Journal of Power Sources最新文献_第10页

Steam and polarization effects on Ni-YSZ electrode due to degradation under electrolysis and fuel cell operation

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236296

Aiswarya Krishnakumar Padinjarethil , Fiammetta Rita Bianchi , Anke Hagen , Barbara Bosio

{"title":"Steam and polarization effects on Ni-YSZ electrode due to degradation under electrolysis and fuel cell operation","authors":"Aiswarya Krishnakumar Padinjarethil , Fiammetta Rita Bianchi , Anke Hagen , Barbara Bosio","doi":"10.1016/j.jpowsour.2025.236296","DOIUrl":"10.1016/j.jpowsour.2025.236296","url":null,"abstract":"<div><div>Degradation issues correlated to microstructural changes are the main obstacles to solid oxide fuel cell and electrolyser applications, making their identification and understanding fundamental steps. Coupling experimental activities with modelling, this work analyses the state-of-the-art Ni-YSZ (Yttria-Stabilized Zirconia)/YSZ/CGO (Cerium Gadolinium Oxide)/LSCF (Lanthanum Strontium Cobalt Ferrite)-CGO-based cell after 1000 h of galvanostatic electrolysis operation at fixed temperature and high steam composition in the inlet gas. Following a multiscale approach, the system behaviour is characterized through electrochemical impedance spectra and polarization curves as well as studying microstructure evolution, with a focus on Ni-cermet functional layer in view of Ni instability detected as the main degradation cause. A comparison with a cell consisting of the same initial geometrical structure and materials but aged in fuel cell mode allows to highlight the influence of operating mode and parameters on Ni-YSZ microstructure. Ni particle size and phase fraction variations experimentally observed on the electrode surface are correlated to water content and applied polarization simulated local values. Ni uneven distribution at the electrolyte interface and particle coarsening, above all, lead to an increase in polarization loss under electrolysis and fuel cell mode, respectively, since both penalise the charge transfer reaction and migration.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"632 ","pages":"Article 236296"},"PeriodicalIF":8.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Redox molecule modified graphene hydrogel with structure controllable for high-performance aqueous zinc-ion hybrid capacitors via utilizing hydrothermal fluid behavior

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236347

Yucan Zhu , Long Peng , Yingying Peng , Pingyong Hu , Junlin Huang , Gangyong Li , Hong Yin , Liang Chen , Zhaohui Hou

{"title":"Redox molecule modified graphene hydrogel with structure controllable for high-performance aqueous zinc-ion hybrid capacitors via utilizing hydrothermal fluid behavior","authors":"Yucan Zhu , Long Peng , Yingying Peng , Pingyong Hu , Junlin Huang , Gangyong Li , Hong Yin , Liang Chen , Zhaohui Hou","doi":"10.1016/j.jpowsour.2025.236347","DOIUrl":"10.1016/j.jpowsour.2025.236347","url":null,"abstract":"<div><div>Redox Molecule modified graphene-based materials exhibit excellent electrochemical performance due to the synergistic effect of pseudocapacitance and double layer energy storage mechanism in aqueous zinc-ion hybrid capacitors (AZIHCs). Herein, the 2, 6-Diaminoanthraquinone (DQ) modified flexible graphene hydrogel materials (DQ-FGH) with controllable structure are prepared via utilizing hydrothermal fluid behavior. Specifically, the temperature difference inside the DQ@GO suspension can cause convection in hydrothermal processes. The convection form of the suspension is regulated by controlling the volume of the suspension. Thus the DQ@GQ nanosheets can be reduced and assembled into the DQ-FGH films with different structures during convection. The prepared films show an excellent specific capacitance of 317.25 F g<sup>−1</sup> (@0.2 A g<sup>−1</sup>) and a promising rate performance, which exceeds unmodified graphene-based material by 35.7 %. When the mass loading is closed to commercial level, the areal capacitance of the DQ-FGH films can reach 1850 mF cm<sup>−2</sup>. Moreover, the flexible AZIHCs based on the DQ-FGH films also possess good mechanical stability and electrochemical performance, proving good application prospects.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"632 ","pages":"Article 236347"},"PeriodicalIF":8.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169740","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

Effects of short circuit applications on PEM fuel cell performance and degradation

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236348

Fabien Harel , Frederic Gustin , Julia Mainka , Peizhe Wu

引用次数: 0

Simultaneous achievement of high efficiency and brightness at low bias in red InP/ZnSe/ZnSeS/ZnS quantum dot light-emitting diodes

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236355

Ruixue Hou , Ranran Hu , Xiangtong Zhang, Hang Xiao, Fan Shi, Binbin Hu, Huaibin Shen

{"title":"Simultaneous achievement of high efficiency and brightness at low bias in red InP/ZnSe/ZnSeS/ZnS quantum dot light-emitting diodes","authors":"Ruixue Hou , Ranran Hu , Xiangtong Zhang, Hang Xiao, Fan Shi, Binbin Hu, Huaibin Shen","doi":"10.1016/j.jpowsour.2025.236355","DOIUrl":"10.1016/j.jpowsour.2025.236355","url":null,"abstract":"<div><div>As an exceptional class of Cd/Pb-free energy-efficient devices, the InP-based quantum dots light-emitting diodes (QLEDs), show promising prospects in display and lighting. However, their red QLEDs achieve high external quantum efficiency (EQE) over 20 % at low luminance. In this study, we develop a water-controlled Mg<sup>2+</sup> doped ZnO nanocrystals (ZMO NCs) synthetic route to effectively control the surface oxygen vacancies, which related to the conductivity of ZMO electron transfer layer (ETL). Additionally, both ZnSe and ZnSe<sub>0.75</sub>S<sub>0.25</sub> shells are introduced to alleviate lattice stress between the InP core and ZnS shell while enhancing photostability. Ultimately, we achieved a peak EQE of 20.9 %, accompanied by a luminance of 2905.4 cd/m<sup>2</sup> at 3.4 V and a highly efficient luminance (EFL) of 60,722.9. The T<sub>50</sub> operational lifetime is calculated to be 274,998 h (equivalent to around 31 years) at an initial luminance level of 100 cd/m<sup>2</sup> by applying an acceleration factor of 1.8. The simultaneously high luminance and high EQE at a low drive voltage may efficiently reduce the power consumption.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"632 ","pages":"Article 236355"},"PeriodicalIF":8.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169727","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

Lamellar lyotropic liquid crystals enabled beyond-liquid electrolytes for advanced Zn-ion batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236294

Kefei Wang , Hao Ruan , Qiannan Yu , Qiang Zhao , Yong Wu , Caihong Wang , Shuai Tan

{"title":"Lamellar lyotropic liquid crystals enabled beyond-liquid electrolytes for advanced Zn-ion batteries","authors":"Kefei Wang , Hao Ruan , Qiannan Yu , Qiang Zhao , Yong Wu , Caihong Wang , Shuai Tan","doi":"10.1016/j.jpowsour.2025.236294","DOIUrl":"10.1016/j.jpowsour.2025.236294","url":null,"abstract":"<div><div>Developing solid-state aqueous electrolytes combining liquid-like conducting performance, wide voltage windows, and anti-dendrite growth are satisfactory for efficient and durable Zn-ion batteries (ZIBs). Herein lamellar lyotropic liquid crystals (LLCs) are designed and prepared as solid-state electrolytes with comprehensive performance overwhelming to corresponding aqueous liquid electrolytes for ZIBs. The lamellar LLCs are simply prepared by nano-segregation of amphiphilic sodium dodecyl sulfate (SDS) in 2 M ZnSO<sub>4</sub> aqueous solutions. SDS shows good compatibility in forming lamellar LLCs even with a high content of 500 wt% ZnSO<sub>4</sub> solutions. The lamellar assembly constructs broadened liquid conducting pathways for efficient Zn-ion transport, which boosts ion conductivity of the lamellar electrolytes surpassing corresponding ZnSO<sub>4</sub> solutions. Also, the lamellar nanostructures of LLC electrolytes enable higher voltage windows (2.5 V) and anti-dendrite growth performance. The lamellar electrolytes show superior energy conversion efficiency and durability comparing to the ZnSO<sub>4</sub> solution electrolytes in Zn/V<sub>2</sub>O<sub>5</sub> based ZIBs, and possess robust viscoelasticity and interfacial contact for flexible ZIB applications to rival commonly-applied hydrogel electrolytes. The work here demonstrates a new branch for developing aqueous solid-state electrolytes with beyond-liquid performance to supersede traditional liquid electrolytes for efficient and durable ZIBs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"632 ","pages":"Article 236294"},"PeriodicalIF":8.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168469","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

Effect of immersion cooling parameters on thermal and electrochemical response of a Li-ion cell

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236285

Piyush Mani Tripathi, Amy M. Marconnet

{"title":"Effect of immersion cooling parameters on thermal and electrochemical response of a Li-ion cell","authors":"Piyush Mani Tripathi, Amy M. Marconnet","doi":"10.1016/j.jpowsour.2025.236285","DOIUrl":"10.1016/j.jpowsour.2025.236285","url":null,"abstract":"<div><div>Forced immersion cooling, where a dielectric fluid flows in contact with the cells, is an effective cooling approach for lithium-ion batteries. While previous models demonstrated effectiveness, they generally focused on thermal-fluid aspects and often neglected the coupling between temperature, cell potential, and heat generation (in other words, the electrochemistry remained unaffected by cooling conditions). Here, we use a fully coupled modeling approach that solves the detailed electrochemical model (with temperature-dependent properties) in conjunction with the thermal-fluid transport models at each time step. For an 18650 cell, we compare forced immersion cooling (water and mineral oil) to forced air cooling. Improved temperature control with immersion cooling leads to higher heat generation with increased capacity loss: a 3 K temperature rise corresponds to 10% loss, whereas 42 K temperature rise results in 0.4% loss at 5C discharge. Neglecting two-way coupling prohibits accurate analysis of the effectiveness of immersion cooling. Furthermore, the thermal conductivity and heat capacity of the fluid most significantly impact the electrochemical and thermal response. Finally, we define a new metric to compare performance with different flow parameters without computationally-expensive numerical simulations. Overall, this study provides insights that will be useful in understanding and design of immersion-cooled battery systems.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"632 ","pages":"Article 236285"},"PeriodicalIF":8.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168611","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

Low temperature plasma exposed activated peanut shell carbon with Al -doped CdO air cathode is employed in Al -air batteries and supercapacitors

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236358

N. Karthikeyan, K.A. Vijayalakhmi

{"title":"Low temperature plasma exposed activated peanut shell carbon with Al -doped CdO air cathode is employed in Al -air batteries and supercapacitors","authors":"N. Karthikeyan, K.A. Vijayalakhmi","doi":"10.1016/j.jpowsour.2025.236358","DOIUrl":"10.1016/j.jpowsour.2025.236358","url":null,"abstract":"<div><div>The primary goal of attaining energy and ecological balance is to develop energy storage devices, such as aluminum-air batteries and supercapacitors, which use electrodes manufactured from activated carbon biochar generated from waste biomass. In this work, aluminum-doped cadmium oxide is mixed with activated carbon, produced from peanut shell bio-waste and plasma-treated to create a composite material. The structural and electrochemical properties of Activated Peanut Shell Carbon @ Aluminum-doped Cadmium Oxide composites, both untreated and treated with direct current glow discharge plasma, are thoroughly investigated. The outcomes show that the composites treated with plasma exhibit notable benefits, such as improved stability, increased surface area, and enhanced efficiency in oxygen evolution and reduction processes in metal-air batteries, along with a specific capacitance of 1320 F/g. A high-performance aluminum-air battery is fabricated using a plasma-treated Activated Peanut Shell Carbon @ Aluminum-doped Cadmium Oxide air cathode. The battery exhibits a discharge capacity of 95.54 C/m<sup>2</sup>, an energy density of 787.06 kJ/g, and a power density of 1.78 W/m<sup>2</sup>. With an open circuit voltage of 1.12 V, the battery powers a light-emitting diode for two days and retains functionality for up to 18 days, demonstrating its potential for practical energy storage applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"632 ","pages":"Article 236358"},"PeriodicalIF":8.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168202","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

Construction of hierarchical S,C-(Cu-PBA/CuS) for enhanced rechargeable aqueous alkaline Cu-Zn batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236400

Xingyan Zhang , You Liu , Dag Noréus

引用次数: 0

Improving sulfamethoxazole degradation and power generation in bio-electro-Fenton systems using a bimetallic-insect exuviae melanin composite cathode

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236375

Chi-Wen Lin , Ting-Hung Wang , Shu-Hui Liu , Wei-Tzu Huang

{"title":"Improving sulfamethoxazole degradation and power generation in bio-electro-Fenton systems using a bimetallic-insect exuviae melanin composite cathode","authors":"Chi-Wen Lin , Ting-Hung Wang , Shu-Hui Liu , Wei-Tzu Huang","doi":"10.1016/j.jpowsour.2025.236375","DOIUrl":"10.1016/j.jpowsour.2025.236375","url":null,"abstract":"<div><div>The bio-electro-Fenton (BEF) process, powered by microbial fuel cells, can oxidize refractory organic pollutants. However, the poor electrochemical performance of BEF limits its H<sub>2</sub>O<sub>2</sub> <em>in-situ</em> generation capability. This study addresses these limitations by improving the BEF system's power generation and degradation capabilities by introducing a modified cathode incorporating a Fe–Cu bimetallic and melanin (Me) composite. The BEF system equipped with the Fe–Cu–Me composite cathode achieves a 99.75 % removal efficiency of 10 mg/L of sulfamethoxazole (SMX) in 5 h and demonstrates the highest cumulative H<sub>2</sub>O<sub>2</sub> generation (201.63 mg/L), which is 5.38 times higher than that of the unmodified carbon fiber system. The biotoxicity of the water treated by the Fe–Cu–Me cathode system shows a light inhibition percentage of only approximately 1 %, indicating an excellent degradation ability. Applying the Fe–Cu–Me composite alters the microbial composition in the anode tank and promotes the growth of electrochemically active and pollutant-degrading bacteria. Integrating Fe–Cu bimetallic and Me in the composite cathode significantly improves the electrochemical performance and pollutant degradation efficiency of the BEF system, providing a highly efficient approach for electrochemical treatment.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"632 ","pages":"Article 236375"},"PeriodicalIF":8.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168535","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

Fe-Co heterostructured FeTe2/CoTe2 anode: Enhanced ion transport and cycling stability with volume expansion control

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-01-31 DOI: 10.1016/j.jpowsour.2025.236361

Zihao Li , Can Wan , Xijia Yang , Yue Yang , Xuesong Li , Yang Gao , Liying Wang , Wei Lü

{"title":"Fe-Co heterostructured FeTe2/CoTe2 anode: Enhanced ion transport and cycling stability with volume expansion control","authors":"Zihao Li , Can Wan , Xijia Yang , Yue Yang , Xuesong Li , Yang Gao , Liying Wang , Wei Lü","doi":"10.1016/j.jpowsour.2025.236361","DOIUrl":"10.1016/j.jpowsour.2025.236361","url":null,"abstract":"<div><div>While metal tellurides are considered promising anode because of their high theoretical energy storage capacity, they encounter significant challenges like substantial volumetric expansion and slow ionic movement. These issues lead to unsatisfactory cycling stability and rate performance. In theoretical calculations aim at addressing the aforementioned issue, it is found that the introduction of iron ions and the induction of vacancies in telluride increase the electronic density of the anode system, thereby enhancing the diffusion dynamics of Li<sup>+</sup> and Na<sup>+</sup>. Based on these theoretical predictions, an Fe-Co heterostructured anode is successfully synthesized by hydrothermal method and experimentally validated in a multi-ion battery system. It demonstrates remarkable cycling stability at 0.1 A g<sup>−1</sup>, maintaining 91.2 % of its capacity after 100 cycles in Li-ion batteries (LIBs), and 93.4 % after 200 cycles in Na-ion batteries (SIBs). It corresponds to the theoretical calculation, the Fe-Co heterostructured anode demonstrates impressive rate capability, maintaining commendable battery performance even under high current conditions. With its superior ability to store ions, the FeTe<sub>2</sub>/CoTe<sub>2</sub> stands out as an optimal anode for high-performing.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"632 ","pages":"Article 236361"},"PeriodicalIF":8.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168468","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