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Energy & Environmental Materials 2021年第4期4卷 603-610页

作者： Wanwei Jiang Haiting Shi Xijun Xu jiadong shen Zhiwei Xu Renzong Hu State Key Laboratory of Separation Membranes and Membrane Processes School of Textile Science and EngineeringTiangong UniversityTianjin 300387China School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510640China

Aqueous Zn-ion battery has emerged as one of the most prospective energy storage devices due to its low cost,high safety,and ***,Zn-ion batteries are bottlenecked by significant capacity fading during long-term cycling and poor performance at high current ***,we report an available cooperation of multivariate manganese oxides@carbon hybrids(MnO_(2)/MnO@C and MnO_(2)/Mn_(3)O_(4)@C)via a plasma-assisted design as an attractive Zn-ion *** them,the MnO_(2)/MnO@C cathode exhibits a reversible specific capacity of 165 m Ah g^(-1)over 200 cycles at a high rate of 0.5 A g^(-1),and possesses great rate performance with high capacities of 110 and 100 m Ah g^(-1)at a high rate of 0.8 and 1 A g^(-1),*** good cathode performance significantly results from the facile charge transfer and ions(Zn^(2+)and H^(+))insertion in the manganese oxides/carbon hybrids featuring phase stability behavior in the available cooperation of multivalence and carbon conductive *** work will promote the Zn-manganese dioxide system for the design of low-cost and high-performance aqueous rechargeable Zn-ion batteries.

关键词： aqueous rechargeable Zn batteries conductive substrates multivariate manganese oxides phase stability plasma

Recent progress of flexible sulfur cathode based on carbon host for lithium-sulfur batteries

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Journal of Materials Science & Technology 2020年第20期52卷 56-72页

作者： Zhuosen Wang Xijun Xu Shaomin Ji Zhengbo Liu Dechao Zhang jiadong shen Jun Liu Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510641China School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou510006China

With the emergence and development of wearable devices,the novel ene rgy storage systems with flexible feature and high energy density are urgently *** we all know,for next generation high energystorage systems,lithium-sulfur(Li-S) batteries with a high theoretical capacity are regarded as one of the most promising *** addition,the flexible Li-S batteries have received more and more *** determined factor in the flexible Li-S batteries is how to design the foldable electrodes including both anode and *** for the flexible sulfur cathode,it could be obtained by integrating the electroactive sulfur with a flexible substrate,*** recent years,the flexible cathode of Li-S batteries have made considerable progress,however there are also many huge challenges needing to overcome,such as low content of sulfur,fast decrease of capacity and short cycle *** this paper,the current develop status of flexible cathodes of Li-S batteries have been summarized,and the future trend also be pointed out.

关键词： Li-S batteries Sulfur cathode Recent progress High energy density Flexible devices

Facile Synthesis of Yolk-Shell Bi@C Nanospheres with Superior Li-ion Storage Performances

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Acta Metallurgica Sinica(English Letters) 2021年第3期34卷 347-353页

作者： Xijun Xu Dechao Zhang Zhuosen Wang Shiyong Zuo jiadong shen Zhengbo Liu Jun Liu Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510641China School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006China

Recently,exploring appropriate anode materials for current commercial lithium-ion batteries(LIBs) with suitable operating potential and long cycle life has attracted extensive ***,a novel anode of Bi nanoparticles fully encapsulated in carbon nanosphere framework with uniform yolk-shell nanostructure was prepared via a facile hydrothermal *** to the special structure design,this anode of yolk-shell Bi@C can effectively moderate the volume exchange,avoid the aggregation of active Bi nanoparticle and provide superior kinetic during discharge/charge *** in the voltage of 0.01-2.0 V,yolk-shell Bi@C anode exhibits outstanding Li+storage performance(a reversible capacity over 200 mAh g-1after 400 cycles at 1.25 A g-1) and excellent rate capability(a capacity of 404,347,304,275,240,199 and 163 mAh g-1 at0.05,0.1,0.25,0.5,1.0,1.8 and 3.2 A g-1,respectively).This work indicates that rational design of nanostructured anode materials is highly applicable for the next-generation LIBs.

关键词： Yolk-shell structure Li-ion batteries Alloying type Bismuth Rate capability

Interface engineering for composite cathodes in sulfide-based all-solid-state lithium batteries

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Journal of Energy Chemistry 2021年第9期30卷 32-60页

作者： Yu Li Dechao Zhang Xijun Xu Zhuosen Wang Zhengbo Liu jiadong shen Jun Liu Min Zhu Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510641GuangdongChina

All-solid-state lithium battery(ASLB)based on sulfide-based electrolyte is considered to be a candidate for the next-generation high-energy storage *** the high ionic conductivity of sulfide solid electrolyte,the poor interfacial stability(mechanically and chemically)between active materials and sulfide solid electrolytes in composite cathodes leads to inferior electrochemical performances,which impedes the practical application of sulfide *** the past years,various of strategies have been carried out to achieve an interface with low impedance in the composite ***,a review of recent progress of composite cathodes for all-solid-state sulfide-based lithium batteries is summarized,including the interfacial issues,design strategies,fabrication methods,and characterization ***,the main challenges and perspectives of composite cathodes for high-performance all-solidstate batteries are highlighted for future development.

关键词： All-solid-state batteries Composite cathodes Sulfide solid electrolytes Interface

General construction of lithiophilic 3D skeleton for dendrite-free lithium metal anode via a versatile MOF-derived route

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Science China Materials 2022年第2期65卷 337-348页

作者： Liyan Zeng Ting Zhou Xijun Xu Fangkun Li jiadong shen Dechao Zhang Jun Liu Min Zhu School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials South China University of TechnologyGuangzhou 510641China

The pursuit of high-mileage models results in the recurrence of lithium metal batteries(LMBs)to researchers’***,the lithium(Li)metal anode for LMBs undergoes the uncontrollable formation of Li dendrites and infinite volume change during cycling,impeding its practical *** overcome these challenges,we developed a metal-organic framework(MOF)-derived pathway to construct lithiophilic three-dimensional(3D)skeleton using different substrates(e.g.,carbon cloth(CC)and Cu mesh)for dendrite-free lithium metal *** a typical example,the MOF-derived ZnO/nitrogen-doped carbon(NC)nanosheet-modified 3D CC was well-constructed as a lithiophilic hierarchical host(CC@ZnO/NC@Li)for molten Li *** from the lithiophilic N-functional groups and LiZn alloy,the synthesized CC@ZnO/NC@Li composite anode promoted the uniform distribution of Li,resulting in a dendrite-free ***,the 3D conductive carbon skeleton enhanced the reaction kinetics and buffered the volume change of the *** CC@ZnO/NC@Li composite anode presented a prolonged lifespan of over 1000 cycles at 5 mA cm^(−2) with a low overpotential of 19 *** with a LiFePO_(4) cathode,the CC@ZnO/NC@Li composite anode also exhibited superior electrochemical properties in the full-cell *** versatile strategy may open up the channel of designing multi-functional lithiophilic 3D hosts for the Li metal anode.

关键词： dendrite-free lithium anode 3D lithiophilic host MOF-derived ZnO/NC nanosheets lithium metal batteries

RTK-BDS定位的推土机推平作业实时辅助施工研究

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陆军工程大学学报 2024年第3期3卷 86-92页

作者：陈杰罗吉庆沈家栋乔元虎苗旋宋胜利陆军工程大学野战工程学院江苏南京210007 陆军工程大学江苏南京210007

针对当前推土机在作业过程中操作复杂、施工效果评估困难等问题,基于北斗实时动态差分定位(real time kinematic,RTK)技术和运动学方程,求得推土机实时位置;提出了以推土高程和设计平面的高程差作为平整施工质量评价的方法,可直观评价... 详细信息

针对当前推土机在作业过程中操作复杂、施工效果评估困难等问题,基于北斗实时动态差分定位(real time kinematic,RTK)技术和运动学方程,求得推土机实时位置;提出了以推土高程和设计平面的高程差作为平整施工质量评价的方法,可直观评价施工效果,研制了驾驶引导装置,可实时显示推土机状态与施工进度。工程应用表明,该装置达到了厘米级的定位精度,定位的绝对误差小于5 cm,满足推土机精准施工的需求;车载显示终端使用RS232通信可精确获取推土机坐标、速度、航向等自身状态参数和施工数据。在实际施工场景中,该系统可有效减少驾驶员返工次数、降低劳动强度,提高了施工效率,达到了辅助施工的目的。

关键词：推土机北斗系统实时动态差分辅助施工

Flexible and Self-Supported Sulfur Cathode for High-Energy-Density Lithium-Sulfur Batteries

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Flexible and Self-Supported Sulfur Cathode for High-Energy-D...

中国化学会第二十次全国电化学大会

作者： Zhuosen Wang jiadong shen Jun Liu School of Materials Science and Engineering South China University of Technology

Lithium–sulfur（Li-S） batteries have attracted much attention in the field of electrochemical energy storage due to their high energy density and low cost. However, the ‘shuttle effect’ of sulfur cathode, resulting in the poor cyclic performance of batteries, is a big barrier for the development of Li-S batteries. It is critical to design and synthesize novel materials as the sulfur cathode host for Li-S batteries which has high electrical conductivity, large sulfur loading and strong absorb interactions of polysulfides to prevent the ‘shuttle effect’.[1-3] Self-supported nanoarrays with hierarchical voids and rich reaction sites are promising for advanced electrodes of high-performance Li-S batteries. Herein, we have designed a novel sulfur cathode of integrating sulfur, flexible carbon cloth, and metal-organic framework（MOF）-derived N-doped carbon nanoarrays with embedded CoP. These unique flexible nanoarrays with embedded polar CoP nanoparticles not only offer the enough voids for volume expansion to maintain the structural stability during the electrochemical process, but also promote the physical encapsulation and chemical entrapment for all sulfur species.[4] Such designed CC@CoP/C cathodes possess high sulfur loadings（as high as 4.17 mg/cm-2） and exhibit large specific capacities at different C-rates. Specially, an outstanding long-term cycling performance could be reached. For example, an ultra-low decay of 0.016% per cycle during the whole 600 cycles at a high current density of 2 C is displayed. The current work provides a promising design direction for high-energy-density Li-S batteries.

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支撑裂缝导流能力的数值模拟

石油学报 2018年第12期39卷 1410-1420页

作者：朱海燕沈佳栋周汉国西南石油大学油气藏地质及开发工程国家重点实验室四川成都 610500 中国科学院力学研究所非线性力学国家重点实验室北京 100190 中国石油化工股份有限公司胜利油田分公司油气勘探管理中心山东东营 257000

裂缝导流能力一般是利用室内实验进行评价,周期长、成本高且仅能测试较短时间的裂缝导流能力。笔者通过离散元颗粒流程序生成了真实尺寸的支撑剂颗粒,再现了微小支撑剂颗粒之间、支撑剂与裂缝面之间的高度非线性接触的物理本质。通过CFD... 详细信息

裂缝导流能力一般是利用室内实验进行评价,周期长、成本高且仅能测试较短时间的裂缝导流能力。笔者通过离散元颗粒流程序生成了真实尺寸的支撑剂颗粒,再现了微小支撑剂颗粒之间、支撑剂与裂缝面之间的高度非线性接触的物理本质。通过CFD,计算了支撑剂簇空隙流体与支撑剂的流固耦合作用,建立了支撑裂缝的裂缝导流能力的数值模拟模型,开展裂缝闭合应力、储层弹性模量、铺砂浓度和支撑剂组合形式等对裂缝导流能力的影响规律研究,揭示了支撑裂缝导流能力的变化机理。数值模拟结果显示,裂缝导流能力与铺砂浓度和支撑剂颗粒成正比,与闭合应力以及支撑剂嵌入深度成反比。

关键词：离散元方法计算流体力学裂缝导流能力支撑裂缝支撑剂

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低低温电除尘器绝缘装置设计与分析

中国电力 2018年第3期51卷 150-154页

作者：沈家栋赵海宝同济大学浙江学院浙江嘉兴314000 浙江菲达环保科技股份有限公司浙江诸暨311800

低低温电除尘技术烟气温度低,高压绝缘瓷套须采取防结露积灰措施以保证低低温电除尘器的高运行稳定性。设计了3种适合低低温电除尘技术的高压绝缘装置,包括绝缘子小室结构、宽大梁内结构、大保温箱结构,分析了各自的结构优势和特点,并... 详细信息

低低温电除尘技术烟气温度低,高压绝缘瓷套须采取防结露积灰措施以保证低低温电除尘器的高运行稳定性。设计了3种适合低低温电除尘技术的高压绝缘装置,包括绝缘子小室结构、宽大梁内结构、大保温箱结构,分析了各自的结构优势和特点,并将该技术在温州电厂和淮阴电厂低低温电除尘器中的应用作了重点阐述,该装置的应用成功解决了低低温电除尘项目的高压绝缘易失效的问题。

关键词：低低温电除尘技术绝缘瓷套燃煤电厂绝缘子室

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基于ARM的激光式大坝水平位移监测系统

光学技术 2017年第2期43卷 134-137页

作者：石盼沈家栋何东伟同济大学浙江学院机械与汽车系浙江嘉兴314001 同济大学汽车学院上海200092

针对大坝安全监测的技术要求,设计并研制了一套基于铅垂线原理的大坝水平位移测量系统。该系统以光栅尺、激光发射和接收器、减速电机为主要运动部件,以性能强大的ARM内核芯片为主控制器,采用大屏幕LCD为人机交互界面,实现对大坝水平横... 详细信息

针对大坝安全监测的技术要求,设计并研制了一套基于铅垂线原理的大坝水平位移测量系统。该系统以光栅尺、激光发射和接收器、减速电机为主要运动部件,以性能强大的ARM内核芯片为主控制器,采用大屏幕LCD为人机交互界面,实现对大坝水平横向和纵向的精确测量。该系统还具有人工手动实时测量、定时自动测量的功能,可以通过485总线上传测试结果到总控制中心进行显示和分析。实验结果表明,该系统具有精度高、成本低、误差小的优点。

关键词：光学测量大坝监测水平位移 ARM