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In situ characterizations of solid-solid interfaces in solid-state batteries using synchrotron x-ray techniques

Carbon Energy 2021年第5期3卷 762-783页

作者： Marcos Lucero Shen Qiu Zhenxing Feng School of Chemical Biologicaland Environmental EngineeringOregon State UniversityCorvallisOregonUSA

The solid-solid electrode-electrolyte interface represents an important component in solid-state batteries(SSBs),as ionic diffusion,reaction,transformation,and restructuring could all take place.As these processes strongly influence the battery performance,studying the evolution of the solid-solid interfaces,particularly in situ during battery operation,can provide insights to establish the structure-property relationship for SSBs.synchrotron x-ray techniques,owing to their unique penetration power and diverse approaches,are suitable to investigate the buried interfaces and examine structural,compositional,and morphological changes.In this review,we will discuss various surface-sensitive synchrotron-based scattering,spectroscopy,and imaging methods for the in situ characterization of solid-solid interfaces and how this information can be correlated to the electrochemical properties of SSBs.The goal is to overview the advantages and disadvantages of each technique by highlighting representative examples,so that similar strategies can be applied by battery researchers and beyond to study similar solid-solid interface systems.

关键词： in situ characterizations solid-state battery solid-solid interface synchrotron x-ray

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An ultrafast front-end ASIC for APD array detectors in x-ray time-resolved experiments

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Chinese Physics C 2017年第6期41卷 134-141页

作者：周杨帆李秋菊刘鹏樊磊徐伟陶冶李贞杰 Beijing synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China

An ultrafast front-end ASIC chip has been developed for APD array detectors in x-ray time-resolved experiments. The chip has five channels： four complete channels and one test channel with an analog output. Each complete channel consists of a preamplifier, a voltage discriminator and an open-drain output driver. A prototype chip has been designed and fabricated using 0.13 μm CMOS technology with a chip size of 1.3 mm×1.9 mm. The electrical characterizations of the circuit demonstrate a very good intrinsic time resolution（rms） on the output pulse leading edge, with the test result better than 30 ps for high input signal charges（〉 75 fC） and better than 100 ps for low input signal charges（30-75 fC）, while keeping a low power consumption of 5 mW per complete channel.

关键词： time-resolved APD ASIC synchrotron x-ray

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Studies of mineral properties at mantle condition using Deformation multi-anvil apparatus

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Progress in Natural Science:Materials International 2009年第11期19卷 1467-1475页

作者： Li Li MPI,Department of Geosciences,Stony Brook University,Stony Brook,NY 11794,USA MPI Department of Geosciences Stony Brook University Stony Brook NY 11794 USA

This paper reports recent studies of the rheological and viscoelastic properties of minerals at mantle pressure and temperature using Deformation multi-anvil apparatus(D-DIA).Stress-strain-time relations were measured using synchrotron x-ray radiation to determine these properties.Rheological properties of San Carlos olivine were measured at pressure up to 10 GPa and indicated that the effect of pressure on the viscosity of olivine is much smaller than previous reported.The unique capability of synchrotron x-ray can resolve the stress heterogeneity within a polycrystalline material as well as within a multi-phase mixture and elucidate the stress-strain distribution in an aggregate.Anelasticity measurements were carried out using olivine as the sample at mantle pressure and temperatures.The results showed that grain boundary activity rather than pressure dominate the relaxation processes.The aim of this paper is to illustrate the methods using new tools for high pressure research.

关键词： High pressure synchrotron x-ray Multi-anvil Plasticity Anelasticity

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In-Situ Analyzing the Influence of Thermoelectromagnetic Convection on the Nucleation Ahead of the Advancing Interface During Directional Solidification

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Journal of Iron and Steel Research(International) 2012年第S1期19卷 381-385页

作者： WANG Jiang FAUTRELLE Yves REN Zhong-ming LI xi NGUYEN-THI Henri MANGELINCK-NOEL Nathalie SALLOUM ABOU JAOUDE Georges ZHONG Yun-bo KALDRE Imants BOJAREVICS Andris BULIGINS Leonid SIMAP/EPM-Madylam BP 75 ENSEEG38402 St-Martin d'HeresFrance Department of Material Science and Engineering Shanghai University Aix Marseille University Campus Saint-JeromeCase 14213397 Marseille Cedex 20France CNRS IM2NPCampus Saint-JeromeCase 14213397 Marseille Cedex 20 France University of Latvia/IPUL SalaspilsLatvia

Sn-3wt%Pb alloy was directionally solidified without and with a 0.08T transverse magnetic field(TMF),and real-time recorded by in-situ synchrotron x-ray imaging.Results indicate that TMF shortened the distance from the location of nucleation to the advancing interface,and accelerated the growth rate of the equiaxed crystal,which caused the columnar-to-equiaxed transition(CET)finally.The thermoelectromagnetic convection(TEMC)in front of the interface and around the crystal’s dendritic branch should respond to changes of the distance and the growth rate.

关键词： thermoelectromagnetic convection columnar-to-equiaxed transition synchrotron x-ray directional solidification

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