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Advancements and Challenges in Organic–Inorganic Composite Solid Electrolytes for All‑Solid‑State Lithium Batteries
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作者 Xueyan Zhang Shichao Cheng +4 位作者 Chuankai Fu Geping Yin Liguang Wang Yongmin Wu Hua Huo 《Nano-Micro Letters》 SCIE EI CAS 2025年第1期46-97,共52页
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 ... 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 alternative.Among 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 applications.However,OICSEs still face many challenges in practical applications,such as low ionic conductivity and poor interfacial stability,which severely limit their applications.This review provides a comprehensive overview of recent research advancements in OICSEs.Specifically,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 discussed.The lithium-ion conduction mechanism of OICSE is thoroughly analyzed and concluded from the microscopic perspective.Besides,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 OICSEs.Finally,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. 展开更多
关键词 Composite solid electrolytes Inorganic filler Interfacial stability Li-ion conduction mechanism Characterization techniques
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Evaluation of solid electrolytes: Development of conventional and interdisciplinary approaches 被引量:1
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作者 Muhammad Khurram Tufail Pengbo Zhai +3 位作者 Waquar Khokar Mengyang Jia Ning Zhao Xiangxin Guo 《Interdisciplinary Materials》 2023年第4期529-568,共40页
Solid-state lithium batteries(SSLBs)have received considerable attention due to their advantages in thermal stability,energy density,and safety.Solid electrolyte(SE)is a key component in developing high-performance SS... Solid-state lithium batteries(SSLBs)have received considerable attention due to their advantages in thermal stability,energy density,and safety.Solid electrolyte(SE)is a key component in developing high-performance SSLBs.An in-depth understanding of the intrinsic bulk and interfacial properties is imperative to achieve SEs with competitive performance.This review first introduces the traditional electrochemical approaches to evaluating the fundamental parameters of SEs,including the ionic and electronic conductivities,activation barrier,electrochemical stability,and diffusion coefficient.After that,the characterization techniques to evaluate the structural and chemical stability of SEs are reviewed.Further,emerging interdisciplinary visualization techniques for SEs and interfaces are highlighted,including synchrotron X-ray tomography,ultrasonic scanning imaging,time-of-flight secondary-ion mass spectrometry,and three-dimensional stress mapping,which improve the understanding of electrochemical performance and failure mechanisms.In addition,the application of machine learning to accelerate the screening and development of novel SEs is introduced.This review article aims to provide an overview of advanced characterization from a broad physical chemistry view,inspiring innovative and interdisciplinary studies in solid-state batteries. 展开更多
关键词 advanced characterization interdisciplinary techniques machine learning solid electrolytes solid-state batteries
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Electrochemical Performance of Solid Polymer Electrolyte PEO_(20)-LiTf-Urea_(1.5)
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作者 ZHANG Ding YAN Hui ZHANG Huan Q1 Lu 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2011年第3期478-481,共4页
A new solid polymer electrolyte PEO20-LiTf-Urea1.5 was prepared by solution casting technique. The energy of frontier orbitals for the components of the electrolyte was predicted by quantum chemistry calculations, and... A new solid polymer electrolyte PEO20-LiTf-Urea1.5 was prepared by solution casting technique. The energy of frontier orbitals for the components of the electrolyte was predicted by quantum chemistry calculations, and TG stability and electrochemical features were measured. Urea exhibited a lower HOMO energy than PEO, implying its enhanced stability against electrochemical oxidation. Experimentally addition of urea increases the ionic conductivity, which guarantees conductivity requirement for lithium ion batteries. It also results in significant improved electrochemical stability with good thermal stability. Favorable lithium stripping/plating performance is yielded, and it confirms the good stability of the solid electrolyte interphase for the PEO20-LiTf-Urea1.5 system. 展开更多
关键词 solid polymer electrolyte UREA Solution-casting technique
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Mg2+-ion Conducting Polymer Electrolytes: Materials Characterization and All-Solid-State Battery Performance Studies
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作者 Rakesh Chandra Agrawal Dinesh Kumar Sahu 《Journal of Physical Science and Application》 2013年第1期9-17,共9页
For All-Solid-State battery applications, Mg2+-ion conducting polymer electrolytes and Mg-metal electrode are currently considered as alternate choices in place of Li+-ion conducting polymer electrolytes/Li-metal el... For All-Solid-State battery applications, Mg2+-ion conducting polymer electrolytes and Mg-metal electrode are currently considered as alternate choices in place of Li+-ion conducting polymer electrolytes/Li-metal electrode. Present paper reports fabrication of All-Solid-State battery based on the following Mg2+-ion conducting nano composite polymer electrolyte (NCPE) films: [85PEO: 15Mg(C104)2] + 5% TiO2 (〈 100 nm), [85PEO: 15Mg(CIO4)2] + 3% SiO2(-8 nm). [85PEO: 15Mg(CIO4)2] + 3% MgO (〈 100 nm), [85PEO:15Mg(C1O4)2] + 3% MgO (-44 μm). NCPE films were prepared by hot-press technique. Solid Polymer Electrolyte (SPE) composition: [85PEO: 15Mg(CIO4)2], identified as high conducting film at room temperature, has been used as ISt--phase host and nano/micro particles of active (MgO)/passive (SiO2, TiO2) fillers as IInd-phase dispersoid. Filler particle dependent conductivity studies identified above mentioned NCPE films as optimum conducting composition (OCC) at room temperature. Ion transport behavior of SPE/NCPE film materials was investigated previously. Present paper reports materials characterization and cell performance studies on All-Solid-State batteries: Mg (Anode) Ⅱ SPE or NCPE films tt C+MnO2+Electrolyte (Cathode). Open circuit voltage (OCV) obtained was in the range: 1.79-1.92 V. The batteries were discharged at room temperature under different load conditions and some important battery parameters have been evaluated from plateau region of cell-potential discharge profiles. All the batteries performed quite satisfactorily specially under low current drain states. 展开更多
关键词 solid polymer electrolyte (SPE) nano composite polymer electrolyte (NCPE) hot-press technique all-solid-state batteries.
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Poly(Acrylamide-Co-Acrylic Acid)-Zinc Acetate Polymer Electrolytes: Studies Based on Structural and Morphology and Electrical Spectroscopy
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作者 Mohd Faiz Hassan Siti Zulaikha Mohd Yusof 《Microscopy Research》 2014年第2期30-38,共9页
Solid polymer electrolytes (SPEs) of polyacrylamide-co-acrylic acid (PAA) as the polymer host and zinc acetate (ZnA) as an ionic dopant were prepared using a single solvent by the solution casting technique. The amorp... Solid polymer electrolytes (SPEs) of polyacrylamide-co-acrylic acid (PAA) as the polymer host and zinc acetate (ZnA) as an ionic dopant were prepared using a single solvent by the solution casting technique. The amorphous and crystalline structures of film were investigated by X-ray diffraction (XRD). The surface morphology of samples was examined by scanning electron microscopy (SEM). The composition and complex formation of films were characterized by Fourier transform infrared (FTIR) spectroscopy. The conductivity of the PAA-ZnA films was determined by electrochemical impedance spectroscopy. According to the XRD and FTIR analyses, all electrolyte films were in amorphous state and the existence of interaction between Zn2+ cations and the PAA structure confirms that the film was successfully prepared. The SEM observations reveal that the electrolyte films appeared to be rough and flat with irregularly shaped surfaces. The highest ionic conductivity (σ) of 1.82 × 10-5 Scm-1 was achieved at room temperature (303 K) for the sample containing 10 wt % ZnA. 展开更多
关键词 Solution Cast technique solid Polymer electrolyte Poly(Acrylamide-Co-Acrylic Acid) Zinc ACETATE Ionic Conductivity Impedance SPECTROSCOPY Fourier Infrared SPECTROSCOPY Scanning Electron Microscopy
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SYNTHESIS, CHARACTERIZATION AND ION TRANSPORT PROPERTIES OF HOT-PRESSED SOLID POLYMER ELECTROLYTES (1-x) PEO:x KI 被引量:3
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作者 Angesh Chandra Archana Chandra K. Thakur 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2013年第2期302-308,共7页
Synthesis and ion transport properties of hot-pressed solid polymer electrolytes (SPEs), (l-x) PEO: x KI, where x is the content of KI in wt%, are reported. A hot-press technique has been used for the formation o... Synthesis and ion transport properties of hot-pressed solid polymer electrolytes (SPEs), (l-x) PEO: x KI, where x is the content of KI in wt%, are reported. A hot-press technique has been used for the formation of the polymeric membranes in place of the usual solution cast method. The composition (80 PEO:20 KI) was identified as the highest conducting polymer electrolyte on the basis of compositional dependent conductivity studies of PEO:KI films. A conductivity enhancement of more than two orders of magnitude from that of the pure PEO was achieved. Materials characterization and ion transport mechanism were explained by using various experimental techniques. 展开更多
关键词 solid polymer electrolyte Hot-press technique Ionic conductivity Ionic mobility XRD Polymeric battery.
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Research of processing techniques used in fabrication of solid oxide fuel cells and study of their selected properties
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作者 刘江 吕喆 +7 位作者 刘巍 裴力 赵昕 贾莉 宋彦彬 刘晓梅 何岚鹰 苏文辉 《Science China Mathematics》 SCIE 1998年第5期521-526,共6页
The processing techniques used in the fabrication of solid oxide fuel cells (SOFC) were studied. A fast, simple and convenient method of studying and fabricating SOFC was found. The properties of the single cell and t... The processing techniques used in the fabrication of solid oxide fuel cells (SOFC) were studied. A fast, simple and convenient method of studying and fabricating SOFC was found. The properties of the single cell and the series stack of the SOFC were measured and studied. The maximum open voltage and short current density of the single cell are 1 18V and 360 mA/cm\+2,respectively. And the maximum open voltage and short current density of the series stack of 7 cells are 7.30 and 400 mA/cm\+2 respectively and the output power is about 2.0 W. Some simple applications were tried by using the SOFC series stack. 展开更多
关键词 solid oxide electrolyte fuel CELL FABRICATION technique single CELL SOFC series stack.
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CeO_2基固体电解质材料研究进展 被引量:3
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作者 孙明涛 孙俊才 季世军 《稀土》 EI CAS CSCD 北大核心 2006年第4期78-82,共5页
稀土或碱土氧化物掺杂铈基电解质在中低温下具有高的离子电导率,被认为是一种很有前途的电解质材料。本文主要对各种掺杂铈基电解质材料研究及在固体氧化物中的应用进行了综述。对掺杂铈基电解质的制备方法进行简单介绍。
关键词 固体氧化物燃料电池 电解质 掺杂CeO2 制备方法
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高温高压下氧逸度的就位测量与控制 被引量:2
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作者 李和平 谢鸿森 +3 位作者 郭捷 张月明 许祖鸣 徐济安 《高压物理学报》 EI CAS CSCD 北大核心 1998年第2期97-102,共6页
通过在样品与氧库间置入一固体氧离子导体以及在样品与氧库间外加一直流电压,氧在该电压驱动下可独立于温度、压力自样品中就位抽出或灌入样品;通过在样品腔内置入一氧传感器,样品中氧逸度及其变化可得到就位监测。高温高压下样品中... 通过在样品与氧库间置入一固体氧离子导体以及在样品与氧库间外加一直流电压,氧在该电压驱动下可独立于温度、压力自样品中就位抽出或灌入样品;通过在样品腔内置入一氧传感器,样品中氧逸度及其变化可得到就位监测。高温高压下样品中氧逸度由此可独立于温度、压力进行就位控制。以镍氧体系作为样品的实验表明,该方法非常成功。无疑,该方法对日后的高压实验研究具有重要的意义。 展开更多
关键词 氧逸度就位控制 镍-氧体系 高温 高压
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导电聚苯胺在铝电解电容器中的应用 被引量:1
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作者 刘霖 宋晔 朱绪飞 《电子元件与材料》 CAS CSCD 北大核心 2003年第10期1-3,6,共4页
导电高分子在电子元件中的应用十分广泛。比较了几种用于铝电解电容器中的固体电解质:二氧化锰、TCNQ、聚吡咯、聚苯胺,其中聚吡咯、聚苯胺的性能优势明显,尤其是聚苯胺的电导率和热稳定性最好。介绍了聚苯胺结构特征、合成方法以及聚... 导电高分子在电子元件中的应用十分广泛。比较了几种用于铝电解电容器中的固体电解质:二氧化锰、TCNQ、聚吡咯、聚苯胺,其中聚吡咯、聚苯胺的性能优势明显,尤其是聚苯胺的电导率和热稳定性最好。介绍了聚苯胺结构特征、合成方法以及聚苯胺铝电解电容器的制造方法和性能,展望了聚苯胺的应用前景。 展开更多
关键词 导电高分子 聚苯胺 溶解性 铝固体电解电容器 制造工艺
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聚酯及其电解质的热稳定性
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作者 黄发荣 王雪秋 李世(王普) 《华东化工学院学报》 CSCD 1992年第3期306-312,共7页
以酯交换反应合成了聚丁二酸酯系列,与高氯酸锂制成固体电解质。通过对聚酯及其电解质的热失重分析,将其热分解进行了动力学处理,结果表明这一系列聚酯分解温度相近,与链节单元长度无关;聚酯电解质的热稳定性比聚酯差,且随无机盐含量提... 以酯交换反应合成了聚丁二酸酯系列,与高氯酸锂制成固体电解质。通过对聚酯及其电解质的热失重分析,将其热分解进行了动力学处理,结果表明这一系列聚酯分解温度相近,与链节单元长度无关;聚酯电解质的热稳定性比聚酯差,且随无机盐含量提高而降低。利用色-质谱联用技术,剖析了聚酯及其固体电解质的分解产物,提出了它们各自的分解机理。 展开更多
关键词 热降解 聚酯 固体电解质
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固态聚合物锂电池失效机制及其表征技术 被引量:6
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作者 孙兴伟 王龙龙 +3 位作者 姜丰 马君 周新红 崔光磊 《储能科学与技术》 CAS CSCD 2019年第6期1024-1032,共9页
固态聚合物锂电池具有高能量密度和高安全性的优点,有望解决新能源汽车的续航里程焦虑和安全问题。但是,现有的固态聚合物锂电池存在容量衰减快、过充、产气、内短路、日历失效等电池失效问题。而且,由于聚合物电解质不耐辐照,其较强的... 固态聚合物锂电池具有高能量密度和高安全性的优点,有望解决新能源汽车的续航里程焦虑和安全问题。但是,现有的固态聚合物锂电池存在容量衰减快、过充、产气、内短路、日历失效等电池失效问题。而且,由于聚合物电解质不耐辐照,其较强的界面黏附性使得电极/电解质界面难以剥离,导致缺乏合适的表征技术深入研究固态聚合物锂电池的失效机制,这极大的限制了科学家对电池失效机制的深入理解,制约了电池失效解决方案的发展。因此,本文从锂枝晶生长、正极结构演变与机械失效、界面微结构演变和界面反应、聚合物电解质结构变化的角度出发,回顾了固态聚合物锂电池失效机制及其表征技术的研究进展,阐述了固态聚合物锂电池失效机制的研究思路。 展开更多
关键词 固态锂电池 聚合物电解质 界面 失效机制 表征技术
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硫化物固态电解质材料界面及其表征的研究进展 被引量:18
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作者 张桥保 龚正良 杨勇 《物理学报》 SCIE EI CAS CSCD 北大核心 2020年第22期153-180,共28页
发展高能量密度和高安全性的全固态锂电池技术对于推动我国锂电池产业技术的更新换代,强化我国在这一领域的技术优势具有重要的现实意义.固态电解质是全固态锂电池的核心组成部分,其中硫化物固态电解质因其高的离子电导率、较好的机械... 发展高能量密度和高安全性的全固态锂电池技术对于推动我国锂电池产业技术的更新换代,强化我国在这一领域的技术优势具有重要的现实意义.固态电解质是全固态锂电池的核心组成部分,其中硫化物固态电解质因其高的离子电导率、较好的机械延展性以及与电极良好的界面接触等优点,被认为是最具商业化潜力的固态电解质之一.然而其空气稳定性较差,与电极接触的界面存在界面副反应、锂枝晶生长及界面机械失效等缺点,严重制约了其在高能量密度全固态锂电池中的应用.本文首先综述硫化物固态电解质空气稳定性的研究方法及其退化机制、提高材料空气稳定性的策略与方法;其次对其与正负极界面的相容性、稳定性及其解决策略进行了总结与分析;最后总结归纳近年来电极/硫化物固态电解质界面的原位表征技术的研究进展,并展望了未来硫化物固态电解质材料界面的研究重点和发展方向. 展开更多
关键词 固态电池 硫化物固态电解质 空气稳定性 电极/电解质界面 原位表征技术
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中温固体氧化物燃料电池电解质材料及其制备工艺的研究发展趋势 被引量:11
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作者 史可顺 《硅酸盐学报》 EI CAS CSCD 北大核心 2008年第11期1676-1688,共13页
综合介绍了中温固体氧化物燃料电池(solid oxide fuel cells,SOFCs)的电解质材料以及薄膜的制备工艺。中温SOFCs的工作温度应低于800℃,甚至低于750℃,为600~800℃。固体氧化物电解质的晶体结构基本上属于下列两类:面心立方的萤石型和... 综合介绍了中温固体氧化物燃料电池(solid oxide fuel cells,SOFCs)的电解质材料以及薄膜的制备工艺。中温SOFCs的工作温度应低于800℃,甚至低于750℃,为600~800℃。固体氧化物电解质的晶体结构基本上属于下列两类:面心立方的萤石型和立方型钙钛矿晶体结构。稳定ZrO2是萤石型结构电解质的一个典型代表。8%(摩尔分数,下同)氧化钇稳定氧化锆(8% in mole Y2O3 stabilized ZrO2,8YSZ),其在1000℃左右才有可观的离子电导率(0.1S/cm)。在800℃,氧化钪掺杂氧化锆(Zr0.9Sc0.1O1.95,scandia doped zirconia,SSZ)的电导率(0.1S/cm)比Zr0.9Y0.1O1.95(10YSZ)的(0.03S/cm)高得多。Sm掺杂的CeO2(samarium doped ceria,CSO)电解质有希望应用于中温SOFCs。Sr和Mg掺杂LaGaO3(LSGM)氧离子导体已成为中低温SOFCs重要候选电解质材料。改进氧化锆基电解质的电导性能的另一个途径是薄膜化。厚度小于10μm的YSZ基SOFCs,在800℃,0.8V时的功率密度可达800mW/cm2。薄膜比厚膜能提供更好的化学均匀性和更易控制成分。SOFCs要求精细和尺度小时,通常选择薄膜;而低成本和大尺寸时,通常选择厚膜。成本较低的膜成型工艺有等离子喷涂、胶态成型工艺、流延成型、冷冻干燥成型、丝网印刷和真空泥浆浇注等。 展开更多
关键词 中温固体氧化物燃料电池 电解质材料 薄膜制备工艺
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钠离子硫化物固态电解质研究进展 被引量:2
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作者 贾曼曼 张隆 《储能科学与技术》 CAS CSCD 2020年第5期1266-1283,共18页
全固态钠离子电池由正极、固态电解质和负极三部分组成,固态电解质作为导通离子隔绝电子的核心部件,既需要高的离子电导率,又要求良好的电解质-电极的固固接触和界面稳定性以维持有效的离子传输。硫化物电解质因具有众多优势而备受关注... 全固态钠离子电池由正极、固态电解质和负极三部分组成,固态电解质作为导通离子隔绝电子的核心部件,既需要高的离子电导率,又要求良好的电解质-电极的固固接触和界面稳定性以维持有效的离子传输。硫化物电解质因具有众多优势而备受关注。近年来,在提高其离子电导率方面已取得较大进展,在对其化学稳定性、与电极材料的界面稳定性等方面研究还在不断深入。本文通过对近期相关文献的梳理,讨论了目前钠离子硫化物无机固态电解质的发展概况,分别对硫化物电解质的制备工艺、结构以及电导率做了系统评述,着重介绍了机械化学合成、固相烧结以及化学液相合成的方法,系统分析了基于Na3PS4和Na3SbS4的三元硫化物及基于Na11Sn2PS12和Na11Sn2SbS12的四元硫化物的成分设计策略,重点总结了阴离子和阳离子掺杂所导致的钠离子空位/间隙、离子结合能、晶格软化、钠离子分布、结构对称性等变化对优化离子输运的作用机制。同时,总结了基于硫化物电解质的全固态钠电池界面特性的研究进展,主要分析了正极-电解质固固接触的改善策略和金属负极-电解质界面失效机理和稳定性提升措施,表明解决界面问题的紧迫性。最后,展望了钠离子硫化物电解质下一步可能的发展方向。 展开更多
关键词 硫化物电解质 全固态钠电池 制备工艺 离子电导率 界面
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活塞圆筒和多面砧高压装置中常用的氧逸度控制和原位监测方法
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作者 赵乘乘 张宝华 阮小敏 《地质学报》 EI CAS CSCD 北大核心 2022年第12期4340-4348,共9页
氧逸度是定量表示一个体系氧化还原能力的指标,反映了体系中氧气的分压或者逃逸能力。在地球科学中,它反映了岩石和矿物中变价元素的氧化还原状态,指示了不同岩石矿物氧化性/还原性的相对强弱。相同岩石矿物不同氧逸度可以导致其物理化... 氧逸度是定量表示一个体系氧化还原能力的指标,反映了体系中氧气的分压或者逃逸能力。在地球科学中,它反映了岩石和矿物中变价元素的氧化还原状态,指示了不同岩石矿物氧化性/还原性的相对强弱。相同岩石矿物不同氧逸度可以导致其物理化学性质发生大的改变,因此在实验地球科学中准确控制并监测高温高压实验条件下的氧逸度具有非常重要的意义。本文从实验技术角度出发,首先介绍了活塞圆筒和多面砧高压装置中利用双胶囊技术在不含水和含水体系中控制氧逸度的方法、原理、装置和注意事项;接着描述了用过渡金属合金固溶体和惰性金属合金作为氧传感器原位测量氧逸度的原理、注意事项和地质应用,然后展示了氧离子固体电解质法控制和监测氧逸度的原理、装置和局限,提出了可能的改进方法。目前由于技术限制,氧逸度在高压实验中的控制和监测方法还不成熟,导致其对矿物和岩石物理化学性质的影响极可能被低估甚至错估。因此积极研究发展并推动高压下氧逸度的控制和监测技术非常重要且必要。 展开更多
关键词 活塞圆筒 多面砧高压装置 氧逸度控制和监测 双胶囊技术 氧传感器 固体氧电解质
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离子聚合原位固态化构建高安全锂电池固态聚合物电解质的研究进展 被引量:5
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作者 苑志祥 张浩 +3 位作者 胡思伽 张波涛 张建军 崔光磊 《化学学报》 SCIE CAS CSCD 北大核心 2023年第8期1064-1080,共17页
锂离子电池已经广泛应用于电动汽车、移动智能设备、大规模储能等国民经济的诸多方面,并逐步向深海、深空、深地、单兵作战装备等特种应用领域进军.然而采用传统碳酸酯液态电解液的锂电池普遍存在易泄露、易燃烧、易爆炸等潜在安全隐患... 锂离子电池已经广泛应用于电动汽车、移动智能设备、大规模储能等国民经济的诸多方面,并逐步向深海、深空、深地、单兵作战装备等特种应用领域进军.然而采用传统碳酸酯液态电解液的锂电池普遍存在易泄露、易燃烧、易爆炸等潜在安全隐患,因此亟待开发高安全的固态电解质.固态聚合物电解质因其优越的机械韧性,以及可以有效兼容现有锂电池生产工艺等优点而受到极大关注.具体到制备工艺方面,溶液铸膜法等非原位技术制备的固态聚合物电解质因其与正负极之间存在不良固/固接触,导致产生较高的界面阻抗进而恶化电池性能;相比较而言,采用原位固态化制备技术,则有利于液态前驱体充分润湿正负极进而保证良好的界面稳定性和高效离子传输.然而,目前大多数原位固态化技术是自由基热聚合需要加入额外引发剂且需要高温等苛刻条件;而离子聚合则具有巨大优势,其可以在室温条件下以锂盐或锂金属等作为引发剂进而有效避免杂质引入.截至目前离子聚合原位固态化构建高安全锂电池固态聚合物电解质已取得相当大的研究进展,因此本文从阳离子聚合和阴离子聚合两方面对原位固态化构建的固态聚合物电解质进行系统阐述,并在文末对离子聚合原位固态化策略构建高安全锂电池固态聚合物电解质所存在的挑战和未来发展趋势进行了详细论述. 展开更多
关键词 离子聚合 原位固态化技术 固态聚合物电解质 高安全锂电池 界面稳定性
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THREE-ELECTRODE HIGH-TEMPERATURE OXYGEN SENSOR
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作者 陈霭璠 罗瑞贤 CHUNG-CHIUNLIU 《Science China Mathematics》 SCIE 1991年第2期240-245,共6页
Using micro-electronic techniques, a high-temperature oxygen sensor with three electrodesis designed. Yttrium-doped stabilized zirconia is used to make the solid electrolyte and thesupporting substrate for the electro... Using micro-electronic techniques, a high-temperature oxygen sensor with three electrodesis designed. Yttrium-doped stabilized zirconia is used to make the solid electrolyte and thesupporting substrate for the electrodes. A gold resistance thermometer is installed on thesensor to directly monitor the temperature of gas. The platinum film is covered with aporous alumina coating, to reduce the flow effect on the sensor output and prolong thesensor’s life. Tests, conducted at 650-900℃ in the mixture of oxygen and nitrogen withthe spanning 0-32.7% oxygen concentration, indicate that the sensor is of higher sensitivity,better reproducibility and durability, fast response, but relatively large current outputs areachieved simultaneously. The sensor fabricated using photolithographic reduction and thick-film metallization techniques is conductive to substantial miniaturization. 展开更多
关键词 OXYGEN SENSOR solid electrolyte micro-electronic techniques.
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半固态锂金属电池的微纳结构与界面设计相关基础研究
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作者 沈泽宇 张魏栋 陆盈盈 《中国基础科学》 2020年第2期13-20,27,F0002,共10页
固态锂金属电池由于其高能量密度和固态电解质的高安全性,为下一代可充电能源存储提供了有前途的解决方案。然而,锂负极与固态电解质界面相容性差,导致锂金属枝晶状沉积和电化学-化学-机械不稳定。为了解决上述问题,国家重点研发计划项... 固态锂金属电池由于其高能量密度和固态电解质的高安全性,为下一代可充电能源存储提供了有前途的解决方案。然而,锂负极与固态电解质界面相容性差,导致锂金属枝晶状沉积和电化学-化学-机械不稳定。为了解决上述问题,国家重点研发计划项目"半固态锂金属电池的微纳结构与界面设计相关基础研究"提出在原子水平上解析固态电解质及界面结构,并理解界面反应规律。同时,在实际应用体系中,通过微纳结构与界面协同优化复合电极及系统设计,构建高性能、高安全半固态锂金属电池体系。本文简要介绍了在重点研发计划的支持下,项目研究团队近两年来在三维锂金属负极电极结构设计、固态电解质界面精细调控及固态电解质原子级表征方面取得的研究进展。 展开更多
关键词 半固态锂金属电池 三维复合电极 人工固态电解质界面 原子级表征技术
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