Unraveling the degradation mechanism of sodium iron hexacyanoferrate cathodes in sodium ion batteries
Junyi Dai, Jiahao Li, Fangxin Ling, Yu Yao, Yanru Wang, Mingze Ma, Jian Feng, Jun Xia, YinBo Zhu, Hai Yang, Xianhong Rui, HengAn Wu, Yan Yu
Abstract
Fe(CN) 6 4− vacancies in Prussian blue analog cathodes hinder Na + transport and trigger side reactions, causing capacity loss. High-quality PBA with fewer defects mitigates this, achieving 81.7% capacity retention over 900 cycles.
Topics & Concepts
SodiumCathodeDegradation (telecommunications)IonMechanism (biology)Inorganic chemistryChemistryMaterials scienceChemical engineeringMetallurgyPhysical chemistryOrganic chemistryElectrical engineeringEpistemologyEngineeringPhilosophyAdvancements in Battery Materials