Energy technology最新文献

Metal–Organic Frameworks: Synthesis Methods and Multifunctional Applications 金属有机骨架：合成方法及其多功能应用

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-27 DOI: 10.1002/ente.202402354

Jaykishon Swain, Anulipsa Priyadarshini, Swati Panda, Sugato Hajra, Niharika Das, Venkateswaran Vivekananthan, Krystian Mistewicz, Raghabendra Samantray, Hoe Joon Kim, Rojalin Sahu

{"title":"Metal–Organic Frameworks: Synthesis Methods and Multifunctional Applications","authors":"Jaykishon Swain, Anulipsa Priyadarshini, Swati Panda, Sugato Hajra, Niharika Das, Venkateswaran Vivekananthan, Krystian Mistewicz, Raghabendra Samantray, Hoe Joon Kim, Rojalin Sahu","doi":"10.1002/ente.202402354","DOIUrl":"https://doi.org/10.1002/ente.202402354","url":null,"abstract":"Metal–organic frameworks (MOFs) have emerged as a transformative class of materials in materials science and chemistry due to their exceptional porosity and structural tunability. Composed of metal ions or clusters intricately coordinated with organic ligands, MOFs form highly ordered 3D networks with well-defined pores and channels. These unique characteristics enable precise customization of pore size, shape, and functionality through the selection of appropriate metal ions and ligands, unlocking diverse applications across multiple fields. This review provides a comprehensive exploration of MOFs, focusing on their synthesis, structural properties, and versatility. Key areas of discussion include MOFs’ potential for catalytic activity, gas storage, sensing, and drug delivery. Of particular importance is their transformative role in environmental remediation, energy storage, and biomedical applications, demonstrating their adaptability to modern challenges. However, significant barriers such as scalability, long-term stability, and economic viability must be addressed to enable widespread adoption. By detailing state-of-the-art advancements, this review highlights MOFs’ unparalleled ability to achieve precision and efficiency in targeted applications, offering valuable insights for emerging researchers. The findings underscore MOFs’ pivotal role in addressing contemporary scientific and industrial challenges, paving the way for innovative solutions in energy, environment, and health.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939273","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

Designing an Exfoliated Hexagonal Boron Nitride Nanosheets Embellished on Spherical ZnS as an Efficient Electrode for Hybrid Supercapacitor Applications 球形ZnS修饰的脱片状六方氮化硼纳米片作为混合超级电容器高效电极的设计

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-27 DOI: 10.1002/ente.202401993

Dhamodharan Krishnamoorthy, Abhishek Kumar Singh

{"title":"Designing an Exfoliated Hexagonal Boron Nitride Nanosheets Embellished on Spherical ZnS as an Efficient Electrode for Hybrid Supercapacitor Applications","authors":"Dhamodharan Krishnamoorthy, Abhishek Kumar Singh","doi":"10.1002/ente.202401993","DOIUrl":"https://doi.org/10.1002/ente.202401993","url":null,"abstract":"Supercapacitors have evolved into a viable solution for confronting issues of energy demand for modern technological world, but its most significant challenge is the construction of novel electrode devices with long-term energy accumulation. In this current work, exfoliated h-BN-ZnS nanocomposites have been efficiently synthesized through an ultrasonication technique. The characterizations of Raman, X-ray diffraction, and X-ray photoelectron spectroscopy studies ensure the successful preparation of exfoliated h-BN-ZnS nanocomposites. Further, morphology is visualized by field emission scanning electron microscopy and high-resolution transmission electron microscopy, displaying exfoliated h-BN nanosheets embellished over a surface of spherical-shaped ZnS particles. The electrochemical studies of cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge and discharge have been tested in which the exfoliated h-BN-ZnS NCs working electrode reveals maximum specific capacity of 919.09 C g−1 at 10 mV s−1. A hybrid supercapacitor device is constructed by assembling an exfoliated h-BN-ZnS and activated carbon as positive and negative electrode, providing an excellent specific capacity of 273.54 C g−1 at 1 A g−1, and achieving a good energy density of 64.20 Wh kg−1 at the corresponding power density of 844.92 W kg−1, and showing 94.5% of superior capacity retention at 10 A g−1 of current density over 5000 cycles respectively.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939577","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

In Situ Synthesis of Bifunctional NiMn Hybrid Oxides for High-Performance Flexible Supercapacitors and Oxygen Evolution Reaction 高性能柔性超级电容器用双功能NiMn杂化氧化物的原位合成及析氧反应

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-26 DOI: 10.1002/ente.202402270

Arushee Rajeev, Arpit Thomas, Sai Sabareesh K.S., Harpreet Singh Arora

{"title":"In Situ Synthesis of Bifunctional NiMn Hybrid Oxides for High-Performance Flexible Supercapacitors and Oxygen Evolution Reaction","authors":"Arushee Rajeev, Arpit Thomas, Sai Sabareesh K.S., Harpreet Singh Arora","doi":"10.1002/ente.202402270","DOIUrl":"https://doi.org/10.1002/ente.202402270","url":null,"abstract":"Ni-based binary alloy compositions are considered promising materials for energy storage and catalysis applications. Herein, a highly simplistic and efficient technique is reported for synthesizing NiMn hybrid oxyhydroxides as a bifunctional electrode for flexible supercapacitors and an efficient oxygen evolution reaction (OER) catalyst. The synthesis approach involves Ni and Mn coelectrodeposition under a controlled oxygenated environment over a flexible stainless-steel substrate. The developed electrodes exhibit an excellent specific capacitance of 633.54 F g−1 at a current density of 1 A g−1, matching one of the best-reported values in the literature. A symmetric device demonstrates a remarkable energy density of 45 Wh kg−1 at a power density of 181.22 W kg−1. The device shows an excellent cyclic stability of 89.5% after 10 000 cycles. In addition, the NiMn oxyhydroxide electrode showed a remarkable performance in OER with overpotential values of only 282 and 312 mV at 500 and 1000 mA cm−2 current density, surpassing many well-reported studies in the literature. The current study provides a facile and efficient strategy for synthesizing bifunctional electrodes for high-performance energy storage devices and catalysts for OERs.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939611","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

Sustainable Binder System: Cross-Linked Tamarind Gum-Polyacrylic Acid for Silicon-Graphite Anodes in Future Lithium-Ion Batteries 可持续粘合剂系统：用于未来锂离子电池硅石墨阳极的交联罗望子胶-聚丙烯酸

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-26 DOI: 10.1002/ente.202401837

Aiswarya Samridh, Sumol V. Gopinadh, Bibin John, Sujatha Sarojiniamma, Mercy Thelakkattil Devassia, Mary Gladis Joseph

{"title":"Sustainable Binder System: Cross-Linked Tamarind Gum-Polyacrylic Acid for Silicon-Graphite Anodes in Future Lithium-Ion Batteries","authors":"Aiswarya Samridh, Sumol V. Gopinadh, Bibin John, Sujatha Sarojiniamma, Mercy Thelakkattil Devassia, Mary Gladis Joseph","doi":"10.1002/ente.202401837","DOIUrl":"https://doi.org/10.1002/ente.202401837","url":null,"abstract":"Silicon (Si), with high theoretical specific capacity, the most promising anode material to replace graphite in lithium-ion battery (LIB) systems, is studied. The large volume changes during cycling cause cracking, fragmentation of Si, and electrical isolation of the Si active material from the current collector. The combined use of Si and graphite (Si-Gr) provides the best option to achieve high energy densities in commercial LIB systems. The different physical and chemical surface properties of silicon and graphite necessitate designing a binder capable of restraining volume changes. The present study focuses on the effectiveness of crosslinking naturally abundant and water-soluble tamarind gum (TG) with polyacrylic acid (PAA) as binder. Crosslinking of TG and PAA, confirmed by FTIR, has aided an optimum balance between the binding strength, swelling, and better electrode integrity during the cycling than PAA-based anodes. It exhibits an initial specific capacity of 872 mAh/g and coulombic efficiency of 70%. The capacity retention is ≈60% at the end of 900 cycles. The crosslinked TG-PAA binder facilitates Li+ transportation there by maintaining rate capability in the anode. The results provide a promising avenue for pursuing environment-friendly processing of high-capacity LIBs with an extended cycle life using crosslinked biopolymer as binder.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939656","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

Waste-Derived Activated Carbon for Supercapacitors: Current Trends and Future Prospects 超级电容器用废渣活性炭：当前趋势和未来展望

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-12 DOI: 10.1002/ente.202401977

Shailendra Rajput, Varee Tyagi, Sonika, Ratikanta Nayak, Sushil Kumar Verma

{"title":"Waste-Derived Activated Carbon for Supercapacitors: Current Trends and Future Prospects","authors":"Shailendra Rajput, Varee Tyagi,  Sonika, Ratikanta Nayak, Sushil Kumar Verma","doi":"10.1002/ente.202401977","DOIUrl":"https://doi.org/10.1002/ente.202401977","url":null,"abstract":"The primary challenge for supercapacitor technology lies in achieving battery-level performance while reducing costs. Enhancing energy density involves strategic adjustments such as increasing capacitance, reliance on electrode–electrolyte interactions, or boosting cell voltage, dependent on electrolyte stability. Thus, optimizing energy density requires careful electrode material design and electrolyte selection. Because of their abundant availability, exceptional performance, and simple processing methods, various naturally occurring bio-wastes and industrial wastes have been explored for the production of activated carbon for supercapacitors. Additionally, agricultural by-products such as sugarcane bagasse, rice husk, tea waste, coconut shell, peanut shell, lotus stem, and hemp fiber show promise as raw materials for graphene synthesis. Life cycle assessments beyond greenhouse gas emissions and energy efficiency, along with calibrated evaluation techniques and techno-economic analyses, are essential for meaningful sustainability comparisons. The rapid expansion of the bioenergy sector underscores the need for responsible management and sustainability evaluations. This article emphasizes the potential of waste-derived activated carbon as a sustainable and efficient electrode material for supercapacitors.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938812","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

Galfenol-Based Magnetostrictive Energy Harvester for Structural Health Monitoring of Bridges Under Vehicular Loads 基于galfenol的车辆荷载下桥梁结构健康监测磁致伸缩能量采集器

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-11 DOI: 10.1002/ente.202402039

Shamik Dasadhikari, Debabrata Roy, Sotoshi Yamada

{"title":"Galfenol-Based Magnetostrictive Energy Harvester for Structural Health Monitoring of Bridges Under Vehicular Loads","authors":"Shamik Dasadhikari, Debabrata Roy, Sotoshi Yamada","doi":"10.1002/ente.202402039","DOIUrl":"https://doi.org/10.1002/ente.202402039","url":null,"abstract":"The objective of this work is to create a magnetostrictive energy harvester (MEH) using Galfenol to assess the structural health of bridges under automotive loads. The MEH is subjected to controlled vibrations—square, triangular, and sinusoidal waves—using a modified cantilever configuration. It generates a voltage difference across the pickup coil terminals using a Galfenol transducer as the magnetostrictive material, which is then converted into steady DC voltage via a rectification cum warning circuit. The effectiveness of the energy harvester has been confirmed through an experimental setup and expanded to monitor the state of a prototype bridge. The MEH produces varying voltages in response to vibrations in its surroundings, allowing for the differentiation between the healthy condition and the declining condition of bridges. Additionally, an adaptive neuro-fuzzy inference system enables the creation of predictive models based on the existing experimental data. This provides vital insights into the viability of real-time monitoring and early detection of structural anomalies in bridge structures. This study demonstrates the effectiveness of utilizing Galfenol-based magnetostrictive energy harvesting to enhance the safety and efficiency of infrastructure maintenance. This technology additionally enhances the durability and long-term viability of transportation networks.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939138","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

Impedance Spectroscopic and Electrical Equivalent Circuit Analysis of Indium Tin Oxide/n-CdS/p-Si Heterojunction Solar Cell Using SCAPS-1d and Impedance Spectroscopic Modules 利用SCAPS-1d和阻抗光谱模块分析氧化铟锡/n-CdS/p-Si异质结太阳能电池的阻抗光谱和等效电路

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-11 DOI: 10.1002/ente.202402031

Prakash Kumar Jha, Ritesh Kumar Chourasia, Ankita Srivastava, Atish Kumar Sharma, Keyur Sangani, Nitesh K. Chourasia

{"title":"Impedance Spectroscopic and Electrical Equivalent Circuit Analysis of Indium Tin Oxide/n-CdS/p-Si Heterojunction Solar Cell Using SCAPS-1d and Impedance Spectroscopic Modules","authors":"Prakash Kumar Jha, Ritesh Kumar Chourasia, Ankita Srivastava, Atish Kumar Sharma, Keyur Sangani, Nitesh K. Chourasia","doi":"10.1002/ente.202402031","DOIUrl":"https://doi.org/10.1002/ente.202402031","url":null,"abstract":"The impedance spectroscopic (IS) and electrical equivalent circuit analysis of the popular combination indium tin oxide/n-CdS/p-Si heterojunction solar cell is being carried out for the very first time in this analytical study using solar cell capacitance simulator (SCAPS)-1d and the IS module. In this analysis, it is aimed to uncover the device's inherent characteristics for the purpose of future advancements and improvements. Various characteristics and features, as well as the basis for future device improvements, are uncovered through rigorous analysis of the following variables: forward/reverse bias voltage, frequency, illumination intensities (dark and light mode), wavelength-dependent capacitance–voltage, conductance-voltage, capacitance–frequency, and capacitance–temperature. Additionally, spectral response (SR) charts that rely on wavelength are created in addition to Nyquist and Bode plots. The acquired impedance data is much enhanced by these displays. Through IS analysis, a potent method for investigating the dynamics of electrical and ionic charges inside cells is revealed. An improved comprehension of the internal voltage and doping profile in the layers is achieved through additional Mott–Schottky analysis. Bode graphs that rely on frequency provide a better way to comprehend the device's dielectric characteristics. The SR curve can be better understood with the help of these graphs.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939137","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

Impact of Ammonium Triflate on Iota Carrageenan Solid Biopolymer Electrolytes for Electrochemical Devices 三酸铵对电化学器件用Iota卡拉胶固体生物聚合物电解质的影响

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-11 DOI: 10.1002/ente.202401586

Moniha Vijayan, Venkatesh Kaliyaperumal, Premalatha Manavalan, Monisha Sampath, Selvalakshmi Selvasankar, Premkumar Rajendran, Alagar Marimuthu, Sundaresan Balakrishnan

{"title":"Impact of Ammonium Triflate on Iota Carrageenan Solid Biopolymer Electrolytes for Electrochemical Devices","authors":"Moniha Vijayan, Venkatesh Kaliyaperumal, Premalatha Manavalan, Monisha Sampath, Selvalakshmi Selvasankar, Premkumar Rajendran, Alagar Marimuthu, Sundaresan Balakrishnan","doi":"10.1002/ente.202401586","DOIUrl":"https://doi.org/10.1002/ente.202401586","url":null,"abstract":"A free-standing, flexible polysaccharide-based natural solid polymer electrolyte composed of i-Carrageenan doped with various concentrations of ammonium triflate is created via the solution casting approach. An investigation was conducted into the effects of ionic dopant on the structural, vibrational, thermal, dielectric, transport, and electrochemical properties of created solid polymer electrolyte. Structural analysis (X-ray difraction and Fourier transform infrared spectroscopy) proves the non-crystalline nature and the interaction between dopant salt and biopolymer. The maximum conductivity of 1.27 × 10−3 Scm−1 is achieved for the sample containing 1 g i-Carrageenan and 0.3 wt% of ammonium triflate. Dielectric studies reveal that highest conducting membrane shows maximum ε′ and ε″ values. Thermal studies indicate that low glass transition temperature of 28 °C for the highest conducting membrane. Primary proton battery and single polymer electrolyte membrane fuel cell with the highest conducting membrane were fabricated, and their properties are examined. Open-circuit voltages of proton battery and fuel cell are observed to be 1.03 V and 631 mV, respectively.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939115","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

Structural, Morphological, and Electrochemical Characterization of Polypyrrole-Enhanced Reduced Graphene Oxide/NiCoFe2O4 Ternary Composite for High-Performance Supercapacitors 高性能超级电容器用聚吡咯增强还原氧化石墨烯/NiCoFe2O4三元复合材料的结构、形态和电化学表征

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-09 DOI: 10.1002/ente.202402142

Ansari Novman Nabeel, Alok Jain, Kailash Chandra Juglan, Sunita Bhagwa, Sajid Naeem

{"title":"Structural, Morphological, and Electrochemical Characterization of Polypyrrole-Enhanced Reduced Graphene Oxide/NiCoFe2O4 Ternary Composite for High-Performance Supercapacitors","authors":"Ansari Novman Nabeel, Alok Jain, Kailash Chandra Juglan, Sunita Bhagwa, Sajid Naeem","doi":"10.1002/ente.202402142","DOIUrl":"https://doi.org/10.1002/ente.202402142","url":null,"abstract":"Supercapacitors’ exceptional energy density, quick charge and discharge rates, and long cycle life make them extremely promising energy storage technologies. The investigation of electrochemical performance is improved by mixing conductive polymers with reduced graphene oxide (rGO) and nickel cobalt ferrite (NiCoFe2O4). It produces a binary rGO/NiCoFe2O4 composite synthesized by sol–gel autocombustion, which has a specific capacitance of 216.5 F g−1 at 10 mV s−1. A ternary PPy/rGO/NiCoFe2O4 composite is synthesized by adding polypyrrole (PPy), and at the same scan rate, it achieves a specific capacitance of 664.98 F g−1. Nickel foam is used as a substrate material for the electrode, and 3 M KOH is used as an electrolyte for electrochemical analysis. A high energy density of 90 W kg−1 and a power density of 1167.14 W kg−1 are also observed by electrochemical investigation and it can be used for supercapacitor applications.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938808","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

Synthesis of N-Ethyl Carboxylic Acid Functionalized Polyethylenimine as Self-Crosslinking Aqueous Binder for LiFePO4 Cathode of Lithium-Ion Batteries n -乙基羧酸功能化聚乙烯亚胺作为锂离子电池LiFePO4正极自交联水性粘合剂的合成

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-09 DOI: 10.1002/ente.202402066

Dan Shao, Jinxin Huang, Aihua Wu, Yingjun Fang, Xiangfeng Li, Liangyong Hu, Cheng Chen, Lingzhi Zhang

{"title":"Synthesis of N-Ethyl Carboxylic Acid Functionalized Polyethylenimine as Self-Crosslinking Aqueous Binder for LiFePO4 Cathode of Lithium-Ion Batteries","authors":"Dan Shao, Jinxin Huang, Aihua Wu, Yingjun Fang, Xiangfeng Li, Liangyong Hu, Cheng Chen, Lingzhi Zhang","doi":"10.1002/ente.202402066","DOIUrl":"https://doi.org/10.1002/ente.202402066","url":null,"abstract":"N-Ethyl carboxylic acid functionalized polyethyleneimine (N-CEPEI) has been explored as a novel water-solution binder for LiFePO4 (LFP) cathodes, which is synthesized via Michael addition reaction of acrylic acid with the primary and secondary amines from PEI, followed by subsequent in situ condensation. The N-CEPEI binder facilitates the formation of a 3D polymer networks, which exhibits a higher diffusion efficacy of lithium ions and better mechanical strength compared to the commercial poly(vinylidene difluoride) (PVDF) binder, and thus maintains the structural integrity of LFP electrode. The electrochemical performance of the LFP electrode utilizing N-CEPEI binder is evaluated through cyclic voltammetry, electrochemical impedance spectroscopy, and long-cycle-life testing, and the results are compared with those of electrodes using PVDF and PEI binder. The optimal LFP electrode with N-CEPEI binder exhibits superior cycling stability and rate capability, delivering a capacity of 139.60 mAh g−1 with a capacity retention of 94.8% after 400 cycles at 1 C, as compared with 86.6% for PVDF-LFP electrode. Even at a high rate of 5 C, the N-CEPEI-LFP electrode maintains a capacity of 80 mAh g−1 after 500 cycles. This work highlights the potential of N-CEPEI as an effective water-solution binder for LFP-based lithium-ion batteries.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938777","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