsieh , Yuan-Yao Li

{"title":"Synergistic impact of a low band gap polyanionic-cluster (NaCuPO4) and super-high surface area activated carbon on rechargeable Na-ion battery performance","authors":"Po-Yuan Wang , Hamed Pourzolfaghar , Ang-You Hsieh , Chu-Pen Liao , Chien-Hung Wang , Sheng-Lin Hsieh , Yuan-Yao Li","doi":"10.1016/j.jpowsour.2025.237191","DOIUrl":"10.1016/j.jpowsour.2025.237191","url":null,"abstract":"<div><div>Sodium-ion batteries (SIBs) attract significant interest and demonstrate great potential for energy storage applications due to their abundant resources and excellent electrochemical performance. NaCuPO<sub>4</sub> (NCP), a polyanionic material, is synthesized to utilize the role of Cu<sup>2+</sup> in modifying the electronic structure and facilitating Na <sup>+</sup> diffusion through Cu–O bonding interactions, thereby contributing to the stability of the 3D framework. The NCP/nitrogen-doped activated carbon (NAC) (NCP/NAC) composite forms through high-energy ball-milling technology. The combined impacts of incorporating high-surface-area NAC and the NaCuPO<sub>4</sub> (NCP) result in a high-performance and stable sodium-ion battery. This approach promotes fast electron migration and enhances interfacial contact with the electrolyte. Density functional theory (DFT) studies of NCP reveal a low band gap (0.378 eV), primarily caused by Cu 3d and other p orbitals. The NCP/NAC cathode exhibits an initial discharge capacity of 145.98 mAh g<sup>−1</sup> at 1C. Even after 800 cycles, the capacity retention rate remains at 67 %. We believe this work significantly inspires the advancement of polyanionic cathodes in high-performance SIBs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237191"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Neem-derived carbon-cobalt oxide composite (Co3O4@NC): A sustainable and cost-effective catalyst for oxygen reduction in fuel cells neem衍生的碳-钴氧化物复合材料（Co3O4@NC）：一种可持续且具有成本效益的燃料电池氧还原催化剂

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237173

Dhiraj Nagane , Dhanaraj Nilegave , Swapnil Girawale , Sachin Patil , Gulistan Shaikh , Vijay Jadhav , Priti Vairale , Anagha Pathak , Shashikant P. Patole , Sandesh Jadkar

{"title":"Neem-derived carbon-cobalt oxide composite (Co3O4@NC): A sustainable and cost-effective catalyst for oxygen reduction in fuel cells","authors":"Dhiraj Nagane , Dhanaraj Nilegave , Swapnil Girawale , Sachin Patil , Gulistan Shaikh , Vijay Jadhav , Priti Vairale , Anagha Pathak , Shashikant P. Patole , Sandesh Jadkar","doi":"10.1016/j.jpowsour.2025.237173","DOIUrl":"10.1016/j.jpowsour.2025.237173","url":null,"abstract":"<div><div>This study introduces a cost-effective and sustainable oxygen reduction reaction (ORR) catalyst by integrating cobalt oxide nanoparticles (Co<sub>3</sub>O<sub>4</sub>) with carbon derived from neem leaves (NC), forming a Co<sub>3</sub>O<sub>4</sub>@NC composite. The Co<sub>3</sub>O<sub>4</sub> nanoparticles were synthesized via a hydrothermal method, and the composite was thoroughly characterized using X-ray diffraction, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, energy dispersive spectroscopy, and thermogravimetric analysis. Electrochemical evaluation in anion exchange membrane fuel cells revealed that the Co<sub>3</sub>O<sub>4</sub>@NC catalyst exhibits comparable performance to a commercial 40 wt% Pt/C catalyst, achieving an open circuit potential of 0.93 V versus 0.96 V for Pt/C. At a mass loading of 1 mg/cm<sup>2</sup>, the Co<sub>3</sub>O<sub>4</sub>@NC catalyst delivered a maximum power density of 42.60 mW/cm<sup>2</sup>. These findings demonstrate the potential of Co<sub>3</sub>O<sub>4</sub>@NC, derived from a renewable biomass source, as a promising and sustainable alternative to expensive platinum-based catalysts for ORR applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237173"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dual carbon decorated Na3.5Mn0.5V1.5(PO4)3 cathode with high-density and long-cycling span-life for sodium-ion batteries 钠离子电池用高密度长循环寿命双碳修饰Na3.5Mn0.5V1.5(PO4)3阴极

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237194

Fengqi Lu, Yidan Lu , Longzhu Zhao

{"title":"Dual carbon decorated Na3.5Mn0.5V1.5(PO4)3 cathode with high-density and long-cycling span-life for sodium-ion batteries","authors":"Fengqi Lu, Yidan Lu , Longzhu Zhao","doi":"10.1016/j.jpowsour.2025.237194","DOIUrl":"10.1016/j.jpowsour.2025.237194","url":null,"abstract":"<div><div>Mn-based NASICON-structural cathodes are considered as the prospective candidate for sodium ion batteries in the matter of high working potential, low price, and environmental-kindly. Herein, the carbon nanotubes anchoring in the amorphous carbon coating Na<sub>3.5</sub>Mn<sub>0.5</sub>V<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> particle (NMVP@C@CNTs) is fabricated via the sol-gel procedure and post heat-treatment. After decorating CNTs forming 3D conductive framework can virtually ameliorate the electroconductivity of composite and facilitate the sodium ion diffusivity, thus significantly boosting the sodium storage properties. Via the stepwise redox reactions of V<sup>3+</sup>↔V<sup>5+</sup> and Mn<sup>2+</sup>↔Mn<sup>3+</sup>, the as-prepared NMVP@C@CNTs cathode delivers the high discharge capacity (124.5 mAh g<sup>−1</sup> at 0.2C), high output potential (3.45V), dramatic rate capability (96.2 mAh g<sup>−1</sup> at 10C), and low fade rate of 0.003 % per cycle in the long-term cylcing at 10C. The results of X-ray diffraction during cycling imply that the NMVP@C@CNTs electrode undergoes a single-phase change and biphasic transition structural evolution. Furthermore, the fabricated NMVP@C@CNTs and hard carbon full cell demonstrates an output voltage of 3.34V, satisfactory energy density (348.7 Wh kg<sup>−1</sup>), and appropriate cyclability of 89.6 % after 90 cycles at 2C. This work provides an economical and sustainable approach to explore Mn-based NASICON-structural cathodes for grid-scale energy storage devices.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237194"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Exploring the impact of basicity and oxygen vacancy for efficient CO2 adsorption in solid oxide electrolysis cells 探讨碱度和氧空位对固体氧化物电解池中高效CO2吸附的影响

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237204

Muhammad Nadeem Khan , Lingting Ye , Kui Xie

{"title":"Exploring the impact of basicity and oxygen vacancy for efficient CO2 adsorption in solid oxide electrolysis cells","authors":"Muhammad Nadeem Khan , Lingting Ye , Kui Xie","doi":"10.1016/j.jpowsour.2025.237204","DOIUrl":"10.1016/j.jpowsour.2025.237204","url":null,"abstract":"<div><div>A novel approach to boost the catalytic performance of cathode materials in solid oxide electrolysis cells (SOECs) is developed by modifying the oxygen ion basicity of the perovskite structures through strategic cation doping. In this study, Sr<sub>2</sub>Fe<sub>1.5-x</sub>Cu<sub>x</sub>Mo<sub>0.5</sub>O<sub>6−δ</sub> (SFC<sub>x</sub>M) perovskites are synthesized and systematically characterized to evaluate their oxygen ion basicity and electrocatalytic activity and assess their effects on the electrochemical performance. The Sr<sub>2</sub>Fe<sub>0.75</sub>Cu<sub>0.75</sub>Mo<sub>0.5</sub>O<sub>6−δ</sub> (SFCu<sub>0.75</sub>M) cathode demonstrates promising performance in experimental tests, achieving a current density of 0.91 A cm<sup>−2</sup> at 1.8 V and 850 °C, with stable operation over 100 h in a CO<sub>2</sub> atmosphere. These findings confirm that doping with higher-electronegativity ions, such as Cu, reduces the oxygen ion basicity, increases the oxygen vacancy concentration in the cathode, and enhances electrochemical performance. This approach provides crucial insights for engineering sophisticated electrodes suitable for direct carbon dioxide electrolysis and other catalytic electrochemical processes.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237204"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Nitrogen doped graphene quantum dots (NGQD) pillared Ta4C3Tx MXene as high-performance electrochemical supercapacitors 氮掺杂石墨烯量子点（NGQD）柱状Ta4C3Tx MXene作为高性能电化学超级电容器

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237190

Sabeen Fatima , M. Waqas Hakim , Xiaoxiao Zheng , Yu Sun , Ziheng Li , Nan Han , Muyang Li , Zeyuan Wang , Lei Han , Liang Wang , Safia Khan , Jiangwei Liu , Hu Li

{"title":"Nitrogen doped graphene quantum dots (NGQD) pillared Ta4C3Tx MXene as high-performance electrochemical supercapacitors","authors":"Sabeen Fatima , M. Waqas Hakim , Xiaoxiao Zheng , Yu Sun , Ziheng Li , Nan Han , Muyang Li , Zeyuan Wang , Lei Han , Liang Wang , Safia Khan , Jiangwei Liu , Hu Li","doi":"10.1016/j.jpowsour.2025.237190","DOIUrl":"10.1016/j.jpowsour.2025.237190","url":null,"abstract":"<div><div>Two-dimensional (2D) materials are proved to possess outstanding energy storage capabilities for advanced supercapacitors, yet these materials require modification to overcome field obstacles and reach their full potential. Here, we prepared tantalum carbide MXene and nitrogen-doped graphene quantum dots (NGQD) by adopting facile synthesis routes. Surface engineering of 2D tantalum carbide sheets is carefully performed with zero-dimensional graphene to achieve NGQD/Ta<sub>4</sub>C<sub>3</sub>T<sub>x</sub> nanosheets. The compositional analysis demonstrated the attachment of quantum dots with MXene sheets. The modified 1.5%-NGQD/Ta<sub>4</sub>C<sub>3</sub>T<sub>x</sub>, 3%-NGQD/Ta<sub>4</sub>C<sub>3</sub>T<sub>x</sub>, 5%-NGQD/Ta<sub>4</sub>C<sub>3</sub>T<sub>x</sub>, 7%-NGQD/Ta<sub>4</sub>C<sub>3</sub>T<sub>x</sub> and 10%-NGQD/Ta<sub>4</sub>C<sub>3</sub>T<sub>x</sub> nanosheets presented enhanced energy storage capability than NGQD and plain MXene. Graphene quantum dots enable Ta<sub>4</sub>C<sub>3</sub>T<sub>x</sub> to have faster more stable reaction kinetics and enhance the gravimetric capacitance 7 folds (701 F/g) compared to plain MXene (100 F/g). Due to the exceptional working electrode performances, an asymmetric supercapacitor is also fabricated with NGQD/Ta<sub>4</sub>C<sub>3</sub>T<sub>x</sub> nanosheets as working electrode. The device exhibited a pseudocapacitive battery-like storage mechanism with a specific capacity of 110 Cg<sup>-1</sup>, power and energy densities of 9000 W/kg and 55 W-h/Kg respectively. Due to the low corrosion rate exhibited by Tafel plots an excellent capacity retention is observed up to 20000 cycles. The study imparts valuable insights into engineering 0D/2D nanostructures for next-generation energy storage systems.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237190"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Waste-derived carbon-enhanced iron sulfide microflowers for high-performance energy storage applications 用于高性能储能应用的废物衍生碳增强硫化铁微花

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237206

Shimaa E. Shaker , Ayman A.EL. Amin , Saad G. Mohamed

{"title":"Waste-derived carbon-enhanced iron sulfide microflowers for high-performance energy storage applications","authors":"Shimaa E. Shaker , Ayman A.EL. Amin , Saad G. Mohamed","doi":"10.1016/j.jpowsour.2025.237206","DOIUrl":"10.1016/j.jpowsour.2025.237206","url":null,"abstract":"<div><div>This work presents an environmentally friendly form of activated carbon (AC) made from pea peels using a microwave and zinc chloride. Iron sulfide (FeS<sub>2</sub>-FeS) microflowers were also efficiently synthesized via a simple hydrothermal technique over various times. The AC/(FeS<sub>2</sub>-FeS) composite was developed using a simple hydrothermal technique with a variable AC ratio. A 20-mg AC/(FeS<sub>2</sub>-FeS) achieved a superior electrochemical energy storage behavior because of its unique structure and high conductivity, allowing efficient pathways for the movement of ions/electrons. When it is employed as an electrode material for supercapacitors, the as-prepared 20-mg AC/(FeS<sub>2</sub>-FeS) electrode produces an excellent capacity of 433.4C g<sup>−1</sup> at a current density of 1 A g<sup>−1</sup>. Exceeding the performance of other composites, the 20-mg AC/(FeS<sub>2</sub>-FeS) demonstrates remarkable stability, maintaining 82 % of its capacity after 3000 cycles. A 20-mg AC/(FeS<sub>2</sub>-FeS)//AC hybrid device is developed for practical applications. This configuration has a high specific energy of 14.4 Wh kg<sup>−1</sup> and a specific power of 517.97 W kg<sup>−1</sup>. Interestingly, even after 5000 cycles, the hybrid device maintained 72.7 % of its specific capacity and achieved 100 % coulombic efficiency. These findings emphasize the stability and exceptional performance of the 20-mg AC/(FeS<sub>2</sub>-FeS)//AC device.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237206"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The effect of internal manifold configuration on thermal and electrochemical distributions in commercial scale solid oxide fuel cell stacks fueled by hydrogen and hydrocarbon 内流形结构对氢/烃固体氧化物燃料电池堆热分布和电化学分布的影响

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237148

Hoyun Choi, Janghyun Lim, Wooseok Lee, Jongsup Hong

{"title":"The effect of internal manifold configuration on thermal and electrochemical distributions in commercial scale solid oxide fuel cell stacks fueled by hydrogen and hydrocarbon","authors":"Hoyun Choi, Janghyun Lim, Wooseok Lee, Jongsup Hong","doi":"10.1016/j.jpowsour.2025.237148","DOIUrl":"10.1016/j.jpowsour.2025.237148","url":null,"abstract":"<div><div>High operating temperatures and complex internal reactions of solid oxide fuel cell (SOFC) often lead to thermal non-uniformity and uneven electrochemical reaction distributions, which degrades performance and long-term durability. To reduce the non-uniformities and overcome degradation issues, this study investigates the effects of manifold configurations on the thermal, flow, and electrochemical reaction distributions within a commercial scale, cross-flow type SOFC stack under hydrogen and hydrocarbon operations. Using a high-fidelity three-dimensional numerical model, this research compares U-type (all manifolds at one end of the stack) and Z-type (incoming and outgoing manifolds at either end of the stack) manifold stacks. The Z-type configuration demonstrates significant improvements in vertical uniformity by increasing fuel and air flow to the upper repeating units, mitigating thermal gradients and enhancing chemical stability. Under hydrogen operation, the Z-type stack reduces the upper-layer hot zone temperature and alleviates hydrogen and oxygen depletion. Similar trends are observed under hydrocarbon operation, where endothermic reforming reactions lead to unique thermal characteristics, yet the Z-type manifold effectively improves flow uniformity (i.e., uniform mass flow rate of fuel and air to each repeating unit). While the U-type stack exhibits slightly higher power output, the Z-type manifold achieves more balanced distributions, highlighting its role in enhancing long-term operational stability by preventing localized degradation.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237148"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Various types of A.C conduction mechanism models for solid polymer electrolytes (SPE): A review 固体聚合物电解质（SPE）交流传导机理模型综述

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237217

Jacky Yong , Tan Winie , Mayeen Uddin Khandaker , Yuncai Chen , Haw Jiunn Woo

{"title":"Various types of A.C conduction mechanism models for solid polymer electrolytes (SPE): A review","authors":"Jacky Yong , Tan Winie , Mayeen Uddin Khandaker , Yuncai Chen , Haw Jiunn Woo","doi":"10.1016/j.jpowsour.2025.237217","DOIUrl":"10.1016/j.jpowsour.2025.237217","url":null,"abstract":"<div><div>This review explores the various AC conduction mechanism models for solid polymer electrolytes (SPEs), which are critical for advancing electrochemical devices like batteries and fuel cells. SPEs are considered promising alternatives to conventional liquid electrolytes due to their enhanced safety and flexibility. However, their relatively low ionic conductivity, especially at room temperature, remains a challenge. To address this, the paper discusses four key AC conduction models: Correlated Barrier Hopping (CBH), Quantum Mechanical Tunnelling (QMT), Small Polaron Hopping (SPH), and Overlapping Large Polaron Tunnelling (OLPT). Each model provides insights into different charge transport processes, such as thermally activated ion hopping and quantum tunnelling. The study highlights how factors like temperature and frequency influence conduction mechanisms, with each model describing distinct behaviours for charge carriers. For example, CBH and SPH rely on hopping mechanisms, while QMT and OLPT focus on tunnelling. By understanding these mechanisms, researchers can optimize the SPE system to enhance ionic conductivity. The paper concludes that selecting the appropriate model depends on the specific SPE material and environmental conditions, emphasizing the need for continued research to further refine these models and explore new SPE formulations for improved performance in practical applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237217"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-temperature polymer electrolyte membranes: Proton conductivity and performance of polybenzimidazole/Ti0.9Mn0.1P2O7 高温聚合物电解质膜：聚苯并咪唑/Ti0.9Mn0.1P2O7的质子电导率及性能

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237172

Jay N. Mishra , Nitika Devi , Yong-Song Chen , Manisha Sharma , Prabhakar Singh

{"title":"High-temperature polymer electrolyte membranes: Proton conductivity and performance of polybenzimidazole/Ti0.9Mn0.1P2O7","authors":"Jay N. Mishra , Nitika Devi , Yong-Song Chen , Manisha Sharma , Prabhakar Singh","doi":"10.1016/j.jpowsour.2025.237172","DOIUrl":"10.1016/j.jpowsour.2025.237172","url":null,"abstract":"<div><div>Polymer electrolyte membranes have proven to be highly successful in creating efficient, emission-free fuel cells, but their low-temperature limitation restricts full potential utilization. To address this issue, in the present work, polybenzimidazole (PBI)/Ti<sub>0.9</sub>Mn<sub>0.1</sub>P<sub>2</sub>O<sub>7</sub> (TMP) inorganic-organic composite membranes were fabricated, and their morphological and structural characterizations were performed. Before testing, all membranes were loaded with phosphoric acid. The resulting PBI/TMP composite membrane has a higher proton conductivity of 212.3 mS cm<sup>−1</sup> and activation energy ⁓ 5.49 kJ mol<sup>−1</sup> as compared to the pristine PBI membrane with protonic conductivity 102.7 mS cm<sup>−1</sup> and activation energy ⁓ 1.24 kJ mol<sup>−1</sup>. The PBI/TMP membrane can function effectively up to 180 °C, achieving a maximum peak power density of 376 mW cm<sup>−2</sup> at the current density of 1120 mA cm<sup>−2</sup> with the open circuit potential ⁓0.940 V. The inclusion of TMP significantly enhances overall cell performance compared to pristine PBI, where the peak power density of 364 mW cm<sup>−2</sup> and current density of 958 mA cm<sup>−2</sup> at 180 °C were obtained with an open circuit potential of 0.819 V. This study revealed successfully the potential of PBI/TMP composite membranes for their application in high-temperature proton exchange membrane fuel cells.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237172"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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