Article
Chemistry, Physical
Jingfeng Zheng, Luke Schkeryantz, Gerald Gourdin, Lei Qin, Yiying Wu
Summary: Potassium batteries have attracted considerable attention from researchers, with traditional liquid electrolytes raising safety concerns. A new single potassium-ion conducting polymer, KPSTFSA, was synthesized to address this issue, showing high ionic conductivity and potassium ion transference number compared to traditional electrolytes. The electrochemical stability of the polymer gel electrolyte was studied systematically, revealing the instability of the polystyrene structure of KPSTFSA.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Sushovan Shrestha, Jongbeon Kim, Jejun Jeong, Hye Jin Lee, Seul Cham Kim, Hoe Jin Hah, Min-Sang Song, Kyuhwan Oh, Se-Hee Lee
Summary: In this study, a polyacrylonitrile (PAN) coating is applied on the surface of Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811), which effectively improves its electronic conductivity and prevents direct contact with the solid electrolyte, resulting in significantly enhanced electrochemical performance.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Sida Huo, Li Sheng, Wendong Xue, Li Wang, Hong Xu, Hao Zhang, Xiangming He
Summary: With the rapid development of energy storage technology, solid-state lithium batteries are considered as the ideal choice for the next generation of energy storage devices. Solid polymer electrolytes have better flexibility, machinability, and low interfacial impedance than inorganic solid electrolytes. However, their low ionic conductivity, narrow electrochemical stability window, and poor mechanical properties limit their practical applications. This review summarizes the recent progress and development trends of polymer electrolytes with wide electrochemical windows.
Review
Chemistry, Physical
Adrien Mery, Steeve Rousselot, David Lepage, Mickael Dolle
Summary: All-solid-state lithium batteries (ASSLB) show great promise in terms of energy density and safety, particularly those employing Solid Polymer Electrolytes (SPE) and Solid Composite Electrolytes (SCE). The electrochemical stability window (ESW) of the electrolyte is a critical parameter for enhancing energy density and cycle life of ASSLB.
Article
Materials Science, Ceramics
Dong Feng, Siyu Hao, Qi Liu, Tianbiao Zeng
Summary: A GeSe2/C composite was prepared and studied for its performance in lithium ion batteries. After special treatment, the material exhibited significantly reduced particle size, leading to improved cycling performance and reversible capacity.
CERAMICS INTERNATIONAL
(2021)
Article
Energy & Fuels
Yisen Peng, Feng Hao
Summary: This study developed a mechano-electrochemical model to investigate the electrochemical performance of solid-state Li metal batteries under bending deformation. It was found that bending alters ion transport and electric potential in the electrolyte, depending on the bending direction. Although the direct influence of bending on electrochemical kinetics is limited, it can increase stress and potential mechanical failure, leading to degradation of electrochemical performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Kangsheng Huang, Sheng Bi, Hai Xu, Langyuan Wu, Chang Fang, Xiaogang Zhang
Summary: Gel polymer electrolytes (GPEs) are used as alternatives to liquid electrolytes in lithium-metal batteries (LMBs). Adding diluent 1,1,2,2-tetrafluoroethyl 2,2,3,3-tetrafluoropropyl ether (TTE) to regulate the electrolyte structure improves the electrochemical stability and ion transport properties of GPEs. The addition of TTE enhances ion association and forms a robust and low-impedance solid electrolyte interface (SEI) on the anode surface. This study provides an effective approach for controlling solvation structures in GPEs, which can advance the design of GPE-based LMBs in the future.
Article
Polymer Science
Ting Ma, Xiuyun Ren, Liang Hu, Wanming Teng, Xiaohu Wang, Guanglei Wu, Jun Liu, Ding Nan, Baohua Li, Xiaoliang Yu
Summary: Lithium-metal batteries require electrolytes compatible with lithium-metal anodes. This research presents a diluted electrolyte that achieves high Coulombic efficiency for lithium plating/stripping and maintains high specific capacity during prolonged cycling.
Article
Chemistry, Physical
Kevin W. Gao, Nitash P. Balsara
Summary: The study shows that the independence of ion transport on molecular weight in polymer electrolytes helps minimize experimental uncertainty. While conductivity, salt diffusion coefficient, and thermodynamic factor are all positive as required, the cation transference number may exhibit negative values within a certain salt concentration range, warranting further investigation.
SOLID STATE IONICS
(2021)
Article
Materials Science, Multidisciplinary
Hui Cheng, Chaoyi Yan, Raphael Orenstein, Mahmut Dirican, Shuzhen Wei, Nakarin Subjalearndee, Xiangwu Zhang
Summary: Single-ion conducting polymer electrolytes (SIPEs) eliminate the severe concentration polarization effect by anchoring charge delocalized anions on the side chains of a crosslinked polymer matrix, while plasticized SIPEs usually face a trade-off between conductivity and mechanical strength. A mechanically reinforced SIPE was developed by crosslinking monomer and crosslinker with plasticizer on electrospun nanofibers. This SIPE showed remarkable ionic conductivity, excellent cycling stability, and has great potential in the development of advanced all-solid-state Li-metal batteries.
ADVANCED FIBER MATERIALS
(2022)
Review
Chemistry, Physical
Tianshi Lv, Liumin Suo
Summary: The water-in-salt system widens the electrochemical stability window of aqueous electrolyte from 1.23 V to above 3 V by using a super concentrated LiTFSI solution, addressing the longstanding issue of narrow ESW in aqueous battery systems. The study examines the factors influencing ESW in the water-in-salt system in detail from both thermodynamic and kinetic perspectives, emphasizing the importance of each factor such as solid-electrolyte interface and solvation structure.
CURRENT OPINION IN ELECTROCHEMISTRY
(2021)
Article
Chemistry, Physical
Longyun Shen, Yuhao Wang, Jing Yu, Guodong Zhou, Jiapeng Liu, Matthew J. Robson, Yanguang Zhou, Mohammed B. Effat, Francesco Ciucci
Summary: Li2OHCl is a promising solid-state electrolyte for all-solid-state Li-ion batteries. Strain engineering, achieved through isovalent doping, can improve Li+ conductivity and stabilize the highly conductive cubic phase at room temperature. By introducing tensile strain, Li2OHCl0.921I0.079 achieves a significantly higher ionic conductivity and demonstrates enhanced battery performance compared to Li2OHCl.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Longyun Shen, Yuhao Wang, Jing Yu, Guodong Zhou, Jiapeng Liu, Matthew J. Robson, Yanguang Zhou, Mohammed B. Effat, Francesco Ciucci
Summary: This study investigates the effect of strain on Li+ transport and finds that tensile strain can decrease the migration energy barrier. Tensile strain not only enhances conductivity but also stabilizes the highly conductive cubic phase at room temperature. An optimized composition (Li2OHCl0.921I0.079) achieves an ionic conductivity of 0.50 mS cm-1 at 373 K, five times larger than that of Li2OHCl. Furthermore, introducing tensile strain improves the Li+ conductivity and simultaneously stabilizes the cubic phase at low temperatures, resulting in significantly enhanced battery performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Aditya Choudhary, Dengpan Dong, Dmitry Bedrov
Summary: This study investigated the relationship between polymer structure and lithium ion transport mechanism through molecular dynamics simulations, and proposed design principles for improving conductivity.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Engineering, Environmental
Guangsheng Xu, Yajuan Zhang, Mingxi Jiang, Jinliang Li, Hengchao Sun, Jiabao Li, Ting Lu, Chenglong Wang, Guang Yang, Likun Pan
Summary: This study investigates the electrochemical stable window (ESW) of zinc-ion batteries (ZIBs) by incorporating organic solvents. Machine learning (ML) models are developed to predict the oxidation potentials (OPs) of organic solvents for zinc electrolytes. Experimental measurements and comparisons with theoretical calculations confirm the accuracy of the ML models. The zinc batteries assembled with these electrolytes exhibit remarkable cycling stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Ritu Sahore, Marissa Wood, Alexander Kukay, Zhijia Du, Kelsey M. Livingston, David L. Wood, Jianlin Li
Summary: Water-based processing for lithium-ion battery electrodes offers cost and environmental advantages. In this study, four different water-based binder combinations were tested for Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811)-based cathodes, and their long-term electrochemical performance in practical pouch cells was evaluated. The results showed that two of the water-based cathode formulations performed comparably to the baseline after 1000 cycles.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Murillo L. Martins, Xiaobo Lin, Catalin Gainaru, Jong K. Keum, Peter T. Cummings, Alexei P. Sokolov, Robert L. Sacci, Eugene Mamontov
Summary: Concentrated ionic solutions have limited conductivity due to high viscosities, but this can be mitigated through cosolvation. Different cosolvents have varying effects on the local structure and charge transport in concentrated lithium bis(trifluoromethane-sulfonyl)imide (LiTFSI)/acetonitrile solutions. Toluene and dichloromethane reduce conductivity by narrowing Li+-TFSI- interactions and increasing activation energies, while methanol and water broaden the distribution of Li+-TFSI- interactions and favor short-range Li+-Li+ interactions. Acetone preserves ion-ion interactions and forms large solvation complexes. These findings demonstrate the impact of cosolvation on conductivity and provide new insights into the structure/transport phenomena in concentrated ionic solutions.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Engineering, Chemical
Syed Z. Islam, Md Arifuzzaman, Gernot Rother, Vera Bocharova, Robert L. Sacci, Jacek Jakowski, Jingsong Huang, Ilia Nicolaevich Ivanov, Ramesh R. Bhave, Tomonori Saito, David S. Sholl
Summary: This study presents a scalable and energy-efficient hollow fiber membrane contactor (HFMC)-based process for CO2 capture using a green solvent. The use of deep eutectic solvent (DES) in HFMC allows for effective interaction between DES and CO2, overcoming drawbacks of direct absorption in DES. The research evaluates the performance of commercial low-cost polymer hollow fiber membranes in CO2 capture with DES and provides insights into the CO2 separation mechanism.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Uvinduni I. Premadasa, Vera Bocharova, Lu Lin, Anne-Caroline Genix, William T. Heller, Robert L. Sacci, Ying-Zhong Ma, Nikki A. Thiele, Benjamin Doughty
Summary: Liquid/liquid (L/L) interfaces play a crucial yet poorly understood role in various complex chemical phenomena, acting as gatekeepers to function. By using surface-specific vibrational sum frequency generation combined with neutron and X-ray scattering methods, we track the transport of DOP and DEHPA ligands in solvent extraction at buried oil/aqueous interfaces away from equilibrium. Our results show evidence of dynamic interfacial restructuring at low ligand concentrations, contrary to expectations. These findings provide new insights into interfacially controlled chemical transport at L/L interfaces, presenting potential avenues to design selective kinetic separations.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Kee Sung Han, J. David Bazak, Robert L. Sacci, Ying Chen, Tyler H. Bennett, Jagjit Nanda, Vijayakumar Murugesan
Summary: Solid-state electrolytes (SSEs) have attracted considerable attention for all-solid-state lithium-ion batteries due to their potential to enhance safety and performance. This study utilizes 7Li pulsed-field gradient nuclear magnetic resonance (PFG-NMR) to directly differentiate the diffusion of Li+ ions within the grains and grain boundaries of protonated lithium antiperovskites (pLiAPs) SSEs. The findings reveal that the long-range diffusion in the grain boundaries is highly sensitive to halide substitution and strongly correlated with the overall ionic conductivity.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Ritu Sahore, Beth L. L. Armstrong, Xiaomin Tang, Changhao Liu, Kyra Owensby, Sergiy Kalnaus, Xi Chelsea Chen
Summary: 3D-interconnected ceramic/polymer composite electrolytes show potential in combining the advantages of both ceramic and polymer electrolytes. This study systematically evaluates the role of ceramic scaffold architecture and polymer/ceramic interfaces on the electrochemical properties of such composite electrolytes. The findings suggest that the ionic conductivity of the ceramic scaffold is influenced by its porosity and tortuosity, while the interfacial impedance between the bulk composite and excess surface polymer layers dominates the overall impedance. Despite the impedance interfaces, an improved Li+ transference number is observed, leading to flatter overpotentials in lithium symmetric cell cycling.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Katie L. Browning, Andrew S. Westover, James F. Browning, Mathieu Doucet, Robert L. Sacci, Gabriel M. Veith
Summary: This study demonstrates the measurement of the interface between Li metal and the solid electrolyte LiPON using neutron reflectometry and in situ electrochemistry, which confirms the presence of a thin interphase less than 7 nm thick. The interphase is found to be a chemical gradient consisting of a Li-rich layer that gradually blends into pure LiPON. The ability to create ideal solid-solid interphases thinner than 10 nm holds significant importance in facilitating the adoption of high efficiency next generation solid state batteries, as well as providing a more general methodology for studying buried solid-solid interfaces across applications.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Ivan Popov, Zhenghao Zhu, Amanda R. R. Young-Gonzales, Robert L. L. Sacci, Eugene Mamontov, Catalin Gainaru, Stephen J. J. Paddison, Alexei P. P. Sokolov
Summary: The transport of protons is critical in various biochemical and electrochemical processes. The Grotthuss mechanism, proposed more than 200 years ago, is considered as the most efficient proton transport mechanism. However, direct experimental evidence has been lacking until now. In this study, we provide the first experimental observation of proton transfer between molecules in phosphoric acid solutions. Our analysis reveals that protons move by short jumps of approximately 0.5-0.7 angstroms, contrary to previous assumptions. Moreover, these proton jumps show correlations that actually reduce conductivity, challenging the expected enhancement predicted by the Grotthuss mechanism.
COMMUNICATIONS CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Haden L. Scott, Dima Bolmatov, Uvinduni I. Premadasa, Benjamin Doughty, Jan-Michael Y. Carrillo, Robert L. Sacci, Maxim Lavrentovich, John Katsaras, Charles P. Collier
Summary: Phospholipid bilayers can act as voltage-dependent memory capacitors, storing energy in the form of long-term potentiation (LTP) during training. LTP is caused by membrane restructuring and asymmetric ion distribution. Different salts have varying effects on LTP.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Jiyu Cai, Xinwei Zhou, Tianyi Li, Hoai T. Nguyen, Gabriel M. Veith, Yan Qin, Wenquan Lu, Stephen E. Trask, Marco-Tulio Fonseca Rodrigues, Yuzi Liu, Wenqian Xu, Maxwell C. Schulze, Anthony K. Burrell, Zonghai Chen
Summary: This study identifies the issues with silicon-based lithium-ion batteries during calendar aging and proposes strategies to improve battery life by suppressing parasitic reactions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Anna Mills, Guang Yang, Wan-Yu Tsai, X. Chelsea Chen, Robert L. Sacci, Beth L. Armstrong, Daniel T. T. Hallinan Jr, Jagjit Nanda
Summary: In this study, it was demonstrated that argyrodite sulfide (Li6PS5Cl) solid-state electrolyte can be combined with a small amount of poly(isobutylene) (PIB) binder to prepare free-standing thin film electrolytes. The thin films showed low specific resistance, reduced thickness, and comparable room temperature ionic conductivity. However, the introduction of polymer binder resulted in voids in the thin film electrolytes, compromising ion transport at the anode/electrolyte interface.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Vera Bocharova, Xi Chelsea Chen, Seung Pyo Jeong, Zhengping Zhou, Robert L. Sacci, Jong K. Keum, Catalin Gainaru, Md Anisur Rahman, Ritu Sahori, Xiao-Guang Sun, Pengfei Cao, Andrew Westover
Summary: In this paper, the synthesis of single Li-ion conducting hairy nanoparticle (NP) materials was reported, which improved the cycling stability of the PEO-LiTFSI solid electrolyte without significant reduction in conductivity. The hairy NPs influenced the Li/electrolyte interface and improved the mechanical properties of bulk composites, leading to homogeneous Li plating and stripping. The use of these NPs as additives is expected to be effective in reducing dendrite formation in other solid-state electrolytes.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Kyra D. Owensby, Ritu Sahore, Wan-Yu Tsai, X. Chelsea Chen
Summary: Lithium metal anode offers high theoretical energy density, but stable lithium plating and stripping remain challenging. This perspective examines lithium morphology in solid and gel polymer electrolytes and compares it with liquid electrolytes. Current strategies and limitations to control lithium morphology are discussed.
MATERIALS ADVANCES
(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)
