Electrochemistry Communications最新文献

{"title":"Nanoporous ZnGa2O4-modified separator as a multifunctional polysulphide barrier for advanced lithium-sulfur batteries","authors":"Zifan Wang,&nbsp;Wensi Li,&nbsp;Tianzhen Wang,&nbsp;Mingyuan Pang,&nbsp;Zhen Kong,&nbsp;Juan An,&nbsp;Zhen Li,&nbsp;Jiajia Ye,&nbsp;Guang Xia","doi":"10.1016/j.elecom.2025.107990","DOIUrl":"10.1016/j.elecom.2025.107990","url":null,"abstract":"<div><div>Nanoporous ZnGa₂O₄ was synthesised as a separator modifier for lithium‑sulfur batteries via a one-step sol-gel process followed by high-temperature calcination. The modified separator could effectively adsorb and catalyse lithium polysulphides, thus inhibiting the shuttle effect and improving their redox kinetics. The three-dimensional porous structure of ZnGa₂O₄ with high surface area that can effectively relieve the volume expansion of S₈ during cycling process and provide transport channels for both electrons and Li⁺ ion. Consequently, the battery with the ZnGa₂O₄ interlayer exhibited excellent reversibility and stability, with a reversible capacity of 723.4 mAh·g⁻¹ after 300 cycles at 1C. Furthermore, Li<img>S cells with modified separators demonstrated enhanced rate capability (704.3 mAh g⁻¹ at 5C) compared with commercial separators.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"178 ","pages":"Article 107990"},"PeriodicalIF":4.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cycling stability of lithium-ion batteries with pressure-treated NCM811 cathodes","authors":"Yusuke Abe,&nbsp;Yuki Kumagai,&nbsp;Mahmudul Kabir,&nbsp;Seiji Kumagai","doi":"10.1016/j.elecom.2025.108002","DOIUrl":"10.1016/j.elecom.2025.108002","url":null,"abstract":"<div><div>This study developed an effective approach for improving the cycling performance of NCM811-based lithium-ion batteries (LIBs) at a charge rate of 5C. The charge–discharge performance of LIBs with pressure-treated NCM811 cathodes was investigated. The cathode coating, comprising NCM811, acetylene black, and polyvinylidene fluoride, was compressed at pressures of 10–40 MPa. Galvanostatic charge–discharge tests revealed that a treatment pressure of 40 MPa improved the storage performance at ≥5C under the LIB full-cell configuration. After pressure treatment, NCM811-based LIBs exhibited excellent cycling stability over 500 charge–discharge cycles at 5C. After 500 cycles, energy-dispersive X-ray analysis confirmed that the dissolution of transition metals from the NCM811 cathode and their deposition at the graphite anode were inhibited. High-pressure treatment modified the morphology of the NCM811 cathodes, resulting in favorable electrochemical properties. The proposed NCM811 electrodes are promising for the development of power-type LIBs with high energy densities and long cycle lifetimes.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"178 ","pages":"Article 108002"},"PeriodicalIF":4.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Extreme fast charging of Lithium-ion batteries using flash graphene additive","authors":"Ulya Saffanah ,&nbsp;Winona Avis ,&nbsp;Hendri Widiyandari ,&nbsp;Arif Jumari ,&nbsp;Agus Purwanto","doi":"10.1016/j.elecom.2025.107984","DOIUrl":"10.1016/j.elecom.2025.107984","url":null,"abstract":"<div><div>The battery can be charged to 80 % of its state of charge (SOC) within 15 min, which is a significant factor contributing to the widespread adoption of electric vehicles (EVs) due to the alleviation of range anxiety. However, the realization of fast charging batteries is hindered by intricate challenges, including lithium-ion diffusion, lithium plating over the anode, charging protocols, and economic considerations. Graphene, renowned for its exceptional conductivity and facilitating lithium transport, emerges as a promising candidate for incorporation into fast-charging batteries. Cost-effectiveness is a key consideration, and alternative low-cost methods for graphene production are essential for the advancement of fast charging battery development. Flash joule heating emerges as a cost-effective approach to convert amorphous hard carbon into flash graphene (FG) as confirms by Raman characterization. Scanning electron microscopy (SEM) characterization reveals that FG exhibits a multilayer structure and a turbostratic pattern with a substantial surface area. Subsequently, FG is incorporated into the NMC811 cathode to fabricate a fast-charging lithium-ion battery. The FG-NMC battery demonstrates an initial specific capacity of 173.2 mAh.g⁻¹. The extreme fast charging (XFC) testing procedure (CC-CV protocol at 5C) results in a charging time of 13 min stores 117.6 mAh.g⁻¹ (SOC of 80.1 %), meeting the criteria for a fast-charging battery. The capacity retention after 150 cycles under extreme charging (5C) and discharging (5C) is 87.4 % demonstrates that FG possesses the potential to be a cost-effective additive for energy-dense fast charging batteries suitable for electric vehicle applications.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"177 ","pages":"Article 107984"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-channel Hcy/FA aptasensors and cTnT immunosensors used for early screening of H-type hypertension and myocardial infarction","authors":"Xinjie Song ,&nbsp;Jie Fu ,&nbsp;Jiawang Wang ,&nbsp;Fangying Xiong ,&nbsp;Jing Zhang ,&nbsp;Shuang Li","doi":"10.1016/j.elecom.2025.107966","DOIUrl":"10.1016/j.elecom.2025.107966","url":null,"abstract":"<div><div>Elevated levels of homocysteine (Hcy) and decreased levels of folic acid (FA) are frequently observed in individuals with H-type hypertension (HTH). However, HTH increases Repeatability, reproducibility and stability of Hcy aptasensorrisk of acute myocardial infarction (AMI). Elevated cardiac troponin T (cTnT) levels are particularly significant in patients with AMI. Nevertheless, the effective detection of Hcy, FA, and cTnT remains challenging due to the lack of a reliable, cost-effective, and rapid method that can accurately predict, promptly detect, and effectively guide the treatment of these conditions. To address this issue, aptasensors for Hcy and FA as well as immunosensors for cTnT were developed based on amultiple electrochemical system. The concentration of Hcy and FA exhibited a good linear relationship with the relative redox peak current within the ranges of 1–100 μM and 10–50 nM, respectively, due to conformational changes in the aptamer. Similarly, the concentration of cTnT demonstrated a good linear relationship with the relative redox peak current of the electrode within the range of 1–60 pg/mL, attributed to changes in electron transfer following antigen-antibody binding. The experimental results confirmed that the aptasensors and immunosensors exhibited excellent repeatability, reproducibility, stability, and specificity. In real serum sample, this biosensor showed an acceptable recovery rate. These findings suggest that the proposed sensors hold significant potential for the early detection of HTH and AMI.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"177 ","pages":"Article 107966"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of equilibrium potential of Cl2/Cl− redox couple in molten chlorides","authors":"Zujian Tang ,&nbsp;Qilin Yuan ,&nbsp;Shangping Zhu ,&nbsp;Osamu Takeda ,&nbsp;Hongmin Zhu","doi":"10.1016/j.elecom.2025.107980","DOIUrl":"10.1016/j.elecom.2025.107980","url":null,"abstract":"<div><div>The current interruption method is used to determine the equilibrium potential of the Cl₂/Cl⁻ redox couple, and the theory behind the measurement is discussed. Different AgCl/Ag reference electrodes are prepared and calibrated by measuring the equilibrium potential of Cl₂/Cl⁻ redox couple. Cyclic voltammograms against the different AgCl/Ag reference electrodes before and after calibration in pure lithium chloride are reported, showing good agreement with thermodynamic calculations.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"177 ","pages":"Article 107980"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical corrosion of highly conductive Ti-Al-C, (Ti,Mo)-Al-C and (Ti,Cr)-Al-C coatings deposited by hybrid magnetron sputtering using MAX phases-based target","authors":"Viktoriia Shtefan ,&nbsp;Tetiana Prikhna ,&nbsp;Olexandr Kuprin ,&nbsp;Viktoriya Podhurska ,&nbsp;Orest Ostash ,&nbsp;Pavel Potapov ,&nbsp;Semyon Ponomaryov ,&nbsp;Myroslav Karpets ,&nbsp;Volodymyr Sverdun ,&nbsp;Viktor Moshchil ,&nbsp;Tetiana Serbenyuk","doi":"10.1016/j.elecom.2025.107977","DOIUrl":"10.1016/j.elecom.2025.107977","url":null,"abstract":"<div><div>Amorphous highly conductive coatings Ti-Al-C, (Ti,Mo)-Al-C and (Ti,Cr)-Al-C were deposited on titanium alloy substrates by hybrid magnetron using T₂AlC and Ti₃AlC₂ MAX-phases-based targets and in parallel cathode-arc evaporation of Mo or Cr targets. The (Ti,Cr)-Al-C coating showed the highest electrochemical corrosion resistance among all deposited coatings in 3.5 wt% NaCl aqueous solution at 25 °C: corrosion potential <em>E</em>_{<em>corr</em>} = 0.044 V vs. saturated calomel electrode, corrosion current density <em>i</em>_{<em>corr</em>} = 2.48 × 10⁻⁹ A/cm². The (Ti,Cr)-Al-C coating also demonstrated the highest long-term oxidation resistance, and after heating in air at 600 °C for 1000 h, its surface electrical conductivity became even slightly higher after long-term heating: increased from <strong>σ</strong> = 9.84 × 10⁶ S/m to <strong>σ</strong> = 4.35 × 10⁵ S/m, which is explained by the crystallization of the amorphous coating during heating process. The nanohardness and Young's modulus of the coating after deposition were within 15 GPa and 240 GPa, respectively. The hybrid magnetron deposited (Ti,Cr)-Al-C coatings can be used to protect interconnects in lightweight molten carbonate fuel cells elements.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"177 ","pages":"Article 107977"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First-principles investigation of structural, electronic, mechanical, and optical properties of Tl-based halide perovskites (TlXF3; X = Ti, Zr) for reflective coating applications","authors":"Amina ,&nbsp;Maryam Liaqat ,&nbsp;Salhah Hamed Alrefaee ,&nbsp;Muhammad Inam Ul Haq ,&nbsp;Dilsora Abduvalieva ,&nbsp;Naseem Akhter ,&nbsp;Vineet Tirth ,&nbsp;Ali Algahtani ,&nbsp;Amnah Mohammed Alsuhaibani ,&nbsp;Moamen S. Refat ,&nbsp;N.M.A. Hadia","doi":"10.1016/j.elecom.2025.107951","DOIUrl":"10.1016/j.elecom.2025.107951","url":null,"abstract":"<div><div>The pursuit of advanced materials to address global energy challenges has directed attention to halide perovskites, known for their promising technological applications. In this study, we investigate the structural, electronic, elastic, and optical properties of Tl-based fluoro-perovskites TlXF₃ (X = Ti, Zr) using density functional theory (DFT) with the Wien2k package. Structural stability is confirmed via tolerance factor analysis, while thermodynamic stability is validated through negative formation energies. Phonon dispersion calculations affirm the dynamic stability of these compounds. The optimized lattice constants are found to be 4.25 and 4.47 Å. Employing the modified Becke-Johnson potential, the electronic band structure and density of states are computed revealing a half-metallic nature of both compounds, with excellent consistency between band structure and density of states findings. In both material the valence and conductions bands are overlapped at Fermi level for spin up configuration while in spin down configuration they have band gap of 4.8 eV and 5.6 eV for TlTiF₃ and TlZrF₃ respectively. Elastic properties show that both TlTiF₃ and TlZrF₃ meet mechanical stability criteria, with TlTiF₃ demonstrating superior resistance to compressive and shear stresses, indicating enhanced mechanical robustness. The elastic analysis further indicates anisotropic, ductile behavior in both compounds. Optical analysis across a broad energy range highlights the potential of these materials for optoelectronic applications, suggesting their suitability for advanced device architectures. This study provides a foundation for further experimental exploration and device innovation in the field of halide perovskites.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"177 ","pages":"Article 107951"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solution combustion synthesis of disordered spinel LiMn1.5Ni0.5O4 cathode material using PVP fuel","authors":"M. Azari,&nbsp;S.M. Masoudpanah,&nbsp;S. Alamolhoda","doi":"10.1016/j.elecom.2025.107945","DOIUrl":"10.1016/j.elecom.2025.107945","url":null,"abstract":"<div><div>In this research, the LiMn_1.5Ni_0.5O₄ powders were prepared by solution combustion method using metal nitrates as an oxidant and various amounts of polyvinylpyrrolidone (PVP) as fuel. The effects of PVP contents and calcination treatment on the Mn³⁺proportion, morphology, and electrochemical properties were explored. The calcination treatment included the two-step process (pretreatment at 450 °C and then calcination at 800 °C) and one-step treatment at 600 °C. Single-phase LiMn_1.5Ni_0.5O₄ powders with disordered spinel crystal structure (space group of Fd3m) were crystallized by calcination at 600 °C at the lowest fuel contents. The LiMn_1.5Ni_0.5O₄ particles had octahedral morphology even at the calcination temperature of 600 °C. The LiMn_1.5Ni_0.5O₄ powders calcined using the two-step process exhibited comparable lithium-ion storage performance, including a capacity retention of 99 % following 200 charge/discharge cycles at 1C and a specific capacity of 110 mAh g⁻¹.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"177 ","pages":"Article 107945"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of lithium salt anions on the interfacial properties of PEO-based solid-state electrolytes","authors":"Yi-Min Wei ,&nbsp;An Qiu ,&nbsp;Jingchao Wang ,&nbsp;Yu Gu ,&nbsp;Jian-Feng Li","doi":"10.1016/j.elecom.2025.107979","DOIUrl":"10.1016/j.elecom.2025.107979","url":null,"abstract":"<div><div>The use of poly(ethylene oxide) (PEO)-based solid-state electrolytes have shown potential to improve both the energy density and safety performance of lithium-metal batteries. However, these electrolytes often form unstable interfaces with lithium metal anodes, compromising the durability and sustained performance of solid-state lithium-metal batteries. In this study, three lithium salts, lithium (fluorosulfonyl) (trifluoromethanesulfonyl)imide (LiFTFSI), lithium bis(fluorosulfonyl)imide (LiFSI), and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), were each mixed in equimolar ratios with tetraethylene glycol dimethyl ether (G4) and introduced as a conductivity enhancer in PEO-based solid-state electrolytes. The effects of the lithium salt anions on the electrolyte properties were systematically investigated. Among the three, the fluorosulfonyl group was found to enhance ionic conductivity, while the trifluoromethanesulfonyl group improved thermal stability. Notably, the synergistic interaction between these two groups in LiFTFSI led to the formation of a stable solid-electrolyte interphase (SEI), characterized by a higher content of inorganic species and reduced organic components. As a result, LiFTFSI/G4-based solid-state electrolytes enabled stable cycling for 200 cycles at a 0.5C rate in LiFePO₄-based solid-state lithium-metal batteries, achieving a capacity retention of 91 %. This study provides valuable insights into the optimization of high-efficiency solid-state lithium-metal batteries by elucidating the distinct roles of lithium salt anions.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"177 ","pages":"Article 107979"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploration of the structural, optical, and dielectric performance of Mg-doped Sr2FeNbO6 double perovskite for wireless applications","authors":"Asif Ullah ,&nbsp;Farman Ullah ,&nbsp;Kamran Ullah ,&nbsp;Fida Rehman ,&nbsp;Aiyeshah Alhodaib ,&nbsp;Salhah Hamed Alrefaee ,&nbsp;Shaxnoza Saydaxmetova ,&nbsp;Salah Knani ,&nbsp;Vineet Tirth ,&nbsp;Ali Algahtani ,&nbsp;Abid Zaman","doi":"10.1016/j.elecom.2025.107981","DOIUrl":"10.1016/j.elecom.2025.107981","url":null,"abstract":"<div><div>This study examined the effects of Mg doping on the structural, optical, photoluminescence, and dielectric properties of a series of double perovskite Sr_2-xMgₓFeNbO₆ (0.00 ≤ x ≤ 0.40) ceramics that is successfully manufactured by using the mixed oxide route. It was proven by X-ray diffraction that a single-phase monoclinic perovskite (space group P21/c.) had formed, and at increasing Mg concentrations, SEM showed reduced porosity and increased grain uniformity. Tauc analysis and UV–Vis spectroscopy revealed a consistent decrease of the bandgap from 2.77 eV to 2.46 eV, which was ascribed to defect-induced electronic states and lattice distortion. The presence of levels of recombination-active defects was further confirmed by photoluminescence spectra. At high temperatures (∼560 °C), dielectric studies revealed a low loss (tanδ = 2.0) and a high dielectric constant (εᵣ ≈800), which made these materials attractive options for wireless communication components. Mg-doped Sr₂FeNbO₆ ceramics have the potential for advanced applications in microwave electronics and optoelectronics due to their superior dielectric behavior, bandgap tunability, and integrated structural stability.</div></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"177 ","pages":"Article 107981"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}