Vehicle-2-Grid:
Conference
1 - 3 April 2025
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Further offers for the topic Battery technology

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HDT seminar programme

Ageing and post-mortem analyses of lithium-ion cells

Online seminar
VA25-00747
Participation fee: 665 €

To registration
Seminar language is German. Expensive batteries in vehicles and also in stationary applications should function for as long as possible, i.e. only lose a small amount of capacity. The service life of lithium-ion cells is limited by ageing mechanisms at the material level. These can be elucidated by cell openings and subsequent material characterisation (so-called post-mortem analyses).

Speakers

Dr. rer. nat. Thomas Waldmann
Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (ZSW), Ulm

Since 01/2018:
Team leader post-mortem analyses and ageing mechanisms, Centre for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW), Ulm

08/2011 to 12/2017:
Scientist / Project Manager, Centre for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW), Ulm

09/2007 to 08/2011:
PhD student, Institute for Surface Chemistry and Catalysis, University of Ulm

Agenda

Online seminar, 10:00 a.m. to 6:00 p.m.

  • Ageing and post-mortem analyses
    • Definition of general terms
    • Ageing effects at cell level
    • Typical cell designs (cylindrical, pouch, prismatic)
    • Post-mortem methodology (environmental conditions, loading condition/safety, cell opening, sample handling)
    • Methods of analysis (including SEM, EDX, ICP, XRD, GD-OES, CT, …)
    • Examples of cell openings
    • Ageing mechanisms on material and electrode level (SEI growth, Li plating, local Li deposition, gas evolution, particle fractures, material dissolution, …)
    • inhomogeneous ageing effects, heating behaviour of cells
    • Characterisation of the fast charging capability
    • Relationship between safety and ageing (dendrite formation, exothermic reactions, chemical intercalation of Li in graphite)
    • Overcharging and deep discharging
    • Electrical parameters influencing ageing
    • Influence of fast charging on ageing
    • Ways to improve battery life

Objective

The seminar provides an overview of the state of the art in the ageing of lithium-ion cells. Ways to improve battery life based on operating windows are explained, insights into post-mortem analyses are given.

Circle of participants

  • Interested parties, experts and managers from industry (R&D, quality assurance) as well as
  • Scientists and young academics (doctoral candidates, post-docs, students)