Battery Energy最新文献_第10页

Uncovering Full-Cell Cycling Morphology Through a Rechargeable Sodium Ion Battery Based on Tungsten Oxide and Sodium Prussian Blue Intercalation Chemistry 基于氧化钨和普鲁士蓝钠嵌入化学的可充电钠离子电池的全电池循环形态

Battery Energy Pub Date : 2025-10-29 DOI: 10.1002/bte2.20250056

Maria Helena Braga, Nishchith B. S., Radha Shivaramaiah, T. Ravi Kumar

{"title":"Uncovering Full-Cell Cycling Morphology Through a Rechargeable Sodium Ion Battery Based on Tungsten Oxide and Sodium Prussian Blue Intercalation Chemistry","authors":"Maria Helena Braga, Nishchith B. S., Radha Shivaramaiah, T. Ravi Kumar","doi":"10.1002/bte2.20250056","DOIUrl":"https://doi.org/10.1002/bte2.20250056","url":null,"abstract":"Half-cells have been employed to investigate the intrinsic electrochemical behavior of the cathode material, as the chemical potential of the alkali metal reference electrode remains relatively constant during discharge. However, in full cells, the discharge mechanism is anode-dependent. Herein, a rechargeable nonaqueous sodium ion battery (SIB) is fabricated using tungsten trioxide (WO3) nanopowder on a graphite substrate as the anode and a nickel-hexacyanoferrate Prussian blue (PB) cathode to understand the dominant discharge mechanism. The battery cells are evaluated for reversibility and durability and exhibit reversible charge–discharge plateaus, confirming sodium-ion intercalation/deintercalation in both electrodes. The sodium-ion diffusion coefficient of 5.3 × 10−13 cm2.s−1 calculated using electrochemical impedance spectroscopy (EIS) is consistent with a planar finite space diffusion mechanism. Cyclic voltammetry (CV) shows a broad reversible redox peak on the WO3 anode, owing to its multiple valence states, also observed in potential versus differential capacitance (dQ/dV) and simulated density of states (DOS). The full cell demonstrates an open-circuit voltage (OCV) of 2.2 V (charged), a discharge capacity of 79 mAh.g−1 at 0.1C rate, and retains 69% of its capacity after 500 cycles, indicating promising durability and reversibility for sodium-ion storage. The charge carrier concentration (ccc), DOS, electrical and thermal conductivities, and chemical potential simulations for the charged and discharged phases, in both electrodes, reveal that the anode determines the shape of the discharge curve and the cathode the capacity of the cell. This study paves the way to predicting the behavior of a full cell, including cycling curve shape, process, dependencies, and thermal runaway.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20250056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145751288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cross-Linked Acrylate Binder for High-Rate Graphite Anodes 高速率石墨阳极用交联丙烯酸酯粘结剂

Battery Energy Pub Date : 2025-10-27 DOI: 10.1002/bte2.20250059

Katarzyna Hofmann, Anna Smith, Norbert Willenbacher

{"title":"Cross-Linked Acrylate Binder for High-Rate Graphite Anodes","authors":"Katarzyna Hofmann, Anna Smith, Norbert Willenbacher","doi":"10.1002/bte2.20250059","DOIUrl":"https://doi.org/10.1002/bte2.20250059","url":null,"abstract":"Sodium carboxymethyl cellulose (CMC) and polyacrylic acid (PAA) are state-of-the-art binders in aqueous-processed anodes for lithium-ion batteries. Binders act as dispersing agents and rheology modifiers in aqueous slurries, while also providing mechanical integrity of dry electrodes during battery fabrication and operation. However, despite their low concentration, they may have detrimental effects on the conductivity and electrochemical performance of batteries, for example, due to their adsorption on active material particles, which is supposed to limit Li+ insertion and extraction, but also affect electrode microstructure and adhesion to the current collector. Here, a commercially available, cross-linked acrylate binder (Carbopol® Ultrez10, x-PAA) with high thickening efficiency is applied for graphite anodes. At lower polymer content, anode slurries based on x-PAA exhibit high-shear viscosities similar to those of the CMC reference and provide a yield stress, which is advantageous for slurry stability. Furthermore, SBR content could be reduced without loss of adhesion strength compared to the CMC reference, since x-PAA does not adsorb onto graphite. Thus, the total binder content could be lowered by about 40% in comparison to reference anodes comprising CMC. The substantial reduction in total binder amount resulted in slightly lower long-term stability compared to the reference cell including CMC. Cells incorporating x-PAA, however, outperformed references under fast-charging conditions (up to 5C) presumably since x-PAA does not adsorb on graphite, thus enabling more effective Li+ insertion and extraction. Further refinement of crosslinking microstructure may enable fabrication of electrodes with higher energy density and higher capacity retention during cycling, irrespective of cycling rate.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20250059","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145695432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Room Temperature Calcium-Ion Battery Enabled by Calcium Citrate as a Calcium Salt 以柠檬酸钙为钙盐的室温钙离子电池

Battery Energy Pub Date : 2025-10-22 DOI: 10.1002/bte2.20250071

Ameneh Taghavi-Kahagh, Hossein Roghani-Mamaqani, Mehdi Salami-Kalajahi

{"title":"Room Temperature Calcium-Ion Battery Enabled by Calcium Citrate as a Calcium Salt","authors":"Ameneh Taghavi-Kahagh, Hossein Roghani-Mamaqani, Mehdi Salami-Kalajahi","doi":"10.1002/bte2.20250071","DOIUrl":"https://doi.org/10.1002/bte2.20250071","url":null,"abstract":"This study explores the development of calcium-ion batteries (CIBs) by focusing on the design of a novel electrolyte to overcome key challenges, such as poor calcium plating/stripping. Hydrated vanadium pentoxide (H-V₂O₅) served as the cathode, and graphite acted as the anode. Tricalcium dicitrate tetrahydrate (Ca-citrate) salt was used for the first time in an ethylene carbonate/propylene carbonate (EC/PC) solvent system. Ca-citrate showed marked improvement in ionic conductivity (up to 2.6 × 10−1 S/cm) and electrochemical stability (~6 V) relative to traditional Ca-nitrate (2.5 V) and also displayed better capacity retention. To solve the solubility limitations of Ca-citrate in EC/PC, highly diluted (0.001 M) solution of EC/PC and modified electrolytes with cosolvents like poly(ethylene glycol) 200 (PEG 200) and trifluoroacetic anhydride (TFA) were studied. PEG 200 increased solubility and stability through hydrogen bonding, while TFA increased ionic mobility but decreased electrochemical stability. The PEG-modified electrolyte achieved a stability window of ~4 V with a charge/discharge capacity of ~198 mAh/g. Additionally, using ethylene glycol (EG) as an alternative solvent increased the electrochemically reversible, soluble, and capacitive Ca-citrate (up to 708 mAh/g, 85 mA/g). EG-based electrolyte showed high columbic efficiency (~99%–100%) and stable interfacial behavior.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20250071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145751122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical Evaluation of Polydopamine/MXene Nanocomposite Cathodes for Lithium- and Potassium-Ion Batteries 锂、钾离子电池用聚多巴胺/MXene纳米复合阴极的电化学评价

Battery Energy Pub Date : 2025-10-22 DOI: 10.1002/bte2.20250032

Amirreza Namvar-Amghani, Marzieh Golshan, Hossein Roghani-Mamaqani, Mehdi Salami-Kalajahi

{"title":"Electrochemical Evaluation of Polydopamine/MXene Nanocomposite Cathodes for Lithium- and Potassium-Ion Batteries","authors":"Amirreza Namvar-Amghani, Marzieh Golshan, Hossein Roghani-Mamaqani, Mehdi Salami-Kalajahi","doi":"10.1002/bte2.20250032","DOIUrl":"https://doi.org/10.1002/bte2.20250032","url":null,"abstract":"In this study, a series of polydopamine (PDA)/MXene nanocomposites with varying weight ratios (90:10, 70:30, and 50:50) are synthesized via in situ polymerization and evaluated as cathode materials for both lithium-ion (LIBs) and potassium-ion batteries (KIBs). Electrochemical evaluations revealed superior performance of these composites in LIB systems, attributed to smaller ionic radius and faster diffusion kinetics of Li⁺ compared to K⁺. PDA exhibits low capacities of 98.6 and 96.1 mAh g-1 for LIB and KIB, respectively. The incorporation of conductive MXene into PDA resulted in significantly improved performance. The PDA90MXene10, PDA70MXene30, and PDA50MXene50 nanocomposites delivered high specific capacities of 198.5, 297.8, and 246.6 mAh g−1 for LIBs, and 165.3, 249.3, and 171.8 mAh g−1 for KIBs, respectively, at 100 mA g−1. These materials also exhibited excellent rate capabilities, with capacities of 133.1, 171.4, and 163.4 mAh g−1 for LIBs, and 131.1, 151.5, and 125.2 mAh g−1 for KIBs at a high current density of 5 A g−1. Among all compositions, PDA70MXene30 demonstrated the most outstanding electrochemical performance, underscoring synergistic effect between redox-active PDA and highly conductive MXene nanosheets. This synergy facilitates improved electron transport and ion diffusion, making PDA70MXene30 a promising candidate for high-performance cathodes in both LIBs and KIBs.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20250032","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145739760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Back Cover Image, Volume 4, Issue 6, November 2025 封底图片，第四卷，第六期，2025年11月

Battery Energy Pub Date : 2025-10-21 DOI: 10.1002/bte2.70059

引用次数: 0

Cover Image, Volume 4, Issue 6, November 2025 封面图片，第四卷，第6期，2025年11月

Battery Energy Pub Date : 2025-10-21 DOI: 10.1002/bte2.12197

引用次数: 0

Electrochemical Modeling and Degradation Analysis of Lithium-Ion Batteries in High Temperature Environments 高温环境下锂离子电池的电化学建模与降解分析

Battery Energy Pub Date : 2025-10-17 DOI: 10.1002/bte2.20250043

Fei Chen, Fan Yang, Haoran Chu, Jiatong Xu, Kaiyi Yang, Justice D. Akoto, Ali Haider, Xingrui Wang, Jie Yang, Xinhua Liu, Zhiming Feng, Rui Tan

{"title":"Electrochemical Modeling and Degradation Analysis of Lithium-Ion Batteries in High Temperature Environments","authors":"Fei Chen, Fan Yang, Haoran Chu, Jiatong Xu, Kaiyi Yang, Justice D. Akoto, Ali Haider, Xingrui Wang, Jie Yang, Xinhua Liu, Zhiming Feng, Rui Tan","doi":"10.1002/bte2.20250043","DOIUrl":"https://doi.org/10.1002/bte2.20250043","url":null,"abstract":"Simulation models are of great importance in understanding the complexities of the internal electrochemical processes within batteries, aiding in design optimization and advancing energy storage technologies. One of the central challenges lies in predicting battery lifespan and elucidating side reactions under extreme operating conditions. This study aims to design an electrochemical model that considers multiple side reactions to predict the cycle life of lithium-ion batteries in high temperature environments. First, a basic simulation framework is established using a simplified electrochemical-mechanical coupling model. Subsequently, multiscale characterization of aged batteries is performed to identify five types of side reactions, encompassing phenomena such as solid electrolyte interphase (SEI) growth, cracking of negative electrode particles, electrolyte oxidation and decomposition/deposition of active materials. A comprehensive battery life prediction model is constructed by modeling these side reactions. Finally, the accuracy of the life prediction is validated using high temperature cycling data. The conclusions reveal that electrolyte decomposition and the loss of active material are the primary causes of battery degradation under high temperature conditions.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20250043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145739800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation Into the Properties of γ-Valerolactone and γ-Butyrolactone Imide-Based Electrolytes for Lithium-Ion Batteries 锂离子电池用γ-戊内酯和γ-丁内酯亚胺基电解质性能研究

Battery Energy Pub Date : 2025-10-17 DOI: 10.1002/bte2.20250034

Khai Shin Teoh, Wanja Timm Schulze, Zihan Song, Alexander Croy, Juan Luis Gómez Urbano, Stefanie Gräfe, Andrea Balducci

{"title":"Investigation Into the Properties of γ-Valerolactone and γ-Butyrolactone Imide-Based Electrolytes for Lithium-Ion Batteries","authors":"Khai Shin Teoh, Wanja Timm Schulze, Zihan Song, Alexander Croy, Juan Luis Gómez Urbano, Stefanie Gräfe, Andrea Balducci","doi":"10.1002/bte2.20250034","DOIUrl":"https://doi.org/10.1002/bte2.20250034","url":null,"abstract":"This study presents a detailed comparative study of lactone-based electrolytes (γ-valerolactone, GVL and γ-butyrolactone, GBL) combined with lithium imide-based salts, namely lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and lithium bis(fluoromethanesulfonyl)imide (LiFSI). Propylene carbonate is employed as a reference electrolyte solvent. The physicochemical properties of these electrolyte systems are determined experimentally and further calculated using our developed computational model. Besides, in-silico investigations are used to reveal valuable insights into the molecular interactions of the electrolyte components, such as self-diffusion coefficients and radial distribution functions. Furthermore, the suitability of lactone-based electrolytes for electrochemical applications is demonstrated by their promising rate capability and cycling stability over 200 cycles in graphite half-cells, especially with 1 M LiTFSI and 2 wt% vinylene carbonate, together with their favorable performance on lithium iron phosphate. An excellent capacity retention achieved in a full-cell configuration (> 80% after 200 cycles) further validates the potential of lactones as battery solvent alternatives, with GVL standing out due to its bio-based origin.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20250034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145686244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amorphous Sub-Stoichiometric Silicon Carbide (a-SiCx) Particles From the Gas Phase for Battery Applications 用于电池的非晶亚化学计量碳化硅（a-SiCx）气相颗粒

Battery Energy Pub Date : 2025-09-24 DOI: 10.1002/bte2.20250041

Moritz Loewenich, Jędrzej Kondek, Michael Ryan Hansen, Hartmut Wiggers

{"title":"Amorphous Sub-Stoichiometric Silicon Carbide (a-SiCx) Particles From the Gas Phase for Battery Applications","authors":"Moritz Loewenich, Jędrzej Kondek, Michael Ryan Hansen, Hartmut Wiggers","doi":"10.1002/bte2.20250041","DOIUrl":"https://doi.org/10.1002/bte2.20250041","url":null,"abstract":"Capacity fading during cycling remains a significant challenge for silicon-based anode materials in Li-ion batteries. Amorphous, sub-stoichiometric silicon carbide (a-SiCx) nanoparticles have proven to be more stable than pure silicon, albeit with lower lithiation capacities. The incorporation of carbon during the nanoparticle synthesis is highly effective in the suppression of crystalline phases during both synthesis and cycling. In this study, a-SiCx materials with varying carbon concentrations (up to 22 wt.%) were produced via gas-phase synthesis in a hot-wall reactor. The primary objective is to understand the mechanism of carbon incorporation into the silicon particles, and secondly its impact on material properties and battery performance. Based on extensive materials science investigations and NMR analyses, we have determined that carbon is incorporated together with hydrogen, which further promotes amorphization. Furthermore, cycling analysis shows a strongly increased stability with 85% retention after 200 cycles for materials with more than 10 wt.% carbon, probably mainly due to a reduced buildup of internal resistances and reduced volume expansion. Furthermore, crystalline Si-Li-phases cannot be formed in this material during lithiation enabling deep lithiations, and Coulombic efficiency is increased. These results suggest that a-SiCx is a promising alternative to pure silicon as an anode material.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20250041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cover Image, Volume 4, Issue 5, September 2025 封面图片，第四卷，第五期，2025年9月

Battery Energy Pub Date : 2025-09-07 DOI: 10.1002/bte2.12195

引用次数: 0