Secondary battery and capacitor utilizing indole compounds
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United States of America Patent
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Apr 17, 2007
Grant Date -
Oct 2, 2003
app pub date -
Feb 13, 2003
filing date -
Feb 26, 2002
priority date (Note) -
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Abstract
A secondary battery and capacitor includes as an active material of an electrode a compound having a trimer structure comprising three structure units of one or more kind of indole compounds selected from indole and indole derivatives and a condensed polycyclic structure having a six-membered ring composed of atoms of the second and the third position of the each three structure units, wherein the active material comprises as the compound a first compound having a trimer structure wherein any bonds between the structure units are formed among the second position of one structure unit and the third position of the other structure unit and a second compound having a trimer structure comprising a bond formed among the second position of one structure unit and the second position of the other structure unit, and a proton is utilized as a charge carrier of the first compound and the second compound.
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