Characteristics of mesophase pitch-based carbon fibers as anode materials for lithium secondary cells

Book · Sun Dec 31 04:00:00 EST 1995

OSTI ID:162938

Tamaki, Toshio ^[1]

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1. 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
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
40 CHEMISTRY
ANODES
BULK DENSITY
CARBON FIBERS
CARBONIC ACID ESTERS
CARBONIZATION
CURRENT DENSITY
ELECTRIC BATTERIES
ELECTRIC CHARGES
ELECTRIC CONDUCTIVITY
ELECTRIC DISCHARGES
ELECTROCHEMISTRY
EXPERIMENTAL DATA
FABRICATION
LITHIUM
LITHIUM PERCHLORATES
MICROSTRUCTURE
PITCHES
SCANNING ELECTRON MICROSCOPY
TEFLON
TEMPERATURE DEPENDENCE
VOLTAMETRY
X-RAY DIFFRACTION