Open AccessFacile synthesis of reduced graphene oxide/NH 4 V 3 O 8 with high capacity as a cathode material for lithium ion batteries
Author(s) -
Kou Lingjiang,
Cao Liyun,
Huang Jianfeng,
Yang Jun
Publication year - 2017
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2017.0107
Subject(s) - graphene , materials science , lithium (medication) , electrochemistry , cathode , oxide , nanocomposite , chemical engineering , hydrothermal synthesis , ion , hydrothermal circulation , diffusion , lithium ion battery , conductivity , nanoparticle , nanomaterials , nanotechnology , battery (electricity) , electrode , metallurgy , chemistry , organic chemistry , medicine , endocrinology , engineering , power (physics) , physics , quantum mechanics , thermodynamics
Owing to low‐electronic conductivity and long lithium ion diffusion path of NH 4 V 3 O 8 limit its application for lithium‐ion batteries (LIBs). To overcome these limitation, a new nano‐composites material of NH 4 V 3 O 8 ‐based have been successfully fabricated by a facial and environmental friendly approach, without the addition of any other template or surfactant. A facile hydrothermal route is employed to synthesised the reduced graphene oxide(rGO)/NH 4 V 3 O 8 composites. Results show that the NH 4 V 3 O 8 nano‐belt are well distributed on the surface of rGO nanosheets. The resulted rGO/NH 4 V 3 O 8 nanocomposites exhibit a high capacity as a cathode material for LIBs in comparison with the bare NH 4 V 3 O 8 . When used as cathode material for LIBs, it delivers a maximum discharge capacity of 253 mAhg −1 at 15 mAg −1 , 70 mAhg −1 larger than that of the pristine one. The enhanced electrochemical performance is attributed to the synergetic effects between NH 4 V 3 O 8 and rGO, such as increased conductivity and shortened lithium ion diffusion path.