Journal of energy storage最新文献

High entropy oxide as an efficient electrocatalyst of liquid-solid conversion processes in lithium‑sulfur batteries

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.116040

Yuehan Hao , Yiqian Li , Usman Ali , Yuan Fang , Zhanshuang Jin , Lingyu Zhang , Lu Li , Bingqiu Liu , Chungang Wang

引用次数: 0

A comparative study of four different species bamboo culms as a carrier for thermal energy storage through phase change material impregnation

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.115903

Fabrício Rezende Fontenelle , Túlio Caetano Guimarães , Leonardo Seibert Kuhn , Romildo Dias Toledo Filho , Lourival Marin Mendes , Antonio Caggiano , Saulo Rocha Ferreira

{"title":"A comparative study of four different species bamboo culms as a carrier for thermal energy storage through phase change material impregnation","authors":"Fabrício Rezende Fontenelle , Túlio Caetano Guimarães , Leonardo Seibert Kuhn , Romildo Dias Toledo Filho , Lourival Marin Mendes , Antonio Caggiano , Saulo Rocha Ferreira","doi":"10.1016/j.est.2025.115903","DOIUrl":"10.1016/j.est.2025.115903","url":null,"abstract":"<div><div>Bamboo’s mechanical strength make it an ideal renewable material for sustainable construction, while its natural porosity make it a potentially suitable carrier for phase change materials (PCMs). This study explored the use of bamboo culms from four different species (<em>Bambusa tuldoides, Dendrocalamus giganteus, Guadua augustifolia, and Phyllostachys aurea</em>) as temperature regulation materials in buildings through the impregnation of PCMs. Three types of bamboo samples were prepared: raw culms, culms coated with polyurethane resin (PU), and culms impregnated with PCM and coated with PU to prevent PCM leakage. Thermal performance tests demonstrated that PCM-impregnated bamboo effectively stabilized temperature fluctuations, with <em>Dendrocalamus giganteus</em> showing the highest PCM impregnation (14.88%) and the most significant temperature regulation efficiency due to its larger culm dimensions and lower density. Microscopy, thermal, and chemical analyses confirmed the structural integrity of the bamboo after PCM impregnation and the inert chemical interaction between PCM and bamboo. These findings suggest that PCM-impregnated bamboo culms can serve as effective, sustainable materials for energy-efficient building applications, reducing the reliance on energy-intensive cooling systems.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 115903"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520725","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 novel high voltage SeSb positive electrode material for high-energy-density liquid metal battery

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.116032

Yaozong Yang , Zehao Li , Hongliang Xie , Yipeng Liu , Tingxuan Li , Peng Chu , Hailei Zhao

{"title":"A novel high voltage SeSb positive electrode material for high-energy-density liquid metal battery","authors":"Yaozong Yang , Zehao Li , Hongliang Xie , Yipeng Liu , Tingxuan Li , Peng Chu , Hailei Zhao","doi":"10.1016/j.est.2025.116032","DOIUrl":"10.1016/j.est.2025.116032","url":null,"abstract":"<div><div>Liquid metal battery (LMB) has gained significant notice in the field of large-scale energy storage due to their appealing cost-effectiveness, excellent cycle stability, and ultralong service lifetime. However, achieving high energy density in LMB still remains a significant challenge. Metalloid selenium (Se) is a competitively high voltage positive electrode candidate for LMB, but its application has been impeded by poor electronic conductivity and high solubility in molten salt electrolyte. Herein, we first demonstrate a high voltage LMB system with high energy density achieved by integrating metalloid Se alloyed with metallic antimony (Sb) as the positive electrode. The Se<img>Sb alloying strategy significantly improves the electronic conductivity of Se-based electrodes and effectively reduces the solubility of Se in the molten salt electrolyte. The lithium (Li)||Se-Sb cell presented in this study exhibits a remarkable discharge medium voltage of approximately 1.65 V and an impressive energy density of 346.2 Wh kg<sup>−1</sup> within 1.0–2.2 V, surpassing most of previously reported LMBs. These promising findings expand the range of positive electrode materials available for LMBs and create a novel avenue for high voltage liquid metal battery with enhanced energy density and stability.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 116032"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520786","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 strategy to fabricate flexible freestanding sandwich-like film based on sulfur heterocyclic quinone polymer for flexible solid-state Zn-ion battery

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.116044

Chao Wang , Zhaoxia Song , Quan Zhou , Guanhua He , Qianwen Zhou , Zhongfu Zhao , Wei Liu , Yujiang Song

{"title":"A strategy to fabricate flexible freestanding sandwich-like film based on sulfur heterocyclic quinone polymer for flexible solid-state Zn-ion battery","authors":"Chao Wang , Zhaoxia Song , Quan Zhou , Guanhua He , Qianwen Zhou , Zhongfu Zhao , Wei Liu , Yujiang Song","doi":"10.1016/j.est.2025.116044","DOIUrl":"10.1016/j.est.2025.116044","url":null,"abstract":"<div><div>A challenge faced by quinone polymers for application in flexible solid-state Zn-ion batteries (FSZIBs) is how to design and fabricate their flexible free-standing electrodes with high capacity and excellent cycling stability. Here, a two-step engineering strategy including fabrication of polymer nanowire and construction of sandwich-structured film was developed to achieve a flexible freestanding film based on sulfur heterocyclic quinone polymer (SHQP) for FSZIBs. A core/sheath structured carbon nanotube@SHQP(CNT@SHQP) nanowire was first synthesized by the interfacial polymerization method, in which the π-π interaction between SHQP and CNT promoted the self-assembly of SHQP to form thin nanolayers around CNT. This unique nanostructure was effective in increasing active sites, accelerating electron transfer, shortening the diffusion path of Zn<sup>2+</sup> ions, buffering the volume variation while simultaneously enhancing the structural stability of SHQP nanolayers. More importantly, a sandwich-like hierarchical film of reduced graphene oxide|CNT@SHQP|reduced graphene oxide (rGO|CNT@SHQP|rGO) was designed and fabricated using CNT@SHQP nanowires and GO nanosheets through vacuum filtration and further mild reduction. The flexible Zn//rGO|CNT@SHQP|rGO battery exhibited a high capacity (139.9 mA h g<sup>−1</sup> at 0.1 A g<sup>−1</sup>) and long-term cycling stability (76.2 % of the initial capacity after 2000 cycles at 1 A g<sup>−1</sup>). This strategy can be further extended for fabricating flexible free-standing films of other quinone polymers, which have great potential application in wearable electronics.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 116044"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520788","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 novel multi-objective optimization approach for resilience enhancement considering integrated energy systems with renewable energy, energy storage, energy sharing, and demand-side management

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.115966

Kasra Shafiei, Ali Seifi, Mehrdad Tarafdar Hagh

{"title":"A novel multi-objective optimization approach for resilience enhancement considering integrated energy systems with renewable energy, energy storage, energy sharing, and demand-side management","authors":"Kasra Shafiei, Ali Seifi, Mehrdad Tarafdar Hagh","doi":"10.1016/j.est.2025.115966","DOIUrl":"10.1016/j.est.2025.115966","url":null,"abstract":"<div><div>Achieving resilience enhancement and carbon neutrality is a pressing global goal, and integrated energy systems (IESs) are emerging as a promising solution to meet the growing energy demands of diverse users sustainably and economically. However, the intricate structure and energy flow couplings within IESs present significant challenges for system optimization. This study introduces a novel multi-objective optimization model for designing and enhancing a Renewable Integrated Energy System (RIES) that incorporates renewable energy sources, energy storage technologies, and energy sharing mechanisms. The proposed method combines a gravity search algorithm (GSA) with a multi-objective optimization framework to enhance resilience, carbon reduction, and economic benefits. By integrating energy storage and renewable energy, the RIES minimizes energy losses and addresses the mismatch between renewable energy generation and user demand. The effectiveness of the proposed system was verified through a case study based on a standard IEEE test system. The experimental results demonstrate that adding wind turbines reduces system generation by 6.61 %, energy storage integration further reduces generation by 9.4 %, and including photovoltaics achieves a total reduction of 10.8 %. Furthermore, the proposed demand response program (DRP) effectively balances electricity supply and demand, achieving a 45 % reduction in the daily peak load. Optimization results also reveal that renewable energy utilization improves by 0.77 %, highlighting the enhanced operational efficiency and resilience of the system. This work presents a comprehensive framework for optimizing integrated energy systems, offering theoretical guidance and practical solutions for energy planners and policymakers.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 115966"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521115","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

Enhancing sodium ionic conductivity: An interface bridging strategy for Na3Zr2Si2PO12 solid-state electrolyte

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.116046

Xiaolong Xu, Zizheng Ai, Zhiliang Xiu, Yongliang Shao, Yongzhong Wu, Xiaopeng Hao

{"title":"Enhancing sodium ionic conductivity: An interface bridging strategy for Na3Zr2Si2PO12 solid-state electrolyte","authors":"Xiaolong Xu, Zizheng Ai, Zhiliang Xiu, Yongliang Shao, Yongzhong Wu, Xiaopeng Hao","doi":"10.1016/j.est.2025.116046","DOIUrl":"10.1016/j.est.2025.116046","url":null,"abstract":"<div><div>For the solid-state electrolyte (SSE), a key issue needs to be solved urgently is that the sodium ionic transport among the Na<sub>3</sub>Zr<sub>2</sub>Si<sub>2</sub>PO<sub>12</sub> (NZSP) particles is interrupted by the presence of impurities and pores. Herein, we propose an interface bridging strategy to enhance sodium ion conductivity through preparing NZSP/zeolitic imidazolate frameworks-8 (ZIF-8)/poly(vinylidene fluoride-<em>co</em>-hexafluoropropylene) (PVDF-HFP) SSEs (NZSP/ZIF/PH). Firstly, the Zn-NZSP particles without impurities prepared by Zn-doping, providing Zn connection sites for ZIF and NZSP. Secondly, the effective interface interaction between NZSP and ZIF is achieved through in-situ growth of ZIF on the surface of NZSP particles. Finally, a seamless interface bridging structure is established via the compatibility between ZIF and PVDF-HFP in NZSP/ZIF/PH SSE. Consequently, the optimized NZSP/ZIF/PH-C SSE exhibits an inter-particle ionic conductivity of 3.67 mS cm<sup>−1</sup> (0.048 mS cm<sup>−1</sup> of NZSP) and a total ionic conductivity of 1.34 mS cm<sup>−1</sup> (0.036 mS cm<sup>−1</sup> of NZSP). Moreover, the symmetrical Na/SSE/Na cell using NZSP/ZIF/PH-C demonstrates a prolonged cycle life exceeding 1600 h with the charge-discharge voltages of ±0.15 V at a current density of 1 mA cm<sup>−2</sup>. This research introduces an innovative interface bridging strategy to connect NZSP particles, thereby enhancing the ionic transport performance of SSEs in solid-state batteries.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 116046"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520789","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

Dual-phase (AlMgCoNiCuZn)O high-entropy oxide embedded in graphite nanosheets with superior lithium storage capability

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.115993

Yuxin Li , Yongchang Qiu , Guanmei Yao , Xu Mou , Xianqing Liang , Haifu Huang , Dan Huang , Wenzheng Zhou , Shuaikai Xu , Jin Guo

{"title":"Dual-phase (AlMgCoNiCuZn)O high-entropy oxide embedded in graphite nanosheets with superior lithium storage capability","authors":"Yuxin Li , Yongchang Qiu , Guanmei Yao , Xu Mou , Xianqing Liang , Haifu Huang , Dan Huang , Wenzheng Zhou , Shuaikai Xu , Jin Guo","doi":"10.1016/j.est.2025.115993","DOIUrl":"10.1016/j.est.2025.115993","url":null,"abstract":"<div><div>High-entropy oxides (HEOs) are promising anode materials for Li-ion batteries (LIBs) due to their wide component range and tunable Li-storage property. However, low electrical conductivity and sluggish reaction kinetics restrict their practical applications. In this work, a novel (AlMgCoNiCuZn)O HEO-graphite composite (Al-MgTMO/G) was constructed via facile solid-state reaction and scalable ball milling methods. The synthesized composite has an architecture that includes fine Al-MgTMO nanoparticles embedded in ultrathin graphite nanosheets. It is found that Al-MgTMO contains a major rock-salt phase along with a mirror spinel phase, which induces the generation of extra oxygen vacancies. These factors together enhance its Li-ion transport and electrochemical kinetics. Meanwhile, graphite nanosheets can further increase the electrical conductivity and stabilize the structure of Al-MgTMO. As a result, the Al-MgTMO/G composite delivers a high reversible capacity of 949.4 mAh g<sup>−1</sup> after 160 cycles at 0.2 A g<sup>−1</sup>. Additionally, it also exhibits intriguing rate capability of 481.1 mAh g<sup>−1</sup> at 2.0 A g<sup>−1</sup> and long-term stability of 405.3 mAh g<sup>−1</sup> after 400 cycles at 1.0 A g<sup>−1</sup>. This work presents a simple, efficient and scalable strategy for designing HEO-based anode materials with high lithium storage performance.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 115993"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520449","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

Cu-based Prussian blue cubic sheet with core-shell structure for high-rate sodium-ion batteries

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.116031

Haonan Cui , Jun Wu , Zibin Xu , Junming Xu , Yurong Cai , Wenbin Ni , Xiaochong Zhou

{"title":"Cu-based Prussian blue cubic sheet with core-shell structure for high-rate sodium-ion batteries","authors":"Haonan Cui , Jun Wu , Zibin Xu , Junming Xu , Yurong Cai , Wenbin Ni , Xiaochong Zhou","doi":"10.1016/j.est.2025.116031","DOIUrl":"10.1016/j.est.2025.116031","url":null,"abstract":"<div><div>Suffering from their severe frame distortion, conventional Prussian blue analogues (PBAs) have still remained challenges in poor cyclability and short life-span for cathodes of sodium-ion batteries (SIBs). By employing a two-step co-precipitation coating strategy, a cubic sheet FeCu-HCF@Cu-HCF composite was in-situ synthesized in this paper with a core-shell structure of Na<sub>x</sub>Fe<sub>1-y</sub>Cu<sub>y</sub>[Fe(CN)<sub>6</sub>] (FeCu-HCF) as a core and Na<sub>x</sub>Cu[Fe(CN)<sub>6</sub>] (Cu-HCF) as a shell layer. As an active cathode for SIBs, as-prepared FeCu-HCF@Cu-HCF composite showed an excellent cyclability retaining its initial capacity of 83.08 % after 300 cycles at 0.5C and high-rate capability of up 10C (1C = 140 mA·g<sup>−1</sup>). Results analysis demonstrated that FeCu-HCF@Cu-HCF sample achieved an improved reaction kinetics with a higher Na<sup>+</sup> diffusion coefficient and a lower coordinated water content than FeCu-HCF, indicating its better application prospect for high-performance of SIBs.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 116031"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520724","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

Study on the influence of high-rate charge/discharge cycle numbers and spacing on thermal runaway propagation in lithium-ion batteries

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.116005

Yajun Huang , Yinquan Zhao , Weifeng Xu , Wei Bai , Xiongqi Shen , Junling Wang , Yawei Lu , Zhirong Wang

{"title":"Study on the influence of high-rate charge/discharge cycle numbers and spacing on thermal runaway propagation in lithium-ion batteries","authors":"Yajun Huang , Yinquan Zhao , Weifeng Xu , Wei Bai , Xiongqi Shen , Junling Wang , Yawei Lu , Zhirong Wang","doi":"10.1016/j.est.2025.116005","DOIUrl":"10.1016/j.est.2025.116005","url":null,"abstract":"<div><div>This study examines the effects of high-rate cycling and inter-battery spacing on thermal runaway propagation (TRP) in lithium-ion batteries through thermal abuse tests. Experiments were conducted under a 3C charge/discharge rate with cycle numbers of 30, 50, 70, and 100, and inter-battery spacings of 0 cm, 1 cm, 1.5 cm, and 2 cm. The results reveal that increasing spacing significantly delays the onset of TRP, with no TR occurring at a spacing of 2 cm and a maximum temperature of 72 °C, establishing 2 cm as the critical spacing for TRP. 100 charge/discharge cycles at a 3C rate resulted in a 21.3 % decrease in state of health (SOH), a 317-s advancement in thermal runaway (TR) onset time, and a 17.2 % reduction in peak temperature compared to 30 charge/discharge cycles. Declining SOH led to greater instability, shortening the time to trigger TR and reducing the peak temperature. The mass loss during TR was directly proportional to SOH. Thermal analysis showed that, at a 1 cm spacing, the second battery experienced TR with minimal heat absorption, whereas increasing spacing to 1.5 cm or 2 cm improved heat dissipation and extended TRP time, preventing TR despite increased surface temperatures. Additionally, at a 1 cm spacing, fewer charge/discharge cycles required greater heat absorption for the second battery to reach TR. Changes in electrode morphology after charge/discharge cycling were also examined. This research provides insights into TRP mechanisms in high-rate charge/discharge cycling, offering theoretical guidance for TR suppression and enhancing battery safety and energy storage technology.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 116005"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520347","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 physically cross-linked carboxymethyl cellulose/chitosan hydrogel electrolyte with high ionic conductivity for zinc-ion hybrid supercapacitors

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-01 DOI: 10.1016/j.est.2025.115980

Yujia Yang, SiYang Ni, JingQiao Zhu, Qiang Xiao, Xianliang Song, Xiaojuan Jin

{"title":"A physically cross-linked carboxymethyl cellulose/chitosan hydrogel electrolyte with high ionic conductivity for zinc-ion hybrid supercapacitors","authors":"Yujia Yang, SiYang Ni, JingQiao Zhu, Qiang Xiao, Xianliang Song, Xiaojuan Jin","doi":"10.1016/j.est.2025.115980","DOIUrl":"10.1016/j.est.2025.115980","url":null,"abstract":"<div><div>The growing interest in zinc-ion hybrid supercapacitors (ZHSCs) has spurred research into hydrogel polymer electrolytes with high ionic conductivity and electrochemical stability. Leveraging the advantages of natural polymers, this study presents a carboxymethyl cellulose (CMC)/chitosan (CS) PECH synthesized via the semi-dissolution acidification sol-gel transition (SD-A-SGT) method. The presence of -COO<sup>−</sup> and -NH₃<sup>+</sup> groups within the PECH provides ion transport channels, enabling the formation of a CMC/CS-ZnSO<sub>4</sub> (CCZ) hydrogel electrolyte with high ionic conductivity (110 mS cm<sup>−1</sup>) and ion transference number (0.73) upon soaking in ZnSO<sub>4</sub> solution. This CCZ electrolyte exhibits excellent polarization stability, a wide electrochemical stability window, and low corrosion current in zinc symmetric cells. ZHSCs utilizing the CCZ electrolyte demonstrate impressive cycling stability (retaining 84.8 % capacity after 10,000 cycles at a high current density of 10.0 A g<sup>−1</sup>) and favorable energy density (186.88 Wh kg<sup>−1</sup> at 1.6 kW kg<sup>−1)</sup>. Furthermore, the electrolyte maintains its electrochemical stability in flexible ZHSC devices, showcasing its potential for flexible energy storage. This research contributes to the development of high-performance, durable polyelectrolyte composite hydrogel electrolytes for flexible ZHSC devices.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"115 ","pages":"Article 115980"},"PeriodicalIF":8.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520787","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