A Study on Long-Term Cycling Performance by External Pressure Change for Pouch-Type Lithium Metal Batteries

Lithium dendrite formation is one of the most significant problems with lithium metal batteries. The lithium dendrite reduces the lithium metal batteries' cycling life and safety. To apply consistent external pressure to a lithium metal pouch cell, we design a press jig in this study. External...

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Bibliographic Details
Published inJournal of electrochemical science and technology Vol. 15; no. 2; pp. 314 - 320
Main Authors Seong-Ju Sim, Bong-Soo Jin, Jun-Ho Park, Hyun-Soo Kim
Format Journal Article
LanguageKorean
Published 2024
Subjects
Lithium metal batteries
Long-term cycling
Pressure
Lithium dendrite
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Summary:Lithium dendrite formation is one of the most significant problems with lithium metal batteries. The lithium dendrite reduces the lithium metal batteries' cycling life and safety. To apply consistent external pressure to a lithium metal pouch cell, we design a press jig in this study. External pressure creates dense lithium morphology by preventing lithium dendrite formation. After 300 cycles at 1 C, the cells with the external pressure perform far better than the cells without it, with a cycling retention of 97.8%. The formation of stable lithium metal is made possible by external pressure, which also enhances safety and cyclability.
Bibliography:KISTI1.1003/JNL.JAKO202416343376292
ISSN:2093-8551
2288-9221