Characteristics of heat treated polyparaphenylene for lithium-ion secondary batteries

In order to clarify the mechanism of Li-ions insertion/deinsertion into/from polyparaphenylene (PPP)-based carbons, the PPP carbonization has been analyzed. The weight loss of the PPP carbonized samples increased at a faster rate in the temperature range 600–680 °C. Hydrocarbons such as benzene and...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of physics and chemistry of solids 2004-02, Vol.65 (2), p.253-256
Main Authors: Osawa, K., Oshida, K., Nakazawa, T., Nishizawa, T., Ikeda, T., Narita, M., Saito, N., Ito, T., Endo, M., Bonnamy, S.
Format: Article
Language:English
Subjects:
Applied sciences
C. Thermogravimetric analysis
D. Electrical properties
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In order to clarify the mechanism of Li-ions insertion/deinsertion into/from polyparaphenylene (PPP)-based carbons, the PPP carbonization has been analyzed. The weight loss of the PPP carbonized samples increased at a faster rate in the temperature range 600–680 °C. Hydrocarbons such as benzene and biphenyl were mainly detected by gas chromotography–mass spectrometry at a temperature of 710 °C during thermo-gravimetric analysis of PPP. The microtexture and the structure of heat treated PPP samples were characterized by high resolution transmission electron microscopy and investigated by image processing. The resistivity measurements of heat treated PPP showed a drastic decrease in the 680–730 °C HTT range. We related the microtexture evolution, the hydrocarbons release and the resistivity decrease of PPP carbonized samples to Li-ion battery capacity.
ISSN:0022-3697
1879-2553
DOI:10.1016/j.jpcs.2003.11.030