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The dynamic evolution of aggregated lithium dendrites in lithium metal batteries

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Chinese Journal of Chemical Engineering 2021年第9期34卷 137-143页

作者： Xin Shen Rui Zhang Shuhao Wang Xiang Chen Chuan Zhao Elena Kuzmina Elena Karaseva vladimir kolosnitsyn Qiang Zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China School of Chemistry The University of New South WalesSydneyNSW 2052Australia Ufa Institute of Chemistry UFRC RAS Ufa450054Russia

Lithium(Li)metal anodes promise an ultrahigh theoretical energy density and low redox potential,thus being the critical energy material for next-generation ***,the formation of Li dendrites in Li metal anodes remarkably hinders the practical applications of Li metal ***,the dynamic evolution of discrete Li dendrites and aggregated Li dendrites with increasing current densities is visualized by in-situ optical microscopy in conjunction with ex-situ scanning electron *** revealed by the phase field simulations,the formation of aggregated Li dendrites under high current density is attributed to the locally concentrated electric field rather than the depletion of Li *** specifically,the locally concentrated electric field stems from the spatial inhomogeneity on the Li metal surface and will be further enhanced with increasing current *** the above two factors with the help of the constructed phase field model is able to regulate the electrodeposited morphology from aggregated Li dendrites to discrete Li dendrites,and ultimately columnar Li *** methodology and mechanistic understanding established herein give a significant step toward the practical applications of Li metal anodes.

关键词： Electrochemistry Li dendrites Rechargeable Li batteries In-situ optical microscopy Phase field model Electrochemical engineering

A review of solid-state lithium metal batteries through in-situ solidification

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Science China Chemistry 2024年第1期67卷 67-86页

作者： Pan Xu Zong-Yao Shuang Chen-Zi Zhao Xue Li Li-Zhen Fan Aibing Chen Haoting Chen Elena Kuzmina Elena Karaseva vladimir kolosnitsyn Xiaoyuan Zeng Peng Dong Yingjie Zhang Mingpei Wang Qiang Zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093China Institute of Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018China Ordos Carbon Neutral Research and Application Co. Ltd.Ordos City 017010China Ufa Institute of Chemistry UFRC RAS Ufa 450054Russia Institute for Carbon Neutrality Tsinghua UniversityBeijing 100084China Shanxi Research Institute for Clean Energy Tsinghua UniversityTaiyuan 030032China

High-energy-density lithium metal batteries are the next-generation battery systems of choice,and replacing the flammable liquid electrolyte with a polymer solid-state electrolyte is a prominent conduct towards realizing the goal of high-safety and high-specific-energy ***,the inherent intractable problems of poor solid-solid contacts between the electrode/electrolyte and the growth of Li dendrites hinder their practical *** in-situ solidification has demonstrated a variety of advantages in the application of polymer electrolytes and artificial interphase,including the design of integrated polymer electrolytes and asymmetric polymer electrolytes to enhance the compatibility of solid–solid contact and compatibility between various electrolytes,and the construction of artificial interphase between the Li anode and cathode to suppress the formation of Li dendrites and to enhance the high-voltage stability of polymer *** review firstly elaborates the history of in-situ solidification for solid-state batteries,and then focuses on the synthetic methods of solidified ***,the recent progress of in-situ solidification technology from both the design of polymer electrolytes and the construction of artificial interphase is summarized,and the importance of in-situ solidification technology in enhancing safety is ***,prospects,emerging challenges,and practical applications of in-situ solidification are envisioned.

关键词： in-situ solidification polymer electrolyte artificial solid electrolyte interphase rechargeable lithium metal batteries dendrite-free lithium metal anode

A perspective on energy chemistry of low-temperature lithium metal batteries

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iEnergy

iEnergy 2022年第1期1卷 72-81页

作者： He Liu Xinbing Cheng Chong Yan Zeheng Li Chenzi Zhao Rong Xiang Hong Yuan Jiaqi Huang Elena Kuzmina Elena Karaseva vladimir kolosnitsyn Qiang Zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China School of Chemistry and Materials Science Nanjing University of Information Science&TechnologyNanjing 210044China Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 211189China Shanxi Research Institute for Clean Energy Tsinghua UniversityTaiyuan 030032China State Key Labor-atory of Automotive Safety and Energy School of Vehicle and MobilityTsinghua UniversityBeijing 100084China Department of Mechanic-al Engineering The University of TokyoTokyo 113-8656Japan Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Ufa Institute of Chemistry UFRC RAS Ufa 450054Russia

Dendrite growth of lithium(Li)metal anode severely hinders its practical application,while the situation becomes more serious at low temperatures due to the sluggish kinetics of Liion *** perspective is intended to clearly understand the energy chemistry of lowtemperature Li metal batteries(LMBs).The lowtemperature chemistries between LMBs and traditional Liion batteries are firstly compared to figure out the features of the lowtemperature *** deposition behaviors at low temperatures are then discussed concerning the variation in Liion diffusion behaviors and solid electrolyte interphase(SEI)***,the strategies to enhance the diffusion kinetics of Li ions and suppress dendrite growth including designing electrolytes and electrode/electrolyte interfaces are ***,conclusions and outlooks are drawn to shed lights on the future design of highperformance lowtemperature LMBs.

关键词： Lithium metal anode lithium dendrite low temperature solid electrolyte interphase(SEI) ion-solvent complex organic elec-trolyte

LiC_(6)在复合锂负极中的作用、形成和表征

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新型炭材料（中英文） 2023年第4期38卷 641-658页

作者：薛州晴王子游张俊东卢洋黄文泽陈爱兵赵辰孜 Kuzmina Elena Karaseva Elena kolosnitsyn vladimir 范丽珍张强北京理工大学材料学院北京100081 北京理工大学前沿交叉科学研究院北京100081 清华大学化学工程系绿色化学反应工程与技术北京市重点实验室北京100084 清华大学探微书院北京100084 河北科技大学化学与制药工程学院河北石家庄050018 俄罗斯科学院乌法化学研究所乌法450054 北京科技大学新材料技术研究院北京100083

锂金属电池(LMB)被认为是最有前景的下一代储能系统之一。然而,其实际应用存在极大的体积变化和锂枝晶的形成等重大挑战。为了应对这些挑战,引入炭材料的复合锂负极因其优异的化学和电化学稳定性以及在重复循环过程中的优异机械强度引... 详细信息

锂金属电池(LMB)被认为是最有前景的下一代储能系统之一。然而,其实际应用存在极大的体积变化和锂枝晶的形成等重大挑战。为了应对这些挑战,引入炭材料的复合锂负极因其优异的化学和电化学稳定性以及在重复循环过程中的优异机械强度引起了极大关注。本文旨在全面概述锂化石墨(LiC_(6))的形成及其在锂沉积和剥离过程中在体相和界面区域的作用。在体相中,LiC_(6)表现出优异的亲锂性能,降低了锂成核的过电位并促进锂的均匀沉积。当在电极-电解质界面引入LiC_(6)时,它通过充当缓冲层来增强电极和电解质之间的接触,从而降低界面阻抗。最后,本文评述了锂碳复合负极发展的前景和挑战。

关键词：锂-碳复合负极锂化石墨(LiC_(6)) 亲锂化学锂枝晶生长锂沉积/剥离

The dynamic evolution of aggregated lithium dendrites in lithium metal batteries

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Incubation time fracture criterion for FEM simulations

Chinese Journal of Chemical Engineering 2021年第9期

作者： Xin Shen Rui Zhang Shuhao Wang Xiang Chen Chuan Zhao Elena Kuzmina Elena Karaseva vladimir kolosnitsyn Qiang Zhang

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Acta Mechanica Sinica 2011年第4期27卷 541-549页

作者： vladimir Bratov Institute for Problem in Mechanical Engineering of the Russian Academy of Sciences Bolshoj pr.V.O.61199178St.-PetersburgRussia

The paper is discussing problems connected with embedment of the incubation time criterion for brittle fracture into finite element computational schemes. Incubation time fracture criterion is reviewed; practical questions of its numerical implementation are extensively discussed. Several examples of how the incubation time fracture criterion can be used as fracture condition in finite element computations are given. The examples include simulations of dynamic crack propagation and arrest, impact crater formation （i.e. fracture in initially intact media）, spall fracture in plates, propagation of cracks in pipelines. Applicability of the approach to model initiation, development and arrest of dynamic fracture is claimed.

关键词： Fracture dynamics Incubation time Crack dy-namics Finite element method Fracture arrest

Features of Electroplastic Effect in Alloys with Martensite Transformation

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Acta Metallurgica Sinica(English Letters) 2018年第12期31卷 1305-1310页

作者： vladimir Stolyarov Mechanical Engineering Research Institute RussianAcademy of SciencesM.Kharitonievsky4MoscowRussia 101990 National Research Nuclear University MEPhI MoscowRussia

Influence of different electric current modes （pulse and direct） on occurrence of the electroplastic effect under uniaxialtension in the coarse-grained alloys with martensite transformations is investigated. The materials are shape memoryTi49.3Niso.7 alloy and metastable austenite transformation-induced plasticity （TRIP） steel. The paper contains experimentalresults of current impact on the ＂stress-strain＂ curves of the material. It has been taken an experimental measurement ofthe sample temperature during the test. It is shown that the shape of a stress-strain curves and type of the serrate plasticflow, connected with the martensitic transformation and electroplastic effect, depend on the current modes. Impact of pulsecurrent and direct current suppresses shape memory and TRIP effect.

关键词： Electroplastic effect TRIP effect Pulse current Deformation Martensite transformation Tension

Thermoelectric and electrical characteristics of SmS ceramic samples after exposure to a pulsed magnetic field

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Journal of Rare Earths 2022年第11期40卷 1778-1784,I0004页

作者： Ivan Volchkov Evgeniy Baskakov vladimir Strelov vladimir Kanevskii FSRC"Crystallography and Photonics"RAS Leninskiy Prospekt 59119333MoscowRussia

Samarium monosulfide(SmS)is a promising material for creating thermoelectric generators(TEG),gas sensors and strain *** the high values of the generated thermo electromotive force(TEMF)(α≈170-350μV/K),methods for increasing the efficiency of TEGs based on SmS are of considerable *** of these methods can be short-term effects of magnetic fields,including pulsed ones,on these *** action of a pulsed magnetic field(PMF)leading to an increase in TEMF(U)of SmS ceramic samples is *** that are not subjected to high frequency currents(HFC)annealing show an increase in UT of 44.54%-62.18%(from 11.9 to 17.2-19.3 mV).The conductivity(σ)of the samples is~22 Q/cm and is insensitive to short-term exposure to a *** that undergo HFC annealing show an increase in Uof 23.47%-41.31%(from 21.3 to 26.3-30.1 mV)after exposure to a *** conductivity of the samples is~15Ω^(-1)/cm and after a short exposure to the PMF is changing nonmo notonically,with an increase in the overall *** difference in the values of Uand a can be explained by presence of an ordered grain structure and a significant amount of the Sm_(2)O_(2)S phase in the samples subjected to HFC *** mechanisms of the observed changes are discussed.

关键词： Rare earths Thermoelectric Electric properties Magnetically induced changes Samarium monosulfide

Integer Codes Correcting Single Errors and Random Asymmetric Errors within a Byte

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Journal of Systems Science & Complexity 2020年第6期33卷 2103-2113页

作者： RADONJIC Aleksandar VUJICIC vladimir Institute of Technical Sciences of the Serbian Academy of Sciences and Arts BelgradeSerbia

In optical networks without optical amplifiers(ONWOAs) photons may fade or fail to be detected, but new photons cannot be generated. Hence, under normal conditions, only 1 → 0 errors can occur. However, in some situations, the photodetector may generate a false 0 → 1 error. This mostly occurs in cases when the dark current is higher than specified. With this in mind, in this paper,the authors present a class of codes suitable for use in ONWOAs using self-synchronous *** presented codes can correct single errors and random asymmetric(1 → 0) errors within a b-bit byte. Unlike classical codes, these codes use integer and lookup table operations. As a result, their interleaved version, implemented on a dual-core 3.0 GHz processor, achieves the theoretical throughput above the operating rate of 10 G networks.

关键词： Asymmetric errors decoding throughput integer codes optical networks single errors