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Seeding Iron Trifluoride Nanoparticles on Reduced Graphite Oxide for Lithium-Ion Batteries with Enhanced Loading and Stability. | LitMetric

Seeding Iron Trifluoride Nanoparticles on Reduced Graphite Oxide for Lithium-Ion Batteries with Enhanced Loading and Stability.

ACS Appl Mater Interfaces

Chemical Sciences and Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States.

Published: September 2018

AI Article Synopsis

Article Abstract

Development of electric vehicles and portable electronic devices during the past decade calls for lithium-ion batteries (LIBs) with enhanced energy density and higher stability. Integration of FeF phases and carbon structures leads to promising cathode materials for LIBs with high voltage, capacity, and power. In this study, FeF·0.33HO nanoparticles were synthesized on reduced graphite oxide (rGO) nanosheets using an in situ approach. By chemically tuning the interfacial bonding between FeF·0.33HO and rGO, we successfully achieved high particle loading and enhanced cycling stability. Specifically, a discharge capacity of ∼208.3 mAh g was observed at a current density of 0.5 C. The FeF·0.33HO/rGO nanocomposites also demonstrate great cycle capability with a reversible discharge capacity of 133.1 mAh g after 100 cycles at 100 mA g; the capacity retention is about 97%. This study provides an alternative strategy to further improve the stability and performance of iron fluoride/carbon nanocomposite materials for LIB applications.

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Source
http://dx.doi.org/10.1021/acsami.8b08526DOI Listing

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