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Tailoring Practically Accessible Polymer/Inorganic Composite Electrolytes for All-Solid-State Lithium Metal Batteries:A Review

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Nano-Micro Letters 2023年第3期15卷 266-297页

作者： Hongmei Liang Li Wang Aiping Wang youzhi Song Yanzhou Wu Yang Yang Xiangming He Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084People’s Republic of China

Solid-state electrolytes(SSEs)are widely considered the essential components for upcoming rechargeable lithium-ion batteries owing to the potential for great safety and energy density.Among them,polymer solid-state electrolytes(PSEs)are competitive candidates for replacing commercial liquid electrolytes due to their flexibility,shape versatility and easy machinability.Despite the rapid development of PSEs,their practical application still faces obstacles including poor ionic conductivity,narrow electrochemical stable window and inferior mechanical strength.Polymer/inorganic composite electrolytes(PIEs)formed by adding ceramic fillers in PSEs merge the benefits of PSEs and inorganic solid-state electrolytes(ISEs),exhibiting appreciable comprehensive properties due to the abundant interfaces with unique characteristics.Some PIEs are highly compatible with high-voltage cathode and lithium metal anode,which offer desirable access to obtaining lithium metal batteries with high energy density.This review elucidates the current issues and recent advances in PIEs.The performance of PIEs was remarkably influenced by the characteristics of the fillers including type,content,morphology,arrangement and surface groups.We focus on the molecular interaction between different components in the composite environment for designing high-performance PIEs.Finally,the obstacles and opportunities for creating high-performance PIEs are outlined.This review aims to provide some theoretical guidance and direction for the development of PIEs.

关键词： Polymer Inorganic composite electrolytes All-solid-state lithium metal batteries Fillers Ionic conductivity High voltage

Functional Optical Fiber Sensors Detecting Imperceptible Physical/Chemical Changes for Smart Batteries

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NANO-MICRO LETTERS 2024年第1期16卷 1-41页

作者： Li, Yiding Wang, Li song, youzhi Wang, Wenwei Lin, Cheng He, Xiangming Tsinghua Univ Inst Nucl & New Energy Technol Beijing 100084 Peoples R China Beijing Inst Technol BIT Natl Engn Res Ctr Elect Vehicles Beijing 100081 Peoples R China Natl Engn Res Ctr Elect Vehicles Shenzhen Automot Res Inst BIT Shenzhen Res Inst Shenzhen 518118 Peoples R China

Research progress of advanced optical fiber sensors in traction batteries and energy storage batteries is summarized.The embedded application mechanisms of different optical fiber sensors in batteries are discussed.Advanced optical fiber sensors adapting to batteries with diverse materials are reviewed.Advanced optical fiber sensors driving the development of future smart batteries are prospected. The battery technology progress has been a contradictory process in which performance improvement and hidden risks coexist. Now the battery is still a "black box", thus requiring a deep understanding of its internal state. The battery should "sense its internal physical/chemical conditions", which puts strict requirements on embedded sensing parts. This paper summarizes the application of advanced optical fiber sensors in lithium-ion batteries and energy storage technologies that may be mass deployed, focuses on the insights of advanced optical fiber sensors into the processes of one-dimensional nano-micro-level battery material structural phase transition, electrolyte degradation, electrode-electrolyte interface dynamics to three-dimensional macro-safety evolution. The paper contributes to understanding how to use optical fiber sensors to achieve "real" and "embedded" monitoring. Through the inherent advantages of the advanced optical fiber sensor, it helps clarify the battery internal state and reaction mechanism, aiding in the establishment of more detailed models. These advancements can promote the development of smart batteries, with significant importance lying in essentially promoting the improvement of system consistency. Furthermore, with the help of smart batteries in the future, the importance of consistency can be weakened or even eliminated. The application of advanced optical fiber sensors helps comprehensively improve the battery quality, reliability, and life.

关键词： Smart battery Advanced embedded optical fiber sensor Battery internal physical/chemical state Quality-reliability-life characteristic LITHIUM-ION BATTERY IN-SITU MEASUREMENTS STATE-OF-CHARGE REFRACTIVE-INDEX THERMAL RUNAWAY LOW-TEMPERATURE STRAIN SENSOR LIQUID-LEVEL CELL STATE SAPPHIRE

Spatial distribution patterns of Symplocos congeners in a subtropical evergreen broad-leaf forest of southern China

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Journal of Forestry Research 2018年第3期29卷 765-776页

作者： Xiuqing Yang Haibing Yan Buhang Li youzhi Han Bo song College of Forestry Shanxi Agricultural University SYSU-Alberta Joint Lab for Biodiversity Conservation State Key Laboratory of Biocontrol School of Life Sciences Sun Yat-sen University Belle W. Baruch Institute of Coastal Ecology and Forest Science Clemson University

Studies on spatial distribution of congeneric species can supplement our understanding of species ecological processes. We analyzed population structure, spatial distribution, intra-and interspecific associations among six Symplocos tree species on a large(50 ha) plot in a subtropical, evergreen broad-leaf forest in southern China using spatial point pattern analysis methods. Our results suggested that the six Symplocos tree species were all clustered at small scales. The aggregation intensity of S. wikstroemiifolia with low abundance but relatively numerous large-diameter trees was much higher than that of the other five Symplocos species that occurred at high abundance but included few large-diameter trees. Spatial associations among the six congeners showed that 12 of 30 pairs were associated positively at small scales, and 13 of 30 pairs were unrelated. For species among different size classes, 79 of 120 pairs were not correlated, and 17 of 120 pairs were associated positively. These results showed insufficient evidence for interspecific competition and congeneric Symplocos species commonly coexist within subtropical plant communities. The spatial patterns of Symplocos species and their correlations changed with size(DBH) class and were simultaneously affected by spatial scales; the intensity of their aggregation and association decreased with increasing area of the sample plot.

关键词： Population structure Spatial patterns Spatial associations Symplocos

Functional Optical Fiber Sensors Detecting Imperceptible Physical/Chemical Changes for Smart Batteries

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Nano-Micro Letters 2024年第8期 274-314页

作者： Yiding Li Li Wang youzhi Song Wenwei Wang Cheng Lin Xiangming He Institute of Nuclear and New Energy Technology Tsinghua University National Engineering Research Center of Electric Vehicles Beijing Institute of Technology (BIT) Shenzhen Automotive Research Institute of BIT (Shenzhen Research Institute of National Engineering Research Center of Electric Vehicles)

The battery technology progress has been a contradictory process in which performance improvement and hidden risks coexist. Now the battery is still a “black box”, thus requiring a deep understanding of its internal state. The battery should “sense its internal physical/chemical conditions”, which puts strict requirements on embedded sensing parts. This paper summarizes the application of advanced optical fiber sensors in lithium-ion batteries and energy storage technologies that may be mass deployed, focuses on the insights of advanced optical fiber sensors into the processes of one-dimensional nano–micro-level battery material structural phase transition, electrolyte degradation, electrode–electrolyte interface dynamics to three-dimensional macro-safety evolution. The paper contributes to understanding how to use optical fiber sensors to achieve “real” and “embedded” monitoring. Through the inherent advantages of the advanced optical fiber sensor, it helps clarify the battery internal state and reaction mechanism, aiding in the establishment of more detailed models. These advancements can promote the development of smart batteries, with significant importance lying in essentially promoting the improvement of system consistency. Furthermore, with the help of smart batteries in the future, the importance of consistency can be weakened or even eliminated. The application of advanced optical fiber sensors helps comprehensively improve the battery quality, reliability, and life.

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我国天然林保护PPP治理框架构建与推进措施

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世界林业研究 2021年第5期34卷 91-96页

作者：王有志宋阳王媛贵州财经大学公共管理学院贵阳550025 东北林业大学经济管理学院哈尔滨150040

在天然林保护领域引入政府和社会资本合作(PPP),有利于充分发挥天然林资源的生态服务功能,实现森林生态产品供求有机链接,促进政府公共投资引导优势与社会资本资源开发技术优势以及市场发现优势正向互补。相比其他领域,目前尚未检索到... 详细信息

在天然林保护领域引入政府和社会资本合作(PPP),有利于充分发挥天然林资源的生态服务功能,实现森林生态产品供求有机链接,促进政府公共投资引导优势与社会资本资源开发技术优势以及市场发现优势正向互补。相比其他领域,目前尚未检索到天然林保护PPP的理论研究文献。文中对国内外相关理论研究和实践经验进行总结,分析我国天然林保护PPP的可行性与必要性,设计包括盈利模式、机制体系、具体型式和载体的天然林保护PPP治理框架,并给出相应的对策建议,以期推动我国天然林保护PPP的有效运转,为社会提供优质高效的森林生态产品和服务。

关键词：天然林保护政府和社会资本合作治理框架中国

湖南省普通高校学生阅读分享暨阅读推广人研讨会述评

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高校图书馆工作 2019年第5期39卷 71-75页

作者：陈有志宋小华龙敏湖南大学

2019年4月23日,湖南省普通高校学生阅读分享暨阅读推广人研讨会在湖南长沙举行。文章回顾了会议的策划与组织实施过程,并提出阅读推广会议的组织在参会主体、主讲嘉宾、会议形式上的重点考虑事项;阅读推广活动要关注四个问题:书目是阅... 详细信息

2019年4月23日,湖南省普通高校学生阅读分享暨阅读推广人研讨会在湖南长沙举行。文章回顾了会议的策划与组织实施过程,并提出阅读推广会议的组织在参会主体、主讲嘉宾、会议形式上的重点考虑事项;阅读推广活动要关注四个问题:书目是阅读推广的基础、阅读推广要以读书人为中心、阅读推广活动的关键是“恒”而不是“新”、阅读推广人要培养更要挖掘。

关键词：阅读推广阅读分享阅读活动研讨会

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贵州省生态扶贫及阻断返贫长效机制构建研究

经济研究导刊 2020年第35期 21-22页

作者：王有志宋阳贵州财经大学公共管理学院贵阳550025

通过对贵州省生态扶贫主要措施和取得成效的分析,提出当前推动生态扶贫进一步发展面临的主要问题,认为只有构建科学的长效机制体系才能从根本上解决绝对贫困和相对贫困问题。并针对这些问题提出构建阻断返贫的长效机制体系,以及保障这... 详细信息

通过对贵州省生态扶贫主要措施和取得成效的分析,提出当前推动生态扶贫进一步发展面临的主要问题,认为只有构建科学的长效机制体系才能从根本上解决绝对贫困和相对贫困问题。并针对这些问题提出构建阻断返贫的长效机制体系,以及保障这些机制有效运转的对策建议。

关键词：生态扶贫阻断返贫长效机制

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基于适航要求的某涡轴发动机最大不平衡探索

航空动力学报 2023年第6期38卷 1467-1473页

作者：宋明波严平王旭向有志杨洋谢荣华中国航发湖南动力机械研究所湖南株洲412002 军委审计署北京审计中心北京100041

以国内某在研民用涡轴发动机为对象,系统开展基于适航要求的最大不平衡探索研究。统计分析同构型同量级某在役涡轴发动机首次翻修间隔期不平衡量恶化情况,得到该涡轴发动机正常服役不平衡量恶化分布于20~70 g·mm,极个别情况下达到80 g... 详细信息

以国内某在研民用涡轴发动机为对象,系统开展基于适航要求的最大不平衡探索研究。统计分析同构型同量级某在役涡轴发动机首次翻修间隔期不平衡量恶化情况,得到该涡轴发动机正常服役不平衡量恶化分布于20~70 g·mm,极个别情况下达到80 g·mm以上,接近100 g·mm。在此基础上,基于短轴承半油膜模型进行该涡轴发动机转子不平衡响应计算分析,并在转子和整机平台上进行了最大不平衡探索试验。计算与试验结果均表明,在正常服役平衡恶化(70 g·mm)下,该发动机全转速范围振动平稳,能够稳定工作;特殊情况下,当不平衡量达到并超过100 g·mm时,发动机振动较大,尤其是不平衡呈反相位分布时,激起转子在第2阶临界转速区域剧烈振动,覆盖转速范围更宽,发动机无法正常工作。

关键词：适航涡轴发动机转子最大不平衡振动

1994-2007年中国主要城市的规模产出效应实证研究：一个面板模型

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地域研究与开发 2011年第1期30卷 46-50页

作者：张友志宋迎昌中国社会科学院研究生院江苏科技大学土木工程与建筑学院江苏镇江212003 中国社会科学院城市发展与环境研究所北京100005

建立柯布道格拉斯城市规模产出效应面板模型,对1994—2007年全国30个主要城市的规模产出效应进行了实证研究,研究表明,城市规模对产出有显著性影响,城市规模产出效应中包含显著的时间影响和地区影响。包含时间影响的变截距模型显示,城... 详细信息

建立柯布道格拉斯城市规模产出效应面板模型,对1994—2007年全国30个主要城市的规模产出效应进行了实证研究,研究表明,城市规模对产出有显著性影响,城市规模产出效应中包含显著的时间影响和地区影响。包含时间影响的变截距模型显示,城市规模产出弹性为0.128,时间影响系数由1994年的-0.652单调增加到2007年的0.615,说明城市规模产出效应、资源使用效率和城市化质量逐步提高;包含地区影响的变系数模型表明,城市规模对产出影响中存在显著的固定水平效应和增长效应,水平效应在-13.569和17.140之间,增长效应在0.438和5.0之间。研究结果同时显示,规模越大的城市通常具有更高的水平效应,但是增长效应却越低,这表明可能存在适度的最优城市规模。

关键词：城市规模产出效应城市规模产出弹性时间效应:地区效应