Review
Materials Science, Multidisciplinary
Kailimai Su, Yan Wang, Bao Yang, Xu Zhang, Wei Wu, Junwei Lang, Xingbin Yan
Summary: This review provides a comprehensive summary of the important role of pre-lithiation in lithium-ion capacitors (LICs) and the application of cathode sacrificial lithium salts (CSLSs) in pre-lithiation strategies. Various pre-lithiation methods are systematically discussed and compared, highlighting the lithium extraction mechanism of CSLSs and their influence on LICs performance. A summary and outlook are provided to guide the development of new pre-lithiation technologies.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yongchuang Xiong, Yan Liu, Long Chen, Songtong Zhang, Xiayu Zhu, Tengteng Shen, Dongsheng Ren, Xiangming He, Jingyi Qiu, Li Wang, Qiao Hu, Hao Zhang
Summary: Graphite is the dominant anode material for lithium-ion batteries, but it is prone to Li-plating when charged fast or at low temperatures, resulting in performance degradation and safety concerns. This study clarifies the mechanism of lithium evolution from graphite particles and reveals that the degradation of graphite anode is accelerated by the decrease of Li-plating overpotential. This finding contradicts the popular theory and provides insight for the design of advanced materials and electrodes to avoid Li-plating and achieve fast and safe charging.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Review
Chemistry, Physical
Zhaojin Li, Jinxing Yang, Tianjia Guang, Bingbing Fan, Kongjun Zhu, Xiaohui Wang
Summary: This paper summarizes the recent progress in controlled hydrothermal/solvothermal synthesis of LiFePO4 and explores the relationship between the synthesis conditions and the nucleation-and-growth of LiFePO4. The review covers surface decoration, lattice substitution, and defect control, while also discussing new research directions and future trends in the field.
Article
Chemistry, Multidisciplinary
Fengfeng Han, Liwen Fan, Zhiguo Zhang, Xitian Zhang, Lili Wu
Summary: In this study, Pt nanoparticles were incorporated into biomass-derived carbon materials to address the challenges of polysulfide shuttle effect and sluggish nucleation of Li-2 S in lithium-sulfur batteries (LSBs). The Pt nanoparticles not only enhanced the electrical conductivity of the sulfur cathodes and immobilized LiPSs, but also catalyzed the redox reactions of sulfur species bidirectionally and regulated the 3D deposition and growth of Li-2 S, resulting in accelerated conversion of LiPSs in LSBs.
Article
Chemistry, Physical
Guxin Huang, Jianing Liang, Xingguo Zhong, Haoyue Liang, Can Cui, Cheng Zeng, Shuhao Wang, Mengyi Liao, Yue Shen, Tianyou Zhai, Ying Ma, Huiqiao Li
Summary: In this study, the pre-lithiation performance of Li2C2O4 as a cathode additive was greatly improved by optimizing the combination of conductive additives and catalysts, reducing the particle size, and designing a bilayer electrode. By lowering the delithiation potential, the capacity of Li2C2O4 was increased to its theoretical value and effectively applied to a hard carbon anode.
Article
Chemistry, Physical
Qiuju Xu, Na Wang, Tuo Xin, Xiangcheng Yuan, Yiqing Li, Qi Zhang, Jinzhang Liu
Summary: In this study, a high-capacity and high-voltage Zn-ion battery using a polymer cathode and two ion-selective membranes for separating acidic and alkaline electrolytes is reported. The cathode, prepared by electrodepositing poly(4,4'-oxydianiline) onto mesoporous activated carbon, delivers a high areal capacity of 5.42 mAh cm-2. Due to the use of different electrolytes at the cathode and anode sides, this aqueous Zn-organic battery operates within an elevated voltage window of 1.3-2.5 V and exhibits a high discharge median voltage of -2 V. Furthermore, the optimization of electrolyte concentration and the use of additives to improve the Zn anode performance are systematically studied.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Wenxin Mei, Lihua Jiang, Chen Liang, Jinhua Sun, Qingsong Wang
Summary: This study uses experimental methods and finite element models to uncover the mechanism of lithium plating on graphite electrodes under over-lithiation conditions, providing diagnostic and quantification methods. The results show that lithium plating leads to battery capacity degradation and safety issues, emphasizing the importance of tight control to prevent adverse effects.
ENERGY STORAGE MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Xin Liang, Lulu Wang, Yang Wang, Jufeng Yun, Yi Sun, Hongfa Xiang
Summary: Introduction of an economic and convenient synchronous carbothermal reduction for preparing Co9S8-C-Li2S composite as cathode material reduces the cost significantly and improves the performance of Li-ion-S batteries. The composite with small particles of Li2S and Co9S8 uniformly distributed in a carbon matrix effectively inhibits shuttle effect and reduces activation voltage, resulting in a battery with lower active voltage and higher initial charge capacity.
Article
Chemistry, Physical
Huize Jiang, Yu Han, Hui Wang, Yuhao Zhu, Qingpeng Guo, Haolong Jiang, WeiWei Sun, Chunman Zheng, Kai Xie
Summary: All-solid-state Li-S batteries assembled with inorganic solid electrolyte have high safety and theoretical energy density, but the interfaces among components in composite cathodes have been a key factor affecting performance. In-situ chemical reactions such as thermal reduction and in-situ growth can be employed to improve interface performance by constructing conductive and ionic channels on the surface of Li2S.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Editorial Material
Materials Science, Multidisciplinary
Sheng Shui Zhang
Summary: Fast charging of Li-ion cells faces challenges including accelerated capacity fade and inferior charging capability. Apart from the well-known issues of Li plating and voltage polarization, there are hidden factors such as failure of the solid electrolyte interphase, structural degradation of cathode materials, and high activation energies of Li+ ions in the electrolyte. Understanding these factors can help propose solutions to the fast-charging problems.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Article
Chemistry, Physical
Wenwen Deng, Weibo Shi, Peiyuan Li, Naiqi Hu, Shuchan Wang, Jiayao Wang, Liang Liu, Zhuanzhuan Shi, Jian Lin, Chunxian Guo
Summary: All-organic lithium-ion batteries (AOLBs) are sustainable, versatile, and potentially low-cost energy storage devices. However, their development is limited by the performance and stability of the Li-contained organic cathodes. This study introduces LiTCNQ as a new cathode material for AOLBs and demonstrates its air-stable nature and high performance.
ENERGY STORAGE MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Jicheng Jiang, Qining Fan, Shulei Chou, Zaiping Guo, Konstantin Konstantinov, Huakun Liu, Jiazhao Wang
Summary: The research progress and challenges of Li2S-based Li-ion sulfur batteries (LISBs) are reviewed, with a focus on the optimization of their performance. The use of lithium-metal-free anodes in LISBs provides a convenient and effective way to avoid the challenges associated with lithium metal in practical Li-S batteries. Perspectives on the future direction of the research of LISBs are proposed at the end.
Article
Green & Sustainable Science & Technology
Haotian Zhu, Junxiao Li, Dichao Wu, Gaoyue Zhang, Ao Wang, Kang Sun
Summary: A novel cathode pre-lithiation method is proposed to avoid safety hazards and impairments of the cathode in lithium-ion capacitors. Lithium ions are stored in the cathode by capacitive adsorption, serving as the lithium source for pre-lithiation. The degree of pre-lithiation can be regulated by changing the charge voltage of the capacitive adsorption. The pre-lithiated LIC device achieves a specific capacity of 31.4 mAh g-1.
Article
Chemistry, Physical
Mark Wolfman, Xiaoping Wang, Juan C. Garcia, Pallab Barai, Joanne E. Stubbs, Peter J. Eng, Ozge Kahvecioglu, Tiffany L. Kinnibrugh, Kenneth E. Madsen, Hakim Iddir, Venkat Srinivasan, Tim T. Fister
Summary: In this study, operando characterization combined with atomic-scale and continuum simulations reveals the relationship between the morphology of cathode primary particles and their lithiation during calcination of LiNi0.8Mn0.1Co0.1O2 (NMC-811), shedding light on the mechanism of their impact on the electrochemical performance of materials.
ADVANCED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Jong Guk Kim, Yuseong Noh, Youngmin Kim
Summary: This paper investigates the application of Li-rich Li1.20Ni0.28Mn0.52O2 cathode and MnO coated with carbon anode materials in lithium-ion full batteries. The Li-rich Li1.20Ni0.28Mn0.52O2 cathode exhibits high capacity, good cycle life, and outstanding rate capability. The MnO anode decorated with carbon shows high capacity, good capacity retention, and high kinetic properties.
Article
Electrochemistry
Seongki Ahn, Minori Fukushima, Hiroki Nara, Toshiyuki Momma, Wataru Sugimoto, Tetsuya Osaka
Summary: The study found that the use of fluoroethylene carbonate (FEC) increased internal resistance and decreased the cyclability of LIC full-cells, while LICs with vinylene carbonate (VC) additives exhibited good cyclability over 4000 cycles due to the presence of polymeric species in the solid electrolyte interphase (SEI). This detailed investigation into the function of SEI compounds derived from VC additives and their effect on cyclability will provide new insights into optimizing LIC full-cell configurations with appropriate electrolyte additives.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Physical
Qianchuan Yu, Zhihuan Xue, Meichen Li, Peimeng Qiu, Changgang Li, Shengping Wang, Jingxian Yu, Hiroki Nara, Jongbeom Na, Yusuke Yamauchi
Summary: Organic compounds with nitrogen-containing groups (OCNs) have shown promising potential as electrode materials in rechargeable batteries, with their electrochemical properties improved through molecular structure regulation and enhancement of electrochemical activity centers.
ADVANCED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Natsuki Nakamura, Tokihiko Yokoshima, Hiroki Nara, Hitoshi Mikuriya, Ayahito Shiosaki, Seongki Ahn, Toshiyuki Momma, Tetsuya Osaka
Summary: This study demonstrates the high-rate performance of high sulfur-loaded cathodes using a novel battery structure with PPy coating. The utilization of PPy coating suppresses polysulfide dissolution in the electrolyte, leading to improved discharge capacities. The 3D Al foam and acetylene black facilitate an enhanced conductive path in the cathode, contributing to improved high-rate performance.
Review
Chemistry, Multidisciplinary
Jie Wang, Bing Ding, Xiangjun Lu, Hiroki Nara, Yoshiyuki Sugahara, Yusuke Yamauchi
Summary: Recent studies have shown that single-atom catalysts (SACs) can effectively enhance the performance of Li-S batteries. By introducing SACs into Li-S batteries, conversion kinetics of polysulfides can be promoted, suppressing the shuttle effect and improving the efficiency of Li stripping/plating while preventing the growth of Li dendrites.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Electrochemistry
Natsuki Nakamura, Tokihiko Yokoshima, Hiroki Nara, Hitoshi Mikuriya, Ayahito Shiosaki, Seongki Ahn, Toshiyuki Momma, Tetsuya Osaka
Summary: A low-resistance polypyrrole film was developed in this study, which can achieve high rates while suppressing polysulfide dissolution. By using a three-dimensional aluminum foam current collector and enhancing Li+ concentration, a high discharge capacity sulfur cathode was prepared with significant improvement in capacity retention and almost no polysulfide dissolution. This study demonstrates the potential for lithium-sulfur battery application with a 3D structure cathode coated with PPy.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Minjun Kim, Joseph F. S. Fernando, Jie Wang, Ashok Kumar Nanjundan, Jongbeom Na, Md Shahriar A. Hossain, Hiroki Nara, Darren Martin, Yoshiyuki Sugahara, Dmitri Golberg, Yusuke Yamauchi
Summary: The study presents a heterostructured porous carbon framework composed of rGO nanosheets and MOF-derived microporous carbon, showing efficient lithium-ion storage performance. The unique 3D heterostructure of the PCF can withstand volume expansion, contributing to a deeper understanding of tailored design for future lithium-ion batteries.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Fabian Horsthemke, Christoph Peschel, Kristina Kosters, Sascha Nowak, Kentaro Kuratani, Tomonari Takeuchi, Hitoshi Mikuriya, Florian Schmidt, Hikari Sakaebe, Stefan Kaskel, Tetsuya Osaka, Martin Winter, Hiroki Nara, Simon Wiemers-Meyer
Summary: Most commercially available lithium ion battery systems and some of their potential successors rely on liquid organic electrolytes. Understanding the electrolyte decomposition and its influence on cell performance and aging mechanisms is crucial. However, information about soluble species in the electrolytes, particularly in lithium-sulfur batteries, is limited. This study addresses the irreversible decomposition reactions of ether-based electrolytes using gas chromatography-mass spectrometry. The reactivity of lithium polysulfides with carbonate-based solvents is also investigated. Additionally, a new aging mechanism is discovered in carbonate-based electrolytes from operative lithium-titanium sulfide cells.
Article
Chemistry, Multidisciplinary
Yunqing Kang, Yanna Guo, Jingjing Zhao, Bo Jiang, Jingru Guo, Yi Tang, Hexing Li, Victor Malgras, Mohammed A. Amin, Hiroki Nara, Yoshiyuki Sugahara, Yusuke Yamauchi, Toru Asahi
Summary: In this study, well-defined P- and B-codoped NiFe alloy mesoporous nanospheres were synthesized, and they exhibited low overpotential in the oxygen evolution reaction. This work highlights the importance of designing mesoporous nonnoble metal structures and incorporating phosphorus for enhancing the intrinsic activity.
Article
Chemistry, Multidisciplinary
Yujie Song, Xiaokai Song, Xiaoke Wang, Jingzheng Bai, Fang Cheng, Chao Lin, Xin Wang, Hui Zhang, Jianhua Sun, Tiejun Zhao, Hiroki Nara, Yoshiyuki Sugahara, Xiaopeng Li, Yusuke Yamauchi
Summary: Two-dimensional (2D) layered metal-organic framework (MOF) nanoparticle (NP) superstructures were synthesized using an ice-templating strategy. The resulting carbon nanoparticle superstructures showed improved oxygen reduction activity compared to isolated carbon particles in alkaline media.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Yingji Zhao, Hiroki Nara, Dong Jiang, Toru Asahi, Sameh M. Osman, Jeonghun Kim, Jing Tang, Yusuke Yamauchi
Summary: This study presents a tailored design of open-mouthed particles hollow cobalt/nitrogen-doped carbon with mesoporous shells, which exhibits sufficient accessibility and electroactivity on both the inner and outer surfaces. By leveraging the self-conglobation effect of metal sulfate in methanol, a raspberry-structured Zn/Co-ZIF precursor is obtained, which is further carbonized to fabricate the open-mouthed particles hollow cobalt/nitrogen-doped carbon. In-depth electrochemical investigations demonstrate that the introduction of open pores can enhance mass transfer and improve the utilization of the inner active sites. Therefore, the resulting open-mouthed particles hollow cobalt/nitrogen-doped carbon exhibits exceptional electrocatalytic oxygen reduction performance and demonstrates excellent durability.
Article
Chemistry, Physical
Mohammed G. Kotp, Nagy L. Torad, Hiroki Nara, Watcharop Chaikittisilp, Jungmok You, Yusuke Yamauchi, Ahmed F. M. EL-Mahdy, Shiao-Wei Kuo
Summary: In this study, we report the rational syntheses of three conjugated microporous polymers (CMPs) with different thiophene contents, topologies, and molecular structures. These CMPs show spherical morphologies, tunable pore volumes, and high thermal and chemical stabilities. Among them, the TPP-ThZ CMP exhibits the highest adsorption capacity for Cr(VI), surpassing other recently reported adsorbents.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Azhar Alowasheeir, Hiroki Nara, Miharu Eguchi, Yusuke Yamauchi
Summary: A uniform nanoframe structure derived from a Prussian blue analogue (PBA) with an internal cavity is synthesized using sonochemical etching. The uniquely structured PBA nanoframes possess a three-dimensional open structure and high surface area, resulting in enhanced electrochemical properties for the oxygen evolution reaction as a model reaction.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Minjun Kim, Konstantin L. Firestein, Joseph F. S. Fernando, Xingtao Xu, Hyunsoo Lim, Dmitri Golberg, Jongbeom Na, Jihyun Kim, Hiroki Nara, Jing Tang, Yusuke Yamauchi
Summary: This study demonstrates the significance of strategic nanoarchitecture design in achieving advanced catalyst (or electrode) materials for the oxygen reduction reaction (ORR). The results show that different porosity structures have a marked impact on the electrochemical properties, with mesopores significantly improving wettability and accessibility, and macropores contributing to rate capability. The study also highlights the advantages of a double-shelled nanoarchitecture in increasing electron transfer for ORR.
Article
Chemistry, Physical
Yamato Haniu, Hiroki Nara, Seongki Ahn, Toshiyuki Momma, Wataru Sugimoto, Tetsuya Osaka
Summary: This study introduces metal chloride-pillared graphite as the negative electrode for LICs for the first time, showing higher energy and power densities as well as stable cycling performance.
JOURNAL OF MATERIALS CHEMISTRY A
(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)
