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Carbon‐based materials for all‐solid‐state zinc–air batteries

Carbon Energy 2021年第1期3卷 50-65页

作者： Dan Yang Dong Chen Yu Jiang Edison Huixiang Ang yuezhan feng Xianhong Rui Yan Yu School of Materials and Energy Guangdong University of TechnologyGuangzhouChina Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Materials for Energy ConversionChinese Academy of Sciences(CAS)University of Science and Technology of ChinaHefeiAnhuiChina Natural Sciences and Science Education National Institute of EducationNanyang Technological UniversitySingaporeSingapore Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhouChina Dalian National Laboratory for Clean Energy(DNL) Chinese Academy of SciencesDalianLiaoningChina State Key Laboratory of Fire Science University of Science and Technology of ChinaHefeiAnhuiChina

Solid‐state Zn–air batteries(ZABs)hold great potential for application in wearable and flexible ***,further commercialization of current ZABs is still limited by the poor stability and low energy *** is,thus,crucial to develop efficient catalysts as well as optimize the solid electrolyte system to unveil potential of the ZAB *** to the low cost and versatility in tailoring the structures and properties,carbon materials have been extensively used as the conductive substrates,catalytic air electrodes,and important components in the electrolytes for the solid‐state *** this context,we discuss the challenges facing current solid‐state ZABs and summarize the strategies developed to modify properties of carbon‐based electrodes and *** highlight the metal−organic framework/covalent organic framework‐based electrodes,heteroatom‐doped carbon,and the composites formed of carbon with metal oxides/sulfides/*** also briefly discuss the progress of graphene oxide‐based solid electrolyte.

关键词： carbon material heteroatom‐doped carbon solid electrolyte solid‐state Zn–air battery

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Advances in metal phosphides for sodium-ion batteries

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SusMat 2021年第3期1卷 359-392页

作者： Qifei Li Dan Yang Haoliang Chen Xiang Lv Yu Jiang yuezhan feng Xianhong Rui Yan Yu School of Materials and Energy Guangdong University of TechnologyGuangzhouChina Hefei National Laboratory for Physical Sciences at the Microscale Department of Materials Science and EngineeringCAS Key Laboratory of Materials for Energy ConversionUniversity of Science and Technology of ChinaHefeiAnhuiChina Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhouChina Dalian National Laboratory for Clean Energy(DNL) Chinese Academy of Sciences(CAS)DalianLiaoningChina

Sodium-ion batteries(SIBs)have been extensively studied as the potential alter-native to lithium-ion batteries(LIBs)due to the abundant natural reserves and low price of sodium ***,Na+ions possess a larger radius than Li+,resulting in slow diffusion dynamics in electrode materials,and thus seeking appropriate anode materials to meet high performance standards has become a trend in the field of *** this context,owing to the advantages of high theoretical capacity and proper redox potential,metal phosphides(MPs)are considered to be the promising materials to make up for the gap of SIBs anode *** this review,the recent development of MPs anode materials for SIBs is reviewed and analyzed comprehensively and deeply,including the synthesis method,advanced modification strategy,electrochemical performance,and Na storage *** addition,to promote the wide application of the emerg-ing MPs anodes for SIBs,several research emphases in the future are pointed out to overcome challenges toward the commercial application.

关键词： anode materials high capacity metal phosphides Na storage mechanism sodium ion batteries

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Sodium–gallium alloy layer for fast and reversible sodium deposition

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SusMat 2022年第6期2卷 699-707页

作者： Xiang Lv Fang Tang Yu Yao Chen Xu Dong Chen Lin Liu yuezhan feng Xianhong Rui Yan Yu Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter School of Materials and EnergyGuangdong University of TechnologyGuangzhouChina Hefei National Research Center for Physical Sciences at the Microscale Department of Materials Science and EngineeringNational Synchrotron Radiation LaboratoryCAS Key Laboratory of Materials for Energy ConversionUniversity of Science and Technology of ChinaHefeiAnhuiChina Academy for Advanced Interdisciplinary Studies Southern University of Science and TechnologyShenzhenChina Key Laboratory of Materials Processing and Mold(Ministry of Education) Zhengzhou UniversityZhengzhouChina

Sodium metal has been regarded as the potential alternative for metal batter-ies owing to its advantages of high theoretical capacity and abundant ***,propagation of Na dendrites can boost the interfacial instability of Na metal,retarding its practical ***,the Na–Ga alloy layer is designed and fabricated by in situ rolling of metal Ga on the surface of Na *** alloy layer possesses good sodiophilicity,which can effectively pro-tect Na metal and favor the uniform Na+deposition,obtaining the inhibition of Na dendrites ***,the symmetric cells assembled by the alloy-layer protected Na metal electrodes(NGAL-Na||NGAL-Na)have a long lifetime(468 h)even under a high plating/stripping capacity of 6 mAh cm^(−2) in carbon-ate *** full battery of NGAL-Na||Na 3 V 2(PO 4)3 is able to sustain an excellent rate capability of 100 mAh g−1 after 500 cycles at 10 C under ambi-ent *** work provides a new route to prevent metal anodes from severe dendrite growth,and paves the way toward safer and stable-performing metal-based rechargeable batteries.

关键词： dendrite-free morphology Na-Ga alloy sodium metal anode

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Oxyvanite V3O5:A new intercalation-type anode for lithium-ion battery

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InfoMat 2019年第2期1卷 251-259页

作者： Dong Chen Huiteng Tan Xianhong Rui Qi Zhang yuezhan feng Hongbo Geng Chengchao Li Shaoming Huang Yan Yu Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices Collaborative Innovation Center of Advanced Energy MaterialsSchool of Materials and EnergyGuangdong University of TechnologyGuangzhouGuangdongChina Hefei National Laboratory for Physical Sciences at the Microscale Department of Materials Science and EngineeringKey Laboratory of Materials for Energy ConversionChinese Academy of Sciences(CAS)University of Science and Technology of ChinaHefeiAnhuiChina Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhouChina Department of Materials Science and Engineering University of Science and Technology of China Dalian National Laboratory for Clean Energy(DNL)CASDalianLiaoningChina

In the present study,V3O5 microcrystals that synthesized via vacuum calcination are employed as anodes for lithium-ion batteries(LIBs)for the first *** the widely observed sluggish reaction kinetics and poor cycling stability in most microsized transition metal oxides,the V3O5 microcrystals exhibit excellent rate capability(specific capacities of 144 and 125 mAh g^−1 are achieved at extremely high current densities of 20 and 50 A g^−1,respectively)and long-term cycling performance(specific capacity of 117 mAh g^−1 is sustained over 2000 cycles at 50 A g^−1).It is ascribed to the three-dimensional open-framework structure of the V3O5 microcrystals as a major factor in dictating the fast reaction kinetics(lithium diffusion coefficient:~10−9 cm^2 s^−1).In addition,significant insight into the reaction mechanism of the V3O5 microcrystals in concomitant its phase evolution are obtained from ex-situ XRD study,revealing that the V3O5 microcrystals undergo intercalation reaction with insignificant structural change in response to lithiation/delithiation.

关键词： high-rate capability intercalation chemistry lithium-ion battery oxyvanite V3O5 anode

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Controlling the morphology, size and phase of Nb_2O_5 crystals for high electrochemical performance

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Chinese Chemical Letters 2018年第12期29卷 1785-1790页

作者： Jiaqin Liao Rou Tan Zhixiang Kuang Chunyu Cui Zengxi Wei Xiaolan Deng Zhanheng Yan yuezhan feng Fang Li Caiyun Wang Jianmin Ma School of Physics and Electronics Hunan University Key Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of EducationZhengzhou University ARC Centre of Excellence for Electromaterials Science Intelligent Polymer Research InstituteAIIM FacilityUniversity of Wollongong Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University

The morphology, size and phase of the material play a crucial role in its electrochemical ***, the nano-sized niobium pentoxide(Nb2O5) with different morphologies and phase structures are synthesized through a very simple thermal treatment method, including the pseudo hexagonal Nb2O5nanosheets and pseudo hexagonal Nb2O5nanoparticles, orthorhombic Nb2O5nanoparticles. The synthesized pseudohexagonal Nb2O5 nanosheets and orthorhombic Nb2O5nanoparticles exhibit better cycling and rate performance than the pseudohexagonal Nb2 O5 nanoparticles due to the different morphologies and phase structures. The T-Nb2O5-700 nanoparticles show the higher capacity(175 mAh/g) than that of TT-Nb2O5-500 nanosheets(127 mAh/g) and TT-Nb2O5-600 nanoparticles(39 mAh/g) at a current density of 50 mA/g and good rate performance with a capacity of 140 mAh/g at 1.0 A/g. The excellent rate capability and cycling stability of orthorhombic T-Nb2O5may be ascribed to the dominant contribution of pseudocapacitive effect. This material has the great potential as a practical high-rate anode material for lithium-ion batteries.

关键词： Nb_2O_5 Lithium-ion battery Pseudocapacitance Anode Crystal phase

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Electrolytes enriched by potassium perfluorinated sulfonates for lithium metal batteries

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Science Bulletin 2021年第7期66卷 685-693,M0004页

作者： Shihan Qi Huaping Wang Jian He Jiandong Liu Chunyu Cui Mingguang Wu Fang Li yuezhan feng Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha 410082China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou 450002China

Lithium(Li) metal is widely considered as a promising anode for next-generation lithium metal batteries(LMBs) due to its high theoretical capacity and lowest electrochemical potential. However, the uncontrollable formation of Li dendrites has prevented its practical application. Herein, we propose a kind of multifunctional electrolyte additives(potassium perfluorinated sulfonates) from the multi-factor principle for electrolyte additive molecular design(EDMD) view to suppress the Li dendrite growth. The effects of these additives are revealed through experimental results, molecular dynamics simulations and firstprinciples calculations. Firstly, K^(+)can form an electrostatic shield on the surface of Li anode to prevent the growth of Li dendrites. Secondly, potassium perfluorinated sulfonates can improve the activity of electrolytes as co-conductive salts, and lower the electro-potential of Li nucleation. Thirdly, perfluorinated sulfonate anions not only can change the Li^(+)solvation sheath structure to decrease the desolvation energy barrier and increase the ion migration rate, but also can be partly decomposed to form the superior solid electrolyte interphase(SEI). Benefited from the synergistic effects, an outstanding cycle life over250 h at 1 m A cm^(-2) is achieved in symmetric Li||Li cells. In particular, potassium perfluorinated sulfonate additives(e.g., potassium perfluorohexyl sulfonate, denoted as K+PFHS) can also contribute to the formation of high-quality cathode electrolyte interphase(CEI). As a result, Li||LiNi_(0.6)Mn_(0.2)Co_(0.2)O_(2) full cells exhibit significantly enhanced cycling stability. This multi-factor principle for EDMD offers a unique insight on understanding the electrochemical behavior of ion-type electrolyte additives on both the Li metal anode and high-voltage cathode.

关键词： Electrolyte Additives Lithium metal batteries Lithium anode protection Potassium perfluorinated sulfonates

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碳纤维增强Vitrimer环氧树脂复合材料层间修复与热塑成型行为

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材料工程 2023年第6期51卷 159-167页

作者：方梅陆波黄明冯跃战刘春太申长雨郑州大学材料成型与模具技术教育部重点实验室橡塑模具国家工程研究中心郑州450002

研究了新型碳纤维增强Vitrimer环氧树脂复合材料(V-CFRP)的层间修复性能和热塑成型工艺,并分析了热压修复与热塑成型机理。结果表明:新型Vitrimer环氧树脂的玻璃化转变温度(T_(g))为92.8℃,其高于T_(g)温度下表现出显著的应力松弛行为,... 详细信息

研究了新型碳纤维增强Vitrimer环氧树脂复合材料(V-CFRP)的层间修复性能和热塑成型工艺,并分析了热压修复与热塑成型机理。结果表明:新型Vitrimer环氧树脂的玻璃化转变温度(T_(g))为92.8℃,其高于T_(g)温度下表现出显著的应力松弛行为,应力松弛时间与温度呈现线性关系;采用三点弯曲实验研究了V-CFRP复合材料的热压修复行为与热塑成型能力,热压修复研究发现在180~220℃,5 MPa条件下热压1.5~2.0 h可实现复合材料层间破坏近乎100%的修复;热压成型研究表明,V-CFRP复合材料在180~220℃预加热5~30 min,其弯曲模量和弯曲强度下降超过80%,弯曲模量的大幅下降意味着V-CFRP适于热压再成型;并采用模塑热压方法,在200℃,5 MPa和2 h热压条件下,实现了V-CFRP板材热塑成型制备具有三维特征的结构件,证明了V-CFRP复合材料的热压模塑成型能力。

关键词： Vitrimer 碳纤维增强复合材料层间修复热塑成型酯键交换反应

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短多壁碳纳米管/聚碳酸酯复合材料的制备与性能

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现代塑料加工应用 2015年第5期27卷 8-11页

作者：赵元旭李安冯跃战王波刘春太郑州大学材料科学与工程学院橡塑模具国家工程研究中心河南郑州450001

采用模压法制备了短多壁碳纳米管/聚碳酸酯(sMWNT/PC)和羧基化短多壁碳纳米管/聚碳酸酯(sOMWNT/PC)复合材料,并对2种复合材料的热稳定性和拉伸性能进行了研究。结果表明:与纯PC相比,sMWNT/PC复合材料的热稳定性和拉伸性能均有明显下降,... 详细信息

采用模压法制备了短多壁碳纳米管/聚碳酸酯(sMWNT/PC)和羧基化短多壁碳纳米管/聚碳酸酯(sOMWNT/PC)复合材料,并对2种复合材料的热稳定性和拉伸性能进行了研究。结果表明:与纯PC相比,sMWNT/PC复合材料的热稳定性和拉伸性能均有明显下降,而sOMWNT/PC复合材料则能够在保持PC原有热稳定性的同时显著提高其力学性能,其屈服强度和拉伸强度最大提高幅度分别为12.9%和12.8%。动态力学性能结果表明:sOMWNT/PC复合材料玻璃态时的储能模量随着sOMWNT含量的增加而增大,玻璃化转变温度则表现出相反的趋势。

关键词：短多壁碳纳米管聚碳酸酯复合材料热稳定性力学性能

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Understanding the local structure and thermophysical behavior of Mg-La liquid alloys via machine learning potential

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 439-449页

作者： Jia Zhao Taixi feng Guimin Lu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and TechnologyShanghai 200237China Joint International Laboratory for Potassium and Lithium Strategic Resources East China University of Science and TechnologyShanghai 200237China

The local structure and thermophysical behavior of Mg-La liquid alloys were in-depth understood using deep potential molecular dynamic(DPMD) simulation driven via machine learning to promote the development of Mg-La alloys. The robustness of the trained deep potential(DP) model was thoroughly evaluated through several aspects, including root-mean-square errors(RMSEs), energy and force data, and structural information comparison results;the results indicate the carefully trained DP model is reliable. The component and temperature dependence of the local structure in the Mg-La liquid alloy was analyzed. The effect of Mg content in the system on the first coordination shell of the atomic pairs is the same as that of temperature. The pre-peak demonstrated in the structure factor indicates the presence of a medium-range ordered structure in the Mg-La liquid alloy, which is particularly pronounced in the 80at% Mg system and disappears at elevated temperatures. The density, self-diffusion coefficient, and shear viscosity for the Mg-La liquid alloy were predicted via DPMD simulation, the evolution patterns with Mg content and temperature were subsequently discussed, and a database was established accordingly. Finally, the mixing enthalpy and elemental activity of the Mg-La liquid alloy at 1200 K were reliably evaluated,which provides new guidance for related studies.

关键词： magnesium-lanthanum liquid alloys local structure macroscopic properties thermodynamic behavior deep potential mo-lecular dynamic simulation

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Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang feng Gao Yu-Gui Peng Peng Wu Zong-Lin Li Xue-feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

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