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Rationally designing electrolyte additives for highly improving cyclability of liNi_(0.5)Mn_(1.5)O_(4)/Graphite cells

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Journal of Energy Chemistry 2024年第4期91卷 266-275页

作者： Zhiyong Xia Kuan Zhou Xiaoyan lin Zhangyating Xie Qiurong Chen Xiaoqing li Jie cai Suli li hai Wang Mengqing Xu Weishan li School of Chemistry South China Normal UniversityGuangzhou 510006GuangdongChina China Zhuhai CosMX Battery Co. Ltd.Zhuhai 519180GuangdongChina National and Local Joint Engineering Research Center of MPTES in High Energy and Safety liBs Engineering Research Center of MTEES(Ministry of Education)and Key Lab.of ETESPG(GHEI)South China Normal UniversityGuangzhou 510006GuangzhouChina

High voltage is necessary for high energy lithium-ion batteries but difficult to achieve because of the highly deteriorated cyclability of the batteries.A novel strategy is developed to extend cyclability of a high voltage lithium-ion battery,liNi_(0.5)Mn_(1.5)O_(4)/Graphite(LNMO/Graphite)cell,which emphasizes a rational design of an electrolyte additive that can effectively construct protective interphases on anode and cathode and highly eliminate the effect of hydrogen fluoride(HF).5-Trifluoromethylpyridine-trime thyl lithium borate(LTFMP-TMB),is synthesized,featuring with *** anion TFMPTMB-tends to be enriched on cathode and can be preferentially oxidized yielding TMB and radical TFMP-.Both TMB and radical TFMP can combine HF and thus eliminate the detrimental effect of HF on cathode,while the TMB dragged on cathode thus takes a preferential oxidation and constructs a protective cathode *** the other hand,LTFMP-TMB is preferentially reduced on anode and constructs a protective anode ***,a small amount of LTFMP-TMB(0.2%)in 1.0 M liPF6in EC/DEC/EMC(3/2/5,wt%)results in a highly improved cyclability of LNMO/Graphite cell,with the capacity retention enhanced from 52%to 80%after 150 cycles at 0.5 C between 3.5 and 4.8 *** as-developed strategy provides a model of designing electrolyte additives for improving cyclability of high voltage batteries.

关键词： Electrolyte additive Design and synthesis Cyclability High voltage batteries Cathode and anode interphases

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Efficient and accurate online estimation algorithm for zero-effort-miss and time-to-go based on data driven method

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Chinese Journal of Aeronautics 2019年第10期32卷 2311-2323页

作者： Hongxia li Huijie li Yuanli cai School of Electronic and Information Engineering Xi’an Jiaotong University

This paper introduces a novel and efficient algorithm for online estimation of zero-effortmiss and time-to-go based on data driven *** missile-target separations are utilized to construct the estimation models,and a practical Fisher fusion algorithm is derived to acquire the estimates with high accuracy and computational ***,the two parameters can be online estimated at a particular ***,the kinematics equations of the missile-target engagement are independent,and assumptions of the missile guidance system dynamics and behaviors of the missile and target are completely out of ***,the effectiveness and applicability are explicitly verified through various simulation scenarios.

关键词： Data driven Missile-target separations Online estimation Time-to-go Zero-effort-miss

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Structural screening of phosphorus sulfur ternary hydride PSH_(6) with a high-temperature superconductivity at 130 GPa

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Frontiers of physics 2023年第2期18卷 205-211页

作者： Yu-Long hai He-Jin Yan Yong-Qing cai Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoTaipaMacaoChina

In our study,we constructed a series of inorganic nonmetallic ternary hydrides PSH6 by first-principles structural screening under pressure of 200 *** structural stability under lower pressure are *** on the structural stability,electronic and phonon properties,as well as the possible superconducting properties within the framework of Bardeen−Cooper−Schrieffer(BCS)theory,we show that PSH6 with space group possesses a superconducting transition temperature of 146 K at 130 *** the pressure range of 100−200 GPa,our work suggests that the ternary phosphorus-sulfur-hydrogen would act as a promising compositional and elemental space for achieving high-temperature superconductivity.

关键词： phosphoruses sulfur hydrides high-temperature superconductivity low-pressure structural screening

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Graph Regularized L_p Smooth Non-negative Matrix Factorization for Data Representation

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IEEE/CAA Journal of Automatica Sinica 2019年第2期6卷 584-595页

作者： Chengcai Leng hai Zhang Guorong cai Irene Cheng Anup Basu the School of Mathematics Northwest University School of Mathematics and Information Sciences Nanchang Hangkong University Nanchang 330063 China the Department of Computing Science University of Alberta the Faculty of Information Technology & State Key Laboratory of Quality Research in Chinese Medicines Macao University of Science and Technology the College of Computer Engineering Jimei University the Department of Computing Science University of Alberta

This paper proposes a Graph regularized Lpsmooth non-negative matrix factorization(GSNMF) method by incorporating graph regularization and L_p smoothing constraint, which considers the intrinsic geometric information of a data set and produces smooth and stable solutions. The main contributions are as follows: first, graph regularization is added into NMF to discover the hidden semantics and simultaneously respect the intrinsic geometric structure information of a data set. Second,the Lpsmoothing constraint is incorporated into NMF to combine the merits of isotropic(L_2-norm) and anisotropic(L_1-norm)diffusion smoothing, and produces a smooth and more accurate solution to the optimization problem. Finally, the update rules and proof of convergence of GSNMF are given. Experiments on several data sets show that the proposed method outperforms related state-of-the-art methods.

关键词： Data clustering dimensionality reduction graph regularization Lp smooth non-negative matrix factorization(SNMF)

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Synthesis of Mg_2B_2O_5 whiskers via coprecipitation and sintering process

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International Journal of Minerals,Metallurgy and Materials 2012年第10期19卷 969-972页

作者： Dong-hai Zhu Xue-ying Nai Cheng-cai Zhu Feng-qin Guo Shao-ju Bian Wu li Qinghai Institute of Salt Lakes Chinese Academy of Sciences Xining 810008 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Department o f Basin Education Qinghai University Xining 810016 China

Mg2B2O5 whiskers with high aspect ratio were synthesized by coprecipitation and sintering process using MgCl2-6H2O, H3BO3, and NaOH as raw materials and KCl as a flux. Their formation process was investigated by thermogravimetry and differential scanning calo- rimetry （TG-DSC）, X-ray diffraction （XRD）, and scanning electron microcopy （SEM）. It is found that the products synthesized at 832℃ are monoclinic Mg2B205 whiskers with a diameter of 200-400 nm and a length of 50-80 μm. Transmission electron microscopy （TEM） and selected area electron diffraction （SAED） analyses show that the whiskers obtained at 832℃ are single crystalline and grow along with the [010] direction. The growth mechanism of Mg2B2O5 whiskers was also presented.

关键词： magnesium borate coprecipitation sintering crystal whiskers crystal growth microstructure

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The application of EPICS in TMSR radiation protection and access control system

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Nuclear Science and Techniques 2016年第2期27卷 58-63页

作者： li-Feng Han Yong-Zhong Chen Jun cai hai-Xia Xu Wen-Bo Huang Ning Zhang li-Xin Han Peng-Fei Hong Shanghai Institute of Applied Physics Chinese Academy of Science

To treat technical problems of data acquisition,alarm management, and historical data archiving of radiation protection control system in Thorium Molten Salt Reactor, a network prototype system was designed based on experimental physics and industrial control *** level of many locations in Jiading campus of Shanghai Institute of Applied Physics is being continuously monitored, and boundaries of accelerator facilities and radiochemical areas are defined by the access control system. In this paper, we introduce the control system design,including human–machine interfaces, alarm system, historical data archiving system, and the software for access control. The software development followed the standard of Capability Maturity Model Integration(CMMIò) Level3, and the software had passed a third-party test, which indicated that the functionality and the reliability could fulfill the requirements of the radiation protection system.

关键词：访问控制系统辐射防护应用能力成熟度模型史诗工业控制系统放射防护历史数据

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High-drug-loading capacity of redox-activated biodegradable nanoplatform for active targeted delivery of chemotherapeutic drugs

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Regenerative Biomaterials 2020年第4期7卷 359-369页

作者： hai Zhang Jianqin Yan Heng Mei Shengsheng cai Sai li Furong Cheng Jun Cao Bin He School of Chemical Engineering Sichuan UniversityNo.24 South Section 1Yihuan RoadChengdu 610065China National Engineering Research Center for Biomaterials Sichuan UniversityNo.29 Wangjiang RoadChengdu 610064China

Challenges associated with low-drug-loading capacity,lack of active targeting of tumor cells and unspecific drug release of nanocarriers synchronously plague the success of cancer ***,we constructed active-targeting,redox-activated polymeric micelles(HPGssML)selfassembled aptamer-decorated,amphiphilic biodegradable poly(benzyl malolactonate-co-e-caprolactone)copolymer with disulfide linkage and p-conjugated *** with a homogenous spherical shape and nanosized diameter(-150 nm)formed a low critical micellar concentration(10^-3mg/mL),suggesting good stability of polymeric *** anticancer drug,doxorubicin(DOX),can be efficiently loaded into the core of micelles with high-drug-loading content via strong π-π interaction,which was verified by a decrease in fluorescence intensity and redshift in UV adsorption of DOX in *** redox sensitivity of polymeric micelles was confirmed by size change and in vitro drug release in a reducing *** microscopy and flow cytometry assay demonstrated that conjugating aptamers could enhance specific uptake of HPGssML by cancer *** in vitro cytotoxicity study showed that the half-maximal inhibitory concentration(IC50)of DOX-loaded HPGssML was two times lower than that of the control group,demonstrating improved antitumor ***,the multifunctional biodegradable polymeric micelles can be exploited as a desirable drug carrier for effective cancer treatment.

关键词： good stability,π-conjugated moieties active-targeting,redox-activated

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Mitochondria-acting carrier-free nanoplatform self-assembled by a-tocopheryl succinate carrying cisplatin for combinational tumor therapy

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Regenerative Biomaterials 2021年第4期8卷 51-61页

作者： Heng Mei Jing li Shengsheng cai Xuequan Zhang Wenqiang Shi hai Zhu Jun Cao Bin He National Engineering Research Center for Biomaterials Sichuan UniversityNo.29 Wangjiang RoadChengdu 610064China School of Chemical Engineering Sichuan UniversityNo.24 South Section 1Yihuan RoadChengdu 610065China

Unsatisfactory drug loading capability,potential toxicity of the inert carrier and the limited therapeutic effect of a single chemotherapy drug are all vital inhibitory factors of carrier-assisted drug delivery systems for *** address the above obstacles,a series of carrier-free nanoplatforms self-assembled by dual-drug conjugates was constructed to reinforce chemotherapy against tumors by simultaneously disrupting intratumoral DNA activity and inhibiting mitochondria *** this nanoplatform,the mitochondria-targeting small-molecular drug,a-tocopheryl succinate(TOS),firstly self-assembled into nanoparticles,which then were used as the carrier to conjugate cisplatin(CDDP).Systematic characterization results showed that this nanoplatform exhibited suitable particle size and a negative surface charge with good stability in physicochemical environments,as well as pH-sensitive drug release and efficient cellular *** to the combined effects of reactive oxygen species(ROS)generation by TOS and DNA damage by CDDP,the developed nanoplatform could induce mitochondrial dysfunction and elevated cell apoptosis,resulting in highly efficient anti-tumor outcomes in ***,the combined design principles adopted for carrier-free nanodrugs construction in this study aimed at targeting different intracellular organelles for facilitating ROS production and DNA disruption can be extended to other carrier-free nanodrugs-dependent therapeutic systems.

关键词： carrier-free nanodrugs cisplatin a-tocopheryl succinate dual-drug conjugate

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区域一体化与企业数字化转型——基于市场竞争和创新驱动的视角

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云南财经大学学报 2025年第1期41卷 51-68页

作者：李志聪蔡欣荣陆帆中南财经政法大学财政税务学院武汉430073 中央财经大学财政税务学院北京102206

通过以长三角区域一体化试点政策为准自然实验,利用2008—2021年沪深A股上市企业的数据,考察了区域一体化政策对企业数字化转型的影响和内在机理。研究发现,区域一体化政策能够显著提升企业数字化水平,该结论在稳健性检验后仍然成立。... 详细信息

通过以长三角区域一体化试点政策为准自然实验,利用2008—2021年沪深A股上市企业的数据,考察了区域一体化政策对企业数字化转型的影响和内在机理。研究发现,区域一体化政策能够显著提升企业数字化水平,该结论在稳健性检验后仍然成立。从不同维度来看,区域一体化政策显著促进了数字技术发展的深度(底层数字技术应用)和融合发展的广度(智能制造和互联网商业模式)。机制检验表明,区域一体化政策改善了宏观层面的市场竞争环境和创新环境,从而增强了企业面临的赶超压力和驱动企业进行创新策略调整,进而提升企业数字化水平。异质性分析表明,区域一体化政策的数字化发展效应主要存在于国有企业、成长型企业、数字金融发展水平高和知识产权保护重视程度高的地区。进一步研究显示,区域一体化政策不仅促进了企业专业化分工,同时改善了企业资源错配。研究结论不仅为化解企业数字化转型困境提供了经验证据,也为政府深入推进区域一体化协调发展和构建统一大市场提供参考。

关键词：区域一体化企业数字化转型市场竞争创新驱动

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Re–Os dating of molybdenite and in-situ Pb isotopes of sulfides from the Lamo Zn–Cu deposit in the Dachang tin-polymetallic ore field, Guangxi, China

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Acta Geochimica 2018年第3期37卷 384-394页

作者： hai Zhao Wenchao Su Peng Xie Nengping Shen Jiali cai Ming Luo Jie li Zhian Bao State Key Laboratory of Ore Deposit Geochemistry Institute of Geochemistry Chinese Academy of SciencesGuiyang 550081 China University of Chinese Academy of Sciences Beijing 100049China limited Company of Jilang Indium Industries Nandan 547200 China State Key Laboratory of Isotope Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640 China State Key Laboratory of Continental Dynamics Department of Geology Northwest University Xi'an 710069 China Present Address: 99 linchengxi Road Guanshanhu DistrictGuiyang 550081 China

The Dachang tin-polymetallic district, Guangxi,China, is one of the largest tin ore fields in the world. Both cassiterite-sulfide and Zn–Cu skarn mineralization are hosted in the Mid-Upper Devonian carbonate-rich sediments adjacent to the underlying Cretaceous Longxianggai granite(91–97 Ma). The Lamo Zn–Cu deposit is a typical skarn deposit in the district and occurs at the contact zone between the Upper Devonian limestone and the *** ore minerals mainly consist of sphalerite, arsenopyrite,pyrrhotite, galena, chalcopyrite, and minor ***, the age of mineralization and source of the metals are not well constrained. In this study, we use the molybdenite Re–Os dating method and in-situ Pb isotopes of sulfides from the Lamo deposit for the first time in order to directly determine the age of mineralization and the tracing source of metals. Six molybdenite samples yielded a more accurate Re–Os isochron age of 90.0 ± 1.1 Ma(MSWD = 0.72), which is much younger than the reported garnet Sm–Nd isochron age of 95 ± 11 Ma and quartz fluid inclusions Rb–Sr isochron age of 99 ± 6 Ma. This age is also interpreted as the age of Zn–Cu skarn mineralization in the Dachang district. Further, in this study we found that in-situ Pb isotopes of sulfides from the Lamo deposit and feldspars in the district's biotite granite and granitic porphyry dikes have a narrow range and an overlap of Pb isotopic compositions(^(206) Pb/^(204) Pb =18.417–18.594,^(207) Pb/^(204) Pb = 15.641–15.746, and^(208) Pb/^(204) Pb = 38.791–39.073), suggesting that the metals were mainly sourced from Cretaceous granitic magma.

关键词： Molybdenite Re-Os dating In-situ leadisotopes Skarn deposit - Dachang

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