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A Novel α‐MoO 3 /Single‐Walled Carbon Nanohorns Composite as High‐Performance Anode Material for Fast‐Charging Lithium‐Ion Battery
Author(s) -
Sahu Sumit Ranjan,
Rikka Vallabha Rao,
Haridoss Prathap,
Chatterjee Abhijit,
Gopalan Raghavan,
Prakash Raju
Publication year - 2020
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.202001627
Subject(s) - materials science , anode , composite number , electrochemistry , lithium (medication) , chemical engineering , carbon fibers , lithium ion battery , battery (electricity) , orthorhombic crystal system , electrode , nanotechnology , composite material , crystal structure , organic chemistry , medicine , power (physics) , chemistry , physics , quantum mechanics , engineering , endocrinology
Orthorhombic α‐MoO 3 is a potential anode material for lithium‐ion batteries due to its high theoretical capacity of 1100 mAh g −1 and excellent structural stability. However, its intrinsic poor electronic conductivity and high volume expansion during the charge–discharge process impede it from achieving a high practical capacity. A novel composite of α‐MoO 3 nanobelts and single‐walled carbon nanohorns (SWCNHs) is synthesized by a facile microwave hydrothermal technique and demonstrated as a high‐performance anode material for lithium‐ion batteries. The α‐MoO 3 /SWCNH composite displays superior electrochemical properties (654 mAh g −1 at 1 C), excellent rate capability (275 mAh g −1 at 5 C), and outstanding cycle life (capacity retention of >99% after 3000 cycles at 1 C) without any cracking of the electrode. The presence of SWCNHs in the composite enhances the electrochemical properties of α‐MoO 3 by acting as a lithium storage material, electronic conductive medium, and buffer against pulverization.