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Rational Design of Porous TiO 2 @N‐Doped Carbon for High Rate Lithium‐Ion Batteries
Author(s) -
Wang Guang,
Qi Ying,
Zhang Dawei,
Bao Jian,
Xu Li,
Zhao Yan,
Qiu Jingxia,
Yuan Shouqi,
Li Huaming
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.201800911
Subject(s) - anode , materials science , lithium (medication) , composite number , electrochemistry , carbon fibers , chemical engineering , doping , nanoparticle , porosity , lithium titanate , ion , lithium ion battery , nanotechnology , electrode , battery (electricity) , composite material , chemistry , optoelectronics , organic chemistry , power (physics) , medicine , physics , quantum mechanics , engineering , endocrinology
Considering the merits of natural biomass, a soybean is designed and applied as a green source for N‐doped carbon to fabricate a TiO 2 @N‐doped carbon (TiO 2 @NC) composite for lithium‐ion batteries (LIBs). The TiO 2 nanoparticles are uniformly anchored on the surface of porous N‐doped carbon frameworks. As anode materials for LIBs, TiO 2 @NC exhibits excellent cycle performance and enhanced rate capacity. After 100 cycles at 1 C, the capacity can be maintained at 282.2 mAh g −1 . In addition, it can even deliver a large reversible capacity of 155 mAh g −1 after 200 cycles at 5 C. These excellent results prove that the designed composite can be applied as a promising anode material for a lithium‐ion storage system with improved electrochemical performances.
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