Publication detail

Comprehensive Study of Rapid Capacity Fade in Prismatic Li-ion Cells with flexible packaging

STRAVOVÁ, Z. KLVAČ, O. BÁŇA, J. ANOTHUMAKKOOL, B. ZIKMUND, T. BLAŽEK, P. KAISER, J. KAZDA, T.

Original Title

Comprehensive Study of Rapid Capacity Fade in Prismatic Li-ion Cells with flexible packaging

Type

journal article in Web of Science

Language

English

Original Abstract

Prismatic lithium-ion batteries (LIBs) are considered promising electric energy sources in electromobility applications due to their efficient space utilization. However, their sensitivity to external and internal influences and reduced durability lead to inflation risk and potential explosions throughout their lifecycle. These critical processes are strongly influenced by the inner construction of the cell, especially concerning the coating and mechanical fixation. This study subjects a commercially available prismatic LIB cell to comprehensive, correlative analysis employing various imaging techniques. The inner structure of the entire cell is visualized non-destructively by X-ray computed tomography (CT), enabling the identification of critical design flaws prior to electrochemical cycling. Electrochemical cycling simulates the battery lifecycle, and the cell is subsequently disassembled in the fully charged state. The usage of the inert-gas transfer system allowed the preparation of Broad Ion Beam (BIB) electrodes cross-sections in a fully native state and for the first time to observe the tearing of graphite particles due to over-lithiation. Established region labeling system allowed to use CT and scanning electron microscopy (SEM) correlatively to identify critical regions. After 100 cycles, a 40% capacity loss was observed and event diagram describing deagradation mechanisms, related both to the cell design and to the processes occurring at high load, was created.

Keywords

Lithium-ion battery; prismatic cell; lithium plating; X-ray computed tomography; SEM

Authors

STRAVOVÁ, Z.; KLVAČ, O.; BÁŇA, J.; ANOTHUMAKKOOL, B.; ZIKMUND, T.; BLAŽEK, P.; KAISER, J.; KAZDA, T.

Released

18. 11. 2024

Publisher

Nature Research

ISBN

2045-2322

Periodical

Scientific Reports

Year of study

14

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

15

Pages count

15

URL

https://www.researchsquare.com/article/rs-4985329/v1

BibTex

@article{BUT191128,
  author="Zuzana {Stravová} and Ondřej {Klvač} and Jiří {Báňa} and Bihag {Anothumakkool} and Tomáš {Zikmund} and Pavel {Blažek} and Jozef {Kaiser} and Tomáš {Kazda}",
  title="Comprehensive Study of Rapid Capacity Fade in Prismatic Li-ion Cells with flexible packaging",
  journal="Scientific Reports",
  year="2024",
  volume="14",
  number="1",
  pages="15",
  doi="10.1038/s41598-024-77673-3",
  issn="2045-2322",
  url="https://www.researchsquare.com/article/rs-4985329/v1"
}