Flame‐Retardant Triboelectric Materials for Energy Harvesting and Emerging Applications

Abstract Fire accidents pose severe, global threats to lives and property safety. In extreme environments, equipment depending on conventional energy sources is highly susceptible to thermal failure, leading to catastrophic accidents. Self‐powered flame‐retardant triboelectric nanogenerators offer an innovative solution to ensure a safe energy supply in such scenarios. However, traditional triboelectric materials exhibit thermal instability at high temperatures, while flame‐retardant additives simultaneously suppress triboelectric output performance. This inherent conflict blocks synergistic optimization of flame retardancy and triboelectric performance. To resolve this conflict, this review systematically examines the development of flame‐retardant triboelectric materials, the flame‐retardant mechanism of gas phase and condensed phase, as well as structural design. Enhancement strategies targeting flame retardancy and triboelectric performance individually are then analyzed, followed by a focus on synergistic approaches. Furthermore, the emerging applications of flame‐retardant triboelectric nanogenerators are outlined, including energy harvesting, extreme environmental monitoring, and intelligent personnel protection. Finally, key challenges and future research directions are proposed, performance trade‐off, scalable production, and multivariate data processing, providing foundational frameworks for advancements in related fields.