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Facile Synthesis of Porous Ternary MnTiO 3 /TiO 2 /C Composite with Enhanced Electrochemical Performance as Anode Materials for Lithium Ion Batteries
Author(s) -
Gou Qianzhi,
Li Chao,
Zhang Xueqi,
Zhang Bo,
Huang Deyu,
Lei Caixia
Publication year - 2019
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201800761
Subject(s) - materials science , anode , composite number , ternary operation , electrochemistry , faraday efficiency , lithium (medication) , chemical engineering , porosity , lithium ion battery , composite material , electrode , battery (electricity) , chemistry , medicine , engineering , computer science , programming language , endocrinology , power (physics) , physics , quantum mechanics
A unique porous ternary MnTiO 3 /TiO 2 /C composite is obtained from Mn 2 O 3 /polyaniline precursor through the liquid phase deposition (LPD) method and subsequent carbonization process. When the MnTiO 3 /TiO 2 /C composite is evaluated as anode materials for lithium ion batteries (LIBs), it displays enhanced electrochemical performance, including superior cycling stability (418 mAh g −1 after 200 cycles at 500 mA g −1 ), favorable rate capability (270 mAh g −1 at 4 A g −1 ), and supernal coulombic efficiency (>98% after 200 cycles), compared with pristine Mn 2 O 3 and Mn 2 O 3 /TiO 2 composite. The enhanced electrochemical performance of ternary composite is mainly ascribed to the unique structural design and the synergistic effect of various components. Therefore, the resultant porous ternary MnTiO 3 /TiO 2 /C composite would have great potential as a new generation of anode materials for LIBs.
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