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Degradation Model for Lithium-Ion Batteries In Aerospace

Bolay, Linda and Schmitt, Tobias and Mendoza-Hernandez, Omar and Sone, Yoshitsugu and Latz, Arnulf and Horstmann, Birger (2020) Degradation Model for Lithium-Ion Batteries In Aerospace. Oxford Battery Modelling Symposium, 2020-03-16 - 2020-03-17, virtuell.

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Lithium-ion batteries are the technology of choice for a broad range of applications due to their performance and long-term stability. The performance and durability of lithium-ion batteries is heavily impacted by various degradation mechanisms. These include the growth of the solid-electrolyte interphase (SEI) and the deposition of metallic lithium on the surface of the negative electrode, referred to as lithium plating. Long-term SEI growth is the biggest contributor to capacity fade in lithium-ion batteries. Lithium plating, which occurs in low temperature or high current charging, can result in capacity fade or even thermal runaway. In our group we develop multiphysical models and perform simulations for various types of batteries. In order to describe the internal processes of Li-ion batteries, we derive thermodynamic consistent transport theories. Based on these, our group has developed models for long-term SEI growth and for lithium plating in 3D electrode microstructures. In this contribution we develop a model to describe the performance and lifetime of the batteries of inorbit satellite REIMEI developed by the Japan Aerospace Exploration Agency. We extend an existing model for SEI growth, which describes degradation during storage. This extended model is incorporated into the pseudo-two-dimensional (P2D) model. Our new degradation model applies to battery storage as well as to battery cycling. We simulate the degradation of batteries in one dimension as well as in micro-structure resolved three dimensional electrodes. To validate the model, we use experimental and in-flight data of the satellite’s batteries. We show inhomogeneities in the SEI thickness after cycling.

Item URL in elib:https://elib.dlr.de/136996/
Document Type:Conference or Workshop Item (Poster)
Title:Degradation Model for Lithium-Ion Batteries In Aerospace
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schmitt, TobiasUNSPECIFIEDhttps://orcid.org/0000-0003-4240-679XUNSPECIFIED
Horstmann, BirgerUNSPECIFIEDhttps://orcid.org/0000-0002-1500-0578UNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Li-ion battery, Satellite, REIMEI, Degradation, SEI
Event Title:Oxford Battery Modelling Symposium
Event Location:virtuell
Event Type:international Conference
Event Start Date:16 March 2020
Event End Date:17 March 2020
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):Proj Skalierbares Batteriesystem für Satelliten (old)
Location: Ulm
Institutes and Institutions:Institute of Engineering Thermodynamics > Computational Electrochemistry
Deposited By: Bolay, Linda
Deposited On:30 Oct 2020 11:10
Last Modified:24 Apr 2024 20:39

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