Electrochimica Acta最新文献

Biochar derived from soybean residue as an efficient cathode applied in heterogeneous electro-Fenton

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-27 DOI: 10.1016/j.electacta.2025.146335

Shaofei Weng, Ting Wu, Rui Yang, Yilin Zhao, Jing Li, Zhihua Li, Weihuang Zhu

{"title":"Biochar derived from soybean residue as an efficient cathode applied in heterogeneous electro-Fenton","authors":"Shaofei Weng, Ting Wu, Rui Yang, Yilin Zhao, Jing Li, Zhihua Li, Weihuang Zhu","doi":"10.1016/j.electacta.2025.146335","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146335","url":null,"abstract":"This study fabricated an effective cathode (Fe/Zn/BSR@CF), using Fe/Zn co-doped biochar from waste soybean residue (WSR) as the cathodic reactive component. In the electro-Fenton system equipped with the fabricated cathode, the tetracycline (TC) removal efficiency reached 93.86% within 150 min, and total organic carbon (TOC) mineralization efficiency obtained 70.73% within 6 h. The excellent cathodic performance was due to the synergistic strategies, including Fe, N, and P co-doping and specific surface area enhancement via Zn modification of biochar which inherently contained endogenous N and P. The Fe/Zn-doped biochar, characterized by a high specific surface area, facilitated the formation of pyridinic-N and iron phosphide(FexP), thereby endowing the cathode with enhanced H2O2 generation and activation capabilities. Electron paramagnetic resonance spectrometer (EPR) test and quenching experiment results showed hydroxyl radicals (OH•) and superoxide radicals (O2•⁻) were identified as the primary oxygen-containing reactive species during the electro-Fenton process. Results also indicated that O2 was first reduced cathodically to O2•⁻ which subsequently combined with a proton to produce H2O2. Then, the generated H2O2 was activated by the cathodic reactive component (FexP). Furthermore, ecotoxicity evaluation of TC degradation intermediates showed an overall trend toward reduced toxicity. This study presents a biochar-based cathode for the in-situ generation and activation of H2O2, offering an approach to improve electro-Fenton efficiency for organic pollutant removal.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"33 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mixed metal-organic framework-derived NiO/V2O3/C heterojunction nanostructures for high-performance hybrid supercapacitors

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-27 DOI: 10.1016/j.electacta.2025.146334

Jiaying Zhang, Tingyang Xie, Minying Zhao, Yiqing Liu, Nguyen Duc Hoa, Alice A. Kasera, Ronghua Zeng, Guozheng Ma, Yuhong Luo, Yongbo Wu, Xiaoming Lin

{"title":"Mixed metal-organic framework-derived NiO/V2O3/C heterojunction nanostructures for high-performance hybrid supercapacitors","authors":"Jiaying Zhang, Tingyang Xie, Minying Zhao, Yiqing Liu, Nguyen Duc Hoa, Alice A. Kasera, Ronghua Zeng, Guozheng Ma, Yuhong Luo, Yongbo Wu, Xiaoming Lin","doi":"10.1016/j.electacta.2025.146334","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146334","url":null,"abstract":"Transition metal oxides with low cost and good redox properties are excellent candidates for supercapacitor electrode materials. Herein, we present the synthesis of MOF-derived dual transition metal oxide heterojunction nanostructures (NiO/V2O3/C) via hydrothermal and thermal processes. The influence of different ligands and thermal conditions on the electrochemical performance of the resulting materials was systematically examined. The NiO/V2O3/C (NVI-500) electrode material, comprising isonicotinic acid as a ligand, exhibits distinctive heterojunction characteristics at the nanoparticle interfaces, a substantial specific surface area, and synergistic effects that collectively contribute to an exceptional specific capacitance of up to 855 F g-1 at 1 A g-1. Encouragingly, the capacity conservation rate of NVI-500 is 68.1% after 3000 cycles (10 A g-1). Furthermore, the constructed asymmetric supercapacitors demonstrated excellent energy density (26.6 Wh kg-1) and power density (400 W kg-1) with an initial capacitance retention of 83.8% after 9000 cycles. This finding serves to demonstrate that the construction of non-homogeneous transition metal oxides using MOFs as precursors is indeed a feasible strategy.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"31 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancement of Oxygen Evolution Performance of water splitting at High Current Density by Novel Electrodeposited NiFe-LDH Coatings

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-27 DOI: 10.1016/j.electacta.2025.146332

Simón G. Quiroz, Santiago Cartagena, Jorge A. Calderón

{"title":"Enhancement of Oxygen Evolution Performance of water splitting at High Current Density by Novel Electrodeposited NiFe-LDH Coatings","authors":"Simón G. Quiroz, Santiago Cartagena, Jorge A. Calderón","doi":"10.1016/j.electacta.2025.146332","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146332","url":null,"abstract":"Efficient water splitting is a key goal in renewable hydrogen production. However, it is a high-demand energy process. Hence, developing highly efficient and inexpensive electrocatalysts is essential to overcoming this challenge. The cell voltage of the electrochemical water splitting is between 1.8 and 2 V, much higher than the theoretical minimum value of 1.23V, being the oxygen evolution reaction (OER), the most kinetics limiting process, having overpotentials between 210-330 mV at a current density of 30mA cm-2. This work develops low-cost and scalable electrodes for OER by electrodeposition of NiFe layered double hydroxide (LDH) coatings, with different Ni:Fe ratios in the electrodeposition bath. Coating obtained with Ni:Fe ratio of 15:1 exhibits the best catalytic activity for OER and shows the lowest Tafel slope of 38.5 mVdec-1 and the lowest overpotentials of only 206 and 244 in 1 M NaOH at 30 and 100 mAcm-2, respectively, which are the most favorable kinetics parameters respect to those found in literature reports. Furthermore, this developed coating material shows excellent electrocatalytic stability for OER after 80 h of operation at a high current density of 400 mAcm-2 in an alkaline medium, which is a typical condition for practical operation of electrolyzers. The developed catalytic coating by electrodeposition technique shows high performance and stability, economical and straightforward reproducibility. It also supports conformational coatings on complex three-dimensional and high-surface-area substrates, like nickel foam, making it a highly scalable process.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"8 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of V2O5 buffer layer to optimize interfacial stability of NCA cathode materials and cycle stability of lithium-ion batteries

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-27 DOI: 10.1016/j.electacta.2025.146297

Xiaofan Ping, Xueting Pei, Dong Zou, Ce Wang, Xuekong Li, Chuanzhao Cao, Haodong Lei, Chaoran Yang, Qian Cheng, Wei Liu, Xi Cao, Mingyi Liu, Yuan Wang

{"title":"Construction of V2O5 buffer layer to optimize interfacial stability of NCA cathode materials and cycle stability of lithium-ion batteries","authors":"Xiaofan Ping, Xueting Pei, Dong Zou, Ce Wang, Xuekong Li, Chuanzhao Cao, Haodong Lei, Chaoran Yang, Qian Cheng, Wei Liu, Xi Cao, Mingyi Liu, Yuan Wang","doi":"10.1016/j.electacta.2025.146297","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146297","url":null,"abstract":"The nickel-rich layered cathode material LiNi0.80Co0.15Al0.05O2 (NCA) is widely used in lithium-ion batteries because of its reversible capacity and high energy density. However, the interfacial reactions and structural phase transitions arising from its high voltage can limit the cycle life and need to be addressed. In this work, a series of V2O5 coated NCA materials is prepared, the introduction of the V2O5 coating layer does not impact the structure of NCA or the electrochemical reactions. Owing to its excellent stability, V2O5 provides a stable shielding layer that prevents the electrolyte from attacking the cathode material. Thus, the generation of Ni2+ is inhibited, reducing cation mixing during the cycling, slowing down the phase change behavior, and thus improving the operating voltage and cycling stability of NCA cathode material. The V2O5@NCA cathode material with NCA to V2O5 precursor molar ratio of 1:0.002 during preparation (SV2) showed the best cycling performance among these materials. At 25 °C and 1 C, the cycle retention rate of the SV2 sample, after 200 cycles (88.39%), is about 22% higher than that of the NCA sample. This work provides an effective strategy to improve the cycling stability of Ni-rich cathode materials at high voltages.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"17 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Proton Conducting Electrolyte Ba3Ca1.18Nb1.72Y0.1O9-δ for Hydrogen Separation and Fuel cell: Study on Phase Composition, Microstructure, and Electrical Properties

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-26 DOI: 10.1016/j.electacta.2025.146331

Xinyu Cai, Ying Li, Lixin Yang

{"title":"Proton Conducting Electrolyte Ba3Ca1.18Nb1.72Y0.1O9-δ for Hydrogen Separation and Fuel cell: Study on Phase Composition, Microstructure, and Electrical Properties","authors":"Xinyu Cai, Ying Li, Lixin Yang","doi":"10.1016/j.electacta.2025.146331","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146331","url":null,"abstract":"The complex perovskite type proton-conducting materials Ba3Ca1.18Nb1.82O9-δ (BCN18) and Ba3Ca1.18Nb1.72Y0.1O9-δ (BCNY) were fabricated via a solid-state synthesis route. Structural characterization of both compounds was performed through X-ray diffraction analysis (XRD). The microstructure of BCN18 and BCNY were carried out by scanning electron microscopy (SEM). The electrochemical properties were evaluated via alternating current impedance spectroscopy (EIS). The XRD patterns confirmed the successful synthesis of BCN18 and BCNY. Microstructural analysis through SEM revealed compact morphology for both materials. Grain boundary characteristics were examined using distribution of relaxation time (DRT) method, demonstrating that BCNY possesses significantly reduced grain boundary resistance compared to BCN18. The conductivities of BCN18 and BCNY were 2.6×10−3 S cm−1 and 4.64×10−3 S cm−1 at 800°C. BCNY demonstrated a marginally elevated proton transference number relative to BCN18 under identical evaluation conditions. In the hydrogen separation measurement, the hydrogen permeation flux of BCNY was higher than that of BCN18. This study provides important references for developing high-performance proton-conducting electrolytes in hydrogen separation and fuel cell applications.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"50 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile Design of Label-Free Electrochemical Immunosensor Using AuNPs@ZIF-8@f-MWCNTs for CA-125 Detection in Ovarian Cancer 利用 AuNPs@ZIF-8@f-MWCNTs 简易设计用于卵巢癌 CA-125 检测的无标记电化学免疫传感器

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-26 DOI: 10.1016/j.electacta.2025.146291

Nattharika Runprapan, Fu-Ming Wang, Chiou-Chung Yuan, Nattinee Krathumkhet, Zong-Yu Yang

{"title":"Facile Design of Label-Free Electrochemical Immunosensor Using AuNPs@ZIF-8@f-MWCNTs for CA-125 Detection in Ovarian Cancer","authors":"Nattharika Runprapan, Fu-Ming Wang, Chiou-Chung Yuan, Nattinee Krathumkhet, Zong-Yu Yang","doi":"10.1016/j.electacta.2025.146291","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146291","url":null,"abstract":"The early diagnosis of ovarian cancer (OC) is a critical factor in the effective treatment and improved patient outcomes. This study presents a facile design label-free electrochemical immunosensor, a biomarker associated with OC, for high-sensitivity detection of CA-125. Our approach, which involves an immobilization strategy utilizing nanocomposites of gold nanoparticles/zeolitic imidazolate framework-8/carboxylic acid-functionalized multi-walled carbon nanotubes (AuNPs@ZIF-8@f-MWCNTs), has significant potential for the early diagnosis of OC. The synergistic effect of AuNPs, ZIF-8, and f-MWCNTs within the nanocomposites enhances stability, electrical conductivity, and electrochemical signal while providing a large surface area with numerous binding sites for increased Ab loading. When used as electrode material for CA-125 detection, the AuNPs@ZIF-8@f-MWCNTs demonstrate a detection range of 10 to 10⁻⁶ µg/mL with a lower detection limit (LOD) of 1 pg/mL. Our proposed immunosensor shows promise in detecting CA-125 in human serum samples certified as healthy conditions (with a volume of CA-125 < 35 U/mL), endometriosis, and OC conditions that involve CA-125 match well with the hospital results, especially in endometriosis cases, these results showed that our work very sensitivity to detect the CA-125 at a meager value, present a good potential in advance. In addition, in 3 consecutive tests, the relative standard deviation (RSD) was less than 2.5 %, which still displays excellent stability with 2.5% RSD, a crucial factor for early OC diagnosis and a testament to the reliability of our research.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"50 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of Microstructure and Discharge Performance in Fine-Grained AZ31 Magnesium Alloy Air Battery Anodes Produced via Single-Pass Large Strain Rolling

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-26 DOI: 10.1016/j.electacta.2025.146329

Yuchen Zhao, Tao Jiang, Yong Li, Yonghui Sun, Hongyang Zhao, Guangming Xu

{"title":"Study of Microstructure and Discharge Performance in Fine-Grained AZ31 Magnesium Alloy Air Battery Anodes Produced via Single-Pass Large Strain Rolling","authors":"Yuchen Zhao, Tao Jiang, Yong Li, Yonghui Sun, Hongyang Zhao, Guangming Xu","doi":"10.1016/j.electacta.2025.146329","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146329","url":null,"abstract":"This study utilized single-pass large strain rolling technology to prepare fine-grained AZ31 magnesium alloy anodes with excellent discharge properties. We systematically examined the microstructural evolution, electrochemical behavior, and discharge characteristics of these materials through EBSD, laser confocal three-dimensional morphology analysis, SEM, electrochemical testing, and constant current discharge experiments. The findings highlighted the interplay between the material's recrystallization and its discharge characteristics, along with the corrosion mechanisms active during discharge. Experimental results showed that increased rolling deformation improved both the degree of recrystallization and the anodes' overall discharge performance. Recrystallized grains that were fine and evenly distributed mitigated the depth of corrosion pits, resulting in a smoother electrolyte interface. This structural alteration reduced the chunk effect, enhancing the stability of the discharge process. Notably, anodes deformed by 80% demonstrated optimal comprehensive discharge performance. At a discharge current of 20 mA·cm-2, these anodes achieved an efficiency, discharge capacity, and specific energy of 68.88%, 1538.46 mA h·g-1, and 1764.11 mW h·g-1 respectively, showing an increase of 16.67%, 16.67%, and 17.67% over the base material. Such results confirm the significant benefits of single-pass large strain rolling technology in developing fine-grained magnesium alloy anode materials, offering new avenues for advancing high-performance magnesium-air battery anodes.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"26 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical generation of unconventional cyanide vacancies to boost the catalytic performance of Co-Prussian Blue on oxygen evolution reaction under mild conditions

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-26 DOI: 10.1016/j.electacta.2025.146327

Rafael L. Germscheidt, Ana B.S. de Araujo, João P.B. de Souza, Eduarda Q. Machado, Nycolas S. Galino, Marco A.Z. Arruda, Túlio C.R. da Rocha, Juliano A. Bonacin

{"title":"Electrochemical generation of unconventional cyanide vacancies to boost the catalytic performance of Co-Prussian Blue on oxygen evolution reaction under mild conditions","authors":"Rafael L. Germscheidt, Ana B.S. de Araujo, João P.B. de Souza, Eduarda Q. Machado, Nycolas S. Galino, Marco A.Z. Arruda, Túlio C.R. da Rocha, Juliano A. Bonacin","doi":"10.1016/j.electacta.2025.146327","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146327","url":null,"abstract":"The pursuit of cost-effective and environmentally abundant catalysts operating under mild conditions for water oxidation has directed focus toward Prussian blue analogues (PBAs), nonetheless, the low concentration of active sites still limits their high performance. Hence, here we report a straightforward electrochemical method to generate cyanide vacancies within a CoFePBA catalyst. The obtained material exhibited boosted catalytic performance associated with an enhancement of the available surface Co2+ sites. We report a 30% increase in the presence of CN- defects, resulting in an estimated 32% enhancement in the catalytic activity. Finally, synchrotron-based soft X-ray spectroscopy assisted on the unraveling of key mechanistic insights and showed that the creation of defects can modulate the oxidation states within the material and favor the formation of Fe3+ -CN- Co2+ species, known to be more active. Therefore, this strategy can be presented as an efficient approach to enhance the number of active sites within earth-abundant catalysts.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"26 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring Cationic Functional Groups for Enhanced Stability and Performance in Polysulfone-Based Anion Exchange Membranes

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-26 DOI: 10.1016/j.electacta.2025.146295

Muhammad Habib Ur Rehman, Cataldo Simari, Raffaella Mancuso, David Sebastián, María Jesús Lázaro, Bartolo Gabriele, Isabella Nicotera

{"title":"Tailoring Cationic Functional Groups for Enhanced Stability and Performance in Polysulfone-Based Anion Exchange Membranes","authors":"Muhammad Habib Ur Rehman, Cataldo Simari, Raffaella Mancuso, David Sebastián, María Jesús Lázaro, Bartolo Gabriele, Isabella Nicotera","doi":"10.1016/j.electacta.2025.146295","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146295","url":null,"abstract":"Anion exchange membranes (AEMs) are promising materials for electrochemical systems due to their compatibility with alkaline environments, enabling cost-effective use of non-precious metal catalysts. However, alkaline stability of cationic functional groups remains a key challenge. In this study, polysulfone-based AEMs were synthesized with two ammonium functional groups: trimethylammonium (TMA) and triethylammonium (TEA). NMR spectroscopy (including Pulsed Field Gradient method and relaxometry) and electrochemical impedance spectroscopy were employed to assess microstructure, conductivity, and durability. The shorter TMA chain enhanced hydrophilicity, conductivity, and alkaline stability. Fuel cell tests confirmed the poor chemical stability of qPSU-TEA, which degraded rapidly under operating conditions. In contrast, qPSU-TMA outperformed a commercial membrane (FAA-3-50) under identical conditions, achieving a peak power density of 220 mW/cm² at 60 °C and maintaining high performance at 80 °C. These findings highlight the robust electrochemical stability and interface integrity of qPSU-TMA at elevated temperatures, and underscore the critical role of cationic group design in optimizing AEM performance and durability.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"42 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Degradation of Lithium-ion Batteries Over a Current Ripple Effect

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-04-25 DOI: 10.1016/j.electacta.2025.146326

David Muñoz-Torrero, Enrique García-Quismondo, Edgar Ventosa, Milan Prodanovic, Jesús Palma

{"title":"On the Degradation of Lithium-ion Batteries Over a Current Ripple Effect","authors":"David Muñoz-Torrero, Enrique García-Quismondo, Edgar Ventosa, Milan Prodanovic, Jesús Palma","doi":"10.1016/j.electacta.2025.146326","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.146326","url":null,"abstract":"Fast charging is one of the key technologies for the massive deployment of electric vehicles. A fast charger is a power converter which transforms energy from the AC electricity grid into the rectified DC current needed to charge battery packs. Depending on the type of the charger used, the rectified DC current may inject harmonic current components to the pack. As fast charging is a relatively new technology, limited research output has been found on the application of repetitive cycle tests featuring realistic AC charging current content over a long time. However, several battery testing procedures such as variable power pulses, have been proposed and are widely used to estimate the lifespan of lithium-ion batteries, yet all of them based on well-filtered DC current charging. This article proposes a novel battery testing protocol featuring artificial AC waveform signals used to simulate a fast charger of poor quality applied to commercial electric vehicle batteries. The analysis based on the proposed advanced testing profile estimates that the impact of high amplitude current ripple on battery deterioration can be up to 15% and is capable of providing a robust estimation of the internal impedance associated with a 20% battery capacity loss.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"7 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143872472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0