Analysis of Pouch Performance to Ensure Impact Safety of Lithium-Ion Battery

Sunggoo Yoo, Chonggi Hong, Kil To Chong and Namo Seul
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Sunggoo Yoo: Department of Electronic Engineering, Chonbuk National University, Jeonju 54896, Korea
Chonggi Hong: Cell Development team, Samsung SDI CO., LTD., Cheonan 31086, Korea
Kil To Chong: Advances Electronics & Information Research Center, Chonbuk National University, Jeonju 54896, Korea
Namo Seul: Kunsan National University, Gunsan 54150, Korea

Energies, 2019, vol. 12, issue 15, 1-10

Abstract: The use of mobile devices equipped with embedded batteries is increasing. These embedded batteries are generally lithium-ion batteries in the form of a pouch. However, if an impact is applied to the embedded battery, it can potentially lead to fire and explosion. In this study, we analyzed the safety of the battery, depending on the material and shape of the surrounding pouch. Through tensile strength assessment, an elongation measurement experiment, and impact evaluation, the elements that can improve safety were found. The analysis results confirmed that, as the tensile strength and elongation increased, the impact defect rate decreased. Applying these findings to battery manufacturing can help secure impact safety.

Keywords: lithium-ion battery; impact safety; pouch material; elongation; embedded battery (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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