SOC TAHMİNİNİN FONKSİYONEL GÜVENLİK ETKİSİ: GELİŞEN NA-İON İLE GELENEKSEL Lİ-İON BATARYALARIN KARŞILAŞTIRILMASI


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Menekşe M. D., Erhan K.

22TH INTERNATIONAL ISTANBUL SCIENTIFIC RESEARCH CONGRESS ON LIFE, ENGINEERING, ARCHITECTURE AND MATHEMATICAL SCIENCES, İstanbul, Türkiye, 20 - 22 Ağustos 2025, ss.671-677, (Tam Metin Bildiri)

Özet

The transition to electric vehicles represents a critical step toward achieving environmental sustainability goals. In this transformation, the safety, efficiency, and durability of energy storage systems play a decisive role. In particular, battery technologies directly influence various aspects of vehicle performance and safety. This study provides a comparative analysis of lithium-ion and sodium-ion battery types in terms of their technical structures, application scenarios, and safety risks. Within the scope of functional safety, risk analyses were conducted for both battery types; potential failure modes were evaluated, and corresponding hazard scenarios were developed. In accordance with the ISO 26262:2018 standard, Automotive Safety Integrity Levels (ASILs) were determined for each failure mode, and appropriate safety goals were defined. The findings indicate that although sodiumion systems exhibit lower energy density, they offer advantages in terms of thermal stability and material safety. Furthermore, methods developed for state-of-charge estimation were found to be critical for system reliability, range accuracy, and prevention of potential failures. Artificial intelligence-based next-generation prediction techniques were evaluated to provide more reliable results compared to conventional methods. Overall, the study demonstrates that sodium-ion batteries, when supported by appropriate control strategies, represent a strong alternative in applications where safety and economic efficiency are prioritized.