Hierarchical carbon-coated Fe1-xS/mesocarbon microbeads composite as high-performance lithium-ion batteries anode

Future Material Developments for Electric Vehicle Battery Cells Answering Growing Demands from an End-User Perspective

“…Metal (principally iron and manganese) sulphides can provide remarkable capacities above 650 mAh•g −1 and can be obtained from side-products of some industrial activities, which is in favour of the circular economy [90,91]. However, their capacity retention and cycle life are low [92,93]. Many efforts related to these materials have been associated with the development of sulphide-carbon composites to enhance their cycling stability [93][94][95].…”

“…However, their capacity retention and cycle life are low [92,93]. Many efforts related to these materials have been associated with the development of sulphide-carbon composites to enhance their cycling stability [93][94][95]. Nevertheless, to our knowledge they have not yet been implemented in industrial Li-ion cell prototypes.…”

A novel strategy for encapsulating metal sulfide nanoparticles inside hollow carbon nanosphere-aggregated microspheres for efficient potassium ion storage

“…16,17 Among various TMCs, iron sulde materials have garnered the attention of many researchers owing to the natural abundance and environmental friendliness of Fe and S resources. 18,19 Unfortunately, despite these merits, they suffer from large volume changes during repeated charge-discharge processes, which induce inevitable structural stress, leading to capacity fading. 20,21 In addition, iron sulde materials are known to exhibit low electrical conductivity, which deteriorates their electrochemical kinetics.…”

“…20,21 In addition, iron sulde materials are known to exhibit low electrical conductivity, which deteriorates their electrochemical kinetics. 18,22 To address these issues, designing a nanostructure which effectively alleviates the volume changes and accelerates the reaction with alkali-metal ions could be a viable strategy to enhance the electrochemical performance. 23,24 Various nanoporous structures have been synthesized and adopted for battery applications.…”

Rational Synthesis of Fern Leaf-like FeS2@Sulfur-Doped Carbon as an Anode for Superior Lithium-Ion Batteries

“…Due to the increase of the energy crisis and environmental pollution, better secondary batteries with excellent electrochemical performance and low manufacturing cost are in urgent demand to satisfy the power of various flexible electronics and electric and hybrid electric vehicles, intelligent grids, and so on. − At present, Li-ion batteries (LIBs) are still the first choice of secondary batteries due to the improvement of electrochemical performance. − Compared with the current commercial electrode materials, transition metal sulfides can deliver much better electrochemical performance than carbon anodes in LIBs. − Among them, iron sulfides are of particular interest owing to their high theoretical capacity, environmental benignity, naturally abundant reserves, and low cost compared with transition metal oxides. ,− However, iron sulfides have intrinsic low conductivity and suffer from large volume changes during the conversion reaction. Besides, the shuttle effect of polysulfide Li 2 S x (2 < x < 8) also results in the deterioration of the electrochemical performance of iron sulfides.…”