Abstract
XRD,TEM,ICP,low scan_rate CV and charge/discharge tests were carried out for the studies on the structural and electrochemical behavior of a prepared 3 V manganese oxide cathode for rechargeable lithium ion batteries.XRD analysis revealed that the cathode sample is mainly composed of tunneled Todorokite and layered Vernadite.TEM investigation confirmed that the morphology of the sample is a laminated construction with approximate 10nm layer space.The reversibility of Li + removal/intercalation and structural stability of this sample framework to lithium insertion are good in CV and charge/discharge tests. The discharge capacities were found to be about 129mAh/g obtained on first 30 cycles and remained to be 96mAh/g after 100 charge/discharge cycles.The inlaid cations in the tunnel or interlayer made contribution to the structural and electrochemical stability of this manganese oxide cathode framework.
Keywords
Lithium ion battery, Manganese oxides, Todorokite, Vernadite, structural stability.
Publication Date
1999-02-28
Online Available Date
1999-02-28
Revised Date
1999-02-28
Received Date
1999-02-28
Recommended Citation
Wei Chu, Deyao Liu, Jinkua You, Yong Yang, Zugeng Lin.
Structural and Electrochemical Studies on Todorokite/Vernadite as Cathodes for Rechargeable Lithium Ion Batteries[J]. Journal of Electrochemistry,
1999
,
5(1): Article 12.
DOI: 10.61558/2993-074X.3158
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol5/iss1/12
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons, Power and Energy Commons
