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Modeling framework for multiphysics-multiscale behavior of Si–C composite anode

Journal Article · · Journal of Power Sources
 [1];  [2];  [1]
  1. Univ. of North Carolina, Charlotte, NC (United States); Univ. of North Carolina, Charlotte, NC (United States). Vehicle Energy & Safety Lab. (VESL), North Carolina Motorsports and Automotive Research Center
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
To achieve the urgent requirement for high energy density in lithium-ion batteries, Si-C composite anode has been spotlighted as one of the most promising alternatives for next-generation batteries. Additionally, a comprehensive computational model is indispensable in the developing process of the excellent performance of anode material due to the low-realizability, inconvenience, and high-cost of experiments. Herein, a simultaneous multiphysics-multiscale model aiming at the Si-C composite anode was developed. This model was then used to study the effects of Si percentage, mechanical constraint and charging rate in terms of electrochemical and mechanical performances. A better design to achieve high capacity was proposed based on the computational results. Results provide a powerful tool in the design, development, and evaluation of high energy density lithium-ion batteries.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1761407
Journal Information:
Journal of Power Sources, Journal Name: Journal of Power Sources Vol. 449; ISSN 0378-7753
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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