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Author Kim, Soo Kyung ♦ Yang, Dong Hyo ♦ Sohn, Jeong Soo ♦ Jung, Yong Chan
Source SpringerLink
Content type Text
Publisher The Korean Institute of Metals and Materials
File Format PDF
Copyright Year ©2012
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword energy storage materials ♦ recycling ♦ electrochemistry ♦ transmission electron microscopy ♦ spent lithium ion batteries ♦ Continuum Mechanics and Mechanics of Materials ♦ Characterization and Evaluation of Materials ♦ Engineering Thermodynamics, Heat and Mass Transfer ♦ Operating Procedures, Materials Treatment ♦ Metallic Materials ♦ Magnetism, Magnetic Materials
Abstract A recycling process involving chemical, mechanical, and electrochemical steps has been applied to recover cobalt from spent lithium ion batteries and resynthesize cathode active materials. LiCo$_{1−x}$Mn$_{x}$O$_{2}$ powders using Co salt including Mn from the leach liquor were resynthesized by solid-state reaction as cathode active materials. When the powder mixture with added Li salt was calcined at 950 °C for 8 hours, well crystallined LiCo$_{1−x}$Mn$_{x}$O$_{2}$ was successfully obtained. The LiCo$_{1−x}$Mn$_{x}$O$_{2}$ powders with a ratio of Co:Mn=10:1 has a discharge capacity of 156.3 mAh/g at a rate of 20 mA/g with no perceptible capacity loss, in sharp contrast to the pure LiCoO$_{2}$ as active materials. The resynthesized LiCo$_{1−x}$Mn$_{x}$O$_{2}$ was proven to have good characteristics as cathode active materials in charge/discharge capacity and cyclic performance.
ISSN 15989623
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2012-04-27
Publisher Place Springer
e-ISSN 20054149
Journal Metals and Materials
Volume Number 18
Issue Number 2
Page Count 6
Starting Page 321
Ending Page 326


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Source: SpringerLink