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Solid–Electrolyte Interphase During Battery Cycling: Theory of Growth Regimes

von Kolzenberg, Lars and Latz, Arnulf and Horstmann, Birger (2020) Solid–Electrolyte Interphase During Battery Cycling: Theory of Growth Regimes. ChemSusChem, 13 (15), pp. 3901-3910. Wiley. doi: 10.1002/cssc.202000867. ISSN 1864-5631.

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Official URL: https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cssc.202000867

Abstract

The capacity fade of modern lithium ion batteries is mainly caused by the formation and growth of the solid–electrolyte interphase (SEI). Numerous continuum models support its understanding and mitigation by studying SEI growth during battery storage. However, only a few electrochemical models discuss SEI growth during battery operation. In this article, a continuum model is developed that consistently captures the influence of open‐circuit potential, current direction, current magnitude, and cycle number on the growth of the SEI. The model is based on the formation and diffusion of neutral lithium atoms, which carry electrons through the SEI. Recent short‐ and long‐term experiments provide validation for our model. SEI growth is limited by either reaction, diffusion, or migration. For the first time, the transition between these mechanisms is modelled. Thereby, an explanation is provided for the fading of capacity with time t of the form tβ with the scaling coefficent β, 0≤β≤1. Based on the model, critical operation conditions accelerating SEI growth are identified.

Item URL in elib:https://elib.dlr.de/139516/
Document Type:Article
Title:Solid–Electrolyte Interphase During Battery Cycling: Theory of Growth Regimes
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
von Kolzenberg, LarsLars.Kolzenberg (at) dlr.dehttps://orcid.org/0000-0003-0494-8176
Latz, ArnulfArnulf.Latz (at) dlr.dehttps://orcid.org/0000-0003-1449-8172
Horstmann, Birgerbirger.horstmann (at) dlr.dehttps://orcid.org/0000-0002-1500-0578
Date:18 May 2020
Journal or Publication Title:ChemSusChem
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI :10.1002/cssc.202000867
Page Range:pp. 3901-3910
Publisher:Wiley
ISSN:1864-5631
Status:Published
Keywords:batteries, capacity fading, lithium, solid-electrolyte interphase, continuum modeling
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Electrochemical Energy Storage
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Electrochemical Prcesses (Batteries) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Computational Electrochemistry
Deposited By: von Kolzenberg, Lars
Deposited On:16 Dec 2020 14:13
Last Modified:16 Dec 2020 14:13

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