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
Nanoscience & Nanotechnology
Khryslyn G. Arano, Beth L. Armstrong, Ethan Boeding, Guang Yang, Harry M. Meyer III, Evelyna Wang, Rachel Korkosz, Katie L. Browning, Thomas Malkowski, Baris Key, Gabriel M. Veith
Summary: Vinylene carbonate (VC) and polyethylene oxide (PEO) are used as functional agents to mimic the solid electrolyte interphase (SEI) chemistry of silicon. Covalent surface functionalization of silicon particles was achieved through ball-milling with sacrificial VC and PEO. The additives are strongly bound to silicon, resulting in improved stability and dispersion of the functionalized particles. Raman mapping and capacity measurements show that VC-milled silicon exhibits higher capacity and improved electrode processing compared to neat silicon.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Hugo S. Francon, Yunus C. Gorur, Celine Montanari, Per A. Larsson, Lars Wagberg
Summary: Cellulose nanofibers (CNFs) are bio-sourced nanomaterials that can be used as binders in the preparation of high-performance nanocomposites. This study found that modified cellulosic fibers performed better than conventional binders in terms of electrochemical and mechanical properties in the preparation of graphite anodes for Li-ion batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Yajing Yan, Yanxu Chen, Yongyan Li, Xiaoyu Wu, Chao Jin, Zhifeng Wang
Summary: In this study, a Si/Fe2O3-anchored rGO framework was successfully prepared as a LIB anode with outstanding electrochemical performance, including high reversible capacity and excellent cycling stability. The framework's high specific surface area and promotion of ions and electrons transmission contribute to its exceptional performance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Di Lu, Xincheng Lei, Suting Weng, Ruhong Li, Jiedong Li, Ling Lv, Haikuo Zhang, Yiqiang Huang, Junbo Zhang, Shuoqing Zhang, Liwu Fan, Xuefeng Wang, Lixin Chen, Guanglei Cui, Dong Su, Xiulin Fan
Summary: The new electrolyte with self-purifying feature eliminates harmful substances, ensuring efficient cycling; the electrolyte system enables long-term cycling with high capacity retention at different temperatures, even under extreme conditions.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Krishnan Subramanyan, Yun-Sung Lee, Vanchiappan Aravindan
Summary: This study evaluates the electrochemical performance of graphite recovered from 6H-pencil with the highest content of SiO2 in both Na-ion half and full-cell assemblies. The capacity at high current rates is maximum when a G2-based electrolyte is used, while the capacity retention after high current rates is better in a G4-based system. The study shows that the charge storage mechanism can be varied by tuning the electrolyte solvent.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(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, Physical
So-Yeon Ham, Hedi Yang, Omar Nunez-cuacuas, Darren H. S. Tan, Yu-Ting Chen, Grayson Deysher, Ashley Cronk, Phillip Ridley, Jean-Marie Doux, Erik A. Wu, Jihyun Jang, Ying Shirley Meng
Summary: All-solid-state Li metal batteries (Li-ASSBs) have potential for high energy densities but face a major bottleneck of low critical current density (CCD) at room temperature. Previous studies have reported inconsistent CCDs, attributed to variations in pressure, temperature, and solid electrolyte chemistry. This study investigates the relationship between fabrication pressure contact hold time and CCD, evaluates CCDs for different cell architectures, and introduces a constant pressure cell design to enhance CCD at room temperature.
ENERGY STORAGE MATERIALS
(2023)
Article
Engineering, Environmental
Si Yi, Zhilin Yan, Xingda Li, Zhen Wang, Pengpeng Ning, Jingwen Zhang, Jinlan Huang, Deren Yang, Ning Du
Summary: High-energy lithium-ion batteries (LIBs) with fast-charging technology are in great demand for portable electronics and electric vehicles. However, commercializing silicon (Si) as an anode material has been challenging due to its large volume change and poor conductivity. To address this issue, a high-Si-content Si/hard carbon composite has been designed, which effectively enhances lithium-ion diffusion and reaction kinetics. The composite exhibits a reversible capacity of 1124 mAh/g at 0.1C and maintains 87.4% capacity retention after 200 cycles at 1C. Pouch-type full-cell tests further demonstrate good cycling stability and high rate performance. This work provides a new approach for rational design of Si-based anode materials for high-energy and high-power LIBs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Tae-Gyun Kwon, Hayoung Park, Oong Hyeon Jo, Jinyoung Chun, Beom-Goo Kang
Summary: A facile method for preparing magnetite-incorporated polyacrylonitrile-derived carbon composites was developed for lithium-ion batteries (LIBs). The composites showed increased specific capacities and stable cycle performance, making them a promising material for high-power LIBs.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Multidisciplinary
Moon Kyu Cho, Seung Jae You, Jung Gyu Woo, Jung-Chul An, Sujin Kang, Hyun-Wook Lee, Ji Hoon Kim, Cheol-Min Yang, Yong Jung Kim
Summary: By optimizing the design of Si/C composite anodes, modifying the surface with chemical vapor deposition, and doping with graphite, the performance of lithium-ion batteries can be significantly improved in terms of cycle life and efficiency.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Chemistry, Physical
Dongmei Zhang, Ruonan Yang, Jianhua Zhou, Wenping Liu, Haiqing Qin, Zhenjun Zhang, Xiaoxu Lei, Anjun Lu, Zuxue Mo, Lei Miao, Feng Dang
Summary: The study presents a one-pot method to fabricate Si@ZIF core-shell particles, which modified the Si anode effectively. The ZIF-8 shell provides a uniform and accelerated lithium ion diffusion route, while the rhombic dodecahedron structure buffers the volume change and maintains the integrity of the Si electrode.
ENERGY STORAGE MATERIALS
(2023)
Article
Engineering, Environmental
Jannes Mueller, Mozaffar Abdollahifar, Andrey Vinograd, Markus Noeske, Christine Nowak, Shu-Jui Chang, Tobias Placke, Wolfgang Haselrieder, Martin Winter, Arno Kwade, Nae-Lih Wu
Summary: The study reports the fabrication of silicon-on-graphite composites using fluidized bed granulation for the first time, showing the formation of core-shell microstructure. By using a suitable binder during the process, the carbon-coated composites exhibit high capacity, high rate capability, and long cycle stability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Linze Lv, Yan Wang, Weibo Huang, Yueyue Wang, Zhang Cao, Yuchen Li, Qiang Shi, Honghe Zheng
Summary: This work investigates the effect of cathode type on the electrochemical performance of Si-based FCs and finds that NCM523 is more suitable for achieving high-rate and long-cycle in Si-based FCs. The cathode type impacts the distribution of electrolyte decomposition products, and NCM523 benefits the formation of more conductive organic components and LiF that prevents electrolyte erosion.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
R. Srinivasan, K. S. Ravi Chandran
Summary: The paper discusses the discovery of an ideal structure for mesoporous Si electrodes, which exhibits exceptional cracking/damage resistance and high specific and total capacities. It is found that electrodes with the optimized structural parameter are free from first-cycle capacity degradation and can uniformly accommodate the volume changes during lithiation. The study shows that the ideal structure is crucial for achieving ultrahigh energy storage density in Si mesoporous electrodes for Li-ion batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Jaswinder Sharma, Xiang Lyu, Tatyana Reshetenko, Georgios Polizos, Kelsey Livingston, Jianlin Li, David L. Wood, Alexey Serov
Summary: The series of electrodes for proton exchange membrane fuel cell (PEMFC) application were successfully fabricated using a scalable and manufacturable slot-die coating method. The obtained electrodes were uniform and homogeneous with minimum defects, and the electrochemical evaluation showed close characteristics for all samples, confirming the reproducibility of the process. The study also found that decreased membrane thickness favored the performance of the membrane electrode assemblies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Xiang Lyu, Tim Van Cleve, Erica Young, Jianlin Li, Haoran Yu, David A. Cullen, K. C. Neyerlin, Alexey Serov
Summary: Proton exchange membrane fuel cells (PEMFCs) powered by green hydrogen (H2) are a promising alternative to traditional hydrocarbon-fueled power generators. However, further improvements are needed in efficiency, durability, and low-cost production for widespread adoption. Most strategies to improve PEMFC electrodes utilize single material sets, but anisotropic electrode structures with locally tunable properties may offer enhanced performance due to improved transport.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Shengliang Xie, Hui Yu, Liangguang Liu, Jianlin Li
Summary: Lead glaze with excellent radiation shielding ability can effectively prevent radiation leakage by using lead glazed indoor titles in buildings. However, the low firing temperature of lead glaze is associated with poor wear resistance. In this study, super-hard cBN particles are introduced into the soft glass matrix to improve mechanical properties. Results show that with 5 wt% cBN particles embedded in the glass matrix, the hardness increases by 51.2% and the wear resistance significantly improves.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Jaswinder Sharma, Georgios Polizos, Marm Dixit, Charl J. Jafta, David A. Cullen, Yaocai Bai, Xiang Lyu, Jianlin Li, Ilias Belharouak
Summary: Lithium-ion battery cathode materials often suffer from degradation issues, which can harm their overall performance. Oxide coatings have been proven to be effective in improving electrochemical performance, however, current coating methods are not efficient and can be costly. In this article, a low-cost and scalable strategy for applying oxide coatings on cathode materials is discussed, showing enhancement in the performance of aqueously processed cathodes in cells. This strategy shows potential in improving the performance of aqueously processed Li-ion cells.
Article
Plant Sciences
Chao Ji, Zengwen Liang, Hui Cao, Zhizhang Chen, Xuehua Kong, Zhiwen Xin, Mingchao He, Jie Wang, Zichao Wei, Jiahao Xing, Chunyu Li, Yingxiang Zhang, Hua Zhang, Fujin Sun, Jianlin Li, Kun Li
Summary: This study investigated changes in gene expression profiles in wheat roots and leaves after inoculation with compound microbial agents and revealed that compound microbial inoculants could improve salt tolerance and disease resistance in wheat by regulating the expression of metabolism-related genes and activating immune pathway-related genes.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Energy & Fuels
L. S. Lin, J. L. Li, I. M. Fishman, L. Torres-Castro, Y. Preger, V. De Angelis, J. Lamb, X. Q. Zhu, S. Allu, H. Wang
Summary: Thermal runaway is an important safety concern for Li-ion batteries, and a standardized single-side indentation test protocol was developed to induce an internal short-circuit. Cell voltage, temperature, and applied compressive force were monitored over time. The observed hazard severity (OHS) and calculated hazard severity (CHS) were used to assess the thermal runaway severity of over 100 Li-ion batteries with different states of charge (SOC) and chemistries, providing a clear comparison for battery designers, manufacturers, and end-users.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
X. Lyu, T. Zhang, Z. Li, C. J. Jafta, A. Serov, I. -H. Hwang, C. Sun, D. A. Cullen, J. Li, J. Wu
Summary: This study investigates the effect of trace Cu loading on metal-free catalysts for CO/CO2 reduction reactions (CORR). It is found that increasing Cu loading switches the selectivity from C1 (CH4) to C2 products in CORR. At a Cu loading of 2.5 mu g/cm2, the Faradaic efficiency of CH4 in CORR decreased from 62% to 52% for C2 products. Further increasing the atomic Cu loading to 3.8 mu g/cm2 promotes the Faradaic efficiency of C2 products to 78%. CO2RR requires higher Cu loading than CORR to switch the selectivity from C1 to C2 products. This study clarifies the distinct impact of trace Cu on the activity/selectivity between CORR and CO2RR.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Runming Tao, Susheng Tan, Harry M. Meyer III, Xiao-Guang Sun, Bryan Steinhoff, Kahla Sardo, Amer Bishtawi, Tillman Gibbs, Jianlin Li
Summary: Dry processing is a promising method for high-performance and low-cost lithium-ion battery manufacturing which uses polytetrafluoroethylene (PTFE) as a binder. The electrochemical stability of PTFE binder in the cathodes and the chemistry of the cathode electrolyte interphase (CEI) layers are studied by cycling the high-loading dry-processed electrodes in electrolytes with LiPF6 or LiClO4 salt. The detection of LiF confirms that PTFE undergoes side reactions in the cathodes, and the thickness of the CEI layer is found to be much thicker when LiPF6 is used as the electrolyte salt compared to LiClO4.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Xiang Lyu, Dimitra Anastasiadou, Jithu Raj, Jingjie Wu, Yaocai Bai, Jianlin Li, David A. Cullen, Jun Yang, Liliana P. L. Gonsalves, Oleg I. Lebedev, Yury V. Kolen'ko, Marta Costa Figueiredo, Alexey Serov
Summary: A facile approach for synthesizing M-N-C catalysts (M = Co, Fe, Ni) without organic solvents at a commercial scale is reported. Single atomic catalysts with high surface areas were successfully obtained. Among the synthesized catalysts, Ni-N-C exhibited the highest performance in the electrochemical CO2 reduction reaction, with 80% Faradaic efficiency of CO production at -0.49 VRHE and a turnover frequency of 57,379 h-1. The large-scale synthesis and high performance of M-N-C catalysts enable their practical implementation in industrially relevant CO2RR.
ELECTROCHIMICA ACTA
(2023)
Article
Agricultural Engineering
Jianlin Li, Hong Lei, Xuedong Xi, Chunyin Li, Defa Hou, Jiaxuan Song, Guanben Du
Summary: This paper investigates a novel bio-based adhesive, tannin-citric acid (TCA) adhesive, for preparing wood-based panels. By optimizing the synthesis parameters, high-performance plywood with favorable properties is achieved. The TCA adhesive meets the Chinese National Standard and demonstrates great potential for industrial production of high-performance wood-based panels.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Industrial
Jaswinder Sharma, Zoriana Demchuk, Georgios Polizos, Nihal Kanbargi, Runming Tao, Amit Naskar, Jianlin Li
Summary: The development of high-voltage cathode materials driven by high energy density demand requires improved electrochemical stability of battery components. A metal-free composite film containing carbon fiber, carbon nanotube, and polymer was developed to replace aluminum foil as a cathode current collector. The CF-CNT-P composite demonstrated excellent electrochemical and thermal stability, with cathodes coated on it showing improved performance compared to those deposited on conventional aluminum foil. The lightweight and simplified recycling process further contribute to its potential in high-energy-density batteries.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Runming Tao, Bryan Steinhoff, Conrad H. Sawicki, Jaswinder Sharma, Kahla Sardo, Amer Bishtawi, Tillman Gibbs, Jianlin Li
Summary: Dry processing of lithium-ion battery electrodes is considered a promising strategy for manufacturing, but little is known about the impact of dry mixing. This study monitors the degree of dry mixing using dry mixing time and prepares a series of dry-processed electrodes with different degrees of dry mixing. It reveals that the degree of dry mixing significantly affects the morphology, homogeneity of electrode components, and PTFE fiberization, leading to variations in the mechanical strength and electrochemical performance of dry-processed electrodes. It is suggested that a moderate degree of dry mixing is preferred for high-performance dry-processed lithium-ion battery electrodes.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Runming Tao, Bryan Steinhoff, Kuebra Uzun, Ben Ben La Riviere, Kahla Sardo, Brendan Skelly, Ryan Hill, Yang-Tse Cheng, Jianlin Li
Summary: Dry processing has advantages over conventional slurry-based processing in electrode fabrication, improving the mechanical and electrochemical properties. Controlling the electrode porosity can enhance the fracture behavior of the electrode.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Georgios Polizos, Sergiy Kalnaus, Xi Chelsea Chen, Marm Dixit, Mahalingam Balasubramanian, Jaswinder Sharma, Runming Tao, Jianlin Li
Summary: This study developed structured cathodes for solid state batteries using a freeze tape casting technique. The double-layer configuration with a dense bottom layer for energy density and a porous top layer for power density improved the battery performance. The structured cathodes exhibited higher capacity values and better Coulombic efficiency.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Engineering, Environmental
Xiang Lyu, Yaocai Bai, Jianlin Li, Runming Tao, Jun Yang, Alexey Serov
Summary: This study evaluated two commercially available stainless steel mesh substrates (316 SS and 304 SS) as electrodes for oxygen evolution reaction (OER) in natural seawater electrolysis. The results show that 304 SS is less stable against corrosion under neutral and low alkaline seawater electrolytes due to metal dissolution and chlorine evolution reaction (CER), while 316 SS outperforms 304 SS in terms of electrocatalytic activity and corrosion resistance. The performance of 304 SS is comparable to 316 SS under high alkaline seawater electrolyte, where CER and metal dissolution are suppressed by OER.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)
