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Ni(OH) 2 ‐Fe 2 O 3 /CNOs Ternary Nanocomposite Designed as an Anode with Complementary Properties for High‐Performance Li–Ion Battery
Author(s) -
Dwivedi Pravin Kumari,
Muniraj Vedi Kuyil Azhagan,
Devarapalli Rami Reddy,
Shelke Manjusha V.
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201702779
Subject(s) - anode , materials science , faraday efficiency , ternary operation , electrochemistry , battery (electricity) , composite number , nanocomposite , current density , chemical engineering , ion , carbon fibers , composite material , electrode , thermodynamics , chemistry , power (physics) , physics , quantum mechanics , computer science , programming language , engineering , organic chemistry
Synthesis of the new ternary hybrid composite with excellent electrochemical performances for Li‐ion battery is demonstrated. The ternary hybrid composite of Ni(OH) 2 ‐Fe 2 O 3 /Carbon Nano Onions (NFOC) is synthesized by using two‐step solution phase method delivers a high reversible discharge capacity of 928 mAhg −1 at 50 mAg −1 and 673 mAhg −1 at a higher current density of 1000 mAg −1 with excellent rate performance. Additionally, it shows to have stable cycle life up to 1000 cycles with 96% capacity retention and more than 99% of coulombic efficiency. The synergetic effect between Ni(OH) 2 , Fe 2 O 3 and carbon nano onions (CNOs) as well as the unique feature of heterostructures are responsible for the improved electrochemical performance of the battery. The reversible reaction of Fe 2 O 3 and Ni(OH) 2 with Li, maintains its long cycle life with higher reversible discharge capacity and CNOs improve the efficient electronic transfer, accommodate substantial volume expansion and maintain the structural integrity of the material during lithiation‐delithiation process.