Charge-discharge characteristics of mesophase-pitch-based carbon fibers for lithium cells

Journal Article · Mon Feb 01 04:00:00 EST 1993 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2221044· OSTI ID:6550475

Imanishi, N; Kashiwagi, H; Ichikawa, T; Takeda, Y; Yamamoto, O ^[1]; Inagaki, M ^[2]

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1. Mie Univ., Tsu (Japan)
2. Hokkaido Univ. (Japan)

Mesophase-pitch-based carbon fibers were heat-treated at high temperatures (2,600 or 2,800 C) and examined as anodes for lithium secondary batteries. Four types of carbon fibers were used whose cross-sectional views are: a radial texture with wedge (type A), a radial texture with fine zigzag layers (type B), a double texture (type C), and a concentric texture (type D). Lithium could not be deintercalated after the first lithium intercalation in the type A carbon fiber. The structure of the type A fiber was destroyed during lithium intercalation. The other three types of carbon fibers showed good rechargeability on the first cycle, but demonstrated different behavior after 30 cycles. The highest lithium intercalation and deintercalation capacity was observed for the radially oriented carbon fiber (type B). The x-ray results showed a reversible change in the lattice along the c-axis during the intercalation and deintercalation cycle.

• OSTI ID: 6550475
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 140:2; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METALS
ANODES
CARBON FIBERS
COHERENT SCATTERING
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTRON MICROSCOPY
ELEMENTS
FIBERS
FLUIDS
HEAT TREATMENTS
LASER SPECTROSCOPY
LIQUID CRYSTALS
LIQUIDS
LITHIUM
MATERIALS TESTING
METALS
MICROSCOPY
MICROSTRUCTURE
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PERFORMANCE TESTING
PITCHES
RAMAN SPECTROSCOPY
SCANNING ELECTRON MICROSCOPY
SCATTERING
SPECTROSCOPY
TEMPERATURE RANGE
TEMPERATURE RANGE 1000-4000 K
TESTING
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION