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Title: A study of lithium ion intercalation induced fracture of silicon particles used as anode material in Li-ion battery

Abstract

The fracture of Si particles due to internal stresses formed during the intercalation of lithium ions was described by means of thermal analogy model and brittle fracture damage parameter. The stresses were calculated following the diffusion equation and equations of elasticity with appropriate volumetric expansion term. The damage parameter takes into account triaxiality of the stress state and change in elasticity upon tension and compression, and represents the probability of fracture under given stress state, - an approach suitable for brittle materials. The results were compared with the acoustic emission data from the experiments on electrochemical cycling of Li ion half-cells with silicon electrodes. A good correlation between experiment and prediction was observed.

Authors:
 [1];  [1];  [2]
  1. ORNL
  2. University of Tennessee, Knoxville (UTK)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1020772
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 196; Journal Issue: 19; Journal ID: ISSN 0378-7753
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ACOUSTICS; ANODES; COMPRESSION; DIFFUSION EQUATIONS; ELASTICITY; ELECTRODES; FORECASTING; FRACTURES; LITHIUM IONS; PROBABILITY; SILICON; STRESSES

Citation Formats

Daniel, Claus, Kalnaus, Sergiy, and Rhodes, Kevin. A study of lithium ion intercalation induced fracture of silicon particles used as anode material in Li-ion battery. United States: N. p., 2011. Web.
Daniel, Claus, Kalnaus, Sergiy, & Rhodes, Kevin. A study of lithium ion intercalation induced fracture of silicon particles used as anode material in Li-ion battery. United States.
Daniel, Claus, Kalnaus, Sergiy, and Rhodes, Kevin. 2011. "A study of lithium ion intercalation induced fracture of silicon particles used as anode material in Li-ion battery". United States.
@article{osti_1020772,
title = {A study of lithium ion intercalation induced fracture of silicon particles used as anode material in Li-ion battery},
author = {Daniel, Claus and Kalnaus, Sergiy and Rhodes, Kevin},
abstractNote = {The fracture of Si particles due to internal stresses formed during the intercalation of lithium ions was described by means of thermal analogy model and brittle fracture damage parameter. The stresses were calculated following the diffusion equation and equations of elasticity with appropriate volumetric expansion term. The damage parameter takes into account triaxiality of the stress state and change in elasticity upon tension and compression, and represents the probability of fracture under given stress state, - an approach suitable for brittle materials. The results were compared with the acoustic emission data from the experiments on electrochemical cycling of Li ion half-cells with silicon electrodes. A good correlation between experiment and prediction was observed.},
doi = {},
url = {https://www.osti.gov/biblio/1020772}, journal = {Journal of Power Sources},
issn = {0378-7753},
number = 19,
volume = 196,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2011},
month = {Sat Jan 01 00:00:00 EST 2011}
}