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Artificial Solid Electrolyte Interphase Acting as “ Arm.r” to Protect the Anode m.terials for High-perform.nce Lithium.ion Battery

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Chem.cal Research in Chinese Universities 2020年第3期36卷 402-409页

作者： w.NG Haitao tang Yongbing Functional Thin Film. Research Center Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055P.R.China

The electrochem.cal perform.nces of lithium.ion batteries(LIBs)are closely related to the interphase betw.en the electrode m.terials and ***,the developm.nt of lithium.ion batteries is ham.ered by the form.tion of uncontrollable solid electrolyte interphase(SEI)and subsequent potential safety issues associated w.th dendritic form.tion and cell short-circuits during *** artificial SEI layer can be one prom.sing approach to solve the above *** review.sum.arizes the principles and m.thods of fabricating artificial SEI for three types of m.in anodes:deposition-type(e.g.,Li),intercalation-type(e.g.,graphite)and alloy-type(e.g.,Si,Al).The review.elucidates recent progress and discusses possible m.thods for constructing stable artificial SEIs com.osed of salts,polym.rs,oxides,and nanom.terials that sim.ltaneously passivate anode against side reactions w.th electrolytes and regulate Li^+ions transport at ***,the reaction m.chanism.of artificial SEIs w.s briefly analyzed,and the research prospect w.s also discussed.

关键词： Lithium.ion battery Artificial solid electrolytc interphase(SEI) Anode Reaction m.chanism

The Use of Enzym.-digested Soybean Residue For Feeding Com.on Carp

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Biom.dical and Environm.ntal Sciences 1996年第4期9卷 418-423页

作者： m.H.w.NG L.Y.tang 等 Departm.ntofBiology HongKongBaptistUniversityKowloonTongHongKong Departm.ntofAppliedBiologyandChem

This experim.nt w.s an attem.t to use the soybean residue derived from.the production of 'soy m.lk'. The residue contains about 18% protein, 70% caf bohydrates and 7.5% lipid as fish feed for reafing com.on carp, Cyrinus carpto. There w.re 4 types of diets: (1)soybean residue, (2 ) soybean residue digested w.th Papain, (3) soybean residue (64%)m.xed w.th beef liver (34%) and (4) sam. m.xture as (3) but digested w.th Papain. The results indicate that the percentage increase in w.ight and length of fish feeding w.th beef liver supplem.nted diets w.s higher than those feeding w.th soybean residue alone. This w.s possibly due to the fact that beef liver w.s able to supplem.nt the nutrient deficiency in soybean. The tw. types of feeds (2 and 4) digested w.th Papain also yielded significantly better fish grow.h in term. of w.ight and length gains, than their counterparts w.thout digestion. Furtherm.re, the w.ter turbidity of the tanks added w.th digested feeds w.s significantly less, as papain w.s able to hyrolyse the protein substrates suspended in the w.ter, and thus low.red the turbidity

关键词： In Res The Use of Enzym.-digested Soybean Residue For Feeding Com.on Carp

A Generalization of Vosper's Theorem

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Chinese Annals of m.them.tics,Series B 2024年第5期45卷 767-776页

作者： Yujie w.NG m.n tang School of m.them.tics and Statistics Anhui Normal UniversityWuhu 241002AnhuiChina

Let Z/m.Z be the ring of residual classes m.dulo m.and let A and B be nonem.ty subsets of Z/m.*** this paper,the authors give the structure of A and B for w.ich|A+B|=|A|+|B|-1=m.2.

关键词： Sum.ets Inverse problem Vosper's theorem Kem.erm.n's theorem

An Upper Bound for the w.w.ak Global Dim.nsion of Pullbacks

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Algebra Colloquium 2021年第4期28卷 689-700页

作者： Jin Xie Gaohua tang College of m.them.tical Sciences Sichuan Normal University Chengdu 610068China College of Sciences Beibu Gulf UniversityQinzhouGuangxi 535011China

Let R be a com.utative ring w.th identity and I0 an ideal of *** introduce and study the c-w.ak global dim.nsion ***(R/I0)of the factor ring R/*** T be a w.linked extension of R,and w. also introduce the w.-w.ak global dim.nsion ***(T)of *** show.that the ring T w.th ***(T)=0 is exactly a field and the ring T w.th ***(T)≤1 is exactly a *** an application,w. give an upper bound for the w.w.ak global dim.nsion of a Cartesian square(RDTF,m..m.re precisely,if T is w.linked over R,then ***(R)≤m.x{***(T)+w.fdR T,***(D)+w.fdn D}.Furtherm.re,for a m.lnor square(RDTF,m.,w. obtain ***(R)≤m.x{***(T)+w.fdR T,***(D)+w.fdR D}.

关键词： c-operation c-flat m.dule c-flat dim.nsion w.-flat m.dule w.-flat dim.nsion

AN EFFICIENT ADER DISCONTINUOUS GALERKIN SCHEm. FOR DIRECTLY SOLVING HAm.LTON-JACOBI EQUATION

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Journal of Com.utational m.them.tics 2020年第1期38卷 58-83页

作者： Junm.ng Duan Huazhong tang HEDPS CAPT&LMAMSchool of Mathematical SciencesPeking UniversityBeijing 100871China School of m.them.tics and Com.utational Science Xiangtan UniversityXiangtan 411105China

This paper proposes an efficient ADER(Arbitrary DERivatives in space and tim.)discontinuous Galerkin(DG)schem. to directly solve the Ham.lton-Jacobi *** m.lti-stage Runge-Kutta m.thods used in the Runge-Kutta DG(RKDG)schem.s,the ADER schem. is one-stage in tim. discretization,w.ich is desirable in m.ny *** ADER schem. used here relies on a local continuous spacetim. Galerkin predictor instead of the usual Cauchy-Kovalew.ki procedure to achieve high order accuracy both in space and *** such predictor step,a local Cauchy problem.in each cell is solved based on a w.ak form.lation of the original equations in *** resulting spacetim. representation of the num.rical solution provides the tem.oral accuracy that m.tches the spatial accuracy of the underlying DG *** schem. is form.lated in the m.dal space and the volum. integral and the num.rical fluxes at the cell interfaces can be explicitly *** explicit form.lae of the schem. at third order is provided on tw.-dim.nsional structured *** com.utational com.lexity of the ADER-DG schem. is com.ared to that of the RKDG *** experim.nts are also provided to dem.nstrate the accuracy and efficiency of our schem..

关键词： Ham.lton-Jacobi equation ADER Discontinuous Galerkin m.thods Local continuous spacetim. Galerkin predictor High order accuracy

Tw.-STAGE FOURTH-ORDER ACCURATE TIm. DISCRETIZATIONS FOR 1D AND 2D SPECIAL RELATIVISTIC HYDRODYNAm.CS

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Journal of Com.utational m.them.tics 2020年第5期38卷 768-796页

作者： Yuhuan Yuan Huazhong tang Center for Applied Physics and Technology HEDPSand LMAMSchool of Mathematical SciencesPeking UniversityBeijing 100871China

This paper studies the tw.-stage fourth-order accurate tim. discretization[*** and ***,SIAm.***.,38(2016)]and its application to the special relativistic hydrodynam.cal *** analysis reveals that the new.tw.-stage fourth-order accurate tim. discretizations can be *** the aid of the direct Eulerian GRP(generalized Riem.nn problem.m.thods and the analytical resolution of the local“quasi 1D”GRP,the tw.-stage fourth-order accurate tim. discretizations are successfully im.lem.nted for the 1D and 2D special relativistic hydrodynam.cal *** num.rical experim.nts dem.nstrate the perform.nce and accuracy as w.ll as robustness of our schem.s.

关键词： Tim. discretization Shock-capturing schem. GRP m.thod Relativistic hydrodynam.cs Hyperbolic conservation law.

Effect of vanadium.carbide on com.ercial pure alum.num

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International Journal of m.nerals,m.tallurgy and m.terials 2017年第7期24卷 833-841页

作者： Hua-ping Sun Jun w. Tian tang Bo Fan Zheng-hua tang School of m.terials Science and Engineering Sichuan University Chengdu 610065 China

The effect of vanadium.carbide（VC） on the grain size of com.ercial pure alum.num.w.s experim.ntally investigated by varying the content of VC, the holding tim., and casting tem.erature. The refining efficiencies of VC and Al5Ti1 B w.re also com.ared. The refined sam.les of com.ercial pure alum.num.w.re exam.ned using optical m.croscopy, scanning electron m.croscopy（SEm. and energy-dispersive spectroscopy（EDS）. The results suggest that VC is a good refiner of com.ercial pure alum.num. The addition of only 0.3w.% VC can decrease the grain size of alum.num.to 102 μm. w.ereas the casting tem.erature and holding tim. have little effect on the grain size. The refining efficiency of VC is better than that of Al5Ti1 B. The VC particles in m.lten alum.num.act as nuclei and the grain refinem.nt of alum.num.alloys by VC particles is achieved via heterogeneous nucleation.

关键词： grain refinem.nt vanadium.carbide heterogeneous nucleation alum.num

ON THE EXPLICIT Tw.-STAGE FOURTH-ORDER ACCURATE TIm. DISCRETIZATIONS

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Journal of Com.utational m.them.tics 2023年第2期41卷 305-324页

作者： Yuhuan Yuan Huazhong tang Center for Applied Physics and Technology HEDPS and LMAMSchool of Mathematical SciencesPeking UniversityBeijing 100871China Nanchang Hangkong University Nanchang 330063China

This paper continues to study the explicit tw.-stage fourth-order accurate tim. discretizations[5-7].By introducing variable w.ights,w. propose a class of m.re general explicit one-step tw.-stage tim. discretizations,w.ich are different from.the existing m.thods,*** Euler m.thods,Runge-Kutta m.thods,and m.ltistage m.ltiderivative m.thods *** study the absolute stability,the stability interval,and the intersection betw.en the im.ginary axis and the absolute stability *** results show.that our tw.-stage tim. discretizations can be fourth-order accurate conditionally,the absolute stability region of the proposed m.thods w.th som. special choices of the variable w.ights can be larger than that of the classical explicit fourth-or fifth-order Runge-Kutta m.thod,and the interval of absolute stability can be alm.st tw.ce as m.ch as the *** num.rical experim.nts are carried out to dem.nstrate the perform.nce and accuracy as w.ll as the stability of our proposed m.thods.

关键词： m.ltistage m.ltiderivative m.thods Runge-Kutta m.thods Absolute stability region Interval of absolute stability

Effects of Br^- and I^- concentrations on Zn electrodeposition from.am.oniacal electrolytes

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International Journal of m.nerals,m.tallurgy and m.terials 2015年第7期22卷 682-687页

作者： Zhi-m.i Xia Sheng-hai Yang Liang-hong Duan m.-tang tang School of m.tallurgy and Environm.nt Central South University School of m.tallurgical Engineering Hunan University of Technology

The effects of Br- and I- concentrations on the cell voltage, anodic polarization, current efficiency （CE）, and energy consum.tion （EC） of zinc electrodeposition from.am.oniacal am.onium.chloride solutions w.re investigated. The surface m.rphology of zinc deposits w.s also exam.ned. Scanning electron m.croscopy （SEm. and X-ray diffraction （XRD） w.re used to characterize the m.rphology of zinc deposits and the phase of anodic sedim.nts produced during electrolysis. The results clearly show.d that the CE slightly increased from.approxim.tely 95.12% in the absence of F and Br- to 97.08% in the presence of 10 g·L-1 Br; in contrast, the CE significantly decreased to less than 83% in the presence of 10 g·L-1 I- . The addition of Br and I- positively affected the EC, w.ich decreased from.2514 kw.h·t-1 to approxim.tely 2300 kw.h·t-1. The results of anodic polarization m.asurem.nts show.d that the voltage drops w.re 130 and 510 m. w.en the concentrations of Br- and I- w.re 10 g·L-1 at a eUlTent density of 400 A·m., respectively. SEm.im.ges show.d that the addition of Br- and I- caused different crystal grow.h m.chanism., w.ich resulted in the production of com.act and sm.oth zinc deposits. The anodic reactions of I w.re also studied.

关键词： zinc electrodeposition brom.de iodide am.onium.chloride current efficiency energy consum.tion