ORIGINAL RESEARCH article
Front. Batter. Electrochem.
Sec. Battery Performance
This article is part of the Research TopicReviews in Batteries and Electrochemistry Volume IIView all 3 articles
Fire-extinguishing current collector coated with melamine polyphosphate for lithium-ion batteries with high safety
Provisionally accepted
- 1Hanyang University, Seoul, Republic of Korea
- 2Samsung SDI Co Ltd, Yongin-si, Republic of Korea
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Safety concerns, particularly those related to fire and explosion, remain a critical limitation of lithium-ion batteries (LIBs). In this study, we propose an effective approach to enhancing the safety of lithium-ion batteries (LIBs) while minimizing the degradation of their electrochemical performance by employing an aluminum (Al) current collector coated with a melamine polyphosphate (MPP) layer exhibiting fire-extinguishing properties. The MPP layer, composed of MPP, polyvinylidene fluoride (PVdF), and carbon black, generates phosphorous radicals (∙PO and ∙HPO) derived from the thermal decomposition of MPP above 400 ℃, which enables fire-extinguishment by scavenging combustible OH and H radicals. The cathode prepared with MPP layer exhibits improved self-extinguishing time and comparable electrochemical performances in LIBs compared to those of the cathode prepared with pristine Al in optimized conditions based on the physicochemical properties of the MPP safety layer.
Keywords: Fire-extinguishing, Thermal stability, melamine polyphosphate, lithium-ion battery, High safety
Received: 30 Sep 2025; Accepted: 31 Oct 2025.
Copyright: © 2025 Myeong, Yoo, Park, Ha, Cho, Paik and Song. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Chae-Woong Cho, cw97.cho@samsung.com
Ungyu Paik, upaik@hanyang.ac.kr
Taeseup Song, tssong@hanyang.ac.kr
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