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Advancements and Challenges in Organic–Inorganic Composite Solid Electrolytes for All‑Solid‑State Lithium Batteries

Nano-Micro Letters 2025年第1期17卷 46-97页

作者： Xueyan Zhang Shichao Cheng Chuankai Fu Geping Yin Liguang Wang yongmin wu Hua Huo State Key Laboratory of Space Power‑Sources School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001People’s Republic of China College of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310058People’s Republic of China State Key Laboratory of Space Power-Sources 2965 Dongchuan RoadMinhang DistrictShanghai 200240People’s Republic of China

To address the limitations of contemporary lithium-ion batteries,particularly their low energy density and safety concerns,all-solid-state lithium batteries equipped with solid-state electrolytes have been identified as an up-and-coming *** the various SEs,organic–inorganic composite solid electrolytes(OICSEs)that combine the advantages of both polymer and inorganic materials demonstrate promising potential for large-scale ***,OICSEs still face many challenges in practical applications,such as low ionic conductivity and poor interfacial stability,which severely limit their *** review provides a comprehensive overview of recent research advancements in ***,the influence of inorganic fillers on the main functional parameters of OICSEs,including ionic conductivity,Li+transfer number,mechanical strength,electrochemical stability,electronic conductivity,and thermal stability are systematically *** lithium-ion conduction mechanism of OICSE is thoroughly analyzed and concluded from the microscopic ***,the classic inorganic filler types,including both inert and active fillers,are categorized with special emphasis on the relationship between inorganic filler structure design and the electrochemical performance of ***,the advanced characterization techniques relevant to OICSEs are summarized,and the challenges and perspectives on the future development of OICSEs are also highlighted for constructing superior ASSLBs.

关键词： Composite solid electrolytes Inorganic filler Interfacial stability Li-ion conduction mechanism Characterization techniques

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Engineering a flexible and mechanically strong composite electrolyte for solid-state lithium batteries

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Journal of Energy Chemistry 2020年第7期29卷 187-190,I0006页

作者： Tengrui Wang Ruiqi Zhang yongmin wu Guannan Zhu Chenchen Hu Jiayun Wen Wei Luo Institute of New Energy for Vehicles School of Materials Science and EngineeringTongji UniversityShanghai 201804China SAIC Motor Corporation Ltd Shanghai 201804China State Key Laboratory of Space Power-Sources Technology Shanghai Institute of Space Power-SourcesShanghai 200245China

Lithium-ion batteries(LIBs)have greatly facilitated our daily lives since 1990s[1,2].To meet the ever-increasing demand on energy density,Li metal is seen as the ultimate anode because of its ultra-high specific capacity(3860 m Ah/g)and the lowest electrochemical potential(-3.04 V *** standard hydrogen electrode)[3–6].However,issues of Li metal anode,such as Li dendrite formation and large volume change during plating/stripping。

关键词： Solid-state batteries Solid polymer electrolytes Blending Li6.5La3Zr1.5Ta0.5O12 Mechanical strength

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Anion Defects Engineering of Ternary Nb-Based Chalcogenide Anodes Toward High-Performance Sodium-Based Dual-Ion Batteries

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Nano-Micro Letters 2023年第7期15卷 218-232页

作者： Yangjie Liu Min Qiu Xiang Hu Jun Yuan Weilu Liao Liangmei Sheng Yuhua Chen yongmin wu Hongbing Zhan Zhenhai Wen College of Materials Science and Engineering Fuzhou UniversityFuzhou 350108People’s Republic of China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen EnergyFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002People’s Republic of China Fujian Normal University Fuzhou 350108People’s Republic of China State Key Laboratory of Space Power-Sources Technology Shanghai Institute of Space Power Sources2965 Dongchuan RoadShanghai 200245People’s Republic of China

Sodium-based dual-ion batteries(SDIBs) have gained tremendous attention due to their virtues of high operating voltage and low cost, yet it remains a tough challenge for the development of ideal anode material of SDIBs featuring with high kinetics and long durability. Herein, we report the design and fabrication of N-doped carbon film-modified niobium sulfur–selenium(NbSSe/NC) nanosheets architecture, which holds favorable merits for Na^(+) storage of enlarged interlayer space, improved electrical conductivity, as well as enhanced reaction reversibility, endowing it with high capacity, high-rate capability and high cycling stability. The combined electrochemical studies with density functional theory calculation reveal that the enriched defects in such nanosheets architecture can benefit for facilitating charge transfer and Na+ adsorption to speed the electrochemical kinetics. The NbSSe/NC composites are studied as the anode of a full SDIBs by pairing the expanded graphite as cathode, which shows an impressively cyclic durability with negligible capacity attenuation over 1000 cycles at 0.5 A g^(-1), as well as an outstanding energy density of 230.6 Wh kg^(-1) based on the total mass of anode and cathode.

关键词： NbSSe Sodium-based dual-ion battery Anode Nanosheets architecture Anion defects engineering

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Reinforced cathode-garnet interface for high-capacity all-solid-state batteries

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Materials Futures 2022年第4期1卷 144-153页

作者： Chenxi Zheng Shijun Tang Fangmei Wen Jinxue Peng wu Yang Zhongwei Lv yongmin wu Weiping Tang Zhengliang Gong Yong Yang College of Energy Xiamen UniversityXiamen 361102People’s Republic of China State Key Laboratory of Space Power-Sources Technology Shanghai Institute of Space Power-SourcesShanghai 200245People’s Republic of China State Key Laboratory for Physical Chemistry of Solid Surface Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005People’s Republic of China

Garnet-type solid-state electrolytes(SSEs)are particularly attractive in the construction of all-solid-state lithium(Li)batteries due to their high ionic conductivity,wide electrochemical window and remarkable(electro)chemical ***,the intractable issues of poor cathode/garnet interface and general low cathode loading hinder their practical ***,we demonstrate the construction of a reinforced cathode/garnet interface by spark plasma sintering,via co-sintering Li_(6.5)La_(3)Zr_(1.5)Ta_(0.5)O_(12)(LLZTO)electrolyte powder and LiCoO_(2)/LLZTO composite cathode powder directly into a dense dual-layer with 5 wt%Li_(3)BO_(3)as sintering *** bulk composite cathode with LiCoO_(2)/LLZTO cross-linked structure is firmly welded to the LLZTO layer,which optimizes both Li-ion and electron ***,the one-step integrated sintering process implements an ultra-low cathode/garnet interfacial resistance of 3.9Ωcm^(2)(100◦C)and a high cathode loading up to 2.02 mAh cm^(−2).Moreover,the Li_(3)BO_(3)reinforced LiCoO_(2)/LLZTO interface also effectively mitigates the strain/stress of LiCoO_(2),which facilitates the achieving of superior cycling *** bulk-type Li|LLZTO|LiCoO_(2)-LLZTO full cell with areal capacity of 0.73 mAh cm^(−2)delivers capacity retention of 81.7%after 50 cycles at 100μA cm^(−2).Furthermore,we reveal that non-uniform Li plating/stripping leads to the formation of gaps and finally results in the separation of Li and LLZTO electrolyte during long-term cycling,which becomes the dominant capacity decay mechanism in high-capacity full *** work provides insight into the degradation of Li/SSE interface and a strategy to radically improve the electrochemical performance of garnet-based all-solid-state Li batteries.

关键词： garnet electrolyte all-solid-state battery high cathode loading interface evolution spark plasma sintering

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Nitrogen-doped graphene nanosheets as high efficient catalysts for oxygen reduction reaction

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Chinese Science Bulletin 2012年第22期57卷 3065-3070页

作者： CI SuQin wu yongmin ZOU JianPing TANG LongHua LUO ShengLian LI JingHong WEN ZhenHai Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control Nanchang Hangkong University Nanchang 330063 China Department of Chemistry Beijing Key Laboratory for Microanalytical Methods and Instrumentation Tsinghua University Beijing 100084 China

It is of great significance in exploring alternative catalysts to platinum (Pt)-based materials for oxygen reduction reaction (ORR),because this reaction is invariably involved in various fuel cells and metal-air *** herein reported the nitrogen doped graphene nanosheets (NGNSs) with pore volume of as high as 3.42 m 3 /g and investigated their potential application as ORR catalysts,it was demonstrated the NGNSs featured high activity,improved kinetics and excellent long-term stability for *** NGNSs were successfully used as cathode catalysts of microbial fuel cells (MFCs) and performed even better than the commercial Pt/C (Pt 10%) catalysts at the maximum power output.

关键词： nitrogen doped graphene oxygen reduction reaction cathode catalysts microbial fuel cell

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Effect of Hub-Ratio on Performance of Asymmetric Dual-Rotor Small Axial Fan

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Open Journal of Fluid Dynamics 2013年第2期3卷 81-84页

作者： yongmin wu Yingzi Jin Yuzhen Jin Yanping Wang Li Zhang Faculty of Mechanical Engineering & Automation Zhejiang Sci-Tech University Hangzhou China

Currently, domestic and abroad scholars put more attention on contra-rotating dual-rotor axial fan. But there is less scholars study on asymmetric dual-rotor small axial fan, which is one of the contra-rotating dual-rotor axial fans. Like axial fan, many factors have influence on the performance of the asymmetric dual-rotor small axial flow fan, such as the wheel hub ratio, blade shape, blade number, stagger angle and the tip clearance. Because wheel hub ratio has great impact on the performance of the fan, we choose the size of wheel hub ratio as a variable factor to study the model change. There is a different wheel hub ratio between front stage impeller and rear stage of asymmetric dual-rotor small axial fan, so it is very beneficial to select the greater wind area that the fan area of external diameter minuses the area occupied by the blades and the hub as front stage impeller. In this paper, the hub-ratio of front stage impeller is 0.72, and that of rear stage is 0.72, 0.67 and 0.62 respectively along with the front stage impeller. Three kinds of models with different hub ratio of rear stage are simulated using the CFD software and the static characteristics are obtained. Based on the experimental test results, the internal flow field of the asymmetric dual-rotor small axial fan is analyzed in detail, the impact trends of different hub-ratio on the performance of asymmetric dual-rotor small axial fan are obtained and the argument of structure optimization for dual-rotor small axial fan is provided.

关键词： Asymmetric Dual-Rotor Axial Flow Fan Hub Ratio Numerical Simulation Internal Flow Field

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Composite solid electrolyte PEO/LLZTO/SN for solid state lithium batteries

Composite solid electrolyte PEO/LLZTO/SN for solid state lit...

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中国化学会第二十次全国电化学大会

作者： Tingfang Yan Lei Zhu yongmin wu Yi Zheng Weiping Tang State Key Laboratory of Space Power-Sources Technology Shanghai Institute of Space Power-Sources

Solid state lithium batteries with composite solid electrolyte （CSE） membranes are considered being potential candidates for safe lithium battery systems. In tremendous previous work, poly（ethylene oxide）（PEO）-based membranes were the most applicable ones for its high flexible properties. Unfortunately, the lower ionic conductivity and decomposition voltage of PEO-based CSEs limits its further application. In order to overcome this drawback,

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对我国保险人说明义务制度的反思和重构——兼评新《保险法》第17条

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浙江大学学报（人文社会科学版） 2010年第3期40卷 88-96页

作者：吴勇敏胡斌浙江大学光华法学院浙江杭州310008

我国保险人说明义务制度在实际适用的过程中屡屡被投保人滥用,成为投保人抗辩保险人合法利益的"万能事由"。在我国,该项制度的范畴仅指保险条款本身,其法理基础应是合同法对格式合同的规制原则。我国保险人说明义务制度需要重构,其基本... 详细信息

我国保险人说明义务制度在实际适用的过程中屡屡被投保人滥用,成为投保人抗辩保险人合法利益的"万能事由"。在我国,该项制度的范畴仅指保险条款本身,其法理基础应是合同法对格式合同的规制原则。我国保险人说明义务制度需要重构,其基本思路是:说明对象为除"法定免责条款"之外的"权利义务条款"和"准权利义务条款";说明方式原则上为"口头和书面","约定免责条款"例外;说明标准在"主动说明"时为"一般理性人理解",而在"被动说明"时为"投保人理解";法律后果则为"该条款不订入保险合同"。新《保险法》第17条仍需要修正,在说明对象上应排除"法定免责条款",在说明方式上应增加对"被动说明"的法律规制,在法律后果上则应采用"不订入合同"规则。

关键词：保险人说明义务重构说明对象说明方式说明标准法律后果

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互联网金融演化的动力——基于技术与金融的协同演化视角

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经济与管理研究 2016年第3期37卷 46-53页

作者：吴勇民王倩吉林大学管理学院吉林大学经济学院

技术与金融的协同演化机制是推动互联网金融演化的动力,本文通过构建一个产业协同演化的Logitstic模型,对技术与金融的协同演化机制进行实证分析。结论表明,信息与通信技术(ICT)产业技术与现代金融产业部门的有机耦合和协同发展,推动中... 详细信息

技术与金融的协同演化机制是推动互联网金融演化的动力,本文通过构建一个产业协同演化的Logitstic模型,对技术与金融的协同演化机制进行实证分析。结论表明,信息与通信技术(ICT)产业技术与现代金融产业部门的有机耦合和协同发展,推动中国互联网金融模式在产业层面上的"涌现",并且二者在协同演化进程中,由于中国金融产业部门在ICT产业技术领域的功能弱化导致二者"能量"交换不均衡的"非对称互惠"效应。因此,合理引导金融资源流向互联网、移动通信技术等现代电子信息技术的创新领域是互联网金融良性和可持续发展的政策取向。

关键词：互联网金融技术金融协同演化

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科技创新促进经济增长的微观机理与政策选择

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经济社会体制比较 2007年第5期 40-46页

作者：纪玉山吴勇民吉林大学中国国有经济研究中心吉林大学物流学院

科技创新与一国的经济增长有着密切的联系。本文分析了科技创新促进经济增长的微观传导机制,进而对日本与中国经济持续增长阶段的科技创新进行了比较分析。结论表明,科技创新为日本经济的高速增长注入了持续的动力,而我国则由于自主创... 详细信息

科技创新与一国的经济增长有着密切的联系。本文分析了科技创新促进经济增长的微观传导机制,进而对日本与中国经济持续增长阶段的科技创新进行了比较分析。结论表明,科技创新为日本经济的高速增长注入了持续的动力,而我国则由于自主创新能力的不足,导致科技创新的传导机制难以发挥,从而在宏观上表现出科技创新乘数极低。因此,进一步加大科技投入、积极扶持企业的自主创新、增强企业作为创新主体的协同优势、创造各种条件促使科技创新在全社会的扩散以及完善国家创新体系的建设便成了必然的政策选择。

关键词：科技创新经济增长科技创新乘数自主创新

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