An Elastic-Viscoplastic Model for Lithium

2019/01/01 by Lallit Anand, Sooraj Narayan · 40 citations
Engineering · #Advanced Battery Materials and Technologies #Advanced Battery Technologies Research #Advancements in Battery Materials #Battery (electricity) #Composite material #Computer science #Constitutive equation #Deformation (meteorology) #Engineering #Finite element method #Lithium (medication) #Lithium metal #Materials science #Physics #Stress (linguistics) #Structural engineering #Subroutine #Tension (geology) #Thermodynamics #Ultimate tensile strength #Viscoplasticity

paper · doi:10.1149/2.0861906jes

published in Journal of The Electrochemical Society 166(6), A1092-A1095 (Institute of Physics)

openalex publication_date 2019/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

An essential ingredient in modeling the response of lithium in an all-solid-state lithium battery is a theory for the large deformation elastic-viscoplastic response of lithium. In this paper we report on a such a theory. The material parameters for the theory have been calibrated using stress-strain data from direct tension tests on polycrystalline lithium specimens reported recently in the literature. The theory has been implemented as a user-material-subroutine in a finite element program. This simulation capability should be useful in the design and development of lithium metal solid-state-batteries.

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• Thickness-Dependent Creep in Lithium Layers of All-Solid-State Batteries under Stack Pressures. [europepmc]

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