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Title: In situ characterization of charge rate dependent stress and structure changes in V2O5 cathode prepared by atomic layer deposition

Abstract

Here, the insertion/extraction of lithium into/from various host materials is the basic process by which lithium-ion batteries reversible store charge. This process is generally accompanied by strain in the host material, inducing stress which can lead to capacity loss. Therefore, understanding of both the structural changes and the associated stress – investigated almost exclusively separate to date – is a critical factor for developing high-performance batteries. Here, we report an in situ method, which utilizes Raman spectroscopy in parallel with optical interferometry to study effects of varying charging rates (C-rates) on the structure and stress in a V2O5 thin film cathode. Abrupt stress changes at specific crystal phase transitions in the Li—V—O system are observed and the magnitude of the stress changes with the amount of lithium inserted into the electrode are correlated. A linear increase in the stress as a function of x in LixV2O5 is observed, indicating that C-rate does not directly contribute to larger intercalation stress. However, a more rapid increase in disorder within the LixV2O5 layers is correlated with higher C-rate. Ultimately, these experiments demonstrate how the simultaneous stress/Raman in situ approach can be utilized as a characterization platform for investigating various critical factors affecting lithium-ionmore » battery performance.« less

Authors:
 [1];  [2];  [3];  [1]
  1. Univ. of Maryland, College Park, MD (United States)
  2. Univ. of Maryland, College Park, MD (United States); The Johns Hopkins Univ., Laurel, MD (United States)
  3. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Nanostructures for Electrical Energy Storage (NEES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1343624
Alternate Identifier(s):
OSTI ID: 1410839
Report Number(s):
SAND-2017-0811J
Journal ID: ISSN 0378-7753; 650724
Grant/Contract Number:  
AC04-94AL85000; SC0001160; DESC0001160
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 340; Journal Issue: C; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; Lithium-ion battery; vanadium oxide; charge rates; in situ; Raman spectroscopy; stress

Citation Formats

Jung, Hyun, Gerasopoulos, Konstantinos, Talin, Albert Alec, and Ghodssi, Reza. In situ characterization of charge rate dependent stress and structure changes in V2O5 cathode prepared by atomic layer deposition. United States: N. p., 2016. Web. doi:10.1016/j.jpowsour.2016.11.035.
Jung, Hyun, Gerasopoulos, Konstantinos, Talin, Albert Alec, & Ghodssi, Reza. In situ characterization of charge rate dependent stress and structure changes in V2O5 cathode prepared by atomic layer deposition. United States. https://doi.org/10.1016/j.jpowsour.2016.11.035
Jung, Hyun, Gerasopoulos, Konstantinos, Talin, Albert Alec, and Ghodssi, Reza. 2016. "In situ characterization of charge rate dependent stress and structure changes in V2O5 cathode prepared by atomic layer deposition". United States. https://doi.org/10.1016/j.jpowsour.2016.11.035. https://www.osti.gov/servlets/purl/1343624.
@article{osti_1343624,
title = {In situ characterization of charge rate dependent stress and structure changes in V2O5 cathode prepared by atomic layer deposition},
author = {Jung, Hyun and Gerasopoulos, Konstantinos and Talin, Albert Alec and Ghodssi, Reza},
abstractNote = {Here, the insertion/extraction of lithium into/from various host materials is the basic process by which lithium-ion batteries reversible store charge. This process is generally accompanied by strain in the host material, inducing stress which can lead to capacity loss. Therefore, understanding of both the structural changes and the associated stress – investigated almost exclusively separate to date – is a critical factor for developing high-performance batteries. Here, we report an in situ method, which utilizes Raman spectroscopy in parallel with optical interferometry to study effects of varying charging rates (C-rates) on the structure and stress in a V2O5 thin film cathode. Abrupt stress changes at specific crystal phase transitions in the Li—V—O system are observed and the magnitude of the stress changes with the amount of lithium inserted into the electrode are correlated. A linear increase in the stress as a function of x in LixV2O5 is observed, indicating that C-rate does not directly contribute to larger intercalation stress. However, a more rapid increase in disorder within the LixV2O5 layers is correlated with higher C-rate. Ultimately, these experiments demonstrate how the simultaneous stress/Raman in situ approach can be utilized as a characterization platform for investigating various critical factors affecting lithium-ion battery performance.},
doi = {10.1016/j.jpowsour.2016.11.035},
url = {https://www.osti.gov/biblio/1343624}, journal = {Journal of Power Sources},
issn = {0378-7753},
number = C,
volume = 340,
place = {United States},
year = {Tue Nov 22 00:00:00 EST 2016},
month = {Tue Nov 22 00:00:00 EST 2016}
}

Journal Article:

Citation Metrics:
Cited by: 9 works
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Figures / Tables:

Figure 1 Figure 1: MEMS optical sensor geometry. (a) 3D schematic of MEMS optical sensor showing array of circular membranes. (b) Cross-section diagrams of a single membrane; shallow optical cavity at the top and deep battery cavity below.

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Works referencing / citing this record:

Interfacial Incompatibility and Internal Stresses in All‐Solid‐State Lithium Ion Batteries
journal, August 2019


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.