Journal of energy storage最新文献

Choice of an efficient, sustainable and cost-effective energy storage system for optimal operation of a microgrid system incorporating adaptive demand side management strategies 选择一种高效、可持续和具有成本效益的储能系统，以实现微电网系统的优化运行，并结合适应性需求侧管理策略

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118896

Bishwajit Dey , Raj Jadav , Rangu Seshu Kumar

{"title":"Choice of an efficient, sustainable and cost-effective energy storage system for optimal operation of a microgrid system incorporating adaptive demand side management strategies","authors":"Bishwajit Dey , Raj Jadav , Rangu Seshu Kumar","doi":"10.1016/j.est.2025.118896","DOIUrl":"10.1016/j.est.2025.118896","url":null,"abstract":"<div><div>The cost-effective and low-carbon operation of a microgrid is significantly improved by Plug-in Hybrid Electric Vehicles (PHEVs) in comparison to Battery Energy Storage Systems (BESS) because of their flexible demand-side participation, bidirectional power flow, and mobility. PHEVs incorporate vehicle-to-grid (V2G) technology, which enables real-time load balancing, peak shaving, and dynamic energy exchange. In contrast, BESS is stationary and has a predetermined storage capacity. They reduce grid congestion more efficiently than BESS by optimizing charging schedules based on pricing signals in load shifting. PHEVs modify their charging profiles to absorb excess renewable energy during curtailment, thereby reducing power spillage. In the context of economic emission dispatch within a microgrid system, PHEVs are superior to BESS due to their potential and capacity to decrease both operational costs and emissions. A sustainable and economical optimization approach for a grid-connected microgrid with load shifting and curtailment rules is presented in this work. While Hong's 2 m Price Estimation Method (PEM) is used to manage the stochastic behavior of uncertain variables, the recently created Circle Search Algorithm (CSA) is used as an optimizing tool. A comparative analysis is conducted by integrating BESS and up to twenty PHEVs alternately to determine the most suitable storage solution. The influence of important parameters including state of charge, battery capacity, and operation time on system performance is investigated via sensitivity analysis. The findings shed light on the dependability, economy, and viability of PHEV-based storage relative to BESS. The suggested method guarantees affordable operation, optimizes energy management, and increases microgrid sustainability, thereby improving grid stability and increasing the use of renewable energy in contemporary power systems.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118896"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289565","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

Superior electrochemical performance of the substituted A2B7-type multiphase La/Y–Mg–Ni/Co/Al alloy electrodes 取代的a2b7型La/ Y-Mg-Ni /Co/Al多相电极具有优越的电化学性能

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118877

Yu.V. Verbovytskyy, I.Yu. Zavaliy

{"title":"Superior electrochemical performance of the substituted A2B7-type multiphase La/Y–Mg–Ni/Co/Al alloy electrodes","authors":"Yu.V. Verbovytskyy, I.Yu. Zavaliy","doi":"10.1016/j.est.2025.118877","DOIUrl":"10.1016/j.est.2025.118877","url":null,"abstract":"<div><div>This paper presents the effect of elemental substitution (La → Y, Ni → Co, and Ni → Al) in La–Mg–Ni alloys on their electrochemical properties. The studied alloys were obtained by sintering and annealing of pressed powder precursor alloys with magnesium. The samples were characterized by X-ray diffraction and energy-dispersive analysis. The synthesized alloys exhibited a multiphase nature, which included intergrowth structures with CaCu<sub>5</sub> and MgSnCu<sub>4</sub> slabs. Electrodes based on La<sub>3</sub>MgNi<sub>12</sub>Co<sub>2</sub>, La<sub>3</sub>MgNi<sub>11</sub>Co<sub>3</sub> and La<sub>2.5</sub>Y<sub>0.5</sub>MgNi<sub>11</sub>Co<sub>3</sub> alloys demonstrated the highest discharge capacity of over 400 mAh/g, and electrodes of the La<sub>2.5</sub>Y<sub>0.5</sub>MgNi<sub>13.5-<em>x</em></sub>Co<sub><em>x</em></sub>Al<sub>0.5</sub> (<em>x</em> = 0–3) series showed the best cyclic stability of over 90 % after 50 cycles for all operating charge-discharge modes. Furthermore, electrodes based on La<sub>3</sub>MgNi<sub>14-<em>x</em></sub>Co<sub><em>x</em></sub> and La<sub>2.5</sub>Y<sub>0.5</sub>MgNi<sub>14-<em>x</em></sub>Co<sub><em>x</em></sub> exhibited high values of high-rate dischargeability (over 90 % at a current density of 1000 mA/g). The ability to fast charge at a current of 1000 mA/g was found in all electrodes. In addition to the above characteristics, Tafel curves, cyclic voltammetric measurements, and calculations of the hydrogen diffusion coefficient were performed and used to analyze additional electrode parameters.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118877"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289570","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

Integrated GaAs-based betavoltaic batteries and graphite lithium-metal battery system for high-efficiency beta radiation energy conversion and storage 集成gaas基β -光伏电池和石墨锂金属电池系统的高效β辐射能量转换和存储

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118848

Haoran Gu , Hongyi Tian , Xinxu Yuan, Jingbin Lu, Haolin Li, Ke Zhang, Hanxiao Yan, Shuaiwen Yi

引用次数: 0

Investigation of aluminum nitride monolayer with biphenylene network as a potential negative electrode for magnesium ion battery 含联苯网络氮化铝单层作为镁离子电池电位负极的研究

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118815

Chou-Yi Hsu , Ali B.M. Ali , Hasan Ali Alsailawi , Pradeep Kumar Singh , Maher Ali Rusho , A.M.A. Mohamed , Shoira Formanova , Ibrahm Mahariq , Sarfaraz Kamangar , Saiful Islam

{"title":"Investigation of aluminum nitride monolayer with biphenylene network as a potential negative electrode for magnesium ion battery","authors":"Chou-Yi Hsu , Ali B.M. Ali , Hasan Ali Alsailawi , Pradeep Kumar Singh , Maher Ali Rusho , A.M.A. Mohamed , Shoira Formanova , Ibrahm Mahariq , Sarfaraz Kamangar , Saiful Islam","doi":"10.1016/j.est.2025.118815","DOIUrl":"10.1016/j.est.2025.118815","url":null,"abstract":"<div><div>In recent years, nanomaterials with zero carbon content have shown significant promise as electrode materials in environmentally friendly systems for energy storage, including batteries containing metal ions. The incorporation of efficient inorganic nanomaterials into energy storages has been considered vital for minimizing carbon emissions and promoting environmental sustainability safety. The current research employed DFT simulations for exploring the magnesium storage properties of an inorganic aluminum nitride featuring a biphenylene network (BP-AlN). The interaction of magnesium atoms was exothermic and closed-shell. The structural integrity of BP-AlN was maintained following magnesium adsorption. The values for the theoretical specific capacity and open-circuit voltage (OCV) of BP-AlN were 1132 mAh g<sup>−1</sup> and 1.12 V, respectively, at highest magnesium concentration. Minor fluctuations in OCV relative to the number of magnesium atoms suggested its ability to provide a nearly stable voltage output. Furthermore, the Bader charge analysis indicated improved charge transport in magnesium-stored systems, which is essential for enhancing the electrochemical performance of batteries. Consequently, BP-AlN can be regarded as an ideal option for advanced eco-friendly energy storage technologies aimed at addressing global warming challenges.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118815"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290151","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

Precise phase control of CuSn alloys on carbon felt via active screen plasma for highly reversible zinc metal anodes 高可逆性锌金属阳极上碳毡CuSn合金的有源屏等离子体精确相位控制

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118875

Yue Zhang , Yuzheng Huang , Xiao Tao , Yuanning Gao , Wubian Tian , Zhiquan Huang , Jian Chen

{"title":"Precise phase control of CuSn alloys on carbon felt via active screen plasma for highly reversible zinc metal anodes","authors":"Yue Zhang , Yuzheng Huang , Xiao Tao , Yuanning Gao , Wubian Tian , Zhiquan Huang , Jian Chen","doi":"10.1016/j.est.2025.118875","DOIUrl":"10.1016/j.est.2025.118875","url":null,"abstract":"<div><div>Three-dimensional carbon felt (3D CF) is a promising host architecture for Zn metal anodes, effectively mitigating dendrite growth and volume fluctuations in aqueous zinc-ion batteries (AZIBs). However, pristine CF exhibits poor zincophilicity and a severe hydrogen evolution reaction (HER), both of which significantly limit its practical application. Although metallic Cu coatings improve wettability and Sn coatings suppress HER, the phase-dependent behavior of CuSn alloys is crucial for balancing these effects but remains insufficiently investigated. Herein, we developed a novel active screen plasma (ASP) technique featuring a unique Cu/Sn wire array to deposit CuSn layers with precisely tunable composition and phase on 3D CF. This approach enables a systematic investigation of the correlation between the phase composition of CuSn alloys and their electrochemical performance.</div><div>The engineered CuSn-32-CF (Cu:Sn volume ratio = 3:2) with the Cu<sub>6</sub>Sn<sub>5</sub> phase exhibited optimal zincophilicity—evidenced by the lowest Zn<sup>2+</sup> nucleation overpotential (η<sub>nu</sub> = 21.1 mV), a near-0° contact angle, and significantly suppressed HER. Consequently, the Zn deposited on CuSn-32-CF displayed a uniform, dense, and dendrite-free morphology. Symmetric cells fabricated with Zn@CuSn-32-CF exhibited exceptional cycling stability, maintaining stable operation for 400 h under conditions of 0.5 mA cm<sup>−2</sup> and 0.5 mAh cm<sup>−2</sup>. Full cells assembled with Zn@CuSn-32-CF anodes and α-MnO<sub>2</sub> cathodes delivered a high specific capacity (300.1 mAh g<sup>−1</sup> at 0.2 A g<sup>−1</sup>) and retained 82.8 % of their initial capacity after 2000 cycles at 2 A g<sup>−1</sup>. This work proposes a facile and efficient ASP strategy for fabricating high-performance alloy-modified 3D Zn anodes via precise interfacial phase control.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118875"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289568","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

Copper foils for high-energy-density lithium batteries: Composite vs. ultrathin 用于高能量密度锂电池的铜箔：复合与超薄

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118917

Ziyu Chen, Han Fu, Chen Zhang, Jiawen Chen, Ying Xu, Yuqin Zheng, Yu Zhong, Xiuli Wang, Changdong Gu, Jiangping Tu

{"title":"Copper foils for high-energy-density lithium batteries: Composite vs. ultrathin","authors":"Ziyu Chen, Han Fu, Chen Zhang, Jiawen Chen, Ying Xu, Yuqin Zheng, Yu Zhong, Xiuli Wang, Changdong Gu, Jiangping Tu","doi":"10.1016/j.est.2025.118917","DOIUrl":"10.1016/j.est.2025.118917","url":null,"abstract":"<div><div>The escalating demand for higher energy density in lithium-ion batteries (LIBs) and anode-free lithium metal batteries (AFLMBs) has driven the exploration of lightweight current collectors (CCs). Conventional Cu foils face critical limitations in cost and thickness reduction, necessitating innovative alternatives. Composite Cu foils have emerged as a promising solution, offering ultra-lightweight design, orthogonal conductivity, and intrinsic safety. However, they concurrently face challenges such as interfacial instability, electronic transport inefficiencies, and immature manufacturing scalability. This study systematically compares PET-based composite Cu foils (PET<img>Cu) with ultrathin Cu foils in graphite (Gr)-based LIBs and AFLMBs. PET-Cu shows higher tensile strength and buffers Gr volume expansion, enhancing capacity retention to 93.9 % after 290 cycles in LIBs, though its insulating layer increases interfacial resistance. In AFLMBs, PET-Cu enables uniform Li deposition initially but succumbs to rapid capacity decay due to interfacial deterioration. While excelling in energy density, PET-Cu faces trade-offs in conductivity and cyclability. The study highlights the need for interface engineering and scalable manufacturing to optimize composite CC design.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118917"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290150","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

Machine learning-based prediction of high-entropy alloys for hydrogen storage with optimized thermodynamic and kinetic parameters 基于机器学习的高熵储氢合金的优化热力学和动力学参数预测

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118865

Bashista Kumar Mahanta , Sanjeev Kumar , Sunil Kumar Pathak , Shailesh Kumar Singh

{"title":"Machine learning-based prediction of high-entropy alloys for hydrogen storage with optimized thermodynamic and kinetic parameters","authors":"Bashista Kumar Mahanta , Sanjeev Kumar , Sunil Kumar Pathak , Shailesh Kumar Singh","doi":"10.1016/j.est.2025.118865","DOIUrl":"10.1016/j.est.2025.118865","url":null,"abstract":"<div><div>High-entropy alloys (HEAs), characterized by their multi-principal element compositions, have emerged as promising candidates for solid-state hydrogen storage due to their tunable structures and potential for reversible hydrogen absorption at ambient conditions. However, the vast compositional space of HEAs presents a major challenge in identifying optimal alloys with favourable storage capacity, kinetics, and thermodynamics. In this work, we propose a machine learning-assisted framework for predicting and optimizing HEA systems for hydrogen storage. A Machine Learning based Evolutionary Deep Neural Network (EvoDN2) was trained on experimental data, and tri-objective optimization was performed to maximize hydrogen storage capacity, enhance absorption/desorption kinetics, and minimize activation energy for hydrogen release. Multi-objective algorithms (NSGA-II and cRVEA) were employed to identify promising compositions. Among the predicted systems, the alloy Hf₃₄La₆.₈₁Mg₂₁.₅₃Ta₂₇V₁₀.₆₆ demonstrated the best performance, with a hydrogen storage capacity of 3.05 wt% at ambient conditions, an activation energy of 23.59 kJ·mol<sup>−1</sup>H₂, and a favourable absorption-to-desorption time ratio of 1.39. Several other alloys, including CoLaTaTi and FeLaNbTiV, also achieved capacities exceeding 3 wt% with competitive kinetics. These results underscore the potential of targeted compositional optimization for achieving a synergistic balance between storage capacity, activation energy, and absorption-to-desorption time ratio, thereby accelerating the discovery of high-performance HEAs for hydrogen storage applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118865"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290047","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

Small-signal modeling of grid-connected energy storage system considering impedance characteristics of battery 考虑电池阻抗特性的并网储能系统小信号建模

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118874

Ruohuan Yang, Zhanzhan Qu, Meng Niu, Yating Liu, Hao Liu

{"title":"Small-signal modeling of grid-connected energy storage system considering impedance characteristics of battery","authors":"Ruohuan Yang, Zhanzhan Qu, Meng Niu, Yating Liu, Hao Liu","doi":"10.1016/j.est.2025.118874","DOIUrl":"10.1016/j.est.2025.118874","url":null,"abstract":"<div><div>Electrochemical energy storage systems (ESSs) are widely investigated for grid stability enhancement. However, the self-stability of ESSs remains unclear and faces critical converter-driven instability risks under weak grid conditions. Prevailing small-signal models inaccurately simplify the DC-link of ESSs as ideal voltage/current sources, neglecting the variations of battery equivalent voltage and impedance induced by state-of-energy (SOE), cycling, etc. This paper proposes an enhanced <em>dq</em>-impedance model incorporating battery Thevenin equivalent circuit dynamics to resolve this gap. The model quantifies DC-AC coupling through small-signal linearization of battery-electronic interactions, validated via hardware experiments on an 800 V/150 kW lithium-ion battery cluster and simulations. Simulation results confirm the accuracy of the proposed model in shaping ESS impedance characteristics, with significant error reduction compared to conventional approaches neglecting battery dynamics. When deployed for instability risk assessment, the proposed model achieves 69.93 % ∼ 82.71 % higher accuracy in identifying oscillation risks by substantially narrowing misjudgment prediction ranges in grid strength regions, and therefore the risks of stable operation of energy storage can be more accurately grasped under weak grids via the proposed ESS impedance modeling approach.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118874"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289559","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

Bidding strategy for photovoltaic storage station in the electricity spot market based on photovoltaic power prediction 基于光伏发电功率预测的光伏储能电站现货市场竞价策略研究

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118854

Mao Yang , Yiming Chen , Peng Sun , Jinxin Wang , Yitao Li , Xin Su

{"title":"Bidding strategy for photovoltaic storage station in the electricity spot market based on photovoltaic power prediction","authors":"Mao Yang , Yiming Chen , Peng Sun , Jinxin Wang , Yitao Li , Xin Su","doi":"10.1016/j.est.2025.118854","DOIUrl":"10.1016/j.est.2025.118854","url":null,"abstract":"<div><div>In recent years, with the continuous expansion of the scale of China ‘s new energy units, the proportion of new energy participating in the electricity spot market (ESM) has been increasing. High-precision short-term (ST) and ultra-short-term (UST) prediction results of new energy are needed to meet the needs of the ESM, and the operation mechanism of new energy prediction participating in the ESM needs to be improved. Photovoltaic power prediction (PPP) is the decision-making basis for photovoltaic storage station (PSS) to participate in the ESM, and its results directly affect the revenue of the PSS in the ESM. However, the coupling of PPP in the ESM is not clear, and the bidding strategy (BS) of PSS considering the deviation between real-time (RT) and day-ahead (DA) PPP is not clear. To this end, this paper first proposes a PPP method based on TCN-LSTM-Attention, and combines the scheduling requirements of the ESM to form a multi-time scale collaborative PPP and ESM clearing system. Then, this paper proposes a two-stage power-time division BS for PSS to participate in the ESM, considering how PPP results at different time scales influence the day-ahead market (DAM) pre-clearing and real-time market (RTM) formal clearing processes. Based on the coupling between photovoltaic and energy storage, this paper constructs a two-stage two-layer model for PSS to engage in volume bidding and maximize their profits. Finally, taking the measured data of PSS in Mengxi area of China as an example, the simulation results showed that the prediction model proposed in this paper achieved high accuracy in both ST and UST prediction, and the proposed two-stage BS considering the difference between DAM and RTM time scales can make the PSS have more abundant scheduling space to stabilize the deviation penalty cost caused by the fluctuation of photovoltaic output and maximize the profit of the stations under the condition of satisfying the actual market operation.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118854"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289564","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

One-tube self-activation of hydrogel for the preparation of hydrophilic N, S co-doped hierarchical porous carbon: Formation mechanism and supercapacitor performance 制备亲水性N， S共掺杂层叠多孔碳的单管自活化水凝胶：形成机理和超级电容器性能

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-15 DOI: 10.1016/j.est.2025.118770

Xutao Ning , Jia Yi , Bin Zeng , Hongxia Peng , Ming Zhang , Jinfeng Cai

{"title":"One-tube self-activation of hydrogel for the preparation of hydrophilic N, S co-doped hierarchical porous carbon: Formation mechanism and supercapacitor performance","authors":"Xutao Ning , Jia Yi , Bin Zeng , Hongxia Peng , Ming Zhang , Jinfeng Cai","doi":"10.1016/j.est.2025.118770","DOIUrl":"10.1016/j.est.2025.118770","url":null,"abstract":"<div><div>The porous carbon of supercapacitors usually is synthesized via an activation procedure based on traditional activators, such as KOH, H<sub>2</sub>O, and CO<sub>2</sub>. Herein, a self-activation strategy is proposed to prepare N/S co-doped hierarchical porous carbons (NSHPC). Poly(2-acrylamide-2-methylpropane sulfonic acid potassium) (PAMPSK) hydrogels as precursors are obtained via a self-polymerized reaction, and they are annealed at 800 °C to result in NSHPC-800 with the best properties. NSHPC-800, used as electrode materials for supercapacitors, exhibits a prominent rate capability of 256.2 F g<sup>−1</sup> at 50 A g<sup>−1</sup>. Moreover, the symmetric supercapacitor exhibits a high energy density of 7.08 Wh kg<sup>−1</sup> at ultrahigh power density of 25,000 W kg<sup>−1</sup>. Two capacitors are connected in series to light up a red light emitting diode for 60 s. This work may provide a new strategy for the synthesis of hydrophilic porous carbons, as well as a systematic investigation of the self-activation process and mechanism.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118770"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290080","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