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Flower–like NiCo 2 O 4 Microstructures as Promising Anode Material for High Performance Lithium‐Ion Batteries: Facile Synthesis and its Lithium Storage Properties
Author(s) -
Sun Yuanwei,
Zuo Xintao,
Xu Dan,
Sun Dezhi,
Zhang Xianxi,
Zeng Suyuan
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201601147
Subject(s) - anode , microstructure , materials science , lithium (medication) , electrochemistry , electrolyte , current density , chemical engineering , mesoporous material , thermal stability , electrode , thermal decomposition , decomposition , composite material , chemistry , catalysis , organic chemistry , medicine , endocrinology , physics , quantum mechanics , engineering
Flower‐like NiCo 2 O 4 microstructures were prepared through thermal decomposition of the Ni−Co‐ intermediate. The as‐prepared NiCo 2 O 4 microstructures are proved to be mesoporous according to the N 2 adsorption‐desorption experiments, which is beneficial for the improvement of the electrochemical performance. The as‐prepared NiCo 2 O 4 microstructures exhibit excellent cycling stability (1128 mA h g −1 at a current density of 1000 mA g −1 , after 330 cycles) when being used as the anode materials for lithium‐ion batteries (LIBs). Even being discharged a high current density of 5000 mA g −1 , the discharge capacity can still reach 948.1 mA h g −1 . The superior electrochemical properties can be attributed to the unique 3D structure, structural stability and porous structure, all of which can effectively increase the contact area of the electrode‐electrolyte and improve the stability of anode.