Biao Zhang, Yue Zhang, Yakun Tang, Wenjie Ma, Sen Dong, Lang Liu, Siqi Yan, Yuliang Cao
{"title":"Uniformly Dispersed Ultrasmall Fe(Co)Ni Alloy Nanoparticles Embedded in Thin-Walled Carbon Nanotubes as High-Performance Anode Materials for Lithium-Ion Battery","authors":"Biao Zhang, Yue Zhang, Yakun Tang, Wenjie Ma, Sen Dong, Lang Liu, Siqi Yan, Yuliang Cao","doi":"10.1002/ente.202400775","DOIUrl":"10.1002/ente.202400775","url":null,"abstract":"<p>\u0000Fe-group nanoalloys are one of the most promising next-generation anodes for lithium-ion batteries (LIBs) due to their low cost, high capacity, excellent electrical conductivity, and lithium-storage capability. However, the difficulties in constructing nanostructures and the tendency for alloy nanoparticles to agglomerate limit their practical application. Herein, a hybrid embedding structure with microporosity–mesoporosity is constructed by using thin-walled carbon nanotubes (CNT) as the support. Within this structure, ultrasmall FeNi/CoNi alloy nanoparticles (10 nm) are uniformly embedded into the walls of thin-walled CNTs (FNNT/CNNT). Benefit from this hybrid structure is that the agglomeration of FNNT/CNNT is effectively suppressed, leading to excellent cycling stability and high capacity (596.6 mA h g<sup>−1</sup> for FNNT and 557.1 mA h g<sup>−1</sup> for CNNT after 300 cycles at 1 A g<sup>−1</sup>) as anodes for LIBs. In the present method, a reference can be provided for the preparation of metal alloy/carbon nanocomposites.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613469","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":"Exploring Multi-Level ETL and HTL Configurations for High-Efficiency Lead-Free Cs2AgBiBr6 Double Perovskite Solar Cells: A Design and Simulation Study","authors":"Vipul Vaibhav Mishra, Anuj Kumar Sharma, Gaurav Siddharth, Vivek Garg, Brajendra Singh Sengar","doi":"10.1002/ente.202400578","DOIUrl":"10.1002/ente.202400578","url":null,"abstract":"<p>Cs<sub>2</sub>AgBiBr<sub>6</sub> is a promising lead-free double perovskite solar cells (PSCs) material. Its full potential has yet to be realized due to issues with its large band gap and the optimization of the alignment of the electron transport layer (ETL) and hole transport layer (HTL). The photovoltaic performance of Cs<sub>2</sub>AgBiBr<sub>6</sub>-based devices has been optimized using ZnO, IGZO, TiO<sub>2</sub>, WS<sub>2</sub>, PCBM, and C<sub>60</sub> ETLs and Cu<sub>2</sub>O, CuScN, CuSbS<sub>2</sub>, NiO, P3HT, PEDOT: PSS, Spiro MeOTAD, CuI, CuO, V<sub>2</sub>O<sub>5</sub>, CBTS, and CFTS HTLs. It has been observed by simulation study that Cs<sub>2</sub>AgBiBr<sub>6</sub>-based devices exhibit remarkably high photoconversion efficiency when combined with certain ETLs. To better understand the performance, we examine how the best device structures are affected by the absorber and ETL thickness, ETL carrier density, series and shunt resistance, generation, and recombination rate. The findings suggest that TiO<sub>2</sub> and ZnO ETLs, in conjunction with CBTS HTL, exhibit good potential for producing high-efficiency (η > 13%) Cs<sub>2</sub>AgBiBr<sub>6</sub>-based heterojunction solar cells with an ITO/ETL/Cs<sub>2</sub>AgBiBr<sub>6</sub>/CBTS/Au device structure. Optimization of the valence band offset (VBO) at the CBTS/Cs<sub>2</sub>AgBiBr<sub>6</sub> interface reveals that reduced VBO value has a beneficial impact on the performance of the solar cell. This modeling work gives a prospective route for manufacturing lead-free Cs<sub>2</sub>AgBiBr<sub>6</sub> PSCs.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613481","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":"Optimizing Distribution Systems with Renewable Energy Integration: Hybrid Mud Ring Algorithm-Quantum Neural Network Approach","authors":"Ajitha priyadarsini S, Rajeev D","doi":"10.1002/ente.202301694","DOIUrl":"10.1002/ente.202301694","url":null,"abstract":"<p>A hybrid approach is proposed for optimizing distribution systems (DSs) by integrating clean energy sources, specifically photovoltaic (PV) and wind power (WT). The proposed technique combines the mud ring algorithm (MRA) and quantum neural network (QNN), referred to as the MRA-QNN technique. The primary objective is to minimize power loss and enhance voltage stability. The MRA method generates the control signal of the converter, while the QNN method predicts the control signal based on the MRA output. The effectiveness of the approach is revealed through simulations on standard IEEE 33 bus and 69 bus systems. Implementation in MATLAB shows superior performance compared to existing methods, with lower power loss values. There has been a sustained rise in the system voltage profile (In the WT and PV situations, 0.950. and 93 p.u), as well as a considerable reduction in the active power (AP) losses (to 132.39 kW with PV and 81.23 kW with WT from 362.86 kW). With PV, the entire yearly economic loss is lowered from $158932.68 to just $57996.939, and with WT, it is decreased to $56805.479. With three PVs, the yearly economic loss and active power losses are decreased to 30419.871 $ and 69.449, and 4.27 kW and 1875.930 $, respectively.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613480","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":"Advanced In Situ and Operando Characterization Techniques for Zinc-Ion Batteries","authors":"Kaikai Wang, Dan Luo, Qianyi Ma, Xiaoyong Lai, Lijun He, Zhongwei Chen","doi":"10.1002/ente.202400199","DOIUrl":"10.1002/ente.202400199","url":null,"abstract":"<p>Aqueous zinc-ion batteries (AZIB) are increasingly recognized as a promising next-generation energy storage technology, prized for their affordability and high safety profile. Yet, their widespread adoption is challenged by complex reaction mechanisms and the evolving nature of both the electrode material and interfaces, which remain critical barriers. This review underscores the utility of in situ and operando characterization techniques in AZIB systems, offering invaluable tools for tracking these intricate processes and deepening understanding of energy storage mechanisms. This review presents an extensive overview of cutting-edge in situ and operando methods, emphasizing their crucial role in structural investigations of materials and interfaces during electrochemical processes. This review particularly focuses on the synergistic application of various in situ techniques, delving into the nuances of experimental setups and data interpretation. Finally, it addresses current challenges in the field and proposes potential strategies, aiming to enhance the impact and broaden the application of these techniques for future advancements and mechanistic insights in AZIB research.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141587003","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}
Manuel Ank, Matti Rößle, Thomas Kröger, Alessandro Sommer, Markus Lienkamp
{"title":"Incoming Inspection of Lithium‐Ion Batteries Based on Multi‐cell Testing","authors":"Manuel Ank, Matti Rößle, Thomas Kröger, Alessandro Sommer, Markus Lienkamp","doi":"10.1002/ente.202400494","DOIUrl":"https://doi.org/10.1002/ente.202400494","url":null,"abstract":"Incoming inspections of battery cells prior to module assembly help to ensure the quality of the battery system and prevent the installation of anomalous cells. Depending on the area of application, identifying deviations in the electrical behavior of the battery cells under test can be essential for downstream assembly processes like cell matching and algorithm adaptations of the battery management software. In this work, the use of a multi‐cell testing procedure involving differential voltage analysis, incremental capacity analysis, direct current internal resistance tests, and electrochemical impedance spectroscopy is investigated to reveal differences in cell properties and identify anomalous cells while economizing on the required cell test channels. The results obtained from 20 model‐identical 21700 cylindrical cells from four different batches demonstrate that this methodology can detect material variations, such as differing silicon and graphite content, which are not disclosed by the supplier or indicated in the data sheet. A teardown with elemental analysis of two cells from different batches is carried out as verification. Finally, prospects for potential application scenarios and raw measurement data are provided.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141577510","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}
Ravindra Kumar Bhardwaj, Yuri Mikhlin, David Zitoun
{"title":"Investigation of Polysulfide Adsorption on FeS2 Additive in Sulfur Cathode of Li–S Battery by Ex situ UV–Visible Spectroscopy","authors":"Ravindra Kumar Bhardwaj, Yuri Mikhlin, David Zitoun","doi":"10.1002/ente.202400421","DOIUrl":"10.1002/ente.202400421","url":null,"abstract":"<p>The performance of lithium–sulfur (Li–S) rechargeable batteries is strongly dependent on the entrapment of the higher-order intermediate polysulfides at the sulfur cathode. An attracting way of preventing the polysulfide shuttle is by introducing a polar host which can form a Lewis acid–base complex with polysulfides. Herein, the Li–S battery by incorporating iron sulfides (FeS<sub>2</sub>) as a polar Lewis acid to entrap higher-order polysulfides at the cathode center is investigated. FeS<sub>2</sub>/S cathode demonstrates largely improved retention of capacity compared to C/S cathode (capacity fading per cycle of 0.12% and 0.80% for FeS<sub>2</sub>/S and C/S respectively) and good rate performance in Li–S batteries compared to conventional carbon–sulfur (C/S) cathode. This is attributed to the decrease in polysulfide dissolution and better retention of active sulfur in the cathode during battery cycling which is due to the polar FeS<sub>2</sub> additive that well anchors polysulfides. The effect of FeS<sub>2</sub> in preventing the shuttle mechanism is demonstrated by ex situ UV–vis spectroscopy and ex situ Raman spectroscopy studies.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202400421","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569246","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}
Sankha Subhra Ghosh, Surajit Chattopadhyay, Sujata Banerjee, Arabinda Das
{"title":"Study of Budding Snubber Quality Deterioration in Solid Oxide Fuel Cell‐Fed Inverter Used in Microgrid Energy Conversion","authors":"Sankha Subhra Ghosh, Surajit Chattopadhyay, Sujata Banerjee, Arabinda Das","doi":"10.1002/ente.202400568","DOIUrl":"https://doi.org/10.1002/ente.202400568","url":null,"abstract":"One of the biggest issues today is generating energy in a way that is clean, effective, and environmentally benign. The most crucial part of an integrated grid‐connected system is the grid inverter. Budding snubber quality deterioration in the microgrid (MG) inverters is a very critical issue. Snubbers are essential components in power electronic circuits. Snubbers increase efficiency and reliability while also enhancing circuit performance, enabling greater switching frequencies. Herein, a nascent snubber resistance fault (NSF) detection technique in a three‐phase inverter (3PhI) connected with the solid oxide fuel cell used in MG applications is presented. For fault detection, an investigation is conducted using the fast Fourier transform to the inverter output current signal. The investigation is done on the effect of different percentages of snubber resistance fault in the inverter on the zero‐frequency component, fundamental current component, total harmonic distortion factor, and the subharmonic current components of the inverter current. Depending on the best‐fit parameters, an attempt is made to successfully detect the 3PhI NSF. An algorithm is proposed for NSF detection. Furthermore, this investigation's distinctive contribution and comparative analysis are presented.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569249","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}
Zhihui Wang, Binjian Nie, Qicheng Chen, Yingjin Zhang, Dehao Kong, Nan An, Nan He, Liang Yao
{"title":"Insight into Dynamic Characteristics of Concentrated Solar Power Systems with Calcium Looping Based on ZnO–Na2SO4 Co-Doped CaO Composites","authors":"Zhihui Wang, Binjian Nie, Qicheng Chen, Yingjin Zhang, Dehao Kong, Nan An, Nan He, Liang Yao","doi":"10.1002/ente.202400754","DOIUrl":"10.1002/ente.202400754","url":null,"abstract":"<p>Concentrated solar power (CSP) integrated with calcium looping (CaL) technology has garnered significant interest as a solution to mitigate the issue of intermittency in solar power production. However, the deactivation of CaO-based materials during cycling limits the application of CaL technology on a large scale. Herein, the dynamic characteristics of the CSP-CaL system indirectly integrated with the s–CO<sub>2</sub> Brayton cycle using CaO–ZnO–Na<sub>2</sub>SO<sub>4</sub> composites are studied. Energy analysis shows that the energy storage density varies from 1328.13 to 1232.03 J g<sup>−1</sup>, and its average value increases by 32.0%. Round-trip efficiency of the system varies from 40.0% to 39.5%, and its average value increases by 22.6%. Exergy analysis shows that the co-doping of ZnO and Na<sub>2</sub>SO<sub>4</sub> into CaO enhances the exergy efficiency of the calciner and the heat exchange network, but reduces the exergy efficiency of the carbonator. Exergy round-trip efficiency of the CSP-CaL system has slightly decreased from 44.0% to 43.4%, with an average increase of 22.8%. Techno-economic analysis shows that the levelized cost of electricity for different sizes of CSP-CaL systems using CaO–ZnO–Na<sub>2</sub>SO<sub>4</sub> ranges from 176.44 to 153.70 $ MWh<sup>−1</sup>. Therefore, the CaO–ZnO–Na<sub>2</sub>SO<sub>4</sub> composite shows promising prospects for application in solar thermal power generation.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569247","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":"Mitigation of Volumetric Expansion in Silicon Anodes via Engineered Porosity: Electrochemical Performances and Stress Distribution Implication","authors":"Liang Liu, Yichi Zhang, Naishuo Xue, Yun Wang, Ruishuai Wang, Limei Wang, Jian Liu, Tiansi Wang","doi":"10.1002/ente.202400664","DOIUrl":"10.1002/ente.202400664","url":null,"abstract":"<p>To overcome the significant volume expansion issue encountered by traditional silicon anodes in lithium-ion batteries, this study employs chemical etching techniques to treat aluminum–silicon alloys of various ratios, successfully preparing three types of porous silicon electrode materials with different pore structures. Through a series of electrochemical tests, this article investigates the role of porous silicon structures in improving electrode performance. The results demonstrate that the porous silicon anodes exhibit superior cycle stability and rate capability compared to traditional solid silicon anodes. This confirms the effectiveness of the porous structure in mitigating the significant volume expansion during the charge and discharge process of silicon materials and in preventing premature electrode failure, thereby significantly enhancing the electrode's cycle life. Remarkably, the porous silicon with a high porosity rate shows exceptionally outstanding performance. Additionally, using computer simulations, this study also models the impact of changes in pore size within the porous silicon material at different states of charge and discharge on the stress distribution at the particle center and surface. These experimental and simulation results jointly provide strong empirical evidence for applying porous silicon materials as high-performance anode materials for lithium-ion batteries and offer essential guidance for future stress analysis and electrode design of porous silicon electrode materials.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546777","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":"Economic Evaluation of Using Ultracapacitors in Electric Vehicles","authors":"Hossein Rezaei, Seyed Ehsan Abdollahi, Seyedreza Abdollahi, Shaahin Filizadeh","doi":"10.1002/ente.202400395","DOIUrl":"https://doi.org/10.1002/ente.202400395","url":null,"abstract":"The main challenge of hybridizing ultracapacitors (UCs) with batteries in electric vehicles is their uncertain economic viability, besides their complexity and weight, which should be fully addressed. Therefore, this article determines the general condition for achieving a justified economic system, which is held when the average annual cost (AAC) of a battery‐UC system over a vehicle's useful life is lower than the annual cost of a sole‐battery for a specific system design, energy management strategy, vehicle type, and driving style. As such, the energy storage system is designed in a case study vehicle, and the optimal current distribution is found by dynamic programming (DP) under UDDS, HWFET, and US06 driving cycles. Then, by economic analysis, it is indicated that although adding an UC incurs additional costs, it saves the AAC by improving the battery health and prolonging its lifespan up to a maximum of 15‐year calendar life, which proves its economic justification. Investing in UCs is more economically viable for vehicles with severe driving cycles and high current stress. Finally, the DP optimal trajectory is implemented into an experimental setup under the US06 driving cycle to verify the evaluated strategy.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546800","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}