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In-situ and ex situ S/TEM probing of structural and chemical evolution of energy storage materials


EMSL Project ID
49128

Abstract

The main objective of our research is to develop and use a combination of imaging, spectroscopy, and tomography methods to probe into the structural and chemical evolution of energy storage materials with atomic spatial and fast temporal resolution to determine the structure-property relationship and its correlation with charge and ion transport in energy materials. In particular, these chemical imaging methods will explore the new chemistry and nanostructured materials (such as Li-S, Na, and Mg ion) for energy storage with high capacity, high power, longer cyclability, and safe operation. This goal will be accomplished by developing concerted multiscale chemical imaging methodologies based on ex situ and in situ transmission electron microscopy (TEM), STEM, DTEM, electron energy loss spectroscopy, energy-dispersed X-ray spectroscopy, scanning transmission X-ray microscopy, X-ray tomography, and nuclear magnetic resonance (NMR).

Project Details

Start Date
2015-10-14
End Date
2016-09-30
Status
Closed

Team

Principal Investigator

Chongmin Wang
Institution
Environmental Molecular Sciences Laboratory

Co-Investigator(s)

Langli Luo
Institution
Environmental Molecular Sciences Laboratory

Team Members

Pengfei Yan
Institution
Environmental Molecular Sciences Laboratory

Jun Li
Institution
Tsinghua University

Related Publications

Liu B, P Yan, W Xu, J Zheng, Y He, L Luo, ME Bowden, CM Wang, and J Zhang. 2016. "Electrochemically formed ultrafine metal oxide nanocatalysts for high performance lithium-oxygen batteries ." Nano Letters 16(8):4932-4939. doi:10. 1021/acs. nanolett. 6b01556