Open AccessContinuous fast pyrolysis synthesis of TiO 2 /C nanohybrid lithium‐ion battery anode
Author(s) -
Wang Xiaoyan,
Funke Axel,
Cheng YaJun,
Song Fang,
Yin Shanshan,
Liang Suzhe,
Zuo Xiuxia,
Gao Jie,
MüllerBuschbaum Peter,
Xia Yonggao
Publication year - 2021
Publication title -
nano select
Language(s) - English
Resource type - Journals
ISSN - 2688-4011
DOI - 10.1002/nano.202100015
Subject(s) - anode , materials science , calcination , pyrolysis , carbon fibers , nanoparticle , chemical engineering , battery (electricity) , lithium (medication) , lithium ion battery , oxide , current density , electrode , nanotechnology , catalysis , chemistry , composite material , composite number , metallurgy , organic chemistry , medicine , power (physics) , physics , quantum mechanics , endocrinology , engineering
Continuous fast pyrolysis is developed for in situ synthesis of ultra‐small metal oxide nanoparticles embedded into three‐dimensional macroporous carbon matrix as demonstrated by the TiO 2 /carbon nanohybrid. The TiO 2 nanoparticles with the average size of 4.6 nm ± 0.6 nm are uniformly distributed in the in situ generated macroporous carbon matrix. When evaluated as an anode in a lithium‐ion battery, the macroporous TiO 2 /C nanohybrid exhibits a reversible capacity of 483 mAh g –1 after 500 cycles at a current density of 67 mA g –1 , which is 3.6 times higher than that of the TiO 2 /C calcined in a conventional batchwise way. Besides, the capacity retains 93 mAh g –1 at a high current density of 670 mA g –1 . It reveals that the continuous fast pyrolysis is an efficient method to fabricate carbon composition based metal oxides as lithium‐ion battery anode materials.