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Recent progress and perspective on lithium metal battery with nickel-rich layered oxide cathode

eScience 2024年第6期4卷 75-87页

作者： Han Zhang Ziqi Zeng Shijie Cheng Jia Xie State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

The pairing of lithium metal anode(LMA)with Ni-rich layered oxide cathodes for constructing lithium metal batteries(LMBs)to achieve energy density over 500 Wh kg^(-1) receives significant attention from both industry and the scientific ***,notorious problems are exposed in practical conditions,including lean electrolyte/capacity(E/C)ratio(<3 g(Ah)^(-1)),high cathode mass loading(>3 mAh cm^(-2)),and low negative/positive(N/P)ratio(<3),which creates a significant disparity between the current performance of LMBs and the desired requirements for commercial *** the review,we present a summary of the recent achievements made in understanding the mechanistic degradation of LMA,followed by practical strategies that are utilized to address these *** also consider the detrimental issues of Ni-rich layered oxide ***,we highlight current progresses in the field of practical LMBs in coin/pouch cells to stimulate further *** the end,we propose the issues and prospects for development from the perspective of practical LMBs.

关键词： Lithium metal anode Ni-rich layered oxide cathodes Lithium metal batteries Practical conditions Cyclic performance High energy density

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Improvement of AlN Thermal Conductivity Based on Reductive Compound Additives

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Journal of Wuhan University of technology(materials Science) 2023年第5期38卷 1025-1033页

作者： LI Meijuan WANG Chuanyi WANG Gaoqiang WANG Chuanbin SHEN Qiang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Chemistry Chemical Engineering and Life SciencesWuhan University of TechnologyWuhan 430070China Nanchong Three-circle Electronics Co.LTD. Nanchong 637100China

AlN ceramics were prepared by plasma activation sintering(PAS)with compound additives yttrium acetylacetonate(Y(acac)_(3))and melamine(C_(3)H_(6)N_(6)).The effects of compound additives on the microstructure,density,and thermal properties of Al N ceramic were studied.Y(acac)3and C_(3)H_(6)N_(6)can form Y_(2)O_(3),residual organic carbon and reducing gas during the heating process,which improves the Al N sintering performance at a temperature of 1700℃and the bulk thermal *** the content of Y(acac)_(3)is 10 wt%and C_(3)H_(6)N_(6)is 3 wt%,the thermal conductivity of Al N ceramics is 105.6 W/(m·K),which is much higher than that of Al N ceramics with Y_(2)O_(3)under the same sintering *** work provides theoretical reference for the preparation of high-performance Al N ceramic.

关键词： reductive compound additives AlN ceramic thermal conductivity:plasma activated sintering

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Catalytic hosts with strong adsorption strength for long shelf-life lithium-sulfur batteries under lean electrolyte

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Nano Research 2023年第1期16卷 427-438页

作者： Siyuan Zhao Huayu Pei Quan Yang Kangli Liu Yuanyuan Huang Zhuo Wang Guosheng Shao Jinping Liu Junling Guo State Center for International Cooperation on Designer Low-carbon&Environmental Materials School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China Zhengzhou Materials Genome Institute Xingyang 450100China School of Chemistry Chemical Engineering and Life ScienceState Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070China

Low electrolyte/sulfur ratio(E/S)is an important factor in increasing the energy density of lithium-sulfur batteries(LSBs).Recently,the E/S has been widely lowered using catalytic hosts that can suppress“shuttle effect”during cycling by relying on a limited adsorption ***,the shelf-lives of these cathodes have not yet received ***,we show that the selfdischarge of sulfur cathodes based on frequently-used catalytic hosts is serious under low E/S because the“shuttle effect”during storage process caused by polysulfides(PSs)disproportionation cannot be suppressed using a limited adsorption *** further prove that the adsorption strength toward PSs,which is unfortunately weak in commonly-used catalytic hosts,is critical for effectively hindering the disproportionation of the ***,to verify this conclusion,we prepare a sulfur-doped titanium nitride(S-TiN)catalytic array *** the adsorption strength and catalytic activity of TiN can be improved by S doping simultaneously,the constructed S/S-TiN cathodes under a low E/S(6.5μL·mg−1)exhibit better shelf-life and cycle-stability than those of S/TiN *** work suggests that enhancing the adsorption strength of catalytic hosts,while maintaining their function to reduce E/S,is crucial for practical LSBs.

关键词： lithium-sulfur battery low electrolyte/sulfur ratio(E/S) self-discharge catalytic host adsorption strength

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The precipitation behaviours and strengthening mechanism of a Cu-0.4 wt% Sc alloy

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Journal of materials Science & technology 2022年第3期98卷 1-13页

作者： Zifan Hao Guoliang Xie Xinhua Liu Qing Tan Rui Wang State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing100083China Key Laboratory for Advanced Materials Processing of Ministry of Education Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing100083China

The precipitation behaviours during the aging process and the corresponding strengthening mechanism of a Cu-0.4 wt%Sc alloy were systematically investigated in this *** phase transformation sequence of the precipitation in the aging process of the Cu-0.4 wt%Sc alloy was found to be:supersaturated solid solution→Sc-enriched atomic clusters→metastable phase→Cu4Sc *** tetragonal structured lamellar Cu4Sc precipitates,with a habit plane parallel to the{111}plane of the Cu matrix and orientation relationships of(022)_(α)//(211)_(Cu4Sc)and[011]_(α)//[113]_(Cu4Sc),are found homogeneously distributed in the matrix.A combined process of cryogenic rolling(CR)and aging was designed for optimization of the mechanical and electrical *** integration of yield strength(696 MPa)and electrical conductivity(62.8%IACS)of this alloy was achieved by cryogenic rolling and subsequent aging process at 400℃for 4 *** significant precipitation strengthening effect of this alloy is attributed to the Cu4Sc precipitates with an extremely small size of only 1.5–3 *** leading strengthening mechanism is considered as the superposition of both coherent strengthening and Orowan strengthening effects.

关键词： Cu-Sc alloy Precipitation Aging process Strengthening mechanism

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Chiral effect on Aβ fibrillation from molecular-scale to nanoscale

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Nano Research 2022年第7期15卷 6721-6729页

作者： Guanbin Gao Guowei Zhu Liangchong Yu Zijun Zhang Ting Zhang Xinglin Liu Cheng Zhang Lin Zhou Taolei Sun State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China

β-Amyloid(Aβ)peptide fibrillation,one of the characteristic hallmarks of Alzheimer’s disease,is determined by many interfacial physical-chemical factors,e.g.,charge,hydrophobicity,*** extensive research,chiral effect in different-scales on the fibrillation process of Aβremains ***,molecular-scale,sub-nanoscale,and nanoscale chiral-structures were constructed to investigate their chiral effect on the fibrillation of Aβ_(40) *** structures from molecular-scale to nanoscale were obtained from the different periods of the chemosynthesis process of chiral ZnS quantum-dots(QDs),confirmed by real-time monitoring of circular dichroism *** molecular-scale,both L-penicillamine(L-P)and D-P ligands accelerated the fibrillation of Aβ_(40),and the speed-up effect of D-P was slightly stronger than *** sub-nanoscale,both two chiral Zncomplexes(L-Zn and D-Zn)induced the agglomeration of Aβ_(40) without chirality *** nanoscale,both L-ZnS and DZnS QDs inhibited the fibrillation of Aβ_(40),and the inhibition effect of L-ZnS was notably better than that of ***-situ kinetics experiments of Aβ_(40) co-incubated with two chiral QDs demonstrated that L-ZnS completely prevents the misfolding of Aβ_(40) from unfolded toβ-sheet,while D-ZnS cannot achieve *** site-replacement experiments and simulation results revealed the underlying molecular mechanisms of the different inhibition efficiency of chiral ZnS QDs on Aβ_(40) fibrillation,which mainly attribute to the stereoselectivity interaction between the chiral ligands of ZnS QDs and electro-positive amino acid residues(R5,K16,and K28)of Aβ_(40).This work offers a microscopic insight of chiral effect on Aβfibrillation exerted by structures in different-scales,and provides a guidance in precise regulation of protein fibrillation via manipulating chiral structures in different-scales.

关键词： chirality molecular-scale sub-nanoscale nanoscale Aβ_(40) fibrillation

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Intrinsically large effective mass and multi-valley band characteristics of n-type Bi_(2)eBi_(2)Te_(3)superlattice-like films

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Journal of Materiomics 2024年第3期10卷 716-724页

作者： Yujie Ouyang Min Zhang Fangyang Zhan Chunxia Li Xianda Li Fan Yan Sen Xie Qiwei Tong Haoran Ge Yong Liu Rui Wang Wei Liu Xinfeng Tang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China International School of Materials Science and Engineering Wuhan University of TechnologyWuhan430070China Institute for Structure and Function&Department of Physics Chongqing UniversityChongqing400044China School of Physics and Technology and the Key Laboratory of Artificial Micro/Nano Structures of Ministry of Education Wuhan UniversityWuhan430072China

Thermoelectric superlattices are expected to decouple the strong correlation between various thermo-electric parameters,and are an important strategy for excellent thermoelectric *** superlattices of(Bi_(2))m(Bi_(2)Te_(3))n homologous series are well-known for low lattice thermal conductivity and intriguing topological surface ***,the impacts of electronic structure on the thermo-electric performance were still not well-understood in(Bi_(2))m(Bi_(2)Te_(3))*** cope with this issue,Bi_(2)eBi_(2)Te_(3)superlattice-like films with adjustable Bi_(2)/(Bi_(2)+Bi_(2)Te_(3))molar ratio(R)were successfully fabricated by the molecular beam epitaxy ***-resolved photoemission spectroscopy measurements com-bined with theoretical calculations revealed the conduction band evolution from single-valley to multi-valley as R≥0.30,leading to intrinsically high carrier effective mass and improved thermoelectric power ***,the superlattice film(R=0.46)with the structure close to Bi_(4)Te_(3)possesses the topological surface state feature around the high symmetry *** a result of the high effective mass of 3.9 m0 and very high electron density of_(2).31×10^(21)cm^(-3),the film with R=0.46 acquired the highest power factor of 1.49 mW·m^(-1)·K^(-2)at 420 K,outperforming that of other(Bi_(2))m(Bi_(2)Te_(3))n *** work lays an essential foundation on understanding the electronic structure and further improving thermoelectric performances of(Bi_(2))m(Bi_(2)Te_(3))n homologous series.

关键词： Bi_(2)eBi_(2)Te_(3)superlattice Molecular beam epitaxy Band structure Thermoelectric performance

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Interfacial reaction behavior and mechanical properties of 5A06 Al alloy soldered with Sn-1Ti-xGa solders at a low temperature

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China Welding 2023年第2期32卷 23-31页

作者：宋立志肖勇奚邦富李佳琪张建 School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Active soldering of 5A06 Al alloy was performed at 300 ℃ by using Sn-1Ti and Sn-1Ti-0.3Ga active solders, respectively. Theeffects of soldering time on the microstructure and mechanical properties of the joints were investigated. The results showed that the Sn-1Tisolder broke the oxide film on the surface of the Al substrate and induced intergranular diffusion in the Al substrate. When Ga was added tothe solder, severe dissolution pits appeared in the Al substrate due to the action of Sn-1Ti-0.3Ga solder, and many Al particles were flakedfrom the matrix into the solder seam. Under thermal stress and the Ti adsorption effect, the oxide film cracked. With increasing solderingtime, the shear strength of 5A06 Al alloy joints soldered with Sn-1Ti and Sn-1Ti-0.3Ga active solders increased. When soldered for 90 min,the joint soldered with Sn-1Ti-0.3Ga solder had a higher shear strength of 22.12 MPa when compared to Sn-1Ti solder.

关键词： 5A06-Al alloy Sn-Ti-Ga solder low-temperature soldering interfacial reaction mechanical properties

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Single-Atom Lithiophilic Sites Confined within Ordered Porous Carbon for Ultrastable Lithium Metal Anodes

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Energy & Environmental materials 2023年第3期6卷 366-372页

作者： Wenzhong Huang Shanlin Liu Ruohan Yu Liang Zhou Zhenhui Liu Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Nanostructure Research Centre Wuhan University of TechnologyWuhan 430070China College of Material Science and Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu hydrogen ValleyFoshan 528200China

Attributing to the high specific capacity and low electrochemical reduction potential,lithium(Li)metal is regarded as the most promising anode for high-energy Li ***,the growth of lithium dendrites and huge volume change seriously limit the development of lithium metal *** overcome these challenges,an ordered mesoporous N-doped carbon with lithiophilic single atoms is proposed to induce uniform nucleation and deposition of Li *** from the synergistic effects of interconnected three-dimensional ordered mesoporous structures and abundant lithiophilic single-atom sites,regulated local current density and rapid mass transfer can be achieved,leading to the uniform Li deposition with inhibition of dendrites and buffered volume *** a result,the as-fabricated anode exhibits a high CE of 99.8%for 200 cycles.A stable voltage hysteresis of 14 mV at 5 mA cm^(−2)could be maintained for more than 1330 h in the symmetric ***,the full cell coupled with commercial LiFePO_(4)exhibits high reversible capacity of 108 mAh g^(−1)and average Coulombic efficiency of 99.8%from 5th to 350th cycles at 1 *** ordered mesoporous carbon host with abundant lithiophilic single-atom sites delivers new inspirations into rational design of high-performance Li metal anodes.

关键词： lithiophilic lithium metal battery ordered mesoporous carbon single atom

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High-performance thermal interface materials enabled by vertical alignment of lightweight and soft graphene foams

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Nano Research 2024年第11期17卷 9293-9299页

作者： Huaqiang Fu Renqiang Fang Chao Tian Wei Qian Shiya Cao Ziran Zhang Xiaoxi Xu Chuang Yao Zhe Wang Daping He School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China Hubei Engineering Research Center of RF-Microwave Technology and Application School of Science Wuhan University of Technology Wuhan 430070 China School of Materials and Microelectronics Wuhan University of Technology Wuhan 430070 China Shanghai Institute of Satellite Engineering Shanghai 201109 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

High-performance thermal interface materials (TIMs) are highly sought after for modern electronics. Two-dimensional (2D) materials as vertical aligned fillers can optimize the out-plane thermal conductivity (k ⊥), but their excessively high content or intrinsic rigidness deteriorate TIMs softness, leading to worsening for thermal contact resistance (R contact). In this study, 2D graphene materials are fabricated into lightweight and soft graphene foams (GFs) with high-orientation, acting as vertical filler frameworks to optimize the k ⊥ and R contact for vertical GF (VGF) TIMs. The VGF-TIM has a high k ⊥ of 47.9 W·m^(−1)·K^(−1) at a low graphene content of 15.5 wt.%. Due to the softness and low filler contents of GFs, the VGF-TIM exhibits a low compressive module (4.2 MPa), demonstrating excellent compressibility. The resulting TIM exhibit a low contact resistance of 24.4 K·mm2·W^(−1), demonstrating 185.1% higher cooling efficiency in practical heat dissipating scenario compared to commercial advanced TIMs. This work provides guidelines for the design of advanced TIMs and their applications in thermal management.

关键词： graphene foam thermal resistance thermal conductivity thermal interface materials

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In situ constructing lamella-heterostructured nanoporous CoFe/CoFe2O4 and CeO2-x as bifunctional electrocatalyst for high-current-density water splitting

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稀有金属（英文版） 2025年第2期44卷 1053-1066页

作者： Yue Deng Jin Wang Shao-Fei Zhang Zhi-Jia Zhang Jin-Feng Sun Tian-Tian Li Jian-Li Kang Hao Liu Shi Bai Hebei Key Laboratory of Flexible Functional Materials/Hebei Key Laboratory of Material Near-Net Forming Technology School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang 050018China School of Materials Science and Engineering Institute of Quantum Materials and DevicesState Key Laboratory of Separation Membrane and Membrane ProcessesTiangong UniversityTianjin 300387China School of Materials Science and Engineering Tianjin UniversityTianjin 300380China Materials Science and Technology Research Department Ji Hua LaboratoryFoshan 528000China Advanced Laser Processing Research Team RIKEN Center for Advanced PhotonicsSaitama 351-0198Japan

The stability and electrocatalytic efficiency of transition metal oxides for water splitting is determined by geometric and electronic structure,especially under high current ***,a newly designed lamella-heterostructured nanoporous CoFe/CoFe2O4 and CeO2-x,in situ grown on nickel foam(NF),holds great promise as a high-efficient bifunctional electrocatalyst(named R-CoFe/Ce/NF)for water *** characterization verifies surface reconstruction from CoFe alloy/oxide to highly active CoFeOOH during in situ electrochemical *** virtues of three-dimensional nanoporous architecture and abundant electroactive CoFeOOH/CeO2-x heterostructure interfaces,the R-CoFe/Ce/NF electrode achieves low overpotentials for oxygen evolution(η10=227 mV;η500=450 mV)and hydrogen evolution(η10=35 mV;η408=560 mV)reactions with high nor-malized electrochemical active surface areas,***,the alkaline full water splitting electrolyzer of R-CoFe/Ce/NF‖R-CoFe/Ce/NF achieves a current den-sity of 50 mA·cm-2 only at 1.75 V;the decline of activity is satisfactory after 100-h durability test at 300 mA·*** functional theory also demonstrates that the elec-tron can transfer from CeO2-x by virtue of O atom to CoFeOOH at CoFeOOH/CeO2-x heterointerfaces and enhancing the adsorption of reactant,thus optimizing electronic structure and Gibbs free energies for the improvement of the activity for water splitting.

关键词： Lamellar nanoporous structure Electronic structure regulation High current density Theoretical calculation Overall water splitting

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