电解质
材料科学
阳极
化学状态
同步加速器
电化学
X射线光电子能谱
锂(药物)
阴极
阴极保护
化学工程
薄膜
电池(电)
电极
纳米技术
光学
化学
医学
物理
物理化学
工程类
内分泌学
功率(物理)
量子力学
作者
Majid Kazemian Abyaneh,Matteo Amati,Luca Gregoratti,М. Кискинова,Benedetto Bozzini
出处
期刊:Batteries
[Multidisciplinary Digital Publishing Institute]
日期:2023-10-09
卷期号:9 (10): 506-506
被引量:1
标识
DOI:10.3390/batteries9100506
摘要
Solid-state batteries (SSB), characterized by solid-state electrolytes—in particular inorganic ones (ISSE)—are an ideal option for the safe implementation of metallic Li anodes. Even though SSBs with ISSEs have been extensively investigated over the last two decades, they still exhibit a series of technological drawbacks. In fact, mechano-chemical issues, mainly the stability of the electrolyte/anode interface, hinder their widespread application. The present investigation focusses on a thin-film LMO (Lithium-Manganese-Oxide)/LAGP (LiAlGe Phosphate)/Copper, anodeless Lithium-metal battery and explores the morphochemical evolution of the electrode/electrolyte interfaces with synchrotron-based Scanning Photoelectron Microscopy (SPEM) of intact pristine and cycled cells. Chemical images were acquired with submicrometer resolution, to highlight the coupled geometrical and chemical-state changes caused by electrochemical ageing. Geometrical changes of the electrolyte/cathode interface were induced by periodic volume changes, causing de-cohesion of the solid-solid contact, but no chemical-state changes accompany the cathodic damaging mode. Instead, shape changes of the electrolyte/anode region pinpoint the correlation between mechanical damaging with the decomposition of the LAGP ISSE, due to the reduction of Ge, triggered by the contact with elemental Li. The micro-spectroscopic approach adopted in this study enabled the assessment of the highly localized nature of the cathodic and anodic degradation modes in SSB devices and to single out the chemical and mechanical contributions.
科研通智能强力驱动
Strongly Powered by AbleSci AI