Journal article
Diffusion-Induced Transient Stresses in Li-Battery Electrodes Imaged by Electrochemical Quartz Crystal Microbalance with Dissipation Monitoring and Environmental Scanning Electron Microscopy
ACS energy letters, v 4(8), pp 1907-1917
09 Aug 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Quick charging of Li-ion batteries is often accompanied by rapid expansion of composite battery electrodes, resulting in the appearance of transient stresses inside the electrodes’ bulk. Although predicted theoretically, they have never been tracked by direct in situ measurements. Herein, using multiharmonic electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D), acoustic images of strong transient deformations in LiFePO4 electrodes were obtained in the form of giant resonance frequency and resonance width shifts. The formation of cracks was verified by scanning electron microscopy. The effects of charging rate, stiffness of the polymeric binder, and solution concentration have been identified. The attractive feature of EQCM-D is its high sensitivity for selective probing of average mechanical characteristics of the operated electrodes, especially of the particle–binder interactions, directly linked to the electrode cycling performance. Using EQCM-D, an inexpensive, simple, and fast method of structural health monitoring for battery electrodes can be intelligently designed.
Metrics
Details
- Title
- Diffusion-Induced Transient Stresses in Li-Battery Electrodes Imaged by Electrochemical Quartz Crystal Microbalance with Dissipation Monitoring and Environmental Scanning Electron Microscopy
- Creators
- Netanel Shpigel - Department of ChemistryMikhael D Levi - Department of ChemistryXiaopeng ChengTianci CaoRui WuTyler S Mathis - Department of Materials Science and Engineering and A.J. Drexel Nanomaterials InstituteYuefei ZhangDoron Aurbach - Department of ChemistryYury Gogotsi - Department of Materials Science and Engineering and A.J. Drexel Nanomaterials Institute
- Publication Details
- ACS energy letters, v 4(8), pp 1907-1917
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000480672800015
- Scopus ID
- 2-s2.0-85070947613
- Other Identifier
- 991014969872104721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Electrochemistry
- Energy & Fuels
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology