NDLI: Preparation and electrochemical properties of re-synthesized LiCoO$

Content Provider	Springer Nature Link
Author	Li, Li Chen, RenJie Zhang, XiaoXiao Wu, Feng Ge, Jing Xie, Man
Copyright Year	2012
Abstract	A new idea for reuse of the cathode materials of lithium-ion batteries (LIBs) is investigated to develop an environmentally friendly process for recycling spent batteries. LiCoO$_{2}$ is re-synthesized from spent LIBs by leaching and a sol-gel method calcined at high temperature. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) are employed to study the reactions occurring calcination that are responsible for the weight losses. X-ray diffraction (XRD) and scanning electron microscopy (SEM) are used to determine the structures of the LiCoO$_{2}$ powders. It was found that a pure phase of LiCoO$_{2}$ can be obtained by the re-synthesis process. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) are used to evaluate the electrochemical properties of the LiCoO$_{2}$ powders. The discharge capacity of re-synthesized LiCoO$_{2}$ is 137 mAh g$^{−1}$ at the 0.1 C rate, and the capacity retention of the re-synthesized LiCoO$_{2}$ is 97.98% after 20 cycles at the 0.1 C rate, and 88.14% after 40 cycles. The results indicate that the re-synthesized LiCoO$_{2}$ displays good charge/discharge performance and cycling behavior.
Starting Page	4188
Ending Page	4194
Page Count	7
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	57
Issue Number	32
e-ISSN	18619541
Language	English
Publisher	SP Science China Press
Publisher Date	2012-05-28
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	spent lithium-ion batteries lithium cobalt oxide sol-gel recycling Life Sciences Physics Earth Sciences Engineering Science Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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