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Root cause of co.rosion failure of tin co.ting on wire clamp in marine atmosphere

Journal of Iron and Steel Research International 2024年第4期31卷 998-1014页

作者： Zhen Zhong Wang-yan Ly Teng-yuan Liu Yi Xie Yang Yang Zhen-zhu Wang Deng-ke Li Xiao-bo Li Tang-qing Wu School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105HunanChina Electric Power Research Institute of Guangdong Power Grid co. Ltd.Guangzhou 510080GuangdongChina Shenyang National L aboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina School of Materials Science and Engineering.University of Science and technology of China Shenyang 110016LiaoningChina Electric Power Research Institute State Grid Hunan Electric Power CompanyChangsha 410007HunanChina School of Mechanical Engineering and Mechanics Xiangtan UniversityXiangtan 411105HunanChina School of Information Science and Engineering Changsha Normal UniversityChangsha 410199HunanChina

The failure cause of a tinned co.per wire clamp in marine atmosphere was studied systematically by X-ray photoelectron spectrosco.y,scanning electron microsco.y with energy dispersive spectrosco.y and electrochemical *** main co.ponents of the green rust on the surface of the damaged wire clamp are SnO_(2),CuO,Cu_(2)Cl(OH)_(3) and Cuco.OH)_(2).Much of green rust distributes at the platform edge along the axial direction on the crimp co.nection,and severe co.rosion and co.rosion pits occur at the platform edge zone along the axial *** enriching Cl-at the marine atmosphere and the existing O_(2) in air co.lectively enhance the co.rosion process of the tin co.ting and the co.per *** element model results show that the residual stress and strain of the tin co.ting are the largest at the platform edge along the axial direction on the crimp co.nection,and the co.responding electrode potential of the tin co.ting at this zone drops *** above results indicate that the residual strain increases the driving force of the co.rosion electrochemical reactions and accelerates the co.rosion rate and the pit co.rosion of the tin co.ting at this zone.

关键词： Tin co.ting Marine atmosphere Residual strain-Chloride ion co.rosion failure

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Hollow and Hierarchical Cuco.LDH Nanocatalyst for Boosting Sulfur Electrochemistry in Li-S Batteries

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energy Material Advances 2023年第1期4卷 220-231页

作者： Min Li Yebao Li Qiao Cu Yan Li Hongyang Li Zihao Li Ming Li Hua Liao Ge Li Gaoran Li Xin Wang South China Academy of Advanced Optoelectronics International Academy of Optoelectronics at ZhaoqingSouth China Normal UniversityGuangzhou 510006China MIIT Key Laboratory of Advanced Display Materials and Devices College of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China Solar energy Research Institute Yunnan Normal UniversityKunming 650500YunnanChina Department of Mechanical Engineering University of Alberta9211-116 Street NWEdmontonAlberta T6G 1H9Canada

lithium-sulfur batteries(LSBs)are promising candidates for next-generation high-efficiency energy storage,yet their practical implementation is seriously impeded by the parasitic shuttle effect and sluggish reaction ***,we develop a unique Cu,co.layered double hydroxide(Cuco.LDH)with a hollow and hierarchical structure as an advanced electrocatalyst to tackle these *** the co.positional,architectural,and chemical advantages,the as-developed Cuco.LDH enables facile charge transfer,fully exposed active interfaces,and strong interactions with polysulfides via metal-sulfur *** employed in the functional separator,a reliable polysulfide barrier can be established against the shuttling behavior,while the excellent catalytic activity realizes fast and efficient sulfur *** a result,the Cuco.LDH-based LSBs achieve a well-restrained capacity decay of 0.049%per cycle over 500 cycles together with a good rate capability up to 5 ***,a favorable areal capacity of 4.39 mAh cm^(-2) and decent cyclability are still attainable even under a high sulfur loading of 4.2 mg cm^(-2) and a low E/S ratio of 6 ml g^(−1).This work affords a feasible and instructive pathway toward advanced sulfur electrocatalysts as well as high-performance LSBs.

关键词： sulfur catalyst sulfide

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Aging Characteristics *** Resin Surface Under Repetitive Microseco.d Pulses in Air at Atmospheric Pressure

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Plasma Science and technology 2016年第3期18卷 325-330页

作者：谢庆刘熊章程王瑞雪饶章权邵涛 North China Electric Power University Baoding 071003China Institute of Electrical Engineering Chinese Academy of SciencesBeijing 100190China Electric Power Research Institute of Guangdong Power Grid co.Ltd. Guangzhou 510080China

Research on aging characteristics of epoxy resin （EP） under repetitive microseco.d pulses is important for the design of insulating materials in high power apparatus. It is because that very fast transient overvoltage always occurs in a power system, which causes flashover and is one of the main factors causing aging effects of EP materials. Therefore, it is essential to obtain a better understanding of the aging effect on an EP surface resulting from flashover. In this work, aging effects on an EP surface were investigated by surface flashover discharge under repetitive microseco.d pulses in atmospheric pressure. The investigations of parameters such as the surface micro-morphology and chemical co.position of the insulation material under different degrees of aging were co.ducted with the aid of measurement methods such as atomic force microsco.y （AFM）, scanning electron microsco.y （SEM）, and X-ray photoelectron spectrosco.y （XPS）. Results showed that with the accumulation of aging energy on the material surface, the particles formed on the material surface increased both in number and size, leading to the growth of surface roughness and a reduction in the water co.tact angle; the surface also became more absorbent. Furthermore, in the aging process, the molecular chains of EP on the surface were broken, resulting in oxidation and carbonisation.

关键词： microseco.d pulses surface flashover epoxy resin aging characteristics

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Roadmap for rechargeable batteries:present and beyond

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Science China Chemistry 2024年第1期67卷 13-42页

作者： Sen Xin Xu Zhang Lin Wang Haijun Yu Xin Chang Yu-Ming Zhao Qinghai Meng Pan Xu Chen-Zi Zhao Jiahang Chen Huichao Lu Xirui Kong Jiulin Wang Kai Chen Gang Huang Xinbo Zhang Yu Su Yao Xiao Shu-Lei Chou Shilin Zhang Zaiping Guo Aobing Du Guanglei Cui Gaojing Yang Qing Zhao Liubing Dong Dong Zhou Feiyu Kang Hu Hong Chunyi Zhi Zhizhang Yuan Xianfeng Li Yifei Mo Yizhou Zhu Dongfang Yu Xincheng Lei Jianxiong Zhao Jiayi Wang Dong Su Yu-Guo Guo Qiang Zhang Jun Chen Li-Jun Wan CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China University of Chinese Academy of Sciences.Beijing 100049 China Institute of Advanced Battery Materials and Devices Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Key Laboratory of Advanced Functional Materials Ministry of EducationBeijing University of TechnologyBeijing 100124China Beijing Key Laboratory of Green Chemical Reaction Engineering and technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of Chemistry and Utilization of Carbon-Based energy Resources College of ChemistryXinjiang UniversityUrumqi 830046China Department of Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChangchun 130022China Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaide 5000Australia Qingdao Industrial energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Frontiers Science Center for New Organic Matter Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)College of ChemistryNankai UniversityTianjin 300071China co.lege of Chemistry and Materials Science Jinan UniversityGuangzhou 511443China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China Division of energy Storage Dalian National Laboratory for Clean Energy(DNL)Dalian Institute of Chem

Rechargeable batteries currently hold the largest share of the electrochemical energy storage market,and they play a major role in the sustainable energy transition and industrial decarbonization to respond to global climate *** to the increased popularity of co.sumer electronics and electric vehicles,lithium-ion batteries have quickly beco.e the most successful rechargeable batteries in the past three decades,yet growing demands in diversified application scenarios call for new types of rechargeable *** efforts are made to developing the next-generation post-Li-ion rechargeable batteries,which include,but are not limited to solid-state batteries,lithium–sulfur batteries,sodium-/potassium-ion batteries,organic batteries,magnesium-/zinc-ion batteries,aqueous batteries and flow *** the great achievements,challenges persist in precise understandings about the electrochemical reaction and charge transfer process,and optimal design of key materials and interfaces in a *** roadmap tends to provide an overview about the current research progress,key challenges and future prospects of various types of rechargeable *** co.putational methods for materials development,and characterization techniques will also be discussed as they play an important role in battery research.

关键词： energy storage rechargeable batteries battery materials electrochemistry

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One-step synthesis of robust carbon nanotube foams with ultrahigh surface area for high-performance lithium ion battery

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Science China(Technological Sciences) 2019年第3期62卷 464-471页

作者： YU PengCheng YUAN YanChao School of Chemistry and Chemical Engineering South China University of Technology School of Materials Science and Engineering South China University of Technology

A novel three-dimensional(3D) carbon nanotube foams(CNTF) with ultrahigh specific surface area have been fabricated through a unique but facile one-step synthesis by using co.2 as both carbon source and activating agent. The activation temperature and time have been adjusted, and the best sample demonstrates a specific surface area of 1959.8 m^2 g^(–1) and a total pore volume of 3.23 cm^3 g^(–1). A reversible capacity of about 870 mAhg^(–1) is maintained at 50 mAg^(–1) when the CNTF used as cathode materials. Meanwhile, the capacity is as large as 320 mAhg^(–1) at the current density of 2 A g^(–1) and the capacity retention is nearly 100% after 500 cycles. These excellent and highly stable battery performances should be attributed to the structural advantages of as-synthesized CNTFs generated by using a facile co.2-assisted strategy, which may potentially be applied in large scale production of porous 3D carbon materials in the fields of energy storage and co.version.

关键词： carbon nanotube foam co.-assisted activation ultrahigh surface area lithium ion battery

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Facile Li-Al layered double hydroxide films on Al alloy for enhanced hydrophobicity, anti-biofouling and anti-co.rosion performance

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Journal of Materials Science & technology 2021年第20期79卷 230-242页

作者： Ji Li Tianci Yuan Chengliang Zhou Bo Chen Yi Shuai Dawang Wu Dongchu Chen Xiaohu Luo Y.Frank Cheng Yali Liu State Key Laboratory for Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha410082China Department of Mechanical and Manufacturing Engineering University of CalgaryCalgaryAlbertaT2N 1N4Canada School of Chemistry and Chemical Engineering Qiannan Normal University for NationalitiesDuyun558000China co.lege of Mechanical Engineering and Applied Electronics technology Beijing University of TechnologyBeijing100124China School of Material Science and energy Engineering Foshan UniversityFoshan528000China

In this work,lithium(Li)-aluminum(Al)layered double hydroxide(LDH)films modified by 4-amino-2-((hydrazine methylene)amino)-4-oxobutanoic acid(denoted as AOA acid)and/or 1H,1H,2H,2H-perfluorooctyltriethoxysilane were prepared on 6N01 Al alloy by a facile,in-situ growth method with enhanced hydrophobicity,anti-biofouling and anti-co.rosion *** preparation is low energy co.sumptive and environment friendly,relying on self-assembly at ambient *** structure,molecular weight and functional groups of the synthesized AOA acid were characterized by NMR spectrometer,ESI-MS spectrometer and Fourier transform infrared(FT-IR)*** the co.positions,structure and morphology of the films were characterized by Fourier transform infrared(FT-IR)spectrosco.y,glancing-angle X-ray diffraction(GA-XRD),X-ray photoelectron spectrosco.y(XPS),field emission scanning electron microsco.y(FE-SEM)and energy-dispersive x-ray spectrum(EDS).Water co.tact angle measurements(CA)and atomic force microsco.y(AFM)characterization show that the films possess a micro/nanostructure with an improved *** test,neutral salt tests(NSS)and electrochemical impedance spectrosco.y(EIS)co.ducted in 3.5 wt.%NaCl solutions demonstrate the improved co.rosion resistance of the films over bare Al ***,the films also possess an excellent anti-bacterial property toEscherichia co.i,Bacillus subtilis and sulfate-reducing bacteria.

关键词： Li-Al layered double hydroxides Anti-biofouling Hydrophobicity Anti-bacterial Anti-co.rosion

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Synergistic O^(2-)/Li^(+) Dual Ion Transportation at Atomic Scale

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Research 2019年第1期2019卷 1260-1267页

作者： F.Q.Meng Q.H.Zhang A.Gao X.Z.Liu J.N.Zhang S.Y.Peng X.Lu L.Gu H.Li Beijing National Laboratory for co.densed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Materials Sun Yat-Sen UniversityGuangzhou 510275China co.lege of Materials Science and Engineering Jiangxi University of Science and TechnologyJiangxi 341000China Songshan Lake Materials Laboratory DongguanGuangdong 523808China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China

Te ion migration during electrochemical process is a fundamental scientifc issue for phase transition behavior and of technical importance for various functional devices,where cations or anions are active under electrical *** only one type of functional ion,O^(2-)or Li^(+),is activated due to their diferent migration energy barriers,co.perated by the valence change of other immobile ions in the host lattice matrix,e.g.,co.(2+)/co.(3+)and Mn^(3+)/Mn4+redox co.ples,owing to the charge *** we select spinel Li4Ti5O12 as anode and co.struct an all-solid-state battery under a transmission electron microsco.e;a synergistic transportation of O^(2-)and Li^(+)driven by an electrical bias was directly observed at the atomic scale.A small amount of oxygen anions was extracted frstly as a result of its lowest vacancy formation energy under 2.2 V,leading to the vertical displacement of *** to 2.7 V,an ordered phase with both Li-and O-defciency *** Li^(+)and O^(2-)ions are simultaneously extracted out from the[LiO_(4)]tetrahedra due to the electroneutrality *** migration paths of O and Li have been proposed and verifed by frst-principles *** results reveal a brand new synergistic ion migration manner and may provide up-to-date insights on the transportation process of lithium ion co.ductors.

关键词： synergistic battery migration

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Synthesis and Characterization of Mg_3(PO_4)_2-co.ted Li_(1.05)Ni_(1/3)Mn_(1/3)co.(1/3)O_2 Cathode Material for Li-ion Battery

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Journal of Wuhan University of technology(Materials Science) 2009年第3期24卷 347-353页

作者：陈玉红 Department of Chemical and Environmental Engineering Hebei Chemical & Pharmaceutical Vocational Technology Colege

Mg3（PO4）2-co.ted Li1.05Ni1/3Mn1/33co./3O2 cathode materials were synthesized via co.precipitation method. The morphology, structure, electrochemical performance and thermal stability were characterized by scanning electron microsco.y （SEM）, X-ray diffraction （XRD）, cyclic voltammetry（CV）, electrochemical impedance spectrosco.y（EIS）, charge/discharge cycling and differential scanning calorimeter （DSC）. SEM analysis shows that Mg3（PO4）2-co.ting changes the morphologies of their particles and increases the grains size. XRD and CV results show that Mg3（PO4）2-co.ting powder is homogeneous and has better layered structure than the bare one. Mg3（PO4）2-co.ting improved high rate discharge capacity and cycle-life performance. The reason why the cycling performance of Mg3（PO4）2-co.ted sample at 55 ℃ was better than that of room temperature was the increasing of lithium-ion diffusion rate and charge transfer rate with temperature rising. Mg3（PO4）2-co.ting improved the cathode thermal stability, and the result was co.sistent with thermal abuse tests using Li-ion cells： the Mg3（PO4）2 co.ted Li1.05Ni1/3Mn1/3co./3O2 cathode did not exhibit thermal runaway with smoke and explosion, in co.trast to the cells co.taining the bare Li1.05Ni1/3Mn1/3co./3O2.

关键词： lithium-ion batteries cathode materials Li1.05Ni1/3Mn1/3co./3O2 co.precipitation

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Single‐atomic co.B_(2)N_(2)sites anchored on carbon nanotube arrays promote lithium polysulfide co.version in lithium-sulfur batteries

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Carbon energy 2023年第11期5卷 31-43页

作者： Zhifeng Wang Yajing Yan Yongguang Zhang Yanxu Chen Xianyun Peng Xin Wang Weimin Zhao Chunling Qin Qian Liu Xijun Liu Zhongwei Chen Key Laboratory for New Type of Functional Materials in Hebei Province School of Materials Science and EngineeringHebei University of TechnologyTianjinChina Tianjin Key Lab for Photoelectric Materials&Devices Institute for New Energy Materials&Low‐Carbon TechnologiesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjinChina South China Academy of Advanced Optoelectronics International Academy of Optoelectronics at ZhaoqingSouth China Normal UniversityGuangdongChina Institute for Advanced Study Chengdu UniversityChengduSichuanChina MOE Key Laboratory of New Processing technology for Non‐Ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non‐Ferrous Metals and Featured MaterialsSchool of ResourceEnvironments and MaterialsGuangxi UniversityNanningChina Department of Chemical Engineering University of WaterlooWaterlooOntarioCanada

Due to low co.t,high capacity,and high energy density,lithium–sulfur(Li–S)batteries have attracted much attention;however,their cycling performance was largely limited by the poor redox kinetics and low sulfur ***,predicted by density functional theory calculations,single‐atomic co.B2N2 site‐imbedded boron and nitrogen co.doped carbon nanotubes(SA‐co.BNC)were designed to acco.plish high sulfur loading,fast kinetic,and long service period Li–S *** proved that co.B2N2 atomic sites can effectively catalyze lithium polysulfide ***,the electrodes delivered a specific capacity of 1106 mAh g−1 at 0.2 C after 100 cycles and exhibited an outstanding cycle performance over 1000 cycles at 1 C with a decay rate of 0.032%per *** study offers a new strategy to co.ple the co.bined effect of nanocarriers and single‐atomic catalysts in novel co.rdination environments for high‐performance Li–S batteries.

关键词： carbon nanotubes co.rdination environment engineering density functional theory calculation lithium-sulfur batteries single‐atom catalys

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co.parison Study on Anode Materials of lithium-Ion Battery Applied in Tibet

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Journal of Power and energy Engineering 2019年第12期7卷 42-50页

作者： guangzhou Zhang Heming Deng Buqiong Xiao Tianyu Hou Yue Song Nima Shida Hang Qi Anat Deepatana Shun Tang State Grid Electric Power Research Institute Wuhan China 430074 Electric Power Research Institute of Xizang Electric Power co. Ltd. Lhasa China Faculty of Engineering Burapha University Chon Buri Thailand State Key Laboratory of Advanced Electromagnetic Engineering and technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan China

lithium-ion battery is facing the capacity fade in co.d area. It reports in this paper to improve the temperature-tolerance using the novel materials in the battery design. Mesophase carbon microspheres (MG11) co.posed of 2H + 3R graphite phase with more uniform size were used as anode material and a new binder (WRA268) was used. The tests results show that at 0°C, MG11 using co.ventional binder (styrene butadiene rubber, SBR) attains 66% of reversible capacity retention rate, and synthetic graphite (FSN-1) using WRA268 as binder attains 76.9% of reversible capacity retention rate, but it attains 34% for the FSN-1 using SBR as the binder. These results show that MG11-WRA268 is promising materials using for battery in co.d areas such as Tibet.

关键词： lithium-Ion Battery Anode co.d Area energy Storage

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