Journal of Power Sources最新文献

{"title":"Facile synthesis of bimetallic Ag-Fe core-shell nanoparticles for the selective and efficient dehydrogenation of formic acid","authors":"Shoaib Akhtar ,&nbsp;Shakra Shafeeq ,&nbsp;Abu Bakar Siddique ,&nbsp;Fahad Y. Sabei ,&nbsp;Awaji Y. Safhi ,&nbsp;Sami Ullah ,&nbsp;Azhar Abbas ,&nbsp;Ali Hanbashi ,&nbsp;Hamad Alshahi ,&nbsp;Abdulmajeed M. Jali ,&nbsp;Farooq Kamli ,&nbsp;Abdullah Alsalhi ,&nbsp;Muhammad Imran Irfan ,&nbsp;Hatem M.A. Amin","doi":"10.1016/j.jpowsour.2025.236919","DOIUrl":"10.1016/j.jpowsour.2025.236919","url":null,"abstract":"<div><div>Hydrogen energy, being an earth-abundant, renewable, and environment-friendly energy source, has attracted a great deal of attention as a potential alternative to fossil fuels and other conventional, energy production procedures. However, the fabrication of highly selective, durable, and low-cost heterogeneous catalysts for hydrogen production from formic acid (FA) and other hydrogen storage materials remains a key challenge to utilize hydrogen-based energy effectively. Here, we report a facile one-pot fabrication of core@shell Ag-Fe bi-metallic nanoparticles stabilized by hydroxyethyl cellulose (HEC). As prepared catalyst was subjected to UV–Vis, FTIR, XRD, SEM, HR-TEM, EDX, BET, DLS, and ZP characterizations. The Ag₁₀-Fe₉₀-HEC exhibited remarkable efficiency and FA dehydrogenation was accomplished in 3.5 min with &gt;99 % selectivity and a TOF value of 3088.32 h⁻¹ at pH 3.5, FA/SF 1/3, and 343 K temperature was achieved. Moreover, the slightest decrease in activity after six successive catalytic cycles depicts its robust stability. This remarkable efficiency of the Ag₁₀-Fe₉₀-HEC catalyst was attributed to high surface area, strong synergistic effects produced from the combination of two metals, and electron transfer between two metals incorporated in the catalyst. The present catalytic system provides an efficient method for fabricating a highly selective low-cost heterogenous catalyst for CO-free hydrogen release from FA.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236919"},"PeriodicalIF":8.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808180","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}

{"title":"A rechargeable aqueous dendrite-free zinc ion battery with robust performance enabled by the design of electrolyte additive","authors":"Yonghui Guo,&nbsp;Yaya Jia,&nbsp;Shuang Wang,&nbsp;Ling Wang,&nbsp;Shan Liu","doi":"10.1016/j.jpowsour.2025.236981","DOIUrl":"10.1016/j.jpowsour.2025.236981","url":null,"abstract":"<div><div>Aqueous zinc ion batteries (AZIBs) have attained significant progress in the field owing to their outstanding safety, low cost, and high theoretical capacity. However, several issues, such as dendrite formation and hydrogen evolution reactions, limit the practical application of AZIBs. In this regard, the aforementioned problem of AZIBs is addressed by combining traditional electrolytes with environmentally friendly, non-toxic, and low-cost electrolyte additives. In this work, sodium sulfate and sodium citrate were selected as electrolyte additives for the optimization of AZIBs. It was demonstrated that sodium ions can alter the deposition morphology of Zn²⁺ to prevent dendrite formation, thereby stabilizing the Zn anode. Consequently, the symmetrical cell can cycle stably for 1400 h at a current density of 5 mA cm⁻² and 400 h at 20 mA cm⁻², respectively. This work presents a simple and cost-effective approach to achieve high-performance AZIBs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236981"},"PeriodicalIF":8.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807579","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}

{"title":"Poisoning and recovery behavior of Ni-GDC based electrolyte-supported solid oxide fuel cell exposed to common sulfur compounds under processed biogas environment","authors":"Hangyu Yu ,&nbsp;Cédric Frantz ,&nbsp;Louis Savioz ,&nbsp;Philippe Aubin ,&nbsp;Dante Fronterotta ,&nbsp;Christian Geipel ,&nbsp;Hamza Moussaoui ,&nbsp;Guillaume Jeanmonod ,&nbsp;Ligang Wang ,&nbsp;Jan Van herle","doi":"10.1016/j.jpowsour.2025.236901","DOIUrl":"10.1016/j.jpowsour.2025.236901","url":null,"abstract":"<div><div>In recent years, biogas-fed solid oxide fuel cell (SOFC) technology based on Ni-GDC electrolyte-supported cell has attracted interests due to its high sulfur tolerance. However, the degradation and recovery behavior of the cells under exposure to common sulfur compounds remains to be clearly understood especially with electrochemical impedance spectroscopy (EIS). This paper investigates the degradation and recovery behavior of Ni-GDC electrolyte-supported SOFCs under sulfur poisoning via EIS. Two common sulfur compounds in biogas, dimethyl sulfide and H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>S, were tested under three gas compositions: dry H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>, cold recirculation gas (CO-rich, low H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O), and hot recirculation gas (CO- and H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O-rich). H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>S induced greater voltage degradation (35%–45% irreversible) than dimethyl sulfide, which showed complete recovery. Hot recirculation gas led to higher continuous degradation, suggesting that the water-gas shift reaction mitigates long-term poisoning. Lower H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>S concentrations caused cumulative irreversible degradation, reducing severity in subsequent higher concentration tests. EIS analysis showed that gas conversion and O<span><math><msup><mrow></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msup></math></span> surface exchange processes were the main contributors to resistance increase, with the latter suffering a 200% rise. This study enhances the understanding of sulfur poisoning effects and EIS behavior in biogas-fed SOFCs, aiding operando operation diagnostics.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236901"},"PeriodicalIF":8.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808179","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}

{"title":"Powering sustainability: High-performance supercapacitors using reduced graphene oxide from waste tires embedded with molybdenum disulfide","authors":"Diksha Bhatt ,&nbsp;Thangavelu Kokulnathan ,&nbsp;Tzyy-Jiann Wang ,&nbsp;Mohamed A. Ghanem ,&nbsp;Nanda Gopal Sahoo","doi":"10.1016/j.jpowsour.2025.236932","DOIUrl":"10.1016/j.jpowsour.2025.236932","url":null,"abstract":"<div><div>This research proposes an innovative approach to supercapacitor development by leveraging materials derived from waste tires to effectively address both energy storage requirements and environmental sustainability challenges. Specifically in this work, we utilized two-dimensional (2D) reduced graphene oxide synthesized from waste tires (WT–rGO) through a two-step catalytic pyrolysis process, combined with hydrothermally synthesized molybdenum disulfide (MoS₂). The synthesized materials were thoroughly characterized using various analytical techniques to confirm their structural and chemical properties. The optimized WT–rGO@MoS₂ modified electrode demonstrates a specific capacitance of 576.4 F g⁻¹ at 0.5 A g⁻¹ and a low internal resistance of 0.65 Ω, which outperform other tested electrodes. The integration of these components is designed to leverage their combined advantages, including numerous catalytically active sites, high electrical conductivity, and high specific surface area. The symmetric device delivers an energy density of 30.36 Wh Kg⁻¹ at 253.23 W kg⁻¹ power density with excellent cyclic stability, which retains 92.6 % of original capacitance and achieves the coulombic efficiency of 113 % after 5000 cycles. Additionally, two series-connected devices power a light emitting diode (LED) to glow for up to 80 min. This study highlights the potential of repurposing waste materials for advanced, sustainable energy storage solutions.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236932"},"PeriodicalIF":8.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808181","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}

{"title":"Unveiling promotion effects of Ce doping in La0.6Ca0.4Co0.2Fe0.8O3-δ as an efficient cathode for solid oxide fuel cells","authors":"Shuai He ,&nbsp;Zhishan Li ,&nbsp;Xiaowei Hu ,&nbsp;Qingxun Li ,&nbsp;Xiwen Song ,&nbsp;Yue Wang ,&nbsp;Xuerui Zhang ,&nbsp;Haijun Zhong ,&nbsp;Yunfeng Tian ,&nbsp;San Ping Jiang","doi":"10.1016/j.jpowsour.2025.236977","DOIUrl":"10.1016/j.jpowsour.2025.236977","url":null,"abstract":"<div><div>Perovskite La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ (LSCF) is to date the most intensively studied high-performance cathode material for solid oxide fuel cells (SOFCs), but strontium segregation at elevated temperatures critically impairs the activity and longevity of LSCF cathode. By substituting Sr with Ca, i.e. La_0.6Ca_0.4Co_0.2Fe_0.8O_3-δ (LCCF), the stability of the perovskite can be reinforced, however, at the cost of reduced catalytic activity. Herein, we adopt an effective A-site Ce doping strategy to modify the structure and chemistry of LCCF and therefore to boost its electrochemical performance, i.e. La_0.6Ca_0.4-xCe_xCo_0.2Fe_0.8O_3-δ (Ce-LCCF<em>x</em>, x = 0.05–0.2). The results reveal that replacing Ca²⁺ with Ce⁴⁺ notably alters the oxygen vacancies concentration, Fe⁴⁺/Fe³⁺ and Co⁴⁺/Co³⁺ proportions in the perovskite. As a result, the thermal expansion coefficient of LCCF is drastically lowered to 12.6 × 10⁻⁶ K⁻¹ upon x = 0.15 in Ce-LCCF<em>x</em>. Moreover, the single cell loaded with Ce-LCCF15 cathode demonstrates a superior maximum power density of 1.26 W cm⁻² at 750 °C in H₂. Interestingly, microstructure analysis suggests that abundant CeO_<em>x</em> nanoparticles are exsolved <em>in situ</em> from the Ce-LCCF15 surfaces due to cathodic current polarization. The present study contributes to the understanding of the role of dopants in promoting the catalytic properties of cathode materials for SOFCs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236977"},"PeriodicalIF":8.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808178","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}

{"title":"Synergistic enhancement of solar to hydrogen via Al2O3 and CoPi functional groups on hematite surfaces: experimental and theoretical assessment","authors":"Li Fu ,&nbsp;Xiaoying Shang ,&nbsp;Jiexin Wu ,&nbsp;Zhiwei Li","doi":"10.1016/j.jpowsour.2025.236964","DOIUrl":"10.1016/j.jpowsour.2025.236964","url":null,"abstract":"<div><div>Hematite (Fe₂O₃), as a promising photoanode, its photoelectrochemical (PEC) activity is limited by the recombination state at the sluggish surface and slow OER kinetics during the solar to hydrogen process. Herein, a 3D nano-tree-like morphology for Fe₂O₃ by the NaBH₄-treated, Al₂O₃ composites and CoPi functional groups (Fe₂O₃-H/A/CoPi) is synthesized. Oxygen-containing composites and CoPi functional groups enhance the PEC performance of activated Fe₂O₃ with an increased photocurrent density of 1.14 mA cm⁻² (4.4 folds than that of Fe₂O₃), enhanced applied bias photo-to-current efficiency of 0.17 %. Al₂O₃ composites efficiently accelerate the charge separation by the elimination of surficial trapping states of Fe₂O₃ during the PEC water splitting. The in-situ electrochemical characterizations and theoretical calculation reveal that CoPi could significantly reduce the initial absorption energy of OH∗ and the free energy of the potential-determining step (O∗→OOH∗) in the oxygen evolution reaction (OER) by the valence changing effect of Co. Thus, the surficial charge injection efficiency and the dynamic of the OER is greatly promoted by the CoPi modification enhances. Al₂O₃ composites and CoPi functional groups synergistically constructed a “bridge” for charge transfer promotion with activated Fe₂O₃. That is significant for the understanding and design of highly efficient materials during PEC water splitting.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236964"},"PeriodicalIF":8.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800431","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}

{"title":"Enhancing the trifunctional electrocatalytic activity of Fe-Co-Ni multi-component alloys using a zinc dealloying strategy","authors":"Heng Xu ,&nbsp;Siyuan Li ,&nbsp;Kai Chang ,&nbsp;Jiasheng Huang ,&nbsp;Qin Wang ,&nbsp;Chunfei Zhang ,&nbsp;He Miao ,&nbsp;Jinliang Yuan","doi":"10.1016/j.jpowsour.2025.236956","DOIUrl":"10.1016/j.jpowsour.2025.236956","url":null,"abstract":"<div><div>The frequently-used Al dealloying technology is difficult to apply in the alloy electrodes prepared by the electrodeposition method. To address this issue, Zn with the excellent electrodeposition performances in aqueous solution is innovatively employed as a dealloying element in this work. Firstly, a simple electrodeposition method is used to synthesize a multi-component alloy containing Fe, Co, Ni, Cr, Mo, and Zn (NF-FCNCMZ_0.05). The Zn is subsequently removed through dealloying in an alkaline solution, resulting in a multi-component alloy (NF-FCNCMZ_0.05-D). NF-FCNCMZ_0.05-D demonstrates the excellent trifunctional electrocatalytic activity, achieving the potentials of 1.50, 0.083, and 1.34 V vs. RHE at a current density of 100 mA cm⁻² for oxygen evolution (OER), hydrogen evolution (HER), and methanol oxidation reaction (MOR), respectively. Furthermore, the electrolyzers using NF-FCNCMZ_0.05-D as both cathode and anode for alkaline water and seawater splitting exhibit the low voltages. Replacing OER with MOR further reduces the water splitting voltage to 1.51 V at 100 mA cm⁻², enabling the high selectivity (98.7 %) of formate production. This work provides a new strategy for enhancing the electrocatalytic performances of multi-component alloys prepared by electrodeposition.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236956"},"PeriodicalIF":8.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792640","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}

{"title":"Engineering self-adaptive composite binders for micron-sized SiOx in lithium-ion battery anodes","authors":"Ruolan Li ,&nbsp;Zhihao Yang ,&nbsp;Yunfeng Liu ,&nbsp;Jiaxing Liu ,&nbsp;Suyue Chen ,&nbsp;Tieqi Huang ,&nbsp;Feiyue Tu ,&nbsp;Hongtao Liu","doi":"10.1016/j.jpowsour.2025.236961","DOIUrl":"10.1016/j.jpowsour.2025.236961","url":null,"abstract":"<div><div>High-capacity silicon-based anodes in lithium-ion batteries face significant challenges due to substantial volume changes and low initial Coulombic efficiency, which hinder their commercialization. While optimizing the intrinsic properties of the active material is essential, the binder plays a crucial role in enhancing the cycling stability and Coulombic efficiency of silicon-based anodes. In this study, we present a novel three-dimensional network composite binder developed through a soft-hard combination strategy. This binder features the natural elastic supramolecule guar gum (GG), rich in hydroxyl groups, which is crosslinked to a linear rigid polymer polyacrylic acid (PAA) backbone via hydrogen bonding. Leveraging its exceptional self-adaptive capability, the GG-PAA composite binder significantly improves the efficiency and durability of the anode composed of commercial micron-sized SiO_x, achieving an initial Coulombic efficiency of 75.09 % and retaining a capacity of 882.2 mAh g⁻¹ after 150 cycles at 1.0 A g⁻¹. This work offers a viable strategy for designing self-adapting binders for silicon-based anode applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236961"},"PeriodicalIF":8.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792638","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}

{"title":"Tetra-heteroatom natural-doped activated carbon derived from cocoa leaf waste for advanced symmetric supercapacitors","authors":"Bidayatul Armynah ,&nbsp;Suci Indah Sari ,&nbsp;Agustino Agustino ,&nbsp;Erman Taer ,&nbsp;Dahlang Tahir","doi":"10.1016/j.jpowsour.2025.236947","DOIUrl":"10.1016/j.jpowsour.2025.236947","url":null,"abstract":"<div><div>The high-value utilization and sustainable development of biomass-based energy provided a feasible route to solve the energy shortage and environmental problems. Here, a facile and efficient technique to obtain activated carbon was innovatively developed in this work using a one-step physicochemical activation method combined with the tetra-heteroatom natural-doped strategy from cocoa leaf waste. The obtained activated carbon materials (CLAC₈₅₀) have a high Brunauer-Emmet-Teller surface area (<em>S</em>_BET) of 379 m² g⁻¹ with a maximum specific capacitance (<em>C</em>_s) of 202 F g⁻¹ at 1 A g⁻¹ and a significant number of heteroatoms (O: 26.42 at.%, Mg: 1.36 at.%, Si: 5.65 at.%, and Ca: 1.95 at.%). The device also delivers a high specific energy of 28.7 Wh kg⁻¹ at 535.3 W kg⁻¹. Overall, this work demonstrated that the natural heteroatom-doped strategy was beneficial for growth of heteroatom functional groups, which provide a combination of EDLC and pseudocapacitance behavior. The findings indicate a new facile and efficient route for synthesizing activated carbon with natural heteroatom-doped for symmetric and asymmetric supercapacitor applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236947"},"PeriodicalIF":8.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792641","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}

{"title":"Polyaniline intercalated lithiation‐assisted exfoliation of MoS2 cathode enables ultra-high rate and durable rechargeable magnesium ion batteries","authors":"Chulong Pan ,&nbsp;Miao Cheng ,&nbsp;Ruirui Wang ,&nbsp;Qianqian Liu ,&nbsp;Jing Hu ,&nbsp;Tao Wei ,&nbsp;Muzi Chen ,&nbsp;Bo Liu ,&nbsp;Wanfei Li","doi":"10.1016/j.jpowsour.2025.236998","DOIUrl":"10.1016/j.jpowsour.2025.236998","url":null,"abstract":"<div><div>The commercialization of rechargeable magnesium ion batteries (MIBs) faces a critical challenge in exploiting high-performance cathodes, owing to the sluggish kinetics resulting from the robust Coulombic interaction between doubly charged Mg²⁺ ions and the intercalation host. Herein, a polyaniline (PANI) intercalated lithiation‐assisted exfoliation of MoS₂ (Li_x-MoS₂@PANI) cathode is developed through an initial chemical lithiation and delamination of commercial MoS₂ with n-butyllithium, followed by in-situ growth of PANI into the MoS₂ interlayers. Notably, the obtained Li_x-MoS₂@PANI displays a graphene-like nanosheet morphology with the interlayer spacing expanded to around 0.74–1.09 nm. The down-sizing of the exfoliated MoS₂ and expanded interlayer spacing could efficiently shorten ion diffusion distance and improve Mg²⁺ diffusion kinetics by weakening the strong Mg²⁺-host interactions. Moreover, the intercalated PANI is expected to enhance the conductivity and accommodate the volume changes upon prolonged cycling. The synergistic effects of the above boost the electrochemical performance of Li_x-MoS₂@PANI cathode, achieving high specific capacity, excellent rate capability even at an ultra-high rate of 15.0C and unprecedented long-term cycling stability with a reversible capacity of 140.5 mAh g⁻¹ at 15.0C up to 2800 cycles. This work offers an efficient and universal modification strategy to rational design high-performance intercalation-type cathodes for MIBs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"642 ","pages":"Article 236998"},"PeriodicalIF":8.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792639","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}