Article
Engineering, Chemical
Jiwoo Lee, Jongmin Q. Kim, Hansol Ko, Inhyeok Hwang, Yoonki Lee, Kihyun Kim, Soonyong So, Siyoung Q. Choi
Summary: This study demonstrates a sub-20 nm ultrathin PFSA-g-GO/PFSA composite membrane with highly aligned ion channel morphology, which shows significant improvement in proton/vanadium ion selectivity and energy efficiency compared to traditional Nafion 211.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Environmental
Jianfeng Xu, Shu Dong, Pan Li, Wenhao Li, Feng Tian, Junran Wang, Qingqing Cheng, Zhouying Yue, Hui Yang
Summary: The development of a novel ether-free amphoteric ionic exchange membrane with long alkyl chains and zwitterionic groups shows high stability, low swelling ratio, and excellent proton conductivity. Compared to Nafion212 membrane, the optimized TA15-SPBP membrane exhibits higher ion selectivity and better electrical efficiencies.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Jun Long, Wenjie Xu, Shoubin Xu, Jun Liu, Yanlin Wang, Huan Luo, Yaping Zhang, Jinchao Li, Liangyin Chu
Summary: A novel double branched sulfonated polyimide (dbSPI) membrane with high proton selectivity and ultra-low vanadium ion permeability was successfully synthesized, showing much longer self-discharge time and superior capacity retention in VRFB single cell assembly compared to the Nafion 212 membrane. The optimized dbSPI-50 membrane also demonstrated higher coulomb efficiency and energy efficiency after 300 charge-discharge tests, making it a promising candidate for VRFB applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Jianfeng Xu, Hao Zhao, Wenhao Li, Pan Li, Chi Chen, Zhouying Yue, Liangliang Zou, Hui Yang
Summary: A facile strategy for fabricating a composite membrane based on Sulfonated poly(terphenylene) (SPTP) blended with Polybenzimidazole (PBI) is designed to address the long-term stability issues of cost-effective non-fluorinated membranes for Vanadium redox flow batteries (VRFBs). The introduction of PBI effectively mitigates the transportation of vanadium ions and reduces the swelling ratio of the membranes. The optimized membrane exhibits lower area resistance and vanadium permeability compared to Nafion117, resulting in superior coulombic and energy efficiencies for VRFBs.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Tae Yang Son, Kwang Seop Im, Ha Neul Jung, Sang Yong Nam
Summary: Blended anion exchange membranes prepared in this study showed lower vanadium ion permeability and self-discharge rate compared to commercial proton exchange membranes, making them a promising candidate for vanadium redox flow batteries.
Article
Energy & Fuels
Z. H. Zhang, L. Wei, M. C. Wu, B. F. Bai, T. S. Zhao
Summary: Utilizing chloride ions as additives in electrolytes can enhance the performance of vanadium redox flow batteries, especially with the optimum concentration. Adding chloride ions can improve the energy efficiency, rate capability, and cycle life of the batteries.
Article
Engineering, Chemical
Yu Xia, Yan Wang, Hongyan Cao, Shuhao Lin, Yongsheng Xia, Xiaoxuan Hou, Yulin Wu, Ying Yu, Kang Huang, Weihong Xing, Zhi Xu
Summary: In this study, a polymer with intrinsic microporosity (PIM) was successfully introduced into a highly sulfonated polyether ether ketone membrane, solving the issues of poor mechanical property and low vanadium resistance. This provides a new route for the preparation of high-performance ion exchange membranes for flow batteries.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Ting-Ting Wei, Fan-Fan Wang, Xue-Zhong Li, Jun-Hong Zhang, Yan-Rong Zhu, Ting-Feng Yi
Summary: This review summarizes the recent developments of TiO2 polymorphs with different crystalline structures as electrode materials for energy storage systems, discussing the synthesis routes, advantages, challenges, and application fields of TiO2 in various morphologies.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Article
Nanoscience & Nanotechnology
Muthumeenal Arunachalam, Alessandro Sinopoli, Farida Aidoudi, Stephen E. Creager, Rhett Smith, Belabbes Merzougui, Brahim Aissa
Summary: By synthesizing three specific copolymers and blending them with chitosan and polyvinylidene fluoride, the ion conductivity and water transport of alkaline anion exchange membranes were improved, enhancing their stability and making them excellent candidates for vanadium redox flow batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Song Yang, Xufeng Chu, Bing Xue, Teng Lv, Bencai Lin, Zhi-Hui Zhang
Summary: The study demonstrates that PEEK-based AEMs have lower vanadium ion permeability and higher chemical stability in VRFBs, especially the cross-linked CImPEEK, which shows superior performance in terms of Coulombic efficiency and capacity retention.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Sieun Jeon, Heeyeon An, Yongjin Chung
Summary: P-doped, O-rich graphitic carbon (POGC) with high catalytic activity and improved electrical conductivity was synthesized using an environmentally friendly microwave (MW)-assisted treatment. This treatment increased the graphitization degree and P-C bonds, resulting in enhanced redox reactions and reduced charge-transfer resistance. POGC combined with graphite felt (GF) electrodes showed improved efficiencies, discharge capacities, and long-cycle stability for vanadium redox flow batteries (VRFBs).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Jiachen Chu, Qingtan Liu, Wenhui Ji, Jianxin Li, Xiaohua Ma
Summary: High proton conductivity and low vanadium permeation have been challenges in designing efficient membranes for vanadium redox flow batteries. A series of novel microporous sulfonated polyimides (SPI) with gradient sulfonic acid group concentrations (6FTMA-X) were synthesized to overcome this trade-off. These membranes exhibited excellent ion sieving for proton and vanadium ions, leading to high energy efficiency under high current density. The results demonstrate the potential of 6FTMA-X membranes for VRFB applications and provide new insight for membrane design.
ELECTROCHIMICA ACTA
(2023)
Review
Energy & Fuels
Nana Zhao, Alison Platt, Harry Riley, Ruoxi Qiao, Roberto Neagu, Zhiqing Shi
Summary: Vanadium redox flow batteries (VRFBs) are the most promising and commercially exploited flow batteries for stationary electrical energy storage. However, there is a lack of ion exchange membranes (IEMs) with higher ion selectivity in the market. This review evaluates the requirements and various modification strategies for IEMs in VRFBs and provides recommendations for future exploration and optimization.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Jun Zhang, Mingshan Wang, Min Zeng, Xinpeng Li, Lin Chen, Zhenliang Yang, Junchen Chen, Bingshu Guo, Zhiyuan Ma, Xing Li
Summary: By synergistically combining sulfite modification and pre-intercalation of ammonium ions into vanadium hydrate, the new S-NVOH strategy significantly enhances the redox kinetics of Zn2+ in aqueous zinc ion batteries. The regulation of charge distribution in the V-O lattice and stabilization of the layered structure contribute to the improved exchange current densities and reduced reaction barriers during the Zn2+ redox process.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Yifeng Li, Longgang Sun, Liuyue Cao, Jie Bao, Maria Skyllas-Kazacos
Summary: A model-based approach was developed to determine the membrane permeability properties for the vanadium redox flow battery (VRB) system, estimating vanadium ion and water transfer coefficients through nonlinear optimization with measured half-cell potentials. Experimental studies were conducted to validate the effectiveness of the proposed method using two different membranes as examples. This simplified approach is useful for predicting battery capacity decay and scheduling regular maintenance activities such as electrolyte rebalancing.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Jongmin Q. Kim, Soonyong So, Hee-Tak Kim, Siyoung Q. Choi
Summary: The study developed an ultrathin PFSA membrane with highly aligned ion channels of reduced size, dramatically improving ion selectivity in vanadium redox flow batteries.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Physical
Seok Hyeon Kang, Jung-Kyu Jang, Hwan Yeop Jeong, Soonyong So, Sung-Kwon Hong, Young Taik Hong, Sang Jun Yoon, Duk Man Yu
Summary: In this study, a porous composite membrane based on polyacrylonitrile (PAN) and incorporating a phosphorus flame-retardant agent was fabricated for a heat-resistant and flame-retardant separator in lithium-ion batteries (LIBs). The membrane showed improved mechanical and thermal properties and exhibited excellent self-extinguishability, ensuring the high safety of LIBs. Additionally, the membrane demonstrated higher ionic conductivity and electrolyte uptake compared to a commercial polypropylene (PP) separator, making it a promising material for high-energy density and safe LIBs.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Sohee Kim, Jinok Yuk, Songmi Kim, Yuho Song, Sooyong So, Kyu Tae Lee, Tae-Ho Kim, Jae Hee Ham
Summary: In this study, advanced porous separators with thin selective skin layers were developed to reduce hydrogen permeation in alkaline water electrolysis applications. The optimized separator with a cPVA skin layer demonstrated a low ionic resistance, high bubble point pressure, and low hydrogen permeability, achieving high current densities in a 30 wt% KOH electrolyte solution.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Yeonbae Lee, Minjun Kim, Heein Kim, Keun Hyung Lee, Sangwon Kim
Summary: The development of reversible nanostructural associations in graft copolymer architecture has enabled the fabrication of tough polymer electrolyte composites that exhibit autonomous self-healing properties at room temperature. Random copolymers were used to form network structures, achieving remarkable mechanical properties and enabling its application in strain sensors.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Seung Jae Hong, Hwan Yeop Jung, Sang Jun Yoon, Keun-Hwan Oh, Seong-Geun Oh, Young Taik Hong, Duk Man Yu, Soonyong So
Summary: By incorporating highly water swellable sulfonated poly(arylene ether sulfone) ionomers into mechanically tough porous poly(tetrafluoroethylene), the dimensional change in proton exchange membranes used in fuel cells and water electrolyzers can be reduced, leading to enhanced chemical stability and long-term performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Soonyong So, Keun-Hwan Oh
Summary: In this study, catalyst ink was prepared using a dispersant with an HLB value of 17. The effects of ionomer-catalyst agglomerate size on ink rheological properties, CL microstructure, and electrochemical performance were investigated. The results showed that the smallest agglomerate size and low PDI were obtained with 1 wt% dispersant content, resulting in well-dispersed ink. The MEA based on the 1 wt% CL exhibited the highest performance due to increased number of channels and back pressure.
JOURNAL OF POWER SOURCES
(2023)
Article
Polymer Science
Eui Jin Ko, Eunju Lee, Jang Yong Lee, Duk Man Yu, Sang Jun Yoon, Keun-Hwan Oh, Young Taik Hong, Soonyong So
Summary: Research has found that introducing naphthalene into poly(arylene ether ketone) multi-block copolymers enhances the pi-pi interactions of the naphthalene units, resulting in high ion exchange capacity and polymerization yield. The naphthalene-containing copolymer membrane exhibits good hydrogen gas barrier property, chemical stability, and mechanical toughness, with a proton selectivity to hydrogen gas 3.6 times higher than Nafion 212. PEMWE single cells using this membrane perform better than Nafion 212, indicating that naphthalene-containing copolymer membranes are a promising replacement for PFSA membranes in PEMWE.
Article
Polymer Science
Seok Hyeon Kang, Hwan Yeop Jeong, Sang Jun Yoon, Soonyong So, Jaewon Choi, Tae-Ho Kim, Duk Man Yu
Summary: A new hydrocarbon-based composite membrane for proton exchange membrane water electrolysis (PEMWE) was developed using liquid crystal polymer (LCP)-nonwoven fabrics. The composite membrane showed outstanding mechanical properties and dimensional stability due to the physical interlocking structure between the sulfonated poly(arylene ether sulfone) copolymer (SPAES50) and LCP-nonwoven fabrics. The through-plane proton conductivity of the composite membrane was only 15% lower than that of the pristine membrane, and it exhibited superior cell performance with a smaller membrane resistance.
Article
Engineering, Environmental
SeungHwan Kim, Jaeheon Song, Bao Tran Duy Nguyen, JongMyeong Lee, JongGeun Seong, SangYong Nam, Soonyong So, Jeong F. Kim
Summary: The morphology of ion channels in ion exchange membranes has long been debated. In this study, we propose that hydrogen permeability data can provide insights into the connectivity and continuity of ion channels within hydrated membranes. We derived transport models and accurately predicted the hydrogen permeability of Nafion and BPSH membranes. By comparing hydrogen permeability between dry and hydrated membranes, we obtained semi-qualitative information about the controversial ion channel morphology, supporting the existence of discrete spherical clusters in the ion channels.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yi Sak Noh, Hwan Yeop Jeong, Tae-Ho Kim, Jaewon Choi, Jang Yong Lee, Soonyong So, Duk Man Yu
Summary: Proton exchange membranes (PEMs) need to be thin to minimize voltage loss in proton exchange membrane fuel cells and water electrolyzers. Maintaining their dimensional and mechanical stabilities is crucial for prolonging the lifespan of energy conversion devices used in moist environments. In this study, a mechanically robust and thin membrane was fabricated by impregnating a sulfonated poly(p-phenylene)-based (SPP) multiblock ionomer into a porous polytetrafluoroethylene (PTFE) substrate. The composite membrane showed enhanced dimensional stability, mechanical properties, and electrochemical performance compared to the pristine membrane.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Sang-Woo Jo, Ji Eun Park, Hwan Yeop Jeong, Miguhn Yuk, Soonyong So, Duk Man Yu, Jung-Kyu Jang, Hee-Tak Kim, Yong -Hun Cho, Tae -Ho Kim
Summary: This article presents the development of a multiblock copolymer for use as a proton exchange membrane in water electrolysis. The copolymer combines a hydrophilic block and a hydrophobic block, resulting in reduced water swelling, low hydrogen permeability, and excellent properties such as high proton conductivity and mechanical stability. A membrane electrode assembly using the copolymer achieved a high current density and long-term stability, highlighting its suitability for practical water electrolysis.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
Jaeheon Song, Chang Jin Lee, Soo-Hyung Choi, Sang Jun Yoon, Keun-Hwan Oh, Hong Kyoon Choi, Duk Man Yu, Young Taik Hong, Soonyong So
Summary: Sulfonated poly(p-phenylene) ionomers (SPP) are being considered as potential substitutes for perfluorinated sulfonic acid ionomers due to their excellent chemical stability. However, their practical application is limited by their relatively poor physical properties. In this study, a tetrafunctional prepolymer (t-PSK) was used to improve the mechanical characteristics of the ionomer and enhance its performance as a polymer electrolyte membrane for water electrolysis. The introduction of t-PSK increased the molecular weight of the ionomer but slightly decreased its modulus and tensile strength, primarily due to increased water uptake. The understanding of water uptake behavior and the importance of ionomer chain entanglements provided valuable guidance for further advancements in this field.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Jongmin Q. Kim, Yecheol Rho, Soonyong So, Siyoung Q. Choi
Summary: In this study, a highly ordered ultrathin PFSA membrane with hydrophilic domains was synthesized through morphology control. This membrane exhibited significantly improved ion-selectivity and vanadium redox flow battery cell performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Min Suc Cha, Ji Eun Park, Sungjun Kim, Sang-Hun Shin, Seok Hwan Yang, Seung Jae Lee, Tae-Ho Kim, Duk Man Yu, Soonyong So, Kang Min Oh, Yung-Eun Sung, Yong-Hun Cho, Jang Yong Lee
Summary: Here, we report a series of oligomeric chain extender-derived AEMs with increased molecular weights. These membranes showed excellent polymer main-chain stability as well as outstanding hydroxide conductivity, making them potentially useful in fuel cells and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
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)