Journal of Power Sources最新文献_第5页

Sulfur-assisted thermal reduction synthesis of MoO2/Mo4O11 materials as high-performance cathodes for aqueous zinc-ion batteries 硫辅助热还原法制备MoO2/Mo4O11高性能锌离子电池负极材料

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-30 DOI: 10.1016/j.jpowsour.2025.238490

Yixin Tang, Yiman Kang, Liangyu Tang, Miao Shui, Jie Shu

{"title":"Sulfur-assisted thermal reduction synthesis of MoO2/Mo4O11 materials as high-performance cathodes for aqueous zinc-ion batteries","authors":"Yixin Tang, Yiman Kang, Liangyu Tang, Miao Shui, Jie Shu","doi":"10.1016/j.jpowsour.2025.238490","DOIUrl":"10.1016/j.jpowsour.2025.238490","url":null,"abstract":"<div><div>A MoO2/Mo4O11 hetero-junction material prepared by a simple sulfur-assisted thermal reduction technique as the cathode of a water-based zinc-ion battery is reported. Density functionals theories (DFT) calculations reveals that the combining of Mo4O11slab and MoO2slab aids the performance of the material in three aspects. Firstly, the facile 3D diffusion network in the case of Mo4O11slab offers the alternate Zn2+ diffusion passageway when the one dimensional diffusion channel of MoO2 is blocked either by the adsorbed S-species or the stuck Zn2+. Secondly, the formation of MoO2/Mo4O11 hetero-junction expands the interface area from MoO2 side by ca. 3.1 % and this reduces the energy barrier from Zn2c to Zn2d in the MoO2 slab to 0.14 eV. Thirdly, less volume expansion is observed in the case of MoO2 slab with the intercalation of Zn2+ compared with bulk MoO2, indicating more structural stability. Based on the synergistic effect of MoO2 and Mo4O11, the prepared MoO2/Mo4O11 hetero-junction material provides an amazing specific capacity of 260 mAh g−1 after 500 cycles at the current density of 0.5A g−1. During the long cycle (3000 cycles), the specific capacity of 184.1mAh g−1 can be maintained even if the current is as high as 2A g−1.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238490"},"PeriodicalIF":7.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Real-time and optimal energy management strategy via explicit model predictive control for small fuel cell hybrid vehicles 基于显式模型预测控制的小型燃料电池混合动力汽车实时最优能量管理策略

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-30 DOI: 10.1016/j.jpowsour.2025.238499

Wenguang Luo , Ke Zou , Yuang Ma , Hongli Lan

{"title":"Real-time and optimal energy management strategy via explicit model predictive control for small fuel cell hybrid vehicles","authors":"Wenguang Luo , Ke Zou , Yuang Ma , Hongli Lan","doi":"10.1016/j.jpowsour.2025.238499","DOIUrl":"10.1016/j.jpowsour.2025.238499","url":null,"abstract":"<div><div>An energy management strategy (EMS) is the crucial factor in achieving vehicle driving economy, energy source durability and real-time energy allocating. This paper proposes the real-time and optimal EMS for hydrogen fuel cell/power battery-based vehicles with low cost and limited computing power via explicit model predictive control (EMPC). Based on the establishment of prediction model, cost function and constraints, the linear piecewise affine law of EMPC is obtained by offline computation utilizing multi-parameter quadratic programming theory and Matlab's Multi-parameter Toolbox 3. The co-simulation results with Matlab and Advisor demonstrate the strategy reduces equivalent hydrogen consumption by 18.93 %, 2.87 %, 0.76 % and 11.79 %, 5.51 %, 1.22 % respectively compared to the power-following strategy, the power-following fuzzy strategy, and the conventional model predictive control strategy under two standard cycle conditions; and its average computing time within a 1-s sampling period is only 6.48 ms, while those of the other strategies are 1.33, 1.83, and 10.44 times, respectively. Therefore, the strategy provides notable fuel economy and excellent real-time control performance for this type of fuel cell vehicle.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238499"},"PeriodicalIF":7.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sea urchin-like NiCo2O4/Fe3O4 nanocomposite as a high-performance dual-functional material for advanced lithium-ion batteries and supercapacitors 类海胆NiCo2O4/Fe3O4纳米复合材料作为先进锂离子电池和超级电容器的高性能双功能材料

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-30 DOI: 10.1016/j.jpowsour.2025.238480

Shakeel Abbas , Zahid Abbas , Saqib Javed , Junqing Pan , Amina Zafar , Shafqat Karim , Ting Zhu , Amjad Nisar , Mashkoor Ahmad

{"title":"Sea urchin-like NiCo2O4/Fe3O4 nanocomposite as a high-performance dual-functional material for advanced lithium-ion batteries and supercapacitors","authors":"Shakeel Abbas , Zahid Abbas , Saqib Javed , Junqing Pan , Amina Zafar , Shafqat Karim , Ting Zhu , Amjad Nisar , Mashkoor Ahmad","doi":"10.1016/j.jpowsour.2025.238480","DOIUrl":"10.1016/j.jpowsour.2025.238480","url":null,"abstract":"<div><div>The development of advanced electrode materials with multifunctional electrochemical properties is critical for next-generation energy storage systems. In this study, mesoporous sea urchin-like nickel cobaltite/magnetite (NiCo2O4/Fe3O4) composite was synthesized and systematically investigated for lithium-ion batteries and supercapacitors. The resulting composite offers high specific surface area, improved conductivity, abundant active sites and favorable structural characteristics. Density Functional Theory (DFT) calculations reveal that the composite exhibits enhanced redox kinetics and improved charge transfer compared to pristine NiCo2O4, leading to superior electrochemical performance. As an anode for lithium-ion batteries, the NiCo2O4/Fe3O4 electrode delivers a high reversible capacity of ∼730 mAh g−1 at 0.3 A g−1 with excellent cycling stability, retaining 87.1 % of its capacity after 1000 cycles. For supercapacitor applications, the electrode exhibits an enhanced specific capacitance of 1330 F g−1 at 1 A g−1, outperforming both NiCo2O4 and Fe3O4. The assembled (NiCo2O4/Fe3O4//activated carbon) device achieved a specific capacitance of 221 F g−1 and an energy density of 69.6 Wh kg−1, along with excellent cycling stability, retaining ∼94 % capacitance after 8000 cycles. These results highlight the potential of NiCo2O4/Fe3O4 nanostructures for high-performance energy storage systems.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238480"},"PeriodicalIF":7.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sandwich confinement engineering of tin sulfide in nitrogen/sulfur-co-doped hollow carbon spheres for efficient sodium storage 氮/硫共掺杂中空碳球中硫化锡的夹层约束工程

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-30 DOI: 10.1016/j.jpowsour.2025.238498

Yali Yang , Tianyu Li , Ning Sun , Yang Zhao , Dai Zhang , Bin Xu , Reiner Anwander , Yucang Liang

{"title":"Sandwich confinement engineering of tin sulfide in nitrogen/sulfur-co-doped hollow carbon spheres for efficient sodium storage","authors":"Yali Yang , Tianyu Li , Ning Sun , Yang Zhao , Dai Zhang , Bin Xu , Reiner Anwander , Yucang Liang","doi":"10.1016/j.jpowsour.2025.238498","DOIUrl":"10.1016/j.jpowsour.2025.238498","url":null,"abstract":"<div><div>Due to the ultralow sodium-ion storage capacity (300 mAh g−1) of carbon materials, incorporating high-capacity components into a carbon matrix has attracted wide attention. To maximize the advantages of high-sodium-storage-capacity composites and mitigate common drawbacks (volume expansion, poor electronic conductivity, and sluggish Na+ diffusion kinetics), the microstructural and morphological optimization of the carbon matrix is crucial. Herein, a sandwich confinement strategy was developed to confine SnS — a high-sodium-storage-capacity — within N/S-co-doped hollow double carbon layered spheres (SnS@h-NSCs). Robust Sn-C and C-S bonds promote structural stability and strong interfacial interactions between SnS and the N/S-co-doped carbon matrix. With increasing SnS loading, the optimized double-layer carbon matrix in SnS@h-NSCs efficiently alleviated volume expansion and enhanced electronic conductivity and facilitated Na+ migration kinetics. As a result, the anodic SnS@h-NSCs in sodium-ion batteries exhibited significant improvements in initial discharge capacities from 464 to 710 mAh g−1 and the initial Coulombic efficiencies from 50.5 to 68.3 % compared to hollow N-doped carbon spheres (h-NCs). Low-SnS-loading SnS@h-NSCs showed excellent reversibility, while high SnS-loading SnS@h-NSCs exhibited a moderate capacity fading after 100 cycles, highlighting the importance of structural integrity through strong SnS‒carbon interactions (Sn‒C and C‒S bonds) in mitigating the volume expansion, and promoting stability, efficient electron transport, and Na+ migration, and underscoring the challenge of maintaining structural integrity at elevated active material content.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238498"},"PeriodicalIF":7.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Complete solid-solution reaction and reversible anionic redox chemistry in sodium-ion batteries enabled by local structure regulation and charge compensation 钠离子电池中完全固溶反应和可逆阴离子氧化还原化学的局部结构调节和电荷补偿

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-30 DOI: 10.1016/j.jpowsour.2025.238487

Kunxi Lü, Yuxun Xia, QinMao Wu, Mingwei Hu, Zongnan Li, Yafeng Li, Mingdeng Wei

{"title":"Complete solid-solution reaction and reversible anionic redox chemistry in sodium-ion batteries enabled by local structure regulation and charge compensation","authors":"Kunxi Lü, Yuxun Xia, QinMao Wu, Mingwei Hu, Zongnan Li, Yafeng Li, Mingdeng Wei","doi":"10.1016/j.jpowsour.2025.238487","DOIUrl":"10.1016/j.jpowsour.2025.238487","url":null,"abstract":"<div><div>Layered iron/manganese-based oxides, recognized as promising cathode candidates for sustainable energy storage due to their high energy density and natural abundance, face critical challenges in stabilizing cationic (transition metal) and anionic (lattice oxygen) redox reactions during high-voltage cycling. To address these issues, we designed a Cu/B co-doped P2-type Na0.7Fe0.2Cu0.1Li0.1B0.02Mn0.6O2 (NFCLBM) cathode. The synergistic effects of robust Cu-O and B-O covalent bonds enhance oxygen framework rigidity, effectively suppressing O2− overoxidation at high voltages. Concurrently, Cu doping activates a Mn/O charge compensation mechanism, mitigating capacity decay caused by oxygen loss while improving air stability. Consequently, NFCLBM delivers an initial capacity of 135.5 mAh g−1 at 1 C and maintains 84.58 % capacity retention after 200 cycles. In situ X-ray diffraction reveals the complete solid solution reaction mechanism of NFCLBM during charging and discharging, indicating its excellent structural stability.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238487"},"PeriodicalIF":7.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Na-ion storage performance of graphite and nanocarbons: Na-diglyme co-intercalation into graphene nanosheets 石墨和纳米碳的钠离子存储性能：钠二甘胺共嵌入石墨烯纳米片

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-30 DOI: 10.1016/j.jpowsour.2025.238410

Yunan Liu , Xianwei Hu , Ali Reza Kamali

{"title":"Na-ion storage performance of graphite and nanocarbons: Na-diglyme co-intercalation into graphene nanosheets","authors":"Yunan Liu , Xianwei Hu , Ali Reza Kamali","doi":"10.1016/j.jpowsour.2025.238410","DOIUrl":"10.1016/j.jpowsour.2025.238410","url":null,"abstract":"<div><div>This study explores the sodium-ion (Na-ion) storage performance of various carbon materials, including commercially available carbon nanoparticles (C45), natural and artificial graphite, and few-layer graphene produced through a green and sustainable molten salt exfoliation method. Structural, microstructural, electrical and electrochemical characteristics of these materials are evaluated in both ester-based (carbonate) and ether-based (diglyme) electrolytes. While Na-ion intercalation into graphite and graphene remains limited in conventional ester electrolytes, co-intercalation with diglyme in ether-based systems is highly effective. Among the materials studied, the few-layer graphene exhibits the most promising electrochemical performance, delivering a rising capacity of 235 mAh/g after 220 cycles at 100 mA/g, with Na-ion diffusion reaching 8.4 × 10−11 cm2/s after 150 cycles. This performance is attributed to graphene's exceptional electrical conductivity (1336 S/m at 6.2 MPa) and its nano-layered structure, which facilitates the formation of stable Na-diglyme intercalation compounds. In situ charge/discharge-Raman spectroscopy confirms this mechanism, revealing voltage plateaus at 0.58–0.63 V (discharge) and 0.66–0.80 V (charge), along with Raman features at 1456 and 1461 cm−1. These findings demonstrate the high electrochemical potential of ether-compatible graphene-based anode for sustainable Na-ion storage.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238410"},"PeriodicalIF":7.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal assessment of pole-integrated LiFePO4 energy storage system for arid and non-maintainable locations - A case study in Qatar 干旱和不可维护地区极集成LiFePO4储能系统的热评估-卡塔尔案例研究

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-29 DOI: 10.1016/j.jpowsour.2025.238444

Khaled A'amar, Muhammad Usman Sajid, Yusuf Bicer, Tareq Al-Ansari

{"title":"Thermal assessment of pole-integrated LiFePO4 energy storage system for arid and non-maintainable locations - A case study in Qatar","authors":"Khaled A'amar, Muhammad Usman Sajid, Yusuf Bicer, Tareq Al-Ansari","doi":"10.1016/j.jpowsour.2025.238444","DOIUrl":"10.1016/j.jpowsour.2025.238444","url":null,"abstract":"<div><div>Deploying pole-integrated LiFePO4 storage in hot, low-maintenance urban settings poses a thermal safety challenge. This study assesses the thermal behavior of pole-integrated LiFePO4 energy storage systems (PIESS) in extreme desert conditions and identifies measures to keep temperatures within safe limits. Field data from 75 PIESS installations across Doha were combined with multiphysics simulations using COMSOL to analyze the internal temperature evolution under varied ambient conditions and charging rates. Six thermal management strategies, including three passive measures (air volume expansion, shading, and heat insulation), two active approaches (forced air convection and thermoelectric Peltier modules), and operational limits that constrain charge/discharge to safe envelopes, are evaluated. The selected methods emphasize low power and scalable solutions, in contrast to liquid or phase change cooling systems commonly reported in the literature, which are often impractical for decentralized applications. The results indicate that at lower charging rates, the battery temperature remains below the critical 60 °C threshold. Active cooling with a 10 W fan limited the temperature rise to 60.8 °C after 1 h at 1C, while multi-module Peltier systems maintained it around 60.6 °C. Passive strategies like air volume expansion and shading provide only modest buffering and are insufficient at high charge rates. The operational limit case demonstrated that maintaining an appropriate charge-to-load ratio effectively restricted the battery temperature within safe boundaries, even under high ambient conditions. These findings provide a thermally validated design approach for enhancing the safety and reliability of battery storage in smart urban infrastructure powered by renewable energy.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238444"},"PeriodicalIF":7.9,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unraveling reaction pathways in H2O–CO2 co-electrolysis for tunable syngas composition in solid oxide electrolysis cell 固体氧化物电解池中可调合成气组成的H2O-CO2共电解反应途径的揭示

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-29 DOI: 10.1016/j.jpowsour.2025.238500

Shuidan Gu , Shiming Hu , Caichen Yang , Yunfeng Tian , Kaisheng Xia , Jian Pu , Bo Chi

{"title":"Unraveling reaction pathways in H2O–CO2 co-electrolysis for tunable syngas composition in solid oxide electrolysis cell","authors":"Shuidan Gu , Shiming Hu , Caichen Yang , Yunfeng Tian , Kaisheng Xia , Jian Pu , Bo Chi","doi":"10.1016/j.jpowsour.2025.238500","DOIUrl":"10.1016/j.jpowsour.2025.238500","url":null,"abstract":"<div><div>H2O–CO2 co-electrolysis in solid oxide electrolysis cells (SOECs) represents an efficient approach to syngas (H2 + CO) production, enabling downstream synthesis of carbon-neutral fuels. However, complex competing pathways—particularly the poorly understood CO2 reduction mechanism—hinder precise control of syngas composition. Here, we experimentally determine the onset voltage of CO2 electrolysis under co-electrolysis conditions, addressing existing gaps in the early literature. By coupling electrochemical analysis with outlet gas analysis, two voltage-dependent regimes are identified: at low voltages, CO is primarily generated via the thermochemical reverse water-gas shift (RWGS) reaction, while at high voltages, both RWGS and CO2 electrolysis occur, with RWGS remaining dominant. The onset voltages for CO2 electrolysis are precisely determined as 0.9 V, 1.1 V, and 1.2 V for atmospheres of 20 % H2O–80 % CO2, 50 % H2O–50 % CO2, and 80 % H2O–20 % CO2, respectively, marking the transition from pure H2O electrolysis to H2O–CO2 co-electrolysis. Feed composition is the dominant factor influencing the onset voltage and syngas selectivity, while operating parameters such as flow rate and temperature also have noticeable effects, enabling wide H2/CO range ratio (1.09–5.40). These results provide new insights into the CO2 reduction pathway and offer guidance for the rational design of SOEC operation for controllable syngas production.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238500"},"PeriodicalIF":7.9,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From electrochemical performance to mechanical Issues: A review on silicon anode architectures for advanced lithium-ion batteries 从电化学性能到力学问题：先进锂离子电池硅阳极结构研究综述

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-29 DOI: 10.1016/j.jpowsour.2025.238423

Kydyr Askaruly , Zhazira Supiyeva , Seitkhan Azat , Yelriza Yeszhan , Xuexue Pan , Kenneth Ozoemena , Sonia Dsoke , Qamar Abbas

{"title":"From electrochemical performance to mechanical Issues: A review on silicon anode architectures for advanced lithium-ion batteries","authors":"Kydyr Askaruly , Zhazira Supiyeva , Seitkhan Azat , Yelriza Yeszhan , Xuexue Pan , Kenneth Ozoemena , Sonia Dsoke , Qamar Abbas","doi":"10.1016/j.jpowsour.2025.238423","DOIUrl":"10.1016/j.jpowsour.2025.238423","url":null,"abstract":"<div><div>The increasing demand for high-energy-density lithium-ion batteries in electronics and electric vehicles has spurred significant research into silicon anodes. This article reviews key structural variants—nanostructured, micron-scale, and three-dimensional (3D) silicon anodes—highlighting their advantages, challenges, and solutions. While nanostructured silicon offers high specific capacity and stability, it suffers from low conductivity, significant volume expansion, and poor cycling life. To address these, strategies such as nanostructural Si designs, introducing conductive/buffering agents (e.g., graphene, MXene), and polymeric binders are discussed. Micron-scale silicon partially alleviates expansion due to its larger size, but still faces challenges in conductivity and cycling stability; morphological optimization strategies are explored. Conversely, 3D structured silicon demonstrates excellent electrochemical performance from its unique architecture, though conductivity and volume expansion remain issues. The review covers state-of-the-art methods, including the above approaches and functional additives, to achieve stable cycling. Finally, future development pathways such as novel structural designs, material innovation, and application prospects are considered, indicating silicon's potential as a robust anode material for future lithium-ion batteries.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"659 ","pages":"Article 238423"},"PeriodicalIF":7.9,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ polymerized electrolyte enabling high-voltage (4.6 V) full-cell lithium-ion batteries 原位聚合电解质实现高压（4.6 V）全电池锂离子电池

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2025-09-29 DOI: 10.1016/j.jpowsour.2025.238521

Xinyao She , Jianli Gai , Xiaosong Liu

{"title":"In-situ polymerized electrolyte enabling high-voltage (4.6 V) full-cell lithium-ion batteries","authors":"Xinyao She , Jianli Gai , Xiaosong Liu","doi":"10.1016/j.jpowsour.2025.238521","DOIUrl":"10.1016/j.jpowsour.2025.238521","url":null,"abstract":"<div><div>The commercial deployment of lithium batteries is limited by the safety concerns of liquid electrolytes and the poor ionic conductivity of solid-state electrolytes. In this work, a lithium secondary battery is developed via in-situ polymerization of poly(ethyl 4,4,4-trifluorocrotonate) (PTCA-SPE), yielding an electrolyte with enhanced safety, interfacial compatibility, thermal stability, and high ionic conductivity. When applied in a 4.6 V lithium-rich (OLO)|Gr-Si soft-pack full cell with an energy density of 350 Wh kg−1, the battery exhibits stable electrochemical performance. The thermal runaway threshold is elevated by 20 °C compared to a conventional liquid electrolyte, and capacity retention after 300 cycles at 0.33 C is substantially improved. The coordination between Li+ and C=O/C–O functional groups facilitate effective lithium ion dissociation and transport. As a result, PTCA-SPE forms a rapid and well-organized ion transport pathway, delivering a high ionic conductivity of 6.93 × 10−3 S cm−1, a lithium-ion transference number of 0.84, and an electrochemical stability window exceeding 6.0 V. Beyond lithium-ion batteries, PTCA-SPE also significantly enhances the cycling stability and thermal safety of sodium-ion batteries and high-voltage NCM-based systems.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238521"},"PeriodicalIF":7.9,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0