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liquid-phase sintering enabling mixed ionic-electronic interphases and free-standing composite cathode architecture toward high energy solid-state battery

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Nano Research 2022年第7期15卷 6156-6167页

作者： Xiang Han Weijun Zhou Minfeng Chen linshan Luo Lanhui Gu Qiaobao Zhang Jizhang Chen Bo liu Songyan Chen Wenqing Zhang College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China Department of Physics Xiamen UniversityXiamen 361005China College of Mathematics and Physics Jinggangshan UniversityJi’an 343009China Department of Materials Science and Engineering College of MaterialsXiamen 361005China Department of Physics Southern University of Science and TechnologyShenzhen 518055China

Solid-state batteries(SSBs)will potentially offer increased energy density and,more importantly,improved safety for next generation lithium-ion(li-ion)*** enabling technology is solid-state composite cathodes with high operating voltage and area *** composite cathode manufacturing technologies,however,suffer from large interfacial resistance and low active mass loading that with excessive amounts of polymer electrolytes and conductive ***,we report a liquidphase sintering technology that offers mixed ionic-electronic interphases and free-standing electrode architecture design,which eventually contribute to high area capacity.A small amount(~4 wt.%)of lithium hydroxide(liOH)and boric acid(H_(3)BO_(3))with low melting point are utilized as sintering additives that infiltrate into single-crystal Ni-rich liNi_(0.8)Mn_(0.1)Co_(0.1)(NMC811)particles at a moderately elevated temperature(~350℃)in a liquid state,which not only enable intimate physical contact but also promote the densification *** addition,the liquid-phase additives react and transform to ionic-conductive lithium boron oxide,together with the indium tin oxide(ITO)nanoparticle coating,mixed ionic-electronic interphases of composite cathode are successfully ***,the liquid-phase sintering performed at high-temperature(~800℃)also enables the fabrication of highly dense and thick composite cathodes with a novel free-standing *** promising performance characteristics of such composite cathodes,for example,delivering an area capacity above 8 mAh·cm^(−2) within a wide voltage window up to 4.4 V,open new opportunities for SSBs with a high energy density of 500 Wh·kg^(−1) for safer portable electronic and electrical transport.

关键词： solid-state battery single-crystal Ni-rich liNi_(0.8)Mn_(0.1)Co_(0.1) liquid-phase sintering mixed ionic-electronic interphases freestanding architecture

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Start of vegetation growing season on the Tibetan Plateau inferred from multiple methods based on GIMMS and SPOT NDVI data

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Journal of Geographical Sciences 2015年第2期25卷 131-148页

作者： DING Mingjun li Lanhui ZHANG Yili SUN Xiaomin liU linshan GAO Jungang WANG Zhaofeng li Yingnian Key Lab of Poyang Lake Wetland and Watershed Research of Ministry of Education and School of Geography and Environment Jiangxi Normal University Nanchang 330022 China Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources Research (IGSNRR) CAS Beijing 100101 China CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing 10101 China Key Laboratory of Ecosystem Network Observation and Modeling IGSNRR CAS Beijing 100101 China Northwest Institute of Plateau Biology CAS Xining 810008 China

In this study, we have used four methods to investigate the start of the growing season （SGS） on the Tibetan Plateau （TP） from 1982 to 2012, using Normalized Difference Vegetation Index （NDVI） data obtained from Global Inventory Modeling and Mapping Studies （GIMSS, 1982-2006） and SPOT VEGETATION （SPOT-VGT, 1999-2012）. SGS values esti- mated using the four methods show similar spatial patterns along latitudinal or altitudinal gradients, but with significant variations in the SGS dates. The largest discrepancies are mainly found in the regions with the highest or the lowest vegetation coverage. Between 1982 and 1998, the SGS values derived from the four methods all display an advancing trend, however, according to the more recent SPOT VGT data （1999-2012）, there is no continu- ously advancing trend of SGS on the TP. Analysis of the correlation between the SGS values derived from GIMMS and SPOT between 1999 and 2006 demonstrates consistency in the tendency with regard both to the data sources and to the four analysis methods used. Com- pared with other methods, the greatest consistency between the in situ data and the SGS values retrieved is obtained with Method 3 （Threshold of NDVI ratio）. To avoid error, in a vast region with diverse vegetation types and physical environments, it is critical to know the seasonal change characteristics of the different vegetation types, particularly in areas with sparse grassland or evergreen forest.

关键词： phenology NDVI start of vegetation growing season method Tibetan Plateau

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Tuning the electron transport behavior at li/LATP interface for enhanced cyclability of solid-state li batteries

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Nano Research 2023年第1期16卷 1634-1641页

作者： linshan Luo Feng Zheng Haowen Gao Chaofei Lan Zhefei Sun Wei Huang Xiang Han Ziqi Zhang Pengfei Su Peng Wang Shengshi Guo Guangyang lin Jianfang Xu Jianyuan Wang Jun li Cheng li Qiaobao Zhang Shunqing Wu Ming-Sheng Wang Songyan Chen Department of Physics Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient DevicesKey Laboratory of Low Dimensional Condensed Matter Physics(Department of Education of Fujian Province)Jiujiang Research InstituteXiamen UniversityXiamen 361005China State Key Lab of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China Western Digital Corporation 951 Sandisk DrMilpitasCA 95035USA

An interlayer is usually employed to tackle the interfacial instability issue between solid electrolytes(SEs)and li metal caused by the side ***,the failure mechanism of the ionic conductor interlayers,especially the influence from electron penetration,remains largely ***,using li1.3Al0.3Ti1.7(PO4)3(LATP)as the model SE and liF as the interlayer,we use metal semiconductor contact barrier theory to reveal the failure origin of li/liF@LATP interface based on the calculation results of density functional theory(DFT),in which electrons can easily tunnel through the liF grain boundary with F vacancies due to its narrow barrier width against electron injection,followed by the reduction of ***,an Al-liF bilayer between li/LATP is found to dramatically promote the interfacial stability,due to the highly increased barrier width and homogenized electric field at the ***,the li symmetric cells with Al-liF bilayer can exhibit excellent cyclability of more than 2,000 h superior to that interlayered by liF monolayer(~860 h).Moreover,the li/Al-liF@LATP/liFePO4 solid-state batteries deliver a capacity retention of 83.2%after 350 cycles at 0.5 *** findings emphasize the importance of tuning the electron transport behavior by optimizing the potential barrier for the interface design in high-performance solid-state batteries.

关键词： solid-state electrolyte li metal liF Al electron transport interfacial barrier

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link Planning Algorithm of Communication and Navigation Constellation Based on Earth-Moon libration Point

Link Planning Algorithm of Communication and Navigation Cons...

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第十四届中国卫星导航年会

作者： linshan Xue Ziyu Wang Ping li China Academy of Space Technology (CAST)

With the development of China's lunar exploration project, China will implement manned lunar landing and lunar base construction mission. However, the existing ground-based communication and navigation(C&N) system will not be able to satisfy the needs of users and the accuracy of C&N services between the earth and the moon, as well as lunar surface. By constructing a C&N constellation at the Earth-Moon libration points, it improves the DOP of the navigation mission of Earth-Moon transfer space users. The C&N constellation support the formation of C&N capabilities in the Earth-Moon space and on the moon surface with a small number of satellites. In this paper, the C&N constellation scheme of the Earth-Moon libration point is adopted, which deploys the C&N satellites at the L2～L5 libration points. Aiming at the link planning problem between satellites and users in the constellation, beam scheduling and topology planning strategies are adopted through heuristic algorithms, and theoretical simulation is carried out.

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The spatial local accuracy of land cover datasets over the Qiangtang Plateau, High Asia

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Journal of Geographical Sciences 2019年第11期29卷 1841-1858页

作者： liU Qionghuan ZHANG Yili liU linshan li Lanhui QI Wei Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing 100101China

We analyzed the spatial local accuracy of land cover (LC) datasets for the Qiangtang Plateau,High Asia,incorporating 923 field sampling points and seven LC compilations including the International Geosphere Biosphere Programme Data and Information System (IGBPDIS),Global Land cover mapping at 30 m resolution (GlobeLand30),MODIS Land Cover Type product (MCD12Q1),Climate Change Initiative Land Cover (CCI-LC),Global Land Cover 2000 (GLC2000),University of Maryland (UMD),and GlobCover 2009 (Glob- Cover).We initially compared resultant similarities and differences in both area and spatial patterns and analyzed inherent relationships with data *** then applied a geographically weighted regression (GWR) approach to predict local accuracy *** results of this study reveal that distinct differences,even inverse time series trends,in LC data between CCI-LC and MCD12Q1 were present between 2001 and 2015,with the exception of category areal discordance between the seven *** also show a series of evident discrepancies amongst the LC datasets sampled here in terms of spatial patterns,that is,high spatial congruence is mainly seen in the homogeneous southeastern region of the study area while a low degree of spatial congruence is widely distributed across heterogeneous northwestern and northeastern *** overall combined spatial accuracy of the seven LC datasets considered here is less than 70%,and the GlobeLand30 and CCI-LC datasets exhibit higher local accuracy than their counterparts,yielding maximum overall accuracy (OA) values of 77.39% and 61.43%,***,5.63% of this area is characterized by both high assessment and accuracy (HH) values,mainly located in central and eastern regions of the Qiangtang Plateau,while most low accuracy regions are found in northern,northeastern,and western regions.

关键词： land cover datasets spatial accuracy assessment remote sensing Qiangtang Plateau High Asia

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Land use dynamics in Lhasa area, Tibetan Plateau

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Journal of Geographical Sciences 2010年第6期20卷 899-912页

作者： CHU DUO ZHANG Yili BIANBA Ciren liU linshan Tibet Institute of Plateau Atmospheric and Environmental Sciences CMA Lhasa 850000 China Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China

Land use change is the result of the interplay between socioeconomic, institutional and environmental factors, and has important impacts on the functioning of socioeconomic and environmental systems with important tradeoffs for sustainability, food security, biodiversity and the vulnerability of people and ecosystems to global change impacts. Based on the results of the First Land Use Survey in Tibet Autonomous Region carried out in the late 1980s land use map of Lhasa area in 1990 was compiled for the main agricultural area in Lhasa valley using aerial photos obtained in April, May and October 1991 and Landsat imagery in the late 1980s and 1991 as remotely sensed data sources. Using these remotely sensed data the land use status of Lhasa area in 1991, 1992, 1993, 1995, 1999 and 2000 were mapped through updating annual changes of cultivated land, artificial forest, grass planting, grassland restoration, and residential area and so on. Land use map for Lhasa area in 2007 was made using ALOS AVNIR-2 composite images acquired on October 24 and December 26, 2007 through updating changes of main land use types. According to land use status of Lhasa area in 1990, 1995, 2000 and 2007, the spatial and temporal land use dynamics in Lhasa area from 1990 to 2007 are further analyzed using GIS spatial models in this paper.

关键词： land use change Lhasa area Tibetan Plateau

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ADMETNet：The knowledge base of pharmacokinetics and toxicology network

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Journal of Genetics and Genomics 2017年第5期44卷 273-276页

作者： Quan Xu Ke liu Xingming lin Yangmei Qin linshan Chen Jiao Cheng Mindong Zhong Qiushun He Yinbo li Tingwu Wang Jianbo Pan Menglu Peng lixia Yao Zhiliang Ji State Key Laboratory of Stress Cell Biology School of Life SciencesXiamen UniversityXiamen 361102China Department of Health Sciences Research Mayo ClinicRochesterMN 55905USA The Key Laboratory 0r Chemical Biology of Fujian ProvinceXiamen UniversityXiamen 361005China

A good drug or drug candidate should not only interact with its target molecule effectively and specifically,but also be absorbed into the body,distributed to the right location,metabolized into right compounds,and eliminated out of the body in proper *** processes of drug getting into and out of the body involve Absorption,Distribution,Metabolism,and Excretion（ADME）,

关键词： interact eliminated getting Absorption absorbed manner candidate toxicity Browse Pathway

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Evolutionary mechanism and frequency response of graphite electrode at extreme temperatures

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Nano Research 2024年第8期17卷 7283-7289页

作者： Shanpeng Pei Zhiyong Zhang Xiuli Zhang Yan liu Xiang Han linshan Luo Pengfei Su Chaofei Lan Wei Huang Ziqi Zhang Ming-Sheng Wang Songyan Chen Department of Physics Xiamen UniversityXiamen 361005China Shandong Electric Power Engineering Consulting Institute Corporation Jinan 250031China State Key Lab of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China School of Semiconductor Science and Technology South China Normal UniversityFoshan 528225China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China National Key Laboratory of Integrated Circuits and Microsystems Chongqing 400000China

The battery management system is employed to monitor the external temperature of the lithium-ion battery in order to detect any potential ***,this outside–in detection method often suffers from a lag and is therefore unable to accurately predict the battery’s real-time ***,an inside–out frequency response approach is used to accurately monitor the battery’s state at various temperatures in real-time and correlate it with the solid electrolyte interphase(SEI)evolution of the graphite *** SEI evolution at temperatures of−15,25,60,and 90℃exhibits certain regular characteristics with temperature *** a temperature of−15℃,the li^(+)-solvent interaction of lithium-ion slowed down,resulting in a significant reduction in *** 25℃,a liF-rich inorganic SEI was identified as forming,which facilitated lithium-ion ***,high temperatures would induce decomposition of lithium hexafluorophosphate(liPF_(6))and lithium-ion *** the extreme temperature of 90℃,the SEI would be organic-rich,and li_(x)P_(y)F_(z),a decomposition product of lithium salts,was further oxidized to li_(x)PO_(y)F_(z),which led to a surge in the charge-transfer resistance at SEI(R_(sei))and a reduction in Coulombic efficiency(CE).This changing relationship can be recorded in real time from the inside out by electrochemical impedance spectroscopy(EIS)*** provides a new theoretical basis for the structural evolution of lithium-ion batteries and the regular characterization of EIS.

关键词： graphite electrode solid electrolyte interphase(SEI)film extreme temperatures frequency response evolutionary mechanism

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Characteristics of grassland degradation and driving forces in the source region of the Yellow River from 1985 to 2000

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Journal of Geographical Sciences 2006年第2期16卷 131-142页

作者： liU linshan ZHANG Yili BAI Wanqi YAN Jianzhong Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China College of Resources and Environment Southwest University Chongqing 400716 China Peking University Beijing 100871 China

The source region of the Yellow River is located in the middle east of the Tibetan Plateau in northwest China. The total area is about 51,700 km^2, mainly covered by grassland （79%）, unused land （16%） and water （4%）. The increasing land utilization in this area has increased the risk of environmental degradation. The land use/cover data （1985 and 2000） provided by the Data Center of Resources and Environment in the Chinese Academy of Sciences were used to analyze the land cover change in the source region of the Yellow River. DEM （1：250,000） data, roads and settlement data were used to analyze the spatial characteristics of grasslands degradation. The ArcGIS 9 software was used to convert data types and do the overlay, reclassification and zonal statistic analysis. Results show that grassland degradation is the most important land cover change in the study area, which occupied 8.24% of the region＇s total area. Human activities are the main causes of the grassland degradation in the source region of the Yellow River： 1） the degradation rate is higher on the sunny slope than on the shady slope; 2） the grassland degradation rate decreases with an increase in the elevation, and it has a correlation coefficient of -0.93; 3） the nearer to the settlements the grassland is, the higher the degradation rate. Especially within a distance range of 12 km to the settlements, the grassland degradation rate is highly related with the distance, with a coefficient of -0.99; and 4） in the range of 4 km, the degradation rate decreases with the increase of distance to the roads, with a correlation coefficient of -0.98. Besides some physical factors, human activities have been the most important driving forces of the grassland degradation in the source region of the Yellow River since 1985. To resolve the degradation problems, population control is essential, and therefore, it can reduce the social demand of livestock products from the grassland. To achieve sustainable development, it ne

关键词： source region of the Yellow River grassland degradation slope aspect elevation distance settlement roads

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Dimensional synthesis of a 3-DOF parallel manipulator based on dimensionally homogeneous Jacobian matrix

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Science China(Technological Sciences) 2010年第1期53卷 168-174页

作者： SUN Tao1,SONG YiMin1,li YongGang2 & liU linshan1 1 School of Mechanical Engineering,Tianjin University,Tianjin 300072,China 2 School of Mechanical Engineering,Tianjin University of Technology and Education,Tianjin 300222,China School of Mechanical Engineering Tianjin University Tianjin China School of Mechanical Engineering Tianjin University of Technology and Education Tianjin China

A study of dimensional synthesis of a 3-DOF parallel manipulator with coupling of translation and rotation is carried *** architecture of the manipulator is composed of a moving platform attached to a fixed base through three identical PRS(prismatic-revolute-spherical) serial limbs,whose unique topology leads to the physical unit inconsistency of the conventional Jacobian matrix and the emergence of the parasitic *** this paper introduces a kinetostatic performance index of the manipulator based on the condition of a dimensionally homogeneous Jacobian matrix,later,the workspace of the aforementioned manipulator is searched and the influence of the crucial design variables on the workspace is ***,a dimensional synthesis method of the manipulator is proposed,which may be regarded as a nonlinear programming problem with subject to the parasitic motion and other several engineering constraints.

关键词： PKMs(parallel kinematic machines) dimensional synthesis dimensionally homogeneous Jacobian 3-PRS manipulator workspace

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