Article
Engineering, Chemical
Yang Jiao, Mengdi Liu, Qi Wu, Peijun Zheng, Wei Xu, Bangjiao Ye, Hongjun Zhang, Ruilan Guo, Shuangjiang Luo
Summary: In this study, high-performance polybenzimidazole (PBI) membranes were developed with well-defined microporosity and size-sieving ability for helium and hydrogen recovery. The incorporation of hierarchical triptycene units and polyprotic acid doping resulted in significantly enhanced gas permeability and selectivity compared to previous PBI membranes. The triptycene-based polybenzimidazole (TPBI) composite membranes exhibited the highest gas selectivities among existing polymeric gas separation membranes, making them highly attractive for helium and hydrogen separation.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Ting Qu, Jixiang Hu, Qiang Tan, Yan Liu, Yuanzhen Chen, Junjie Sun, Yongning Liu
Summary: H+-ion concentration cell with a fuel cell structure can convert thermal energy to electricity based on hydrogen concentration difference principle. Phosphoric acid-doped polybenzimidazole (PA-doped PBI) membrane, a key component, affects the power generation performance. Experimental evaluation shows that higher acid doping levels reduce dimensional stability, while thinner membranes have lower resistance to ion motion but poorer stability. Power densities of 3.0 to 8.0 W.m(-2) and thermoelectric conversion efficiencies of 5.97-14.32% can be achieved at 170 degrees C, promoting the practical application of thermal-to-electrical conversion technology.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Biochemistry & Molecular Biology
Leong Kok Seng, Mohd Shahbudin Masdar, Loh Kee Shyuan
Summary: The increasing global energy demand and depletion of fossil fuels have led to the exploration of sustainable and green energy sources, with high-temperature polymer electrolyte membrane fuel cells showing promise. Recent developments have highlighted the potential of phosphoric acid-doped polybenzimidazole membranes, but challenges with leaching and condensation have limited their application. The introduction of ionic liquids as new doping materials has shown promise in improving the performance of PA-PBI membranes in HT-PEMFC applications.
Article
Chemistry, Multidisciplinary
Yan Wang, Peng Sun, Zhongfang Li, Hui Guo, Hongchang Pei, Xiaoyan Yin
Summary: A series of composite membranes based on crosslinked mPBI with cerium 2,4,6-triphosphono-1,3,5-triazine (CeTPT) were successfully fabricated, showing good proton conductivity and thermal stability. The addition of new high-temperature proton conductor CeTPT, along with tetrafunctional crosslinker TGDDM, efficiently improved the mechanical properties, dimensional stability, and oxidative resistance of the membranes. These membranes exhibited high proton conductivity and good methanol resistance, making them suitable for direct methanol fuel cells.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Polymer Science
Gaae Yun, Seong Ku Kim, Insung Bae
Summary: The introduction of gadolinium-doped cerium oxide nanoparticles and hydrocarbon-based proton exchange membrane improves the physical and chemical stability of the membrane, enhances proton conductivity, and prevents membrane swelling.
Article
Chemistry, Physical
Lakshya Mathur, Aniket Kumar, In-Ho Kim, Hohan Bae, Jun-Young Park, Sun-Ju Song
Summary: A novel ceramic-polymer composite was developed, featuring a highly dense and stable proton-conducting electrolyte suitable for low temperature fuel cell (LTFC) application. This composite exhibited remarkable proton conductivity under different atmospheric conditions and was stable in terms of microstructure and ionic conductivity for up to 100 hours.
JOURNAL OF POWER SOURCES
(2021)
Article
Engineering, Chemical
Funda Arslan, Thomas Bohm, Jochen Kerres, Simon Thiele
Summary: This study demonstrates that confocal Raman microscopy can serve as a non-invasive measurement tool to investigate the status and progress of doping a membrane with phosphoric acid. The doping is shown to be a diffusion-limited process, resulting in a spatially inhomogeneous distribution of phosphoric acid unless doping is performed to saturation.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Energy & Fuels
S. Swathi, R. Yuvakkumar, P. Senthil Kumar, G. Ravi, M. Thambidurai, Cuong Dang, Dhayalan Velauthapillai
Summary: Gadolinium-doped cerium oxide (CeO2) was successfully synthesized and characterized, showing excellent HER and OER activity compared to pristine CeO2. The incorporation of rare earth metal influenced the structural and catalytic properties of CeO2, making it a promising candidate for energy conversion applications.
Article
Engineering, Environmental
Xiuying Yang, Honggang Zhen, Haozhou Liu, Chaojiu Chen, Yanjun Zhong, Xiushan Yang, Xinlong Wang, Lin Yang
Summary: This study proposes a new method for recycling graphite from spent lithium-ion batteries through phosphoric acid leaching-calcination. The modified graphite exhibits high-performance phosphorus-doped graphite and lithium phosphate products. This research provides a promising recovery route for exhausted lithium-ion battery anodes, enabling complete recycling.
Article
Energy & Fuels
Dedar Emad Hussin, Yagmur Budak, Yilser Devrim
Summary: In this study, PBI/BN composite membranes were prepared for high-temperature PEM fuel cells, with a study on the loading of BN and various characterizations and performance tests conducted. The PBI/BN-2.5 membrane showed the highest conductivity at 180 degrees Celsius, indicating potential for high-temperature PEMFC applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Keiichiro Maegawa, Yuya Ashida, Kazuhiro Hikima, Wai Kian Tan, Go Kawamura, Atsunori Matsuda
Summary: The effect of SnP2O7 microparticles incorporation on the performance of PBI-based membrane for fuel cells was investigated. Highly dispersed SnP2O7 microparticles derived from wet mechanochemical treatment resulted in a PBI-based composite membrane with high proton conductivity and superior acid retention property. This composite membrane achieved the highest peak power density under anhydrous conditions, showing the enhancement of high-temperature PEMFCs performance.
SOLID STATE IONICS
(2023)
Article
Polymer Science
Li-Cheng Jheng, Cheng-Wei Cheng, Ko-Shan Ho, Steve Lien-Chung Hsu, Chung-Yen Hsu, Bi-Yun Lin, Tsung-Han Ho
Summary: A quaternized polybenzimidazole (PBI) membrane was synthesized by grafting a dimethylimidazolium end-capped side chain onto PBI. The hybrid membrane exhibited lower swelling ratio, higher mechanical strength, and better oxidative stability compared to the pristine membrane, but the morphology conducive to ion transport was only successfully developed in the pristine membrane. Both membranes showed good alkaline stability at 80 degrees C and demonstrated promising power densities at 60 degrees C for fuel cell applications.
Article
Polymer Science
Danil D. Kolmanovich, Nikita N. Chukavin, Irina V. Savintseva, Elena A. Mysina, Nelli R. Popova, Alexander E. Baranchikov, Madina M. Sozarukova, Vladimir K. Ivanov, Anton L. Popov
Summary: Layer-by-layer self-assembled polyelectrolyte capsules have great potential in drug delivery and imaging contrast agent applications. This study presents the design of MRI-visible capsules loaded with gadolinium-doped cerium oxide nanoparticles, which showed high biocompatibility and cellular uptake efficiency in cancer cells and normal cells.
Article
Chemistry, Inorganic & Nuclear
Supeng Pei, Kangwei Xu, Xiaojun Xu, Guipeng Liu, Jialu Ma, Yingge Zhang, Yecheng Zou, Feng Liu, Yongming Zhang, Yongfeng Zhou
Summary: An effective bifunctional inorganic filler, TM-CeO2, was designed to enhance the stability and proton conductivity of PFSA-based proton exchange membranes. The composite membranes exhibited excellent mechanical strength, chemical stability, and proton conductivity. The introduction of TM and CeO2 provided proton conductivity and alleviated chemical deterioration, resulting in higher power density and lower decay rate in PEMFCs.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Pawan Kumar, Dharm Veer, Deshraj Singh, Aravind Kumar, Ram S. Katiyar
Summary: This study investigated the effect of adding CeP2O7 on the proton conductivity of (1-x)NaH2PO4.2H2O and found that adding CeP2O7 can improve the proton conductivity of the composite electrolyte. NaH2PO4.2H2O and cerium pyrophosphate have gained significant interest as proton conductors in intermediate-temperature fuel cells.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Editorial Material
Energy & Fuels
Dirk Henkensmeier
Summary: Fuel cells with acid-doped membranes can benefit from microporous membranes to confine acid, allowing for start-up without pre-heating, improved performance, and potentially extended lifetime.
Article
Chemistry, Physical
Rajesh Kumar, Ednan Joanni, Sumanta Sahoo, Jae-Jin Shim, Atsunori Matsuda, Wai Kian Tan, Rajesh K. Singh
Summary: This article provides a comprehensive overview of the fabrication and electrochemical performance of electrode materials for supercapacitors. It focuses on different-sized carbon nanomaterials and emerging fabrication technologies. The drawbacks of each electrode material, current technological challenges, and promising research directions are also discussed.
Article
Materials Science, Multidisciplinary
Dharmender S. Rana, Shiwani Kalia, Rajesh Kumar, Nagesh Thakur, Dilbag Singh, Rajesh K. Singh
Summary: In this research study, a heterostructure nanocomposite of reduced graphene oxide (rGO) and tungsten disulfide (WS2) separated by Fe3O4 nanoparticles was synthesized by microwave irradiation method for the detection of dopamine. The synthesized nanocomposite showed well-defined morphologies and crystallinity and exhibited low limit of detection and high sensitivity for dopamine.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Shiwani Kalia, Dharmender S. Rana, Nagesh Thakur, Dilbag Singh, Rajesh Kumar, Rajesh Kumar Singh
Summary: Epinephrine molecule is crucial in neurotransmission and its concentration changes can lead to neurological disorders. The synthesized nanocomposite rGO-MoS2@Fe3O4 shows improved electrocatalytic properties and good sensitivity in detecting epinephrine levels, making it a promising method for disease diagnosis.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Review
Materials Science, Multidisciplinary
Nitika Devi, Rajesh Kumar, Shipra Singh, Rajesh Kumar Singh
Summary: The unique two-dimensional structure of graphene with large surface area, high conductivity, and good stability has opened up a new era in science and technology. This review focuses on the advanced applications of graphene and its composites in various fields. It provides an introduction to graphene and the major concerns associated with different synthesis methods. The review also discusses the effects of the number of layers on graphene's performance. Furthermore, it summarizes the properties of graphene and its characterization techniques, and delves into its applications in energy storage/conversion.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(2022)
Review
Chemistry, Applied
Rajesh Kumar, Sumanta Sahoo, Ednan Joanni, Rajesh Kumar Singh
Summary: This article introduces the advantages of microwave heating in the processing of graphene-based electrode materials and provides a systematic overview of recent research on microwave-assisted processing, focusing on the preparation and modification of graphene derivatives for supercapacitors. Finally, the major challenges and future perspectives for microwave-assisted processing of graphene-based materials are summarized.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Sheeraz Mehboob, Ju-Young Lee, Jee Hun Ahn, Saleem Abbas, Xuan Huy Do, Jaewon Kim, Hyun-Jin Shin, Dirk Henkensmeier, Heung Yong Ha
Summary: In this study, multi-layered PANI-Nafion composite membranes with low vanadium ion permeability were successfully fabricated, which greatly improved the performance of VRFBs and preserved electric capacity almost perfectly. The fabricated membrane showed a high coulombic efficiency of 99% and an energy efficiency of 91% at 50 mA cm-2, outperforming the pristine Nafion 115 membrane. Moreover, it exhibited remarkable durability and capacity retention with a 100% discharge capacity retention over 100 cycles of charge/discharge operation.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Optics
Himani Thakur, Arvind K. Gathania, Santosh Kachhap, Sunil Kumar Singh, Rajesh Kumar Singh
Summary: The present work reports the coprecipitation synthesis and characterization of upconverting YPO4: Tm3+, Yb3+ phosphor. The structure and morphology of the synthesized phosphor were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and Scanning electron microscopy (SEM). The upconversion luminescence properties of the prepared phosphor were studied under near-infrared (NIR) 980 nm laser excitation. The optimized concentration of Tm3+ (0.3 mol%)/Yb3+(10 mol%) showed intense and sharp emission in the NIR (-796 nm) region.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Multidisciplinary
Dharmender S. Rana, Shiwani Kalia, Nagesh Thakur, Rajesh K. Singh, Rajesh Kumar, Dilbag Singh
Summary: In this paper, we reported a facile synthesis method of reduced graphene oxide-molybdenum disulphide (rGO-MoS2) nanocomposites for electrochemical detection. The nanocomposites exhibited well-defined morphology, crystallinity, and a two-dimensional flat structure, which enhanced the detection limit and sensitivity of the sensor.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Chemical
Malikah Najibah, Jimin Kong, Hamza Khalid, Jaromir Hnat, Hyun S. Park, Karel Bouzek, Dirk Henkensmeier
Summary: Membrane stability in electrolyzers is a challenge due to dimensional changes during assembly and wetting. Pre-swelling FAA3 membranes in aqueous ethylene glycol minimizes these changes. 50% EG swelling shows the smallest dimensional changes and improved conductivity. Treated membranes also perform better in the electrolyzer stability test.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Shiwani Kalia, Amena Salim, Ritu Bala, Rajesh Kumar Singh, Rahul Singhal, Rajnish Dhiman
Summary: The surface modifications of graphene oxide (GO) based thin films using ion irradiation were investigated. It was found that higher fluence of ion irradiation transformed the GO matrix into amorphous carbon, leading to segregation of the Au thin layer into island type structures. The thin ion beam-modified nanocomposites thin films show potential applications in surface-enhanced spectroscopy, optical filters, and plasmonic devices.
Review
Chemistry, Physical
David Aili, Mikkel Rykaer Kraglund, Sinu C. Rajappan, Dmytro Serhiichuk, Yifan Xia, Valadoula Deimede, Joannis Kallitsis, Chulsung Bae, Patric Jannasch, Dirk Henkensmeier, Jens Oluf Jensen
Summary: Water electrolysis for hydrogen production is crucial in achieving the green transition and developing sustainable fuels and materials. Alkaline water electrolysis is a key technology in this field as it is not limited by the scarcity of resources. However, the renewable energy system demands higher energy efficiency, rate capability, and operational capability. New electrode separators that can support high currents and suppress gas crossover are essential for these advancements.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Saleem Abbas, Sheeraz Mehboob, Hyun-Jin Shin, Syed Bilal Hasan Rizvi, Jaewon Kim, Dirk Henkensmeier, Heung Yong Ha
Summary: This study investigates the effect of various surface functional groups on the kinetics of vanadium redox reactions in vanadium redox flow batteries (VRFB) by using O2, CO2, N2, and NH3 plasmas to modify the surface chemistry of graphite felt electrodes. The results reveal that different surface functional groups have specific roles in the vanadium redox reactions on each side of a VRFB cell. The presence of certain groups, such as C=O and O-C=O, exhibit catalytic effects, while the C-O group inhibits the kinetics of negative and positive electrode reactions.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Md Shoriful Islam, Lakshya Mathur, Yeon Namgung, Bhupendra Singh, Jun -Young Park, Sun-Ju Song
Summary: Real-time monitoring and quantification of exhaust pollutants is crucial but difficult due to harsh conditions. In this study, BiVO4 nanoparticles are used to enhance the sensing performance in mixed-potential sensors. The results show that the nanoparticle decoration improves the microstructure and extends the triple phase boundary, resulting in higher sensitivity and faster response time. The fabricated sensor also exhibits good selectivity and stability.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Physics, Multidisciplinary
Shiwani Kalia, Ritu Bala, Devendra Jain, Himmat Singh Kushwaha, Rajesh Kumar Singh, Rajnish Dhiman
Summary: The antibacterial activity of silver decorated reduced graphene oxide (Ag-rGO) nanocomposites against E. coli was investigated. The study found that the hydrothermal treatment temperature affects the morphology, particle size, and antibacterial activity of the nanocomposites, with samples treated at 150 degrees C showing the highest activity.
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)
