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Dual Additives for Stabilizing li Deposition and SEI Formation in Anode-Free li-Metal Batteries

Energy & Environmental Materials 2024年第3期7卷 88-96页

作者： Baolin Wu Chunguang Chen dmitri l.danilov Zhiqiang Chen Ming Jiang Rüdiger-A.Eichel Peter H.l.Notten Forschungszentrum Jülich (IEK-9) RWTH Aachen University lNM Institute of MechanicsChinese Academy of Sciences School of Engineering Sciences University of Chinese Academy of Sciences Eindhoven University of Technology School of Electronics and Information Institute of Carbon Neutrality and New EnergyHangzhou Dianzi University University of Technology Sydney

Anode-free li-metal batteries are of significant interest to energy storage industries due to their intrinsically high ***,the accumulative li dendrites and dead li continuously consume active li during *** results in a short lifetime and low Coulombic efficiency of anode-free li-metal *** effective electrolyte additives can improve the li deposition homogeneity and solid electrolyte interphase (SEI) stability for anode-free li-metal ***,we reveal that introducing dual additives,composed of liAsF6 and fluoroethylene carbonate,into a low-cost commercial carbonate electrolyte will boost the cycle life and average Coulombic efficiency of NMC‖Cu anode-free li-metal *** NMC‖Cu anode-free li-metal batteries with the dual additives exhibit a capacity retention of about 75%after50 cycles,much higher than those with bare electrolytes (35%).The average Coulombic efficiency of the NMC‖Cu anode-free li-metal batteries with additives can maintain 98.3%over 100 *** contrast,the average Coulombic efficiency without additives rapidly decline to 97%after only *** situ Raman measurements reveal that the prepared dual additives facilitate denser and smoother li morphology during li *** dual additives significantly suppress the li dendrite growth,enabling stable SEI formation on anode and cathode *** results provide a broad view of developing low-cost and high-effective functional electrolytes for high-energy and long-life anode-free li-metal batteries.

关键词： anode-free lithium metal battery dual additives in situ Raman li growth SEI formation

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Battery Modeling: A Versatile Tool to Design Advanced Battery Management Systems

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Advances in Chemical Engineering and Science 2014年第1期4卷 62-72页

作者： Peter H. l. Notten dmitri l. danilov Group Energy Materials and Devices Department of Chemical Engineering and Chemistry Eindhoven University of Technology Eindhoven The Netherlands

Fundamental physical and (electro) chemical principles of rechargeable battery operation form the basis of the electronic network models developed for Nickel-based aqueous battery systems, including Nickel Metal Hydride (NiMH), and non-aqueous battery systems, such as the well-known li-ion. Refined equivalent network circuits for both systems represent the main contribution of this paper. These electronic network models describe the behavior of batteries during normal operation and during over (dis) charging in the case of the aqueous battery systems. This makes it possible to visualize the various reaction pathways, including convention and pulse (dis) charge behavior and for example, the self-discharge performance.

关键词： Battery Modelling Rechargeable Batteries li-Ion NiMH Battery Management Systems (BMS)

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Modeling and Implementation of a Highly Efficient Solar-Powered Storage Installation through Self-Reconfigurable Batteries

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Open Journal of Energy Efficiency 2022年第2期11卷 37-53页

作者： Ioannis Zavos dmitri l. danilov Peter H. l. Notten Institute of Energy and Climate Research (IEK-9) Forschungszentrum Jülich Jülich Germany Sustainable Energy Technology Department of Mechanical Engineering Eindhoven University of Technology Eindhoven The Netherlands Department of Electrical Engineering Eindhoven University of Technology Eindhoven The Netherlands University of Technology Sydney Sydney Australia

Self-reconfigurable batteries represent a new and promising technique of electrochemical storage. The application of self-reconfigurable batteries can resolve the challenge of efficient renewable storage in solar-powered installations. In this paper, the problem of solar panel’s Maximum Power Point (MPP) tracking utilizing self-reconfigurable batteries is explored through modeling. The efficiency of energy storage is improved by removing the intervening DC/DC converter, which is usually necessary for solar PV applications. To make such a system functional, a Switching Battery Management System (SBMS) is proposed instead of a traditional couple of DC/DC converter and usual BMS. This system allows the series connection of multiple battery modules of different sizes, States-of-Charge (SoC), and States-of-Health (SoH). Two main challenges arise by the proposed implementation: tracking MPP of solar panels through battery cell switching and maintaining an equal (balanced) SoC of the separate cells/modules. The theoretical investigation includes developing the distinct software parts: digital twins of the battery module and solar PV modules that interact with the SBMS and the algorithm according to which the proposed SBMS will operate. The SBMS algorithm, based on sorting the battery cells according to their SoC, resolves both challenges. Having this promising theoretical starting point, a working prototype was developed. The prototype worked as expected and was tested under field conditions, being integrated into the power grid as part of a virtual power plant.

关键词： Self-Reconfigurable Switching BMS Solar Photovoltaic Efficiency

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A Hybrid Backward Euler Control Volume Method to Solve the Concentration-Dependent Solid-State Diffusion Problem in Battery Modeling

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Journal of Applied Mathematics and Physics 2020年第6期8卷 1066-1080页

作者： Kudakwashe Chayambuka Grietus Mulder dmitri l. danilov Peter H. l. Notten VITO Mol Belgium EnergyVille Genk Belgium Eindhoven University of Technology Eindhoven Netherlands Forschungszentrum Jülich Fundamental Electrochemistry (IEK-9) Jülich Germany University of Technology Sydney Broadway Sydney NSW Australia

Several efficient analytical methods have been developed to solve the solid-state diffusion problem, for constant diffusion coefficient problems. However, these methods cannot be applied for concentration-dependent diffusion coefficient problems and numerical methods are used instead. Herein, grid-based numerical methods derived from the control volume discretization are presented to resolve the characteristic nonlinear system of partial differential equations. A novel hybrid backward Euler control volume (HBECV) method is presented which requires only one iteration to reach an implicit solution. The HBECV results are shown to be stable and accurate for a moderate number of grid points. The computational speed and accuracy of the HBECV, justify its use in battery simulations, in which the solid-state diffusion coefficient is a strong function of the concentration.

关键词： Solid-State Diffusion Implicit Methods Backward Euler

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Thermal Modeling of Cylindrical liFePO<sub>4</sub>Batteries

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Journal of Modern Physics 2013年第7期4卷 1-7页

作者： Mojtaba Shadman Rad dmitri l. danilov Morteza Baghalha Mohammad Kazemeini Peter H. l. Notten 1Department of Chemistry and Chemical Engineering Eindhoven University of Technology Eindhoven The Netherlands 2Chemical & Petroleum Engineering Department Sharif University of Technology Tehran Iran 1Department of Chemistry and Chemical Engineering Eindhoven University of Technology Eindhoven The Netherlands 2Department of Electrical Engineering Eindhoven University of Technology Eindhoven The Netherlands Chemical & Petroleum Engineering Department Sharif University of Technology Tehran Iran Department of Chemistry and Chemical Engineering Eindhoven University of Technology Eindhoven The Netherlands

Thermal management of li-ion batteries is important because of the high energy content and the risk of rapid temperature development in the high current range. Reliable and safe operation of these batteries is seriously endangered by high temperatures. It is important to have a simple but accurate model to evaluate the thermal behavior of batteries under a variety of operating conditions and be able to predict the internal temperature as well. To achieve this goal, a radial-axial model is developed to investigate the evolution of the temperature distribution in cylindrical li-ion cells. Experimental data on liFePO4 cylindrical li-ion batteries are used to determine the overpotentials and to estimate the State-of-Charge-dependent entropies from the previously developed adaptive thermal model [1]. The heat evolution is assumed to be uniform inside the battery. Heat exchange from the battery surfaces with the ambient is non-uniform, i.e. depends on the temperature of a particular point at the surface of the cell. Furthermore, the model was adapted for implementation in battery management systems. It is shown that the model can accurately predict the temperature distribution inside the cell in a wide range of operating conditions. Good agreement with the measured temperature development has been achieved. Decreasing the heat conductivity coefficient during cell manufacturing and increasing the heat transfer coefficient during battery operation suppresses the temperature evolution. This modified model can be used for the scale-up of large size batteries and battery packs.

关键词： lithium-Ion Batteries Thermal Modeling Entropy Energy Electrochemistry Heat Transfer

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One-Dimensional(1-D) Nanoscale Heterostructures

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Journal of Materials Science & Technology 2008年第4期24卷 541-549页

作者： Guozhen SHEN Di CHEN Yoshio BANDO dmitri GOlBERG National Institute for Materials Science Tsukuba 305-0044 Ibaraki Japan Department of Electrical Engineering University of Southern California Los Angeles CA 90089 USA

One-dimensional （l-D） nanostructures have been attracted much attention as a result of their exceptional properties, which are different from bulk materials. Among 1-D nanostructures, 1-D heterostructures with modulated compositions and interfaces have recently become of particular interest with respect to potential applications in nanoscale building blocks of future optoelectronic devices and systems. Many kinds of methods have been developed for the synthesis of 1-D nanoscale heterostructures. This article reviews the most recent development, with an emphasize on our own recent efforts, on 1-D nanoscale heterostructures, especially those synthesized from the vapor deposition methods, in which all the reactive precursors are mixed together in the reaction chamber. Three types of 1-D nanoscale heterostructures, defined from their morphologies characteristics, are discussed in detail, which include 1-D co-axial core-shell heterostructures, 1-D segmented heterostructures and hierarchical heterostructures. This article begins with a brief survey of various methods that have been developed for synthesizing 1-D nanoscale heterostructures and then mainly focuses on the synthesis, structures and properties of the above three types of nanoscale heterostructures. Finally, this review concludes with personal views towards the topic of 1-D nanoscale heterostructures.

关键词： Nanostructures Heterostructures One-dlmenslonal Chemical vapor deposition

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li-intercalation in Silicon Anodes:A Challenging Route Towards 3D-Integrated All-solid-state Batteries

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复旦学报（自然科学版） 2007年第5期46卷 688-页

作者： P.H.l.Notten l.Baggetto R.A.H.Niessen D.danilov Eindhoven University of Technology Philips Research laboratories

1 Results Micro-batteries are expected to become more and more important in numerous small-sized devices,like medical implantables,biosensors,hearing aids and autonomous network *** for these electronic applications is that they have to operate autonomously and *** to these requirements thin film power sources need to be rechargeable,mechanically stable for a long period of time and have a long cycle *** the average energy consumption of these future devices will be rathe...

关键词： li-ion batteries 3D-integration All-solid-state

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Osteogenesis imperfecta mutations in plastin 3 lead to impaired calcium regulation of actin bundling

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Bone Research 2020年第3期8卷 320-332页

作者： Christopher l.Schwebach Elena Kudryashova Weili Zheng Matthew Orchard Harper Smith lucas A.Runyan Edward H.Egelman dmitri S.Kudryashov Department of Chemistry and Biochemistry The Ohio State UniversityColumbusOH 43210USA Molecular Cellular and Developmental Biology graduate program The Ohio State UniversityColumbusOH 43210USA Department of Biochemistry and Molecular Genetics University of VirginiaCharlottesvilleVA 22908USA Biophysics graduate program The Ohio State UniversityColumbusOH 43210USA

Mutations in actin-bundling protein plastin 3(PlS3)emerged as a cause of congenital osteoporosis,but neither the role of PlS3 in bone development nor the mechanisms underlying PlS3-dependent osteoporosis are *** the over 20 identified osteoporosis-linked PlS3 mutations,we investigated all five that are expected to produce full-length *** of the mutations distorted an actin-binding loop in the second actin-binding domain of PlS3 and abolished F-actin bundling as revealed by cryo-EM reconstruction and protein interaction ***,the remaining four mutants fully retained F-actin bundling ***,they displayed defects in Ca2+sensitivity:two of the mutants lost the ability to be inhibited by Ca2+;while the other two became hypersensitive to *** group of the mutants with similar biochemical properties showed highly characteristic cellular ***-type PlS3 was distributed between lamellipodia and focal *** striking contrast,the Ca2+-hyposensitive mutants were not found at the leading edge but localized exclusively at focal adhesions/stress fibers,which displayed reinforced ***,the Ca2+-hypersensitive PlS3 mutants were restricted to lamellipodia,while chelation of Ca2+caused their redistribution to focal ***,the bundling-deficient mutant failed to co-localize with any F-actin structures in cells despite a preserved F-actin binding through a non-mutation-bearing actin-binding *** findings revealed that severe osteoporosis can be caused by a mutational disruption of the Ca2+-controlled PlS3’s cycling between adhesion complexes and the leading *** of the structural,biochemical,and cell biology insights enabled us to propose a molecular mechanism of plastin activity regulation by Ca2+.

关键词： cycling impaired striking

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Boron nitride nanotube growth via boron oxide assisted chemical vapor transport-deposition process using liNO3 as a promoter

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Nano Research 2015年第6期8卷 2063-2072页

作者： Andrei T. Matveev Konstantin l. Firestein Alexander E. Steinman Andrey M. Kovalskii Oleg I. lebedev Dmitry V. Shtansky dmitri Golberg National University of Science and Technology 'MISIS' leninskiy prospect 4 Moscow 119049 Russia CRISMAT UMR 6508 CNRS-ENSICAEN 6BdMarechalJuin Caen 14050 France Institute for Materials Science (NIMS) Namiki 1 Ibaraki Tsukuba 3050044 Japan

High-purity straight and discrete multiwalled boron nitride nanotubes （BNNTs） were grown via a boron oxide vapor reaction with ammonia using liNO3 as a promoter. Only a trace amount of boron oxide was detected as an impurity in the BNNTs by energy-dispersive X-ray （EDX） and Raman spectroscopies. Boron oxide vapor was generated from a mixture of B, FeO, and MgO powders heated to 1,150 ℃, and it was transported to the reaction zone by flowing ammonia. lithium nitrate was applied to the upper side of a BN bar from a water solution. The bar was placed along a temperature gradient zone in a horizontal tubular furnace. BNNTs with average diameters of 30-50 nm were mostly observed in a temperature range of 1,280-1,320 ℃. At higher temperatures, curled polycrystalline BN fibers appeared. Above 1,320 ℃, the number of BNNTs drastically decreased, whereas the quantity and diameter of the fibers increased. The mechanism of BNNT and fiber growth is proposed and discussed.

关键词： boron nit-ride nanotubes CVD lithium nitrate lithium borate BNNT growth mechanism

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Revealing the nature of optical activity in carbon dots produced from different chiral precursor molecules

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light(Science & Applications) 2022年第5期11卷 855-867页

作者： Ananya Das Evgeny V.Kundelev Anna A.Vedernikova Sergei A.Cherevkov Denis V.danilov Aleksandra V.Koroleva Evgeniy V.Zhizhin Anton N.Tsypkin Aleksandr P.litvin Alexander V.Baranov Anatoly V.Fedorov Elena V.Ushakova Andrey l.Rogach Center of Information Optical Technologies ITMO UniversitySaint Petersburg 197101Russia Research Park Saint Petersburg State UniversitySaint Petersburg 199034Russia laboratory of Femtosecond Optics and Femtotechnology ITMO UniversitySaint Petersburg 197101Russia laboratory of Quantum Processes and Measurements ITMO UniversitySaint Petersburg 197101Russia Department of Materials Science and Engineering and Centre for Functional Photonics(CFP)City University of Hong KongKowloonHong Kong SAR 999077China Shenzhen Research Institute City University of Hong KongShenzhen 518057China

Carbon dots(CDs)are light-emitting nanoparticles that show great promise for applications in biology and medicine due to the ease of fabrication,biocompatibility,and attractive optical *** chirality,on the other hand,is an intrinsic feature inherent in many objects in nature,and it can play an important role in the formation of artificial complexes based on CDs that are implemented for enantiomer recognition,site-specific bonding,*** employed a one-step hydrothermal synthesis to produce chiral CDs from the commonly used precursors citric acid and ethylenediamine together with a set of different chiral precursors,namely,l-isomers of cysteine,glutathione,phenylglycine,and *** resulting CDs consisted of O,N-doped(and also S-doped,in some cases)carbonized cores with surfaces rich in amide and hydroxyl groups;they exhibited high photoluminescence quantum yields reaching 57%,chiral optical signals in the UV and visible spectral regions,and two-photon *** signals of CDs were rather complex and originated from a combination of the chiral precursors attached to the CD surface,hybridization of lower-energy levels of chiral chromophores formed within CDs,and intrinsic chirality of the CD *** DFT analysis,we showed how incorporation of the chiral precursors at the optical centers induced a strong response in their circular dichroism *** optical characteristics of these CDs,which can easily be dispersed in solvents of different polarities,remained stable during pH changes in the environment and after UV exposure for more than 400 min,which opens a wide range of bio-applications.

关键词： properties chiral carbon

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