Current trends and recent strategies to overcome battery safety issues

초록

The demand for secondary batteries has significantly increased due to the growth of the electric vehicle and energy storage system industries. However, social concerns about the rise in battery-related fire incidents require safer battery systems. As lithium-ion batteries (LIBs) suffer from thermal runaway, systematic suppression methods are currently discussed. Although intensive efforts are ongoing to mitigate these risks, the continued reliance on flammable organic electrolytes fails to address the fundamental battery combustion. To overcome these limitations, flame-retardant electrolytes, all-solid-state batteries, and aqueous zinc-based batteries are considered as alternative safe battery systems. In this review, we provide a concise overview, challenges, and recent research trends for each battery system, aiding new researchers to understand the key concepts. Additionally, provided the perspectives of each system will offer a roadmap for advancing research in the development of safer secondary battery technologies. © 2025 The Korean Society of Industrial and Engineering Chemistry

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