Journal of energy storage最新文献

{"title":"Morphology engineering of NiCo2S4 for supercapacitor applications: A study on spherical and cubic structures","authors":"Eshagh Noormohammadi ,&nbsp;Leila Naji","doi":"10.1016/j.est.2025.117580","DOIUrl":"10.1016/j.est.2025.117580","url":null,"abstract":"<div><div>This study investigates the effect of solvent composition on the morphology and electrochemical performance of NiCo₂S₄ (NCS) grown on nickel foam <em>via</em> a hydrothermal method. Different morphologies were prepared to explore how shape and structure affect electrochemical properties such as surface area and ion transport. By tailoring the morphology, it is possible to enhance the material's charge storage capacity for supercapacitor applications. By varying the water-to-ethylene glycol (EG) ratio, two distinct morphologies were obtained. A higher ratio (2:1) formed aggregated spherical particles (S-NCS), while a lower ratio (1:2) produced plate-like cubic shapes (C-NCS). A comprehensive XRD, FESEM, EDS, and elemental mapping techniques confirmed the successful synthesis of these morphologies. Structural analyses revealed that solvent ratio influenced crystallinity and particle size, with C-NCS exhibiting smaller crystallites and lower microstrain. Electrochemical tests revealed that S-NCS outperformed C-NCS, delivering a higher specific capacity (1112C/g <em>vs.</em> 898C/g at 1 A/g) and better cycling stability (86.4 % <em>vs.</em> 81.2 % retention after 5000 cycles at 8 A/g). In comparison, the asymmetric supercapacitor device of S-NCS//AC exhibited enhanced performance, achieving a maximum energy density of 68.8 Wh/kg at a power density of 400 W/kg, and maintaining a notable energy density of 22.2 Wh/kg even at a high-power density of 16 kW/kg. It also retained 83.1 % of its initial capacity after 5000 cycles at a current rate of 8 A/g. These results demonstrate that controlling NCS morphology through solvent ratio tuning significantly enhances supercapacitor performance.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117580"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534869","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}

{"title":"Hydration fronts in packed particle beds of salt hydrates II: The role of temperature gradients and implications for heat storage","authors":"Stan de Jong ,&nbsp;Olaf Adan ,&nbsp;Henk Huinink","doi":"10.1016/j.est.2025.117558","DOIUrl":"10.1016/j.est.2025.117558","url":null,"abstract":"<div><div>Thermo-Chemical Energy Storage (TCES) based on salt hydrate particles is promising for compact long term heat storage in the built environment. The hydration transition of salt hydrates is used, where water molecules from the gas phase are incorporated in the crystal lattice of the salt, resulting in heat output. The aim of this study was to develop an easy-to-use analytical model for the hydration process of a bed of millimetre sized salt particles inside a TCES reactor, which describes simultaneously the water vapour concentration distribution, the conversion profiles and temperature gradients in the bed. The model is an extension of a previously developed isothermal model for hydration fronts. The model describes advective transport of water vapour towards the hydration front, where the water vapour reacts with the salt particles. This reaction inside particles is diffusion limited. Analytical solutions have been obtained for the hydration front travelling through the particle bed: the front velocity and width. We show that temperature gradients significantly slow down the motion of the hydration front and reduce the width of the front. Front widths for salt hydrate particles under conditions relevant for TCES are of the order of tens of centimeters, which is comparable to the typical size of presently studied TCES reactors. Only when the hydration front is travelling inside the reactor, it will be discharged at a high constant power. Therefore, these reactors will have a short constant power phase (CPP), while most of the discharge happens in the so-called falling power phase (FPP), where the power is continuously dropping and the output temperature too. The model shows that the CPP phase can be prolonged by either increasing the reactor length, decreasing the flow rate or decreasing the particle size. The model enables engineers to do quick calculations for the first design of a TCES reactor.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117558"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534871","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}

{"title":"Fe3O4/N-doped carbon and MnO/N-doped carbon composites prepared from manganese ore tailings as high-performance anode materials for sodium-ion batteries","authors":"Wenhan Xu ,&nbsp;Yanwei Li ,&nbsp;Zhenghong Zhu ,&nbsp;Yiqian Li ,&nbsp;Bin Huang ,&nbsp;Jianwen Yang ,&nbsp;Shunhua Xiao ,&nbsp;Jinhuan Yao","doi":"10.1016/j.est.2025.117597","DOIUrl":"10.1016/j.est.2025.117597","url":null,"abstract":"<div><div>Efficient and rational use of manganese ore tailings is valuable to environmental protection and economic development. Herein, the Fe₃O₄/nitrogen-doped carbon (Fe₃O₄/C) and MnO/nitrogen-doped carbon (MnO/C) composites are synthesized by a two-step precipitation process with manganese ore tailings as the Fe and Mn resources. The sodium storage properties of the two composites as anodes were investigated in depth. The Fe₃O₄/C and MnO/C exhibit outstanding cyclic performance of 251.6 and 412.5 mAh g⁻¹ after 1000 and 500 cycles at 0.5 A g⁻¹, respectively. Even at 5.0 A g⁻¹, the Fe₃O₄/C and MnO/C still deliver specific capacities of 147.2 and 320.5 mAh g⁻¹, respectively. Compared with pure Fe₃O₄ and MnO, the improved sodium storage performance of Fe₃O₄/C and MnO/C composites can be attributed to the introduction of the N-doped carbon matrix. This carbon matrix not only mitigates the agglomeration of metal oxide nanoparticles but also enhances the electrical conductivity of the composites. Moreover, it promotes the reactivation of Fe₃O₄/C and MnO/C electrodes during repeated cycling. This work gives guidance for the high-value utilization of manganese ore tailings and the fabrication of high-performance metal oxide anodes for sodium-ion batteries.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117597"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534945","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}

{"title":"Performance analysis and structural optimization of shell and tube phase change thermal storage devices based on industrial flue gas waste heat recovery","authors":"Danyang Liu,&nbsp;Jun Shen,&nbsp;Jian Li,&nbsp;Hongfei Zheng,&nbsp;Yunfei Zhang,&nbsp;Xu Chen","doi":"10.1016/j.est.2025.117576","DOIUrl":"10.1016/j.est.2025.117576","url":null,"abstract":"<div><div>Efficient recovery of high-temperature flue gas waste heat is critical for industrial energy sustainability, yet remains challenging due to the poor thermal conductivity of phase change materials (PCMs) in conventional thermal storage systems. This study introduces a novel shell-and-tube phase change thermal storage device, with a focus on analyzing the effects of different eccentric distances and flue gas pipeline spiral fin configurations on the thermal performance of the thermal storage device. The performance of the smooth pipe, the channel pipe, and the finned pipe in recovering waste heat from high-temperature flue gas is compared and their thermal storage capacities are explored. Additionally, a performance indicator called STESR is introduced to assess the impact of various design parameters on the thermal storage capacities of the thermal storage devices. Research results indicate that increasing the eccentric distance of the flue gas pipeline can significantly speed up the melting and solidification processes of phase change materials. Optimizing the design of flue gas pipeline fins can further enhance the melting process of PCM. However, excessively increasing the number or height of fins can lead to performance improvement bottlenecks. The channel pipe is more effective than smooth pipe in accelerating the melting process and is easier to work with, making them better suited for practical engineering applications. The STESR value offers an intuitive and effective means of evaluating performance. Case 6 shows the best performance in terms of STESR value, achieving a 65.2 % increase compared to the smooth pipe. Ultimately, case 1 emerges as the optimal design solution, with a 66.8 % increase in melting time and a 47.2 % increase in STESR value compared to the smooth pipe. This makes it well-suited for efficient thermal energy storage and flue gas waste heat recovery applications. This study provides a theoretical basis and reference for optimizing the design and practical application of phase change thermal storage devices.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117576"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534948","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}

{"title":"Fast oxidation fabrication of nanosized BiOCl-embedded 1D carbon nanofibers as a novel aqueous zinc-ion batteries cathode","authors":"Caixia Zhu ,&nbsp;Xiang Bai ,&nbsp;Yierxiati Dilixiati ,&nbsp;Zheng Zhang ,&nbsp;Chengyuan Dong ,&nbsp;Li Yang ,&nbsp;Jiaxu Zhang","doi":"10.1016/j.est.2025.117611","DOIUrl":"10.1016/j.est.2025.117611","url":null,"abstract":"<div><div>BiOCl is recognized as one of the promising candidates for aqueous zinc ion batteries (ZIBs) due to its large layer space and high theoretical capacity, but its semiconducting nature and large volume change result in low capacity and poor cycling stability. Herein, BiOCl nanosheets tightly anchored on carbon fibers (BiOCl@CF) self-supported electrode was prepared via a fast oxidation method that just infiltrates Bi@CFs in a solution (V_H2O2:V_HCl = 49:1) for 9 min. Owing thin BiOCl nanosheets with the increased adsorption energy bring accelerated ion transfer, while the cross-linked conductive networks of CFs not only improve charge transfer but also remiss volume expansion during cycling. These features endow BiOCl@CF with outstanding capacity (118.8 mAh g⁻¹ after 200 cycles at 0.2 A g⁻¹), excellent rate performances (67.0 mAh g⁻¹ at 1 A g⁻¹), and long cycle life (97.1 % capacity retention rate over 2000 cycles). Importantly, the reaction mechanism of BiOCl@CF was confirmed by many ex-situ technologies, revealing the conversion storage zinc process. Overall, this work provides a new perspective for the development of high-performance cathode materials for ZIBs.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117611"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534874","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}

{"title":"Mn-MOF-derived litchi-like MnO/MnS@C heterojunction cathode material for high-performance aqueous zinc-ion batteries","authors":"Mingyu Han ,&nbsp;Yiying Jia ,&nbsp;Ruoyu Wang ,&nbsp;Wenqiang Wang ,&nbsp;Ming Sun ,&nbsp;Gengchao Wang","doi":"10.1016/j.est.2025.117605","DOIUrl":"10.1016/j.est.2025.117605","url":null,"abstract":"<div><div>Manganese-based materials are commonly employed as cathodes in rechargeable aqueous zinc-ion batteries (AZIBs) due to their high theoretical capacity, minimal toxicity and low cost. However, poor conductivity, sluggish charge diffusion kinetics, and unfavorable lattice distortion caused by Jahn-Teller effects are still hindering their practical application. Herein, a litchi-like MnO/MnS heterojunction composite cathode material (MnO/MnS@C) was prepared through carbonization-sulfidation derived from spherical manganese-based metal-organic framework (Mn-MOF). The litchi-like morphology of MnO/MnS originates from hydrothermal sulfidation etching, which facilitates the formation of numerous electrochemically active heterointerfaces. Benefiting from the synergistic effects of built-in electric fields in heterojunctions and abundant ionic defects, the MnO/MnS@C demonstrates significantly improved conductivity and charge transfer kinetics. Furthermore, the conformal carbon layer ensures the structural stability of the MnO/MnS@C heterojunction. As a result, the as-prepared MnO/MnS@C cathode for AZIBs delivers a specific capacity of 238 mAh g⁻¹ at 0.3 A g⁻¹, with 175 mAh g⁻¹ at 2.0 A g⁻¹, and the capacity retention rate is 82.7 % after 4000 cycles. Ex-situ characterization reveals the charge storage mechanism of MnO/MnS@C, providing valuable insights for developing high-performance zinc-ion battery cathode materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117605"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534870","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}

{"title":"Dielectric barrier discharge plasma sulfonated carbon nanotube modified PVDF-TrFE-CFE copolymer electrolyte for high-performance flexible solid-state lithium metal batteries","authors":"Zhuolin Huang ,&nbsp;Bin Hao ,&nbsp;Zhongqing Jiang ,&nbsp;Qin Lei ,&nbsp;Weiheng Chen ,&nbsp;Shanshan Chen ,&nbsp;Xiaoping Chen ,&nbsp;Zhong-Jie Jiang ,&nbsp;Guangliang Chen ,&nbsp;Jinrui Ye","doi":"10.1016/j.est.2025.117596","DOIUrl":"10.1016/j.est.2025.117596","url":null,"abstract":"<div><div>Herein, a method for in-situ sulfonation of carbon nanotubes (CNTs) utilizing dielectric-barrier discharge (DBD) plasma treatment has been meticulously designed that introduces sulfonic acid functional groups while preserving the structural integrity of the CNT walls. These sulfonated CNTs are subsequently incorporated into a poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (PVDF-TrFE-CFE) copolymer that is dispersed with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) to fabricate a polymer solid-state electrolyte (PSE) exhibiting excellent ionic conductivity, thermal conductivity, and mechanical properties. In this PSE system, the PVDF-TrFE-CFE copolymer enhances the electrolyte's mechanical properties and lithium salt solubility, while the high content of LiTFSI with low dissociation energy provides additional lithium-ion transport pathways. The DBD plasma in-situ sulfonated CNT fillers enhance the electrochemical and thermodynamic stability of the PSE. This dual-doped PSE composed of LiTFSI and sulfonated CNTs exhibits an ionic conductivity of 1.67 × 10⁻⁴ S cm⁻¹ at 25 °C and a high critical current density (CCD) of up to 2.0 mA cm⁻². Furthermore, the Li|PVDF-T-C/p-CNTs-60|Li symmetric cell constructed using the PSE doped with sulfonated CNTs optimized by DBD plasma sulfonation time (p-CNTs-60) exhibits low polarization at 0.1 mA cm⁻² and 0.2 mA cm⁻², thereby achieving stable charge-discharge cycles for over 3600 h and 3000 h, respectively. The full cell Li|PVDF-T-C/p-CNTs-60|LFP shows impressive capacity retention at 90.2 % along with a coulombic efficiency of 99.75 % following 300 cycles. Similarly, the full cell Li|PVDF-T-C/p-CNTs-60|NCM811 exhibits a capacity retention of 90.96 % and maintains a coulombic efficiency of 99 % after 250 cycles.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117596"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534949","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}

{"title":"ZnFe2O4 nanoparticles decorated MoS2 nanosheets for high-performance supercapacitors","authors":"Zeyad M. Abdulhamid ,&nbsp;A.C. Lokhande ,&nbsp;Aasif A. Dabbawala ,&nbsp;Daniel Choi ,&nbsp;Nirpendra Singh ,&nbsp;Kyriaki Polychronopoulou ,&nbsp;Dalaver H. Anjum","doi":"10.1016/j.est.2025.117544","DOIUrl":"10.1016/j.est.2025.117544","url":null,"abstract":"<div><div>This study presents a significant advancement in electrochemical energy storage by designing and synthesizing MoS₂/ZnFe₂O₄ Nanocomposites (NCs) with exceptional electrochemical properties. The NCs were synthesized using a hydrothermal process, combining MoS₂ Nanosheets (NS) with ZnFe₂O₄ Nanoparticles (NPs). This design leverages the synergistic benefits of both materials, resulting in superior capacitive performance compared to previous reports. The optimized 1:1 molar ratio of MoS₂/ZnFe₂O₄ NC demonstrated a specific capacitance of 2076.9 F/g at 25 A/g and retained 94.3 % of its capacitance after 2500 cycles. The MoS₂ NS acts as a substrate to prevent ZnFe₂O₄ NP agglomeration, while the ZnFe₂O₄ NPs inhibit MoS₂ NS restacking. Density functional theory (DFT) calculations reveal that the MoS₂/ZnFe₂O₄ interface introduces new energy states near the Fermi level, boosting the heterostructure's capacitance. With their enhanced electrochemical performance, these NCs show great potential for diverse advanced energy storage and conversion systems.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117544"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534873","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}

{"title":"Interface engineering of Si/C microparticles with Al2O3 layer enabling high-areal-capacity lithium-ion batteries","authors":"Dan Lv ,&nbsp;Lili Yang ,&nbsp;Runfeng Song ,&nbsp;Mingtao Ding ,&nbsp;Jie Liu ,&nbsp;Wenbin Hu ,&nbsp;Cheng Zhong","doi":"10.1016/j.est.2025.117543","DOIUrl":"10.1016/j.est.2025.117543","url":null,"abstract":"<div><div>Silicon (Si)-based anode materials have been regarded as a viable alternative to replace traditional graphite owing to its high theoretical capacity. Nevertheless, the industrial production of Si nanoparticles (Si NPs) is hindered by low tap density and inferior areal capacity. Here, the hard carbon supported Si NPs are encapsulated by soft carbon and Al₂O₃ to fabricate HC@Si@SC@A sample for high performance lithium-ion batteries (LIBs). Micrometer-sized HC serves as size regulator for Si NPs and SC serves to improve electric conductivity and suppress volume changes. With the existence of Al₂O₃, a thin and inorganic components-rich solid electrolyte interphase (SEI) has formed, greatly maintaining the stability of electrode during cycling. Therefore, the HC@Si@SC@A anode delivers an ultrahigh discharge capacity of 14.5 mAh cm⁻² at 0.2 A g⁻¹. It can show excellent performance as an anode of full cells with the NCM811 as the cathode material.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117543"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534953","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}

{"title":"Heterostructured Ti3C2Tx loaded NiCoCu-based layered double hydroxide as a high-performance cathode for hybrid supercapacitors","authors":"Disong Wang ,&nbsp;Xiaohui Guan ,&nbsp;Liu Yang ,&nbsp;Baoyang Tian ,&nbsp;Jiqing Zhang ,&nbsp;Ruotong Li ,&nbsp;Tao Zou ,&nbsp;Penggang Yin ,&nbsp;Guangsheng Wang","doi":"10.1016/j.est.2025.117581","DOIUrl":"10.1016/j.est.2025.117581","url":null,"abstract":"<div><div>Layered double hydroxides (LDHs) are regarded as a promising electrode material for supercapacitors. Nevertheless, their large-scale application is impeded by several drawbacks, such as low electronic conductivity, limited electroactive sites, and poor cycling stability. Two-dimensional titanium-based carbide (Ti₃C₂T_x) loading NiCoCu-based layered double hydroxide heterostructures (Ti₃C₂T_x@NiCoCu-LDH), which feature a layered and cross-linked network, were prepared to improve the electrochemical performance of NiCoCu-LDH. The layered network structure of Ti₃C₂T_x@NiCoCu-LDH enhances active site exposure and accommodates volume changes during cycling. Both the specific capacitance and structural stability of the electrode are improved. Additionally, Ti₃C₂T_x boosts the electronic conductivity of LDHs and accelerates the kinetics of electrochemical reactions. Ti₃C₂T_x@NiCoCu-LDH exhibits a high specific capacity of 1891.4 F·g⁻¹ (262.2 mAh·g⁻¹) at 1 A·g⁻¹ and exceptional cycling stability. When assembled into Ti₃C₂T_x@NiCoCu-LDH//activated carbon (AC) hybrid supercapacitor, it demonstrates a high energy density of 35.5 Wh·kg⁻¹ at 826.8 W·kg⁻¹. In addition, the supercapacitor maintains 81.6 % of initial capacitance after 20,000 cycles. This work has proposed a promissing MXene-based composite cathode for high-performance hybrid supercapacitors.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117581"},"PeriodicalIF":8.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534872","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}