ZHAO Xi, TIAN Yanhong, ZHANG Xuejun, et al. Preparation and characterization of Li4Ti5O12/C anode material for lithium ion batteries[J]. CIESC Journal, 2015, (5): 1989-1995. DOI: 10.11949/j.issn.0438-1157.20141179.
ZHAO Xi, TIAN Yanhong, ZHANG Xuejun, et al. Preparation and characterization of Li4Ti5O12/C anode material for lithium ion batteries[J]. CIESC Journal, 2015, (5): 1989-1995. DOI: 10.11949/j.issn.0438-1157.20141179.DOI:
In order to enhance electrical conductivity and rate capability of Li4Ti5O12
the Li4Ti5O12/C powder was prepared by the sol-gel method
using PEG as carbon source. The performance of Li4Ti5O12/C coated by three different molecular weight carbon sources: PEG (400
600
and 1000)
was investigated with TG
XRD
SEM
TEM
constant current charge-discharge
rate discharge and EIS. The material obtained by using PEG1000 as carbon source had the best electrochemical performance. Initial discharge capacity was 143.5 mA·h·g-1 at 0.1C rate
and discharge capacity remained 105 mA·h·g-1 at 2C rate