Carbon letters
- Volume 5 Issue 3
- /
- Pages.118-126
- /
- 2004
- /
- 1976-4251(pISSN)
- /
- 2233-4998(eISSN)
Electrochemical Properties of Coal Tar Pitch based MCMB
-
Suh, Jeong-Kwon
(Applied & Engineering Chemistry Division, Korea Research Institute of Chemical Technology)
;
- Hong, Ji-Sook (Applied & Engineering Chemistry Division, Korea Research Institute of Chemical Technology) ;
- Lee, Jung-Min (Applied & Engineering Chemistry Division, Korea Research Institute of Chemical Technology)
- Received : 2004.03.22
- Accepted : 2004.07.05
- Published : 2004.09.30
Abstract
MCMB (Mesocarbon microbeads) is a kind of anode material for lithium-ion secondary battery. MCMB charge/discharge cycle stability is one of the important criterion at lithium-ion battery operation. In this study, the cycling stability of a lithium-ion secondary battery has been examined. MCMB was made by the direct solvent extraction method. After the MCMB was carbonized and graphitized, the measurement of charge/discharge capacity and efficiency were carried out. In the result, discharge capacity of MCMB in the initial cycle was above 290.0 mAh/g. After the second cycle, efficiency of charge/discharge MCMB was about 98%. These results were similar to the commercial MCMB product.
Keywords