Pub Date : 2025-02-15DOI: 10.1016/j.est.2025.115714
Jayabrata Maity, Munmun Khanra
The Incremental Capacity (IC) analysis is a popular method to analyse battery State of Health (SOH). Existing IC curve-based approaches utilize a fixed number of peaks in the IC curve to determine SOH. However, this assumption does not hold well under fast charging where one or multiple peaks tend to disappear near the End of Life (EOL) of batteries. In this context, this paper presents an SOH estimation approach that overcomes these limitations by leveraging IC curve and Equivalent Circuit Model (ECM). Specifically, the proposed approach formulates a voltage-capacity model considering IC curve peak number as a function of SOH — ultimately enabling adaptive peak selection in IC curves and eliminating the need for any separate experimentation at a low C-rate. Subsequently, the proposed approach estimates SOH in terms of maximum capacity () from the voltage capacity model, by employing a nonlinear least square optimization-based parameter estimation. The effectiveness of the proposed model and algorithm is examined using the open access data mimicking real scenario — which resulted in average Root Mean Square Error (RMSE) of 0.7793% in eight cells and a maximum RMSE of 0.9496% in one cell. Also, the robustness of rule-based peak selection strategy is studied and found satisfactory.
{"title":"An improved mathematical model for State of Health estimation of lithium-ion batteries in electric vehicle under fast charging","authors":"Jayabrata Maity, Munmun Khanra","doi":"10.1016/j.est.2025.115714","DOIUrl":"10.1016/j.est.2025.115714","url":null,"abstract":"<div><div>The Incremental Capacity (IC) analysis is a popular method to analyse battery State of Health (SOH). Existing IC curve-based approaches utilize a fixed number of peaks in the IC curve to determine SOH. However, this assumption does not hold well under fast charging where one or multiple peaks tend to disappear near the End of Life (EOL) of batteries. In this context, this paper presents an SOH estimation approach that overcomes these limitations by leveraging IC curve and Equivalent Circuit Model (ECM). Specifically, the proposed approach formulates a voltage-capacity model considering IC curve peak number as a function of SOH — ultimately enabling adaptive peak selection in IC curves and eliminating the need for any separate experimentation at a low C-rate. Subsequently, the proposed approach estimates SOH in terms of maximum capacity (<span><math><msub><mrow><mi>Q</mi></mrow><mrow><mi>m</mi><mi>a</mi><mi>x</mi></mrow></msub></math></span>) from the voltage capacity model, by employing a nonlinear least square optimization-based parameter estimation. The effectiveness of the proposed model and algorithm is examined using the open access data mimicking real scenario — which resulted in average Root Mean Square Error (RMSE) of 0.7793% in eight cells and a maximum RMSE of 0.9496% in one cell. Also, the robustness of rule-based peak selection strategy is studied and found satisfactory.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115714"},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420956","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}
Pub Date : 2025-02-15DOI: 10.1016/j.est.2025.115831
Israr Ahmad , Muhammad Shahab , Kiran Khan , Muhammad Zeeshan , Javed Ali Khan , Awais Qarni , Mohammad Ibrahim , Ihsan Ullah , Sana Ullah , Anis Ur Rahman , Fazal Raziq , Asad Ali
The present study reports a high power density hybrid aqueous asymmetric super capacitor device by fabrication of potassium doped manganese oxide (K-⸹MnO2) nano-spheres embedded in reduced graphene oxide (rGO) and resorcinol formaldehyde aerogel (RF) as anode material and activated carbon as cathode material. This rationally designed electrode material manifests exceptionally lofty areal capacitance of 1037.30 mF/Cm2 and gravimetric capacitance 671.90 F/g. The synergy of reduced graphene oxide and resorcinol formaldehyde aerogel endows the K-⸹MnO2 enhanced specific surface area (676.314 m2/g), elevated electroactive sites and improved ionic and electrical conductivity. Benefiting from Power law and Dunn's method a comprehensive mechanistic insight has been presented, revealing the superiority of surface controlled capacitive and pseudo-capacitive kinetics. In 1 M Na2SO4 electrolytic solution an asymmetric aqueous hybrid super capacitor rGO/K-⸹MnO2/RF//AC has been fabricated. The device delivers an impressive areal cell capacitance of 321.63 mF/cm2and gravimetric cell capacitance of 371.25 F/g. Moreover the device exhibits excellent energy density 132 Wh/kg (114.35 μWh/cm2) and power density 533.33 W/Kg (4.6205 mW/cm2). The device shows outstanding cyclic stability of 96.7 % over 10,000 continuous charge-discharge cycles. This fascinating capacitive performance make the rGO/K-MnO2/RF //AC a potent candidate for energy storage applications in hybrid aqueous asymmetric super capacitors.
{"title":"Double carbon matrix rGO and resorcinol formaldehyde aerogel supported mesoporous K-⸹MnO2 nano-spheres as anode material for high efficacy hybrid aqueous asymmetric super capacitor","authors":"Israr Ahmad , Muhammad Shahab , Kiran Khan , Muhammad Zeeshan , Javed Ali Khan , Awais Qarni , Mohammad Ibrahim , Ihsan Ullah , Sana Ullah , Anis Ur Rahman , Fazal Raziq , Asad Ali","doi":"10.1016/j.est.2025.115831","DOIUrl":"10.1016/j.est.2025.115831","url":null,"abstract":"<div><div>The present study reports a high power density hybrid aqueous asymmetric super capacitor device by fabrication of potassium doped manganese oxide (K-⸹MnO<sub>2</sub>) nano-spheres embedded in reduced graphene oxide (rGO) and resorcinol formaldehyde aerogel (RF) as anode material and activated carbon as cathode material. This rationally designed electrode material manifests exceptionally lofty areal capacitance of 1037.30 mF/Cm<sup>2</sup> and gravimetric capacitance 671.90 F/g. The synergy of reduced graphene oxide and resorcinol formaldehyde aerogel endows the K-⸹MnO<sub>2</sub> enhanced specific surface area (676.314 m<sup>2</sup>/g), elevated electroactive sites and improved ionic and electrical conductivity. Benefiting from Power law and Dunn's method a comprehensive mechanistic insight has been presented, revealing the superiority of surface controlled capacitive and pseudo-capacitive kinetics. In 1 M Na<sub>2</sub>SO<sub>4</sub> electrolytic solution an asymmetric aqueous hybrid super capacitor rGO/K-⸹MnO<sub>2</sub>/RF//AC has been fabricated. The device delivers an impressive areal cell capacitance of 321.63 mF/cm<sup>2</sup>and gravimetric cell capacitance of 371.25 F/g. Moreover the device exhibits excellent energy density 132 Wh/kg (114.35 μWh/cm<sup>2</sup>) and power density 533.33 W/Kg (4.6205 mW/cm<sup>2</sup>). The device shows outstanding cyclic stability of 96.7 % over 10,000 continuous charge-discharge cycles. This fascinating capacitive performance make the rGO/K-MnO<sub>2</sub>/RF //AC a potent candidate for energy storage applications in hybrid aqueous asymmetric super capacitors.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115831"},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420951","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}
Pub Date : 2025-02-15DOI: 10.1016/j.est.2025.115796
Fatih Yilmaz
The developed study conducts comprehensive energy, exergy, economic, and environmental investigates of a geothermal-assisted integrated plant producing green compressed hydrogen, power, heating, and freshwater. The present combined plant integrates a supercritical carbon dioxide-based Brayton cycle (sCO2-BC), a transcritical carbon dioxide-based Rankine cycle (tCO2-RC), a hydrogen production and storage unit, and a desalination process. The primary goal of this configuration is compressed hydrogen storage beyond green power, heating, and freshwater generation. In this paper, extensive thermo-economic and environmental impact study is executed parametrically to examine the plant's efficiency, economic cost, and the rate of emissions saved. Looking at base case results indicates that this plant's efficiencies are computed as energetically 25.84 % and 31.92 % exergetically. The net power, hydrogen, and freshwater capabilities of this integrated model are 1128kW, 0.001693 kgs−1, and 1.28 kgs−1 respectively. Likewise, the entire model cost rate and hydrogen generation cost rate are calculated as 149.1 $h−1 and 1.479 $kg−1. Moreover, regarding environmental impact, about 7174 tons of annual CO2 emissions have been saved if the beneficial outputs obtained from the 200 geothermal sources are to be obtained by using natural gas (methane). The findings of this paper highlight the potential of hydrogen generation with renewable energy-based multigeneration plants in transit to net zero emission aims and can provide the basis for future innovative studies on this subject.
{"title":"A comprehensive energy, exergy, economic, and environmental (4E) assessment of a geothermal-driven polygeneration plant with energy storage using compressed hydrogen","authors":"Fatih Yilmaz","doi":"10.1016/j.est.2025.115796","DOIUrl":"10.1016/j.est.2025.115796","url":null,"abstract":"<div><div>The developed study conducts comprehensive energy, exergy, economic, and environmental investigates of a geothermal-assisted integrated plant producing green compressed hydrogen, power, heating, and freshwater. The present combined plant integrates a supercritical carbon dioxide-based Brayton cycle (sCO<sub>2</sub>-BC), a transcritical carbon dioxide-based Rankine cycle (tCO<sub>2</sub>-RC), a hydrogen production and storage unit, and a desalination process. The primary goal of this configuration is compressed hydrogen storage beyond green power, heating, and freshwater generation. In this paper, extensive thermo-economic and environmental impact study is executed parametrically to examine the plant's efficiency, economic cost, and the rate of emissions saved. Looking at base case results indicates that this plant's efficiencies are computed as energetically 25.84 % and 31.92 % exergetically. The net power, hydrogen, and freshwater capabilities of this integrated model are 1128kW, 0.001693 kgs<sup>−1</sup>, and 1.28 kgs<sup>−1</sup> respectively. Likewise, the entire model cost rate and hydrogen generation cost rate are calculated as 149.1 $h<sup>−1</sup> and 1.479 $kg<sup>−1</sup>. Moreover, regarding environmental impact, about 7174 tons of annual CO<sub>2</sub> emissions have been saved if the beneficial outputs obtained from the 200 <span><math><msup><mrow></mrow><mo>°</mo></msup><mi>C</mi></math></span> geothermal sources are to be obtained by using natural gas (methane). The findings of this paper highlight the potential of hydrogen generation with renewable energy-based multigeneration plants in transit to net zero emission aims and can provide the basis for future innovative studies on this subject.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115796"},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420961","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}
Pub Date : 2025-02-15DOI: 10.1016/j.est.2025.115830
M. Arun , Susmita Samal , Debabrata Barik , Sreejesh S.R. Chandran , Kapura Tudu , Seepana Praveenkumar
As the world struggles to meet the rising demand for sustainable and reliable energy sources, incorporating Energy Storage Systems (ESS) into the grid is critical. ESS assists in reducing peak loads, thereby reducing fossil fuel use and paving the way for a more sustainable energy future; additionally, it balances supply and demand. In addition, it guarantees integrated systems' secure and reliable operation while integrating intermittent renewable energy sources. This research proposes the Swarm Energy Storage Unit System (SESUS) to integrate nano-scale energy storage units. These units are efficient and space-saving. These systems use innovative nanomaterials to store and release energy quickly, with low losses and high efficiency. Swarm robots at the core of SESUS collectively manage and distribute stored energy. In this proposed work, mobile swarm units can adapt to changes in grid conditions and energy demands in real time. Power shortage and failure can be avoided with the help of SESUS because it increases grid resilience by offering distributed energy storage that can quickly react to changes in renewable energy supply or unanticipated grid disturbances. Innovative energy storage and grid modernization (GM) approaches, such as nano-grids with SESUS, provide unprecedented scalability, reliability, and efficacy in power management for urban demands. The experimental outcomes indicate the accuracy and acceptability in distribution optimization of about 98.8 %, efficacy of 97.5 %, reliability of 95.7 %, scalability of 97.9 %, and grid stability of 96.2 % compared to other existing models. Hence, a seamless integration of ESS and SESUS with existing grid infrastructure and the development of grid-specific solutions will give future energy sustainability.
{"title":"Integration of energy storage systems and grid modernization for reliable urban power management toward future energy sustainability","authors":"M. Arun , Susmita Samal , Debabrata Barik , Sreejesh S.R. Chandran , Kapura Tudu , Seepana Praveenkumar","doi":"10.1016/j.est.2025.115830","DOIUrl":"10.1016/j.est.2025.115830","url":null,"abstract":"<div><div>As the world struggles to meet the rising demand for sustainable and reliable energy sources, incorporating Energy Storage Systems (ESS) into the grid is critical. ESS assists in reducing peak loads, thereby reducing fossil fuel use and paving the way for a more sustainable energy future; additionally, it balances supply and demand. In addition, it guarantees integrated systems' secure and reliable operation while integrating intermittent renewable energy sources. This research proposes the Swarm Energy Storage Unit System (SESUS) to integrate nano-scale energy storage units. These units are efficient and space-saving. These systems use innovative nanomaterials to store and release energy quickly, with low losses and high efficiency. Swarm robots at the core of SESUS collectively manage and distribute stored energy. In this proposed work, mobile swarm units can adapt to changes in grid conditions and energy demands in real time. Power shortage and failure can be avoided with the help of SESUS because it increases grid resilience by offering distributed energy storage that can quickly react to changes in renewable energy supply or unanticipated grid disturbances. Innovative energy storage and grid modernization (GM) approaches, such as nano-grids with SESUS, provide unprecedented scalability, reliability, and efficacy in power management for urban demands. The experimental outcomes indicate the accuracy and acceptability in distribution optimization of about 98.8 %, efficacy of 97.5 %, reliability of 95.7 %, scalability of 97.9 %, and grid stability of 96.2 % compared to other existing models. Hence, a seamless integration of ESS and SESUS with existing grid infrastructure and the development of grid-specific solutions will give future energy sustainability.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115830"},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421059","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}
Pub Date : 2025-02-15DOI: 10.1016/j.est.2025.115832
Binbin Zhang , Yi Yang , You Wu
A sinusoidal staggered shell and tube heat exchanger without baffle (SS-STHX) is proposed to avoid the drawbacks of traditional STHX, such as fouling resistance, dead zones and high pressure drop. The column of SS-STHX tubes are arranged in the same direction, while adjacent tubes are in the opposite direction. The performance of SS-STHX has been studied through experiment and numerical simulation. First, a full-scale experiment was conducted to test and verify the simulation method. Empirical formulation was also used to calculate the pressure drop. Then, the effects of structure size and installation spacing on the performance of the heat exchanger were discussed in detail. The ratio of convective heat transfer coefficient (h) and pressure drop (Δp) was used to evaluate the comprehensive performance of SS-STHX. The results show that the performance of the SS-STHX can be improved with the increment of the sinusoidal tube amplitude and the tube number per column, but it is not indefinitely. The heat exchanger's comprehensive performance can also be enhanced with the increment of the sinusoidal tube frequency, the tube spacing, and the arrangement of tubes in the cross-row pattern. The SS-STHX is suitable for a wide range of engineering applications due to its high heat transfer and low pressure drop.
{"title":"Study on the performance of a novel sinusoidal staggered shell and tube heat exchanger without baffle with experiment verification and CFD modeling","authors":"Binbin Zhang , Yi Yang , You Wu","doi":"10.1016/j.est.2025.115832","DOIUrl":"10.1016/j.est.2025.115832","url":null,"abstract":"<div><div>A sinusoidal staggered shell and tube heat exchanger without baffle (SS-STHX) is proposed to avoid the drawbacks of traditional STHX, such as fouling resistance, dead zones and high pressure drop. The column of SS-STHX tubes are arranged in the same direction, while adjacent tubes are in the opposite direction. The performance of SS-STHX has been studied through experiment and numerical simulation. First, a full-scale experiment was conducted to test and verify the simulation method. Empirical formulation was also used to calculate the pressure drop. Then, the effects of structure size and installation spacing on the performance of the heat exchanger were discussed in detail. The ratio of convective heat transfer coefficient (<em>h</em>) and pressure drop (<em>Δp</em>) was used to evaluate the comprehensive performance of SS-STHX. The results show that the performance of the SS-STHX can be improved with the increment of the sinusoidal tube amplitude and the tube number per column, but it is not indefinitely. The heat exchanger's comprehensive performance can also be enhanced with the increment of the sinusoidal tube frequency, the tube spacing, and the arrangement of tubes in the cross-row pattern. The SS-STHX is suitable for a wide range of engineering applications due to its high heat transfer and low pressure drop.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115832"},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420952","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}
Thanks to their exceptional electrical conductivity and desirable electrochemical behavior, mixed metal tellurides (MMTes) are acquiring the spotlight in supercapacitors. Herein, we report a facile self-templating strategy to create hierarchical ZnCoTe hollow nanoflowers (ZCT). Our procedure uses a ZnCo layered double hydroxide nanoflowers (ZCLDH) for synthesis of ZCT and these nanostructures are utilized as desirable materials for supercapacitors. The insertion of Te in the structure of ZCT notably enhances its conductivity. Besides, the special morphology of the ZCT circumvents the pulverization and aggregation issues and ensures structural longevity during cycling processes. Capitalizing on their structural as well as compositional advantages, the ZCT unveils excellent efficiency. It demonstrates a marvelous capacity of 1152C g−1 and preserves a good 77.75 % capacity retention at 28 A g−1. Also, it discloses an impressive lastingness of 90.12 %. An important accomplishment of this work is the creation of a hybrid device ((−)AC||ZCT(+)). This cell exposes an energy density (ED) of 64 Wh kg−1 at the power density (PD) of 800 W kg−1. This research opens avenues for the fabrication of telluride-based materials for other applications.
{"title":"Exploiting the energy storage potential of hierarchical ZnCoTe hollow nanoflowers","authors":"Nastaran Karimipour , Akbar Mohammadi Zardkhoshoui , Saied Saeed Hosseiny Davarani","doi":"10.1016/j.est.2025.115801","DOIUrl":"10.1016/j.est.2025.115801","url":null,"abstract":"<div><div>Thanks to their exceptional electrical conductivity and desirable electrochemical behavior, mixed metal tellurides (MMTes) are acquiring the spotlight in supercapacitors. Herein, we report a facile self-templating strategy to create hierarchical ZnCoTe hollow nanoflowers (ZCT). Our procedure uses a ZnCo layered double hydroxide nanoflowers (ZCLDH) for synthesis of ZCT and these nanostructures are utilized as desirable materials for supercapacitors. The insertion of Te in the structure of ZCT notably enhances its conductivity. Besides, the special morphology of the ZCT circumvents the pulverization and aggregation issues and ensures structural longevity during cycling processes. Capitalizing on their structural as well as compositional advantages, the ZCT unveils excellent efficiency. It demonstrates a marvelous capacity of 1152C g<sup>−1</sup> and preserves a good 77.75 % capacity retention at 28 A g<sup>−1</sup>. Also, it discloses an impressive lastingness of 90.12 %. An important accomplishment of this work is the creation of a hybrid device ((−)AC||ZCT(+)). This cell exposes an energy density (E<sub>D</sub>) of 64 Wh kg<sup>−1</sup> at the power density (P<sub>D</sub>) of 800 W kg<sup>−1</sup>. This research opens avenues for the fabrication of telluride-based materials for other applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115801"},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420953","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}
Pub Date : 2025-02-15DOI: 10.1016/j.est.2025.115778
Uday Raj Singh , Satya Sekhar Bhogilla , Hosokai Sou , Saita Itoko , Ivan Tolj
Hydrogen Refuelling stations demand hydrogen at a very high pressure of 700 bar. Presently, most of these stations rely on conventional mechanical compressors for hydrogen compression. However, conventional compressors necessitate frequent maintenance, consume significant electrical power, and entail higher costs and safety risks. Conversely, MH (metal hydride) compressors offer a solution to these drawbacks and present additional advantages, including their capability to operate using low-grade thermal energy. This underscores the potential for integrating energy storage solutions into hydrogen infrastructure, enhancing efficiency and sustainability. The present work investigates the prospects of minimizing the high compression costs of hydrogen (around 48 % of the total capital cost of the refuelling station) by using a hybrid compressor based on metal hydride technology. The hybrid compressor is designed in such a way that the initial compression stage up to 500 bar is facilitated by an MH compressor, followed by the second stage, which will elevate the pressure up to 1000 bar. Moreover, a comparative energy assessment of the hybrid and conventional compressors is carried out. The results show that the hybrid compressor significantly decreases electrical demand from 3.83 kWh/kg to 0.93 kWh/kg (75.7 % reduction) by incorporating the MH compressor. Therefore, this innovation leads to a substantial reduction in high-grade energy consumption. However, the system's reliance on low grade thermal energy input increases (∼27.2–30.05 kWh/kg). This low grade thermal energy can be supplied through solar thermal collectors or by utilizing the waste heat from any process, making the hybrid compression approach a promising solution for efficient compression systems in both hydrogen storage and refuelling applications.
{"title":"Performance evaluation of hybrid compressors for hydrogen storage and refuelling stations","authors":"Uday Raj Singh , Satya Sekhar Bhogilla , Hosokai Sou , Saita Itoko , Ivan Tolj","doi":"10.1016/j.est.2025.115778","DOIUrl":"10.1016/j.est.2025.115778","url":null,"abstract":"<div><div>Hydrogen Refuelling stations demand hydrogen at a very high pressure of 700 bar. Presently, most of these stations rely on conventional mechanical compressors for hydrogen compression. However, conventional compressors necessitate frequent maintenance, consume significant electrical power, and entail higher costs and safety risks. Conversely, MH (metal hydride) compressors offer a solution to these drawbacks and present additional advantages, including their capability to operate using low-grade thermal energy. This underscores the potential for integrating energy storage solutions into hydrogen infrastructure, enhancing efficiency and sustainability. The present work investigates the prospects of minimizing the high compression costs of hydrogen (around 48 % of the total capital cost of the refuelling station) by using a hybrid compressor based on metal hydride technology. The hybrid compressor is designed in such a way that the initial compression stage up to 500 bar is facilitated by an MH compressor, followed by the second stage, which will elevate the pressure up to 1000 bar. Moreover, a comparative energy assessment of the hybrid and conventional compressors is carried out. The results show that the hybrid compressor significantly decreases electrical demand from 3.83 kWh/kg to 0.93 kWh/kg (75.7 % reduction) by incorporating the MH compressor. Therefore, this innovation leads to a substantial reduction in high-grade energy consumption. However, the system's reliance on low grade thermal energy input increases (∼27.2–30.05 kWh/kg). This low grade thermal energy can be supplied through solar thermal collectors or by utilizing the waste heat from any process, making the hybrid compression approach a promising solution for efficient compression systems in both hydrogen storage and refuelling applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115778"},"PeriodicalIF":8.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420954","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}
Pub Date : 2025-02-14DOI: 10.1016/j.est.2025.115837
Mattia Pasqui , Francesco Gerini , Matthieu Jacobs , Carlo Carcasci , Mario Paolone
Renewable energy communities, where citizens, businesses, and institutions produce, consume, store, and share energy, are increasingly pivotal in energy markets. The use of shared community batteries introduces the challenge of adapting control strategies to community needs, which remains an open question in energy management.
This study presents a two-layer optimal control model for managing community Battery Energy Storage Systems in low-voltage networks to self-dispatch, engage in energy arbitrage and maximize collective self-consumption, as well as preserving battery lifespan. The scheduling layer calculates the optimal dispatch plan and battery trajectories to maximize profits based on long-term forecasts. The real-time control layer minimizes dispatch errors based on real-time data and short-term forecasts.
The key contribution of this work is the experimental validation of a novel model that, for the first time in the literature, integrates dispatch, energy arbitrage, and collective self-consumption services. This model is the result of adapting and enhancing an existing framework, which had previously been limited to mathematical formulation and simulation. Here, it is experimentally validated in a real-scale microgrid, demonstrating its applicability and effectiveness in managing these services.
{"title":"Self-dispatching a renewable energy community by means of battery energy storage systems","authors":"Mattia Pasqui , Francesco Gerini , Matthieu Jacobs , Carlo Carcasci , Mario Paolone","doi":"10.1016/j.est.2025.115837","DOIUrl":"10.1016/j.est.2025.115837","url":null,"abstract":"<div><div>Renewable energy communities, where citizens, businesses, and institutions produce, consume, store, and share energy, are increasingly pivotal in energy markets. The use of shared community batteries introduces the challenge of adapting control strategies to community needs, which remains an open question in energy management.</div><div>This study presents a two-layer optimal control model for managing community Battery Energy Storage Systems in low-voltage networks to self-dispatch, engage in energy arbitrage and maximize collective self-consumption, as well as preserving battery lifespan. The scheduling layer calculates the optimal dispatch plan and battery trajectories to maximize profits based on long-term forecasts. The real-time control layer minimizes dispatch errors based on real-time data and short-term forecasts.</div><div>The key contribution of this work is the experimental validation of a novel model that, for the first time in the literature, integrates dispatch, energy arbitrage, and collective self-consumption services. This model is the result of adapting and enhancing an existing framework, which had previously been limited to mathematical formulation and simulation. Here, it is experimentally validated in a real-scale microgrid, demonstrating its applicability and effectiveness in managing these services.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115837"},"PeriodicalIF":8.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403484","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}
Pub Date : 2025-02-14DOI: 10.1016/j.est.2025.115795
Norga Alloyce Komba , Chen Haisong , Bernadetha Benno Liwoko , Grant Charles Mwakipunda
Compressed air energy storage (CAES) systems offer a promising solution to the sporadic of renewable energy sources. By storing surplus electrical energy as compressed air in geological formations, CAES systems can pledge steady and dispatchable power during high-demand energy. This review delves into the various aspects of recent CAES technology based on experiments, modeling and simulations, and field application findings. It highlights the potential use of carbon dioxide as a cushion gas in CAES operations, which has been overlooked in previous reviews. Furthermore, CAES estimation technique and recommended policy for CAES development were discussed for the first time in this paper. Moreover, field operating case studies from Canada and China have been reported in this review paper as being overlooked in previous review papers. In addition, economic analysis for CAES in geological formation has been analyzed for the first time in this review paper. The paper also identifies challenges and research gaps that need to be addressed to enhance CAES's effectiveness, affordability, and sustainable development. By overcoming these challenges, CAES can help combat climate change and provide a sustainable energy supply.
{"title":"A comprehensive review on compressed air energy storage in geological formation: Experiments, simulations, and field applications","authors":"Norga Alloyce Komba , Chen Haisong , Bernadetha Benno Liwoko , Grant Charles Mwakipunda","doi":"10.1016/j.est.2025.115795","DOIUrl":"10.1016/j.est.2025.115795","url":null,"abstract":"<div><div>Compressed air energy storage (CAES) systems offer a promising solution to the sporadic of renewable energy sources. By storing surplus electrical energy as compressed air in geological formations, CAES systems can pledge steady and dispatchable power during high-demand energy. This review delves into the various aspects of recent CAES technology based on experiments, modeling and simulations, and field application findings. It highlights the potential use of carbon dioxide as a cushion gas in CAES operations, which has been overlooked in previous reviews. Furthermore, CAES estimation technique and recommended policy for CAES development were discussed for the first time in this paper. Moreover, field operating case studies from Canada and China have been reported in this review paper as being overlooked in previous review papers. In addition, economic analysis for CAES in geological formation has been analyzed for the first time in this review paper. The paper also identifies challenges and research gaps that need to be addressed to enhance CAES's effectiveness, affordability, and sustainable development. By overcoming these challenges, CAES can help combat climate change and provide a sustainable energy supply.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115795"},"PeriodicalIF":8.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403375","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}
Pub Date : 2025-02-14DOI: 10.1016/j.est.2025.115820
Peijie Xu , Yuhang Yu , Beibei Du , Yongdan Cao , Donghui Sun , Zengchao Ji , Yifei Zhu , Yanyue Jia , Yang Liu , Zhao Cao
Zinc-ion batteries(ZIBs) are promising as the stationary energy storage owing to their inherent high safety, cost-effective, and environmental-friendly. Nevertheless, the notorious dendrite growth and water-induced side reactions on Zn anode significantly downgrade the long-lasting cycling stability and hinder the industrialization of ZIBs. Herein, a flux-homogenized Zn2+ transport system based on a Janus separator is constructed. This Janus separator features bacterial cellulose (BC) layer on one side and roughened halloysite nanotubes/bacterial cellulose (RHNTs/BC) layer on the other side. The abundant surface hydroxyl groups, zincophilicity sites, and ionic transmission paths of RHNTs make them ideal for acting as an ion pump to accelerate the transportation of ions, contributing to the immensely improvement of the de-solvation process, zinc deposition, and the growth of Zn dendrites. As a result, the Zn/Zn symmetrical cell with Janus separator can achieve a stable cycle life of over 800 h at 4.40 mA cm−2. More impressively, the full cell based on Janus separator enables excellent cycling stability. This study enriches the structurally controllable construction method of HNTs and provides the fundamental theories for the application of HNTs in the field of new high-efficiency mineral energy storage materials.
{"title":"High performance Janus separator based on microstructurally controllable halloysite nanotubes for zinc-ion batteries","authors":"Peijie Xu , Yuhang Yu , Beibei Du , Yongdan Cao , Donghui Sun , Zengchao Ji , Yifei Zhu , Yanyue Jia , Yang Liu , Zhao Cao","doi":"10.1016/j.est.2025.115820","DOIUrl":"10.1016/j.est.2025.115820","url":null,"abstract":"<div><div>Zinc-ion batteries(ZIBs) are promising as the stationary energy storage owing to their inherent high safety, cost-effective, and environmental-friendly. Nevertheless, the notorious dendrite growth and water-induced side reactions on Zn anode significantly downgrade the long-lasting cycling stability and hinder the industrialization of ZIBs. Herein, a flux-homogenized Zn<sup>2+</sup> transport system based on a Janus separator is constructed. This Janus separator features bacterial cellulose (BC) layer on one side and roughened halloysite nanotubes/bacterial cellulose (RHNTs/BC) layer on the other side. The abundant surface hydroxyl groups, zincophilicity sites, and ionic transmission paths of RHNTs make them ideal for acting as an ion pump to accelerate the transportation of ions, contributing to the immensely improvement of the de-solvation process, zinc deposition, and the growth of Zn dendrites. As a result, the Zn/Zn symmetrical cell with Janus separator can achieve a stable cycle life of over 800 h at 4.40 mA cm<sup>−2</sup>. More impressively, the full cell based on Janus separator enables excellent cycling stability. This study enriches the structurally controllable construction method of HNTs and provides the fundamental theories for the application of HNTs in the field of new high-efficiency mineral energy storage materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"114 ","pages":"Article 115820"},"PeriodicalIF":8.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403483","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}