Characteristics of mesophase pitch-based carbon fibers as anode materials for lithium secondary cells
- Petoca Ltd., Kamisumachi, Ibaraki (Japan). Advanced Material Div.
Mesophase pitch-based Carbon Fibers (MPCF) have been investigated as anode materials for lithium secondary cells by examining their physical and electrochemical properties. Discharge capacity and initial charge-discharge efficiency of the materials were studied in relation to the heat treatment temperatures of MPCF. Carbon fiber which was heat treated at about 3,000 C gave the highest discharge capacity (over 300 mAh/g), good efficiency (92%) and superior current capability (600 mA/g). Carbon fiber heat treated at less than 1,000 C, also has superior discharge capacity (over 500 mAh/g) at the first cycle, however efficiency was relatively low. Some of the relationships between structure of MPCF and electrochemical properties are discussed.
- OSTI ID:
- 162938
- Report Number(s):
- CONF-950412-; ISBN 1-55899-296-0; TRN: IM9604%%42
- Resource Relation:
- Conference: Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 17-21 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of Materials for electrochemical energy storage and conversion -- Batteries, capacitors and fuel cells; Doughty, D.H. [ed.] [Sandia National Labs., Albuquerque, NM (United States)]; Vyas, B. [ed.] [AT and T Bell Labs., Murray Hill, NJ (United States)]; Takamura, Tsutomu [ed.] [Rikkyo Univ., Tokyo (Japan)]; Huff, J.R. [ed.] [Ballard Power Corp., Albuquerque, NM (United States)]; PB: 463 p.; Materials Research Society symposium proceedings, Volume 393
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
40 CHEMISTRY
CARBON FIBERS
FABRICATION
MICROSTRUCTURE
ELECTROCHEMISTRY
ELECTRIC BATTERIES
ANODES
PITCHES
CARBONIZATION
X-RAY DIFFRACTION
SCANNING ELECTRON MICROSCOPY
TEFLON
ELECTRIC CONDUCTIVITY
BULK DENSITY
LITHIUM
LITHIUM PERCHLORATES
CARBONIC ACID ESTERS
VOLTAMETRY
ELECTRIC CHARGES
ELECTRIC DISCHARGES
CURRENT DENSITY
TEMPERATURE DEPENDENCE
EXPERIMENTAL DATA