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Polypyrrole as an electrode material for secondary lithium cells
Author(s) -
Bittihn R.,
Ely G.,
Woeffler F.,
Münstedt H.,
Naarmann H.,
Naegele D.
Publication year - 1987
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19870080106
Subject(s) - polypyrrole , lithium (medication) , electrode , materials science , chemical engineering , chemistry , electrochemistry , medicine , engineering
Polypyrrole is a promising positive electrode material for the application in secondary lithium cells. The elemental analysis performed on electrochemically prepared polypyrrole films indicates a specific capacity of 82 Ah/kg. This specific capacity can be cycled in half cell experiments for many hundred times. The rate of self discharge of such an electrode is about 1%/day. On the basis of these results it will be shown that a lithium polypyrrole cell of optimal design may arrive at an energy density of about 40 ‐ 60 Wh/kg. First results obtained with practical cells of technical design confirm this statement.