Energy Storage最新文献

{"title":"Low-Temperature Solar Thermal Energy Storage Using LaNi5−xMx (M = Al, Fe, Ga, and Zn) Alloys","authors":"K. Sarath Babu,&nbsp;Dinesh Dashbabu,&nbsp;E. Anil Kumar","doi":"10.1002/est2.70113","DOIUrl":"https://doi.org/10.1002/est2.70113","url":null,"abstract":"<div>\u0000 \u0000 <p>Lanthanum based alloys are used in this current work to store the low temperature (less than 120°C) thermal energy, as they absorb and desorb hydrogen gas reversibly. LaNi_5−xM_x (<i>M</i> = Al, Fe, Ga, and Zn) alloys are compared at constant energy storage and recovery temperatures based on their absorption characteristics. A comparison is made between a Simple Absorption System (SAS), a Compressor Operated Absorption system (CAS), and a Cascade Resorption System (CRS) to store thermal energy at low temperatures. van't Hoff relation is used to estimate the lowest temperature to store energy and the maximum temperature to extract it. The energy was successfully upgraded by CAS and CRS. For various La-based alloys, the three systems' performances were thermodynamically examined and compared. A maximum COP of 0.86 and 0.74 is obtained in a simple absorption and compressor operated absorption system, respectively, using LaNi_4.75Fe_0.25 due to low hysteresis. Maximum heat upgradation with the Al, Fe, Ga, and Zn substitution is reported as 50°C, 20°C, 48°C, and 60°C, respectively, at a compressor ratio of 5 with CAS. The CRS with same substitution gives the highest heat upgradation of 66°C, 43°C, 88°C, and 107°C at regeneration temperature of 120°C respectively.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of PPy/rGO/NiCoFe2O4 Ternary Composite and rGO/NiCoFe2O4 Binary Composite Hybrid Materials for the Fabrication of Flexible Carbon Cloth Electrodes for Supercapacitors","authors":"Ansari Novman Nabeel,&nbsp;Alok Jain,&nbsp;Talal Alharbi,&nbsp;Akbar Ahmad,&nbsp;Dilawar Husain,&nbsp;Sajid Naeem","doi":"10.1002/est2.70105","DOIUrl":"https://doi.org/10.1002/est2.70105","url":null,"abstract":"<div>\u0000 \u0000 <p>This study presents a simple, scalable approach for synthesizing binary and ternary composites tailored for electrode materials, with a focus on supercapacitor applications. The composites were fabricated by integrating reduced graphene oxide (rGO) with NiCoFe₂O₄ metal oxides and the conductive polymer polypyrrole (PPy). The significance of this work lies in the development of supercapacitors, which are highly valued for their superior energy density, fast charge and discharge rates, prolonged life cycle, and cost-effectiveness. The binary composite, rGO/NiCoFe₂O₄, was synthesized using a sol–gel auto-combustion method, with carbon cloth serving as the electrode substrate for electrochemical testing. Electrochemical analysis showed that the rGO/NiCoFe₂O₄ binary composite exhibited a specific capacitance of 154 F/g at a scan rate of 10 mV/s. The addition of PPy resulted in the formation of the ternary composite, PPy/rGO/NiCoFe₂O₄, which demonstrated a markedly improved specific capacitance of 210 F/g under the same conditions, underscoring the synergistic effect of PPy. Furthermore, galvanostatic charge–discharge (GCD) analysis revealed specific capacitance values of 222.5 F/g at 1 A/g and 145 F/g at 2 A/g for the ternary composite, compared to 157.1 F/g and 110 F/g for the binary composite. The findings of this investigation emphasize the significant potential of the PPy/rGO/NiCoFe₂O₄ composite for the development of high-performance supercapacitors, leveraging the combined benefits of rGO, NiCoFe₂O₄, and PPy for superior energy storage capabilities.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of Optimal Shape for Gas Storage Salt Caverns","authors":"Mehdi Noroozi,&nbsp;Ali Rezaei,&nbsp;Hadi Fathipour-Azar","doi":"10.1002/est2.70109","DOIUrl":"https://doi.org/10.1002/est2.70109","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, the optimal shape for a gas storage cavern was determined by considering the elements that affect its stability and convergence. The considered factors influencing the stability of caverns include the bulk modulus of salt rock, ambient temperature, internal gas pressure, cavern depth, and cavern shape. By varying these parameters and creating various combinations, 45 scenarios were defined. Numerical models were constructed for each scenario to systematically investigate the factors affecting cavern stability. Through a comparison of the results from these numerical models, the most stable cavern shape under different conditions was determined. The study focuses on the pre-salt environments in the Santos Basin, southeast Brazil. The findings of this study may aid in the construction of gas storage salt caverns. The results indicate that the cavern's size and geometry have a greater effect on its volume loss in salt layers with a lower bulk modulus (between 5 and 15 GPa). Additionally, when the bulk modulus is low, the rate of change of the cavern convergence to the bulk modulus is larger. Moreover, the effects of the rock salt characteristics on the cavern convergence are much less pronounced at larger depths, so a depth of 1200 m can be ignored. In comparison to the bulk modulus of salt rock, internal gas pressure has a far greater effect on the convergence of salt caverns. At shallow depths, the salt creep phenomena primarily affect the cavern's roof area, and as the depth of the cavern deepens, it increasingly damages the floor and middle walls. When precise control of the gas pressure in proportion to the cavern depth is not attainable, the optimal form for designing gas storage salt caverns with varying depths based on the minimal convergence criterion is a horizontal ellipsoid. In contrast, the vertical ellipsoidal cavern always results in the greatest volume loss and displacement and is hence regarded as the least acceptable alternative. A downward pear-shaped cavern can be a good alternative to a horizontal ellipsoidal cavern for higher depths. The design and construction of the downward pear-shaped cavern instead of the upward pear-shaped cavern leads to better control and the reduction of the displacements.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive Study of PAN-NaBF4 Solid Polymer Electrolytes: Insights Into Optical, Structural, Thermal, Electrical, and Electrochemical Properties for Sodium-Ion Batteries","authors":"Mekala Venkanna,&nbsp;Pramod K. Singh,&nbsp;Hussein K. H. Rasheed,&nbsp;Aseel A. Kareem,&nbsp;Shufeng Song,&nbsp;Serguei V. Savilov,&nbsp;Anji Reddy Polu","doi":"10.1002/est2.70103","DOIUrl":"https://doi.org/10.1002/est2.70103","url":null,"abstract":"<div>\u0000 \u0000 <p>This research explores the use of solid polymer electrolytes (SPEs) as a conductive medium for sodium ions in sodium-ion batteries, presenting a possible alternative to traditional lithium-ion battery technology. The researchers prepare SPEs with varying molecular weight ratios of polyacrylonitrile (PAN) and sodium tetrafluoroborate (NaBF₄) using a solution casting method with dimethyl formamide as the solvent. Through optical absorbance measurements, we identified the PAN:NaBF₄ (80:20) SPE composition as having the lowest energy band gap value (4.48 eV). This composition also exhibits high thermal stability based on thermogravimetric analysis results. Electrochemical impedance spectroscopy reveals an ionic conductivity of 1.02 × 10⁻⁴ S cm⁻¹ for the PAN:NaBF₄ (80:20) blend at ambient temperature. Additionally, linear sweep voltammetry demonstrates its good electrochemical stability up to 3.22 V. We assemble a primary sodium-ion battery using the optimal SPE composition (Na/(PAN + NaBF₄)/(I₂ + C + electrolyte)). This battery achieves an open-circuit voltage of 2.83 V and displays promising discharge performance.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"6 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat Transfer Optimization of a Metal Hydride Tank Targeted to Improve Hydrogen Storage Performance","authors":"Nadhir Lebaal,&nbsp;Djafar Chabane,&nbsp;Alaeddine Zereg,&nbsp;Noureddine Fenineche","doi":"10.1002/est2.70099","DOIUrl":"https://doi.org/10.1002/est2.70099","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, the optimization of heat transfer in a metal hydride hydrogen tank to maximize hydrogen storage was investigated. A finite element model of a quarter tank was developed in COMSOL Multiphysics with parameterized geometry. The main objectives were to maximize stored hydrogen mass and minimize tank filling time while maintaining temperature uniformity within the tank. A design of experiments (DOE) approach was used with key geometrical parameters. Compared to the base case, the hydrogen stored mass increased from 0.26 to 0.46 kg, and the tank filling time reduced from over 1100 to 450 s. The optimal design (Design point 15) resulted in an absorbed hydrogen mass of 0.4624 kg, with a charging time of 450 s, showing the most balanced performance in terms of maximizing storage while minimizing filling time and better heat dissipation. This demonstrates the potential of optimizing heat transfer to significantly improve metal hydride hydrogen storage performance. The model can be further improved by exploring different cooling designs and materials.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"6 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Search Survive Optimization Based Deep Incorporated Model for Electric Vehicle Battery Fault Detection","authors":"Shashank Kumar Jha,&nbsp;Sumit Kumar Jha,&nbsp;Bishnu Mohan Jha","doi":"10.1002/est2.70073","DOIUrl":"https://doi.org/10.1002/est2.70073","url":null,"abstract":"<div>\u0000 \u0000 <p>With the progressive switching from a conventional transportation system to an intelligent transportation system (ITS), the eco-friendly alternative is made possible in metro cities. Moreover, electric vehicles (EVs) gained more attention due to their low charging costs, low energy consumption, and reduced greenhouse gas emissions. However, a single failure or malfunction in an EV's intrinsic components due to poor charging infrastructure can bring about a high tendency of fault occurrence that needs to be diagnosed earlier for efficient safety management. In addition, ensuring the safety and reliability of these EV batteries remains a critical challenge that underscores the importance of an efficient battery fault detection system, pivotal in enhancing battery safety and lifespan. Hence, the research centers on developing a well-structured battery fault detection model leveraging a Search- Survive optimization (SSO) based deep incorporated model. This incorporated model combines Deep Convolutional Neural Network (Deep CNN), Deep Bidirectional Long-Short Term Memory (Deep BiLSTM), and Deep Belief Network (DBN) that assists in extracting the hierarchical representations and the spatial–temporal features associated with the various EV faults. The deep incorporated model is optimized with SSO that aids the model to perform enhanced battery fault detection of EVs. Performance assessment relies on key parameters like accuracy, sensitivity, and specificity, based on the NASA battery dataset. Impressively, the SSO-based Deep Incorporated model attains an accuracy of 96.00%, sensitivity of 96.29%, and specificity of 95.72 for 80% of training. With k-fold 10 validation, the proposed model attained the metric values of 96.31%, 97.29%, and 95.32% respectively using the NASA dataset and surpassed other existing techniques.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"6 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polyaniline/Reduced Graphene Oxide/Zinc Oxide Hybrid Electrodes Fabricate by Combining Electrospinning/Electrospray Technique for Supercapacitors","authors":"Shilpa Simon,&nbsp;P. B. Sreeja","doi":"10.1002/est2.70101","DOIUrl":"https://doi.org/10.1002/est2.70101","url":null,"abstract":"<div>\u0000 \u0000 <p>This study presents the successful synthesis and characterization of polyaniline (PANI), PANI/reduced graphene oxide PANI/rGO (PR), and PANI/rGO/ZnO (PRZ) nanocomposites as electrode materials for supercapacitors. Employing electrospinning and electrospraying techniques, we developed nanofibrous composites with enhanced structural and electrochemical properties. The addition of rGO and ZnO in the PRZ composite significantly improved specific capacitance, stability, and charge-transfer efficiency. Electrochemical analyses, including cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS), revealed a peak specific capacitance of 845 F g⁻¹ at 0.5 A g⁻¹ for PRZ, outperforming PR (395 F g⁻¹), and PANI (140 F g⁻¹). These enhancements are attributed to the synergistic effects of carbon-based and pseudocapacitive components, resulting in higher conductivity, improved redox activity, and reduced internal resistance. Additionally, the PRZ composite exhibited excellent cyclic stability, retaining 89% of its capacitance over 5000 cycles, underscoring its durability and suitability for long-term energy storage applications.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"6 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Parametric Investigation to Assess the Charging and Discharging Time for a Latent Heat Storage Material-Based Thermal Energy Storage System for Concentrated Solar Power Plants","authors":"Ramesh Rudrapati,&nbsp;Santosh Chavan,&nbsp;Sung Chul Kim","doi":"10.1002/est2.70102","DOIUrl":"https://doi.org/10.1002/est2.70102","url":null,"abstract":"<div>\u0000 \u0000 <p>Thermal energy storage (TES) systems are becoming increasingly crucial as viable alternatives for effective energy utilization from various sources, such as solar power plants and waste heat from different industrial sectors. The present work focuses on latent heat TES system optimization for solar thermal power plant applications. This study aims to assess the impact of different thermal processing factors on the efficiency of TES systems. Parametric analysis determines a TES system's charging and discharging durations that use latent heat storage material. Thermal processing conditions were selected as input parameters, such as the heat transfer fluid inlet temperature, flow rate, and number of phase change material (PCM) capsules. Experiments were planned to use the L₉ orthogonal array of the Taguchi method, and response measures, such as charging time (CT) and discharging time (DT), were monitored. A signal-to-noise ratio analysis was used to evaluate the significance of the thermal processing parameters on the response measures. Response surface methodology (RSM) postulates the mathematical relationships between process conditions and responses. Finally, the multi-objective Jaya optimization algorithm (MOJOA) was used to optimize the parametric combination to minimize CT and maximize DT simultaneously. A heat transfer fluid inlet temperature of 65°C, flow rate of 2 L/min, and 40 PCM capsules were determined as the optimal parametric conditions by MOJOA for predicting the combined CT and DT. The verification test results substantiate the enhanced responses of the latent heat TES system, specifically in the CT and DT. Utilizing the integrated Taguchi method, RSM-MOJOA is advantageous for examining, modeling, and predicting PCM-based TES systems.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"6 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Thermoelectric Performance of La1.98Sr0.02Cu0.94Co0.06O4 by Multiwalled Carbon Nanotubes Addition","authors":"Mohd Saif,&nbsp;D. Tripathi","doi":"10.1002/est2.70098","DOIUrl":"https://doi.org/10.1002/est2.70098","url":null,"abstract":"<div>\u0000 \u0000 <p>Effect of multiwalled carbon nanotubes (MWCNTs) addition on thermoelectric properties of polycrystalline LSCCO (La_1.98Sr_0.02Cu_0.94Co_0.06O₄) has been examined. The samples have been synthesized via the solid-state reaction technique. Micro-structural and surface morphology of the synthesized pellets have been investigated using X-ray diffraction and Field Emission Scanning Electron Microscopy, respectively. The electrical resistivity and Seebeck coefficient of investigated pellets have been measured using a custom-built apparatus between 300 and 450 K. Nevertheless, the transient heat transfer technique has been adopted for thermal conductivity measurement. The addition of MWCNTs significantly enhances the electrical conductivity and reduces the thermal conductivity of LSCCO. This results in a remarkable improvement in the figure of merit in spite of the reduction in Seebeck coefficient with MWCNTs addition. The maximum ZT value ~0.07 is achieved at 323 K for 0.05 wt% MWCNTs-loaded LSCCO, which is ~28 times that of pristine LSCCO. The enhanced thermoelectric performance is attributed to the increased carrier concentration, reduced grain size, and improved interface phonon scattering due to MWCNTs addition. Our results demonstrate the potential of MWCNTs as an effective additive to enhance the thermoelectric properties of LSCCO-based materials.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"6 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A System to Store Waste Heat as Liquid Hydrogen Assisted by Organic Rankine Cycle, Proton Exchange Membrane Electrolyzer, and Mixed Refrigerant Hydrogen Liquefaction Cycle","authors":"Abolfazl Nikzad,&nbsp;Mostafa Mafi,&nbsp;Saman Faramarzi","doi":"10.1002/est2.70064","DOIUrl":"https://doi.org/10.1002/est2.70064","url":null,"abstract":"<div>\u0000 \u0000 <p>This study proposes a system to store waste heat as liquid hydrogen using a proton exchange membrane electrolyzer (PEME) and a mixed refrigerant hydrogen liquefaction cycle. The novelty of this study lies in proposing a waste heat recovery system that stores electricity as liquid hydrogen, consuming less power due to the improved exergy efficiency of the components. The proposed system is analyzed to achieve better efficiency in terms of thermal and exergy efficiencies. Waste heat is used to generate power by an organic Rankin cycle (ORC), produced electricity is utilized in the PEME unit and compressors of liquefaction cycle to produce and liquefy hydrogen, respectively. Codes are written in EES software to simulate the system. Thermodynamic analysis is done in order to achieve better thermal efficiency for the proposed model. Membrane potential at different values of current density is calculated and compared with validate the simulated model. The exergy efficiency of the liquid hydrogen production process is 57%. The exergy efficiency, rate of power produced in ORC, and rate of hydrogen production by the electrolyzer increase significantly by increasing the isentropic efficiency of the turbine. At a temperature of 340 K for the evaporator, the thermal efficiency of ORC is obtained at 8.5%, which is approximately 3% higher compared with that of the previous similar process.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"6 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}