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Li-ion transport in solid-state electrolyte of Li_(1-x)Al_(1-x)Si_(2+x)O_(6):an ab initio study

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Rare Metals 2023年第7期42卷 2261-2271页

作者： Wen-Jun Li Modeste-Venin-Mendieev Nitou Jia-Yi Zheng Zhi-Yuan Zhang Long-Fei Liu Jin-Lan Nie Ying-Hua Niu Liang An wei-qiang lv School of Physics University of Electronic Science and Technology of ChinaChengdu611731China Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou313001China Department of Mechanical Engineering the Hong Kong Polytechnic UniversityHong Kong999077China

All-solid-state batteries are considered as nextgeneration technology for energy storage due to their high energy density and excellent s ***,only a few solid electrolytes exhibit ionic conductivities comparable to liquid *** low-cost solid electrolytes with high Liion conductivity is in high *** on the ab initio molecular dynamic simulations,the Li^(+)diffusion inβ-LiAISi_(2)O_(6),a type of cost-effective and naturally-available mineral,and its disordered systems Li_(1-x)Al_(1-x)Si_(2+x)O_(6)with-1.0≤x≤0.5 was *** calculations show that the phases of Li_(1-x)Al_(1-x)Si_(2+x)O_(6)with nonzero x all possess much lower diffusion energy barriers than pristine LiAlSi_(2)O_(6).When x is positive,increased concentration of lithium vacancies accelerates the diffusion of *** x is negative,additional Li-ions are inserted into structures and co-migration is stimulated among these *** particular,the maximal ionic conductivity at 300 K(1.92×10^(-6)S·cm^(-1))is obtained in Li_(2)Al_(2)SiO_(6)(x=-1.0),which is five orders of magnitude larger than that of pristineβ-LiAlSi_(2)O_(6).In addition,the diffusion barrier can be further reduced to 0.38 eV by replacing Si with Ge,and the ionic conductivity for Li_(2)Al_(2)GeO_(6)can reach 3.08×10~(-5)S·cm^(-1)at 300 *** work facilitates the understanding of Li+conduction mechanisms in silicatebased electrolytes and the development of cost-effective and high-performance solid-s ate electrolytes.

关键词： Ionic conductivity Diffusion barrier Solid-state electrolyte(SSE) Ab initio molecular dynamics

A mild, configurable, flexible CoNi-LDH（v）/Zn battery based on H-vacancy-induced reversible Zn2+ intercalation

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Journal of Energy Chemistry 2025年第1期100卷 498-508页

作者： Xinyue Cheng Dingsheng Wu Hao Gao Qingqing Wang Pengfei lv Sam S.Yoon Qufu wei Key Laboratory of Eco-textiles Ministry of Education Jiangnan University School of Mechanical Engineering Korea University

Flexible Zn-based batteries have attracted increasing research interest as essential components of wearable energy storage ***,the advancement of flexible aqueous Zn-based batteries based on Co-Ni layered double hydroxide （CoNi-LDH） as the cathode material is hampered by their poor cycling stability and the corrosiveness of alkaline ***,CoNi-LDH nanosheets enriched with H vacancies (CoNi-LDH（v）) were constructed on a flexible carbon cloth （CC） substrate via electrochemical deposition and *** Zn-based battery comprising CoNi-LDH（v）@CC as the cathode exhibited highly reversible conversion reactions and stable operation in 3 M ZnSO4electrolyte （pH=4）.The battery delivered an excellent specific capacity (225 mA h g-1,0.26 mA h cm-2),acceptable cycling stability（53.9%,900 cycles）,and high discharging *** abundant H vacancies served as active sites for the reversible intercalation of Zn2+and the extravasation of NO3-generated channels and space for Zn2+transport and storage,together enabling an excellent Zn2+storage ***,a sandwich-structured solid-state CoNi-LDH（v）@CC//Zn@CC battery was fabricated and was found to exhibit a noteworthy electrochemical performance and mechanical *** a proof of concept,the unencapsulated battery powered a digital watch under various deformation conditions and operated stably for 80 ***,the flexible battery displayed outstanding customizability,maintaining an open-circuit voltage of 1.42 V even after being cut *** proposed engineering strategy contributes to the realization of textiles with truly wearable energy-storage devices.

关键词： CoNi/Zn battery H vacancies Mild aqueous electrolyte Tailorable battery Wearable energy storage device

Recent progress in constructing fluorinated solid-electrolyte interphases for stable lithium metal anodes

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 270-291页

作者： Di Zhang Pengfei lv wei Qin Xin He Yuanhua He Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province College of Civil Aviation Safety EngineeringCivil Aviation Flight University of ChinaGuanghan 618307China School of Chemical Engineering Sichuan UniversityChengdu 610065China

Lithium metal batteries(LMBs)are emerging as a promising energy storage solution owing to their high energy density and specific ***,the non-uniform plating of lithium and the potential rupture of the solid-electrolyte interphase(SEI)during extended cycling use may result in dendrite growth,which can penetrate the separator and pose significant short-circuit *** a stable SEI is essential for the long-term operation of the ***-rich SEI has garnered significant attention for its ability to effectively passivate electrodes,regulate lithium deposition,and inhibit electrolyte *** the structural components and preparation methods of existing fluorinated SEI is crucial for optimizing lithium metal anode *** paper reviews the research on optimizing LiF passivation interfaces to protect lithium metal *** focuses on four types of compositions in fluorinated SEI that work synergistically to enhance SEI *** instance,combining compounds with LiF can further enhance the mechanical strength and ionic conductivity of the *** metals with LiF significantly improves electrochemical performance at the SEI/anode interface,with a necessary focus on reducing electron tunneling ***,incorporating polymers with LiF offers balanced improvements in interfacial toughness and ionic conductivity,though maintaining structural stability over long cycles remains a critical area for future *** alloys combined with LiF increase surface energy and lithium affinity,challenges such as dendrite growth and volume expansion *** summary,this paper emphasizes the crucial role of interfacial structures in LMBs and offers comprehensive guidance for future design and development efforts in battery technology.

关键词： LiF lithium metal anodes solid-electrolyte interphase interface cycling stability

Integration of perioperative features and intragraft TCF7L2 expression to predict lipid metabolic disorder in liver transplant recipients

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Science China Life Sciences 2025年第1期 297-299页

作者： Junbin Zhou Rongli wei Guanghan Fan Zhengxing Lian Xuanyu Zhang Linsong Tang Zhetuo Qi Haiyang Xie Shusen Zheng qiang wei Xiao Xu Department of Hepatobiliary and Pancreatic Surgery People's Hospital of LishuiAffiliated Lishui Hospital of Wenzhou Medical UniversityThe First Affiliated Hospital of Lishui University NHFPC Key Laboratory of Combined Multi-Organ Transplantation Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province Department of Hepatobiliary and Pancreatic SurgeryHangzhou First People's Hospital Department of Hepatobiliary and Pancreatic Surgery The First Affiliated HospitalZhejiang University School of Medicine Department of Urology The Second Affiliated HospitalZhejiang University School of Medicine Department of Hepatobiliary and Pancreatic Surgery Department of Liver TransplantationShulan (Hangzhou) Hospital Hangzhou Medical College Zhejiang University School of Medicine

Dear Editor, Liver transplantation(LT) is the only curative therapy for patients with endstage liver disease(He et al., 2023; Ling et al., 2022). Post-transplant hypertriglyceridemia(PTHT), which has an incidence of up to 32.8% in 6 months after LT, is one of the major post-transplant complications(Toshima et al., 2020).

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2012-2016年四川省其他感染性腹泻流行病学特征分析

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寄生虫病与感染性疾病 2017年第3期15卷 152-155页

作者：刘雅琼廖雪春袁伟吕强刘学成四川省疾病预防控制中心成都610041

目的分析2012-2016年四川省其他感染性腹泻流行特征,为科学防治提供依据。方法从疾病监测信息报告管理系统中获取所有2012-2016年其他感染性腹泻报告卡,整理数据,采用描述性流行病学方法进行分析。结果 2012-2016年四川省累计报告其他... 详细信息

目的分析2012-2016年四川省其他感染性腹泻流行特征,为科学防治提供依据。方法从疾病监测信息报告管理系统中获取所有2012-2016年其他感染性腹泻报告卡,整理数据,采用描述性流行病学方法进行分析。结果 2012-2016年四川省累计报告其他感染性腹泻病例140 665例,年均发病数28 133例,发病率34.68/10万。3岁以下幼儿占病例总数的54.70%,0岁组发病数最多,占病例总数的30.11%,男女性别比为1.25∶1,散居儿童占病例总数的57.76%。全年有两个发病高峰。地区间发病水平差异明显。结论四川省其他感染性腹泻发病防控形势依然严峻,3岁以下散居儿童是防控工作的重点。

关键词：其他感染性腹泻流行病学

Ferrosilicon alloy granules prepared through centrifugal granulation process

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Journal of Iron and Steel Research International 2020年第11期27卷 1247-1258页

作者： Wen-chao He Xue-wei lv Zhi-ming Yan Gang-qiang Fan Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials Chongqing UniversityChongqing 400044China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China State Key Laboratory of Mechanical Transmissions Chongqing UniversityChongqing 400044China

A novel granulation process that involved the use of a rotary multi-nozzles cup atomizer and water cooling was proposed for ferroalloy *** effects of rotating speed and nozzle diameter on the properties of FeSi75 alloy(containing 75 wt.%Si)granules were *** indicated that median granule diameter decreased as rotating speed in creased,and initially increased and then decreased as nozzle diameter in *** optimal conditi ons for the gra nulation of FeSi75 alloy were a rotating speed of 150 r/min and nozzle diameter of 10 or 12 *** phase composition,micromorphology,and elemental distribution of the FeSi75 alloy granules were also studied by X-ray diffraction,scanning electron microscopy,and energy-dispersive X-ray *** order to provide guidance for the layout and water depth of the tank,the solidification behavior of ferrosilicon alloy droplet was numerically studied.A simplified model was established to elucidate the traveling trajectory and heat transfer of alloy droplet in air and cooling water during the atomization *** solidification time of droplet with different thicknesses of solidification layer increased with the in crease in alloy droplet diameter.

关键词： FeSi75 alloy Rotary multi-nozzles cup atomizer Size distribution Microstructural analysis Solidification behavior

Research Progress of Optical H2O Sensor With a DFB Diode Laser

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Photonic Sensors 2014年第2期4卷 113-119页

作者： Guangping lv Jun CHANG Qingpu WANG qiang WANG wei wei School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology andApplication Shandong University Jinan 250100 China

In the field of near infrared H2O sensing, the acquisition of the absorption signal usually is from a noisy background, thus it is important to adopt an effective signal demodulation method. This study introduced the research progress in the field of trace water vapor detection, covering different individual gas detection techniques. On the basis of the conventional double-beam differential absorption, the division method in voltage and the dual-peak method based on the differential value of two adjacent absorption lines have been studied. Voltage division has an excellent stability to temperature variation, mechanical extrusion, and fiber bend loss. The dual-peak method proved a linear relation with the water vapor concentration, and this method provided a way to measure the concentration at high pressure. Furthermore, the so called balanced ratiometer detection （BRD） was introduced. It has an outstanding self-adjusting capability, and it can also avoid an excess phase difference caused by the current-to-voltage converting circuit, thus this method has a high sensitivity. In addition, the second harmonic technique applied to gas detection was introduced, and for the high-frequency modulation via driving current, l/f was suppressed apparently; as a result, this technique realized a better sensitive detection by one to two orders of magnitude.

关键词： Water vapor gas sensing DFB diode laser absorption spectrum

Degraded creep resistance induced by static precipitation strengthening in high-pressure die casting Mg-Al-Sm alloy

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Journal of Materials Science & Technology 2024年第11期178卷 48-58页

作者： qiang Yang Shuhui lv Bo Deng Norbert Hort Yuanding Huang wei Sun Xin Qiu State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Materials Science and Engineering Changchun University of Science and TechnologyChangchun 130022China MagIC-Magnesium Innovation Centre Helmholtz-Zentrum HereonMax-Planck Strasse 1Geesthacht 21502Germany Institute of Product Technology and Systems Leuphana University LüneburgUniversiättsalleLüneburg 121335Germany

Relationship between precipitation strengthening and creep resistance improvement has been an impor-tant topic for the widespread applications of magnesium ***,static precipitation strength-ening through thermal stable precipitates would generate satisfactory creep ***,an op-posite example is presented in this work and we propose that the size of precipitates plays a crucial role in controlling the operative creep *** addition,the precipitate components along with their crystal structures in the crept Mg-4Al-3Sm-0.4Mn samples with/without pre-aging were thor-oughly studied using Cs aberration-corrected high-angle annular dark-field scanning transmission elec-tron microscopy(HAADF-STEM).Previous aging generates a large density of fine precipitates(<~5 nm)homogeneously distributing in Mg matrix and exhibiting satisfactory strengthening ***,the number density of precipitate strings consisting of several or even dozens of relatively coarse precipitates(~10 nm)was significantly decreased at the same *** revealed in this work,the relatively coarse particles in Mg matrix are much more efficient than the fine precipitates in promoting dislocation ***,the rate-controlling mechanisms are transferred from dislocation climb to dislocation slip after previous aging,thus leading to degradation of creep ***,there are mainly five types of precipitates/clusters,namelyβ"-(Al,Mg)3Sm,Al5Sm3,ordered Al-Sm cluster,ordered Al-Mn cluster and ordered/unordered AlMnSm *** crystal structures of the former two precipitates were discussed and the formation mechanisms of the precipitates/clusters were revealed.

关键词： Magnesium alloy Transmission electron microscopy Precipitation Creep resistance Segregation

Techniques for Design and Implementation of an FPGA-Specific Physical Unclonable Function

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Journal of Computer Science & Technology 2016年第1期31卷 124-136页

作者： Ji-Liang Zhang qiang Wu Yi-Peng Ding Yong-qiang lv qiang Zhou Zhi-Hua Xia Xing-Ming Sun Xing-wei Wang Software College Northeastern University Shenyang 110819 China College of Information Science and Engineering Hunan University Changsha 410082 China School of Physics and Electronics Central South University Changsha 410083 China Research Institute of Information Technology Tsinghua University Beijing 100084 China School of Computer and Software Nanjing University of Information Science and Technology Nanjing 210044 China

Physical unclonable function （PUF） makes use of the uncontrollable process variations during the production of IC to generate a unique signature for each IC. It has a wide application in security such as FPGA intellectual property （IP） protection, key generation and digital rights management. Ring oscillator （RO） PUF and Arbiter PUF are the most popular PUFs, but they are not specially designed for FPGA. RO PUF incurs high resource overhead while obtaining less challenge-response pairs, and requires ＂hard macros＂ to implement on FPGAs. The arbiter PUF brings low resource overhead, but its structure has big bias when it is mapped on FPGAs. Anderson PUF can address these weaknesses of current Arbiter and RO PUFs implemented on FPGAs. However, it cannot be directly implemented on the new generation 28 nm FPGAs. In order to address these problems, this paper designs and implements a delay-based PUF that uses two LUTs in an SLICEM to implement two 16-bit shift registers of the PUF, 2-to-1 multiplexers in the carry chain to implement the multiplexers of the PUF, and any one of the 8 flip-flops to latch 1-bit PUF signatures. The proposed delay-based PUF is completely realized on 28 nm commercial FPGAs, and the experimental results show its high uniqueness, reliability and reconfigurability. Moreover, we test the impact of aging on it, and the results show that the effect of aging on the proposed PUF is insignificant, with only 6% bit-flips. Finally, the prospects of the proposed PUF in the FPGA binding and volatile key generation are discussed.

关键词： physical unclonable function (PUF) FPGA intellectual property protection fabrication variation hardware security