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Journal articles on the topic 'Cathode composite'

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Published: 4 June 2021
Last updated: 22 June 2024

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1

Abdul Rahman, Hamimah, Linda Agun, and Mohamed Hakim Ahmad Shah. "Ba- and La- Strontium Cobalt Ferrite Carbonate Composite as Cathode Materials for Low Temperature SOFC." Key Engineering Materials 694 (May 2016): 125–29. http://dx.doi.org/10.4028/www.scientific.net/kem.694.125.

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Barium strontium cobalt ferrite (BSCF) and lanthanum strontium carbonate ferrite (LSCF)–samarium-doped ceria carbonate (SDCc) composite cathodes were developed based on various molar ratio of binary carbonate. The percentage of molar ratio for (Li/Na)2 binary carbonate in the composite cathodes were 67:33, 62:38, and 53:47. Influence of (Li/Na)2 binary carbonate addition on BSCF-SDCc and LSCF-SDCc were studied in terms of chemical, thermal, and physical properties. The composite-cathode powders were prepared using high-energy ball milling (HEBM) and followed by calcination at 750 °C for 2h. Ch
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2

Tripathi, Balram, Rajesh K. Katiyar, Gerardo Morell, Ambesh Dixit, and Ram S. Katiyar. "BiFeO3 Coupled Polysulfide Trapping in C/S Composite Cathode Material for Li-S Batteries as Large Efficiency and High Rate Performance." Energies 14, no. 24 (2021): 8362. http://dx.doi.org/10.3390/en14248362.

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We demonstrated the efficient coupling of BiFeO3 (BFO) ferroelectric material within the carbon–sulfur (C-S) composite cathode, where polysulfides are trapped in BFO mesh, reducing the polysulfide shuttle impact, and thus resulting in an improved cyclic performance and an increase in capacity in Li-S batteries. Here, the built-in internal field due to BFO enhances polysulfide trapping. The observation of a difference in the diffusion behavior of polysulfides in BFO-coupled composites suggests more efficient trapping in BFO-modified C-S electrodes compared to pristine C-S composite cathodes. Th
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3

Xu, Xing Yan, Chang Rong Xia, Shou Guo Huang, and Guang Yao Meng. "Intermediate-Temperature Solid Oxide Fuel Cells with Y0.25Bi0.75O1.5-Ag Cathodes." Materials Science Forum 475-479 (January 2005): 1157–60. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.1157.

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Composites consisting of silver and yttria-stabilized bismuth oxide (YSB) were fabricated and investigated as cathodes for intermediate-temperature solid oxide fuel cells (SOFCs) with thin electrolyte films of yttria-stabilized zirconia (YSZ). The films were deposited using spin coating with YSZ suspension. Comparison of YSB-Ag and conventional La0.8Sr0.2MnO3 (LSM) based cathodes showed that the YSB-Ag composite has better electrochemical performance; Interfacial polarization resistance of YSB-Ag cathode is 0.13 Ωcm2 at 750oC. Power density of the single cell with YSB-Ag cathode was about 535
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S.A., Muhammed Ali, Jarot Raharjo, Mustafa Anwar, et al. "Carbonate-Based Lanthanum Strontium Cobalt Ferrite (LSCF)–Samarium-Doped Ceria (SDC) Composite Cathode for Low-Temperature Solid Oxide Fuel Cells." Applied Sciences 10, no. 11 (2020): 3761. http://dx.doi.org/10.3390/app10113761.

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Perovskite-based composite cathodes, La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF)–Ce0.8Sm0.2O1.9-carbonate (SDCC), were investigated as cathode materials for low-temperature solid-oxide fuel cells. The LSCF was mixed with the SDC–carbonate (SDCC) composite electrolyte at different weight percentages (i.e., 30, 40, and 50 wt %) to prepare the LSCF–SDCC composite cathode. The effect of SDCC composite electrolyte content on the diffraction pattern, microstructure, specific surface area, and electrochemical performances of the LSCF–SDCC composite cathode were evaluated. The XRD pattern revealed that the SDCC p
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Mosiałek, M., A. Kędra, M. Krzan, E. Bielańska та M. Tatko. "Ba0.5Sr0.5Co0.8Fe0.2O3–δ–La0.6Sr0.4Co0.8Fe0.2O3–δ Composite Cathode for Solid Oxide Fuel Cell". Archives of Metallurgy and Materials 61, № 3 (2016): 1483–88. http://dx.doi.org/10.1515/amm-2016-0243.

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Abstract Composite cathodes contain Ba0.5Sr0.5Co0.8Fe0.2O3–δ and La0.6Sr0.4Co0.8Fe0.2O3–δ were tested in different configuration for achieving cathode of area specific resistance lower than Ba0.5Sr0.5Co0.8Fe0.2O3–δ and La0.6Sr0.4Co0.8Fe0.2O3–δ cathodes. Electrodes were screen printed on samaria-doped ceria electrolyte half-discs and tested in the three electrode setup by the electrochemical impedance spectroscopy. Microstructure was observed by scanning electron microscopy. The lowest area specific resistance 0.46 and 2.77 Ω cm−2 at 700 °C and 600 °C respectively revealed composite cathode con
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6

Minnmann, Philip, Anja Bielefeld, Raffael Ruess, et al. "Evaluating Kinetics of Composite Cathodes of All-Solid-State Batteries." ECS Meeting Abstracts MA2022-02, no. 7 (2022): 2496. http://dx.doi.org/10.1149/ma2022-0272496mtgabs.

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ASSBs (all-solid-state batteries) are promoted as an energy dense and safe alternative to current Li-ion batteries (LIBs) and attract great interest from academia and industry. In contrast to LIBs, which employ a liquid organic electrolyte, they utilize a solid electrolyte. This substitution promises to eliminate the flammability of the battery and to simplify the cell design. While recent research efforts have concentrated on miniaturizing and eventually even removing the anode host material in batteries, the relative portion of the cathode needs to be maximized, as cathodes are the only comp
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Pribytkov, Gennady, Victoria Korzhova, Elena Korosteleva, and Maksim Krinitcyn. "Effect of Silicon on the Surface Modification of Al-Cr Powder Cathodes Subjected to Vacuum Arc Treatment." Coatings 12, no. 7 (2022): 958. http://dx.doi.org/10.3390/coatings12070958.

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Al-Cr and Al-Cr-Si composite cathodes were obtained by the hot compaction of aluminum, chromium, and silicon powder mixtures. The phase transformations in the surface layer of the Al-Cr-Si composite cathodes subjected to the arc heating were considered. The elemental and phase compositions of the modified cathodes’ surfaces were studied using X-ray diffraction, scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). The effect of the silicon addition on the structural evolution in the cathode surface during arc evaporation is shown. It was found that an arc impact o
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8

Mohammad, Siti Fairus, Sufizar Ahmad, Hamimah Abdul Rahman, and Andanastuti Muchtar. "Diversification Studies on Samarium Strontium Cobaltite Regarding Thermal & Structural Properties as Based Composite Cathode of SOFC." Materials Science Forum 888 (March 2017): 162–66. http://dx.doi.org/10.4028/www.scientific.net/msf.888.162.

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In this study, samarium strontium cobaltite, Sm0.5Sr0.5CoO3−δ (SSC) and samarium doped ceria, Sm0.2 Ce0.8O1.9 (SDC) carbonate or (SDCC) was used as the new composite cathode powder materials. This composite cathode powder was prepared via high energy ball milling (HEBM) technique for LTSOFC application. Various weight percentages of SDCC ranging from 50 wt.% to 70 wt.% was chosen to be added with SSC powder. The prepared samples of SSC–CE55, SSC-CE64 and SSC-CE73 composite cathode powders were characterized by using TGA, XRD , FTIR in order to investigate their physical structural, morphologic
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9

Katiyar, Rajesh, Claudia C. Zuluaga Gomez, Ivan Castillo, et al. "Cqds@S/SWCNTS Composite Cathodes and Ferroelectric Coated Separator an Accelerating Agent of Li- Ions for High Performance Li-S Batteries." ECS Meeting Abstracts MA2023-01, no. 2 (2023): 573. http://dx.doi.org/10.1149/ma2023-012573mtgabs.

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In this work, we are reporting capacity retention for CQDs@S/SWCNTs composite cathode achieved a room temperature ferroelectric material of Bi0.925Gd0.075Fe0.95Ni0.05O3 (BGFNO) with high remanent polarization coated separator as Li-ion accelerating agent for high performance Li-S batteries. We synthesized mechanochemically composite cathodes using sulphur, SWCNTs and CQDs. The ferroelectric coated separator was used along cathode side for Li-ion diffusion and tested @ 200 mAg-1. The observed capacity retention of 650 mAhg-1 /460 mAhg-1 upto 100 cycles. Strong chemical binding effects due to fe
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10

Zhu, Wen Xia, Zhe Lü, Le Xin Wang, Xiao Yan Guan та Xin Yan Zhang. "Performance of Ba0.5Sr0.5Co0.8Fe0.2O3-δ-Ag Composite Cathode Materials for IT-SOFCs". Advanced Materials Research 311-313 (серпень 2011): 2309–14. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.2309.

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°Abstract. In order to develop new cathodes for reduced temperature SOFCs, Ba0.5Sr0.5Co0.8Fe0.2O3-δ-Ag composite cathode was investigated in intermediate-temperature Solid Oxide Fuel Cells (IT-SOFCs). The XRD results suggested that no chemical reactions between BSCF and Ag in the composite cathode were found. The resistance measurements showed that the addition of Ag into BSCF improved electrical conductivity of pure BSCF, and the improved conductivity resulted in attractive cathode performance. In addition, electrochemical impedance spectra exhibited the better performance of BSCF-Ag composit
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11

Zhang, Lei Lei, Jin Hua Huang, Zhao Yuan Song, Yi Dan Fu, Mo Liu та Tian Min He. "Evaluation and Optimization of Ba0.2Sr0.8Co0.9Nb0.1O3-δ-Gd0.1Ce0.9O1.95 Composite Cathodes for IT-SOFCs". Materials Science Forum 787 (квітень 2014): 221–26. http://dx.doi.org/10.4028/www.scientific.net/msf.787.221.

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Ba0.2Sr0.8Co0.9Nb0.1O3-δ(BSCN0.2)-xGd0.1Ce0.9O1.95(GDC) (x = 10, 20, 30 and 40 wt.%) composite cathodes were investigated for the potential application in the IT-SOFCs. The results of chemical compatibility measurement show that a small number of Gd and/or Ce ions may melt into the lattice of BSCN0.2 to form BSCN0.2-GDC solid solution. Thermal expansion coefficients effectively reduced by the incorporation of GDC. The electrochemical performance of BSCN0.2-xGDC composite cathodes increased with increasing x from 10 to 30 wt.%. When x = 30 wt.%, the area specific resistances were only 0.040 and
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12

Watanabe, Konosuke, Hiroyuki Shimada, Yuki Yamaguchi та ін. "Investigation of La0.65Ca0.35FeO3−δ as a Co-Free Cathode for Protonic Ceramic Fuel Cells with Yb-Doped BaZrO3 Electrolyte". ECS Meeting Abstracts MA2023-01, № 54 (2023): 50. http://dx.doi.org/10.1149/ma2023-015450mtgabs.

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In protonic ceramic fuel cells (PCFCs), the use of cobalt-free cathodes is expected to reduce manufacturing costs and improve durability performance. However, cobalt-free cathodes generally tend to have poor power generation performance due to their lower catalytic activity than cobalt-containing cathodes. Therefore, based on a previous study in which higher power generation performance was obtained with SOFCs using La0.65Ca0.35FeO3−δ (LCaF) than with SOFCs using La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) containing cobalt, we focused on LCaF as a cobalt-free cathode. In this study, we attempted to apply
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13

Zuluaga-Gómez, Claudia C., Balram Tripathi, Christian O. Plaza-Rivera, et al. "High Areal Capacity and Sustainable High Energy in Ferroelectric Doped Holey Graphene/Sulfur Composite Cathode for Lithium-Sulfur Batteries." Batteries 9, no. 6 (2023): 293. http://dx.doi.org/10.3390/batteries9060293.

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In this study, we are reporting the impact of the incorporation of ferroelectric nanoparticles (FNPs), such as BaTiO3 (BTO), BiFeO3 (BFO), Bi4NdTi3Fe0.7Ni0.3O15 (BNTFN), and Bi4NdTi3Fe0.5Co0.5O15 (BNTFC), as well as the mass loading of sulfur to fabricated solvent-free sulfur/holey graphene-carbon black/polyvinylidene fluoride (S/FNPs/CBhG/PVDF) composite electrodes to achieve high areal capacity for lithium-sulfur (Li-S) batteries. The dry-press method was adopted to fabricate composite cathodes. The hG, a conductive and lightweight scaffold derived from graphene, served as a matrix to host s
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14

Jiang, Xiukun, Yan Xin, Bijiao He, Fang Zhang, and Huajun Tian. "Effect of Heteroatom Doping on Electrochemical Properties of Olivine LiFePO4 Cathodes for High-Performance Lithium-Ion Batteries." Materials 17, no. 6 (2024): 1299. http://dx.doi.org/10.3390/ma17061299.

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Lithium iron phosphate (LiFePO4, LFP), an olivine–type cathode material, represents a highly suitable cathode option for lithium–ion batteries that is widely applied in electric vehicles and renewable energy storage systems. This work employed the ball milling technique to synthesize LiFePO4/carbon (LFP/C) composites and investigated the effects of various doping elements, including F, Mn, Nb, and Mg, on the electrochemical behavior of LFP/C composite cathodes. Our comprehensive work indicates that optimized F doping could improve the discharge capacity of the LFP/C composites at high rates, a
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15

Ahmad, Sufizar, M. S. A. Bakar, Hamimah Abdul Rahman, and A. Muchtar. "Brief Review: Electrochemical Performance of LSCF Composite Cathodes - Influence of Ceria-Electrolyte and Metals Element." Applied Mechanics and Materials 695 (November 2014): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amm.695.3.

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Solid oxide fuel cells (SOFC) are an efficient and clean power generation devices. Low-temperature SOFC (LTSOFC) has been developed since high-temperature SOFC (HTSOFC) are not feasible to be commercialized because high in cost. Lowering the operation temperature has caused substantial performance decline resulting from cathode polarization resistance and overpotential of cathode. The development of composite cathodes regarding mixed ionic-electronic conductor (MIEC) and ceria based materials for LTSOFC significantly minimize the problems and leading to the increasing in electrocatalytic activ
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Rioja-Monllor, Laura, Sandrine Ricote, Carlos Bernuy-Lopez, Tor Grande, Ryan O’Hayre та Mari-Ann Einarsrud. "High-Performance La0.5Ba0.5Co1/3Mn1/3Fe1/3O3−δ-BaZr1−zYzO3−δ Cathode Composites via an Exsolution Mechanism for Protonic Ceramic Fuel Cells". Inorganics 6, № 3 (2018): 83. http://dx.doi.org/10.3390/inorganics6030083.

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A novel exsolution process was used to fabricate complex all-oxide nanocomposite cathodes for Protonic Ceramic Fuel Cells (PCFCs). The nanocomposite cathodes with La0.5Ba0.5Co1/3Mn1/3Fe1/3O3−δ-BaZr1−zYzO3−δ nominal composition were prepared from a single-phase precursor via an oxidation-driven exsolution mechanism. The exsolution process results in a highly nanostructured and intimately interconnected percolating network of the two final phases, one proton conducting (BaZr1−zYzO3−δ) and one mixed oxygen ion and electron conducting (La0.5Ba0.5Co1/3Mn1/3Fe1/3O3−δ), yielding excellent cathode per
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17

Yusop, Umira Asyikin, Hamimah Abdul Rahman, Suraya Irdina Abdullah, and Dedikarni Panuh. "Effect of Milling Process and Calcination Temperature on the Properties of BSCF-SDC Composite Cathode." Key Engineering Materials 791 (November 2018): 74–80. http://dx.doi.org/10.4028/www.scientific.net/kem.791.74.

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The ionic conductivity, super conductivity, ferroelectricity, and magnetic resistance of barium strontium cobalt ferrite (BSCF) make it a good solid cathode material. This study aims to investigate the influence of milling process and calcination temperature on the behaviour of nanocomposite cathode BSCF–samarium-doped ceria (SDC). The BSCF–SDC composite powders were mixed using two milling processes, namely, wet milling and dry milling. The composite cathode powders were mixed through wet milling by high-energy ball milling at 550 rpm for 2 hours. For dry milling, the powders were milled at 1
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18

Kwon, Nam, Divine Mouck-Makanda, and Katharina Fromm. "A Review: Carbon Additives in LiMnPO4- and LiCoO2-Based Cathode Composites for Lithium Ion Batteries." Batteries 4, no. 4 (2018): 50. http://dx.doi.org/10.3390/batteries4040050.

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Carbon plays a critical role in improving the electronic conductivity of cathodes in lithium ion batteries. Particularly, the characteristics of carbon and its composite with electrode material strongly affect battery properties, governed by electron as well as Li+ ion transport. We have reviewed here various types of carbon materials and organic carbon sources in the production of conductive composites of nano-LiMnPO4 and LiCoO2. Various processes of making these composites with carbon or organic carbon sources and their characterization have been reviewed. Finally, the type and amount of car
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Ismail, Ismariza, Nurul Izzati Malek, Abdul Mutalib Jani, Mohd Hafiz Othman та Nafisah Osman. "Optimization of La0.6Sr0.4Co0.2Fe0.8O3-α - Ba(Ce0.6Zr0.4)0.9Y0.1O3-δ cathode composition for proton ceramic fuel cell application". Processing and Application of Ceramics 16, № 4 (2022): 374–83. http://dx.doi.org/10.2298/pac2204374i.

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Composite cathodes consisting of different compositional ratios of La0.6Sr0.4Co0.2Fe0.8O3-? (LSCF) and Ba(Ce0.6Zr0.4)0.9Y0.1O3-? (BCZY64), namely 100LSCF:0BCZY64 (L10B0), 70LSCF:30BCZY64 (L7B3), 50LSCF:50BCZY64 (L5B5) and 30LSCF:70BCZY64 (L3B7) were prepared via wet chemistry method. The symmetrical cell with a configuration of electrode|BCZY64|electrodewas fabricated using dry-pressingmethod for the electrolyte substrate and spin-coating technique for the cathode layer. The proton conduction in the composite cathode increases as the amount of proton-conducting phase increases as verified by t
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Sun, Shuo, Chen-Zi Zhao, Hong Yuan, et al. "Multiscale understanding of high-energy cathodes in solid-state batteries: from atomic scale to macroscopic scale." Materials Futures 1, no. 1 (2022): 012101. http://dx.doi.org/10.1088/2752-5724/ac427c.

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Abstract In the crucial area of sustainable energy storage, solid-state batteries (SSBs) with nonflammable solid electrolytes stand out due to their potential benefits of enhanced safety, energy density, and cycle life. However, the complexity within the composite cathode determines that fabricating an ideal electrode needs to link chemistry (atomic scale), materials (microscopic/mesoscopic scale), and electrode system (macroscopic scale). Therefore, understanding solid-state composite cathodes covering multiple scales is of vital importance for the development of practical SSBs. In this revie
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Xia, Yang, Zheng Fang, Chengwei Lu, et al. "A Facile Pre-Lithiated Strategy towards High-Performance Li2Se-LiTiO2 Composite Cathode for Li-Se Batteries." Nanomaterials 12, no. 5 (2022): 815. http://dx.doi.org/10.3390/nano12050815.

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Conventional lithium-ion batteries with a limited energy density are unable to assume the responsibility of energy-structure innovation. Lithium-selenium (Li-Se) batteries are considered to be the next generation energy storage devices since Se cathodes have high volumetric energy density. However, the shuttle effect and volume expansion of Se cathodes severely restrict the commercialization of Li-Se batteries. Herein, a facile solid-phase synthesis method is successfully developed to fabricate novel pre-lithiated Li2Se-LiTiO2 composite cathode materials. Impressively, the rationally designed
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Castillo, Ivan, Karuna K. Mishra, Valerio Dorvilien, et al. "Lead-Free Ferroelectric Ba0.9Sr0.1TiO3 Coupled Polysulfide Trapping on Sulfur Cathode in Stable and High Energy Density Lithium-Sulfur (Li-S) Batteries." ECS Meeting Abstracts MA2023-01, no. 2 (2023): 565. http://dx.doi.org/10.1149/ma2023-012565mtgabs.

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In the present work we are reporting electrochemical performance of Lead-free ferroelectric Ba0.9 Sr0.1TiO3 (BST), a high polarization (~14.58 μC/cm2 ) material, to assist polysulfide chemisorption via their permanent dipoles. The performance of fabricated cathodes in terms of structural, electronic, morphological, and electrochemical characteristics have been carried out with various concentrations of ferroelectric inclusion. X-ray diffraction analysis revealed tetragonal symmetry (c/a=1.0073) and the Raman spectroscopic studies confirmed A1(TO1), A1(TO2), A1(TO3) and A1(LO3) optical modes of
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Li, Zhiqi, Hao Sun, Yuepeng Pang, Mingming Yu, and Shiyou Zheng. "Investigation on Fabrication of Reduced Graphene Oxide-Sulfur Composite Cathodes for Li-S Battery via Hydrothermal and Thermal Reduction Methods." Materials 14, no. 4 (2021): 861. http://dx.doi.org/10.3390/ma14040861.

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Lithium-sulfur (Li-S) battery is considered one of the possible alternatives for next-generation high energy batteries. However, its practical applications are still facing great challenges because of poor electronic conductivity, large volume change, and polysulfides dissolution inducing “shuttle reaction” for the S cathode. Many strategies have been explored to alleviate the aforementioned concerns. The most common approach is to embed S into carbonaceous matrix for constructing C-S composite cathodes. Herein, we fabricate the C-S cathode reduced graphene oxide-S (rGO-S) composites via one s
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Palomares, Jan Carlo, Mercy Jane Mora, and Rinlee Butch Cervera. "Fabrication of LiFePO4-Based Composite Cathode Deposited on LLTO Li-Ion Conducting Solid Electrolyte via Slurry Coating and Hot-Pressing." Solid State Phenomena 319 (June 14, 2021): 30–34. http://dx.doi.org/10.4028/www.scientific.net/ssp.319.30.

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LiFePO4 (LFPO)-based composite cathode was deposited on Li0.35La0.55TiO3 (LLTO) solid electrolyte via slurry coating method. A composite cathode comprising of LiFePO4, LLTO, and carbon black (CB) were mixed together in a slurry and deposited on a dense LLTO pellet substrate. The effects of heat treatment temperature and hot-pressing in the structure and densification of the deposited composite cathode were investigated. Cathode component precursors were analyzed for its particle size distribution using particle size analyzer and revealed a bimodal particle size distribution for each component
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Ramin Babazadeh Dizaj and Nastaran Sabahi. "Optimizing LSM-LSF composite cathodes for enhanced solid oxide fuel cell performance: Material engineering and electrochemical insights." World Journal of Advanced Research and Reviews 20, no. 1 (2023): 1284–91. http://dx.doi.org/10.30574/wjarr.2023.20.1.2183.

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In response to pressing environmental concerns and the ever-increasing global energy demand, the pursuit of sustainable energy sources has garnered substantial momentum. A predominant focus of research within this domain revolves around the enhancement of solid oxide fuel cell performance, with particular attention directed toward the intricate oxygen reduction reaction transpiring at the cathode electrode. The present investigation embarks upon the exploration of a composite material comprising La1-xSrxMnO3-δ (LSM) and La1-xSrxFeO3-δ (LSF) as prospective cathode materials. However, the achiev
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Ihrig, Martin, Alexander M. Laptev, Martin Finsterbusch, Dina Fattakhova-Rohlfing, Olivier Guillon, and Ruijie Ye. "Garnet-Based Composite Cathodes for All-Solid-State Lithium Batteries." ECS Meeting Abstracts MA2022-01, no. 2 (2022): 283. http://dx.doi.org/10.1149/ma2022-012283mtgabs.

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Garnet-based all-solid-state lithium batteries (ASSLB) provide high intrinsic safety, extended operational temperature range, and high energy density. As the first two are intrinsic to the materials system, one prerequisite to obtain high energy densities with such ASSLBs is the manufacturing of composite cathodes. Preferably, cathode active material (CAM) and electrolyte should form an intertwined 3D-network with an intimate extended contact between two phases. The interface between the CAM and the electrolyte should feature high total surface area with a low impedance to enable an efficient
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Tolstopyatova, Elena G., Mikhail A. Kamenskii, and Veniamin V. Kondratiev. "Vanadium Oxide–Conducting Polymers Composite Cathodes for Aqueous Zinc-Ion Batteries: Interfacial Design and Enhancement of Electrochemical Performance." Energies 15, no. 23 (2022): 8966. http://dx.doi.org/10.3390/en15238966.

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Aqueous zinc-ion batteries (AZIBs) are being intensively developed as potential alternative electrochemical power sources, due to their advantages such as low cost, high safety, abundance of natural zinc resources and appropriate energy density. Among currently investigated prospective cathode materials for AZIBs, vanadium oxide-based composites with intrinsically conducting polymers have shown many advantages, such as high capacity, high power density and long battery life. This review gives a focused view of the design for the boosting of zinc ion storage performance using intrinsically cond
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Dedikarni, Andanastuti Muchtar, Norhamidi Muhamad, and Wan Ramli Wan Daud. "Microstructure Characterisation of Ag2O3-Bi2O3 Composite Cathodes for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs)." Key Engineering Materials 471-472 (February 2011): 97–102. http://dx.doi.org/10.4028/www.scientific.net/kem.471-472.97.

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Porous Ag-Bi2O3 composite cathodes on stainless steel (SS) substrate, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the slurry painting method. Characterisation of the composite cathode includes the thermal analysis, morphology, and porosity of the porous cathode. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The
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Lobanov, Svyatoslav V., Ivan A. Fedorov, and Evgeniy P. Sheshin. "DEVELOPING MANUFACTURING TECHNOLOGY OF COMPOSITE CATHODES WITH METHOD OF PRESSING PYROLYTIC GRAPHITE WITH TRIPLE CARBONATE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 59, no. 8 (2018): 81. http://dx.doi.org/10.6060/tcct.20165908.29y.

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In this work a manufacturing technology for a composite cathode is described. In this cathode draphite and emission-active substance forms intercalated chemical compound. These cathodes were studied in a mode of field thermo electrone emission at temperatures of 0-1100 ° C and anode voltages of 1 – 15 kV. The article contains results of determination of optimal pressing parameters, different methods of cathode surface processing and field emission current-voltage characteristics.
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Wu, Ping, Wenshu Yang, Jun Sun, and Gaohui Wu. "CNT/Cu composite cathode: A new approach to long lifetime for explosive emission cathode." Journal of Applied Physics 132, no. 23 (2022): 235102. http://dx.doi.org/10.1063/5.0112979.

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Carbon nanotube (CNT) cathodes have attracted much attention in recent years due to the advantages of large field enhancement factor and low emission threshold. However, the severe ablation under intense emission makes the lifetime short and therefore limits the application in the field such as high power microwave generation. To resolve this problem, this paper proposes to mix CNTs with metals, and a novel CNT/Cu composite cathode is manufactured. The lifetime experiments under voltage of 940 kV and repetition frequency of 20 Hz demonstrate that the lifetime of the CNT/Cu composite cathode is
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31

Watanabe, Konosuke, Hiroyuki Shimada, Yuki Yamaguchi та ін. "Investigation of La0.65Ca0.35FeO3−δ as a Co-Free Cathode for Protonic Ceramic Fuel Cells with Yb-Doped BaZrO3 Electrolyte". ECS Transactions 111, № 6 (2023): 341–47. http://dx.doi.org/10.1149/11106.0341ecst.

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Although cobalt-containing cathode materials are widely used in protonic ceramic fuel cells (PCFCs) because of its high catalytic activity, cobalt diffuses into the proton-conducting electrolyte, thereby decreasing the power generation performance. To achieve a higher power generation performance in PCFCs with a cobalt-free cathode, we fabricate anode-supported PCFCs using BaZr0.8Yb0.2O3–δ as the electrolyte, and composite cathodes of La0.65Ca0.35FeO3−δ (LCaF) and BaZr0.1Ce0.7Y0.1Yb0.1O3−δ (BZCYYb). The mixing weight ratios of LCaF and BZCYYb are varied to 80:20, 70:30, 60:40, 50:50, and 30:70
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32

Bakar, M. S. A., Sufizar Ahmad, H. A. Rahman, M. A. F. M. Tasrim, H. Basri, and A. Muchtar. "Effects of Milling Techniques and Calcinations Temperature on the Composite Cathode Powder LSCF-SDC Carbonate." Advanced Materials Research 893 (February 2014): 325–28. http://dx.doi.org/10.4028/www.scientific.net/amr.893.325.

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Composite cathode La0.6Sr0.4Co0.2Fe0.8O3-δ-SDC carbonates (LSCF-SDCC) for applications of low temperature solid oxide fuel cell (LTSOFC) were developed. LSCF-SDCC were mixed using high energy ball milling technique via dry and wet milling method followed by calcinations at 700, 750 and 800 °C. The findings reveal that different calcinations temperature and milling techniques gives effects to the composite cathodes powder. Clear peak intensity demonstrate from wet milling technique as confirm via XRD analysis indicates that crystalline structure has been improved. FESEM investigation demonstrat
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33

Niketic, Svetlana, Gina Filoso, Mohamed Houache, Zouina Karkar, Chae-Ho Yim, and Yaser Abu-Lebdeh. "5V Solid-State Lithium Batteries Using Garnet-Based Electrolytes and LiNi0.5Mn1.5O4 Spinel Cathode Composite." ECS Meeting Abstracts MA2022-01, no. 2 (2022): 303. http://dx.doi.org/10.1149/ma2022-012303mtgabs.

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There is an ever increasing demand to increase the gravimetric and volumetric energy density of Lithium batteries as well as enhancing their safety cycle life and lower safety. Solid-State batteries (SSB) enjoy a great attention nowadays due to their potential to meet all those requirements and power the EV revolution. The use of solid electrolytes (SE) in commercial batteries has been solely limited to polymer electrolytes based on poly(ethylene oxide), PEO, coupled with LiFePO4 (LFP) that are limited by the oxidative stability of PEO to < 3.6 V and the low potential of LFP at 3.4 V. The c
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34

Kang, Junhee, Beomsu Kim, Jonghyeok Yun, and Jong-Won Lee. "Chemomechanical Failure of Solid Composite Cathodes Accelerated by High-Strain Anodes in All-Solid-State Batteries." ECS Meeting Abstracts MA2023-02, no. 65 (2023): 3064. http://dx.doi.org/10.1149/ma2023-02653064mtgabs.

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Lithium-ion batteries (LIBs) have played a major role in energy storage, particularly, for portable electronic devices. However, the energy density of the LIB has reached its limit, which is not high enough to fulfill an ever-growing demand for long-lasting batteries. More importantly, safety issues arising from flammable liquid electrolytes are considered critical problems to be addressed for large-scale batteries. All-solid-state batteries (ASSBs) with non-flammable solid electrolytes (SEs) have been emerging as a promising alternative to liquid-electrolyte-based LIBs. Among various types of
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35

Rahman, Hamimah A., Andanastuti Muchtar, Norhamidi Muhamad та Huda Abdullah. "Influence of Calcination on the Properties of La0.6Sr0.4Co0.2Fe0.8O3-δ-Samarium Doped Ceria Carbonate". Applied Mechanics and Materials 465-466 (грудень 2013): 949–53. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.949.

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The correlation between calcination temperature and properties (physical and electrochemical) of composite cathodes comprising lanthanum strontium cobaltite ferrite (LSCF) with samarium-doped ceria carbonate (SDCC) has been investigated. LSCF-SDC carbonate (LSCF-SDCC) composite cathode powders prepared via ball-milling were calcined at various temperatures in the range of 700850 °C. X-ray diffraction (XRD) results confirmed that the applied calcination temperatures do not affect the chemical compatibility and the LSCF perovskite cubic structure of the composite powders. FTIR spectra verified t
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López de Victoria, Mónica, Loraine Torres-Castro, Rajesh K. Katiyar, Jifi Shojan, Valerio Dorvilien, and Ram S. Katiyar. "Synthesis, Characterization, and Electrochemical Analysis of the Cobalt Free Composite Cathode Material 0.5Li2MnO3-0.25LiMn2O4-0.25LiNi0.5Mn0.5O2 for Lithium Ion Batteries Applications." MRS Advances 1, no. 45 (2016): 3063–68. http://dx.doi.org/10.1557/adv.2016.515.

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ABSTRACTThe inclusion of a spinel structure in the layered-layered composite cathode material is currently explored to enhance the cycling stability and electrochemical properties of lithium ion batteries. Li2MnO3 based composite cathodes are one of the most widely investigated positive electrodes due to their high discharge capacity and rate capability. In our studies, we have synthesized the cobalt-free layered-layered-spinel composite cathode material, 0.5Li2MnO3-0.25LiMn2O4-0.25LiNi0.5Mn0.5O2 (LLNMO), via the sol-gel method. The structure of the composition was characterized using XRD and
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37

Stavola, Alyssa M., Dominick P. Guida, Andrea M. Bruck, Xiao Sun, Hongli Zhu, and Joshua W. Gallaway. "Operando Measurement of Lithiation Gradients in NMC111-Argyrodite All-Solid-State Composite Cathodes." ECS Meeting Abstracts MA2023-01, no. 6 (2023): 1066. http://dx.doi.org/10.1149/ma2023-0161066mtgabs.

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Achieving the high energy density targets in all-solid-state batteries (ASSBs) will require thick cathodes optimized for full utilization of active material. In composite cathodes with sulfide SSEs, the exclusion of carbon additives makes cathode design to balance ionic and electronic conductivities all the more important. Li-Ni1/3Mn1/3Co1/3O2 (NMC111) is a widely studied cathode material for its high energy density and high working voltage. The lattice parameters of this well-studied structure directly correlate to the amount of Li in the material, allowing for very accurate measurements of l
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38

Li, Zhengzheng. "MnO 2 –graphene nanosheets wrapped mesoporous carbon/sulfur composite for lithium–sulfur batteries." Royal Society Open Science 5, no. 2 (2018): 171824. http://dx.doi.org/10.1098/rsos.171824.

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MnO 2 –graphene nanosheets wrapped mesoporous carbon/sulfur (MGN@MC/S) composite is successfully synthesized derived from metal–organic frameworks and investigated as cathode for lithium-ion batteries. Used as cathode, MGN@MC/S composite possesses electronic conductivity network for redox electron transfer and strong chemical bonding to lithium polysulfides, which enables low capacity loss to be achieved. MGN@MC/S cathodes exhibit high reversible capacity of 1475 mA h g −1 at 0.1 C and an ultra-low capacity fading of 0.042% per cycle at 1 C over 450 cycles.
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39

Hwa, Yoon. "(Invited) New Synthesis Strategies to Develop High Performance Sulfur-Carbon Composites Cathodes for Lithium/Sulfur Batteries." ECS Meeting Abstracts MA2023-02, no. 4 (2023): 783. http://dx.doi.org/10.1149/ma2023-024783mtgabs.

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Lithium/sulfur cells (Li/S) are recognized as a highly promising, inexpensive, and high-specific energy storage system due to the low cost of elemental sulfur and high theoretical specific capacity (1,675 mAh/g) of a sulfur cathode when paired with a lithium anode.1 However, practical applications of Li/S cells have been impeded by challenges related to sulfur cathodes, such as low sulfur conductivity of sulfur, the polysulfides shuttle, and changes in electrode microstructure during cycling.2-4 Sulfur-carbon (S-C) composites have been extensively studied as an effective approach to overcome t
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40

Abduali, Baeshov, Ivanov Nikolay, and Myrzabekov Begzat. "Electrochemical Behavior of Selenium as Part of Composite Electrode in Sulfuric Acid Medium." JOURNAL OF ADVANCES IN CHEMISTRY 7, no. 3 (2011): 1378–84. http://dx.doi.org/10.24297/jac.v7i3.2373.

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The method of productiion of the composite selenium-graphitic electrodes based on organic polymer binder was proposed. Electrochemical behavior of the elementary selenium as content of composite electrode in sulfuric acid medium was assessed. A formation of hydrogen selenide during the cathode polarization, and formation of selenite and selenate ions was shown. An influence of potential spread velocity, acid concentration, and temperature of electrolyte were evaluated. Effective activation power for cathode process was estimated using the temperature-cathodic method.
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41

Agun, Linda, Sufizar Ahmad, Andanastuti Muchtar, and Hamimah Abd Rahman. "Influence of Binary Carbonate on the Physical and Chemical Properties of Composite Cathode for Low-Temperature SOFC." Advanced Materials Research 1087 (February 2015): 177–81. http://dx.doi.org/10.4028/www.scientific.net/amr.1087.177.

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Cathode-carbonate is a prospective material for low-temperature solid oxide fuel cells (LT-SOFCs). The influence of carbonate on the properties of cathode LT-SOFCs was studied. Different amounts of binary carbonate (Li2CO3:Na2CO3) were prepared at molar ratios of 67:33 and 62:38. The cathode composite powders were calcined at 750 °C for 2 h before uniaxial press. X-ray diffraction results confirmed that the carbonate in cathode composite existed as amorphous phase. Therefore, carbonate has a good compatibility with cathode composite powders. High-energy ball milling maintained the composite ca
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42

Abd Aziz, Azreen Junaida, Nurul Akidah Baharuddin, Mahendra Rao Somalu та Andanastuti Muchtar. "Layering Optimization of the SrFe0.9Ti0.1O3−δ–Ce0.8Sm0.2O1.9 Composite Cathode". Molecules 27, № 8 (2022): 2549. http://dx.doi.org/10.3390/molecules27082549.

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Cathode thickness plays a major role in establishing an active area for an oxygen reduction reaction in energy converter devices, such as solid oxide fuel cells. In this work, we prepared SrFe0.9Ti0.1O3−δ–Ce0.8Sm0.2O1.9 composite cathodes with different layers (1×, 3×, 5×, 7×, and 9× layer). The microstructural and electrochemical performance of each cell was then explored through scanning electron microscopy and electrochemical impedance spectroscopy (EIS). EIS analysis showed that the area-specific resistance (ASR) decreased from 0.65 Ωcm2 to 0.12 Ωcm2 with the increase in the number of laye
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43

Marbella, Lauren. "Resolving Chemical and Spatial Heterogeneities at Complex Electrochemical Interfaces in Li Ion Batteries." ECS Meeting Abstracts MA2022-02, no. 3 (2022): 235. http://dx.doi.org/10.1149/ma2022-023235mtgabs.

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The development of cheap, high energy density electrode materials for Li ion batteries (LIBs) is critical to reaching net zero emissions targets and mitigating climate change. To this end, Ni- and Mn-rich transition metal oxide cathodes simultaneously offer high energy densities as well as cost effective solutions for LIBs. Despite the immense potential of these materials, both Ni- and Mn-rich cathodes suffer from severe interfacial instabilities that lead to crystallographic rearrangement of the active material surface, transition metal dissolution, and the formation of a cathode electrolyte
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44

Ahmad, S., M. S. A. Bakar, A. Muchtar, N. Muhamad, and H. A. Rahman. "The Effect of Milling Speed and Calcination Temperature towards Composite Cathode LSCF-SDC Carbonate." Advanced Materials Research 576 (October 2012): 220–23. http://dx.doi.org/10.4028/www.scientific.net/amr.576.220.

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The effects of milling speed and calcinations temperature towards La0.6Sr0.4CO0.2Fe0.8O3-δ-SDC carbonate (LSCF-SDC carbonate) composite cathodes were investigated. The preparation of samarium-doped ceria (SDC) carbonate was firstly done by milling the SDC nanopowder with carbonate using the high-energy ball milling (HEBM) in air at room temperature. The obtained SDC carbonate was then used to mill with composite powder of lanthanum strontium cobalt ferrite (LSCF) which is one of the promising materials for the cathode of solid oxide fuel cells (SOFC). The purpose of milling LSCF composite powd
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45

Diao, Zhuo, Takaaki Imaizumi, Keita Mizuno, et al. "Investigation on Reaction Mechanism in an SOFC Composite Cathode by Using Patterned Thin Film Electrodes." ECS Meeting Abstracts MA2023-01, no. 54 (2023): 176. http://dx.doi.org/10.1149/ma2023-0154176mtgabs.

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Introduction For the further commercial use of solid oxide fuel cells (SOFCs), operating at intermediate temperatures is demanded. When reducing the operating temperature, the degradation of cathodic activity occupies the largest part of degradation of cell performance. Therefore, to improve the performance of SOFCs at intermediate temperature, the activity of cathodic reaction has to be improved. The cathodic reaction of SOFCs proceeds not only at triple phase boundaries (TPBs) of electrode, electrolyte and gas but also at double phase boundaries (DPBs) of electrode and gas, when a mixed ioni
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46

Zhai, Ji Min, Xi Wen Song, Fen Zhou та Sheng Li An. "Influence of Sintering Temperature on the Electrochemical Performance of Sm0.5-XGdxSr0.5Co 3-δ/Gd0.1Ce0.9O1.95 Composite Cathode". Advanced Materials Research 239-242 (травень 2011): 1613–16. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1613.

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In this paper, Sm0.5-xGdxSr0.5CoO3-δ(SGSC, x=0 and 0.2) powders were prepared using the solid-state reaction method. Their structure was identified by XRD. All powders formed the perovskite phase when calcined at 1100°C for 5 h. Sm0.3Gd0.2Sr0.5CoO3-δ/Gd0.1Ce0.9O1.95slurrieswere screen printed onto both surfaces of Gd0.1Ce0.9O1.95electrolyte and fired at different temperatures to fabricate the composite cathodes. The electrochemical property of the composite cathodes was characterized by the alternative current impedance spectroscopy. The impedance resistance of the composite cathodes increased
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Choi, Jae Hong, Sumyeong Choi, Tom James Embleton, et al. "Analysis of Ni-Rich Cathode Composite Electrode Performance According to the Conductive Additive Distribution for Application in Sulfide All-Solid-State Lithium-Ion Batteries." Batteries 9, no. 12 (2023): 590. http://dx.doi.org/10.3390/batteries9120590.

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All-solid-state lithium-ion batteries (ASSLBs) represent a promising breakthrough in battery technology owing to their high energy density and exceptional stability. When crafting cathode electrodes for ASSLBs, the solid electrolyte/cathode material interface is physically hindered by the specific morphology of carbon additive materials. In this paper, we examine the distribution of conductive additives within the electrode and its impact on the electrochemical performance of composites incorporating either nano-sized carbon black (CB) or micron-sized carbon nanofibers (CNF) into Ni-rich (LiNi
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Agun, Linda, Muhamad Subri Abu Bakar, Sufizar Ahmad, Andanastuti Muchtar, and Hamimah Abd Rahman. "Influence of Ag on Chemical and Thermal Compatibility of LSCF-SDCC for LT-SOFC." Applied Mechanics and Materials 773-774 (July 2015): 445–49. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.445.

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In addition to the good electrochemical performance criteria in solid oxide fuel cell (SOFC) applications, cathode material must match thermal expansion with other SOFC components. Thus, effects of Ag on thermal mismatch, chemical reactions, and microstructure are investigated. Ag (1 wt% to 5 wt. %) was mixed with La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF6428) and Sm-doped ceria carbonate (SDCC) composite cathode powder. LSCF6428-SDCC-Ag samples were sintered at 600 °C for 2 h. The thermal expansion coefficients (TECs), which were determined using a dilatometer, indicated relatively less TEC mismatch bet
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Bakar, Muhamad Subri Abu, M. F. Kamaruddin, Sufizar Ahmad, Hamimah Abdul Rahman, Hatijah Basri, and Andanastuti Muchtar. "Effects of Calcination Factors on the Composite Cathode Powder LSCF-SDC Carbonate by Using Dry Milling." Applied Mechanics and Materials 465-466 (December 2013): 167–71. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.167.

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The effects of calcination factors on the La0.6Sr0.4Co0.2Fe0.8O3-δ-SDCC (LSCF-SDCC) composite cathodes powder were investigated. LSCF-SDCC has been prepared using high energy ball milling technique via dry milling method. The resultant LSCF-SDCC composite cathodes powder then were calcined at 700, 750 and 800 °C with soaking time of 1, 2 and 3 hours. The findings reveal that different calcinations temperature and soaking time gives effects to the composite cathodes powder. Clear peak intensity demonstrate from calcination temperature 750 °C as confirm via XRD analysis indicates that crystallin
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50

Wang, Zhao Yang, Jing Wu Zheng, Wei Cai, et al. "A New Cutting Wire Prepared by Copper-Diamond Composite Electroplating." Materials Science Forum 788 (April 2014): 662–67. http://dx.doi.org/10.4028/www.scientific.net/msf.788.662.

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iamond cutting wire, as a new one, could overcome the defects of traditional cutting wire and would have a wide potential application. Electroplating diamond wire was prepared by composite electroplating in this article. The influence of cathodic current density, the diamond content in the electrolyte and other process conditions on the amount of diamond in the composite coating was checked by EDTA titration analysis. Effects of the diamond content in the electrolyte on electrochemical process of copper-diamond composite electro-deposition were investigated by measuring electrochemical polariz
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