Article
Chemistry, Physical
Yanbo Chen, Fei Xu, Jing Li, Yuyang Han, Junjie Qiao, Jie Liu, Yao Xu, Bencai Lin
Summary: Poly(fluorenyl terphenyl piperidinium) (PFTP) with an aromatic backbone was synthesized to produce proton exchange membranes (PEMs) with robust mechanical properties. The introduction of propanesulfonic acid side chains enhanced the phosphoric acid (PA) adsorption capacity and proton conductivity of the resulting sulfonated PFTP (SPFTP-x) membranes. These membranes exhibited good thermal, oxidization, and dimensional stabilities, and the SPFTP-x membranes showed higher PA adsorption capacity and higher proton conductivity than the PFTP membrane. A single cell assembled with SPFTP-50 exhibited a maximum power density of 280 mW cm-2 at 100 degrees C, indicating the promising application of SPFTP-x as a membrane material for high-temperature proton membrane fuel cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Mohd Hilmi Mohamed, Hamid Ilbeygi, Juhana Jaafar, Madzlan Aziz, M. H. D. Othman, Mukhlis A. Rahman
Summary: This study successfully developed a high-performance proton exchange membrane using hybrid mesoporous siliceous phosphotungstic acid (mPTA-Si) and sulfonated poly ether ether ketone (SPEEK). The incorporation of mPTA-Si improved the water uptake and proton conductivity of the membrane, resulting in a significant increase in power density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Energy & Fuels
Nur Ain Masleeza Harun, Norazuwana Shaari, Nik Farah Hanis Nik Zaiman
Summary: SPEEK is recognized as a promising alternative PEM in fuel cell applications due to its advantageous properties, but its proton conductivity is influenced by the degree of sulfonation. While high DS of SPEEK can produce high proton conductivity, excessive production of DS may have side effects on membrane stability. Therefore, finding the optimal DS of SPEEK is crucial for fabricating PEM alternatives.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Chemical
Mamta Kumari, John C. Douglin, Dario R. Dekel
Summary: A series of mechanically robust and highly conducting crosslinked anion-exchange membranes were synthesized using quaternary phosphonium-functionalized poly(ether ether ketone) (QPPEEK) as the base polymer and poly(ethylene glycol) (PEG) as the crosslinker. Among different compositions, the QPPEEK-PEG 20 membrane showed the best properties with high hydroxide conductivity, good mechanical strength, and flexibility. This crosslinked membrane was chemically stable in alkaline environment and performed well in anion-exchange membrane fuel cell applications, indicating the potential of PEEK-based membranes for such applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Funda Arslan, Khajidkhand Chuluunbandi, Anna T. S. Freiberg, Attila Kormanyos, Ferit Sit, Serhiy Cherevko, Jochen Kerres, Simon Thiele, Thomas Boehm
Summary: A new ion-pair-coordinated membrane (IPM) system with quaternary ammonium groups for high-temperature proton-exchange membrane fuel cells is introduced, showing reduced swelling and better mechanical properties upon doping. The best-performing IPM-based HT-PEMFC achieves higher power density compared to conventional PBI membranes, making them promising candidates for application in this field.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Ting Wang, Yaping Jin, Tong Mu, Tingting Wang, Jingshuai Yang
Summary: In this study, a DMBP-TB/PEKC/PA blend membrane with high conductivity and mechanical strength was successfully prepared by synthesizing TB polymer and doping with engineering thermoplastic PEKC. This provides a potential solution for the application of high temperature proton exchange membrane fuel cells.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Energy & Fuels
Syarifah N. S. S. Daud, Muhammad N. A. M. Norddin, Juhana Jaafar, Rubita Sudirman
Summary: Hot-pressing was used to integrate PEM and AEM into BPM, with sPEEK/PES and cQAPEEK as the electrolytes. The central composite design of response surface methodology was employed to analyze the effect of hot-press conditions on membrane adhesion and properties. The optimized temperature and gauge pressure were found to be 120 degrees C and 3 tonnes/square inch, resulting in a high power density for the sPEEK/PES-cQAPEEK BPM.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Environmental
Pradip Das, Bishnupada Mandal, Sasidhar Gumma
Summary: This study involves the synthesis of amino acid grafted nanocomposites as proton exchange membranes for direct methanol fuel cells and assessing their selectivity. The results show significant improvement in blocking methanol and enhanced conductivity of the composite membrane after modification.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Physical
Minghan Xu, Hao Xue, Qingfu Wang, Lichao Jia
Summary: Proton exchange membrane fuel cells (PEMFCs) are potential clean energy sources attracting attention, with a focus on developing high-performance, low-cost PEMs to replace benchmark Nafion membranes. Sulfonated poly(arylene ether ketone)s (SPAEKs) and sulfonated poly(arylene ether sulfone)s (SPAESs) are promising candidates due to their performance and cost advantages. Efforts are classified and introduced in developing SPAEK and SPAES membranes for promising research directions in the field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Mesut Yilmazoglu
Summary: This study synthesized and characterized solid polymer electrolytes derived from sulfonated poly(ether ether ketone) and a Bronsted acidic ionic liquid. By incorporating different amounts of ionic liquid with sulfonated polymer matrices, the efficiency of the interaction was examined. The results showed that sPEEK(1.0)-2 sample exhibited maximum proton conductivity and thermomechanical stability under anhydrous environment, opening up new prospects for electrochemical applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Funda Arslan, Jens Dirsch, Maximilian Wagner, Anna T. S. Freiberg, Miriam Komma, Jochen Kerres, Simon Thiele, Thomas Bohm
Summary: In this study, the influence of the phosphonation degree (40-95%) of the ionomeric binder PWN on the performance of high temperature proton exchange membrane fuel cells (HT-PEMFCs) was investigated. It was found that PWN can significantly improve peak power density, activation overpotential, and reproducibility in the mass transport region. Moreover, PWN with a lower phosphonation degree showed better performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Polymer Science
Prem P. Sharma, Vo Dinh Cong Tinh, Dukjoon Kim
Summary: Enhancement in ion cluster size of sulfonated poly (arylene ether sulfone) (SPAES)-based membranes was successfully achieved by encapsulating basic pendent branches as side groups, leading to improved proton conductivity and excellent chemical stability. The synthesized hybrid membrane demonstrated potential application in electrochemical and proton exchange membrane fuel cell applications with stable performance.
Article
Environmental Sciences
D. Vidhyeswari, A. Surendhar, S. Bhuvaneshwari
Summary: By incorporating CNTs into the SPEEK membrane, the composite membrane shows improved properties, including water uptake capacity and ion exchange capacity. The power density of the composite membrane is 2 times higher than that of the pristine membrane. The composite membrane with 0.75% CNT-SPEEK exhibits the highest power density.
Article
Polymer Science
Maryam Oroujzadeh, Shahram Mehdipour-Ataei
Summary: Two series of sulfonated poly(ether sulfone ketone)s were synthesized, and the effect of different ratios of sulfone: ketone functional groups on membrane properties was studied. Membranes with higher sulfone content exhibited lower density, higher water absorption, and swelling ratio values.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Chemistry, Applied
Seung-Young Choi, Kyeong Sik Jin
Summary: Prolonged hydrothermal treatment of sulfonated poly(ether ether ketone) membranes induces mechanical degradation and hydrophilic-hydrophobic phase separation, affecting proton conductivity and device stability. Aging processes through hydration-dehydration cycling and prolonged hydrothermal treatment lead to different changes in nanostructure and properties of the membranes. Fuel cell performance shows significant differences between the two aged membranes, with hydration-dehydration cycling leading to better durability.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Polymer Science
Xuefeng Li, Haidan Lin, Hao Jiang, Yizhu Zhang, Binghui Liu, Yinan Sun, Chengji Zhao
Summary: This study prepared a series of sustainable epoxy resin/diatomite composites with synthetic bio-based matrix resin and silanized natural diatomite filler, showing significantly improved mechanical and thermal stability after the incorporation of diatomite.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Engineering, Electrical & Electronic
Zhuang Zhuang, Yunfeng Li, Xifang Li, Chengji Zhao
Summary: A novel humidity sensor based on polymer-salt complexes was developed in this study. By introducing PEG flexible segments into PEEK-co-PEG copolymers, the hysteresis effect of humidity sensors can be significantly reduced, and by doping LiCl, the sensitivity and response speed of the sensors can be improved.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Physical
Xingtong Pu, Yuting Duan, Jialin Li, Chunyu Ru, Chengji Zhao
Summary: Sulfonated hydrocarbon polymers have been studied as proton exchange membranes in fuel cells, with SPAEK-TM demonstrating superior performance and durability as an ionomer in catalyst layers. The SPAEK-TM-based membrane electrode assembly exhibits excellent morphology and active electrochemical surface area, with superior power density and lower degradation compared to Nafion-MEA. Incorporating SPAEK-TM ionomer effectively inhibits methanol permeability in direct methanol fuel cells.
JOURNAL OF POWER SOURCES
(2021)
Article
Nanoscience & Nanotechnology
Jialin Li, Xuzhou Tian, Chunlei Xia, Yuting Duan, Yi-Nan Sun, Binghui Liu, Liming Wu, Chunyu Ru, Shi-Tong Zhang, Chengji Zhao
Summary: By regulating the polarity of hydrophobic domains, the aggregation and connection of hydrophilic ion clusters during membrane formation were indirectly varied, enabling orderly self-assembly and homogeneously distributed microphase structures.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Yuting Duan, Chunyu Ru, Jialin Li, Yi-nan Sun, Xingtong Pu, Binghui Liu, Bohao Pang, Chengji Zhao
Summary: The MNCS functionalized MOF showed promising potential in improving proton conductivity and power density in direct methanol fuel cells, due to its unique structure and interaction with the SPAEK membrane. The incorporation of MNCS in the hybrid membranes enhanced proton transport channels and overall membrane performance, demonstrating significant improvements over pristine membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Gang Wang, Jialin Li, Haibin Li, Haibo He, Liang Zhai, Xiang Li, Tingting Li, Chengji Zhao, Lixin Wu, Haolong Li
Summary: In this study, robust high-temperature proton exchange membranes (PEMs) were fabricated based on the in situ electrostatic crosslinking of polyoxometalates and polymers. A comb copolymer poly(ether-ether-ketone)-grafted-poly(2-ethyl-2-oxazoline) (PGE) with transformable side chains was complexed with H3PW12O40 (PW) by electrostatic self-assembly, forming PGE/PW nanocomposite membranes with bicontinuous nanostructures. Subsequent PA-treatment resulted in PGE/PW/PA ternary nanocomposites with in situ electrostatic crosslinking effect, exhibiting excellent anhydrous proton conductive ability and high mechanical performance.
CHINESE CHEMICAL LETTERS
(2023)
Article
Engineering, Chemical
Yuting Duan, Chunyu Ru, Yang Pang, Jialin Li, Binghui Liu, Chengji Zhao
Summary: Reinforcing Nafion membrane with a crosslinked quaternized poly (arylene ether ketone) (PAEK) nanofiber mat can overcome the issue of severe methanol crossover in DMFCs, allowing for the use of highly concentrated methanol solutions.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Minghao Zeng, Wenqi Liu, Haikun Guo, Tingting Li, Qijia Li, Chengji Zhao, Xiaojin Li, Haolong Li
Summary: This study presents a strategy to prepare high-temperature proton exchange membranes (HT-PEMs) using polyoxometalate (POM)-dominated noncovalent cross-linking and H3PO4-induced post-assembly. The resulting membranes exhibit excellent mechanical strength and proton conductivity, making them suitable for high-temperature supercapacitors and fuel cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Binghui Liu, Tingting Li, Qijia Li, Siyuan Zhu, Yuting Duan, Jialin Li, Haiqiu Zhang, Chengji Zhao
Summary: By introducing hydrophilic groups into the polymer, the dimensional stability and ion selectivity of cross-linked anion exchange membranes can be effectively improved.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Tiantian Xie, Yang Pang, Hang Fan, Shiyang Zhu, Chengji Zhao, Shaowei Guan, Hongyan Yao
Summary: In this study, a molecular engineering strategy was used to optimize the microphase morphology of sulfonated polyimides (SPIs) by changing the molecular structure and volume of hydrophobic cross-linkable diamine and introducing a hydrophobic network structure. Three cross-linked SPIs with similar ion-exchange capacity but different main-chain structures were prepared. It was found that the membranes with larger molecular volume and containing hydrophobic structural units exhibited more pronounced phase separation morphology and higher proton conductivity. Among them, CSPI-AP-10 showed the best performance, with high proton conductivity and excellent methanol resistance. The CSPI-AP-10 membranes assembled into direct methanol fuel cells (DMFCs) demonstrated high power density in both 2 M and 10 M methanol solutions. CSPI-AP-10 is considered a promising candidate as a polymer electrolyte membrane for DMFC applications.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
Shasha Tang, Haidan Lin, Kai Dong, Jun Zhang, Chengji Zhao
Summary: This paper presents a novel guaiacol-based epoxy resin prepared from renewable resources, which showed good thermal stability and mechanical properties. The carbon fiber reinforced composites using this resin could be efficiently dissolved and recycled in a closed loop, without altering the carbon fibers. This work contributes to the development of guaiacol-based renewable functional materials and provides a feasible and economical way for recycling and reprocessing carbon fiber reinforced epoxy composites.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Chemistry, Multidisciplinary
Yuting Duan, Yang Pang, Binghui Liu, Liming Wu, Xinyue Hu, Qijia Li, Chengji Zhao
Summary: In this study, a CeO2-anchored bifunctionalized metal-organic framework (CeO2-MNCS) was prepared and used as a synergistic filler to modify the Nafion matrix. The hybrid membranes demonstrated high proton conductivity and durability, achieving a high power density and low OCV decay ratio. This study provides an effective strategy to develop highly durable proton exchange membranes without sacrificing proton conductivity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Chemical
Yang Pang, Yuting Duan, Qijia Li, Binghui Liu, Qian Liu, Chengji Zhao
Summary: Membrane durability is a crucial factor for the development of proton exchange membrane fuel cells. By incorporating hindered amine radical scavengers, the performance and durability of the membrane can be significantly improved, resulting in enhanced proton conductivity and mechanical strength.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
Yurong Zhang, Haidan Lin, Kai Dong, Shasha Tang, Chengji Zhao
Summary: A series of epoxy resins containing trifluoromethyl groups were synthesized and cured with diaminodiphenylmethane (DDM) and aminophenyl sulfone (DDS). The epoxy resins exhibited excellent thermal stability, with high glass transition temperatures and weight loss temperatures. DDS-cured epoxy resins had higher thermal stability, while DDM-cured epoxy resins showed better mechanical, dielectric, and hydrophobic properties. The results suggest that incorporating trifluoromethyl pendant groups into epoxy resins can improve their dielectric and hydrophobic performance.
Article
Engineering, Chemical
Xinyue Hu, Yue Ao, Yuetong Gao, Binghui Liu, Chengji Zhao
Summary: In this work, a novel class of phosphoric acid (PA) doped high temperature proton exchange membranes (HT-PEMs) based on triazole-functionalized poly(arylene perfluorophenyl)s were developed. These membranes exhibited high proton conductivity, low swelling, and superior oxidation stability, making them promising for application in high temperature proton exchange membrane fuel cells.
JOURNAL OF MEMBRANE SCIENCE
(2023)
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)