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Science China(Technological Sciences) 2021年第12期64卷 2662-2675页

作者： li ChongYang li zhiqi JIANG ZaiNan CUI ShiPeng liU Hong CAI HeGao State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin 150001China

Autonomous planning is a significant development direction of the space manipulator,and learning from demonstrations(LfD)is a potential strategy for complex tasks in the ***,separating control from planning may cause large torque fluctuations and energy consumptions,even instability or danger in control of space manipulators,especially for the planning based on the human ***,we present an autonomous planning and control strategy for space manipulators based on LfD and focus on the dynamics uncertainty problem,a common problem of actual *** process can be divided into three stages:firstly,we reproduced the stochastic directed trajectory based on the Gaussian process-based LfD;secondly,we built the model of the stochastic dynamics of the actual manipulator with Gaussian process;thirdly,we designed an optimal controller based on the dynamics model to obtain the improved commanded torques and trajectory,and used the separation theorem to deal with stochastic characteristics during *** evaluated the strategy with locating pre-screwed bolts experiment by Tiangong-2 manipulator system on the *** result showed that,compared with other strategies,the strategy proposed in this paper could significantly reduce torque fluctuations and energy consumptions,and its precision can meet the task requirements.

关键词： space manipulator optimal control dynamics uncertainty learning from demonstrations

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Improving the performance of perovskite solar cells by surface passivation

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Journal of Energy Chemistry 2020年第7期29卷 202-207,I0007页

作者： Wenbin Han Guanhua Ren zhiqi li Minnan Dong Chunyu liu Wenbin Guo State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012JilinChina College of Materials Science and Engineering Jilin UniversityChangchun 130012JilinChina

NiO has a perfect-aligned energy level with CH3 NH3 Pb I3 perovskite such that it serves as a hole transport layer(HTL),but Ni O-based perovskite solar cells(PSCs)still suffer from low efficiency due to the poor interface contact between the perovskite layer and the Ni O HTL,and haphazardly stacked perovskite ***,poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-co-(1,4-benzo-{2,1,3}-thiadiazole)](PFBT)is introduced between the Ni O and perovskite layers in the form of a polymer aggregate to enhance perovskite crystallinity and decrease the interface charge recombination between perovskite and Ni O in PSCs,resulting in an improved ***,PFBT modified perovskite films showed sharper,smoother,and more compact crystalline grains with fewer grain boundaries,leading to the decreased nonradiative *** study offers a simple strategy to achieve highly efficient PSCs with the incorporation of polymer semiconductor aggregates to passivate the interface between the perovskite and Ni O layers.

关键词： Perovskite solar cells Hole transport Interface passivation Surface traps Crystallinity

Surface Passivation of Perovskite Solar Cells Toward Improved Efficiency and Stability

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Nano-Micro Letters 2019年第3期11卷 240-248页

作者： zhiqi li Jiajun Dong Chunyu liu Jiaxin Guo liang Shen Wenbin Guo State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilinUniversity2699Qianjin StreetChangchun130012People’s Republic of China State Key Laboratory of Superhard Materials Jilin University2699 Qianjin StreetChangchun130012People’s Republic of China

The advancement of perovskite solar cells(PVSCs)technology toward commercialized promotion needs high efficiency and optimum *** introducing a small molecular material such as tetratetracontane(TTC,CH3(CH2)42CH3)at the fullerene(C60)/perovskite interface of planar p-i-n PVSCs,we significantly reduced the interfacial traps,thereby suppressing electron recombination and facilitating electron ***,an improved efficiency of 20.05% was achieved with a high fill factor of 79.4%,which is one of the best performances for small molecular-modified ***,the hydrophobic TTC successfully protects the perovskite film from water *** a result,we realized a better long-term stability that maintains 87% of the initial efficiency after continuous exposure for 200 h in air.

关键词： Perovskite solar cells Surface passivation Charge transport Surface defect

Engineering CoMoO_(4) in reduced graphene oxide as superior cathode hosts for advanced room-temperature sodium-sulfur batteries

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Journal of Energy Chemistry 2023年第11期86卷 620-627,I0013页

作者： Xin Ye Sainan Luo zhiqi li Jiafeng Ruan Yuepeng Pang Junhe Yang John Wang Shiyou Zheng School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghai 200093China 2 Department of Materials Science and Engineering National University of SingaporeSingapore 119077Singapore

Promising room-temperature sodium-sulfur(RT Na-S)battery systems rely on purposely designed highperforming and low-cost electrode ***,there are the challenges of irreversible dissolution and slow redox kinetics of NaPSs in the complete discharge of sulfur ***,engineered CoMoO_(4)in reduced graphene oxide(CoMoO_(4)@rGO)is reported as a class of superior cathode hosts for RT Na-S *** CoMoO_(4)@rGO matrix is designed to facilitate the reversible sodiation and desodiation of sulfur,considering the strong chemisorption between sulfur(and short-chain sodium sulfides)and CoMoO_(4),which alleviates the shuttle effect of sodium sulfides and accelerates the electrochemical reaction rate at *** obtained S/CoMoO_(4)@rGO cathode with~52%S loading exhibits a high capacity of520.1 mA h g^(-1)after 100 cycles at 0.1 A g^(-1).Moreover,an enhanced long-term performance at high current densities(212.2 mA h g^(-1)at 4 A g^(-1)over 1000 cycles)with high Coulombic efficiency(~100%)is also *** work demonstrates a novel multifunctional additive for RT Na-S battery cathodes,which is expected to promote the long-waited development towards practical applications of RT Na-S batteries.

关键词： Sodium-sulfur battery Cathode CoMoO_(4) Reduced graphene oxide

Field measurement of wind-induced stress on glass facade of a coastal high-rise building

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Science China(Technological Sciences) 2011年第11期54卷 2587-2596页

作者： li ZhengNong LUO DieFeng SHI WenHai li zhiqi liANG XiaoHan Key Laboratory of Building Safety and Energy Efficiency of Hunan University Changsha 410082 China College of Architecture and Civil Engineering of Wenzhou University Wenzhou 325035 China

The glass facade of high-rise building in coastal areas is vulnerable under *** research works in the literature on facade's wind-resistance performance,however,have some limitations to apply to this *** typhoon landing,the whole facade will vibrate and deform due to the change of atmosphere,temperature and impacted torrential rain,to result in a quite different strain or stress distribution in the glass facade from those in model test and wind tunnel *** this paper,the field measurement on glass facade of a coastal high-rise building in Xiamen was performed,the wind pressure on the glass facade was measured and a large number of windinduced stress data were obtained during typhoon *** relationship between wind pressure and stress or strain of the glass panel was analyzed and the situation of stress distribution was summarized.

关键词： 0high-rise building glass facade wind-induced stress field measurement typhoon

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Tailoring the interaction of covalent organic framework with the polyether matrix toward high-performance solid-state lithium metal batteries

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Carbon Energy 2022年第4期4卷 506-516页

作者： Zhen Hou Shuixin Xia Chaoqun Niu Yuepeng Pang Hao Sun zhiqi li Yuxi Xu Shiyou Zheng School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghaiChina School of Engineering Westlake UniversityHangzhouChina

Solid polymer electrolyte is one of the most promising avenues to construct next-generation energy storage systems with high energy density,high safety,and flexibility,yet the low ionic conductivity at room temperature and poor high-voltage tolerance have limited their practical *** address the above issues,we design and synthesize a highly crystalline,vinyl-functionalized covalent organic framework(V-COF)rationally grafted with ether-based segments through solvent-free in situ polymerization.V-COF can afford a fast li+conduction highway along the one-dimensional nanochannels and improve the high-voltage stability of ether-based electrolytes due to the rigid and electrochemically stable *** as-formed solid-state electrolyte membranes demonstrate a superior ionic conductivity of 1.1×10^(−4)S cm^(−1)at 40℃,enhanced wide electrochemical window up to 5.0 V,and high Young's modulus of 92 *** li symmetric cell demonstrates ultralong stable cycling over 600 h at a current density of 0.1 mA cm^(−2)(40℃).The assembled solid-state li|liFePO4 cells show a superior initial specific capacity of 136 mAh g^(−1)at 1 C(1 C=170 mA g^(−1))and a high capacity retention rate of 84%after 300 *** study provides a novel and scalable approach toward high-performance solid ether-based lithium metal batteries.

关键词： covalent organic framework energy storage in situ polymerization solid polymer electrolyte

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建筑用光伏组件晶体硅电池疲劳损伤演化模型

太阳能学报 2014年第7期35卷 1258-1264页

作者：黎之奇湖南大学土木工程学院长沙410082

基于损伤力学理论,针对光伏组件的结构特点,建立在等幅循环荷载作用下光伏组件晶体硅电池的疲劳损伤演化模型,并与实验结果进行比较,结果表明,该模型能较好地描述组件电池片的损伤演化,即:损伤的累积是非线性的,在循环荷载作用初期电池... 详细信息

基于损伤力学理论,针对光伏组件的结构特点,建立在等幅循环荷载作用下光伏组件晶体硅电池的疲劳损伤演化模型,并与实验结果进行比较,结果表明,该模型能较好地描述组件电池片的损伤演化,即:损伤的累积是非线性的,在循环荷载作用初期电池片的损伤有一个快速发展过程,随着循环次数的增加,损伤的增速变缓。

关键词：光伏组件晶体硅电池循环荷载损伤变量

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建筑用光伏组件晶体硅电池疲劳损伤研究

太阳能学报 2014年第6期35卷 1004-1009页

作者：黎之奇湖南大学土木工程学院长沙410082

针对建筑用3.2 mm玻璃面板光伏组件,对组件晶体硅电池片在循环荷载作用下的损伤行为进行实验研究,结果表明,在恒幅循环荷载作用下电池片的损伤累积是非线性的,在循环加载的初期,电池片的损伤有一个快速发展的过程,因此在一些风压较高的... 详细信息

针对建筑用3.2 mm玻璃面板光伏组件,对组件晶体硅电池片在循环荷载作用下的损伤行为进行实验研究,结果表明,在恒幅循环荷载作用下电池片的损伤累积是非线性的,在循环加载的初期,电池片的损伤有一个快速发展的过程,因此在一些风压较高的地区应用建筑光伏时,应考虑由于外荷载作用所导致的组件性能衰减。

关键词：光伏组件晶体硅电池循环荷载疲劳损伤

Performance Art in China: A Historical Process

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校园英语 2020年第11期 255-256页

作者： li zhiqi

This paper contains the developing process of performance art in China shortly after Reform and Opening-up policy landed, offering a basic glance of performance artworks’ standers, and analyzing the cause of those significant steps within the specific background inside of the country and affected by the world. The usage of the body as a medium of Chinese artists would also provide a general idea of the opening ideology in the contemporary Chinese art system.

关键词： Performance Art China History and development

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光伏组件晶体硅电池片应力分析

太阳能学报 2015年第6期36卷 1493-1498页

作者：黎之奇湖南大学土木工程学院长沙410082

基于最小势能原理导出光伏组件晶体硅电池片位移场及应力场的级数解,并对面板尺寸为1580 mm×808 mm的195W单晶硅标准组件在风荷载作用下晶体硅电池片的应力进行计算和分析,考虑不同风压及EVA胶膜的厚度和剪切模量变化时对应力的影响。... 详细信息

基于最小势能原理导出光伏组件晶体硅电池片位移场及应力场的级数解,并对面板尺寸为1580 mm×808 mm的195W单晶硅标准组件在风荷载作用下晶体硅电池片的应力进行计算和分析,考虑不同风压及EVA胶膜的厚度和剪切模量变化时对应力的影响。结果表明:最大应力发生在电池片的中点,电池片的应力随EVA胶膜剪切模量的增加而呈非线性增大,随EVA胶膜厚度的增加而呈非线性减小。

关键词：光伏组件晶体硅电池位移场应力场