IF 2.6 4区化学

Ionics Pub Date : 2025-05-09 DOI: 10.1007/s11581-025-06361-7

Jialian Chen, Zhipei Xu, Fumin Zou, Xinjian Cai

引用次数: 0

Robust anchoring of Si-Fe nanoalloys on graphite via continuous conductive matrix for superior lithium-ion storage performance 硅铁纳米合金通过连续导电基体在石墨上的稳定锚定，具有优异的锂离子存储性能

IF 2.6 4区化学

Ionics Pub Date : 2025-05-09 DOI: 10.1007/s11581-025-06369-z

Hongfu Tang, Zian Huang, Liuyang Zhao, Bo Wang, Zhiwen Qiu, Songru Wang, Hao Huang, Aimin Wu, Zhaohui Yang

{"title":"Robust anchoring of Si-Fe nanoalloys on graphite via continuous conductive matrix for superior lithium-ion storage performance","authors":"Hongfu Tang, Zian Huang, Liuyang Zhao, Bo Wang, Zhiwen Qiu, Songru Wang, Hao Huang, Aimin Wu, Zhaohui Yang","doi":"10.1007/s11581-025-06369-z","DOIUrl":"10.1007/s11581-025-06369-z","url":null,"abstract":"<div><p>Silicon/graphite (Si/G) composites are promising anode candidates for high-energy–density lithium-ion batteries (LIBs) due to their high theoretical capacity. However, challenges such as severe volume expansion (~ 300%) during cycling, low ionic conductivity, and weak interfacial contact between Si and graphite remain. Herein, we report a scalable synthesis of Si-Fe nanoparticles (SF NPs) via arc plasma evaporation, which are strongly anchored on graphite surfaces via liquid-phase assembly combined with phenolic resin carbonization. This configuration forms a continuous conductive network, enabling structural accommodation to volume changes and stress redistribution, thus maintaining electrical conductivity. Electrochemical evaluations revealed that SFG@HC with 20% phenolic resin additive (SFG@HC-20%) exhibits exceptional cycling stability and rate capability. After 500 cycles at 500 mA·g<sup>−1</sup>, it retained 82.4% capacity retention. Notably, a discharge capacity of 705.1 mAh·g<sup>−1</sup> was achieved at 100 mA·g<sup>−1</sup>, recovering to 701.9 mAh·g<sup>−1</sup> after high-rate cycling. The scalable synthesis strategy and outstanding performance establish a viable pathway for commercializing silicon-carbon composites in advanced LIBs.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"6839 - 6850"},"PeriodicalIF":2.6,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163997","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 review for high-value utilization of retired spent electrolyte for lithium-ion battery: how to reduce the waste of resources? 退役废电解液用于锂离子电池高价值利用研究进展：如何减少资源浪费？

IF 2.6 4区化学

Ionics Pub Date : 2025-05-09 DOI: 10.1007/s11581-025-06355-5

Jie Wang, Dong Hong, Dongni Zhao, Xiaoling Cui, Linhu Song, Junlong Zhu, Yinong Wang, Feifei Zong, Ningshuang Zhang, Shiyou Li

{"title":"A review for high-value utilization of retired spent electrolyte for lithium-ion battery: how to reduce the waste of resources?","authors":"Jie Wang, Dong Hong, Dongni Zhao, Xiaoling Cui, Linhu Song, Junlong Zhu, Yinong Wang, Feifei Zong, Ningshuang Zhang, Shiyou Li","doi":"10.1007/s11581-025-06355-5","DOIUrl":"10.1007/s11581-025-06355-5","url":null,"abstract":"<div><p>Establishing a complete recycling chain of decommissioned lithium-ion batteries (LIBs) electrolytes is crucial for promoting the sustainable development of the lithium battery industry and realizing a closed-loop ecology of products. However, the recycling process for cathode materials has not yet solved the problem of environmental pollution caused by organic electrolytes. With the increasing cost of electrolytes in LIBs year by year, the effective recovery and utilization of organic electrolytes is also becoming more and more important. Therefore, from the dual perspectives of efficient resource utilization and environmental protection, it is of great significance to realize the high-value utilization of electrolytes of retired LIBs. This article aims to review the current situation regarding the recovery of electrolytes from retired LIBs. Firstly, the composition and properties of electrolytes in LIBs and the potential environmental hazards are summarized to clarify the necessity for retired LIB recycling. After that, the recycling processes of electrolytes from retired LIBs are discussed in two parts: the research status of vacuum pyrolysis and extraction. The electrolytes in retired LIBs can be treated appropriately but without further utilization or high-value conversion. Based on the comprehensive analysis of the sustainable development of the industry and the need to achieve a closed-loop ecology of products, a high-value utilization direction for the spent electrolytes in retired LIBs is proposed and prospected.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"6635 - 6652"},"PeriodicalIF":2.6,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163578","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

Novel synthesis of ZnO supported on 1D-MWCNT nanocomposites enhancing electrochemical energy storage performance of asymmetric supercapacitor 一维mwcnt纳米复合材料负载ZnO的新合成提高了非对称超级电容器的电化学储能性能

IF 2.6 4区化学

Ionics Pub Date : 2025-05-08 DOI: 10.1007/s11581-025-06346-6

M. Sasikumar, S. Seenivasan, S. Durairaj, S. Sathiya

{"title":"Novel synthesis of ZnO supported on 1D-MWCNT nanocomposites enhancing electrochemical energy storage performance of asymmetric supercapacitor","authors":"M. Sasikumar, S. Seenivasan, S. Durairaj, S. Sathiya","doi":"10.1007/s11581-025-06346-6","DOIUrl":"10.1007/s11581-025-06346-6","url":null,"abstract":"<div><p>High-power flexible supercapacitor electrodes were created by mixing ZnO nanorods with MWCNTs. The inclusion of MWCNTs boosted the electrical conductivity of carbon nanotubes, whereas ZnO/MWCNTs decoration increased their energy storage capacity. The impact of the metal (ZnO/MWCNTs) ratio on the overall electrochemical performance of the supercapacitor was studied by varying the C concentration. ZnO increases the specific capacitance by providing Faradaic redox processes. ZnO/MWCNT nanotubes enhanced electrolyte transport into the electrode, hence boosting electrochemical activity. The nanotubes also boosted the charge transfer rate within the composite electrode, which improved its overall electrochemical performance. The designed asymmetric supercapacitor cell possesses Faradic properties and a specific capacity of 215.62 Fg<sup>−1</sup>, with 93.2% capacity retention after 3000 GCD cycles. Long-term cycle performance is maintained by the composite structure, which inhibits ZnO nanoparticle aggregation. Furthermore, the cell possesses a specific energy of 13.86 Wh kg<sup>−1</sup> and a high specific power of 5298 W kg<sup>−1</sup>. The extraordinary electrochemical performance of the ZnO/MWCNTs electrode demonstrates that it is an appropriate negative electrode material for asymmetric supercapacitors. These findings suggest that the ZnO/MWCNTs NC is a suitable material for supercapacitor applications.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"7299 - 7311"},"PeriodicalIF":2.6,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163632","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 multi-measurement exponential gain unscented Kalman filter-based state of charge estimation for lithium-ion batteries with temperature adaptability 基于多测量指数增益无气味卡尔曼滤波的温度自适应锂离子电池电荷状态估计

IF 2.6 4区化学

Ionics Pub Date : 2025-05-08 DOI: 10.1007/s11581-025-06350-w

Mamadou Fall, Chunmei Yu, Paul Takyi-Aninakwa, Shunli Wang, Tofik Seid Ali, Liya Zhang

{"title":"A multi-measurement exponential gain unscented Kalman filter-based state of charge estimation for lithium-ion batteries with temperature adaptability","authors":"Mamadou Fall, Chunmei Yu, Paul Takyi-Aninakwa, Shunli Wang, Tofik Seid Ali, Liya Zhang","doi":"10.1007/s11581-025-06350-w","DOIUrl":"10.1007/s11581-025-06350-w","url":null,"abstract":"<div><p>Reliable state-of-charge (SOC) estimation is vital for the safe and efficient operation of lithium-ion battery energy storage systems. However, accurately estimating the SOC poses significant challenges to various methods. In this work, a novel multi-measurement exponential gain unscented Kalman filter (MMEG-UKF) with temperature adaptability is proposed to achieve high-precision SOC estimation in lithium-ion batteries. In contrast to traditional methods, this advanced filter integrates multiple data sources, including current, voltage, and temperature, to provide a comprehensive view of battery charge. An innovative approach based on an MMEG factor dynamically adjusts the filter gain, enhancing estimation accuracy and stability even under rapidly changing conditions. Additionally, the temperature adaptability feature enables the filter to account for the complex impact of temperature variations on battery performance. Through comprehensive experimentation, the proposed method achieves error metrics consistently below 1.5%, underscoring its robustness and reliability across diverse operating conditions. These contributions lay a solid foundation for the efficient management of lithium-ion batteries in energy storage systems, setting a new framework in SOC estimation.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"6919 - 6933"},"PeriodicalIF":2.6,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163257","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

Review and perspectives on ruthenium-based cathode catalyst for water electrolysis 钌基电解水阴极催化剂的研究进展与展望

IF 2.6 4区化学

Ionics Pub Date : 2025-05-07 DOI: 10.1007/s11581-025-06329-7

Yuqian Gao, Haotian Tan, Yanjia Zhang, Wenxue Chen, Yujie Guo, Jinlin Wang, Peng Dong, Xiaoyuan Zeng

{"title":"Review and perspectives on ruthenium-based cathode catalyst for water electrolysis","authors":"Yuqian Gao, Haotian Tan, Yanjia Zhang, Wenxue Chen, Yujie Guo, Jinlin Wang, Peng Dong, Xiaoyuan Zeng","doi":"10.1007/s11581-025-06329-7","DOIUrl":"10.1007/s11581-025-06329-7","url":null,"abstract":"<div><p>In recent years, with the depletion of traditional energy sources and the increasing prominence of environmental issues, hydrogen as a new energy source has become a highly promising alternative that has attracted widespread concern due to its renewable, environmentally friendly, and clean characteristics. Consequently, the development of high-performance catalysts for electrochemical water splitting has emerged as a critical research frontier in advancing sustainable hydrogen production technologies. Normally, platinum (Pt) is widely regarded as the most effective catalyst for hydrogen generation through water electrolysis. However, its high cost, scarcity source, and unstable performance as a catalyst restrain its wide application. In contrast, ruthenium (Ru) has hydrogen bonding capabilities comparable to those of platinum-based materials but is significantly more cost-effective. Additionally, Ru-based materials exhibit excellent durability. Therefore, Ru is considered to be among the most promising catalysts for electrochemical water splitting to produce hydrogen. Here, we first give a brief overview of the reaction mechanism and catalyst evaluation criteria for hydrogen production from water electrolysis. Then, review the Ru-based catalysts with excellent performance that have been investigated recently. Finally, summarize the difficulties in the research of Ru-based catalysts and give an outlook on their future development.</p><h3>Graphical Abstract</h3><p>The development of HER catalysts with high performance and low cost is extremely important for the industrialization of for the industrialization of electrochemical water splitting. This section first introduces the fundamental principles of hydrogen evolution reaction (HER) and Ru-loaded materials supported on various carriers. Finally, the challenges and prospects of ruthenium-based catalysts are discussed.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"6583 - 6599"},"PeriodicalIF":2.6,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162929","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

Novel V2O5/polythiophene composite: An advanced cathode material for rechargeable aluminium batteries 新型V2O5/聚噻吩复合材料：一种先进的可充电铝电池正极材料

IF 2.6 4区化学

Ionics Pub Date : 2025-05-06 DOI: 10.1007/s11581-025-06360-8

J. Vatsala Rani, Venkata Narendra Kumar Y, Anjanalakshmi T. V, Sandeepa Mohan, Sake Rayamma

{"title":"Novel V2O5/polythiophene composite: An advanced cathode material for rechargeable aluminium batteries","authors":"J. Vatsala Rani, Venkata Narendra Kumar Y, Anjanalakshmi T. V, Sandeepa Mohan, Sake Rayamma","doi":"10.1007/s11581-025-06360-8","DOIUrl":"10.1007/s11581-025-06360-8","url":null,"abstract":"<div><p>This research introduces a simple method for creating a V<sub>2</sub>O<sub>5</sub>/polythiophene (PTh) composite through chemical oxidation, which was later utilized as the cathode material in rechargeable aluminium-ion batteries. The electrolyte used in this study consisted of a 1.5:1 AlCl<sub>3</sub>:[BMIm]Cl eutectic mixture, while aluminium acted as the anode. The composite's structural and microstructural properties were analyzed using field emission scanning electron microscopy (FESEM), and the energy storage mechanism was explored via X-ray photoelectron spectroscopy (XPS). The V<sub>2</sub>O<sub>5</sub>/PTh composite exhibited remarkable electrochemical characteristics, achieving a current density of 100 mA/g and a discharge capacity of 255 mAh/g. Furthermore, it successfully completed around 300 charge–discharge cycles while maintaining a high coulombic efficiency of 93%. This study elaborates on the synthesis of polythiophene and its integration into a V<sub>2</sub>O<sub>5</sub>/FeCl<sub>3</sub>/CHCl<sub>3</sub> reaction mixture, resulting in a uniform composite under optimized reaction conditions. The findings underscore the promising capabilities of the V<sub>2</sub>O<sub>5</sub>/PTh cathode in improving the performance of aluminium-ion batteries. The research not only demonstrates the effective synthesis of the composite but also highlights its potential applications in energy storage technologies, paving the way for advancements in battery performance and efficiency.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"7079 - 7092"},"PeriodicalIF":2.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162513","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

An improved transformer-GRU neural model optimized by polar light optimizer for SOC estimation of lithium-ion batteries under complex operating conditions 基于极性光优化器优化的改进变压器- gru神经模型用于复杂工况下锂离子电池荷电状态估计

IF 2.6 4区化学

Ionics Pub Date : 2025-05-06 DOI: 10.1007/s11581-025-06353-7

Xinyue Shu, Haotian Shi, Yuanru Zou, Wen Cao, Carlos Fernandez

{"title":"An improved transformer-GRU neural model optimized by polar light optimizer for SOC estimation of lithium-ion batteries under complex operating conditions","authors":"Xinyue Shu, Haotian Shi, Yuanru Zou, Wen Cao, Carlos Fernandez","doi":"10.1007/s11581-025-06353-7","DOIUrl":"10.1007/s11581-025-06353-7","url":null,"abstract":"<div><p>Estimating the battery’s state-of-charge (SOC) is essential for determining how safe electric cars are and their remaining range. An SOC estimation technique for lithium-ion batteries based on the Transformer architecture is presented in this paper. In order to effectively interpret the original data information, the variational mode decomposition (VMD) algorithm is applied to decompose the Panasonic datasets, enabling effective interpretation of the original data information by isolating intrinsic mode functions (IMFs) with distinct frequency characteristics. The decomposition state is then evaluated using the center-frequency method. After that, the Transformer is altered by giving the decoder more positional encoding. The problem of manually setting the network hyper-parameters in SOC estimation is finally resolved by optimizing the tuned Transformer neural network’s learning rate parameters, regularization coefficients, and the number of self-attention mechanism heads using the polar lights optimization algorithm. This optimization technique guarantees that the model can more successfully adjust to the varied data characteristics of particular application scenarios while maintaining Transformer-GRU’s benefits in terms of long-range dependency modeling and low computational cost. The accuracy, stability, and applicability of the method were verified through experimental comparison of various estimation methods, working conditions, and temperature conditions.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"6935 - 6948"},"PeriodicalIF":2.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162555","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

Study of the influence of different concentrations of Mg doping on the performance of LiNi0.9Mn0.1O2 cathode materials 研究不同浓度Mg掺杂对LiNi0.9Mn0.1O2正极材料性能的影响

IF 2.6 4区化学

Ionics Pub Date : 2025-05-06 DOI: 10.1007/s11581-025-06358-2

Hongxing Zong, Yanjiang Chen, Yan Yang, Guanghui Guo

{"title":"Study of the influence of different concentrations of Mg doping on the performance of LiNi0.9Mn0.1O2 cathode materials","authors":"Hongxing Zong, Yanjiang Chen, Yan Yang, Guanghui Guo","doi":"10.1007/s11581-025-06358-2","DOIUrl":"10.1007/s11581-025-06358-2","url":null,"abstract":"<div><p>In recent years, nickel-rich, cobalt-free LiNi<sub>0.9</sub>Mn<sub>0.1</sub>O<sub>2</sub> (LNMO) cathode materials have garnered significant attention in the field of lithium-ion batteries due to their advantages, including high specific capacity, high operating voltage, and low cost. However, challenges such as low Coulomb efficiency during the initial cycling process, poor cycling stability, and significant voltage decay have hindered their broader commercialization. In this study, we have successfully synthesized the LNMO cathode materials for rechargeable lithium-ion batteries by a combination of the high-temperature solid-phase method and co-precipitation technique. The incorporation of Mg was applied to further improve the electrochemical properties of the LNMO material. The influence of different concentrations of Mg doping on the electrochemical properties of the product was systematically investigated. The results showed the 1% Mg-LNMO sample exhibited the most superior electrochemical performance. Additionally, EIS analysis showed that the 1% Mg-LNMO sample had the lowest impedance, indicating that Mg doping enhanced particle stability.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"6731 - 6740"},"PeriodicalIF":2.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162401","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

Study of the electrochemical performance of highly Fe-doped SnO2 nanoparticles used as anode material for Li-ion batteries 高铁掺杂SnO2纳米颗粒锂离子电池负极材料的电化学性能研究

IF 2.6 4区化学

Ionics Pub Date : 2025-05-06 DOI: 10.1007/s11581-025-06356-4

Walid Ben Haj Othmen, Ramzi Nasser, Amirah S. Alahmari, Alexander T. Tesfaye, Thierry Djenizian, Maryam Alshahrani, Saad Melhi, Ji-Ming Song, Habib Elhouichet

{"title":"Study of the electrochemical performance of highly Fe-doped SnO2 nanoparticles used as anode material for Li-ion batteries","authors":"Walid Ben Haj Othmen, Ramzi Nasser, Amirah S. Alahmari, Alexander T. Tesfaye, Thierry Djenizian, Maryam Alshahrani, Saad Melhi, Ji-Ming Song, Habib Elhouichet","doi":"10.1007/s11581-025-06356-4","DOIUrl":"10.1007/s11581-025-06356-4","url":null,"abstract":"<div><p>Iron (Fe)-doped SnO<sub>2</sub> nanosized particles with various Fe amount were successfully elaborated to evaluate their performance as negative electrode for Li-ion battery. The XRD measurements reveal the rutile SnO<sub>2</sub> structure for all doping concentrations together with the purity of the obtained phase. The NPs size for different Fe amounts as well as the lattice parameters and lattice volume are affected by Fe doping. HRTEM images further prove the nanoscale size of the obtained Fe-doped SnO<sub>2</sub> particles. XPS measurements show the successful insertion of Fe as dopant in the SnO<sub>2</sub> lattice without the formation of iron oxide phases and suggest that oxygen vacancies density is well affected by iron doping. Cyclic voltammetry results reveal an obvious dependence of the electrochemical activity on iron amount. These measurements suggest that Fe doping reduces the structural and textural changes undergone by SnO<sub>2</sub> NPs during cycling. The galvanostatic charge/discharge curves shows that Fe doping improves the SnO<sub>2</sub> cycling capability. This result is also demonstrated through the cycling performance test showing also that the optimal Fe concentration is around 10% for which the capacity reaches 555 mAh/g with a good cycling stability. Along with its effect on the specific area and the lattice parameters that affects the Li<sup>+</sup> insertion/disinsertion rate, we suggested that the incorporation of Fe<sup>3+</sup> ions stimulate the lithiation reactions which may increase the electrochemical property of SnO<sub>2</sub> NPs. The measurements of the electrochemical impedance reveal that an optimal Fe amount for the electrochemical activity results from a competitiveness between the charge transfer resistance and the dielectric behavior of Fe-doped SnO<sub>2</sub> NPs.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 7","pages":"6753 - 6767"},"PeriodicalIF":2.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162512","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

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