Journal of energy storage最新文献_第10页

4.85 V high-voltage lithium ion battery enabled by an in-situ formed Lewis acid-base complex multifunctional additive and nanocomposite electrodes

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-28 DOI: 10.1016/j.est.2025.116435

Xiaoping Yang , Maolin Zhang , Chenyang Zhao , Peng Dong , Wen Lu , Fang Cheng

{"title":"4.85 V high-voltage lithium ion battery enabled by an in-situ formed Lewis acid-base complex multifunctional additive and nanocomposite electrodes","authors":"Xiaoping Yang , Maolin Zhang , Chenyang Zhao , Peng Dong , Wen Lu , Fang Cheng","doi":"10.1016/j.est.2025.116435","DOIUrl":"10.1016/j.est.2025.116435","url":null,"abstract":"<div><div>Elevating the operating voltage of Lithium-ion battery (LIB) is key to enhance its energy density but challenging. Herein, we propose and demonstrate a new concept of introducing Lewis acid-base complex as multifunctional electrolyte additive for high-voltage LIBs, which is in-situ formed through the electron accepting-donating reaction between Lewis acid (fluoroethylene carbonate, FEC) and Lewis base (tris(trimethylsilyl) phosphite, TMSP). The combined multi-functionalities enable it to stabilize and clean the electrolyte, and be preferential oxidized/reduced to form robust F/P/Si-rich inorganic-organic hybrid cathode electrolyte interphase (CEI) and solid electrolyte interphase (SEI) for protecting both LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> (LNMO) cathode and graphite (Gr) anode from continuous electrolyte decomposition and the dissolution of metal ions from LNMO cathode and inactive Li plating on Gr anode. In addition, carbon nanotubes (CNTs) and graphene (GN) are used as conductive additives to construct a three-dimensional (3D) internal conductive network for boosting the rate capability and cycling stability. The synergy from the complex and nanocomposites endows our LIBs with a high voltage of 4.85 V, a high energy and power density of 284.5 Wh kg<sup>−1</sup> and 2.8 kW kg<sup>−1</sup>, and a long lifespan. This feasible approach represents a simple yet effective electrolyte engineering and electrode optimization strategy for fabricating high-voltage LIBs.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116435"},"PeriodicalIF":8.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Online state of charge estimation for lithium-ion batteries using improved fuzzy C-means sparrow backpropagation algorithm

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-28 DOI: 10.1016/j.est.2025.116351

Nan Hai , Shunli Wang , Wen Cao , Frede Blaabjerg , Carlos Fernandez

{"title":"Online state of charge estimation for lithium-ion batteries using improved fuzzy C-means sparrow backpropagation algorithm","authors":"Nan Hai , Shunli Wang , Wen Cao , Frede Blaabjerg , Carlos Fernandez","doi":"10.1016/j.est.2025.116351","DOIUrl":"10.1016/j.est.2025.116351","url":null,"abstract":"<div><div>With the rapid development of new energy vehicles (EVs), cloud-based management of the lithium-ion batteries (LIBs) state of charge (SOC) has become the technological mainstream under increasing intelligence. However, SOC is highly sensitive to the modeling approach and data volume, making high-precision real-time estimation under complex conditions a significant challenge. An online estimation model based on an improved fuzzy C-means clustering sparrow search algorithm with a backpropagation neural network (FCMC-SSA-BP) has been developed to address this issue. The model collects raw voltage and current data through vehicle control speed in real-world conditions, which is then denoised and transmitted in real-time to an online cloud-based high-precision estimation system. The estimated remaining battery capacity is subsequently sent to the online battery management system (BMS) and visualized. The performance of the algorithm within the system directly influences the accuracy of SOC estimation. In the BP model, momentum factors and weight correction are introduced to enhance the stability of gradient learning to data volume. The efficiency of the algorithm is further improved using an enhanced Logistic chaotic map and an advanced elite reverse learning strategy. Additionally, the modified FCMC algorithm is employed to reduce the impact of nonlinear characteristics on prediction accuracy. Finally, the test results showed that the maximum error (Max_E) of the IFCMC-SSA-BP reached 0.84 %, 0.52 %, and 0.0031 % at 0 °C, 15 °C, and 35 °C under BBDST. Similarly, it reached 6.82 %, 3.29 %, and 1.4 % under HPPC, and for UDDS condition, it reached 9.33 %, 4.95 %, and 4.88 % at 20 °C, 25 °C, and 30 °C.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116351"},"PeriodicalIF":8.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of asphaltene-derived hierarchically activated carbon and carbon-coated Li4Ti5O12 for high-performance lithium-ion capacitors

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-28 DOI: 10.1016/j.est.2025.116325

Kuen-Chan Lee , Jen-Hsien Huang , Wei Kong Pang , Kuan-Syun Wang , Shih-Chieh Hsu , Huei Chu Weng , Ting-Yu Liu

{"title":"Development of asphaltene-derived hierarchically activated carbon and carbon-coated Li4Ti5O12 for high-performance lithium-ion capacitors","authors":"Kuen-Chan Lee , Jen-Hsien Huang , Wei Kong Pang , Kuan-Syun Wang , Shih-Chieh Hsu , Huei Chu Weng , Ting-Yu Liu","doi":"10.1016/j.est.2025.116325","DOIUrl":"10.1016/j.est.2025.116325","url":null,"abstract":"<div><div>Lithium-ion capacitors (LICs), which integrate the complementary characteristics of electric double-layer capacitors (EDLCs) and lithium-ion batteries (LIBs) to achieve high energy density and power capability, have attracted substantial interest. Asphaltene, a challenging byproduct of crude oil extraction, can be transformed into a valuable material for energy storage applications through an appropriate activation process. In this study, undesired asphaltene was utilized as a carbon source to produce hierarchical porous activated carbon (AC) for supercapacitors (SCs) and to form a modified carbon coating on Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> (LTO) anode materials, enhancing rate performance. The asphaltene-derived AC exhibits a specific capacitance of 100.8 F/g at 0.1 A/g, with a retention of 86.7 % after 40,000 cycles in a 1.0 M TEABF<sub>4</sub>/PC electrolyte. Moreover, the uniform coating of asphaltene-derived carbon on LTO also enhances the electronic conductivity, delivering a specific capacity of 120.5 mAh/g even at a high current rate of 20C. By integrating the asphaltene-derived capacitive SC and Faradaic LIB electrodes, the resultant LICs reveal excellent electrochemical properties with an energy density of 60.75 W h/kg at a power density of 215 W/kg, along with superior cycling stability. This work presents a viable method for converting the undesirable fraction of crude oil into high-performance energy storage materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116325"},"PeriodicalIF":8.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial charge transfer dynamics in cerium metal-organic framework through non-covalent interactions with hydrogen-rich aqueous and nitrogen-rich ionic electrolytes for energy storage applications

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-27 DOI: 10.1016/j.est.2025.116382

Amir Humayun, Kandasamy Prabakar

{"title":"Interfacial charge transfer dynamics in cerium metal-organic framework through non-covalent interactions with hydrogen-rich aqueous and nitrogen-rich ionic electrolytes for energy storage applications","authors":"Amir Humayun, Kandasamy Prabakar","doi":"10.1016/j.est.2025.116382","DOIUrl":"10.1016/j.est.2025.116382","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) hold significant potential for energy storage, but their performance is hindered by narrow operating potential windows (OPW) and low energy densities. This study focuses on the interfacial charge transfer dynamics of non-covalently bonded Cerium-Benzene-1,4-dicarboxylic acid (Ce-BDC MOF) in ethyldimethylpropylammonium bis(trifluoromethylsulfonyl)imide ionic liquids electrolyte (EDMPA-TFSI ILs), aiming to improve energy storage compared to H₂SO₄ aqueous electrolyte. The Ce-BDC MOF shows promising pseudocapacitive behavior in H₂SO₄, yet it is limited to a narrow 1 V operating window. In contrast, using EDMPA-TFSI ILs expands this window to 3 V, significantly enhancing energy density and specific capacity. The Ce-BDC MOF symmetric pseudocapacitor in EDMPA-TFSI ILs achieves a high specific capacity of 248 mAh g<sup>-1</sup> at 1 A g<sup>-1</sup> and an energy density of 154 Wh kg<sup>−1</sup> at 442 W kg<sup>−1</sup>, surpassing aqueous solutions. However, long-term stability is a concern as prolonged cycling may degrade the ILs at higher voltages. The ILs is degraded to form sulfate ions found during the stability test, which is caused by the prolonged exposure of the sulfonyl groups in the TFSI anions with the trifluoromethyl group and the imide group to high voltages. The carboxylic acid groups of the BDC linker interact with the imide group of TFSI, leading to the replacement of the amine group in the sulfonyl group and the subsequent breakdown of the sulfonyl bond. To address the degradation of ILs bonding an electron-withdrawing group to the MOF can increase the acidity of the carboxylic groups, reducing their reactivity with the electrolyte. This approach could enhance the performance of MOF-based energy storage devices.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116382"},"PeriodicalIF":8.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid energy storage power management system harnessing battery-supercapacitor synergy for grid-isolated DC microgrid

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-27 DOI: 10.1016/j.est.2025.116170

Jahidul Islam Shuvo , Md. Badoruzzaman , Shaikh Tawhidul Islam Anik , Shameem Ahmad , Tofael Ahmed , Mazaher Karimi

{"title":"Hybrid energy storage power management system harnessing battery-supercapacitor synergy for grid-isolated DC microgrid","authors":"Jahidul Islam Shuvo , Md. Badoruzzaman , Shaikh Tawhidul Islam Anik , Shameem Ahmad , Tofael Ahmed , Mazaher Karimi","doi":"10.1016/j.est.2025.116170","DOIUrl":"10.1016/j.est.2025.116170","url":null,"abstract":"<div><div>Energy storage systems (ESSs) are critical to the stability, reliability, and flexibility of microgrids (MGs). Dependence on a single ESS constrains operational longevity due to continuous cycling and difficulties in regulating swift load fluctuations. To address this, hybrid energy storage systems (HESSs) integrate various storage technologies, which are crucial for enhancing stability, efficiency, and operational performance of the system. Nonetheless, advanced power management strategies are essential for achieving optimal operation of HESSs due to their intricate characteristics. This study introduces a hybrid energy storage power management system (HESPMS) that integrates a HESS with an adaptive load management system designed for a grid-isolated solar-powered direct current (DC) MG. The adaptive load management component of the system actively equilibrates demand on the consumption side, efficiently controlling alternating current (AC) loads, such as residential loads, in addition to managing electric vehicle (EV) charging loads. The proposed HESPMS allows the SC to manage transients and the battery to supply continuous power, with one source compensating for the other when required, while adaptively aligning load demands with available solar and storage resources to enhance the performance and prolong the lifespan of HESS. Leveraging a fuzzy logic-based maximum power point tracking (MPPT) controller maximizes solar power conversion and generation efficiency. MATLAB/Simulink simulations validate the proposed system's robustness across multiple operational scenarios, demonstrating precise voltage regulation (±0.046), rapid settling time (20 ms), and peak overshoot of 2.53 %. These results underscore the system's resilience and ability to maintain stable operation under dynamic renewable energy conditions.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116170"},"PeriodicalIF":8.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Innovative design of nickel-manganese tellurium on heteroatom-doped graphene hollow spheres as active materials for supercapacitors

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-27 DOI: 10.1016/j.est.2025.116362

Po-Yen Tai , Mani Sakthivel , Lu-Yin Lin , Kuo-Chuan Ho

{"title":"Innovative design of nickel-manganese tellurium on heteroatom-doped graphene hollow spheres as active materials for supercapacitors","authors":"Po-Yen Tai , Mani Sakthivel , Lu-Yin Lin , Kuo-Chuan Ho","doi":"10.1016/j.est.2025.116362","DOIUrl":"10.1016/j.est.2025.116362","url":null,"abstract":"<div><div>In this work, a novel bimetallic nickel‑manganese telluride (NiMnTe) decorated heteroatom-doped graphene hollow balls (HGHB) (NiMnTe/HGHB) was synthesized using a hydrothermal process followed by tellurization. The hollow structure of HGHB mitigates structural collapse during prolonged charge/discharge cycles, while the incorporation of heteroatoms into graphene modulates its electronic properties and enhances ion adsorption. NiMnTe, with its multiple valence states and strong dipole moments, facilitates abundant redox reactions and promotes efficient charge transfer. Monometallic Ni- and Mn-based compounds were synthesized, and the metal ratio in the bimetallic compound was optimized to design NiMnTe with an ideal composition. The NiMnTe/HGHB electrode demonstrated a high specific capacitance (C<sub>F</sub>) of 1450 F/g at a current density of 1 A/g. A hybrid device composed of NiMnTe/HGHB and activated carbon (AC) achieved a high C<sub>F</sub> of 147.3 F/g and a maximum energy density of 47.8 Wh/kg at a power density of 772.0 W/kg. Additionally, the hybrid device exhibited excellent cycling stability, retaining 82.0% of its C<sub>F</sub> after 10,000 cycles at 5 A/g. These findings underscore the potential of telluride bimetallic structures combined with carbon materials for advanced supercapacitor applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116362"},"PeriodicalIF":8.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards temperature-dependent linear parameter-varying models for lithium-ion batteries using novel experimental design

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-27 DOI: 10.1016/j.est.2025.116311

A.M.A. Sheikh , M.C.F. Donkers , H.J. Bergveld

{"title":"Towards temperature-dependent linear parameter-varying models for lithium-ion batteries using novel experimental design","authors":"A.M.A. Sheikh , M.C.F. Donkers , H.J. Bergveld","doi":"10.1016/j.est.2025.116311","DOIUrl":"10.1016/j.est.2025.116311","url":null,"abstract":"<div><div>This paper proposes a comprehensive approach to identifying temperature-dependent battery models using the input–output model representation in the linear parameter-varying (LPV) framework. The proposed model structure considers a simultaneous dependence of the model parameters on the battery state-of-charge (SOC), current magnitude, current direction and temperature using a suitable set of basis functions formulated using available physical and experimental knowledge. Additionally, a temperature profile design is proposed that can be used along with a current profile design to excite the relevant temperature-dependent battery dynamics during the identification experiments. Moreover, an algorithm to combine multiple identification experiments is presented so that the computational complexity of the regression problem is of the same order as that of a single experiment. Finally, several battery models with varying model order and basis-function complexity are identified for a 2.85-Ah NMC battery, which are subsequently validated using a test dataset resembling a real drive-cycle scenario under varying temperature conditions. The corresponding root-mean-squared error (RMSE) values for the model exhibiting the best voltage simulation performance are found to be 19.31, 11.93 and 6.95 mV for the “cold”, “normal” and “hot” temperature conditions, respectively.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116311"},"PeriodicalIF":8.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile conversion from spent graphite to N-doped graphite with high cycling performance

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-27 DOI: 10.1016/j.est.2025.116399

Jinlian Yu, Shenglong Yang, Jing Mei, Kui Liu, Juan Yang, Yu Wang, Hongqiang Wang, Youguo Huang

{"title":"Facile conversion from spent graphite to N-doped graphite with high cycling performance","authors":"Jinlian Yu, Shenglong Yang, Jing Mei, Kui Liu, Juan Yang, Yu Wang, Hongqiang Wang, Youguo Huang","doi":"10.1016/j.est.2025.116399","DOIUrl":"10.1016/j.est.2025.116399","url":null,"abstract":"<div><div>Recovery of graphite from spent lithium-ion batteries (LIBs) is of great importance to sustainable development of battery industry and environmental protection. Herein, we propose a novel and simple strategy for the reconstruction and recovery of waste graphite. By roasting mixture of waste graphite and melamine, N-doping and interlayer broadening for graphite are achieved simultaneously. The formation of C<img>N bond induces defect generation, and the gases produced from melamine decomposition enlarge the interlayer spacing, both of which are conducive to the transport and storage of lithium ion. Density functional theory analysis shows that the regenerated N-doped graphite (NG) has a lower adsorption energy than commercial graphite. NG electrode exhibits excellent cycling stability. It delivers a high specific capacity of 406 mAh g<sup>−1</sup> at 1C after 1000 cycles, which exceeds that of commercial graphite. In situ XRD analysis further demonstrates that NG electrode has good reversibility and superior lithium-ion storage ability. This research provides a facile method to accomplish the closed-loop utilization of graphite in LIBs.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116399"},"PeriodicalIF":8.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Feather-like etched Ti3AlC2 MAX phase as a redox mediated electrode for supercapacitor

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-27 DOI: 10.1016/j.est.2025.116355

Artiqah Khairudin , Fatin Saiha Omar , Siti Aisyah Shamsudin , Rozidawati Awang , Syed Muhammad Hafiz Syed Mohd Jaafar , Nurul Hazierah Kamaruddin , Muhammad Izz Rosli , Arshid Numan , Muhammad Norhaffis Mustafa , Norshahirah Mohamad Saidi

{"title":"Feather-like etched Ti3AlC2 MAX phase as a redox mediated electrode for supercapacitor","authors":"Artiqah Khairudin , Fatin Saiha Omar , Siti Aisyah Shamsudin , Rozidawati Awang , Syed Muhammad Hafiz Syed Mohd Jaafar , Nurul Hazierah Kamaruddin , Muhammad Izz Rosli , Arshid Numan , Muhammad Norhaffis Mustafa , Norshahirah Mohamad Saidi","doi":"10.1016/j.est.2025.116355","DOIUrl":"10.1016/j.est.2025.116355","url":null,"abstract":"<div><div>Ti<sub>3</sub>AlC<sub>2</sub> has a layered structure, which is desirable in supercapacitor applications. However, due to the presence of Al layers, these layers disrupt the free movement of charges, causing the study of the efficient etching process of Ti<sub>3</sub>AlC<sub>2</sub> to still receive continuous attention. Herein, a rapid microwave-assisted hydrothermal method has been introduced as an alternative etching method of Ti<sub>3</sub>AlC<sub>2</sub>. Moreover, the influence of different heating temperatures on the etching rate of Ti<sub>3</sub>AlC<sub>2</sub> has been studied. The structural, morphology, surface elemental, and electrochemical analyses revealed that exposure to the Ti<sub>3</sub>AlC<sub>2</sub> etching process under microwave radiation at a certain heating temperature resulted in a large crystallite size and a high number of defects which suppress the interaction between the electrolyte and electrode material. Among the synthesized samples, the etched Ti<sub>3</sub>AlC<sub>2</sub> prepared at the temperature of 40 °C (T40) exhibited the highest specific capacity of 341 Cg<sup>−1</sup> at a current density of 0.8 Ag<sup>−1</sup>. An asymmetric supercapacitor was assembled, and the device exhibited a specific capacitance of 40 Fg<sup>−1</sup> and retained 81 % of its initial specific capacitance after 5000 cycles.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116355"},"PeriodicalIF":8.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Real-time Two-step Multi-objective Planning Framework for Resilience Improvement of Islanded Microgrids based on MPC

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-27 DOI: 10.1016/j.est.2025.116343

Sina Roudnil, Saeid Ghassem Zadeh, Mohammad Reza Feyzi, Amir Aminzadeh Ghavifekr

{"title":"A Real-time Two-step Multi-objective Planning Framework for Resilience Improvement of Islanded Microgrids based on MPC","authors":"Sina Roudnil, Saeid Ghassem Zadeh, Mohammad Reza Feyzi, Amir Aminzadeh Ghavifekr","doi":"10.1016/j.est.2025.116343","DOIUrl":"10.1016/j.est.2025.116343","url":null,"abstract":"<div><div>Improving the resilience of islanded microgrids is crucial to ensure power supply continuity against high-impact events. In this paper, a novel two-step multi-objective planning framework based on model predictive control is presented for a microgrid real-time energy management system. The first step involves developing a techno-economic model to optimize the operation of microgrids under normal conditions. A resilience-oriented model is employed in the second step when the microgrid operates in islanded mode due to the upstream grid outage. Using the optimal stored energy calculated in the first step increases the adaptability of the microgrid to abnormal conditions to supply demand. Model predictive control is utilized to optimize energy management in real-time using forecasted data and multi-objective control capability considering operational constraints. In each time step of the framework, a real-time metric based on the percentage of supplied demand is used to determine the microgrid operation mode. Simulation results indicate that the proposed method significantly outperforms counterpart MPC-based methods, achieving superior techno-economic performance under normal conditions. During abnormal conditions, the resilience metric in the proposed method is above 80 % in all cases and is more compared to the counterpart. The capability of the microgrid, load shedding, and redundancy are analyzed in three cases to examine robustness, survival, and agility criteria. A quantitative discussion of these criteria and the resilience metric that supports the comparative analysis proves the improvement of microgrid resilience with the proposed framework in all cases.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116343"},"PeriodicalIF":8.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0