Energy technology最新文献

Enhancing Supercapacitor Performance of NiCoMn‐Layered Double Hydroxide with Ag–Citrate/Polyaniline Nanocomposites 用硝酸银/聚苯胺纳米复合材料提高镍钴锰层状双氢氧化物的超级电容器性能

IF 3.8 4区工程技术

Energy technology Pub Date : 2024-11-17 DOI: 10.1002/ente.202401730

Ammar Makda, Mohsin Ali Marwat, Muhammad Hamza Mahmood, Abdullah Naeem, Syed Muhammad Abdullah, Muhammad Humayun, Muhammad Ramzan Abdul Karim, Mohamed Bououdina, Muhammad Zubair Khan, Muhammad Bilal Hanif

{"title":"Enhancing Supercapacitor Performance of NiCoMn‐Layered Double Hydroxide with Ag–Citrate/Polyaniline Nanocomposites","authors":"Ammar Makda, Mohsin Ali Marwat, Muhammad Hamza Mahmood, Abdullah Naeem, Syed Muhammad Abdullah, Muhammad Humayun, Muhammad Ramzan Abdul Karim, Mohamed Bououdina, Muhammad Zubair Khan, Muhammad Bilal Hanif","doi":"10.1002/ente.202401730","DOIUrl":"https://doi.org/10.1002/ente.202401730","url":null,"abstract":"Layered double hydroxide (LDH) has a layered structure, which makes it a strong candidate for supercapacitors (SC) due to its high surface area. However, they suffer from low conductivity due to insufficient charge transfer across their layers. This research aims to overcome this obstacle by introducing conductive channels among the layers by the addition of Ag–citrate and polyaniline (PANI). Consequently, five electrodes (S1–5) were made from NiCoMn LDH (referred to as LDH henceforth) and 2:1 Ag–citrate and PANI composite (Ag/PANI) in different ratios and made into electrodes. Electrochemical analysis revealed successful improvement in the performance of LDH as the fraction of Ag/PANI increased until it equaled Ag/PANI where the highest specific capacitance of 617 F g−1 was obtained, which is 12% greater than the value for solely LDH electrode (550 F g−1). A device was fabricated with the best electrode (S3) and activated carbon electrode, which demonstrated energy densities and power densities of 41 WhKg−1 and 412.5 W Kg−1 and 14 WhKg−1and 8250 W Kg−1 at 0.5 and 10 A g−1 current densities, respectively. It also exhibited a capacitive retention of about 75% at 3000 galvanostatic charge–discharge cycles. These results encourage the use in of NiCoMn LDH, in a 1:1 ratio with Ag/PANI in SCs due to its remarkable performance.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"51 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665596","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

Thermal Safety Characteristic Analysis of Large-Format Pouch Li-Ion Capacitors 大型袋装锂离子电容器的热安全特性分析

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-10-04 DOI: 10.1002/ente.202401272

Jing Zhang, Guotao Gao, Yabin An, Keliang Zhang, Jijun Feng, Xianzhong Sun, Chen Li, Xiaohu Zhang, Yinghui Gao, Kai Wang, Xiong Zhang, Yanwei Ma

引用次数: 0

Comparative Experimental Study on Monofacial and Bifacial Photovoltaic Noise Barriers 单面和双面光伏隔音屏障的对比实验研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-09-30 DOI: 10.1002/ente.202400912

Chunying Li, Jixing Xie, Xiaodong Wang, Fanbo Zeng, Yinan Yang, Haida Tang

{"title":"Comparative Experimental Study on Monofacial and Bifacial Photovoltaic Noise Barriers","authors":"Chunying Li, Jixing Xie, Xiaodong Wang, Fanbo Zeng, Yinan Yang, Haida Tang","doi":"10.1002/ente.202400912","DOIUrl":"https://doi.org/10.1002/ente.202400912","url":null,"abstract":"Solar energy utilization in the transportation sector is important for reducing fossil fuel consumption and achieving the grant goal of carbon neutrality. The photovoltaic noise barriers (PVNB) are recognized as a potential alternative for electric vehicle charging. This study aims to evaluate the power generation capabilities of both monofacial photovoltaic noise barriers (mono-PVNB) and bifacial photovoltaic noise barriers (bi-PVNB) when applied along roads with different directions and shading conditions. Results show that the daily yields of bi-PVNB facing west, southwest, south, and southeast are 754, 819, 1101, and 894 Wh, respectively. In contrast, the daily yields of mono-PVNB are 459, 711, 968, and 764 Wh. The bifacial gains are, respectively, 64, 15, 14, and 17%. The influence of partial shading on PV power generation is tested, and sharp decrease is observed when horizontal shading reaches 20% and vertical shading reaches 40%. In summary, the bi-PVNB shows satisfactory power generation ability with different orientation and shading conditions. Under Shenzhen climate, the annual power generation of bi-PVNB along east–west, north–south, southeast–northwest, and southwest–northeast direction roads are predicted to be 304, 325, 342, and 335 MWh per kilometer.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 11","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642495","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

Study on Thermal Runaway Behavior and Early Warning Algorithm of Ternary Lithium Battery Pack Under Preload Force

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-09-29 DOI: 10.1002/ente.202401238

Senrong Wei, Jianhua Du, Haobin Liang, Canxiong Wang, Suzhen Zheng, Xingfeng He, Jiabin Wang, Leji Xiong, Yingjie Ou, Ran Tu

{"title":"Study on Thermal Runaway Behavior and Early Warning Algorithm of Ternary Lithium Battery Pack Under Preload Force","authors":"Senrong Wei, Jianhua Du, Haobin Liang, Canxiong Wang, Suzhen Zheng, Xingfeng He, Jiabin Wang, Leji Xiong, Yingjie Ou, Ran Tu","doi":"10.1002/ente.202401238","DOIUrl":"https://doi.org/10.1002/ente.202401238","url":null,"abstract":"Overcharging is a primary cause of thermal runaway in ternary lithium-ion batteries, often leading to serious safety incidents. Early detection of thermal runaway during overcharging is therefore critical. This study investigates a 5 Ah ternary lithium battery pack, applying appropriate preload force to simulate real-world conditions. Various overcharge experiments are conducted under different conditions, and changes in battery voltage, temperature, and expansion force are thoroughly analyzed. The results indicate that under the same initial conditions, higher charging rates accelerate the temperature rise in the lithium battery. Additionally, the internal gas generation rate increases, causing a faster rise in edge pressure and leading to earlier battery cracking. Building on these findings, a three-level early warning algorithm is developed, which comprehensively considers voltage, temperature, and expansion force changes. Experimental validation demonstrates that this algorithm can accurately identify the current stage of thermal runaway and detect the transition to the third warning stage 604 s before complete failure, thus providing critical protection for the safe operation of the battery pack. This study offers valuable guidance for enhancing the monitoring and early warning capabilities of battery management systems.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 12","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869199","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

Module-Based Supercapacitors: Potential Energy Storage Solutions for Large-Scale Photovoltaic Systems

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-09-29 DOI: 10.1002/ente.202401011

Bowen Zheng, Chang Liu, Mingming Pan, Feixiang Gong, Xu Xu, Xuchen Wang, Liye Zhao

{"title":"Module-Based Supercapacitors: Potential Energy Storage Solutions for Large-Scale Photovoltaic Systems","authors":"Bowen Zheng, Chang Liu, Mingming Pan, Feixiang Gong, Xu Xu, Xuchen Wang, Liye Zhao","doi":"10.1002/ente.202401011","DOIUrl":"https://doi.org/10.1002/ente.202401011","url":null,"abstract":"Intermittency is an inherent characteristic of photovoltaic (PV) power generation and results in high ramp rates of the generated power. This article explores the feasibility of integrating supercapacitors at the PV module level, aiming to reduce the power fluctuations of PV systems and control the power ramp rate into the power grid. First, an equivalent circuit model of a single-phase grid-connected PV system based on module-based supercapacitors is proposed, and a power ramp rate control scheme is established. Then, experimental setups for a single-phase grid-connected PV system based on module-based supercapacitors are implemented, and the computational model is verified through experiments. Finally, using the verified computational model and the proposed control scheme, the module-based supercapacitor sizes for different PV system sizes (PV module, rooftop, small system, large system) that meet specific ramp rate requirements under different ramp rate limits (5, 10, 15% min−1) are compared. Case studies show that large-scale PV systems with geographical smoothing effects help to reduce the size of module-based supercapacitors per normalized power of installed PV, providing the possibility for the application of modular supercapacitors as potential energy storage solutions to improve power ramp rate performance in large-scale PV systems.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 12","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862332","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

Thermodynamic and Economic Analysis of the Green Ammonia Synthesis System Driven by Synergistic Hydrogen Production Using Alkaline Water Electrolyzers and Proton Exchange Membrane Electrolyzers

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-09-29 DOI: 10.1002/ente.202401169

Jianyu Yu, Luyao Liu, Yiyun Du, Yanchao Li, Dongshun Zhang, Biao Li, Xianhai Liu, Linsheng Cheng, Xinyi Zhang, Yumeng Zhang

{"title":"Thermodynamic and Economic Analysis of the Green Ammonia Synthesis System Driven by Synergistic Hydrogen Production Using Alkaline Water Electrolyzers and Proton Exchange Membrane Electrolyzers","authors":"Jianyu Yu, Luyao Liu, Yiyun Du, Yanchao Li, Dongshun Zhang, Biao Li, Xianhai Liu, Linsheng Cheng, Xinyi Zhang, Yumeng Zhang","doi":"10.1002/ente.202401169","DOIUrl":"https://doi.org/10.1002/ente.202401169","url":null,"abstract":"Green ammonia and hydrogen from renewable energy sources have emerged as crucial players during the transition of the chemical industry from a fossil energy-dominated economy to one that is environmentally friendly. This work proposes a green ammonia synthesis system driven by synergistic hydrogen generation using alkaline water electrolyzers (AWE) and proton exchange membrane electrolyzers (PEMEC). The effects of hydrogen-production ratios of PEMEC and AWE on the thermodynamic and economic performance of the system are compared and analyzed via multi-objective optimization. The findings showed that an increase in the amount of hydrogen produced by PEMEC improves the system's energy efficiency, but the payback period is delayed because of the PEMEC high initial investment cost. The techno-economic performance of the system at a 1:1 ratio of PEMEC to AWE hydrogen production are investigated considering the system level heat integration based on the pinch point analysis method to maximize the heat recovery. The results show that increasing the operational temperature, the pressure of the electrolyzer, and the ammonia synthesis pressure will enhance the system's thermal performance. Economic analysis shows that reducing electricity prices and electrolyzer investment costs will be the key to achieving the economic feasibility of the green ammonia system.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 12","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862338","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

Robust and Highly Stretchable Ionic Conductive Thermoplastic Elastomers Prepared via Easily Scalable Melt Transesterification and Melt Blending for Flexible Triboelectric Nanogenerators 通过易于扩展的熔融酯交换和熔融共混制备用于柔性三电纳米发电机的坚固且高度可拉伸的离子导电热塑性弹性体

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-09-25 DOI: 10.1002/ente.202400834

Dongguang Yan, Chengyu Gu, Xinrui Pi, Yingqiang Fan, Bingbing Feng, Tianhao Li, Tianran Deng, Guanggui Cheng

{"title":"Robust and Highly Stretchable Ionic Conductive Thermoplastic Elastomers Prepared via Easily Scalable Melt Transesterification and Melt Blending for Flexible Triboelectric Nanogenerators","authors":"Dongguang Yan, Chengyu Gu, Xinrui Pi, Yingqiang Fan, Bingbing Feng, Tianhao Li, Tianran Deng, Guanggui Cheng","doi":"10.1002/ente.202400834","DOIUrl":"https://doi.org/10.1002/ente.202400834","url":null,"abstract":"In recent years, the rapid advancement of self-powered wearable electronic devices has propelled the research focus toward flexible electrodes for single electrode triboelectric nanogenerators (STENG). However, there is currently a lack of reported methods for large-scale preparation and high-efficiency molding of these flexible electrodes. In this study, PBAT-co-PEG/NaSCN blends-based ionic conductive thermoplastic elastomer (ICTE) are successfully prepared by initially conducting melt transesterification, followed by melt blending. The STENG, featuring an ICTE electrode, exhibited a remarkable open-circuit voltage of 50 V, short-circuit current of 460 nA and charge transfer of 16 nC. With the aid of Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC), the conduction mechanism of ICTE is elucidated. Due to good fluidity and processing performance, bars of ICTE suitable for mechanical properties test could be conveniently prepared via injection molding, which demonstrates the tensile strength and elongation, 13 MPa and 2500%, respectively. A 4 × 4 cm2 STENG fabricated with ICTE electrode could not only have good energy-harvesting performance but also could be used in a sensor to sense the motion detection. The ICTE, with its simple and environmentally friendly preparation process and high-efficiency molding, exhibits a promising prospect in the large-scale preparation and application of flexible STENG.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 12","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861985","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

Tracing Root Causes of Electric Vehicle Fires

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-09-23 DOI: 10.1002/ente.202400931

Zhenqian Zhang, Honglei Dong, Li Wang, Yan Wang, Xiangming He

{"title":"Tracing Root Causes of Electric Vehicle Fires","authors":"Zhenqian Zhang, Honglei Dong, Li Wang, Yan Wang, Xiangming He","doi":"10.1002/ente.202400931","DOIUrl":"https://doi.org/10.1002/ente.202400931","url":null,"abstract":"As electric vehicles (EVs) emerge as the backbone of modern transportation, the concurrent uptick in battery fire incidents presents a disconcerting challenge. To tackle this issue effectively, it is imperative to pierce beyond the superficial causes of lithium-ion battery (LIB) failures—such as equipment malfunctions or physical damage—and to excavate the underlying triggers. This nuanced approach is pivotal to refining EV quality, diminishing fire incidents, and bolstering consumer trust. While issues that are readily apparent to consumers, like spontaneous battery degradation, vehicular collisions, or submersion, may seem like the primary culprits, they merely scratch the surface of a more complex problem. The true mechanisms behind these fires involve internal and external short circuits, yet these explanations fall short in providing actionable guidance for manufacturers or end-users to enhance LIB safety. The heart of the issue is identifying the root causes that bridge failure triggers and resulting fires. A total of 20 root causes are identified, linking them to real-world scenarios like overcharging causing internal shorts or wire harness issues leading to external shorts. With this insight, stakeholders can more effectively investigate and understand EV LIB fire incidents, bolstering EV safety and reliability, and promoting consumer confidence.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 12","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862269","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

3D Biomass-Based Interfacial Solar Steam Generation: Component, Optimization, and Application

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-09-23 DOI: 10.1002/ente.202401261

Xiahui Liu, Ting Shu, Tao Liu, Yuliang Zhang

{"title":"3D Biomass-Based Interfacial Solar Steam Generation: Component, Optimization, and Application","authors":"Xiahui Liu, Ting Shu, Tao Liu, Yuliang Zhang","doi":"10.1002/ente.202401261","DOIUrl":"https://doi.org/10.1002/ente.202401261","url":null,"abstract":"The seawater desalination and wastewater treatment by the interfacial solar steam generation (ISSG) technique is considered as a green, economical, sustainable, low-energy-consumption, and potential fresh water production strategy to solve the water shortage and energy crisis. Recently, efficient biomass-based ISSGs (BISSGs) have been widely reported due to its efficient photothermal conversion efficiency and good hydrophilic performance. The BISSGs with efficient solar absorption and water transmission performance by design and optimization their various forms and structures and related photothermal properties is also significantly great for its scale application. This review highlights recent advancements in 3D BISSG systems, with a focus on the design and optimization of photothermal conversion materials and substrate materials. Then, the review also discusses the potential of biomass materials in BISSG applications, aiming to provide a theoretical basis for developing cost-effective, efficient, and sustainable water purification technologies. Finally, the challenges and development prospects of the BISSG system in basic research and practical application will provide theoretical guidance for the further development of this technology.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 12","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862076","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

Liquid Piston Compression Heat Transfer Prediction via Thermal-Resistance Network: Simulation, Experimental Validation, and Liquid Carryover Evaluation

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-09-19 DOI: 10.1002/ente.202401121

Luke Middleton, Marco Bernagozzi, Rob Morgan, Gareth Milton, Andrew Atkins, Penny Atkins

{"title":"Liquid Piston Compression Heat Transfer Prediction via Thermal-Resistance Network: Simulation, Experimental Validation, and Liquid Carryover Evaluation","authors":"Luke Middleton, Marco Bernagozzi, Rob Morgan, Gareth Milton, Andrew Atkins, Penny Atkins","doi":"10.1002/ente.202401121","DOIUrl":"https://doi.org/10.1002/ente.202401121","url":null,"abstract":"Liquid piston compressors gain attention due to their potential for more efficient and isothermal compression compared to traditional solid piston compressors. Liquid piston compressors use a liquid column instead of a solid piston, allowing for innovative mechanisms to enhance heat transfer and achieve near-isothermal compression. However, a validated analytical model for heat transfer in liquid piston compressors is still needed to understand the exhaust phase within a liquid piston. In this work, a thermal network model, able to predict the polytropic index to within 8% of the experimental results, is proposed. Moreover, thorough experimentation is conducted to measure the amount of liquid carried over to better understand the exhaust phase. In the results, it is revealed that the piston carries over 13–21 mL of liquid within the exhaust gas for 10–23 s of stroke. Notably, the difference in liquid carried over for the three-stroke times is not statistically significant, indicating that the liquid carried over is a function of liquid piston design and not stroke time. Finally, most liquid piston applications consider only water; hence, for the first time, this research assesses the stability of a cycle using a nonflammable hydraulic fluid (Fuchs 46 M red) to enhance compressor longevity and material compatibility.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 12","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202401121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0