Journal of Solid State Electrochemistry最新文献

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Interfacial modulation and performance enhancement of zinc-modified copper foil collectors for sodium-metal batteries 钠金属电池用锌修饰铜箔集热器的界面调制及性能增强
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-04-21 DOI: 10.1007/s10008-026-06588-y
Qingshuo Yang, Yuwen Zhao, Yuefang Chen, Zhijie Zhou, Weijie L., Yifang Zhang, Mengmeng Zhang, Zhijia Zhang
{"title":"Interfacial modulation and performance enhancement of zinc-modified copper foil collectors for sodium-metal batteries","authors":"Qingshuo Yang,&nbsp;Yuwen Zhao,&nbsp;Yuefang Chen,&nbsp;Zhijie Zhou,&nbsp;Weijie L.,&nbsp;Yifang Zhang,&nbsp;Mengmeng Zhang,&nbsp;Zhijia Zhang","doi":"10.1007/s10008-026-06588-y","DOIUrl":"10.1007/s10008-026-06588-y","url":null,"abstract":"<div>\u0000 \u0000 <p>The insufficient sodiophilicity and uneven distribution of active sites on Cu current collector surfaces hinder the induction of uniform nucleation, which severely limits the cycle life of sodium metal batteries. Therefore, controlling the interfacial structure and sodium deposition behaviour of current collectors is crucial for achieving stable and long-life sodium metal batteries. In this work, a clean and pollution-free magnetron sputtering process was employed to deposit a Zn modification layer with a thickness of approximately 40 nm onto the surface of the Cu current collector. Owing to the high atomic mobility of Zn and its strong tendency to alloy with Cu, mutual diffusion gradually occurs between the Zn layer and Cu substrate during sodium deposition and stripping, inducing the formation of CuZn alloy phases. The electronic interactions in the CuZn alloy induce a rearrangement of the Cu surface d states, which enhances hybridisation between the d states and the Na 3s orbital and increases the Na adsorption energy from − 1.48 eV to − 2.14 eV. As a result, the CuZn-alloy-modified current collector exhibits excellent electrochemical performance. The Zn@Cu symmetric cell remains stable for 1400 h, and the full cell retains 92.7% capacity after 1600 cycles at 5 C.</p>\u0000 </div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 7","pages":"2737 - 2748"},"PeriodicalIF":3.1,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Symmetric supercapacitor study of flaky α-Bi2O3 derived from Bi-based coordination polymer 铋基配位聚合物中片状α-Bi2O3对称超级电容器的研究
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-04-20 DOI: 10.1007/s10008-026-06589-x
Deep Lata Singh, Harikrishna RB, Vineet Mishra, Tapan Kumar Ghosh, G. Ranga Rao
{"title":"Symmetric supercapacitor study of flaky α-Bi2O3 derived from Bi-based coordination polymer","authors":"Deep Lata Singh,&nbsp;Harikrishna RB,&nbsp;Vineet Mishra,&nbsp;Tapan Kumar Ghosh,&nbsp;G. Ranga Rao","doi":"10.1007/s10008-026-06589-x","DOIUrl":"10.1007/s10008-026-06589-x","url":null,"abstract":"<div>\u0000 \u0000 <p>New synthetic strategies are paramount for innovation in eco-friendly and non-toxic energy storage materials and technologies. Supercapacitors have garnered considerable interest as advanced energy storage devices owing to their exceptional electrochemical properties. This study explores the synthesis of active α-Bi<sub>2</sub>O<sub>3</sub> from a bismuth-based coordination polymer (Bi-CP) as a precursor, which is obtained by the hydrothermal method. Hexagonal-shaped crystals of Bi-CP were formed, and each Bi(III) metal ion in the crystal forms nine coordination bonds with the ligand molecules (pyridine-2,6-dicarboxylic acid). This is followed by the calcination of Bi-CP to derive environment-friendly flaky nano α-Bi<sub>2</sub>O<sub>3</sub>. The three-electrode study was carried out using an α-Bi<sub>2</sub>O<sub>3</sub> electrode in the 2 M KOH medium, showing the maximum specific capacity of 422 C g<sup>‒1</sup> at a current density of 2 A g<sup>‒1</sup> in the potential window of 0.0 V to 0.45 V. In the symmetrical supercapacitor study, the energy density and power density of α-Bi<sub>2</sub>O<sub>3</sub>, evaluated by the integration method, are 3.5 Wh kg<sup>‒1</sup> and 210 W kg<sup>‒1</sup> respectively.</p>\u0000 <span>AbstractSection</span>\u0000 Graphical Abstract\u0000 <div><figure><div><div><picture><source><img></source></picture></div><div><p>α-Bi<sub>2</sub>O<sub>3</sub> derived from Bi-coordination polymer in electrochemical energy storage studies using Swagelok cell</p></div></div></figure></div>\u0000 \u0000 </div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 7","pages":"2725 - 2735"},"PeriodicalIF":3.1,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assembling free-standing and aligned cobalt-doped MoS2/graphene composites fiber with high-performance flexible fiber-shaped sodium batteries 组装独立和排列钴掺杂MoS2/石墨烯复合纤维与高性能柔性纤维形钠电池
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-04-18 DOI: 10.1007/s10008-026-06587-z
Xiaoxuan Ma, Kun Zhang, Caixia Li, Wenning Yan, Chao Chen
{"title":"Assembling free-standing and aligned cobalt-doped MoS2/graphene composites fiber with high-performance flexible fiber-shaped sodium batteries","authors":"Xiaoxuan Ma,&nbsp;Kun Zhang,&nbsp;Caixia Li,&nbsp;Wenning Yan,&nbsp;Chao Chen","doi":"10.1007/s10008-026-06587-z","DOIUrl":"10.1007/s10008-026-06587-z","url":null,"abstract":"<div>\u0000 \u0000 <p>Fiber-shaped rechargeable batteries hold promise as power sources for wearable electronics. A free-standing and flexible Co doped MoS<sub>2</sub>/graphene composite fiber has been fabricated as anode for fiber-shaped sodium-ion batteries by wet-spinning. The ultrathin MoS<sub>2</sub> nanosheets are interoverlapped with graphene to construct sheet-on-sheet structure within the fiber. Benefiting from the effect of Co doped catalyst, the fiber achieves the reversible conversable reaction from Mo/Na<sub>2</sub>S to MoS<sub>2</sub> in the charging process. For comparison, the fiber displays irreversible conversion reaction from Mo/Na<sub>2</sub>S to Mo/S without Co doped. Therefore, the Co doped catalyst effectively maintains the interoverlapped sheet-on-sheet structure, preventing the aggregation of Mo metal clusters and the dissolution of sulfide during repeated charge/discharge processes. As expected, the designed fiber exhibits high reversible capacity of 224.1 mAh g<sup>− 1</sup> at 2.0 A g<sup>− 1</sup> after 1000 cycles and superior rate capability (188.7 mAh g<sup>− 1</sup> at 2.0 A g<sup>− 1</sup>). Additionally, the assembled fiber-shaped Na<sup>+</sup> full batteries deliver an outstanding electrochemical performance of 211.9 mAh g<sup>− 1</sup> at 0.1 A g<sup>− 1</sup> after 200 cycles with the energy density of 273.5 Wh kg<sup>− 1</sup>. This work may promote a new fiber-shaped electrode-design paradigm towards broaden the transition metal selenides/sulfides/phosphides for application in flexible energy storage devices.</p>\u0000 </div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 7","pages":"2711 - 2724"},"PeriodicalIF":3.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Professor Dimitra Sazou on the occasion of her retirement Dimitra Sazou教授在她退休的时候
IF 2.6 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-04-13 DOI: 10.1007/s10008-026-06579-z
Athanasios A. Papaderakis, Antonis Karantonis
{"title":"Professor Dimitra Sazou on the occasion of her retirement","authors":"Athanasios A. Papaderakis,&nbsp;Antonis Karantonis","doi":"10.1007/s10008-026-06579-z","DOIUrl":"10.1007/s10008-026-06579-z","url":null,"abstract":"","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 6","pages":"2103 - 2104"},"PeriodicalIF":2.6,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148008602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and characterization of a novel Ti/IrO2/(NbxOy)-SnO2 anode: Enhanced photo–assisted electrochemical treatment of bisphenol F 新型Ti/IrO2/(NbxOy)-SnO2阳极的合成与表征:增强光辅助电化学处理双酚F
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-04-11 DOI: 10.1007/s10008-026-06578-0
Aline Resende Dória, Gessica de Oliveira Santiago Santos, Fausto Eduardo Bimbi Jr, Robson da Silva Souto, Marcos Roberto de Vasconcelos Lanza
{"title":"Synthesis and characterization of a novel Ti/IrO2/(NbxOy)-SnO2 anode: Enhanced photo–assisted electrochemical treatment of bisphenol F","authors":"Aline Resende Dória,&nbsp;Gessica de Oliveira Santiago Santos,&nbsp;Fausto Eduardo Bimbi Jr,&nbsp;Robson da Silva Souto,&nbsp;Marcos Roberto de Vasconcelos Lanza","doi":"10.1007/s10008-026-06578-0","DOIUrl":"10.1007/s10008-026-06578-0","url":null,"abstract":"<div>\u0000 \u0000 <p>The growing presence of organic pollutants in the environment, with potential for bioaccumulation, poses serious risks to humans, animals, and aquatic organisms. Electrochemical advanced oxidation processes (EAOP) offer a promising solution for degrading these contaminants. This study proposes an effective strategy for enhancing the stability of SnO<sub>2</sub>–based electrodes by incorporating an IrO<sub>2</sub> interlayer, into these electrodes, there by addressing a key limitation of conventional materials used in EAOP. Ti/IrO<sub>2</sub>/Nb<sub>x</sub>O<sub>y</sub>–SnO<sub>2</sub> electrodes were synthesized via the Pechini method, and the effect of calcination temperatures (400, 500, and 600 °C) was evaluated. Based on X–ray diffraction analyses, SnO<sub>2</sub> was found to maintain its rutile phase across all the temperatures investigated, whereas NbO<sub>2</sub> underwent conversion from the rutile to monoclinic Nb<sub>2</sub>O<sub>5</sub> phase at 600 °C. The 500 °C electrode exhibited the highest electrochemically active surface area (2.2 and 3.0 times higher than of the 500 °C and 400 °C electrodes, respectively) and the lowest charge transfer resistance, though it displayed limited stability. The 500 °C electrode exhibited the best catalytic performance (~ 40% BPF removal in 90 min), achieving faster kinetics, a stronger synergistic effect (682%), and the lowest energy consumption (74 kWh L<sup>–1</sup> order<sup>–1</sup>) when applied under the photo–assisted electrochemical oxidation process. The electrodes proposed in this study represent a significant advancement in the development of stable and efficient low–cost materials for application in combined electrochemical oxidation processes.</p>\u0000 </div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 7","pages":"2697 - 2710"},"PeriodicalIF":3.1,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10008-026-06578-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Co substitution on microstructure and electrochemical kinetics of La–Y–Ni superlattice alloys Co取代对La-Y-Ni超晶格合金显微组织和电化学动力学的影响
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-04-10 DOI: 10.1007/s10008-026-06576-2
Deng Anqiang, Tian Ye, Wang Yingjie, Li Longqiang, Mu Guofeng, Yan Xiaoyu,  Zhang Wei, Wang Hailong
{"title":"Effect of Co substitution on microstructure and electrochemical kinetics of La–Y–Ni superlattice alloys","authors":"Deng Anqiang,&nbsp;Tian Ye,&nbsp;Wang Yingjie,&nbsp;Li Longqiang,&nbsp;Mu Guofeng,&nbsp;Yan Xiaoyu,&nbsp; Zhang Wei,&nbsp;Wang Hailong","doi":"10.1007/s10008-026-06576-2","DOIUrl":"10.1007/s10008-026-06576-2","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, based on the previously optimized La–Y–Ni superlattice hydrogen-storage alloy matrix La₁₋<i>ₓ</i>Y<i>ₓ</i>Ni₃.₇₅Mn₀.₂Al₀.₁₅, a series of La₀.₄Y₀.₆Ni₃.₇₅₋<i>ₓ</i>Mn₀.₂Al₀.₁₅Co<i>ₓ</i>(<i>x</i> = 0,0.3,0.6,0.9) alloys was prepared by partially substituting Co for Ni at the B-site to investigate how B-site electronic structure and local volume regulation influence the stability of the superlattice structure and its electrochemical properties. Previous studies have shown that Co preferentially enters the AB<sub>5</sub> subunit, reducing the A<sub>2</sub>B<sub>4</sub>/AB<sub>5</sub> volume ratio from 1.0179(1.0185) to around 1.0159(1.01) at <i>x =</i> 0.9, thereby improving substructure volume matching. The electrochemical tests show that with the increase in Co content, the cycle stability continuously improves, showing a significant enhancement. The discharge capacity and high-rate performance generally exhibit a “low content retention, excessive decay” trend, with <i>x</i> = 0.3 performing the most balanced across several performance indicators. Electrochemical P–C–T measurements indicate that Co addition lowers the plateau pressure, but when <i>x</i> ≥ 0.6, the enhanced hydride phase stability leads to reduced reversible dehydrogenation capacity. Kinetic analysis demonstrates that increasing Co content slightly decreases the exchange current density <i>I</i><sub>0</sub>, continuously reduces the diffusion coefficient <i>D</i>, and increases both <i>R</i><sub>ct</sub> and diffusion impedance in EIS; the kinetics are dominated by charge-transfer control for <i>x</i> ≤ 0.3, whereas bulk diffusion becomes the limiting factor for <i>x ≥</i> 0.6. Post-cycling SEM observations show that moderate Co contents (<i>x =</i> 0.3,0.6) promote the formation of relatively uniform corrosion layers, helping alleviate pulverization and maintain electrode structural integrity, while high Co content (<i>x =</i> 0.9) further enhances surface corrosion resistance but produces a dense film that increases interfacial impedance and suppresses hydrogen diffusion. Overall, Co in this system exhibits coupled effects of “modulating substructure matching” and “altering kinetic behavior,” establishing a necessary balance between structural stability and kinetic performance, with <i>x</i> = 0.3 being the optimal doping level in terms of comprehensive properties.</p>\u0000 </div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 7","pages":"2677 - 2695"},"PeriodicalIF":3.1,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comprehensive review on the progress and evaluation of metal supported solid oxide fuel cells (MS-SOFC) 金属支撑固体氧化物燃料电池(MS-SOFC)研究进展及评价
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-04-05 DOI: 10.1007/s10008-026-06571-7
Sharanya Dattamandal, Didier Fasquelle
{"title":"A comprehensive review on the progress and evaluation of metal supported solid oxide fuel cells (MS-SOFC)","authors":"Sharanya Dattamandal,&nbsp;Didier Fasquelle","doi":"10.1007/s10008-026-06571-7","DOIUrl":"10.1007/s10008-026-06571-7","url":null,"abstract":"<div>\u0000 \u0000 <p>The exponentially increasing over utilization and global scarcity of fossil fuels have driven researchers to explore alternative energy resources for efficient power generation with minimal emission and cost-effectiveness. Among various types of fuel cells, solid oxide fuel cells (SOFCs) have been considered to be a commercially viable option for high power energy conversion across wide range of applications. Particularly, metal supported solid oxide fuel cells (MS-SOCs) offer various advantages compared to conventional ceramic SOFCs, including rapid start-up, enhanced mechanical stability over prolonged operation, low manufacturing cost, tolerance to thermal cycles and high electrochemical performance. Scientists have studied the development of various cell designs with various fabrication techniques and materials tailored to different components of the fuel cell structure. Despite of advance substantial research progress, several critical problems material degradation, interfacial instability, and performance loss, appear to hinder the development and operation of MS-SOFCs, affecting long term durability and commercial deployment of MS-SOFCs. This review article encapsulates the latest research and advancements in MS-SOFC technologies, including innovations in cell design, material development, and strategies to mitigate degradation mechanisms. Additionally, it also highlights current approaches aimed at enhancing the mechanical integrity and electrochemical performance of MS-SOFCs, offering insights into future research directions.</p>\u0000 </div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 7","pages":"2445 - 2472"},"PeriodicalIF":3.1,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10008-026-06571-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ameliorating the cycle stability of lithium-rich manganese-based cathodes via carbon coating for lithium-ion batteries 碳涂层改善锂离子电池富锂锰基阴极的循环稳定性
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-04-02 DOI: 10.1007/s10008-026-06574-4
Rui He, Haiyang Peng, Junnan Wu, Yinjie Liu, Qidong Liang, Bin Zhu, Xiaodan Li, Leiying Zeng, Shuxin Zhuang
{"title":"Ameliorating the cycle stability of lithium-rich manganese-based cathodes via carbon coating for lithium-ion batteries","authors":"Rui He,&nbsp;Haiyang Peng,&nbsp;Junnan Wu,&nbsp;Yinjie Liu,&nbsp;Qidong Liang,&nbsp;Bin Zhu,&nbsp;Xiaodan Li,&nbsp;Leiying Zeng,&nbsp;Shuxin Zhuang","doi":"10.1007/s10008-026-06574-4","DOIUrl":"10.1007/s10008-026-06574-4","url":null,"abstract":"<div>\u0000 \u0000 <p>Lithium-rich manganese-based oxide (LMR) has emerged as one of the most promising cathode material candidates for high-energy-density lithium-ion batteries owing to its exceptional theoretical capacity. Nevertheless, its poor cycling stability and discharge voltage decay severely impede its practical commercialization. Herein, an ascorbic acid-mediated modification strategy was proposed to enable the construction of a carbon coating on the LMR surface. Based on theoretical and experimental analyses, the carbon coating not only could effectively suppress undesirable interfacial side reactions but also enhance electron transport kinetics so as to ameliorate discharge voltage decay and cycling stability. The optimized LMR (LMR-0.5) exhibited a high specific capacity of 269.1 mAh/g at 0.1 C (1 C defined as 300 mA/g) along with the initial Coulombic efficiency of 83.02%. After modification, the rate performance was significantly elevated and the LMR-0.5 maintained an impressive capacity retention of 91.7% after 500 cycles at 0.1 C, outperforming 78% of the unmodified LMR. This study clarified the introduced oxygen vacancies and the carbon coating layer in improving the electrochemical performance, providing valuable insights for advancing their development toward practical application in high-energy-density lithium-ion batteries.</p>\u0000 </div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 7","pages":"2663 - 2675"},"PeriodicalIF":3.1,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Te doping stabilizes the P4332 structure and enhances the electrochemical performance of LiNi0.5Mn1.5O4 over 2.0–5.0 V 该掺杂稳定了P4332结构,提高了LiNi0.5Mn1.5O4在2.0 ~ 5.0 V电压下的电化学性能
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-03-31 DOI: 10.1007/s10008-026-06575-3
Yanan Zhang, Hanlin Li, Zhen Zhang, Chengkang Chang
{"title":"Te doping stabilizes the P4332 structure and enhances the electrochemical performance of LiNi0.5Mn1.5O4 over 2.0–5.0 V","authors":"Yanan Zhang,&nbsp;Hanlin Li,&nbsp;Zhen Zhang,&nbsp;Chengkang Chang","doi":"10.1007/s10008-026-06575-3","DOIUrl":"10.1007/s10008-026-06575-3","url":null,"abstract":"<p>Spinel LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> (LNMO) delivers a specific capacity above 140 mAh g<sup>−1</sup> within a wide voltage window of 2.0–5.0 V, owing to the additional Mn<sup>3</sup>⁺/Mn<sup>4</sup>⁺ redox activity at ~ 2.7 V. However, the induced cubic-to-tetragonal phase transition severely compromises its cycling stability. In this work, Te doping is employed to regulate the crystal structure of LNMO, leading to the formation of an ordered P4<sub>3</sub>32 spinel phase. Electrochemical analyses (CV and EIS) demonstrate that Te doping effectively lowers electrode polarization, enhances electronic conductivity, and reduces internal resistance, thereby improving the cycling performance. The Te-doped LNMO achieves an energy density of 846 Wh kg<sup>−1</sup> (active-material basis), together with a capacity retention of 80.2% at 1C and 152.7 mAh g<sup>−1</sup> after 100 cycles. The performance enhancement is primarily attributed to the suppression of the cubic-to-tetragonal phase transition enabled by the ordered structure. In addition, Te doping decreases the Li⁺ migration barrier from 0.337 to 0.289 eV, resulting in an improved rate capability of 163.3 mAh g<sup>−1</sup> at 2C. These results highlight the effectiveness of Te doping in stabilizing high-voltage LNMO spinel cathodes and demonstrate their promise for high-energy-density lithium-ion batteries.</p>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 7","pages":"2647 - 2661"},"PeriodicalIF":3.1,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable electrochemical detection of catechol using a CuO@Polyaniline Nanocomposite: optimization and analytical performance via Box–Behnken design 利用CuO@Polyaniline纳米复合材料持续电化学检测儿茶酚:Box-Behnken设计优化和分析性能
IF 3.1 4区 化学
Journal of Solid State Electrochemistry Pub Date : 2026-03-27 DOI: 10.1007/s10008-026-06569-1
Jassem Wannassi, Pedro A. Salazar-Carballo, Soledad Carinelli, Hamza Kahri, Fraj Echouchene, Houcine Barhoumi
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