Efficient and stable lithium storage of porous carbon fiber composite bimetallic sulfides (FeS-ZnS) anode
Wei Wang , Huichuan Tang , Joao Cunha , Maryam Karimi , Najeeb Lashari , Aqrab Ahmad , Hong Yin
Energy Materials ›› 2025, Vol. 5 ›› Issue (1) : 500008
Efficient and stable lithium storage of porous carbon fiber composite bimetallic sulfides (FeS-ZnS) anode
To enhance the utilization of lithium-ion battery anodes, it is crucial to improve both the lithium storage stability and kinetics of transition metal sulfides. This optimization is critical for the development of battery technologies that are more efficient, durable, and environmentally sustainable. In this study, a facile electrospinning technique followed by a thermal treatment was used to fabricate a bimetallic sulfide/porous carbon fiber composite (FeS-ZnS/PCFs). Its stability was largely improved due to the buffered ability derived from its porous structure. The presence of FeS-ZnS grain boundaries fosters the generation of extra redox active sites, ultimately boosting the kinetics of lithium storage. The optimized composite material exhibits excellent stability and efficient lithium storage performance. Density functional theory calculations and kinetics analysis further clarify superior lithium storage capabilities of this material.
Bimetallic sulfides / carbon fibers / porous structure / electrospinning / lithium-ion battery
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