Energy technology最新文献_第2页

A Self-Powered Smart Wave Energy Harvester with Ratchet and Pawl for Sea-Crossing Bridges 用于跨海桥梁的棘轮和棘爪自供电智能波浪能量收集器

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-05-01 DOI: 10.1002/ente.202402150

Yingjie Li, Weizhen Liu, Jiaoyi Wu, Zutao Zhang, Xiaoping Wu, Lei Zeng, Daning Hao, Jie Zhao, Xianzheng Zhou

{"title":"A Self-Powered Smart Wave Energy Harvester with Ratchet and Pawl for Sea-Crossing Bridges","authors":"Yingjie Li, Weizhen Liu, Jiaoyi Wu, Zutao Zhang, Xiaoping Wu, Lei Zeng, Daning Hao, Jie Zhao, Xianzheng Zhou","doi":"10.1002/ente.202402150","DOIUrl":"https://doi.org/10.1002/ente.202402150","url":null,"abstract":"Sea-crossing bridges need to harvest energy from the surrounding environment to solve the problem of sensor power supply. Herein, a self-powered smart wave energy harvester with ratchet and pawl for sea-crossing bridges is proposed and investigated. Self-powered system supplies energy to low-power sensors on sea-crossing bridges while simultaneously functioning as a self-sensing platform for monitoring ambient marine conditions. The proposed power take-off consists of a ratchet pawl that converts the rising and sinking motion of the float into a unidirectional continuous rotation of the generator. The generated electrical energy is stored in a capacitor to continuously power the sensor. Dry condition experiments verify the power generation performance and reliability of the system. The mechanical testing and sensing test shows that the system increased average power by 766.9% at 0.2 Hz, 22 mm with the flywheel installed. The system achieves a maximum average power of 3.6 W, a maximum output power of 15.3 W, and a maximum mechanical efficiency of 35%. The voltage data is trained by a deep learning network to achieve a classification accuracy of 99.94%. Finally, its limitations, practical applications, and potential future benefits of the system are studied.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Experimental and Technoeconomic Analysis Study on Point Absorber Wave Energy Converter on Indian Sites 点吸收波能转换器在印度场址的试验与技术经济分析研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-05-01 DOI: 10.1002/ente.202402429

Shivam Gupta, Sumana Ghosh, Mukesh Kr Pathak, Deepak Kumar

{"title":"Experimental and Technoeconomic Analysis Study on Point Absorber Wave Energy Converter on Indian Sites","authors":"Shivam Gupta, Sumana Ghosh, Mukesh Kr Pathak, Deepak Kumar","doi":"10.1002/ente.202402429","DOIUrl":"https://doi.org/10.1002/ente.202402429","url":null,"abstract":"This study optimizes, scales, and evaluates the technoeconomic feasibility of a point absorber wave energy converter for electricity generation along the Indian coast. A linear generator-based power take-off system is optimized based on a scale-down model. Three float shapes—cuboid, hemisphere, and trapezoidal with fin—are tested for displacement, force, power generation, and efficiency. The trapezoidal float with fin demonstrates superior performance, achieving the highest root mean square voltage and primary efficiency. At a wave height of 0.15 m, it generates root mean square voltage of 8.5 V, outperforming the cuboid (6.2 V) and hemisphere (5.7 V) shapes of float. Its primary efficiency reaches 33% at 0.04 m wave height, compared to 20% for other floats. Using Froude similarity, the optimized lab-scale prototype is scaled up. Wave data of two specific sites Kudal and Nagarkoi of the Indian Ocean are used for this purpose. A technoeconomic analysis reveals that Nagarkoi achieves a lower levelized cost of energy of 0.07 $ kWh−1, compared to 0.15 $ kWh−1 for Kudal. These findings demonstrate that point absorber wave energy converter can provide cost-effective ocean energy when deployed at scale, supporting the commercialization of wave energy technology in India.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Multifunctional High-Entropy Perovskite Ceramics with Enhanced Energy Storage and Photoluminescence Properties 具有增强储能和光致发光性能的多功能高熵钙钛矿陶瓷

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-04-26 DOI: 10.1002/ente.202401824

Qiang He, Dongdong Meng, Wenhui Ye, Yu Han, Kepi Chen, Jingkai Nie, Zhixiang Zhu, Shaoxiong Zhou

{"title":"A Multifunctional High-Entropy Perovskite Ceramics with Enhanced Energy Storage and Photoluminescence Properties","authors":"Qiang He, Dongdong Meng, Wenhui Ye, Yu Han, Kepi Chen, Jingkai Nie, Zhixiang Zhu, Shaoxiong Zhou","doi":"10.1002/ente.202401824","DOIUrl":"https://doi.org/10.1002/ente.202401824","url":null,"abstract":"High-entropy perovskite ceramics have become a topic of interest due to their unique properties and compositional versatility. This study pioneers the development of multifunctional high-entropy perovskite ceramics by incorporating the rare-earth element samarium (Sm) into the (Bi0.4Na0.2K0.2Ba0.2)TiO3 matrix. The introduction of Sm3+ increases the configurational entropy and introduces photoluminescence activation centers. Our results show that (Bi0.4−xSmxNa0.2K0.2Ba0.2)TiO3 ceramics with x ≤ 0.12 retain pure perovskite phase and exhibit enhanced dielectric relaxation properties. The presence of Sm3+ ions disrupts the long-range ferroelectric order, resulting in lower maximum polarization and remanent polarization. In particular, the ceramic sample with x = 0.08 exhibits exceptional energy storage and photoluminescence properties. It achieves a recoverable energy storage density of 1.64 J cm−3 and an efficiency (η) of 79.2% under a low electric field of 180 kV cm−1. These properties position the material as a promising candidate for applications in electro-optical devices.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Improvement of Performance of Cu2ZnSn(S,Se)4 Solar Cells by Adding SiNx Buffer Layer and Optimizing its Position and Thickness 添加SiNx缓冲层及优化位置和厚度对Cu2ZnSn(S,Se)4太阳能电池性能的改善

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-04-26 DOI: 10.1002/ente.202500083

Yuting Sun, Guanxin Yan, Bin Yao, Yongqin Hao, Yongfeng Li, Zhanhui Ding, Jiayong Zhang, Chunkai Wang, Ding Ma, Mengge Li

{"title":"Improvement of Performance of Cu2ZnSn(S,Se)4 Solar Cells by Adding SiNx Buffer Layer and Optimizing its Position and Thickness","authors":"Yuting Sun, Guanxin Yan, Bin Yao, Yongqin Hao, Yongfeng Li, Zhanhui Ding, Jiayong Zhang, Chunkai Wang, Ding Ma, Mengge Li","doi":"10.1002/ente.202500083","DOIUrl":"https://doi.org/10.1002/ente.202500083","url":null,"abstract":"Many results have demonstrated that high interfacial recombination is one of the main leading to low power conversion efficiency (PCE) of Cu2ZnSn(S,Se)4 (CZTSSe). Herein, interfacial recombination of CZTSSe solar cell by addition of silicon nitride (SiNx) buffer layer in front interface of CdS/CZTSSe and back interface of CZTSSe/Mo is reduced. It is found that the PCE decreases sharply when the SiNx layer is deposited at the front interface. Quantitative analysis indicates that the decreased PCE is mainly attributed to the decrease in photogeneration density (JL), followed by increase in reverse saturation current density (J0). However, when the SiNx layer is deposited at the back interface, the PCE increases from 9.11 to 9.78% as the thickness of the SiNx increases from 0 to 5 nm. Quantitative analysis indicates that the increased PCE is mainly attributed to the increase in JL, followed by the decrease in J0 and series resistance (Rs). This work provides a reference for the study of using SiNx passivation to improve the efficiency of CZTSSe or other solar cells.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Research on Optimal Capacity Allocation of Hybrid Energy Storage System Consisting of Li-Ion Battery and Redox Flow Battery for Smoothing Wind Power Fluctuations 平滑风电波动的锂离子电池与氧化还原液流电池混合储能系统容量优化分配研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-04-26 DOI: 10.1002/ente.202402223

Ya Wang, Fengbin Li, Xinghao Sun, Hailong Han, Yan Wang, Wenjiong Cao, Ti Dong

{"title":"Research on Optimal Capacity Allocation of Hybrid Energy Storage System Consisting of Li-Ion Battery and Redox Flow Battery for Smoothing Wind Power Fluctuations","authors":"Ya Wang, Fengbin Li, Xinghao Sun, Hailong Han, Yan Wang, Wenjiong Cao, Ti Dong","doi":"10.1002/ente.202402223","DOIUrl":"https://doi.org/10.1002/ente.202402223","url":null,"abstract":"The growth in wind turbine capacity and grid integration is increasingly disrupting grid stability. This article proposes a hybrid energy storage system (HESS) using lithium-ion batteries (LIB) and vanadium redox flow batteries (VRFB) to effectively smooth wind power output through capacity optimization. First, a coordinated operation framework is developed based on the characteristics of both energy storage types. Empirical modal decomposition is used to separate the raw wind power into a direct grid-connected component and a fluctuation component that the HESS needs to manage. A two-layer energy optimization management strategy is then designed to optimize short-term responses to wind power fluctuations and long-term coordination of the storage system's charging state. Next, a capacity allocation model for the HESS is established to minimize comprehensive costs while considering charging/discharging power and charge state constraints. Finally, data from a 200 MW wind power plant are analyzed to verify the model's effectiveness. The results show that the HESS, combining LIB and VRFB, enhances system efficiency and economic performance while meeting wind power fluctuation smoothing needs. This provides valuable theoretical and practical guidance for the storage capacity configuration of new energy systems.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Current-Based Heating for Drying Lithium-Ion-Battery Electrodes: Assessment of Feasibility and Effects on Electrode Properties 电流加热干燥锂离子电池电极：可行性评估及其对电极性能的影响

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-04-26 DOI: 10.1002/ente.202402221

Tobias Krüger, Hakon Gruhn, Malte Mund, Klaus Dilger, Maja W. Kandula

{"title":"Current-Based Heating for Drying Lithium-Ion-Battery Electrodes: Assessment of Feasibility and Effects on Electrode Properties","authors":"Tobias Krüger, Hakon Gruhn, Malte Mund, Klaus Dilger, Maja W. Kandula","doi":"10.1002/ente.202402221","DOIUrl":"https://doi.org/10.1002/ente.202402221","url":null,"abstract":"Although convective drying represents the current state of the art in electrode production, its limitations in production speed and economic drawbacks related to overall energy consumption necessitate the exploration of alternative drying technologies. This study thoroughly investigates the applicability of a new drying method based on electrical conduction. Through an experimental approach, conductive drying experiments are performed on aqueous-processed graphite anodes at various drying intensities. A combination of thermographic and gravimetric measurements is utilized to comprehensively analyze the ensuing drying process and assess the achievable drying rates. Results indicate that electrodes can be effectively dried, achieving drying rates of up to 1.45 g m−2 s−1, which approaches industrial relevance. Additionally, edge heating is observed at the coating interface regions, facilitating an accelerated drying process with up to 23% higher drying rates in the affected areas. Although this effect results in a measurable discrepancy in mechanical strength across the electrode area, conductively dried electrodes still exhibit improved mechanical properties as well as both electrical and electrochemical properties comparable to those of convectively dried electrodes. Based on these findings, the potential of the conductive drying method as a viable alternative for electrode production is successfully demonstrated.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202402221","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication and Properties of a Thermal Conduction-Enhanced SiO2–Ag Double-Shell Nanoencapsulated Lauric Acid Phase Change Material 热导增强SiO2-Ag双壳纳米月桂酸相变材料的制备与性能研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-04-24 DOI: 10.1002/ente.202500148

Tonghe Li, Siyu Hao, Huanmei Yuan, Sitong Liu, Dengti Hu, Hao Bai

{"title":"Fabrication and Properties of a Thermal Conduction-Enhanced SiO2–Ag Double-Shell Nanoencapsulated Lauric Acid Phase Change Material","authors":"Tonghe Li, Siyu Hao, Huanmei Yuan, Sitong Liu, Dengti Hu, Hao Bai","doi":"10.1002/ente.202500148","DOIUrl":"https://doi.org/10.1002/ente.202500148","url":null,"abstract":"To significantly improve the thermal conductivity of nanocapsule shells, lauric acid (LA)/SiO2–Ag composite shell phase change nanocapsules are synthesized via sol–gel and chemical reduction methods. Three types with varying Ag shell thicknesses are obtained, showing particle sizes of 946–982 nm, latent heat of 21.59–59.81 J g−1, and volume encapsulation ratio (<math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mi>R</mi>\u0000 <mi>V</mi>\u0000 </msub>\u0000 </mrow>\u0000 <annotation>$R_{text{V}}$</annotation>\u0000 </semantics></math>) of 63.78–86.96%. After 1000 thermal cycles, the latent heat decay is only 1.87%, indicating good thermal reliability. Specifically, a detailed porosity correction is performed, and the corrected effective thermal conductivity of LA/SiO2–Ag nanocapsules is 22.11–80.04 W (m K)−1, indicating that the thermal conductivity of LA/SiO2–Ag nanocapsules is significantly improved. Furthermore, a 1D unsteady-state thermal conduction device tested the heat transfer performance of stacked nanocapsules. The results demonstrate that LA/SiO2–Ag nanocapsules exhibit a significantly faster heat transfer rate than LA/SiO2 nanocapsules, reducing heat transfer time by 108.1%. The simulation results further reveal that the Ag shell facilitates interfacial heat transfer in stacked nanocapsules, allowing heat to propagate rapidly from the bottom to the top. Additionally, for single nanocapsules, the high thermal conductivity of the Ag shell promotes uniform inward heat transfer, expediting phase transition and enhancing thermal performance.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Optimized Mixed Halide Triple Cation Perovskite Based Indoor Photovoltaic Device Architecture with Ultrahigh Open Circuit Voltage and Efficiency > 42% 基于混合卤化物三阳离子钙钛矿的超高开路电压和效率> 42%室内光伏器件结构优化

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-04-24 DOI: 10.1002/ente.202500067

Vishnuvardhan Reddy Chappidi, Rajendra Kumar Challa, Sai Santosh Kumar Raavi

{"title":"Optimized Mixed Halide Triple Cation Perovskite Based Indoor Photovoltaic Device Architecture with Ultrahigh Open Circuit Voltage and Efficiency > 42%","authors":"Vishnuvardhan Reddy Chappidi, Rajendra Kumar Challa, Sai Santosh Kumar Raavi","doi":"10.1002/ente.202500067","DOIUrl":"https://doi.org/10.1002/ente.202500067","url":null,"abstract":"Indoor photovoltaics have attracted greater interest in applications of Internet of Things (IoT) devices. Herein, using the SCAPS 1D software, the output characteristics of photovoltaic devices utilizing Cs0.08(MA0.17FA0.83)0.92Pb(I0.83Br0.17)3 are comprehensively investigated, denoted as PVK, with a bandgap of 1.76 eV, as an active layer under light-emitting diode (LED) excitation of 3 W m−2. For the optimization, various materials such as C60, PCBM, SnO2, TiO2, and WS2 as electron transport layer (ETL) and Cu2O, PEDOT: PSS, Spiro-OMETAD, NiO, and CuI as hole transport layer (HTL) are used. Parameters including the thickness and doping density of all layers, absorber defect density, the interface defect density of ETL/PVK and HTL/PVK, and the device's series and shunt resistance are optimized. The optimized device of FTO/SnO2/PVK/Cu2O/Au exhibits the highest PCE of 42.62%, with VOC of 1.27 V. Further, the simulations demonstrate that as the incident power (Pin) increases from 0.3 to 10 W m−2, the VOC increases from 1.13 to 1.31 V, highlighting the importance of stable VOC over photocurrent for practical IoT applications. This study contributes to the experimental development of high-efficiency PVK indoor photovoltaics.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 7","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Design of Electromagnetic Heating Molten Salt Thermal Storage Device and the Distribution Strategy of Thermal Storage Metering Sensors 电磁加热熔盐蓄热装置设计及蓄热计量传感器分布策略

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-04-23 DOI: 10.1002/ente.202402204

Feng Zhou, Chenqi Li, Kerui Liu, Jun Qiao, Yongqiang Zhang, Heng Hu, Ting Hao

{"title":"Design of Electromagnetic Heating Molten Salt Thermal Storage Device and the Distribution Strategy of Thermal Storage Metering Sensors","authors":"Feng Zhou, Chenqi Li, Kerui Liu, Jun Qiao, Yongqiang Zhang, Heng Hu, Ting Hao","doi":"10.1002/ente.202402204","DOIUrl":"https://doi.org/10.1002/ente.202402204","url":null,"abstract":"Thermal energy is essential in both daily life and industrial applications. Molten salt phase-change thermal storage technology provides an effective solution for improving thermal energy utilization. However, traditional thermal storage systems face several challenges, including low heat transfer efficiency and difficulties in measuring thermal storage. These limitations hinder the widespread adoption of molten salt thermal storage technology. To address these issues, this article presents the design of an electromagnetic heating molten salt thermal storage device. The study simulates and analyzes the thermal behavior of the device under various heating conditions. Based on the simulation results, this article compares and analyzes the heat distribution patterns of molten salt at different cross sections. This article also investigates the heat density distribution in the thermal storage device. By selecting the optimal temperature sensor location, the study proposes a heat metering scheme for the molten salt thermal storage device, achieving accurate measurement of the device's thermal storage capacity.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Donor–Acceptor–Donor-Functionalized Pillared Graphene Oxide for High-Performance Flexible Supercapacitor Device 高性能柔性超级电容器器件的供体-受体-供体功能化柱状氧化石墨烯

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-04-23 DOI: 10.1002/ente.202402230

Sudhir D. Jagadale, Sidhanath V. Bhosale

{"title":"Donor–Acceptor–Donor-Functionalized Pillared Graphene Oxide for High-Performance Flexible Supercapacitor Device","authors":"Sudhir D. Jagadale, Sidhanath V. Bhosale","doi":"10.1002/ente.202402230","DOIUrl":"https://doi.org/10.1002/ente.202402230","url":null,"abstract":"In this investigation, donor–acceptor–donor (D-A-D) based small organic molecule 2,5-bis((4-aminophenyl) amino) cyclohexa-2,5-diene-1,4-dione (2NH2-Ph-BQ) as the pillar in between graphene oxide (GO) sheets to fabricate the GO-BAPh-BQ-BAPh-GO electrode materials with graphite foil (GF) substrate is utilized. At first, three-electrode supercapacitor (SC), two-electrode symmetric supercapacitor (SSC) device, and flexible symmetric supercapacitor device using GO-BAPh-BQ-BAPh-GO/GF electrode are assembled, which show excellent electrochemical performance with respective specific capacitance (Csp), energy density (ED), power density (PD), and cycling stability. The three-electrode cell galvanostatic charging–discharging (GCD) exhibits good Csp of 338.07 F g−1 at 0.5 A g−1 current density, and cyclic voltammogram exhibits Csp of 244.31 F g−1 at 5 mV s−1. The SSC device GCD exhibits good Csp of 147.67 F g−1 at 0.5 A g−1 current density, ED 36.18 Wh kg−1, and PD 1259.98 W kg−1. Cycling stability shows 99.03% retention after 10 000 GCD cycles and coulombic efficiency 99.21%. The performance of the pillared in SSC suggests the great potential of the electrode material or developing both high energy and power densities in electrical energy storage devices.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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