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Nanomaterials for lithium rechargeable batteries

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Nanomaterials for lithium rechargeable batteries

在单张黑白感光片上多色图像的密着网屏脉冲宽度编码(英文)

The 1st International Congress on Advanced Materials 2011

作者： h.k.liu Institute for Superconducting ＆ Electronic Materials ARC Centre for Electromaterials Science University of Wollongong

Lithium rechargeable batteries are important for electrochemical energy storage and *** order to meet global requirements for clean emissions, it is necessary to develop new materials and better technologies for electric and hybrid electric vehicles, as well as for other energy storage *** electrochemical performance of lithium ion batteries strongly depends on the cathode materials, anode materials, and *** have a critical role to play in achieving high electrochemical performance in rechargeable lithium batteries due to their special properties, which differ from those of their bulk material *** talk will highlight our recent efforts in developing new approaches to control the structure, chemistry, shape, and functionality of nanostructures for applications in lithium rechargeable *** presented will include carbon coated Si nanoparticles, self-catalysis-grown SnO2 nanowires, nanostructured V2O5 , and high surface area, hollow-structured α-Fe2O3 /carbon nanocomposite, and LiFePO4 -Fe2P-C nanocomposite as electrode materials for next generation lithium rechargeable batteries.

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光学学报 1984年第8期4卷 706-713页

作者： C.k.Chiang 母国光 h.k.liu 南开大学阿拉巴玛大学阿拉巴玛大学美

本文描述了以密着网屏脉冲宽度在单张高反差黑白感光板上的调制作彩色图像的编码和在白光图像处理器中再现成彩色图像的理论和实验.本技术的编码部分与Rogers,Sehdev及其它半色调屏法相似,但是,我们的目的和再现过程与他们的不同.

关键词：密着单张回医编码多色图彩色图像脉冲宽度脉冲特性

Effect of Nano-SiC and Nano-Si Doping on Critical Current Density of MgB_2

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Tsinghua Science and Technology 2003年第3期8卷 307-315页

作者： h.k.liu S.h.Zhou S.Soltanian J.horvat A.V.Pan M.J.Qin X.L.Wang M.Lonescu S.X.Dou Institute for Superconducting and Electronic Materials University of WollongongNorthfields AvenueWollongong NSW2522AustraliaInstitute for Superconducting and Electronic MaterialsUniversity of WollongongNorthfields AvenueWollongong NSW2522AustraliaInstitute for Superconducting and Electronic MaterialsUniversity of WollongongNorthfields AvenueWollongong NSW2522AustraliaInstitute for Superconducting and Electronic MaterialsUniversity of WollongongNorthfields AvenueWollongong NSW2522AustraliaInstitute for Superconducting and Electronic MaterialsUniversity of WollongongNorthfields AvenueWollongong NSW2522AustraliaInstitute for Superconducting and Electronic MaterialsUniversity of WollongongNorthfields AvenueWollongong NSW2522AustraliaInstitute for Superconducting and Electronic MaterialsUniversity of WollongongNorthfields AvenueWollongong NSW2522AustraliaInstitute for Superconducting and Electronic MaterialsUniversity of WollongongNorthfields AvenueWollongong NSW2522AustraliaInstitute for Superconducting and Electronic MaterialsUniversity of WollongongNorthfields AvenueWollongong NSW2522Australia

The discovery of superconductivity in magnesium diboride (MgB2) has opened up a new field in materials science research. It offers a possibility of a new class of high performance superconducting materials for practical applications because of the relatively low cost of fabrication, high critical current densities (Jc) and fields, large coherence length, absence of weak links, higher Tc(TC = 39k) compared with Nb3Sn and Nb-Ti alloys (two or four times that of Nb,,Sn and Nb-Ti alloys). however, the weak flux pinning in the magnetic field remains a major challenge. This paper reports the most interesting results on nanomaterial (SiC and Si) doping in magnesium diboride. The high density of nano-scale defects introduced by doping is responsible for the enhanced pinning. The fabrication method, critical current density, microstructures, flux pinning and cost for magnesium diboride bulks, wires and tapes are also discussed. It is believed that high performance SiC doped MgB2 will have a great potential for many practical applications at 5k to 25k up to 5T.

关键词： magnesium diboride (MgB2) MgB2/Fe wires doped with nano-SiC MgB2/Fe wires doped with nano-Si critical current density flux pinning

Photoluminescence properties and energy transfer behavior of Eu2+/Tb3+ co-doped Ba3Sc(PO4)3 phosphors

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Photoluminescence properties and energy transfer behavior of...

Synthesis and luminescence properties of blue-emitting phosphor Ba3Lak(PO4)3F:Eu2+ for n-UV white-light-emitting diodes

第二届海峡两岸功能材料科技与产业峰会（2015）

作者： h.k.liu L.F.Mei L.B.Liao School of Materials Sciences and Technology China University of Geosciences

BaSc(PO):Eu,Tb(BSP:Eu,Tb)phosphors were successfully prepared via conventional high-temperature solid-state reaction,their luminescence properties as well as energy transfer mechanism have been investigated in *** ene...

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Synthesis and luminescence properties of blue-emitting phosp...

The Impact of Nanocomposite Materials on Lithium Ion Batteries

第二届海峡两岸功能材料科技与产业峰会（2015）

作者： X.X.Ma Y.Q.liu h.k.liu L.F.Mei L.B.Liao School of Materials Sciences and Technology China University of Geosciences

A series of blue-emitting phosphors BaLak(PO)F:x Eu(BLkPF:x Eu)were synthesized based on the conventional high-temperature solid-state *** photoluminescence(PL)and diffuse reflection spectra had been investigated *** phosphor exhibited strong broad absorption band in the near ultraviolet(n-UV)range from 200 to 450 nm,and generated bright blue emission centered at 460 nm upon 388 nm excitation *** critical Eu quenching concentration(QC)mechanism was ascribed to

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复旦学报（自然科学版） 2007年第5期46卷 667-页

作者： Z.P.Guo S.h.Ng Z.W.Zhao k.konstantinov h.k.liu Institute for Superconducting and Electronic Materials University of Wollongong

1 Results Lithiumion batteries have become the power source of choice for consumer electronic devices such as cell phones and laptop computers due to their high energy density and long cycle life. In addition,lithium-ion batteries are expected to be a major breakthrough in the hybrid vehicle *** their successful commercial application,further performance improvement of the lithium ion battery is still *** and nanotechnologies can lead to a new generation of lithium secondary...

关键词： nanocomposite lithium ion batteries

Linear OPF-based Robust Dynamic Operating Envelopes with Uncertainties in Unbalanced Distribution Networks

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Journal of Modern Power Systems and Clean Energy 2024年第4期12卷 1320-1326页

作者： Bin liu Julio h.Braslavsky Nariman Mahdavi Energy Centre Commonwealth Scientific and Industrial Research Organisation(CSIRO)Newcastle 2300Australia the Network Planning Division TransgridSydney 2000Australia the Energy Systems Program Energy CentreCommonwealth Scientific and Industrial Research Organisation(CSIRO)Newcastle 2300Australia

Dynamic operating envelopes(DOEs),as key enablers to facilitate distributed energy resource(DER)integration,have attracted increasing attention in the past ***,uncertainties,which may come from load forecasting errors or inaccurate network parameters,have been rarely discussed in DOE calculation,leading to compromised quality of the hosting capacity allocation *** letter studies how to calculate DOEs that are immune to such uncertainties based on a linearised unbalanced three-phase optimal power flow(UTOPF)*** uncertain parameters constrained by norm balls,formulations for calculating robust DOEs(RDOEs)are presented along with discussions on their *** cases,including a 2-bus illustrative network and a representative Australian network,are tested to demonstrate the effectiveness and efficiency of the proposed approach.

关键词： Distributed energy resource(DER) dynamic operating envelope(DOE) feasible region robust optimisation uncertainty modelling unbalanced optimal power flow

Spontaneous Recovery in Directed Dynamical Networks

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Engineering 2024年第6期37卷 208-214页

作者： Xueming liu Xian Yan h.Eugene Stanley School of Artificial Intelligence and Automation&The MOE Engineering Research Center of Autonomous Intelligent Unmanned Systems&the key Laboratory of Image Processing Huazhong University of Science and TechnologyWuhan 430074China Center for Polymer Studies Department of PhysicsBoston UniversityBostonMA 02215USA

Complex networked systems,which range from biological systems in the natural world to infrastructure systems in the human-made world,can exhibit spontaneous recovery after a failure;for example,a brain may spontaneously return to normal after a seizure,and traffic flow can become smooth again after a *** studies on the spontaneous recovery of dynamical networks have been limited to undirected ***,most real-world networks are *** fill this gap,we build a model in which nodes may alternately fail and recover,and we develop a theoretical tool to analyze the recovery properties of directed dynamical *** find that the tool can accurately predict the final fraction of active nodes,and the prediction accuracy decreases as the fraction of bidirectional links in the network increases,which emphasizes the importance of directionality in network *** to different initial states,directed dynamical networks may show alternative stable states under the same control parameter,exhibiting hysteresis *** addition,for networks with finite sizes,the fraction of active nodes may jump back and forth between high and low states,mimicking repetitive failure-recovery *** findings could help clarify the system recovery mechanism and enable better design of networked systems with high resilience.

关键词： Network resilience Directed dynamical networks Spontaneous recovery

One Dimensional Nanostructures for Lithium-ion Batteries, Gas Sensors and Optoelectronics Applications

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复旦学报（自然科学版） 2007年第5期46卷 763-页

作者： G.X.Wang M.S.Park J.S.Park X.L.Gou J.Yang D.Wexler J.Z.Wang J.Yao h.k.liu School of Mechanical Materials and Mechatronic EngineeringUniversity of Wollongong Institute for Superconducting & Electronic Materials University of Wollongong

1 Results One dimensional (1D) nanostructures such as nanowires,nanotubes,nanorods and nanoribbons have been extensively investigated for a wide range of applications[1].here,we present the synthesis,characterization and technological applications of several 1D nanostructures including SnO2 nanowires,CuO nanoribbons,CdSe nanowires and In2O3 ***2 nanowires were synthesized by thermal evaporation combined with a self-catalyzed growth *** electron microscopy (SEM) observation shows...

关键词： 1 D nanostructure Li-ion battery gas sensors optoelectronics