Article
Chemistry, Physical
Peng Liang, Zeya Huang, Linhui Chen, Gang Shao, Hailong Wang, Hao Sun, Chang-An Wang
Summary: By engineering the current collector with a novel strategy, a deformable structure covered with a high electrical conductivity surface is achieved, which stabilizes interfacial stress and improves electrode performance in silicon anode batteries, solid-state batteries, and ionic liquid electrolyte batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Xiangxiang Wang, Kun Wang, Zefan Zheng, Zhengwei Wan, Jing Zhao, Han Li, Wei Jiang, Zhuoying Wu, Bao Chen, Yuanzhong Tan, Min Ling, Minghao Sun, Chengdu Liang
Summary: This study developed a novel inorganic binder, lithium metasilicate (LS), to address the issues of volume variation and limited Li+ diffusion ability in silicon anodes. The LS binder showed favorable compatibility with silicon nanoparticles (SiNPs) and improved the cycling stability and discharge capacity of the silicon anode through strong adhesion effect. The presence of Li+ transport channel within the LS binder further enhanced the Li+ diffusion ability in the silicon anode, resulting in higher discharge capacity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Qiuyan Li, Ran Yi, Yaobin Xu, Xia Cao, Chongmin Wang, Wu Xu, Ji-Guang Zhang
Summary: This study focuses on the design and failure analysis of a silicon (Si) anode for lithium-ion batteries (LIBs). The volumetric energy density of the Si anode depends heavily on factors such as Si/C loading, anode calendering density, first-cycle coulombic efficiency, and anode capacity density. Stable Si/C electrode structure is crucial for long-term cycling, and the degree of prelithiation needs to be balanced with cycle life.
JOURNAL OF POWER SOURCES
(2022)
Article
Nanoscience & Nanotechnology
Zhiming Zheng, Haowen Gao, Chengzhi Ke, Miao Li, Yong Cheng, Dong-Liang Peng, Qiaobao Zhang, Ming-Sheng Wang
Summary: A novel binder-grafting strategy was proposed to construct Si-CMC/PA electrodes with high reversible capacity and improved long-term cycling stability; in situ transmission electron microscopy revealed the binding effect of CMC/PA on the silicon anode, effectively preventing cracking; combined microscopy and X-ray photoelectron spectroscopy analysis unveiled the superior Li-ion storage performance origin of Si-CMC/PA electrodes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Er-Chieh Cho, Cai-Wan Chang-Jian, Yen-Ju Wu, Szu-Han Chao, Jen-Hsien Huang, Kuen-Chan Lee, Huei Chu Weng, Shih-Chieh Hsu
Summary: The study demonstrates that using graphene-modified Al foils in lithium ion batteries can improve charge/discharge performance and cycling stability.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Zhiwen Wang, Dong Cao, Mingxi Ren, Hanning Zhang, Limei Pan, Chuanfang John Zhang, Jian Yang
Summary: A Si@Ti3C2Tx composite with a fluffy and porous structure was prepared using a simple suspension mixing-freeze drying process, which can effectively improve the stability and cycling efficiency of silicon nanoparticles in lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Materials Science, Multidisciplinary
Bingxin Zhou, Arman Bonakdarpour, Ivan Stosevski, Baizeng Fang, David P. Wilkinson
Summary: The energy density of lithium metal batteries could be much higher than that of current graphite anode-based LIBs. However, dendritic lithium growth and unstable solid-electrolyte interface are challenges. Modifications of the commonly used copper current collector have been investigated to improve battery performance.
PROGRESS IN MATERIALS SCIENCE
(2022)
Review
Chemistry, Physical
Yanxiu Liu, Rong Shao, Ruiyu Jiang, Xinyu Song, Zhong Jin, Lin Sun
Summary: Silicon anodes have been extensively studied as a potential alternative to graphite ones for Li-ion batteries, but their commercial application is limited by poor structural and interfacial stability. Designing robust conductive binder networks is a key strategy to fully exploit the capacity potential of Si-based anodes. This review summarizes existing binders for Si anodes, focusing on three-dimensional and multifunctional polymeric binders with excellent electrical conductivity, flexibility, and adhesion, which are expected to accelerate the practical application of silicon anodes. Suggestions for future development of Si anodic binders are also provided.
Review
Chemistry, Physical
Yanxiu Liu, Rong Shao, Ruiyu Jiang, Xinyu Song, Zhong Jin, Lin Sun
Summary: Silicon anodes have been extensively studied as a potential alternative to graphite ones for Li-ion batteries. However, their commercial application is limited by the issues of the poor structural and interfacial stability. In this review, the focus is on the design of robust conductive binder networks to fully exploit the capacity potential of Si-based anodes.
Review
Engineering, Environmental
Hyebin Jeong, Jooyoung Jang, Changshin Jo
Summary: This article summarizes the role of the current collector (CC) in battery systems and the problems that exist, with a particular focus on coating methods as a new approach for CC modification. It analyzes the applications of different coating materials and methods in state-of-the-art battery systems.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Zeyu Zhang, Shixiong Sun, Wen Zhang, Jia Xu, Xin Wang, Chun Fang, Qing Li, Jiantao Han
Summary: A watermelon-like core-buffer-shell Si/electrochemically exfoliated graphene/C (Si/EG/C) composite was prepared using ball milling and spray drying. The composite exhibited excellent electrochemical performance due to the presence of folds and voids in the graphene layer, which buffered the volume fluctuations of the silicon core and facilitated fast lithium ion transport. It has potential applications in the next generation of Li-ion batteries.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Junchao Zhu, Hui Wang, Rongying Lin
Summary: The Si@SnO2 material with a coating structure effectively alleviates the volume expansion stress of silicon and improves its electrical conductivity, resulting in excellent electrochemical performance.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Hongshan Wei, Liyong Niu, Xiaohua Zhou, Yunru Zhang, Liwen Zhong, Yu Yang, Xiaoyuan Yu
Summary: Due to its high capacity and availability, silicon anode is a promising option for high-energy-density lithium-ion batteries. However, its volume expansion and low conductivity limit its practical applications. In this study, a SiOx/Si with good dispersion was synthesized and then coated with carbon to form a SiOx/Si/C composite. The optimized composite exhibited high specific capacity, excellent cyclability, and structural stability. This work provides a new idea for the design of future lithium-ion battery anode materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Nam-Kyu Lim, Eun-Kyung Kim, Jin-Ju Park, Su-Jong Bae, Sanghyeon Woo, Jae-Hak Choi, Woo-Jin Song
Summary: The use of polysaccharide-based 3D cross-linked network binders can effectively prevent the volume expansion of Si anodes and provide enhanced adhesion strength, resulting in the fabrication of electrodes with outstanding performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Yan Li, Guangyu Chen, Huaixiang Yang, Xiaobing Geng, Zhuo Luo, Chentong Zhang, Liuqing Huang, Xuetao Luo
Summary: The application of photovoltaic solid waste as an effective solution for waste disposal in lithium-ion batteries not only solves the problem of environmental pollution but also avoids the loss of secondary resources. A simple and environmentally friendly method was designed to synthesize P-Si@SiOx/Ag/CN as an anode material for lithium-ion batteries, which exhibited outstanding cycling performance and rate capability. This work opens up a new economic strategy for the fabrication of high-performance silicon anodes and affords a promising avenue for the recycling of PV silicon waste.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Applied
Lucie Blondeau, Suzy Surble, Eddy Foy, Hicham Khodja, Magali Gauthier
Summary: A composite In-Pb:carbon was synthesized using a two-step mechanochemical process to investigate the electrochemical reactivity of the In-Pb solid solution towards Mg. The coupling effect of electroactive elements In and Pb was examined, showing the potential formation of Mg2Pb and MgIn in the solid solution. However, a peculiar electrochemically-driven amorphization of MgIn during magnesiation was observed, which differed from previous studies on In-based and InBi-based electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Jianhan Xiong, Nicolas Dupre, Philippe Moreau, Bernard Lestriez
Summary: This study successfully visualized the polymer binder in silicon-based electrodes using a specific electrolyte solvent composition and advanced microscopy techniques, laying the foundation for high-performance lithium-ion batteries for electric vehicle applications.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Analytical
Mouad Essani, Jean-Yves Mevellec, Baptiste Charbonnier, Philippe Moreau, Hilel Moussi, Pierre Weiss, Jean Le Bideau, Maxime Bayle, Bernard Humbert, Patricia Abellan
Summary: The development of instruments combining multiple characterization and imaging tools has driven advancements in material science, engineering, biology, and other related fields. This study reports the use of a cryo-FIB-SEM-mu Raman instrument to assess the accuracy of cryo-fixation methods for studying vitreous materials with high water content, providing a reliable approach to avoid imaging artifacts.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Magali Gauthier, Stephanie Belin, Lucie Blondeau, Suzy Surble, Eddy Foy, Hicham Khodja
Summary: Operando and in situ techniques are increasingly important for studying batteries. This study highlights the potential harm of operando measurements using synchrotron techniques on battery operation, specifically in the case of Mg batteries. It emphasizes the need for caution when designing and interpreting operando data, especially for new battery chemistries.
ANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Chemical
Helene Roberge, Philippe Moreau, Estelle Couallier, Patricia Abellan
Summary: This study used scanning electron microscopy combined with focused ion beam to analyze the structural features determining the filtration performance of commercially available polyacrylonitrile (PAN) UF and polyethersulfone (PES) MF membranes at the nanometer scale. The results provide key information about the structural parameters of the selective layer and the percentage of blind pores, and suggest that current models are insufficient to fully describe asymmetric membranes with thin selective layers.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Lucas Huet, Philippe Moreau, Nicolas Dupre, Thomas Devic, Lionel Roue, Bernard Lestriez
Summary: The physical crosslinking of polymeric binders through coordination chemistry improves the electrochemical performance of silicon-based negative electrodes by stabilizing the electrode and the solid electrolyte interphase (SEI) layer. Scanning electron microscopy coupled with energy dispersive X-ray spectroscopy reveals the homogeneous coordination of carboxylated binder with Zn cations and its layering on the silicon surface. The SEI formed after the first cycle is denser with Zn-coordinated binder and preferentially observed on binder-depleted zones. This results in a lower SEI impedance, a higher first cycle coulombic efficiency, and a 40% improvement of capacity retention after 50 cycles for highly loaded electrodes of over 6 mAh cm(-2).
Article
Nanoscience & Nanotechnology
Angelica Laurita, Liang Zhu, Pierre-Etienne Cabelguen, Jeremie Auvergniot, Jonathan Hamon, Dominique Guyomard, Nicolas Dupre, Philippe Moreau
Summary: In this study, advanced microscopy and spectroscopy techniques were used to investigate the surface of Ni-rich layered transition metal oxides. The results demonstrate that even under usual storage conditions after synthesis, the surface of the material is chemically different from the nominal values.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yanis Levieux-Souid, Jean-Frederic Martin, Philippe Moreau, Nathalie Herlin-Boime, Sophie Le Caer
Summary: Understanding aging phenomena in batteries is crucial for designing efficient, safe, and reliable energy storage devices. This study demonstrates that radiation chemistry can be used as a valuable tool to screen the behavior of electrolytes within a few hours, yielding similar performance ratings to electrochemical cycling. Controlled irradiation can predict battery cycling behavior and propose mechanisms involved in the degradation processes of different electrolytes.
Article
Nanoscience & Nanotechnology
Lucas Huet, Driss Mazouzi, Philippe Moreau, Nicolas Dupre, Michael Paris, Sebastien Mittelette, Danielle Laurencin, Thomas Devic, Lionel Roue, Bernard Lestriez
Summary: This study proposes a simple and versatile method for preparing Zn(II)-poly(carboxylates) reticulated binders, which significantly improve the electrochemical performance of silicon-based negative electrodes. The formation of carboxylate-Zn(II) coordination bonds is investigated, and mechanical characterizations reveal better cohesion, adhesion, hardness, and elastic modulus of the coordinated binder. Operando dilatometry experiments show reduced electrode expansion and improved capacity retention of over 30% after 60 cycles for the coordinatively reticulated electrodes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Physical
Nassima Kana, Kaouther Touidjine, Sarah Olivier-Archambaud, Effrosyni Gkaniatsou, Michael Paris, Nicolas Dupre, Nicolas Gautier, Philippe Moreau, Clemence Sicard, Bernard Lestriez, Thomas Devic
Summary: Silicon is a promising alternative to graphite for lithium-ion battery negative electrodes due to its high capacities. Coating silicon particles with metal-organic frameworks (MOFs) has shown improved electrochemical performance. However, a 20 nm thick layer of MOF on the surface of silicon particles did not result in significant modifications of the electrochemical performance in practical electrode loading conditions.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Lucas Huet, Driss Mazouzi, Philippe Moreau, Nicolas Dupre, Michael Paris, Sebastien Mittelette, Danielle Laurencin, Thomas Devic, Lionel Roue, Bernard Lestriez
Summary: This study proposes a simple and versatile method for preparing Zn(II)-poly(carboxylates) reticulated binders by adding Zn(II) precursors into a preoptimized poly(carboxylic acids) binder solution. These binders significantly improve the electrochemical performance of silicon-based negative electrodes. The formation of carboxylate-Zn(II) coordination bonds is investigated using rheology and spectroscopic techniques. Mechanical characterizations show that the coordinated binder offers better electrode coating cohesion and adhesion, as well as higher hardness and elastic modulus, even in the presence of a carbonate solvent. Operando dilatometry experiments demonstrate that the electrode expansion during lithiation is reduced, mitigating electrode mechanical failure. These coordinatively reticulated electrodes outperform their uncoordinated counterparts with an improved capacity retention of over 30% after 60 cycles.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Angelica Laurita, Liang Zhu, Pierre-Etienne Cabelguen, Jeremie Auvergniot, Dominique Guyomard, Philippe Moreau, Nicolas Dupre
Summary: Li-7 MAS NMR quantification of lithiated species reveals increased Li extraction during electrode preparation process. The study also suggests a new reaction involving Li2O as reagent and the formation of LiF in the degradation of PVdF binder.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Morgane Denis, Hubert Chevreau, Pablo Salcedo-Abraira, Philippe Moreau, Nicolas Dupre, Michael Paris, Philippe Poizot, Thomas Devic
Summary: Recently, metal-organic frameworks (MOFs) that combine organic and inorganic redox-active moieties have attracted attention in electrochemical energy storage. In this study, we focused on MIL-53(M) (M = Al, Fe) analogues based on 2,5-dioxo-1,4-benzenedicarboxylate, as this ligand has shown interesting electrochemical activity in the solid state. We attempted to chemically lithiate the title solids through various synthetic paths and characterized the resulting solids using several techniques. We found that the lithiation process differed significantly for M = Al and Fe, and evaluated the electrochemical extraction/uptake of Li+ in the lithiated derivatives. Although their storage capacities were moderate, the presence of a minor amount of M3+ cations improved the long term capacity retention.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Helene Roberge, Philippe Moreau, Estelle Couallier, Patricia Abellan
Summary: Detailed structural characterization of fouling in membranes is crucial for understanding filtration performance. Electron microscopy combined with labeling techniques can differentiate biomolecules, but specific protocols for differentiating biomolecules in fouled membranes are challenging due to the need for preserving membrane state and the inability of probes to penetrate fouled membranes. This study presents a heavy metal staining technique compatible with cryofixation to identify and differentiate biomolecules in fouling. The technique enhances contrast and reveals the strong interaction between proteins and lipids in fouling.
MICROSCOPY AND MICROANALYSIS
(2023)
Article
Chemistry, Physical
Irshad Mohammad, Lucie Blondeau, Eddy Foy, Jocelyne Leroy, Eric Leroy, Hicham Khodja, Magali Gauthier
Summary: The sodiation of a nanostructured InSb intermetallic compound showed remarkable performance in terms of capacity, cycling stability, and high-rate behavior in sodium-ion batteries. Combining In with Sb was found to enhance the material's stability during cycling, alleviating volume expansion and mechanical stress. Studies on surface chemistry and electrochemical stability behavior further confirmed the potential of InSb compound as a promising electrode material.
SUSTAINABLE ENERGY & FUELS
(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)
