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Patent-based technological developments and surfactants application of lithium-ion batteries fire-extinguishing agent

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Journal of Energy Chemistry 2024年第1期88卷 39-63,I0002页

作者： jianqi zhang Tao Fan Shuai Yuan Chongye Chang Kuo Wang Ziwei Song Xinming Qian State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100084China Industrial Safety Research Institute China Academy of Safety Science and TechnologyBeijing 100012China Fire Engineering Department China People’s Police UniversityLangfang 065000HebeiChina

While newer,more efficient Lithium-ion batteries(LIBs)and extinguishing agents have been developed to reduce the occurrence of thermal runaway accidents,there is still a scarcity of research focused on the application of surfactants in different LIBs extinguishing agents,particularly in terms of patented *** aim of this review paper is to provide an overview of the technological progress of LIBs and LIBs extinguishing agents in terms of patents in Korea,Japan,Europe,the United States,China,*** initial part of this review paper is sort out LIBs technology development in different *** addition,to compare LIBs extinguishing agent progress and challenges of liquid,solid,combination of multiple,and *** subsequent section of this review focuses on an in-depth analysis dedicated to the efficiency and challenges faced by the surfactants corresponding design principles of LIBs extinguishing agents,such as nonionic and anionic surfactants.A total of 451,760 LIBs-related patent and 20 LIBs-fire-extinguishing agent-related patent were included in the *** extinguishing effect,cooling performance,and anti-recombustion on different agents have been *** a comprehensive comparison of these agents,this review suggests that temperature-sensitive hydrogel extinguishing agent is ideal for the effective control of LIBs *** progress and challenges of surfactants have been extensively examined,focusing on key factors such as surface activity,thermal stability,foaming properties,environmental friendliness,and electrical ***,it is crucial to emphasize that the selection of a suitable surfactant must align with the extinguishing strategy of the extinguishing agent for optimal firefighting effectiveness.

关键词： LIBs Fire-extinguishing agent Surfactants Patent

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Automation in road distress detection,diagnosis and treatment

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Journal of Road Engineering 2024年第1期4卷 1-26页

作者： Xu Yang jianqi zhang Wenbo Liu Jiayu Jing Hao Zheng Wei Xu School of Future Transportation Chang'an UniversityXi'an 710064China School of Highway Chang'an UniversityXi'an 710064China School of Information Engineering Chang'an UniversityXi'an 710064China

Road transportation plays a crucial role in society and daily life,as the functioning and durability of roads can significantly impact a nation's economic *** the whole life cycle of the road,the emergence of disease is unavoidable,so it is necessary to adopt relevant technical means to deal with the *** study comprehensively reviews the advancements in computer vision,artificial intelligence,and mobile robotics in the road domain and examines their progress and applications in road detection,diagnosis,and treatment,especially asphalt ***,it analyzes the research progress in detecting and diagnosing surface and internal road distress and related techniques and algorithms are *** addition,also introduces various road gover-nance technologies,including automated repairs,intelligent construction,and path planning for crack *** their proven effectiveness in detecting road distress,analyzing diagnoses,and planning maintenance,these technologies still confront challenges in data collection,parameter optimization,model portability,system accuracy,robustness,and real-time ***,the integration of multidisciplinary technologies is imperative to enable the development of an integrated approach that includes road detection,diagnosis,and *** paper addresses the challenges of precise defect detection,condition assessment,and unmanned *** the same time,the efficiency of labor liberation and road maintenance is achieved,and the automation level of the road engineering industry is improved.

关键词： Road detection Road diagnosis Road treatment Deep learning Intelligent maintenance

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Manipulating Nanowires in Interconnecting Layer for Efficient Tandem Organic Photovoltaics

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Chinese Journal of Chemistry 2024年第4期42卷 377-383页

作者： Yanjie Tang Jiaming Fu Hao Li Du Hyeon Ryu Won Suk Shin jianqi zhang Yi Yang Yiming Yang Deyuan Li Zhong Zheng Shaoqing zhang Jianhui Hou School of Chemistry and Biology Engineering University of Science and Technology Beijing(USTB)Beijing100083 China State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular SciencesInstitute of ChemistryChinese Academy of Sciences(ICCAS)Beijing100190 China Energy Materials Research Center Korea Research Institute of Chemical Technology(KRICT)Advanced Materials&Chemical EngineeringUniversity of Science&Technology(UST)Korea The National Center for Nanoscience and Technology(NCNST) Beijing100190 China University of Chinese Academy of Sciences Beijing(UCAS) Beijing100049 China China Railway Resources Group Survey and Design Co.Ltd. LangfangHebei065000 China

Owing to the function of manipulating light absorption distribution,tandem organic solar cells containing multiple sub-cells exhibit high power conversion ***,there is a substantial challenge in precisely controlling the inter-subcells carrier migration which determines the balance of charge transport across the entire *** conductivity of"nanowires"-like conducting channel in interconnecting layer between sub-cells should be improved which calls for fine engineering on the morphology of polyelectrolyte in interconnecting ***,we develop a simple method to effectively manipulating the domains of conductive components in commercially available polyelectrolyte PEDOT:*** use of poor solvent could effectively modify the configuration of polystyrene sulfonic acid and thus the space for conductive *** on our strategy,the insulated shells wrapping conductive domains are thinned and the efficiencies of tandem organic solar cells are *** believe our method might provide guidance for the manufacture of tandem organic solar cells.

关键词： Tandem organic solar cells Power conversion efficiency interconnecting layer Tunneling junction Interfacial layers Conformationanalysis π-πstacking Donor-acceptorsystems

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基于行内局部性的内存控制器端预取

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高技术通讯 2024年第3期34卷 248-255页

作者：周叔欣张见齐王焕东章隆兵处理器芯片全国重点实验室(中国科学院计算技术研究所) 北京100190 中国科学院计算技术研究所北京100190 中国科学院大学北京100049 龙芯中科技术股份有限公司北京100190

本文提出一种基于行内局部性的内存控制器端预取。采用位图的数据结构记录行内每个数据块的状态;并且对每一行进行区域划分,量化每个区域的访问局部性;根据区域内的局部性高低决定预取的激进程度。对于局部性较低的区域,预取区域内未被... 详细信息

本文提出一种基于行内局部性的内存控制器端预取。采用位图的数据结构记录行内每个数据块的状态;并且对每一行进行区域划分,量化每个区域的访问局部性;根据区域内的局部性高低决定预取的激进程度。对于局部性较低的区域,预取区域内未被访问过的数据块;对于局部性较高的区域,同时采用跨区域的预取。通过动态调整区域规模的大小来适应局部性程度的变化。上述预取方法在龙芯3A6000处理器上实现并评测,评测程序采用SPEC CPU2006访存密集型应用。评测结果显示本文的预取方法将每周期指令数(IPC)平均提升6.51%,将单线程IPC最高提升46.80%(bwaves),将双核四线程IPC最高提升26.22%(lbm)。

关键词：内存控制器预取局部性

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数字经济背景下“新零售”驱动产品全渠道供应链整合优化

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商业经济 2024年第7期 77-80页

作者：张建奇广州城市职业学院广东广州510405

随着数字经济的高速发展,“新零售”模式应运而生,成为零售业一大变革。“新零售”整合线上线下多渠道资源,推动了商品供应链管理的革命。通过探讨在数字经济背景下,如何通过“新零售”模式驱动产品全渠道供应链整合优化,进而提高供应... 详细信息

随着数字经济的高速发展,“新零售”模式应运而生,成为零售业一大变革。“新零售”整合线上线下多渠道资源,推动了商品供应链管理的革命。通过探讨在数字经济背景下,如何通过“新零售”模式驱动产品全渠道供应链整合优化,进而提高供应链管理的效能和响应速度。研究发现:利用大数据预测分析及其算法在精准需求预测上具有显著效果,能够有效降低库存成本,提高存货周转率;而云计算在供应链节点的信息集成处理方面显示出较强的数据处理能力和资源优化配置功能。研究结论指出:全面推进供应链的数字化变革是实现供应链体系在“新零售”发展下整合与优化的关键。

关键词：新零售全渠道供应链整合大数据分析云计算供应链优化

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降低全聚合物太阳能电池光伏效率的温度依赖性

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Science China Materials 2024年第1期67卷 47-57页

作者：张伟超杨镕申乐耀昌程倩张莹玉张建齐肖林格李世麟姚果张春峰周惠琼张渊 School of Chemistry Beijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijing 100191China Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China National Laboratory of Solid-State Microstructures School of Physics and Collaborative Innovation Center for Advanced MicrostructuresNanjing UniversityNanjing 210008China

全聚合物太阳能电池(All-PSCs)具有良好的机械稳定性和热稳定性,受到人们的广泛关注.目前,提高全聚合物太阳能电池性能的关键是改善活性层的形貌.本文通过逐层(LBL)工艺,优化了薄膜形貌,实现了更好的电荷产生和传输,增加了激子扩散长度... 详细信息

全聚合物太阳能电池(All-PSCs)具有良好的机械稳定性和热稳定性,受到人们的广泛关注.目前,提高全聚合物太阳能电池性能的关键是改善活性层的形貌.本文通过逐层(LBL)工艺,优化了薄膜形貌,实现了更好的电荷产生和传输,增加了激子扩散长度,提高了电荷产量,并抑制了复合损失.此外,本文进一步研究了LBL制备的全聚合物太阳能电池中的激子/电荷行为与温度的依赖性关系.详细的原位光谱测量和光电特性表征表明,独特的形态延长了激子寿命,减少了电荷陷阱,并促进了电荷传输和收集.因此,准双层PM6/PYF-T-o器件的能量转换效率(PCE)显著提高(16.70%).此外,与BHJ器件相比,通过LBL工艺制备的器件,实现了增强的分子有序性,降低了能级混乱度,使得器件填充系数和PCE温度依赖性减弱.本工作为太阳能电池在温度可变环境下的电荷传输行为和光伏性能提供了新的认识,也为其实际应用提供了理论依据.

关键词：能量转换效率太阳能电池温度依赖性电荷传输机械稳定性填充系数活性层 LBL

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基于CFD的管道漏损模拟检测与评估研究

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水资源与水工程学报 2024年第2期35卷 122-129页

作者：陶怡严栋飞马玲娜杨会甲张建奇西安航天自动化股份有限公司陕西西安710065

为研究管道漏损对供水管道中水力要素变化的影响,基于计算流体动力学(CFD)方法模拟分析了有、无漏损点和不同漏损点尺寸下供水管道内部水流流动及流场变化过程。以1#管道模拟结果为例,t=4 s时,无漏损管道拟设漏损点附近流速为0.16 m/s,... 详细信息

为研究管道漏损对供水管道中水力要素变化的影响,基于计算流体动力学(CFD)方法模拟分析了有、无漏损点和不同漏损点尺寸下供水管道内部水流流动及流场变化过程。以1#管道模拟结果为例,t=4 s时,无漏损管道拟设漏损点附近流速为0.16 m/s,压力为0.015 kPa;漏损管道漏损点附近流速峰值为0.32 m/s,压力峰值为0.068 kPa。管道整体结果表明1,管道无泄漏时,拟设漏损点附近管段内压力和流速波动较小;因泄漏,漏损管道漏损点附近管段内压力和流速出现峰值,且由沿程变化曲线可得,漏损点下游管段内压力和流速大小明显低于无漏损管道。不同模拟条件下漏损点所在管道内流速和压力具有相似的数值变化规律,但压力比流速变化更剧烈。漏损点尺寸大小与管道内流速和压力的数值变化成反比。本研究对供水管道漏损监测方案制定及监测设备布局优化具有重要的参考价值。

关键词：计算流体动力学管道漏损压力流速监测数值模拟

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Halogenated thiophene substitutions on quinoxaline unit to achieve morphology optimization in efficient organic solar cells

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Nano Research 2023年第9期16卷 11630-11637页

作者： Dingding Qiu jianqi zhang Kun Lu Zhixiang Wei CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and TechnologyBeijing 100190China Sino-Danish Center for Education and Research Sino-Danish CollegeUniversity of Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China

Halogenated thiophenes are generally used units for constructing organic semiconductor materials for photovoltaic ***,we introduced thiophene,2-bromothiophene,and 2-chlorothiophene units to the central core of quinoxaline-based acceptors and obtained three acceptors,Qx-H,Qx-Br,and Qx-Cl,*** with Qx-H,Qx-Br and Qx-Cl showed enhanced absorption,down-shifted energy levels,improved crystallinity,and reduced energy *** improved crystallinity significantly optimized the blend morphology,leading to efficient charge generation and transport and,therefore,less bimolecular ***,PM6:Qx-Br-based devices exhibited an outstanding power conversion efficiency of 17.42%with a high open-circuit voltage(VOC)of 0.915 ***,Y6 was introduced into the PM6:Qx-Br binary system to improve the light utilization,and the resulting ternary devices delivered a high PCE of 18.36%.This study demonstrated the great potential of halogenated thiophene substitution in quinoxaline-based acceptors for building high-performance organic solar cell acceptor materials.

关键词： halogenated thiophene units non-fullerene acceptors organic solar cells quinoxaline acceptors morphology optimization

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Slot-die coated large-area flexible all-polymer solar cells by nonhalogenated solvent

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Nano Research 2023年第12期16卷 13008-13013页

作者： Yi-Fan Shen jianqi zhang Chenyang Tian Dingding Qiu Zhixiang Wei CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Sino-Danish Center for Education and Research Sino-Danish CollegeUniversity of Chinese Academy of SciencesBeijing 100049China

The slot-die coating is recognized as the most compatible method for the roll-to-roll(R2R)processing of large-area flexible organic solar cells(OSCs).However,the photovoltaic performance of the large-area flexible all-polymer solar cells was significantly lagging behind that of polymer donors with small molecule non-fullerene acceptors *** this work,the 1 cm^(2) flexible device of an all-polymer system,PTQ10:PYF-T-o,fabricated by slot-die coating,achieves an excellent efficiency of 11.24%via controlling the coating *** is found that,compared with the donor,the crystallinity of PYF-T-o plays a crucial role in device *** all-polymer flexible devices show superior mechanical bending stability,maintaining an efficiency of over 95%of the initial value during a 1000-cycle bending test.

关键词： organic solar cells slot-die coating non-halogenated solvent flexible large-area devices morphology control

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玻璃钢行业挥发性有机物废气的环境监测及治理技术研究

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皮革制作与环保科技 2024年第15期5卷 68-70页

作者：张建琦丁国伟刘洪忠潍坊市安丘生态环境监控中心山东潍坊261061 潍坊市生态环境局安丘分局山东潍坊262100

随着全球环境保护意识的增强,各国对工业排放的要求也日益严格,挥发性有机化合物(VOCs)作为主要的空气污染物之一,其治理已成为环境保护的重点。玻璃钢行业在生产过程中会释放大量VOCs,这对环境和公共健康都带来了潜在的危害。对于玻璃... 详细信息

随着全球环境保护意识的增强,各国对工业排放的要求也日益严格,挥发性有机化合物(VOCs)作为主要的空气污染物之一,其治理已成为环境保护的重点。玻璃钢行业在生产过程中会释放大量VOCs,这对环境和公共健康都带来了潜在的危害。对于玻璃钢行业而言,环境监测是首要任务,有效的监测方法应能够实时、准确地监测VOCs的浓度和种类,调整生产流程,减少污染;而在治理技术方面,玻璃钢行业需通过治理技术减少VOCs的排放。所以,玻璃钢行业挥发性有机物废气的环境监测及治理技术的研究和应用,对于保护环境和公共健康具有重要意义。只有不断加强环境监测、改进生产工艺、采用废气治理技术,我们才有望打赢这场“蓝天保卫战”。

关键词：玻璃钢行业有机废气环境监测治理技术

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