Open AccessLi 4 Ti 5 O 12 /Ti 4 O 7 /carbon nanotubes composite anode material for lithium‐ion batteries
Author(s) -
Zhang Xiaoyan,
Xu Wen,
Li Xing,
Zhong Xiaoxi,
Liu Wanying,
Lin Yuanhua,
Xia Ruochen
Publication year - 2018
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.2017.0799
Subject(s) - anode , materials science , electrochemistry , composite number , spinel , lithium (medication) , carbon nanotube , electrode , chemical engineering , nanotechnology , composite material , metallurgy , chemistry , medicine , engineering , endocrinology
The work describes a method for preparing Li 4 Ti 5 O 12 (LTO)/Ti 4 O 7 /carbon nanotubes (CNTs) composite as anode material for lithium‐ion batteries (LIBs). The electrochemical tests make sure that LTO/Ti 4 O 7 /CNTs composite provides excellent electrochemical performance compared with spinel LTO. Notably, the LTO/Ti 4 O 7 /CNTs composite exhibits good cycle stability, retaining over 78.5% of its initial capacity after 100 cycles at 20°C, whereas that of spinel LTO is 32.6 mAh g −1 (35.4% retention). The significantly improved electrochemical performance of the LTO/Ti 4 O 7 /CNTs electrodes can be mainly ascribed to the improvement of electronic conductivity and faster electron transfer from the CNTs and Ti 4 O 7 . The outstanding electrochemical performance makes it a promising anode material for high‐rate and long life LIBs.