Article
Materials Science, Ceramics
F. Giovannelli, E. Sabarthes, F. Delorme
Summary: In this study, spark plasma sintering was used to prepare dense ceramics of La7Mo7O30 from La2Mo2O9 powder and investigate their thermoelectric properties. The experimental results show that La2Mo2O9 was reduced to La7Mo7O30 during the SPS process. The obtained La7Mo7O30 ceramic exhibits semiconducting behavior with a high electrical conductivity at 1000 K and a very low thermal conductivity throughout the temperature range from room temperature to 1000 K. The figure of merit reached 0.04 at 1000 K.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Yingju Wu, Shuangshuang Zhang, Zitai Liang, Xiaoyu Wang, Mengdong Ma, Kun Luo, Yang Zhang, Julong He, Dongli Yu, Bo Xu, Zhisheng Zhao, Yongjun Tian
Summary: A series of amorphous carbon materials were synthesized by spark-plasma sintering fullerene C-60 at different temperatures in this study. These materials exhibited excellent mechanical properties, including high compressive strength, indentation hardness, and elastic recovery. The synthesized amorphous carbons showed superior performance compared to commercial isotropic graphite materials.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Jiahua Zhu, Yuanfei Cai, Yan Zhang, Xiaodi Liu, Jinseng Tian, Jiang Ma, Jun Shen
Summary: The FeSiB-rich particle-reinforced Cu metal matrix composites were successfully fabricated using the spark plasma sintering technique. The composites showed significantly enhanced strength without sacrificing ductility, which was mainly attributed to the homogeneously distributed reinforcements and high interfacial strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Ceramics
Jie Liang, Xuetong Zhao, Shenglin Kang, Jing Guo, Zhiling Chen, Yuli Long, Qian Zeng, Jianjie Sun, Lijun Yang, Ruijin Liao, Clive A. Randall
Summary: In this work, a hybrid cold sintering/spark plasma sintering (CSP-SPS) process is demonstrated for densifying and controlling grain growth in ZnO ceramics. The CSP-SPS process achieves high densities (>98%) at lower temperatures (200-300 ℃) and exhibits mild grain coarsening.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Juan Pinuela-Noval, Daniel Fernandez-Gonzalez, Marta Suarez, Luis Antonio Diaz, Luis Felipe Verdeja, Adolfo Fernandez
Summary: This manuscript investigates the influence of chromium content on the properties of novel graphite-chromium composites obtained by spark plasma sintering (SPS), which have great potential application in heat dissipation. Green compacts were first obtained by uniaxial pressing and then the composite was sintered under vacuum conditions. Different chromium contents were studied, with the best properties obtained in the case of the composite with 7 vol.% Cr.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Yannan Dong, Jiaqi Liu, Pu Wang, Huan Zhao, Jing Pang, Xiaoyu Li, Jiaquan Zhang
Summary: The new generation of high-frequency and high-efficiency motors require core materials with high soft magnetic properties, mechanical properties, and corrosion resistance. Bulk amorphous and nanocrystalline alloys meet these requirements and fit the concept of integrated forming. Spark plasma sintering (SPS) is a promising method for fabricating bulk metallic glasses (BMGs) and overcoming the limitations of traditional casting technology. In this study, Fe84Si7B5C2Cr2 soft magnetic amorphous powders were prepared using a new atomization technology. The effects of sintering temperature on the compacts were analyzed using SEM, XRD, VSM, and universal testing machine. The results showed that the powders could not be consolidated below a certain sintering temperature, but they could be successfully prepared at higher temperatures. The density, saturation magnetization, coercivity, and compressive strength of the compacts increased with the elevated sintering temperature. Crystallization occurred even at lower temperatures, leading to a sharp increase in the coercivity of the compacts. The size of the nanocrystals increased as the temperature increased, resulting in a significantly enhanced coercivity and saturation magnetization.
Article
Chemistry, Physical
Dongjiang Zhang, Rui Yu, Xuelei Feng, Xuncheng Guo, Yongkang Yang, Xiqing Xu
Summary: In this study, Al2O3 nanoceramics were synthesized through spark plasma sintering (SPS) of amorphous and polycrystalline powders with similar particle sizes. The sintering processes and resulting products were compared based on the starting powder conditions. The threshold temperature for achieving near-full density of the Al2O3 nanoceramics was found to be 1450°C for polycrystalline powders and 1300°C for amorphous powders. The nanoceramics prepared from amorphous powders exhibited a mean grain size of 170 nm and superior mechanical properties, including high bending strength, Vickers hardness, and fracture toughness. Additionally, they showed larger dynamic strength and dynamic strain compared to those prepared from polycrystalline powders. The toughening mechanism was explained based on the separation of quasi-boundaries.
Article
Materials Science, Multidisciplinary
R. W. Harrison, J. Morgan, J. Buckley, T. Abram, D. T. Goddard, N. J. Barron
Summary: The study demonstrates that using spark plasma sintering technology can effectively manufacture high-density MOx fuel pellets. The formation of Ce-rich regions and the Ce content in the Ce-MOx manufactured by SPS show significant differences, but still meet MOx fuel specifications.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Ceramics
M. Suarez, D. Fernandez-Gonzalez, C. F. Gutierrez-Gonzalez, L. A. Diaz, A. Borrell, J. S. Moya, R. Torrecillas, A. Fernandez
Summary: This study investigates the effect of the degree of compaction of green parts on the properties of a Graphite-5.5 vol. % Molybdenum- 0.6 vol. % Titanium composite obtained by SPS. The composite exhibits different properties depending on the direction of the applied pressure, with significantly better in-plane properties. Samples uniaxially pressed at 60 MPa show highly improved properties comparable to those obtained under extreme conditions, suggesting the potential for industrial-scale production and applications as a heat sink.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Electrochemistry
Artem Glukharev, Oleg Glumov, Maria Temnikova, Ali Saffar Shamshirgar, Olga Kurapova, Irina Hussainova, Vladimir Konakov
Summary: The study investigated the electrochemical behavior of spark plasma sintered zirconia-reduced graphene oxide composites, revealing the impact of graphene addition on conductivity. The addition of a small amount of graphene altered the conductivity from fully ionic to mixed electronic/ionic mode, showing good electron and ion conductivity within a certain temperature range.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Mickael Coeffe-Desvaux, Nicolas Pradeilles, Pascal Marchet, Marion Vandenhende, Mickael Joinet, Alexandre Maitre
Summary: Aluminum nitride ceramics were prepared by hot-pressing and spark-plasma sintering using cerium oxide as a sintering aid. The presence of an amorphous layer in the AlN raw powder led to the formation of aluminum oxide. The reduction of CeO2 introduced as a sintering aid promoted the formation of a transient liquid phase during sintering. The composition and distribution of secondary phases influenced the electrical conductivity of the ceramics.
Article
Materials Science, Ceramics
D. W. Zhang, Y. Zhang, Y. F. Cai, B. W. Zang, F. Zhao, Y. C. Wang, R. Umetsu, Z. Z. Li, X. Tong, J. T. Huo, S. L. Che, J. Q. Wang
Summary: Amorphous powder compacts of Fe77.7Si8B10P4Cu0.3 with high relative density (rho r = 94%), high saturated magnetic induction (Bs = 1.34 T), and high permeability (mu = 163 at 20 kHz) were fabricated by spark plasma sintering. Fe77.7Si8B10P4Cu0.3 spherical amorphous powders with good amorphous forming ability were prepared by regulating the material composition and the particle size distribution using gas atomization.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Inorganic & Nuclear
K. Park, H. Y. Hong, S. Y. Gwon
Summary: In this work, the combination of CS and SPS process, as well as the co-substitution of Li and Mg, effectively improve the electrical transport properties of Bi2Sr2Co2Oy.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Vaclav Tyrpekl, Marco Cologna, Michael Holzhauser, Petr Svora
Summary: This paper investigates the process of flash spark plasma sintering (FSPS) and the densification process of Gd0.1Ce0.9O2-x powder, finding that low electrical fields are sufficient for flash sintering to occur. The study discusses the challenges of sintering ceria using FAST techniques due to its mechanochemical transformations.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Jeong Hyun Kim, Myeongjun Ji, Jongmin Byun, Young-Keun Jeong, Sung -Tag Oh, Young-In Lee
Summary: This study successfully synthesized W-Y2O3 composite powders with uniformly dispersed Y2O3 nanoparticles using ultrasonic spray pyrolysis and subsequent hydrogen reduction, demonstrating excellent properties and purity.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Energy & Fuels
Bhugendra Chutia, Nayab Hussain, Panchanan Puzari, Deshetti Jampaiah, Suresh K. Bhargava, Ekaterina Matus, Ilyas Z. Ismagilov, Mikhail Kerzhentsev, Pankaj Bharali
Summary: A hybrid heteronanostructure of alpha-MnO2/Mn3O4/CeO2 embedded in Vulcan carbon with an atomic-level coupled nanointerface is explored for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER), showing enhanced bifunctional activity with CeO2 playing an essential role in increasing the surface Mn/4+ for ORR/OER processes. The unique hybrid structure with oxide-oxide interface is correlated to explain the mechanistic pathway, with multistate Mn and Ce synergistically influencing the superior activity and stability.
Article
Energy & Fuels
Chiranjita Goswami, Kumar Kashyap Hazarika, Yusuke Yamada, Pankaj Bharali
Summary: A nonprecious mixed MO hybrid, Co3O4-CeO2/C, shows high activity in the oxygen reduction reaction and oxygen evolution reaction, with the potential to replace noble metals and develop low-cost bifunctional electrodes for energy devices.
Review
Chemistry, Physical
Suranjana Patowary, Rashmi Chetry, Chiranjita Goswami, Bhugendra Chutia, Pankaj Bharali
Summary: This article primarily documents the recent advancements and challenges of supported nanomaterials with fascinating properties towards oxygen reduction reaction (ORR). The use of carbon-based materials as support and the significant factors affecting ORR activity are discussed, along with the electrochemical techniques and parameters used for data collection and evaluation.
Article
Chemistry, Physical
Bhugendra Chutia, Pankaj Bharali
Summary: We report the fabrication of a non-precious Fe2O3-CeO2/C electrocatalyst with a rich interfacial structure for the oxygen reduction reaction in alkaline electrolyte. The unique redox property of this catalyst gives it notable catalytic performance and stability, making it a promising candidate for oxygen reduction reaction.
CATALYSIS COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Keiji Shimoda, Kentaro Kuratani, Shunsuke Kobayashi, Tomonari Takeuchi, Miwa Murakami, Akihide Kuwabara, Hikari Sakaebe
Summary: Amorphous transition-metal polysulfides have potential applications as positive electrode materials in rechargeable lithium-ion batteries. This study investigates the redox reactions of sulfur anions during lithiation of amorphous TiS4 using experimental and theoretical methods. The results show the changes in sulfur valence states in the Li4TiS4 composition, and the conversion of a-TiS4 to metallic Ti and Li2S during deep lithiation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Manashi Sarmah, Debasish Sarmah, Anindita Dewan, Porag Bora, Purna K. Boruah, Manash R. Das, Pankaj Bharali, Utpal Bora
Summary: The Cu2O/Cu nanocatalyst was synthesized via a simple method using papaya peel extract, and it exhibited efficient catalytic activity in Pd-free Sonogashira and Chan-Lam cross-coupling reactions. Characterization techniques such as XRD and XPS confirmed the structure and formation of the catalyst.
Article
Electrochemistry
Kentaro Kuratani, Kazuhiro Fukami, Hiroaki Tsuchiya, Hiroyuki Usui, Masanobu Chiku, Shin-ichi Yamazaki
Summary: This paper describes the fundamentals of polarization measurement, including the current-potential curve and mass transfer. Additionally, the concept of polarization in corrosion reactions is explored.
Article
Electrochemistry
Hiroyuki Usui, Masanobu Chiku, Shin-ichi Yamazaki, Kentaro Kuratani, Kazuhiro Fukami, Hiroaki Tsuchiya
Summary: This paper discusses examples of polarization measurements using a battery, electric double-layer capacitor, and fuel cell, and describes the analysis of polarization in a real cell and the analytical methodology. The paper provides detailed examinations and discussions on rate capability and different rate properties. It also includes charge/discharge tests and self-discharge measurements for the electric double-layer capacitor, as well as detailed measurement conditions and data analysis methods for the fuel cell section. The contents mentioned in each section are highly useful for interpreting experimental data.
Article
Energy & Fuels
Bhugendra Chutia, Suranjana Patowary, Ashok Misra, Komateedi N. Rao, Pankaj Bharali
Summary: We report a controllable synthesis of Co3O4 nanooctahedron anchored on Vulcan XC 72R (Oct-Co3O4/C) for the bifunctional electrocatalysis of oxygen reduction and oxygen evolution reaction (ORR/OER) in alkaline electrolyte. The Oct-Co3O4/C exhibits remarkable activity, stability, and durability, which can be attributed to the crystal symmetry effects, high specific surface area, and rich oxygen vacancies in the octahedral structure.
Article
Electrochemistry
Kumar K. Hazarika, Bhugendra Chutia, Rabu R. Changmai, Purna K. Boruah, Manash R. Das, Pankaj Bharali
Summary: In this study, nanohybrids of various Fe-Co oxides anchored on to carbon matrix were systematically investigated for high-performing oxygen electrode reactions. Among them, Fe2.1Co0.9O4/C NH exhibited superior oxygen reduction reaction (ORR) performance compared to other compositions and benchmark Pt/C. Additionally, the Co3+ rich Fe0.9Co2.1O4/C NH demonstrated excellent oxygen evolution reaction (OER) performance. These electrocatalysts with bimetallic active sites and carbon matrix showed unique electrocatalytic properties, making them significant candidates for oxygen electrocatalysis.
Article
Chemistry, Physical
Ekaterina Matus, Olga Sukhova, Mikhail Kerzhentsev, Ilyas Ismagilov, Svetlana Yashnik, Vladimir Ushakov, Olga Stonkus, Evgeny Gerasimov, Andrey Nikitin, Pankaj Bharali, Zinfer Ismagilov
Summary: This study investigates hydrogen production through the bi-reforming of methane over exsolution-derived Ni catalysts. The performance and resistance to coking of the nickel-based catalysts are influenced by adjustments to the composition of the oxide matrix, which control their textural, structural, morphological, and redox properties. The preferred M-type and M/Ce ratio are crucial in determining the best performance of the catalysts.
Article
Energy & Fuels
Rashmi Chetry, Bhugendra Chutia, Suranjana Patowary, Biraj Jyoti Borah, Putla Sudarsanam, Pankaj Bharali
Summary: In this study, a homogeneously embedded Pd2CuCo alloy in the carbon matrix was synthesized. The as-synthesized Pd alloy electrocatalyst exhibited an improved limiting current density, a smaller Tafel slope, and a comparable onset potential compared to Pt/C. Moreover, the Pd2CuCo alloy electrocatalyst also demonstrated excellent methanol tolerance, higher activity, and long-term stability toward the formic acid oxidation reaction compared to Pd/C.
Article
Chemistry, Physical
Chiranjita Goswami, Biraj Jyoti Borah, Ruprekha Das, Kohei Tada, Shingo Tanaka, Igor P. Prosvirin, Ilyas Z. Ismagilov, Ekaterina Matus, Mikhail Kerzhentsev, Pankaj Bharali
Summary: Engineering metal/oxide interface and controlling composition are important strategies for efficient Pd-based electrocatalysts. In this study, Pd3M alloy nano-particles anchored on C-CeO2 (Pd3M/C-CeO2, M = Cu, Ni, Co) demonstrated significant performance in formic acid oxidation. The improved activity can be attributed to the electronic and synergistic effects between Pd and the alloyed metal, resulting in lattice contraction and downshift of d-band center. The presence of oxygen vacancies in CeO2 and strong Pd/CeO2 interactions also contribute to the overall electrocatalytic behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hirokazu Kitaura, Eiji Hosono, Misae Otoyama, Tomonari Takeuchi, Kentaro Kuratani, Motoshi Suyama, Minako Deguchi, Hiroe Kowada, Atsushi Sakuda, Akitoshi Hayashi, Masahiro Tatsumisago
Summary: To realize all-solid-state Li metal batteries, the development of a technology that effectively joins Li metal with inorganic solid electrolytes is crucial. This study investigated the use of the ultrasonic-assisted fusion welding process for joining Li metal and sulfide solid electrolytes, using amorphous Li3PS4 as the electrolyte. The process showed advantages over the conventional pressing process, with a close and void-free Li-Li3PS4 interface and comparable or superior electrochemical properties in Li symmetric cells.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Pangkita Deka, Ramesh Chandra Deka, Pankaj Bharali
Summary: A two-step strategy was used to synthesize three different mesoporous CuO nanocatalysts for the oxidative degradation of persistent organic water pollutants. The CuO nanocatalysts showed varied activity depending on synthesis parameters and textural properties, with higher reaction rates observed at increased temperatures. CuO synthesized from Cu(NO3)(2)center dot 3H(2)O exhibited higher catalytic activity compared to other precursors and showed good recyclability for five successive cycles.
INTERNATIONAL JOURNAL OF NANOTECHNOLOGY
(2021)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)