Journal of Electroanalytical Chemistry最新文献_第7页

Online diagnostic method for fault behavior of lithium batteries with secondary utilization 二次利用锂电池故障行为在线诊断方法

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-09 DOI: 10.1016/j.jelechem.2025.119469

Junfu Li , Zhaowei Zhang , Tongxin Li , Runze Wang , Yaxuan Wang

{"title":"Online diagnostic method for fault behavior of lithium batteries with secondary utilization","authors":"Junfu Li , Zhaowei Zhang , Tongxin Li , Runze Wang , Yaxuan Wang","doi":"10.1016/j.jelechem.2025.119469","DOIUrl":"10.1016/j.jelechem.2025.119469","url":null,"abstract":"<div><div>With the continuous increase in battery deployment, the repurposing scale of retired batteries in energy storage and other secondary utilization scenarios has expanded significantly. However, performance degradation during cycling may elevate risks such as thermal runaway, posing critical safety concerns. This study addresses the safety concerns in retired lithium iron phosphate (LFP) battery echelon utilization by establishing a online failure diagnosis system based on mechanism model parameters. First, a battery model is established and an online collaborative identification method is constructed using the dual adaptive extended kalman filter (AEKF) algorithm. Subsequently, the evolution patterns of the model parameters are quantitatively analyzed, and a fault behavior diagnostic framework is proposed through a fault boundary construction method. Finally, the reliability of the failure boundary-based diagnostic method is validated through destructive analysis techniques encompassing scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results show that the voltage prediction errors of MAE less than 20 mV and RMSE less than 26 mV remain within the acceptable thresholds when voltage prediction is performed using the online identification parameters. The diagnostic accuracy of the failure behavior diagnostic method for the detected anomalies is 94.1%, and the leakage rate for all sample points is 8.4%, indicating that the failure behavior diagnosis method based on failure boundary has strong reliability and accuracy.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119469"},"PeriodicalIF":4.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing sustainable lithium-ion battery anode using activated carbon-derived polypropylene plastic waste/MXene hybrid composite 利用活性炭衍生的聚丙烯塑料垃圾/MXene混合复合材料增强可持续锂离子电池阳极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-09 DOI: 10.1016/j.jelechem.2025.119472

Muhammad Amirul Aizat Mohd Abdah , Fathihah Nabila Mohammad Azlan , Weng Pin Wong , Muhammad Norhaffis Mustafa , Arshid Numan , Rashmi Walvekar , Mohammad Khalid

{"title":"Enhancing sustainable lithium-ion battery anode using activated carbon-derived polypropylene plastic waste/MXene hybrid composite","authors":"Muhammad Amirul Aizat Mohd Abdah , Fathihah Nabila Mohammad Azlan , Weng Pin Wong , Muhammad Norhaffis Mustafa , Arshid Numan , Rashmi Walvekar , Mohammad Khalid","doi":"10.1016/j.jelechem.2025.119472","DOIUrl":"10.1016/j.jelechem.2025.119472","url":null,"abstract":"<div><div>This study uses a facile synthesis approach to develop activated carbon-derived polypropylene plastic waste (APC) integrated MXene (Ti<sub>3</sub>C<sub>2</sub>) composite (APC800_Ti<sub>3</sub>C<sub>2</sub>) anode material for lithium-ion batteries (LIBs). Microwave-assisted pyrolysis and activation of waste polypropylene produced porous APC800 carbon, while in-situ etching under microwave irradiation synthesized Ti<sub>3</sub>C<sub>2</sub> nanosheets. APC800 and Ti<sub>3</sub>C<sub>2</sub> are combined using slurry casting at varying mass ratios to form the hybrid electrode. Characterization revealed a mesoporous structure that alleviated mechanical stress during lithiation/delithiation. Galvanostatic cycling showed that the 8:2 APC800_Ti<sub>3</sub>C<sub>2</sub> composition delivered an initial discharge capacity of 995.2 mAh/g with negligible attenuation over 100 cycles at 0.2 A/g. Moreover, the rate capability test recovered the specific capacity to 866.7 mAh/g upon returning to 0.2 A/g, demonstrating superior performance. This novel APC800_Ti<sub>3</sub>C<sub>2</sub> hybrid composite is a promising anode material for lithium-ion batteries with a high capacity and long cycle life.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119472"},"PeriodicalIF":4.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lithium calcium borate electrode with excellent capacitance retention for high-performance supercapacitor application 硼酸锂钙电极具有优异的电容保持性能，适用于高性能超级电容器

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-09 DOI: 10.1016/j.jelechem.2025.119470

İ. Pekgözlü , S. Korkmaz , E. Ceyran

{"title":"Lithium calcium borate electrode with excellent capacitance retention for high-performance supercapacitor application","authors":"İ. Pekgözlü , S. Korkmaz , E. Ceyran","doi":"10.1016/j.jelechem.2025.119470","DOIUrl":"10.1016/j.jelechem.2025.119470","url":null,"abstract":"<div><div>Lithium Calcium Borate (LiCaBO<sub>3</sub>) is an emerging material with significant potential for energy storage systems, although it has not yet been widely investigated. Owing to the presence of lithium, calcium, and boron, it offers multifunctional properties. Advantages such as high structural stability, good ionic conductivity, long cycle life, low cost, and environmentally friendly synthesis make LiCaBO₃ a promising candidate for next-generation supercapacitors and hybrid energy storage systems. In this study, LiCaBO₃ was investigated for the first time in the literature as a supercapacitor electrode material. The material was successfully synthesized, and its formation was confirmed through XRD, XPS, SEM/EDX, and BET analyses. Cyclic voltammetry (CV) analysis revealed that the electrode exhibited a maximum areal capacitance of 37 mF cm<sup>−2</sup> at a scan rate of 1 mV s<sup>−1</sup>. Furthermore, after 10,000 charge–discharge cycles, the LiCaBO₃ electrode retained 95.4 % of its initial capacitance, demonstrating excellent cycling stability with only a 4.6 % loss. This level of performance highlights the strong potential of LiCaBO₃ for use in high-efficiency energy storage applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119470"},"PeriodicalIF":4.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-functional electrocatalytic activity of MoS2 for hydrogen evolution and nitrate reduction reactions: coupling with mass spectroscopy 二硫化钼在析氢和硝酸还原反应中的双官能团电催化活性：与质谱的耦合

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-08 DOI: 10.1016/j.jelechem.2025.119468

Fabio A. Gómez-Gómez, Eleazar Castañeda-Morales, Arturo Manzo-Robledo

{"title":"Dual-functional electrocatalytic activity of MoS2 for hydrogen evolution and nitrate reduction reactions: coupling with mass spectroscopy","authors":"Fabio A. Gómez-Gómez, Eleazar Castañeda-Morales, Arturo Manzo-Robledo","doi":"10.1016/j.jelechem.2025.119468","DOIUrl":"10.1016/j.jelechem.2025.119468","url":null,"abstract":"<div><div>A promising approach for hydrogen evolution reaction (HER) as energy source and nitrates reduction (NO<sub>3</sub><sub><sup>−</sup></sub>-RR) towards control pollution and/or the generation of various nitrogenous added-value products is presented in this study. The investigation is focused on the electrocatalytic activity at acid conditions (0.5 M H<sub>2</sub>SO<sub>4</sub> and 1.0 M HNO<sub>3</sub> solutions) of MoS<sub>2</sub> nanoflower-like morphology synthesized via hydrothermal route. The electrocatalytic characterization indicates that depending on the acid in turn, the overpotential for HER is altered. In this context, Tafel slopes and capacitance measurements give more insights on the interactions of MoS<sub>2</sub> catalyst in each acid. Whereas the charge-transfer resistance (ohms) was found to be R<sub>HNO3</sub> > R<sub>H2SO4</sub> as observed from galvanostatic-EIS experiments. Herein, DEMS results demonstrated that the reaction products are modulated by the acid nature, where hydrogen was observed as unique product in H<sub>2</sub>SO<sub>4</sub>; conversely, at HNO<sub>3</sub> electrolyte, the reduction of NO<sub>3</sub><sup>−</sup> species was carried out leading to generation of N<sub>2,</sub> N<sub>2</sub>H<sub>4</sub> and NH<sub>3</sub>, among other compounds, delaying HER-kinetic. Specialized techniques such XRD, SEM-EDS, RAMAN and XPS give some clues concerning the surface state of the materials in study.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119468"},"PeriodicalIF":4.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic modulation of lattice stability and high-voltage 4.5 V interface dynamics in quasi-single-crystal LiNi0.9Co0.05Mn0.05O2 cathode via Al/Zr Co-doping and coating Al/Zr共掺杂和涂层对准单晶LiNi0.9Co0.05Mn0.05O2阴极晶格稳定性和高压4.5 V界面动力学的协同调制

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-05 DOI: 10.1016/j.jelechem.2025.119441

Lu Zhou , Haojie Du , Dawei Yu , Xinming Fan , Gaoqiang Mao , Xueyi Guo

{"title":"Synergistic modulation of lattice stability and high-voltage 4.5 V interface dynamics in quasi-single-crystal LiNi0.9Co0.05Mn0.05O2 cathode via Al/Zr Co-doping and coating","authors":"Lu Zhou , Haojie Du , Dawei Yu , Xinming Fan , Gaoqiang Mao , Xueyi Guo","doi":"10.1016/j.jelechem.2025.119441","DOIUrl":"10.1016/j.jelechem.2025.119441","url":null,"abstract":"<div><div>High-capacity nickel-rich layered cathode materials, as pivotal components for next-generation lithium-ion batteries, face severe limitations in practical applications due to their structural instability under high-voltage operation. This study innovatively proposes an Al/Zr co-modification strategy to precisely regulate the composition and structure of quasi-single-crystal LiNi<sub>0.90</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>O<sub>2</sub>. By employing a gradient calcination process, We simultaneously achieved Al/Zr bulk doping and a spontaneously formed Li<sub>2</sub>ZrO<sub>3</sub> coating layer induced by Zr<sup>4+</sup>, constructing a novel cathode system with multi-scale synergistic effects. The Al/Zr doping enhances lattice oxygen stability through electronic structure modulation, significantly improving structural integrity at highly delithiated states, while Zr<sup>4+</sup> modification reinforces mechanical stability via lattice engineering, mitigating cyclic stress accumulation. Notably, the in-situ-formed surface coating not only acts as a protective barrier but also optimizes Li<sup>+</sup> transport kinetics through interface engineering. This “bulk-interface” synergistic modification enables the material to deliver an initial capacity of 215.6 mAh g<sup>−1</sup> at 1C (2.7–4.5 V) with an 88.56 % retention after 100 cycles. This work provides a new design strategy for high-voltage quasi-single-crystal Ni-rich cathodes, offering promising advancements for next-generation high-energy-density batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119441"},"PeriodicalIF":4.1,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial engineering driven Cu2-xS/ZnS composite by one-step synthesis as an ultrastable anode for lithium-ion storage 界面工程驱动一步合成Cu2-xS/ZnS复合材料作为锂离子存储的超稳定阳极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-05 DOI: 10.1016/j.jelechem.2025.119463

Yu Rao , Penghua Liang , Chenxiao Guo , Xize Chen , Minglei Cao , Chuankun Zhang , Rui Tong , Kongjun Zhu

{"title":"Interfacial engineering driven Cu2-xS/ZnS composite by one-step synthesis as an ultrastable anode for lithium-ion storage","authors":"Yu Rao , Penghua Liang , Chenxiao Guo , Xize Chen , Minglei Cao , Chuankun Zhang , Rui Tong , Kongjun Zhu","doi":"10.1016/j.jelechem.2025.119463","DOIUrl":"10.1016/j.jelechem.2025.119463","url":null,"abstract":"<div><div>Metal sulfide is a promising anode material for lithium-ion batteries due to their unique layered structure and high theoretical specific capacity. However, the challenge lies in enhancing electronic conductivity and cycling stability. An effective method to enhance the rate capability and cycle performance of metal sulfide materials is to construct the hybrid structure. In this paper, the interfacial engineering of multiple sulfides is explored to develop ideal lithium-ion storage anode materials. Hence, the one-step mixed hydrothermal method was used to synthesize the Cu<sub>2-x</sub>S/ZnS hybrid structure. The synthesized Cu<sub>2-x</sub>S/ZnS hybrid structure exhibits better lithium storage performance and higher electronic conductivity compared with the single Cu<sub>2-x</sub>S, which has resulted from the existence of the phase interface generating the built-in electric field and boosting Li<sup>+</sup> storage properties at the phase interfaces. In comparison with the single Cu<sub>2-x</sub>S, the results display that the Cu<sub>2-x</sub>S/ZnS hybrid structure shows enhanced rate capability and prominent long-term cycling performance (416.9 mAh g<sup>−1</sup> at 1 A g<sup>−1</sup> after 1300 cycles). This strategy demonstrates that the construction of hybrid structure can improve the electronic conductivity and structure stability for other advanced anode materials.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119463"},"PeriodicalIF":4.1,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

NiSe@NiMo-LDH electrodes for low temperature and flexible electrochemical capacitors NiSe@NiMo-LDH用于低温柔性电化学电容器的电极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-05 DOI: 10.1016/j.jelechem.2025.119465

Meihan Yu , Qi He , Junhong Hao , Abdukader Abdukayum , Xiang Wu

引用次数: 0

Thermally activating IrCoP@CNT: A double-phase synergistic catalyst for ultra-efficient acidic oxygen evolution and sustainable Lead electrodeposition 热活化IrCoP@CNT：一种用于超高效酸性析氧和可持续铅电沉积的双相协同催化剂

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-05 DOI: 10.1016/j.jelechem.2025.119464

Cunpeng Duan , Jiahui Xiao , Yanzhi Sun , Junqing Pan

{"title":"Thermally activating IrCoP@CNT: A double-phase synergistic catalyst for ultra-efficient acidic oxygen evolution and sustainable Lead electrodeposition","authors":"Cunpeng Duan , Jiahui Xiao , Yanzhi Sun , Junqing Pan","doi":"10.1016/j.jelechem.2025.119464","DOIUrl":"10.1016/j.jelechem.2025.119464","url":null,"abstract":"<div><div>The development of high-performance acidic oxygen evolution reaction (OER) catalysts with ultralow overpotential is crucial for green electrolysis, particularly to address the competitive anodic oxidation between water molecules and Pb<sup>2+</sup> during lead recovery. In this work, we proposed IrCoP@CNT through an in-situ growth of ZIF-67 on carbon nanotubes (CNTs), controlled phosphidation, and precise deposition of iridium (Ir) species. The superior architecture integrates highly dispersed, nanoscale metallic Ir and crystalline IrP<sub>2</sub> active sites intimately anchored within a three-dimensional conductive network formed by CNTs intertwined with ZIF-derived N, P-codoped carbon, facilitating exceptional charge/mass transport, and enhances structural robustness. Remarkably, IrCoP@CNT achieves an ultralow OER overpotential of 113 mV (10 mA cm<sup>−2</sup>) in 1 M methanesulfonic acid (MSA) at 90 °C, while completely suppressing parasitic Pb<sup>2+</sup> oxidation to PbO<sub>2</sub>. This exceptional selectivity enables near-quantitative lead deposition (99.87 % current efficiency) with record-low energy consumption (420.68 kWh t<sup>−1</sup>), overcoming the OER/Pb<sup>2+</sup> oxidation competition. IrCoP@CNT establishes a new paradigm, uniquely merging ultra-high intrinsic OER kinetics with the fundamental elimination of competing anodic side reactions, dramatically minimizing energy dissipation and paving the way for highly efficient and sustainable electrochemical metal recycling.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119464"},"PeriodicalIF":4.1,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical oxidation and voltammetric determination of the fungicide metalaxyl using a boron-doped diamond electrode 用掺硼金刚石电极电化学氧化和伏安法测定杀菌剂甲乙基

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-04 DOI: 10.1016/j.jelechem.2025.119462

Oleksandr Matvieiev , Renáta Šelešovská , Lucia Hojová , Michaela Selepová , Jakub Vobořil , Andrea Vojs Staňová

{"title":"Electrochemical oxidation and voltammetric determination of the fungicide metalaxyl using a boron-doped diamond electrode","authors":"Oleksandr Matvieiev , Renáta Šelešovská , Lucia Hojová , Michaela Selepová , Jakub Vobořil , Andrea Vojs Staňová","doi":"10.1016/j.jelechem.2025.119462","DOIUrl":"10.1016/j.jelechem.2025.119462","url":null,"abstract":"<div><div>This study investigates for the first time the electrochemical behavior and voltammetric determination of fungicide metalaxyl using boron-doped diamond electrodes. Cyclic voltammetry revealed an irreversible oxidation peak of metalaxyl at +1900 mV in 0.1 mol L<sup>−1</sup> H<sub>2</sub>SO<sub>4</sub>. The oxidation process was found to be diffusion-controlled and independent of proton participation. Electrochemical conversion mechanism was elucidated by high performance liquid chromatography with high resolution mass spectrometry (HPLC-HRMS), identifying oxidation products. Differential pulse voltammetry (DPV) and square wave voltammetry (SWV) methods were optimized for metalaxyl determination, with DPV showing higher sensitivity and better peak resolution. Surface pre-treatment of BDDE by cycling enhanced signal repeatability and intensity. The developed DPV method exhibited a wide linear dynamic range (0.025–9.0 μmol L<sup>−1</sup>), low detection limit (0.0072 μmol L<sup>−1</sup>), and excellent measurement repeatability (RSD < 2.0 %). The method was successfully applied to analyze model solutions and spiked environmental water samples, demonstrating good recoveries also after pre-concentration using activated carbon or solid-phase extraction. This work presents a sensitive and reliable voltammetric approach for metalaxyl monitoring in environmental waters.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119462"},"PeriodicalIF":4.1,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of a high-performance zinc-air-battery cathode by compressing ketjen black membrane on Ni-foam 在泡沫镍上压缩ketjen黑膜制备高性能锌-空气电池正极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-04 DOI: 10.1016/j.jelechem.2025.119461

Yinan Yang, Fangting Yang, Yuewen Chen, Yuan Liu, Mingming Chen, Chenglin Zhang, Yufang Xie, Huimin Zhang, Dawei Cao

{"title":"Preparation of a high-performance zinc-air-battery cathode by compressing ketjen black membrane on Ni-foam","authors":"Yinan Yang, Fangting Yang, Yuewen Chen, Yuan Liu, Mingming Chen, Chenglin Zhang, Yufang Xie, Huimin Zhang, Dawei Cao","doi":"10.1016/j.jelechem.2025.119461","DOIUrl":"10.1016/j.jelechem.2025.119461","url":null,"abstract":"<div><div>To achieve high-performance zinc-air batteries (ZABs), it is crucial to optimize charge transfer kinetics and gas transport efficiency, decrease the interference of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), and suppress side reactions, rather than solely focus on intrinsic electrocatalytic activity. In this work, we facilely prepared a cathode using ketjen black (KB), polytetrafluoroethylene (PTFE), and Ni foam, which can integrate the catalyst layer, gas diffusion layer, and current collector layer as an all-in-one electrode. This electrode structure accelerates gas transport and charge transfer, separates ORR and OER reactions, and decomposes the products of the side reactions. Benefiting from these advantages, the assembled ZAB achieves high peak power density of 175 mW cm<sup>−2</sup> at the current density of 277 mA cm<sup>−2</sup>. In addition, the battery exhibits long cycling stability, maintaining stable operation over 600 cycles with merely 8 % degradation in round-trip efficiency. Furthermore, the device delivers high specific capacity of 818 mAh g<sup>−1</sup> and high energy density of 1022.5 Wh kg<sup>−1</sup>, achieving 94.3 % of the theoretical value for ZAB systems. This study establishes a rational electrode structure using non-precious and frequently-used materials to assemble high-performance ZAB.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119461"},"PeriodicalIF":4.1,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0