Batteries & Supercaps最新文献

{"title":"Adjust the pH Value of the Electrolyte to Improve the Performance of Aqueous Zinc-Ion Batteries by Using Citric Acid Additives","authors":"Min-wei Peng,&nbsp;Xu-qiao Hu,&nbsp;Li-li Du,&nbsp;Lu-wen Jiao,&nbsp;Yu-han Wu,&nbsp;Yu-hang Zhang,&nbsp;Fa-nian Shi,&nbsp;Zhe Gong,&nbsp;Peng-fei Wang","doi":"10.1002/batt.70491","DOIUrl":"https://doi.org/10.1002/batt.70491","url":null,"abstract":"<p>Aqueous zinc‑ion batteries (AZIBs) are regarded as the next generation of promising energy storage system. Their advantages include low cost, high safety, and environmental friendliness. However, problems such as hydrogen evolution reaction (HER), dendrite growth, and zinc anode corrosion seriously limit their cycle stability and reversibility. In this research, citric acid (CA) was added as a multifunctional additive to the traditional ZnSO₄ electrolyte to systematically investigate its improvement effect and mechanism on the performance of AZIBs. Through electrochemical testing and material characterization, it was found that the coordination interaction between CA and Zn²⁺ could promote uniform nucleation, inhibit dendrite growth. And under specific conditions, the Zn//Zn symmetric cell can achieve stable cycling for nearly 1000 h, while also inhibiting the generation of by-products. The full cell test using the self-made sodium-doped V₂O₅ as the positive electrode and Zn as the negative electrode showed that the electrolyte containing CA additive made the oxidation–reduction voltage of the cell slightly lower at different sweep rates, and the discharge capacity was higher at different current densities, with better electrode electrochemical performance. This study provides new ideas for the development of low-cost and eco-friendly electrolyte additives.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward a Standardized Classification of Surface Defects in the Coating and Drying Processes of Lithium-Ion Battery Electrode Manufacturing","authors":"Fabian Kux,&nbsp;Julian Wonneberger,&nbsp;Thomas Ackermann,&nbsp;Michael Przybylek,&nbsp;Alexander Mattern","doi":"10.1002/batt.70481","DOIUrl":"https://doi.org/10.1002/batt.70481","url":null,"abstract":"<p>High scrap rates are a key challenge for industrial lithium-ion battery production. The coating and drying process is particularly scrap-intensive due to surface defects; therefore, precise defect control is necessary as part of quality assurance. The lack of standardization in defect description and classification complicates the use of automated inspection technologies, leads to inconsistent decisions regarding scrap, and hinders the development of specific troubleshooting strategies. In this work, we introduce a comprehensive multilayer defect catalog that systematically identifies and describes specific surface defects that occur during the coating and drying processes. To establish a robust framework for subsequent investigations, a literature review was conducted in the initial phase. In the next step, graphite-based electrodes were manufactured at pilot scale under conditions comparable to commercial production at reduced throughput. Defects that occurred during the process were detected using an inline surface inspection system, while a digital optical microscope enabled detailed postprocess analysis. The developed catalog includes a comprehensive database of common defect types, providing detailed specifications of features such as exact dimensions and height profiles, as well as the possibility for future expansion.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.70481","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategic Design of Ceramic-Coated Separators for Fast-Charging Safety Through Evaluating the Impact of Coating Methodology on Li+ Flux Uniformity and Thermal Stability","authors":"Yeongsu Hwang,&nbsp;Soyoon Choi,&nbsp;Minjae Kim","doi":"10.1002/batt.70478","DOIUrl":"https://doi.org/10.1002/batt.70478","url":null,"abstract":"<p>The separator plays a pivotal role in governing safety and electrochemical performance in lithium-ion batteries (LIBs), particularly under fast-charging conditions where nonuniform lithium-ion (Li⁺) flux and thermal instability become critical challenges. Here, we investigate how coating methodology affects the structural, thermal, and electrochemical properties of ceramic-coated separators, comparing a Al₂O₃/poly(acrylic acid) composite layer fabricated via doctor blade coating and electrospinning. The blade-coated separator forms a dense, mechanically robust ceramic layer with superior tensile strength (4307.1 gf) and thermal stability (open-circuit voltage retention of 765.4 s at 150 °C), but its increased tortuosity and pore-blocking effects hinder ion transport under high-rate conditions. In contrast, the electrospun separator forms a highly porous, interconnected network with improved ionic conductivity (0.877 mS cm⁻¹), reduced charge–transfer resistance, the highest capacity retention (57.62% after 100 cycles at 0.5 C), and superior rate capability up to 5 C. Postmortem analysis confirms that the homogenized Li⁺ flux from the electrospun architecture minimizes differential volumetric strain in the SiO_<i>x</i> composite anode, suppressing crack formation and resistance growth. These findings establish that pore architecture, rather than chemical composition, primarily governs Li⁺ flux uniformity, rate performance, and thermal safety, offering design guidelines for next-generation fast-charging LIB systems.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ten Ways to Quickly Create Improved Battery Press Releases and Social Media Posts","authors":"Patrik Johansson,&nbsp;Helena Berg,&nbsp;Patricia M. C. Huijbers,&nbsp;Reza Younesi","doi":"10.1002/batt.70475","DOIUrl":"https://doi.org/10.1002/batt.70475","url":null,"abstract":"<p>Many battery researchers, across academia and industry, are frustrated with the time and effort they need to spend “battling” or commenting on “fantastic” battery news [<span>1</span>], especially from hitherto completely unknown actors, forwarded by management, nontechnical business colleagues, or friends. This is often accompanied by challenging questions such as: <i>Why are we not doing this? Are we really so far behind?</i> or simply: <i>Can you check and explain to me/us?</i>, <i>etc</i>. To avoid adding to this, what if there were a quick and efficient way to create more precise and factual press releases and social media posts? Here, we present a checklist with ten simple “Yes/No” questions, made to improve your own news items and to facilitate a basic assessment. It is not designed to be a pass/fail test, but a majority of “yes” answers generally indicates a more informative and transparent communication, while a majority of “no” answers should trigger scrutiny, both from the sender and the receiver. Obviously, to enable someone to truly evaluate your discovery/innovation/technology, quite some additional information is required, such as electrochemical data, cost analysis, and upscaling challenges, but we think the checklist anyhow could be a rather fair starting point. While it is easy to see the mote in your brother's eye but not the beam in your own, we hope and think that this checklist can also be useful to fairly assess press releases and social media posts created by others. They do come a plenty, as battery innovation is both urged for and challenging, and thus exciting breakthroughs in the area also deserve attention by many. At the same time, clear and evidence-based communication is critical for maintaining the trust of the public and enabling constructive discussions between stakeholders. We hope this checklist can contribute to more balanced conversations by helping both creators and readers of battery-related news focus on the information that matters most.</p><p>\u0000 </p><p>So, what to do if you arrive at several “No” above? It is very easy to say: “Re-write and be more critical about your text and biases.” It would, however, also be useful to have some resources to point to and concrete advice to give. While the resources we have found [<span>2-4</span>] rather focus on how to get the most (immediate) impact and many are especially directed toward early-stage researchers, we anyway both hope and are convinced that by combining them with a reflecting attitude inspired from this Guest Editorial, better press releases and social media posts can be created by everyone in the battery field—if there's willingness to walk the extra mile.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.70475","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Front Cover: Design of Iron Complex Anolytes Using Phosphonate and Carboxylate Chelators for All-Soluble Fe-Based Redox-Flow Batteries (Batteries & Supercaps 10/2026)","authors":"Gabriel S. Nambafu,&nbsp;Aaron M. Hollas,&nbsp;Peter S. Rice,&nbsp;J. Mark Weller,&nbsp;Gyohun Choi,&nbsp;Dawei Feng,&nbsp;David M. Reed,&nbsp;Guosheng Li","doi":"10.1002/batt.70500","DOIUrl":"https://doi.org/10.1002/batt.70500","url":null,"abstract":"<p><b>The Front Cover</b> shows how strategic ligand design tunes iron redox chemistry for safer, more durable, and scalable flow batteries. Phosphonate-based complexes deliver lower redox potentials (higher output voltages) and enhanced stability compared with carboxylate analogues. This work provides molecular-level guidance for next-generation\u0000high-performance Fe-RFB electrolyte development. More information can be found in the Research Article by G. Li and co-workers (DOI: 10.1002/batt.70408).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.70500","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship Between Contact Resistance in e−-Conductive Pathways and Mechanical Properties of Active Materials in Microstructurally-Controlled Composite Electrodes for Sulfide All-Solid-State Batteries","authors":"Kenta Watanabe,&nbsp;Yoko Yamada,&nbsp;Masaki Shishido,&nbsp;Yuqi Wang,&nbsp;Kakeru Murakami,&nbsp;Ryoji Kanno,&nbsp;Masaaki Hirayama","doi":"10.1002/batt.70485","DOIUrl":"https://doi.org/10.1002/batt.70485","url":null,"abstract":"<p>The microstructures of composites and mechanical properties of solid electrolytes (SEs) have been extensively studied for all-solid-state batteries (ASSBs). However, the mechanical properties of active materials (AMs) have received little attention despite the use of hard oxide materials, primarily because soft sulfide SEs are typically employed. The relationship between the contact resistance in e⁻-conductive pathways and the mechanical properties of AMs in microstructurally-controlled composite electrodes was clarified by combining scanning spread resistance microscopy (SSRM) and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX). SEM-EDX observations revealed that the LiCoO₂ regions in LiCoO₂–Li₁₀GeP₂S₁₂ composites contained numerous interfaces and voids. SSRM imaging confirmed both high and low contact resistances within the LiCoO₂ regions. Conversely, continuous connections without interfaces or voids were established in the graphite regions of graphite–Li₁₀P₃S₁₂Br composites, resulting in low contact resistances and uniform e⁻-conductive pathways. Furthermore, e⁻-conductive pathways were readily formed in the graphite regions even when the graphite/Li₁₀P₃S₁₂Br ratios were decreased to levels causing apparent graphite localization in the cross-sections. These differences in contact resistance mainly arise from differences in deformability associated with material hardness, suggesting that AMs and SEs require high deformability to construct ASSBs composite electrodes with highly e⁻-conductive pathways.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.70485","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insight Into the Effect of Doping on the Calcination of Nickel-Rich Layered Oxide Positive Electrode Materials","authors":"Anna Kobets,&nbsp;Alisa Bogdanova,&nbsp;Hua Jiang,&nbsp;Janez Košir,&nbsp;Binglu Wang,&nbsp;Filipp Obrezkov,&nbsp;Basit Ali,&nbsp;Ulla Lassi,&nbsp;Tanja Kallio","doi":"10.1002/batt.70483","DOIUrl":"https://doi.org/10.1002/batt.70483","url":null,"abstract":"<p>Ni-rich layered oxides such as LiNi_0.8Mn_0.1Co_0.1O₂ (i.e., NMC811) are popular cathode materials providing high practical specific capacities and energy densities, suffering from variety side reactions which can be overcome by changing the synthesis conditions and implementation of additional elements into the NMC811 crustal structure. In this work, the influence of Mg incorporation pathway and calcination conditions on the structural and electrochemical performance of NMC811 is systematically investigated. Two doping strategies are compared: Mg introduction during lithiation step and a combined dual doping approach, when Mg introduced during both coprecipitation and lithiation steps. Three NMC811(OH)₂ precursors with varying Mg contents were synthesized to evaluate the role of Mg during precursor formation. In situ high-temperature X-ray diffraction revealed a lithiation window of 700–900 °C, with complete lithiation achieved at 800 °C, while higher temperatures (at 900 °C) led to rapid primary particle growth and degradation of secondary particles. Electrochemical measurements demonstrated higher capacities at 850 °C and comparable capacity retention (∼84% after 100 cycles) especially for the dual Mg-doped NMC811. These results highlight dual Mg doping as an effective strategy to enhance NMC811 performance.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.70483","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Research on Nickel-Based Metal–Organic Framework-Modified Carbon Cloth as Three-Dimensional Current Collector","authors":"Zilong Jiang,&nbsp;Longyang Zhou,&nbsp;Minghuan Jin,&nbsp;Weihua Zhang,&nbsp;Daying Guo,&nbsp;Xi’an Chen,&nbsp;Shun Wang","doi":"10.1002/batt.70488","DOIUrl":"https://doi.org/10.1002/batt.70488","url":null,"abstract":"<p>Lithium–sulfur (Li–S) batteries have garnered significant attention in next-generation energy storage due to their high theoretical energy density, cost-effectiveness and environmental friendliness. To address the critical challenges faced by lithium metal anodes during cycling-specifically lithium dendrite growth, substantial volume expansion, and excessive electrolyte consumption. This study designs and constructs a composite 3D current collector by uniformly growing nickel-based metal–organic framework (MOF) nanosheets, namely nickel naphthalene-dicarboxylate (Ni-NDC), onto flexible carbon cloth (CC). The incorporation of Ni-NDC not only substantially increases the specific surface area of the carbon cloth but also facilitates uniform and dense lithium deposition by effectively adsorbing lithium-ion through its abundant nickel-containing lithiophilic groups, which significantly lowers the nucleation barrier. This synergistic effect effectively suppresses dendrite formation, mitigates volume expansion during the plating process, and minimizes the parasitic consumption of the electrolyte. Electrochemical performance tests indicate that the CC@Ni-NDC current collector exhibits superior cycling stability and rate capability. Furthermore, when the CC@Ni-NDC@Li anode is applied to a Li–S full cell, it maintains a high discharge capacity of 631.5 mAh g⁻¹ after 200 cycles at 1 C. This study provides an effective materials design strategy and theoretical reference for the development of highly stable and long-life practical lithium metal batteries.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Data-Driven Online Capacity Estimation Method for Series Battery Packs Minimizing Equivalent Circuit Model and State-of-Charge Estimation Errors","authors":"Yongzhe Kang,&nbsp;Qingpeng Zhang,&nbsp;Yunpeng Xing,&nbsp;Zhongkai Zhou,&nbsp;Rui Zhu,&nbsp;Bin Duan","doi":"10.1002/batt.70467","DOIUrl":"https://doi.org/10.1002/batt.70467","url":null,"abstract":"<p>Accurate battery-pack capacity estimation is crucial for efficient battery management in electric vehicles, yet existing methods face challenges arising from the complex degradation mechanisms of series-connected packs. This paper presents a data-driven method that avoids error-prone battery modeling and state-of-charge estimation. We analyze the degradation trajectory of an eight-cell series-connected battery pack and identify voltage-evolution characteristics during constant-current charging. A method for quantifying pack inconsistency based on late-stage charging-voltage characteristics is proposed. By combining this method with an individual-cell capacity estimation technique based on the incremental-capacity-curve peak, the pack capacity is estimated. For the tested eight-module LiNCM battery pack, experimental results obtained at 25 °C under a 1/3C constant-current charging condition show that the mean MAE across the three module-level termination-voltage cases of 4.0, 4.1, and 4.2 V is 1.74%, while the maximum absolute pack-capacity estimation error is 3.94%.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 9","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148993981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Manganese-Based Prussian Blue Analogs Synthesized by Two-Step Precipitation as Cathode Materials for Magnesium-Ion Batteries","authors":"Jinxing Wang,&nbsp;Peiyang Zhang,&nbsp;Jingdong Yang,&nbsp;Jiaxu Wang,&nbsp;Xinlong Xie,&nbsp;Guangsheng Huang,&nbsp;Jingfeng Wang","doi":"10.1002/batt.70472","DOIUrl":"https://doi.org/10.1002/batt.70472","url":null,"abstract":"<p>Prussian blue analogs (PBAs) are promising cathode candidates for magnesium-ion batteries (MIBs), but manganese-based PBA (MnHCF) suffers from severe Jahn–Teller distortion and sluggish Mg²⁺ diffusion kinetics caused by the high charge density of divalent Mg²⁺. Herein, Co-doped MnHCF (CoMnHCF) with a well-defined hollow square structure is fabricated via a citrate-assisted two-step precipitation method, which achieves simultaneous crystal phase regulation, morphology optimization and coordination environment tuning specifically for Mg²⁺ storage. The microstructure, morphology and Mg-storage performance are systematically characterized by XRD, FTIR, SEM/EDS, CV, GCD, EIS and ex situ XRD. Results demonstrate that Co doping transforms MnHCF from a monoclinic block/bar-like structure to a cubic/tetragonal hollow square architecture with enhanced crystallinity andmodulated cyanide coordination environment. CoMnHCF exhibits significantly enhanced electrochemical performance: 86.14% capacity retention after 200 cycles at 50 mA g⁻¹, 72.78% after 1000 cycles at 500 mA g⁻¹, and only 71.7% increase in charge-transfer resistance after 1000 cycles. This improvement arises from reduced phase transitions, enhanced ion transport kinetics and lower migration energy barriers. This study confirms Co doping is an effective strategy for MnHCF modification, providing an excellent cathode candidate for MIBs and new insights for Prussian blue analog structural engineering.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 9","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}