Energy Storage最新文献

{"title":"Experimental Investigation of Ice-Slurry Based Cold-Storage System for Farm Packhouses","authors":"Amarthya Eshwar Mulastam,&nbsp;Abhishek Gautam,&nbsp;Malhar Malushte,&nbsp;Vishal Singhal,&nbsp;Anish Modi,&nbsp;Shankar Krishnan","doi":"10.1002/est2.70228","DOIUrl":"https://doi.org/10.1002/est2.70228","url":null,"abstract":"<div>\u0000 \u0000 <p>An ice slurry-based cold storage unit is a promising option for the on-farm packhouses. However, it is associated with a few challenges, such as low energy efficiency and high maintenance costs. Given this, the present study explores the surface-scraped method for ice slurry generation and makes the system viable for on-farm cold storage applications. In the present work, experiments are carried out for scraper speed, propylene glycol (PG)-water solution flow rate, PG concentration in solution, and storage volume within the range of 15 to 40 RPM, 0.1–0.5 m³/h, 5%–15%, 8 and 12 L, respectively. Moreover, experiments are also performed outdoors powered by solar photovoltaic (PV) modules to compare the results with those from the indoor experiments. The identified optimal scraper speed and PG-water flow rate values are 35 RPM and 0.3 m³/h, respectively. The optimal balance between the PG concentration and storage volume is recommended to capture the maximum amount of thermal energy for a fixed charging period, which is crucial in solar PV-based systems due to limited daylight availability. These findings enhance the understanding of ice slurry generation under varying conditions.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144647106","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":"Improvement of the Performance of Solar Underfloor Heating System Integrated With Phase Change Material","authors":"Omar Mohammed Hamdoon,&nbsp;Ziad M. Almakhyoul,&nbsp;Omar Rafae Alomar,&nbsp;Sara Q. Khalil","doi":"10.1002/est2.70227","DOIUrl":"https://doi.org/10.1002/est2.70227","url":null,"abstract":"<div>\u0000 \u0000 <p>This theoretical study presents a detailed analysis of a solar-assisted underfloor heating system integrated with a phase change material (PCM) model—Type 1991, applied to the internal wall of a residential building. The objective is to evaluate the thermal and energy performance improvements achieved through PCM integration as compared to traditional systems. To determine the most efficient setup, the simulations are performed using TRNSYS software under various system configurations by adjusting the solar collector area and storage tank volume. The proposed system consists of a flat-plate solar collector, a thermal storage tank, an auxiliary electric heater, and a multizone building fitted with underfloor heating pipes and PCM-treated walls. The PCM model accounts for temperature-dependent thermal properties including specific heat and thermal conductivity, allowing it to absorb and release latent heat and thereby regulate indoor thermal conditions. Simulations are done based on a 100 m² house in Mosul, Iraq using the data of December, January, and February, revealing that the optimal collector area is 24 m², beyond which further increases provide only minimal energy savings. The addition of PCM leads to an increase in indoor air temperatures by 2°C–3°C and hence, improves thermal comfort during cold periods. The results displayed that there is a 30% average reduction in electrical energy consumption. The use of PCM on the floor leads to a reduction in the useful solar collector energy by 15%. The overall solar fraction is increased and thereby, reduces the dependency on external electricity sources. The findings demonstrated that the use of PCM enhances both energy efficiency and thermal comfort, making it a viable approach for sustainable heating in residential buildings.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144647105","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":"Grid Unified Solar System With Composite Energy Storage for Green Computing Utilization","authors":"Nabadeep Patra,&nbsp;Aditi Chatterjee,&nbsp;Kanungo Barada Mohanty,&nbsp;Stutee Patra","doi":"10.1002/est2.70226","DOIUrl":"https://doi.org/10.1002/est2.70226","url":null,"abstract":"<div>\u0000 \u0000 <p>In this research paper a solar PV system unified with the grid and integrated with composite energy storage is presented. Driving the data centre loads from power generated by renewables is one of the green computing practices which can effectively reduce carbon footprints. However, the grid unified solar PV-based power generator is susceptible to load voltage fluctuations and harmonic contamination in the injected grid current. Incorporation of composite energy storage with the power generator can alleviate the load voltage fluctuation due to changes in irradiance or during peaking loads. Combination of both battery and supercapacitor can provide adequate power and energy density to cater to this requirement. The focus of the research effort is to develop an effective power management strategy to regulate the power trade between the solar PV generator, energy storage devices, load, and the grid. The objective of the proposed strategy is to sustain fixed voltage across the data centre loads in case of changes in solar insolation level and also mitigate the injected grid current harmonics. The proposed model with the control scheme is validated by simulation as well as hardware-in-loop simulation results employing real-time digital simulator.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144647107","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":"Porous Carbon Derived From Food Waste for Asymmetric Supercapacitor","authors":"Khang Huynh,&nbsp;Isamu Umeda,&nbsp;Bharath Maddipudi,&nbsp;Anuradha Shende,&nbsp;Sandeep Kumar,&nbsp;Rajesh Shende","doi":"10.1002/est2.70230","DOIUrl":"https://doi.org/10.1002/est2.70230","url":null,"abstract":"<div>\u0000 \u0000 <p>Globally, by 2030, it is estimated that about 2 billion tons of food waste will be generated. This will not only cause economic losses but will also lead to serious environmental issues such as the emission of greenhouse gases (GHGs), bad odor, and land pollution due to the decomposition of food waste in an open environment and landfills. It is imperative to develop novel solutions to reduce food waste and perhaps valorize it into a valuable product, thereby reducing its environmental and economic impacts. Food waste can be considered a renewable and sustainable feedstock that can be used for chemical and biological processing for its valorization. In this investigation, hydrochar is derived from the hydrothermal carbonization (HTC) of food waste and subjected to chemical activation with potassium hydroxide (KOH), followed by thermal treatment at 800°C to produce porous carbon (POC). As-prepared POC is thoroughly characterized by Brunauer–Emmett–Teller (BET) surface area analyzer, Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX), and transmission electron microscopy (TEM). A specific capacitance of 112 F/g at 0.5 A/g current density is observed for POC in the three-cell standard electrochemical setup while asymmetric supercapacitor (ASC) fabricated with POC and Cu-ferrite electrodes exhibited energy and power densities of 29 Wh/kg and 1.36 kW/kg, respectively. Preliminary cost analysis shows a significantly lower cost for the POC derived from food waste than for a few other biomass feedstocks.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144647104","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":"Ion Conduction Mechanism and Super Capacitor Performance of Polymer Electrolyte Incorporated With Ionic Liquid","authors":"Ibrahim Zakariya'u,&nbsp;Sehrish Nasir,&nbsp;Neelam Rawat,&nbsp;Shubham Kathuria,&nbsp;Markus Diantor,&nbsp;I. M. Noor,&nbsp;Pramod Kumar Singh","doi":"10.1002/est2.70223","DOIUrl":"https://doi.org/10.1002/est2.70223","url":null,"abstract":"<div>\u0000 \u0000 <p>In the present work, highly conducting polymer electrolyte films are prepared by integrating Polyvinyl-pyrrolidone (PVP) with sodium iodide (NaI) salt. To further improve performance, different concentrations of an ionic liquid, 1-ethyl-3-methylimidazolium thiocyanate, were added to the optimized polymer matrix containing salt through the solution casting method. Experiments with complex impedance spectroscopy identified conductivity, and the electrochemical stability window was measured using linear sweep voltammetry. The number of charge carriers (<i>T</i>_ion) is studied using Wagner's DC polarization method. A notable increase in conductivity was recorded after the addition of the ionic liquid to the maximum conductive polymer-salt system. Fourier transform infrared (FTIR) spectroscopy validated the composite structure and the complexation within the matrix. Additionally, polarized optical microscopy indicated a decrease in crystallinity and an increase in amorphous content because of interaction with both the salt and the ionic liquid. The resulting highly conductive polymer electrolyte, achieved by combining the salt and ionic liquid, and previously reported activated carbon-based electrodes are utilized to fabricate an electrical double-layer capacitor (EDLC). The EDLC cell is further studied using various electrochemical tools such as EIS, CV, and GCD.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144647408","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":"Development of NiS and Biomass-Derived Carbon Spheres Composite for High-Performance Supercapacitor Electrodes","authors":"Mahima Sheoran,&nbsp;Rohit Sharma,&nbsp;Sunil Ojha,&nbsp;Anit Dawar,&nbsp;Om Prakash Sinha","doi":"10.1002/est2.70224","DOIUrl":"https://doi.org/10.1002/est2.70224","url":null,"abstract":"<div>\u0000 \u0000 <p>The development of innovative and efficient energy storage technologies has become a critical concern in modern society due to the ongoing depletion of conventional power reserves and increasing environmental pollution. To address the rising current and future energy demands, it is imperative to implement a “Green” strategy that leverages the numerous accessible energy sources, minimizing environmental impact while deriving value from waste. Consequently, this study reports the synthesis of a nickel sulfide and onion peel-derived carbon sphere composite (NiS/OPCS) through an economical hydrothermal process. The synthesized composite has been optimized using various characterization techniques. Electrochemical performance was optimized through cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS) analyses. The NiS/OPCS composite demonstrated exceptional retention of 95.66% after 6000 cycles, with a significant specific capacitance value of 707 F/g at 1 A/g current density. Both capacitive-controlled and diffusion-controlled mechanisms were found to contribute significantly to charge storage. Therefore, NiS/OPCS is a promising candidate as an electrode material for supercapacitor applications.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624755","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":"EIS Mimicking DC Measurement Technique: A Novel Path for Battery Aging Analysis","authors":"Sabri Hakan Sakallıoğlu,&nbsp;Koray Bahadır Dönmez,&nbsp;Burak Onur","doi":"10.1002/est2.70229","DOIUrl":"https://doi.org/10.1002/est2.70229","url":null,"abstract":"<div>\u0000 \u0000 <p>Electrochemical impedance spectroscopy (EIS), an alternating current (AC) technique, is commonly employed to monitor the aging process of lithium-ion batteries (LIBs). However, its use requires sophisticated electrochemical equipment, which not only complicates battery management systems (BMS) but also raises overall costs. Moreover, analyzing EIS data often requires expert-level interpretation. In this study, we investigated the applicability of various direct current (DC) methods for tracking the total internal resistance (T-IR) during the aging process. We evaluated the accuracy of their potential use in estimating the State of Health (SoH). The performance of these DC methods was compared with classical EIS techniques to identify the most reliable conditions for accurate SoH estimation. Among the techniques explored, one method involved applying a low current to the battery and determining T-IR based on the real-time voltage response, thereby mimicking the EIS approach. This method demonstrated the highest accuracy compared to classical EIS results. Additionally, we evaluated the impact of high-DC pulses on T-IR and analyzed its variation with the state of charge (SoC), comparing these findings with EIS-derived data. Our results indicate that low-DC techniques not only provide reliable T-IR measurements but also offer a cost-effective and simpler alternative for SoH monitoring in BMS and laboratory applications. The EIS-mimicking low-DC approach, in particular, shows promise as a versatile tool for determining the T-IR of electrochemical cells under various operational scenarios.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624754","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":"Waterwheel Plant Algorithm and Capsule Attention Convolutional Neural Networks for Optimal Sizing Framework for Photovoltaic-Battery EV Charging Microgrids","authors":"R. Raja,&nbsp;R. Geetha,&nbsp;Vemana U. P. Lavanya,&nbsp;G. Indumathi","doi":"10.1002/est2.70222","DOIUrl":"https://doi.org/10.1002/est2.70222","url":null,"abstract":"<div>\u0000 \u0000 <p>The increasing use of electric vehicles (EVs) highlights the importance of energy management (EM) and particularly photovoltaic (PV)-battery microgrids (MGs). However, the conventional optimization methodologies are not always capable of striking an optimal balance between cost, energy, and size of the system, considering uncertainties such as the variability of solar resource and the fluctuating demand of charging of EVs. This paper proposes a hybrid method for the optimal sizing framework for PV-battery EV charging MGs. The proposed method is the combined execution of the waterwheel plant algorithm (WWPA) and capsule attention convolutional neural networks (CACNN). Thus, the proposed method is referred to as the WWPA-CACNN approach. The goal of this work is to achieve optimal sizing of PV-battery systems, enhancing energy utilization, cost-efficiency, and grid independence. The WWPA is used to optimize the sizing of PV panels and battery storage to minimize costs and maximize energy utilization in EV charging MGs. The CACNN is used to predict energy generation, storage, and demand, ensuring accurate forecasting and system adaptability. By then, the proposed method is simulated on the MATLAB platform and compared with various existing methods like particle swarm optimization (PSO), artificial neural network (ANN), non-dominated sorting genetic algorithm-II (NSGA-II), modified snake optimization (MSO), and dung beetle optimizer (DBO). The proposed WWPA-CACNN method also has the lowest total lifetime cost of $12 730 and high efficiency of 96%, which underlines its better overall performance to effectively manage PV-battery EV charging MGs at optimal cost.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606460","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":"Remaining Useful Life Prediction of Li-NMC Batteries Using Algorithmic Fusion and Cascading Approach","authors":"Sreejaun Thothaathiri Janaki,&nbsp;Naresh Gnanasekaran,&nbsp;Dinesh Kumar Madheswaran,&nbsp;Praveenkumar Thangavelu,&nbsp;Sivanesan Murugesan","doi":"10.1002/est2.70219","DOIUrl":"https://doi.org/10.1002/est2.70219","url":null,"abstract":"<div>\u0000 \u0000 <p>Lithium-NMC batteries in electric vehicles exhibit complex degradation mechanisms, where capacity fade, internal resistance growth, and discharge behavior evolve nonlinearly under varying operating conditions. Accurate remaining useful life prediction necessitates capturing these intricate interdependencies, which traditional models fail to generalize effectively. This study develops a robust machine-learning framework leveraging experimental cycling data under nominal and over-discharge conditions. Key parameters like voltage, discharge time, internal resistance, and state of health were chosen due to their direct correlation with electrochemical aging, resistive losses, and failure progression, ensuring high sensitivity to degradation dynamics. Support Vector Regression and Bayesian-optimized Lasso Regression were employed to model these dependencies, providing precise predictions of key battery health indicators. A hybrid framework integrating these models for remaining useful life estimation achieved <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msup>\u0000 <mi>R</mi>\u0000 <mn>2</mn>\u0000 </msup>\u0000 </mrow>\u0000 <annotation>$$ {R}^2 $$</annotation>\u0000 </semantics></math>, MAE, RMSE of 0.9998, 0.093 and 0.138 respectively, significantly outperforming conventional approaches. Rigorous evaluation through K-fold cross-validation and subset stability analysis ensured generalizability across diverse operating conditions. Benchmark comparisons with state-of-the-art methods demonstrated superior predictive accuracy. By addressing critical limitations in traditional degradation modeling, this work provides a scalable, data-driven solution for real-time battery health management, enhancing the reliability and sustainability of electric vehicle applications.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606461","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":"Performance Study of Gel Polymer Electrolyte-Based EDLC With Silver-Coated Textile Substrate for Integrated PV-EDLC System","authors":"W. L. Leong,&nbsp;Grishika Arora,&nbsp;Nuur Syahidah Sabran,&nbsp;H. K. Jun","doi":"10.1002/est2.70221","DOIUrl":"https://doi.org/10.1002/est2.70221","url":null,"abstract":"<div>\u0000 \u0000 <p>A novel integrated energy storage system combining a flexible silver-coated textile-based electric double-layer capacitor (EDLC) with commercial solar photovoltaics (PV) has been successfully developed. This system, capable of bending up to 180°, demonstrates excellent mechanical flexibility, wearability, and energy performance, addressing key limitations in conventional EDLCs such as rigidity, bulkiness, and low energy density. The textile-based EDLC, fabricated using a gel polymer electrolyte (GPE), achieved a high specific capacitance of 2.89 mF cm⁻² (71.32 F kg⁻¹), along with energy and power densities of 12.5 and 13.2 mW cm⁻², respectively. Notably, the device retained 100% capacitance over short cycling bursts, confirming its stability and reliability. What distinguishes this work is the use of silver-coated textile as both a current collector and flexible substrate, offering biocompatibility, high conductivity, and excellent integration with garments. This material choice allows higher mass loading and enhanced charge storage without compromising comfort or flexibility. When integrated with a flexible solar PV, the system achieved an overall power conversion efficiency of 2.2% and demonstrated rapid charging capability, powering a simple electronic device for 30 min after just 5 s of sunlight exposure. This study presents a low-cost, lightweight, and durable solution for next-generation wearable electronics, pushing forward the development of flexible, textile-based PV-EDLC systems by overcoming the limitations of existing rigid or semi-flexible designs.</p>\u0000 </div>","PeriodicalId":11765,"journal":{"name":"Energy Storage","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581851","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}