Zhigang Wang, Du Wang, Xin Ren, Mujie Xue, Tingju Wang, Mingyuan Wan, Yucheng Wang, Hao Wang
{"title":"A Review of Supercritical Carbon Dioxide Heat Transfer and Flow Properties in Pipes","authors":"Zhigang Wang, Du Wang, Xin Ren, Mujie Xue, Tingju Wang, Mingyuan Wan, Yucheng Wang, Hao Wang","doi":"10.1002/ente.202401461","DOIUrl":"https://doi.org/10.1002/ente.202401461","url":null,"abstract":"<p>Supercritical carbon dioxide (s-CO<sub>2</sub>) has the characteristics of highly efficient and has been used in the engineering field. This article reviews the research progress on the heat transfer and flow properies in s-CO<sub>2</sub> tubes. To obtain the most accurate heat transfer and friction factor correlations, new correlations derived from experimental data are proposed, and the accuracy of the published correlations is assessed in conjunction with the experimental data. The results show how important variables such as mass flow, inlet temperature, and tube size relate to the properties of pressure drop and heat transfer in pipes that use s-CO<sub>2</sub> as the work material. The D-M-2011 heat transfer correlation had the highest accuracy, with 62.57% of the data having a relative deviation of less than ±20%, and the Wang-2014 friction factor correlation had the highest accuracy, with 72.91% of the data having a relative deviation of less than ±20%. Considering the dimensionless number correction and segmented function correction to improve the correlation, 82.41% of the data in the new heat transfer correlation have a relative deviation less than ±20% and 83.53% of the data in the new friction factor correlation have a relative deviation less than ±20%.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938796","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}
Ali Sadeghi, Nima Nikou, Alireza Tayefeh Parchillo, Ahmad Vaeli, Mojtaba Askari, Ali Ghaffarinejad
{"title":"Recent Advances of Deposition Methods for High-Performance Lithium–Sulfur Batteries – A Review","authors":"Ali Sadeghi, Nima Nikou, Alireza Tayefeh Parchillo, Ahmad Vaeli, Mojtaba Askari, Ali Ghaffarinejad","doi":"10.1002/ente.202401484","DOIUrl":"https://doi.org/10.1002/ente.202401484","url":null,"abstract":"<p>During the last decades, lithium-ion batteries attracted great attention due to their low cost and environmentally friendly energy storage systems as great alternatives for fossil fuels. However, their low theoretical energy densities prevent their wide utilization for human life. Therefore, lithium–sulfur batteries have been introduced due to high theoretical energy densities (≈2600 Wh kg<sup>−1</sup>) and abundant elements of sulfur cathode. However, some challenges such as the shuttle phenomenon, lithium dendritic growth, and low intrinsic conductivity of sulfur material inhibit their further usage. Thus, many researchers tried to solve these issues through deposition processes. According to this viewpoint, different chemical and physical methods have been introduced for anode, cathode, or separators of lithium–sulfur batteries. In this review article, it has been tried to interpret the role of various chemical and physical methods with a focus on the merits and demerits of each procedure to investigate their effects on Li–S battery performance during the last decade to predict the best method for further application of lithium–sulfur batteries. Additionally, since machine learning has been spread over the last few years, it has been tried to interpret the role of this methodology in predicting and investigating the mechanisms of these batteries.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938730","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}
{"title":"Porous Carbon-Coated Fe-Doped MnO as High-Performance Cathode for Aqueous Zinc Ion Batteries","authors":"Guangxing Pan, Zhenyuan Wang, Jichuan Zhang, Miaomiao Cao, Ling Zhang, Jiaheng Zhang","doi":"10.1002/ente.202401690","DOIUrl":"https://doi.org/10.1002/ente.202401690","url":null,"abstract":"<p>Ion doping is a feasible approach to enhance the stability and cycling performance of manganese-based materials. However, limited research has been conducted on Fe-doped manganese-based oxides. The present study represents the first successful synthesis of a composite material, namely porous carbon-coated Fe-doped MnO (Fe-MnO/C), achieved through annealing FeMn-based metal-organic frameworks. The electrochemical performance is enhanced by Fe doping, as the presence of Mn<span></span>O<span></span>Fe bonds facilitates charge transfer and mitigates structural collapse, thereby resulting in improved rate capability and cycling stability. The Fe-MnO/C-3 cathode achieves a maximum energy density of 249.6 Wh kg<sup>−1</sup> at a power density of 130.6 W kg<sup>−1</sup> and demonstrates a high specific capacity of 134 mAh g<sup>−1</sup> even after undergoing 800 cycles at 1.0 A g<sup>−1</sup>. The study presents a cost-effective and convenient approach to fabricate a high-performance cathode for aqueous zinc-ion batteries.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793893","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}
{"title":"Investigating the Impact of Copper and Zinc Doping in High-Entropy Prussian Blue Analogues for Na-Ion Batteries: From Material Analysis to Device Fabrication","authors":"Pappu Naskar, Pallav Mondal, Biplab Biswas, Sourav Laha, Anjan Banerjee","doi":"10.1002/ente.202401733","DOIUrl":"https://doi.org/10.1002/ente.202401733","url":null,"abstract":"<p>High-entropy Prussian blue analogues (HE-PBAs) show great promise as active materials in Na-ion batteries, particularly due to their multimetallic synergism that enhances electrochemical performance. This study explores two HE-PBAs: Na<sub>2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Cu<sub>0.2</sub>Fe(CN)<sub>6</sub> (HE-PBA-1) and Na<sub>2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Zn<sub>0.2</sub>Fe(CN)<sub>6</sub> (HE-PBA-2). Both crystallize in monoclinic (<i>P</i>2<sub>1</sub><i>/n</i>) symmetry, but HE-PBA-1, with Cu, exhibits a lower bandgap, lower Na-ion diffusion barrier, higher [Fe(CN)<sub>6</sub>] vacancy, and smaller particle size compared to HE-PBA-2 with Zn. These factors result in higher power capability for HE-PBA-1 due to its enhanced electronic conductivity and Na-ion diffusivity. Additionally, its higher [Fe(CN)<sub>6</sub>] vacancy and smaller particle size offer more electrochemical active sites, improving energy characteristics. A Na-ion full cell with HE-PBA-1 as the positive electrode and a mixed-metallic sodium–copper–iron oxide (NaCuFe-Oxide) as the negative electrode in a hydrogel electrolyte is assembled. It achieves a specific capacity of 94 mAh g<sup>−1</sup> at 100 mA g<sup>−1</sup>, an energy density of 70 Wh kg<sup>−1</sup> at 74 W kg<sup>−1</sup>, a power density of 375 W kg<sup>−1</sup> at 57 Wh kg<sup>−1</sup>, and excellent durability with 89% capacity retention over 500 cycles at 200 mA g<sup>−1</sup> within a 0–2 V window. A 5 V/3 mAh prototype device is tested with a solar charging module to evaluate its real-life feasibility.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939251","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}
Vitor Vlnieska, Severin Siegrist, Pedro O. Q. Ceres, Jakob Heier, Fan Fu, Yaroslav E. Romanyuk
{"title":"Monolithic Interconnection of Thin-Film Perovskite Photovoltaic Modules Using Aerosol Jet Printing","authors":"Vitor Vlnieska, Severin Siegrist, Pedro O. Q. Ceres, Jakob Heier, Fan Fu, Yaroslav E. Romanyuk","doi":"10.1002/ente.202401793","DOIUrl":"https://doi.org/10.1002/ente.202401793","url":null,"abstract":"<p>\u0000Perovskite thin-film photovoltaic (PV) modules consist of multiple cells connected in series to reduce resistive losses in the transparent electrode. Cell interconnection is typically achieved using techniques involving laser scribing and/or precise alignment during fabrication. For perovskite modules, this interconnection is implemented monolithically by integrating three laser scribing steps into the module fabrication process. Laser scribing provides high-resolution lines (≈100–200 μm wide), necessitating equally precise or finer techniques for interconnections. Aerosol jet printing emerges as a promising solution, offering resolutions as fine as 10 μm and enabling high-speed processing. This study demonstrates the fabrication of semi-transparent monolithic perovskite modules using a combination of laser scribing and aerosol jet printing. Five interconnected cells are successfully produced, with the laser scribing process requiring ≈2 min and aerosol jet printing interconnections completed in about 7 min. The resulting perovskite PV modules with aerosol jet-printed interconnects show comparable performance to those fabricated using evaporated interconnections. Key performance metrics included an open-circuit voltage (<i>V</i><sub>OC</sub>) of 4.91 V, short-circuit current density (<i>J</i><sub>SC</sub>) of 2.41 mA cm<sup>−2</sup>, fill factor (FF) of 44.56%, power conversion efficiency of 5.26%, and an effective area of 13.46 cm<sup>2</sup>. These results highlight the potential of aerosol jet printing as an efficient and precise approach for advancing perovskite module fabrication.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202401793","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793939","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}
{"title":"Study on the Performance of Aqueous Aluminum-Ion Battery with Al[TFSI]3 Electrolyte","authors":"Yajie Zhou, Zhaohua Li, Xinwen Chen, Meng Zhang, Yuqi Qian, Xiucong Zhao, Ji Zuo, Mihrab Uddin","doi":"10.1002/ente.202401700","DOIUrl":"https://doi.org/10.1002/ente.202401700","url":null,"abstract":"<p>\u0000Aqueous aluminum-ion batteries have higher energy density and lower cost than traditional rechargeable batteries. Electrolytes play a vital role in aqueous aluminum-ion battery and are directly related to battery performance. However, ionic liquid electrolytes suitable for aluminum are expensive and have potential environmental problems. To improve the energy density and reduce the environmental impact, this study innovatively proposes a new aqueous electrolyte. In this article, a battery preparation and performance testing bench is built to prepare a new aqueous aluminum-ion battery. A novel aqueous aluminum-ion battery is proposed using α-MnO<sub>2</sub> as the positive electrode, eutectic mixture-coated aluminum anode (UTAl) as the negative electrode, and aluminum bistrifluoromethanesulfonate (Al[TFSI]<sub>3</sub>) aqueous solution as the electrolyte. The electrochemical performance of the prepared aqueous aluminum-ion battery is studied under multiple working conditions. The results show that the assembled UTAl/Al[TFSI]<sub>3</sub>/α-MnO<sub>2</sub> battery exhibits an ultrahigh first-cycle specific energy of up to 420 mAh g<sup>−1</sup> at room temperature and a current density of 50 mA g<sup>−1</sup> for 5 mol L<sup>−1</sup> Al[TFSI]<sub>3</sub>. The newly developed battery can achieve a capacity retention rate of 63.4%, a Coulombic efficiency of over 94%, and a stable charge and discharge voltage platform of 1.65 and 1.4 V.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793831","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}
{"title":"Piezoelectric Energy Harvesting: From Fundamentals to Advanced Applications","authors":"Rahul Bhatnagar, Varsha Yadav, Upendra Kumar, Marcos Flores Carrasco","doi":"10.1002/ente.202401455","DOIUrl":"https://doi.org/10.1002/ente.202401455","url":null,"abstract":"<p>\u0000Piezoelectric energy harvesting (PEH) has surfaced as an innovative technology for supplying power to low-power electronic devices by converting mechanical energy into electrical energy. This technology utilizes the piezoelectric effect, in which specific materials produce an electric charge when they experience mechanical stress. Piezoelectric materials can be categorized into three main types: single crystal, composite, and polymeric. Single-crystal materials exhibit elevated piezoelectric coefficients and stability; however, they tend to be costly and fragile. Composite materials integrate piezoelectric ceramics with polymer matrices, enhancing flexibility and lowering costs. Polymeric materials exhibit lightweight, flexible, and biocompatibility characteristics, rendering them ideal for wearable and implantable applications. Although PEH presents considerable promise, it is essential to tackle challenges, including low power output, material constraints, and environmental influences. Future investigations will focus on creating innovative materials that exhibit improved piezoelectric characteristics, refining device architecture for optimal energy conversion, and incorporating piezoelectric harvesting technology into intelligent systems. By addressing these challenges and investigating creative solutions, PEH can significantly advance sustainable and self-powered electronic devices.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793829","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}
Max Bibrack, Andreas Distler, Michael Wagner, Karen Forberich, Christoph Brabec, Hans-Joachim Egelhaaf
{"title":"Silver Electrodes for Organic Solar Cells Printed via Laser-Induced Forward Transfer","authors":"Max Bibrack, Andreas Distler, Michael Wagner, Karen Forberich, Christoph Brabec, Hans-Joachim Egelhaaf","doi":"10.1002/ente.202401815","DOIUrl":"https://doi.org/10.1002/ente.202401815","url":null,"abstract":"<p>Laser-induced forward transfer (LIFT) is presented as a new, contactless, and roll-to-roll compatible method for the deposition of silver top electrodes for organic solar cells (OSCs). Employing a nanosecond laser, highly reflective silver electrodes are printed by LIFT onto OSCs with P3HT:o-IDTBR bulk heterojunction layers. Upon optimization of ink composition, source film thickness, and laser parameters, the resulting organic solar cells reach efficiencies of more than 5%, which are similar to those of reference devices with vapor-deposited silver electrodes.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202401815","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939659","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}
Fangfang Zhao, Ruixian Tang, Liming Yu, Lei Ma, Liangming Wei
{"title":"An Innovative Polydopamine/Polyvinyl Alcohol Binder System for High-Performance Micro-Sized Silicon Anodes","authors":"Fangfang Zhao, Ruixian Tang, Liming Yu, Lei Ma, Liangming Wei","doi":"10.1002/ente.202401591","DOIUrl":"https://doi.org/10.1002/ente.202401591","url":null,"abstract":"<p>Micro-sized silicon (Si) is expected to be widely used in the future lithium-ion battery industry due to its abundant resources, low price, and high energy density. However, the rapid capacity degradation resulting from its significant volume expansion remains a critical challenge. Herein, an innovative binder system for micro-sized Si anodes is presented. Utilizing a high-energy ball milling reaction, Si particles are coated with a thin polydopamine (PDA) layer, forming Si@PDA particles. Subsequently, a polyvinyl alcohol (PVA) binder is incorporated to form the Si@PDA/PVA binder system. The numerous hydroxyl groups in PDA form hydrogen bonds with PVA binder, establishing robust interactions among electrode components, thereby stabilizing the overall structure of the Si anode and maintaining the integrity of its electrical contacts. As a result, the obtained Si@PDA/PVA anode exhibits a high specific capacity of 1215 mAh g<sup>−1</sup> at 0.2 C after 100 cycles. In addition, the rate performance test demonstrates that it delivers a high capacity of over 800 mAh g<sup>−1</sup> at 3 C. This approach provides a promising strategy for the overall design of micro-sized Si electrodes, offering enhanced cyclic performance and durability.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793770","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}
Selin Gümrükçü, Ekrem Kaplan, Melih Beşir Arvas, Nilüfer Koçyiğit, Mukaddes Özçeşmeci, Yücel Şahin, İbrahim Özçeşmeci
{"title":"Palladium (II)-NNN Pincer Complex Embedded Carbon Felt Electrode for High-Performance Symmetrical Supercapacitor Applications","authors":"Selin Gümrükçü, Ekrem Kaplan, Melih Beşir Arvas, Nilüfer Koçyiğit, Mukaddes Özçeşmeci, Yücel Şahin, İbrahim Özçeşmeci","doi":"10.1002/ente.202400915","DOIUrl":"https://doi.org/10.1002/ente.202400915","url":null,"abstract":"<p>Pincer-type ligands are coated on the carbon felt (CF) surface in one step via the electrodeposition method, and their use as supercapacitor electrode materials is reported for the first time in this research study. Raman spectroscopy, X-ray diffraction, scanning electron microscopy-energy dispersive X-ray analysis and mapping, and X-ray photoelectron spectroscopy are used to characterize the bis(pyridyl) iminoisoindoline (BPI) derivates/CF electrodes. The galvanostatic charge–discharge study indicates that the calculated specific capacitance (<i>C</i><sub>s</sub>) of the PdBPI/CF electrode is 271.2 F g<sup>−1</sup> at 1.0 mA current. The symmetrical supercapacitor has a high capacitance retention of up to 80.6% after 10 000 cycles, showing extended cycle life and strong electrochemical stability. The highest energy and power density values obtained for the PdBPI/CF symmetric supercapacitor are calculated to be 25.9 Wh kg<sup>−1</sup> and 981.8 W kg<sup>−1</sup>, respectively.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939213","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}