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Title: Novel Solid Electrolytes for Li-Ion Batteries: A Perspective from Electron Microscopy Studies

Abstract

Solid electrolytes can simultaneously overcome two of the most formidable challenges of Li-ion batteries: the severe safety issues and insufficient energy densities. However, before they can be implemented in actual batteries, the ionic conductivity needs to be improved and the interface with electrodes must be optimized. The prerequisite for addressing these issues is a thorough understanding of the material’s behavior at the microscopic and/or the atomic level. (Scanning) transmission electron microscopy is a powerful tool for this purpose, as it can reach an ultrahigh spatial resolution. Here, we review recent electron microscopy investigations on the ion transport behavior in solid electrolytes and their interfaces. Specifically, three aspects will be highlighted: the influence of grain interior atomic configuration on ionic conductivity, the contribution of grain boundaries, and the behavior of solid electrolyte/electrode interfaces. In conclusion, based on this, the perspectives for future research will be discussed.

Authors:
 [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1334430
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Frontiers in Energy Research
Additional Journal Information:
Journal Volume: 4; Journal Issue: 23; Journal ID: ISSN 2296-598X
Publisher:
Frontiers Research Foundation
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; lithium battery; solid electrolyte; electron microscopy; atomic resolution analysis; interface

Citation Formats

Ma, Cheng, and Chi, Miaofang. Novel Solid Electrolytes for Li-Ion Batteries: A Perspective from Electron Microscopy Studies. United States: N. p., 2016. Web. doi:10.3389/fenrg.2016.00023.
Ma, Cheng, & Chi, Miaofang. Novel Solid Electrolytes for Li-Ion Batteries: A Perspective from Electron Microscopy Studies. United States. doi:10.3389/fenrg.2016.00023.
Ma, Cheng, and Chi, Miaofang. Wed . "Novel Solid Electrolytes for Li-Ion Batteries: A Perspective from Electron Microscopy Studies". United States. doi:10.3389/fenrg.2016.00023. https://www.osti.gov/servlets/purl/1334430.
@article{osti_1334430,
title = {Novel Solid Electrolytes for Li-Ion Batteries: A Perspective from Electron Microscopy Studies},
author = {Ma, Cheng and Chi, Miaofang},
abstractNote = {Solid electrolytes can simultaneously overcome two of the most formidable challenges of Li-ion batteries: the severe safety issues and insufficient energy densities. However, before they can be implemented in actual batteries, the ionic conductivity needs to be improved and the interface with electrodes must be optimized. The prerequisite for addressing these issues is a thorough understanding of the material’s behavior at the microscopic and/or the atomic level. (Scanning) transmission electron microscopy is a powerful tool for this purpose, as it can reach an ultrahigh spatial resolution. Here, we review recent electron microscopy investigations on the ion transport behavior in solid electrolytes and their interfaces. Specifically, three aspects will be highlighted: the influence of grain interior atomic configuration on ionic conductivity, the contribution of grain boundaries, and the behavior of solid electrolyte/electrode interfaces. In conclusion, based on this, the perspectives for future research will be discussed.},
doi = {10.3389/fenrg.2016.00023},
journal = {Frontiers in Energy Research},
number = 23,
volume = 4,
place = {United States},
year = {2016},
month = {6}
}

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