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Alleviating the anisotropic microstructural change and boosting the lithium ions diffusion by grain orientation regulation for Ni-rich cathode materials

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Journal of Energy Chemistry 2024年第1期88卷 213-222,I0005页

作者： Xinyou He Shilin Su Bao zhang Zhiming Xiao zibo zhang Xing Ou Engineering Research Center of the Ministry of Education for Advanced Battery Materials School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083HunanChina Zhejiang Power New Energy Co.Ltd Zhuji 311899ZhejiangChina

Generally,layered Ni-rich cathode materials exhibit the morphology of polycrystalline secondary sphere composed of numerous primary *** the arrangement of primary particles plays a very important role in the properties of Ni-rich *** disordered particle arrangement is harmful to the cyclic performance and structural stability,yet the fundamental understanding of disordered structure on the structural degradation behavior is ***,we have designed three kinds of LiNi_(0.83)Co_(0.06)Mn_(0.11)O_(2) cathode materials with different primary particle orientations by regulating the precursor coprecipitation *** finite element simulation and in-situ characterization,the Li^(+)transport and structure evolution behaviors of different materials are ***,the smooth Li^(+)diffusion minimizes the reaction heterogeneity,homogenizes the phase transition within grains,and mitigates the anisotropic microstructural change,thereby modulating the crack evolution ***,the optimized structure evolution ensures radial tight junctions of the primary particles,enabling enhanced Li^(+)diffusion during dynamic ***-loop bidirectional enhancement mechanism becomes critical for grain orientation regulation to stabilize the cyclic *** precursor engineering with particle orientation regulation provides the useful guidance for the structural design and feature enhancement of Ni-rich layered cathodes.

关键词： Ni-rich cathode Grain orientation regulation Anisotropic microstructural change Precursor engineering Li~+-ions diffusion

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太白铁路沿线工业遗产时空分布特征与遗产廊道适宜性构建

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干旱区资源与环境 2024年第1期38卷 40-51页

作者：张子博曹如姬康峰太原理工大学建筑学院太原030024 中国-葡萄牙文化遗产保护科学“一带一路”联合实验室苏州215031

太白铁路是太原地区服务于工业运输的重要铁路,其对地区工业发展具有深远影响。借鉴遗产廊道理论,聚焦太白铁路沿线工业遗产资源,基于GIS空间分析平台,以太白铁路沿线31处工业遗产为研究对象,对其时空分布特征进行可视化分析,并引入适... 详细信息

太白铁路是太原地区服务于工业运输的重要铁路,其对地区工业发展具有深远影响。借鉴遗产廊道理论,聚焦太白铁路沿线工业遗产资源,基于GIS空间分析平台,以太白铁路沿线31处工业遗产为研究对象,对其时空分布特征进行可视化分析,并引入适宜性分析,依据太原市自然环境、交通条件、遗产特质、服务设施4方面的阻力值与权重值,模拟生成潜在廊道,并进一步探讨基于遗产廊道的工业遗产保护策略。研究发现:1)建设时间上,太白铁路沿线工业遗产集中建设于社会主义工业初创期(1950年-1963年),行业门类上以交通运输、仓储和邮政业为主。2)空间分布上,太白铁路沿线工业遗产具有聚集特征,主要聚集于杏花岭区西南部、万柏林区东北部、万柏林区西山地区;方向分布上,呈东北—西南方向分布格局,方向分布演变受各时期工业建设政策影响。3)遗产廊道构建适宜区呈“三核心一面域”的分布格局,“三核心”为杏花岭区西南核心区、万柏林区东北核心区及万柏林区西山核心区,“一面域”为汾河河谷平原地区。基于此,提出确定适宜廊道宽度、形成特色保护集群的保护策略,以期为太白铁路沿线工业遗产的整体性保护与更新工作提供参考。

关键词：太白铁路工业遗产遗产廊道

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装配间隙及垫片材料对碳纤维增强复合材料胶铆接头力学性能的影响

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机械工程材料 2024年第6期48卷 88-92页

作者：叶结和张子博徐野梁景恒郑自芹宋鸿宇中车青岛四方机车车辆股份有限公司青岛266111 中国兵器工业第五二研究所烟台分所有限责任公司烟台264003

制备了碳纤维增强复合材料(CFRP)胶铆接头,对其进行了单接缝拉伸剪切试验,研究了装配间隙(0,0.3,0.5,1.0 mm)和垫片材料(CFRP、无碱玻璃纤维布和EP6250环氧树脂胶黏剂)对接头拉伸-剪切力学性能和失效模式的影响。结果表明:不同装配间隙... 详细信息

制备了碳纤维增强复合材料(CFRP)胶铆接头,对其进行了单接缝拉伸剪切试验,研究了装配间隙(0,0.3,0.5,1.0 mm)和垫片材料(CFRP、无碱玻璃纤维布和EP6250环氧树脂胶黏剂)对接头拉伸-剪切力学性能和失效模式的影响。结果表明:不同装配间隙和垫片材料下,胶铆接头的载荷-位移曲线相似,均可分为弹性阶段、界面失效阶段、铆钉受力阶段和铆钉头部拉脱阶段;随着装配间隙增加,垫片材料为CFRP和纤维布的胶铆接头的极限载荷下降,垫片材料为胶黏剂的极限载荷基本不变,当装配间隙为1.0 mm时,垫片材料为胶黏剂的胶铆接头的极限载荷最大;当垫片材料为CFRP和纤维布时,不同装配间隙下胶铆接头的失效模式均为垫片侧胶面开裂,当垫片材料为胶黏剂时,胶铆接头失效模式均为CFRP板层间开裂。

关键词：碳纤维铆接装配间隙力学性能失效模式

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Compensated acceleration feedback based active disturbance rejection control for launch vehicles

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Chinese Journal of Aeronautics 2024年第4期37卷 464-478页

作者： Xiaoyan zhang Wenchao XUE zibo LIU Ran zhang Huifeng LI Key Laboratory of Systems and Control Institute of Systems ScienceAcademy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China School of Astronautics Beihang UniversityBeijing 100191China

In this paper, the attitude tracking and load relief control problems against wind disturbances and uncertain aerodynamics as well as the engine thrust of launch vehicles are ***, a framework of Compensated Acceleration Feedback based Active Disturbance Rejection Control(CAF-ADRC) is established to achieve both desired attitude tracking and load relief performances. In particular, the total disturbance that includes the effects caused by both aerocoefficient perturbations and disturbances is estimated by constructing an Extended State Observer(ESO) to achieve attitude tracking. Furthermore, combined with the normal acceleration due to the engine thrust, the accelerometer measurement is also compensated to enhance the load relief ***, the quantitative analysis of ESO and the entire closed-loop system are studied. It can be concluded that the desired attitude tracking and load relief performances can be achieved simultaneously under the proposed approach. Besides, tuning laws of the proposed approach are systematically given, which are divided into ESO, Proportional Derivative(PD) and Compensated Acceleration Feedback(CAF) modules. Moreover, the performances under CAF-ADRC approach can be better than those under CAF based PD(CAF-PD) approach by tuning load relief ***, the approach presented is applied to a typical control problem of launch vehicles with wind disturbances and parameter uncertainties.

关键词： Launch vehicles Uncertainty analysis Active disturbance rejection control(ADRC) Load relief control Extended state observer(ESO)

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Nano-channel-based physical and chemical synergic regulation for dendrite-free lithium plating

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Nano Research 2021年第10期14卷 3585-3597页

作者： Qiang Guo Wei Deng Shengjie Xia zibo zhang Fei Zhao Binjie Hu Sasa zhang Xufeng Zhou George Zheng Chen Zhaoping Liu Key Laboratory of Graphene Technologies and Applications of Zhejiang Province and Advanced Li-ion Battery Engineering Laboratory of Zhejiang Province Ningbo Institute of Materials Technology and EngineeringChinese Academy of Sciences(CAS)Ningbo 315201China Department of Chemical and Environmental Engineering Faculty of Science and EngineeringUniversity of NottinghamNingbo 315100China Department of Chemical and Environmental Engineering Faculty of EngineeringUniversity of NottinghamNottingham NG72RDUK

Uncontrollable dendrite growth resulting from the non-uniform lithium ion(Li^(+))flux and volume expansion in lithium metal(Li)negative electrode leads to rapid performance degradation and serious safety problems of lithium metal *** N-containing functional groups in carbon materials are reported to be effective to homogenize the Li^(+)flux,the effective interaction distance between lithium ions and N-containing groups should be relatively small(down to nanometer scale)according to the Debye length ***,it is necessary to carefully design the microstructure of N-containing carbon materials to make the most of their roles in regulating the Li^(+)*** this work,porous carbon nitride microspheres(PCNMs)with abundant nanopores have been synthesized and utilized to fabricate a uniform lithiophilic coating layer having hybrid pores of both the nano-and micrometer scales on the Cu/Li ***,the three-dimensional(3D)porous framework is favorable for absorbing volume changes and guiding Li ***,this coating layer can render a suitable interaction distance to effectively homogenize the Li^(+)flux and contribute to establishing a robust and stable solid electrolyte interphase(SEI)layer with Li-F,Li-N,and Li-O-rich contents based on the Debye length *** a physical-chemical synergic regulation strategy using PCNMs can lead to dendrite-free Li plating,resulting in a low nucleation overpotential and stable Li plating/stripping cycling performance in both the Li||Cu and the Li||Li symmetric ***,a full cell using the PCNM coated Li foil negative electrode and a LiFePO4 positive electrode has delivered a high capacity retention of~80%after more than 200 cycles at 1 C and achieved a remarkable rate *** pouch cell fabricated by pairing the PCNM coated Li foil negative electrode with a NCM 811 positive electrode has retained~73%of the initial capacity after 150 cycles at 0.2 C.

关键词： carbon nitride Debye length lithiophilic coating porous structure Li negative electrode

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摆动螺钉振幅的实验探究

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大学物理实验 2024年第5期37卷 7-12页

作者：宋思盈魏榕晟张紫勃周芸辽宁师范大学物理与电子技术学院辽宁大连116000

为了探究螺钉在斜面上的摆动情况,首先从能量角度、转动惯量角度和摆动条件角度进行理论分析,然后选取斜面倾角、螺钉倾角、斜面摩擦系数、螺钉的质量以及螺钉的长度等作为影响螺钉在斜面上摆动的主要因素进行探究,分别通过实验室实验、... 详细信息

为了探究螺钉在斜面上的摆动情况,首先从能量角度、转动惯量角度和摆动条件角度进行理论分析,然后选取斜面倾角、螺钉倾角、斜面摩擦系数、螺钉的质量以及螺钉的长度等作为影响螺钉在斜面上摆动的主要因素进行探究,分别通过实验室实验、Solid works仿真、Tracker轨迹跟踪、Matlab拟合等方法,研究各个因素对螺钉摆动情况的影响。研究结果表明:在其变量一定的条件下,斜面倾角与螺钉摆动幅度呈正相关趋势;螺钉倾角增加或者斜面摩擦系数增大或者螺钉质量增大或者螺钉长度增大时,螺钉摆动幅度均呈现减小趋势,实验结果验证了理论分析的正确性。

关键词：螺钉转动惯量极加速度仿真

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Slurry-like hybrid electrolyte with high lithium-ion transference number for dendrite-free lithium metal anode

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Journal of Energy Chemistry 2020年第9期29卷 375-382,I0011页

作者： Hewei Xu Ying He zibo zhang Junli Shi Pingying Liu Ziqi Tian Kan Luo Xiaozhe zhang Suzhe Liang Zhaoping Liu Advanced Li-ion Battery Engineering Laboratory and Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology and Engineering(NIMTE)Chinese Academy of SciencesNingbo 315201ZhejiangChina School of Materials Science and Engineering Jingdezhen Ceramic InstituteJingdezhen 333403JiangxiChina

Lithium metal anode is regarded as the ultimate choice for next-generation energy storage systems,due to the lowest negative electrochemical potential and super high theoretical specific ***,the growth of lithium dendrite during the cycling process is still one of the most critical bottlenecks for its *** this work,a slurry-like hybrid electrolyte is proposed towards the application for lithium metal anode,which is composed of a liquid electrolyte part and a nanometric silane-Al2O3 particle *** hybrid electrolyte shows high ionic conductivity(3.89×10-3 S cm-1 at 25℃)and lithium-ion transference number(0.88).Especially,the resistance of hybrid electrolyte decreases compared to that of liquid electrolyte,while the viscosity of hybrid electrolyte *** is demonstrated that the hybrid electrolyte can effectively suppress the growth of lithium *** cycling of Li/Li cells at a current density up to 1 mA cm-2 is *** hybrid electrolyte helps to uniform the lithium ion flux inside the battery and partly comes from the formation of a rigid and highly conductive hybrid interfacial layer on the surface of lithium *** work not only provides a fresh way to stabilize lithium metal anode but also sheds light on further research for electrolyte optimization and design of lithium metal battery system.

关键词： Hybrid electrolyte Slurry Organic-inorganic Lithium-ion transference number Lithium metal batteries

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基于语义本体的太原市工业遗产社区建筑风貌特征研究--以太重苏联专家楼、矿机厂苏式住宅为例

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华中建筑 2024年第4期42卷 71-76页

作者：张子博李旭艳曹如姬康峰太原理工大学建筑学院

基于语义本体法,选取太重苏联专家楼、矿机厂苏式住宅为研究对象,针对影响其风貌特征的建筑平面、屋顶、墙体、门窗及阳台、细部装饰五部分要素进行语义本体分析,并结合比较分析,探知太原市工业遗产社区风貌演变的过程与原因。结果表明... 详细信息

基于语义本体法,选取太重苏联专家楼、矿机厂苏式住宅为研究对象,针对影响其风貌特征的建筑平面、屋顶、墙体、门窗及阳台、细部装饰五部分要素进行语义本体分析,并结合比较分析,探知太原市工业遗产社区风貌演变的过程与原因。结果表明:太原市工业遗产社区风貌特征体现为简洁高效的街坊组织方式、标准化的立面设计、元素多样的细部装饰,其风貌演变受到资源配置方式与政府政策的影响,表现为社区规划形式更为丰富、空间组织更加便捷、建筑风格更加多元。以期为今后太原市工业遗产社区的改造与更新工作提供理论依据与参考。

关键词：工业遗产社区建筑风貌特征语义本体

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Detection of Turbulence Anomalies Using a Symbolic Classifier Algorithm in Airborne Quick Access Record(QAR)Data Analysis

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Advances in Atmospheric Sciences 2024年第7期41卷 1438-1449页

作者： zibo ZHUANG Kunyun LIN Hongying zhang Pak-Wai CHAN Flight Academy Civil Aviation University of ChinaTianjin 300300China School of Electronic Information and Automation Civil Aviation University of ChinaTianjin 300300China Aviation Weather Services Hong Kong ObservatoryHong KongChina

As the risks associated with air turbulence are intensified by climate change and the growth of the aviation industry,it has become imperative to monitor and mitigate these threats to ensure civil aviation *** eddy dissipation rate(EDR)has been established as the standard metric for quantifying turbulence in civil *** study aims to explore a universally applicable symbolic classification approach based on genetic programming to detect turbulence anomalies using quick access recorder(QAR)*** detection of atmospheric turbulence is approached as an anomaly detection *** evaluations demonstrate that this approach performs on par with direct EDR calculation methods in identifying turbulence ***,comparisons with alternative machine learning techniques indicate that the proposed technique is the optimal methodology currently *** summary,the use of symbolic classification via genetic programming enables accurate turbulence detection from QAR data,comparable to that with established EDR approaches and surpassing that achieved with machine learning *** finding highlights the potential of integrating symbolic classifiers into turbulence monitoring systems to enhance civil aviation safety amidst rising environmental and operational hazards.

关键词： turbulence detection symbolic classifier quick access recorder data

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Modeling analysis and optimization design of the thermostatical control system of laser instrument of the semiconductor

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微计算机信息 2008年第1期 271-273页

作者： (Measurement technique and instrument, Shandong University of Technology, zibo 255049, China) zhang Xinyi zhang Jianjun

Influence produced by the heat effect at work of the laser instrument crystal of the semiconductor, the text designs a kind of temperature control system to the crystal of the laser instrument, using the thought and method of the classical control theory to analyze this temperature control system, and establishes mathematics model. According to mathematics model the text demonstrated the system at S field and time- area, and proposed optimizing basis to the total mark of proportion and differential parameter to con- troller PID, thus proposed a kind of temperature control scheme. And the thermostatically system is simulated by MATLAB.

关键词： Laser instrument semiconductor refrigeration device PID control circuit

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