PURPOSE: To produce a highly-efficient light battery by preparing the electrodes from an unsaturated heterocyclic compound having condensed three hexarings where the central hexaring contains two different atoms located at para- positions and these atoms are selected from a group including O, S and N.
CONSTITUTION: Electrodes 4 and 7 are prepared from a powder of phenoxazine, phenothiazine or a similar compound which is an unsaturated heterocyclic compound having condensed three hexarings where the central hexaring contains two different atoms located at para-positions and these atoms are selected from among O, S, N and substituted N atoms. After the electrodes 4 and 7 are packed into the central holes of glass fiber filter paper pieces 3 and 6 in an argon atmosphere, a diaphragm 5 made of glass fiber filter paper or similar material is compressed between the paper pieces 3 and 6 thereby constituting a secondary battery. By the means mentioned above, it is possible to produce a light battery with a high electric charge density per unit weight by performing reversible electrochemical doping on electrodes made of a usual low-molecular- weight organic compound without performing any polymerization.
FUKAZAWA KATSUMI
MARUYAMA ISAO
SAKON YOSHIHIRO
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